ce220 lab instructions

CE220 Lab Manual – Fall 2010 1/32

CALIFORNIA STATE POLYTECHNIC UNIVERSITY, POMONA

CE 220L– Advance Surveying Lab

Lab Instructions

Prof. Allan Ng

Fall 10


Table of Contents INTRODUCTION TO LAB PROCEDURES ............................................................................... 3

LAB #1: TOTAL STATION SET UP and PERFORM A 3-POINTS RESECTION with

ROBOTIC INSTRUMENT ............................................................................................................ 6

LAB #2: THREE-WIRE PRECISE LEVELING .......................................................................... 9

LAB #3: MEASUREMENT OF HEIGHT OF THE CLA BUILDING ...................................... 12

LAB #4: STAKING OUT A SIMPLE CURVE

(First of three rotating exercise over three weeks period) ............................................................... 14

LAB #5: STAKING OUT A COMPOUND CURVE with ROBOTIC TOTAL STATION

(Second of three rotating exercise over three weeks period) ........................................................... 16

LAB #6: STAKING OUT A SIMPLE BUILDING ENVELOPE

(Third of three rotating exercise over three weeks period) .............................................................. 18

LAB #7: INROADS FINAL PORJECT ....................................................................................... 21

FINAL REPORT REQUIREMENTS .......................................................................................... 22

APPENDIX A: TRIMBLE 5600 ROBOTIC TOTAL STATION OPERATING

INSTRUCTIONS ………………………………………………………………………………..23

APPENDIX B: TRIMBLE 3600/5000 TOTAL STATION WITH GEODIMETER 600

CONTROL UNIT OPERATING INSTRUCTIONS ................................................................... 27

APPENDIX C: TRIMBLE 3600 TOTAL STATION ELTA CONTROL UNIT OPERATING

INSTRUCTIONS ………………………………………………………………………..………30


INTRODUCTION TO LAB PROCEDURES

FIELD NOTES

Most of the assignments in this lab will be carried out in the field. A record of each field assignment shall be kept in your field book. Your field book shall be kept neat and orderly as it will be collected and graded periodically throughout the quarter.

Your field book shall include your name and group information on the first single page and a table of contents on the first double page.

PENCIL ONLY, NO PEN or ERASER

CE 220L Sect – XX

Instructor : ________ Group number: X Group Member:

Your Name Member’s name


Each field book entry shall include, at minimum, the following information:

- page numbers - lab title - field measurements - calculations - weather conditions & ground cover - date of field work - crew number - crew members - crew member assignments - procedure - list of equipment used - sketch (including, at min.: north arrow, scale or indicate not to scale, adequate information

to show the location of work) - indication of whether the notes are original or a copy

o signature of every group member in original field book o signature of your own if it is a copy of the exercise

- Your final grade in this class is largely based on the quality, completeness and correctness of your field book.

TABLE OF CONTENTS Date Lab #

3 Points Resection

Lab Tilte

1

Page #

Three Wire Precise Leveling

2

3/28/10 1-2


FIELD CREWS

Each student will be assigned to a 4 or 5 person crew. A crew chief should be appointed for each lab assignment. The Crew Chief will be in charge of that particular lab and will be responsible for checking out and returning the equipment at the end of the lab session.

SURVEY EQUIPMENT

Equipment for each lab assignment will be checked out at the beginning of the lab and checked back in when the assignment is finished. Some important things to remember about the use and care of the equipment are as follows:

1. Much of the equipment we will use is very expensive and quite sensitive, great care should be taken to protect the equipment from damage.

2. Instruments should be transported in their cases when taken to and from the field. These instruments may be carried on the tripod from station to station as long as they are held vertically at all times.

3. Malfunctioning equipment should be reported to the instructor.


LAB #1: TOTAL STATION SET UP and PERFORM A 3-POINTS RESECTION with

ROBOTIC INSTRUMENT

Objectives:

1. Get familiar with setting up total station.

2. Understand what is intersection and resection.

3. Perform a 3-points resection to determine the coordinate and elevation of an

unknown point.

Equipment:

1. Robotic Total Station, Tripod, Calculator, field book and pencil, Prism, Prism pole

Instructions:

1. Form a group of 6 people. Set up total station at a random point designated by your instructor. Make sure the instrument is plumb and on top of the assigned point.

2. See appendix A for Trimble 5600 operation instructions.

3. Set up instrument for robotic survey and use the resection program in combination with the points list below; find Northing, Easting and Elevation of the current position.

4. Repeat resection using a different combination of 3 points.

5. Are the coordinates from first trail matching the second trail? If not, explain why in the bottom of the field book.

Point # Northing Easting Elevation Description

101 1844009.01 6615651.31 754.24 PK nail in concrete sidewalk

102 1844034.22 6615706.33 752.35 1/4" rebar in concrete sidewalk


104 1844116.67 6615884.78 744.80 1/4" rebar in concrete sidewalk

105 ? ? ? PK nail on top of the westerly curb

106 1844034.96 6615987.12 736.11 1/4" rebar inside 2" IP on top of curb

107 1843981.7 6615970.14 735.67 PK nail in asphalt concrete pavement


109 1843729.69 6615817.59 738.68 1/4" rebar inside 2" IP on top of curb

110 1843716.95 6615789.08 741.71 PK nail on top of the easterly curb

111 1843795.79 6615806.15 747.93 PK nail in asphalt concrete pavement

112 1843808.79 6615711.58 754.09 1/4" rebar next to concrete sidewalk


N

N.T.S.

Vicinity Map for Control Points:

101

102

103

104 105

106

107

108

109

112 111

110

BLDG 17

BLDG 13

BLDG 9


Field book example:

3 POINTS RESECTION

HR = HI =

PG. 1 PG. 2

WEATHER: MILD

TEMP.: 72°

GROUND COVER:

PROCEDURE:

SET UP TOTAL STATION……

DATE: ….

CREW # 1

CHIEF: … NOTES: … INSTRUMENT: … ROD: …

EQUIPMENT USED:

-TOTAL STATION

- ETC. …

Sketch existing plan view as per your instructor’s guidance

ORIGINAL

A.Ng

OCCUPIED POINT COORDINATES:

EXISTING POINTS COORDINATES: SECOND TRAIL:

FIRST TRAIL:

OCCUPIED POINT COORDINATES:

EXISTING POINTS COORDINATES: PT # North East Elev XXX ____ ____

____

XXX ____ ____

____

XXX ____ ____

____

PT # North East Elev 1001 ____ ____

____

PT # North East Elev XXX ____ ____

____

XXX ____ ____

____

XXX ____ ____

____

PT # North East Elev 1001 ____ ____

____

Explanation in the next page.


LAB #2: THREE-WIRE PRECISE LEVELING

Objectives:

1. Determine the difference in elevation between two points to a maximum accuracy of

0.03ft.

Equipment:

1. Automatic level, tripod, level rod, hand level, lumber crayon

Instructions:

1. Locate the benchmark (BM) on the west side of the College of Engineering Building (Building #9). This benchmark is a brass cap set flush in the sidewalk and stamped “State of California, Department of Public Works.” The elevation of this benchmark is 765.67 feet above sea level. This benchmark will be your first backsight.

2. Set up the level so that the rod can be read at the backsight. The hand level can be used to determine the best location for the instrument.

3. Hold the rod on top of the backsight.

4. Take a backsight 3-wire reading to ±0.005’ on the rod and record it in the field book.

5. Calculate the current instrument height (IH) by adding the average backsight (BS) reading to the backsight elevation and record it in the field book.

6. Determine the location of the foresight (FS) position by making the distance from the instrument to foresight equal to (or nearly equal to) the distance from the backsight to the instrument (these distances can be paced).

7. Mark the foresight position with a lumber crayon or some other temporary marker.

8. Hold the rod on the foresight position.

9. Take a foresight reading on the rod and record it in the field book.

10. Calculate the elevation of the average foresight point by subtracting the foresight reading from the instrument height.

11. Move the instrument down line and set it up in a position where the previous foresight can be read. The previous foresight now becomes your new backsight.

12. Repeat the above steps until you have obtained an elevation on the temporary benchmark (Point 105) assigned by your instructor.

13. Perform a “page check” of your calculations to this point (show in the field book):

BM elev. + BS - FS = TBM elev.

14. Repeat this procedure back to the original benchmark and obtain an elevation on the brass cap. This will “close the loop.”

15. Perform a “page check” of your calculations for the return run (show in the field book).

16. Calculate the loop misclosure (show in the field book). If your misclosure is more than ±0.03’, explain possible sources of error.

17. Calculate adjusted temporary bench mark elevation (show in the field book).


18. Draw a sketch of the closed level loop in Plan View, show all related features to define the path of travel.

Field book example (please remember that you can use additional pages to clearly show all necessary information)

THREE WIRE PRECISE LEVELING PG. 3 PG. 4

STATION

PAGE CHECK: BM elev. + BS - FS = TBM elev. 765.67 + 4.145 – 8.160 = 761.655

A.Ng

Bledsoe

SEE PAGE 3 FOR RETURN RUN

+ BS

STADIA

-FS

STADIA

ELEV.

BENCHMARK USED:

W. SIDE OF COLLEGE OF ENGINEERING BLDG. #9. BRASS

CAP FLUSH IN SIDEWALK STAMPED “STATE OF

CALIFORNIA DEPARTMENT OF PUBLIC WORKS”

ELEVATION = 765.67

TEMPORARY BENCHMARK:

POINT 105, 1/4 “ RE-BAR IN TOP OF CONC.CURB, EAST OF

BUILDING 13.

USE ALL 3 CROSSHAIR TO READ THE ROD AND AVERAGE FOR READING

6.220’

6.020’

3

+1.643

BM 1.735 2.130

10.0 1.550 9.50 1.935

19.5

+1.643

-2.032

+1.643

-2.032

765.67

1.645 2.030 9.00 9.5

4.930 6.095 3 18.5 767.313

TP1 2.750 6.355

10.0 2.255 9.50 5.905

19.5

+2.502

-6.128

+2.502

-6.128

765.282

2.500 6.125 9.00 9.5

7.505 18.385 3 18.5 767.783

PT 105 761.655

WEATHER: MILD

TEMP.: 72°

GROUND COVER:

CONCRETE

PROCEDURE:

USE AUTO LEVEL……

DATE: ….

CREW # 1

CHIEF: … NOTES: … INSTRUMENT: … LEVEL ROD: …

EQUIPMENT USED:

-AUTO LEVEL

- ETC. …

SEE SKETCH, PAGE 4 and as per your instructor’s guidance ORIGINAL

3

6.005’

6.055’

6.105’

6.140’

6.295’

GRADUATED ROD (PHILADELPHIA ROD OR FIBER GLASS ROD)

FEET

TENTHS

HUNDREDTHS

6.120’

MISCLOSURE:

ADJUSTED TBM ELEV.:

Explanation for possible sources of error at Page __


Three Wire Leveling Example:


LAB #3: MEASUREMENT OF HEIGHT OF THE CLA BUILDING

Objectives:

To measure and calculate height of the CLA building of Cal Poly Pomona.

Equipment:

Total Station (or theodolite), Tripod, Calculator, field book and pencil, Prism, Prism pole

Instructions:

1. Setup and level the total station over a point between any point of the polygon and CLA building in the engineering meadow.

2. Measure the height of the instrument. (Or make HI=HR) * Make sure if you recorded the HI and HR in your field book, then you should set the HI and HR to “0 ft” in your instrument, since the sample equations will account for the HI and HR differences.

3. Sight to a point of the traverse (Elev. will be different depending the back-sighted point) and record data.

4. (*) Take the prism to the base of the CLA building.

5. Measure distance and necessary angles.

6. Point to the top of the CLA building, and record VA.

7. Calculate height of the CLA building (Follow formulae from your instructor).

8. Repeat observations from (*).

9. Calculate the difference between values obtained for the two observations. You are expected to achieve an accuracy of 0.05 feet!

10. If your measurement does not check within the allowable misclosure (± 0.05’), you need to explain what are sources of error in your field book.


Field book example (please remember that you can use additional pages to clearly show all necessary information)

MEASUREMENT OF THE HEIGHT OF CLA BUILDING PG. 5 PG. 6

ELEVB=ELEVB=ELEVB=

POINT

WEATHER: MILD

TEMP.: 72°

GROUND COVER:

CONCRETE

PROCEDURE:

USE TOTAL STATION…

DATE: ….

CREW # 1


A.Ng

Bledsoe

EQUIPMENT USED:

-TOTAL STATION

- ETC. …

HCLA = ELEVCLA TOP – ELEVCLA BASE

HI= HR=

VD (h) ELEV HZ HD VA (z) ____ ____ XXX

CLABASE

CLATOP N/A N/A

ELEVTS = ELEVB - HI + HR - hB

ELEVCLA BASE = ELEVTS + hCLA BASE + HI - HR

VA(z) to Top of CLA = α = (90 - z) =

H = HD TAN (α) =

ORIGINAL

ELEVCLA TOP = ELEVTS + HI + H

SEE PAGE 7 FOR 2nd OBSERVATION

XXX.XX’

N/A

0˚0’0”

____ ____ ____ ____ ____

____

Explanation for possible sources of error at Page __


LAB # 4: STAKING OUT A SIMPLE CURVE (First of three rotating exercise over three weeks

period)

Objectives:

Calculate curve deflection angles and respective chord distances as requested. And then stake out a simple curve.

Equipment:

Total Station, Tripod, Tape, Calculator, Field book, Pencil, Prism, Prism pole, Stakes (or nails) and hammer.

Pre Lab Calculations: (50% of this lab)

1. Consider a curve with D=8º, TC=22+69.00 and CT=25+12.00.

2. Calculate the deflection angles and distances to 23+00, 23+50, 24+00, 24+50, 25+00 and CT.

3. Calculate the chord length and station for PI.

4. Show your calculations and write up in field book to the instructor.

Field Instructions: (50% of this lab)

1. Place TC, an arbitrary point (Your instructor will tell you where approximately).

2. Setup the Trimble 5000 series total station at TC (station as 22+69.00).

3. See appendix B for Trimble 5000 operation instructions.

4. Your instructor will give you a backsight direction.

5. Set out the PI and 6 stations mentioned above.

6. Measure and record the distances and deflection angles and compare with the values calculated.


Field book example:

STAKING OUT A SIMPLE CURVE

Stake every even 50ft station D= 8°

PG. 9 PG.10

WEATHER: MILD

TEMP.: 72°

GROUND COVER: :

PROCEDURE:

SET UP TOTAL STATION……

DATE: ….

CREW # 1


EQUIPMENT USED:

-TOTAL STATION

- ETC. …

Sketch existing plan view as per your instructor’s guidance

ORIGINAL

A.Ng

STA Defl. Ang.

Calc. Lc

Rec. Lc

Rec. Defl.

Ang

TC 22+69.00 0 -

0

-

PI 0

T=

0

CT 25+12.00


LAB #5: STAKING OUT A COMPOUND CURVE with ROBOTIC TOTAL STATION

(Second of three rotating exercise over three weeks period)

Objectives:

Convert given compound curve data from azimuth and distance to coordinates (Northing and Easting). Then stake out a compound curve (two adjacent circular curves) with robotic total station, record cut and fill to the existing grade according to the design elevations. Curves will be set out from BC through PCC to EC.

Equipment:

Robotic Total Station, Tripod, Tape, Calculator, Field book, Pencil, Prism, Prism pole, Stakes (or nails) and hammer.


1. Consider a compound curve with D1=8º, T1=35.03 ft, Δ1=5º36’, L1=70 ft; D2=5º, T2=47.53 ft, Δ2=4º45’, L2=95 ft and PI1 to PI2 = 82.56 ft.

2. Azimuth of BC to PI1 = 59º24’1.7”

3. For first group, coordinates of BC are = N: 1843960.00, E: 6615690.00

4. For second group, coordinates of BC are = N: 1843950.00, E: 6615700.00

5. All data is given. Compute azimuth and distance from BC for curve 1 and azimuth and distance from PCC for curve 2 to required points as listed. Convert the calculated azimuth and distance into coordinates given the BC coordinates. Entered calculated coordinates and design elevations into the field book in pencil.



1. Set up on an arbitrary point assigned by the instructor.

2. Turn on Trimble 5600 series robotic total station and start robotic mode.

3. See appendix A for Trimble 5000 operation instructions.

4. Select resection in the survey manual, perform a 3-points resection and record the coordinates and elevation of the arbitrary point.


5. Place BC (23+00), PI1, STA 23+50, PCC, STA 24+00, PI2, STA 24+00 and EC, per your calculated coordinates and designed elevations. Record the staking coordinates and cut/fill for staked stations.

Given this table, calculate angles from baseline and distance from BC.

Point Angle from baseline Distance

BC (23+00)

- -

PI1 59°24’1.7” 35.03

23+50

PCC

PCC - -

24+00

PI2 24+50

EC

Then calculate 8 coordinates for all stations from BC as listed above (PI1, 23+50, PCC, 24+00, PI2, 24+50 , EC). Copy the following table to your field book.

Occupied Point Information:

HI = HR = N = E = Elev =

Points used for resection:

a. b. c.

Calc. Northing Calc. Easting Designed

Elev. Δ Northing Δ Easting Cut / Fill

Given Given 760.00

758.00

754.00

752.00

750.00

748.00

746.00

744.00

CC


LAB #6: STAKING OUT A SIMPLE BUILDING ENVELOPE

(Third of three rotating exercise over three weeks period)

Objectives:

Given a set of building corner coordinates, calculate coordinates of building envelope at 5 feet offset and stake building envelope points.

Equipment:

Total Station, Tripod, Tape, Calculator, Field book, Pencil, Prism, Prism pole, Stakes (or nails) and hammer.


1. Use the given building plot with corner coordinates, use AutoCAD or Microstation to plot the envelope of building.

2. Compute locations of required 5 feet offset stakes, from the lower right corner of the building template rotating clockwise. Use AutoCAD or Microstation to determine the angle and distance respective to back sight reference line. Make sure the design finish floor elevation is set to be 750 feet.



1. Set up Trimble 3600 series total station and back sight points are listed as in the coordinates plot. See appendix C for Trimble 3600 operation instructions.

2. Stake out building envelope coordinates. Occupied Point Information:

HI = HR = N = E = Elev =

Calc. Angle from

baseline

Calc. Distance

Rec. Angle Rec.

Distance Rec. Elev Cut/Fill


For the first group, set up on Point number 112 and back sight 101. These are the listed coordinates for the building corners:


For the second group, set up on Point number 111 and back sight 102. These are the listed coordinates for the building corners:

CE220 AYN SUMMER 10, Cal Poly Pomona - Civil Engineering, Page | 21

LAB # 7: INROADS FINAL PORJECT

See separate handouts for instructions and details.


FINAL REPORT REQUIREMENTS

1. Each student shall prepare and submit his or her own unique report. Your report should be written by you in your own words!

2. Report Characteristics:

a) Font: Times New Roman

b) Font size: 11

c) Line spacing = 1.5 lines

d) Margins: 1” all sides

3. Report shall consist of a minimum of 3 pages (tables should be shown as appendices) plus a title page and include the following information:

a) Title page

b) Introduction: This is an introduction to the report; it should summarize what the report is about and explain the purpose of the report.

c) Procedure:

3-Points Resection: Describe and discuss the procedure and equipment used to determine the northing, easting and elevation of the unknown occupied point for the exercise.

3 Wire Precise Leveling: Describe and discuss the procedure and equipment used to determine the elevation of the temporary bench mark for the project.

Measurement of Height of the CLA building: Describe and discuss the procedure & equipment used to measure the Height of the CLA building. You may also provide a table of your raw traverse measurements. What are the sources of error?

Staking out a Simple Curve: Describe and discuss the procedure used to stake out a simple curve. You may show a table of the adjusted deflection angles & distances.

Staking out a Compound Curve with Robotic Total Station: Describe and discuss the procedure used to stake out a compound curve with robotic total station. What are the pros and cons between traditional and robotic survey method? You may show a table of the adjusted measurements & coordinates.

Staking out a Simple Building Envelope: Describe and discuss the procedure used to stake out a simple building envelope. Why did you need to stake the envelope with offset distance rather than the actual corner? You may show a table of the adjusted measurements & coordinates.

Final Project: How does your plan and profile look? How does your cross section and volume matching with the given value?

d) Conclusion: Discuss your overall feelings about the lab. Did your crew work well together? Discuss important things that you learned. Discuss things you might do differently in the future or things that worked out well.

e) Acknowledgements: Write a statement thanking or acknowledging the people who helped you perform the tasks discussed in this report (crew members, etc.).


APPENDIX A: TRIMBLE 5600 ROBOTIC TOTAL STATION OPERATING INSTRUCTIONS

STEP 1: SET UP TRIMBLE 5600 ROBOTIC TOTAL STATION ON ANY RANDOM POINT ASSIGNED BY YOUR INSTRUCTOR.

TRIPOD

1. Set up the tripod at the appropriate height.

2. Visually check that the tripod is level. 3. Check that the tripod is centered

over the point 4. Attach the instrument to the tripod

and “center” the leveling screws.

OPTICAL PLUMMET

5. Sight through the instrument’s optical plumb (focus if necessary) to determine how far the target is from the point.

a. If the target is very far from the point: move the legs of the tripod while continuing to sight through the optical plumb.

b. If the target is very close to the point use the leveling screws while continuing to sight through the optical plumb to bring the target over the point.

c. Optical plummets should be checked regularly to ensure they are in adjustment, otherwise considerable error can be introduced.

CIRCULAR LEVEL VIAL

6. Check the circular level vial located in the tri-bach. Adjust the height of the tripod legs to bring the instrument’s bubble close to center. Do not move the legs from their position just lengthen or shorten them, one at a time as necessary to bring the bubble into center.

STEP 2: TURN ON THE INSTRUMENT; START TRIMBLE SURVEY CONTROLLER SOFTWARE AND FINE ADJUST LEVEL USING THE ELECTRONIC LEVEL DIALOG.

7. Connect the external battery pack to

the tribach of the total station. 8. Push down and rotate out the yellow

cover, replace it with the Trimble control unit.

9. Press on the controller.


10. Run the Trimble Survey Controller software. The software automatically connects to the instrument and the Electronic level dialog appears.

11. At this time your instrument should be very close to level and very close to the point, check the optical plummet & level bubble to verify this.

a. If your instrument is not very close to level and very close to the point you must repeat steps 5 & 6

b. If your instrument is very close to level and very close to the point continue to step 12.

12. Use the leveling screws to bring the level bubble exactly to center. Both horizontal and vertical fine electronic level vial should be within 30 seconds for both Sighting and Trunnion before you accept for automatic compensation.

13. Sight through the optical plummet, loosen the instrument from the tripod (loosen only) and slide the instrument over the point while sighting.

14. When the instrument is ready to go, tap . The compensator in the Trimble 5600 instrument is automatically initialized now. The instrument will rotate twice and balance the instrument.

15. When prompted by the Corrections dialog, enter appropriate atmospheric values (which

default values should be correct) and then tap . The Survey Controller Basic dialog appears. It displays the current instrument readings.

STEP 3: SET UP TOTAL STATION FOR ROBOTIC SURVEY.

16. Tap to exit Survey Controller Basic mode. 17. To prepare the instrument for robotic connection, select Survey /Start Robotic from the

main menu. A dialog appears. 18. To perform a search centered on the instrument’s current horizontal and vertical angle,

tap Autocentered and OK. 19. To suspend the instrument and the controller, ready for robotic operation, tap OK. 20. Remove the controller from the instrument by push down and rotate out the Trimble

control unit. 21. Attach the Trimble control unit to the Robotic holder.


22. Attach the battery to the rod; turn on the active target and remote radio.

23. Turn on the control unit. The Trimble Survey Controller software connects to the remote radio and start the instrument remotely. Wait for approximately 15 seconds, a beeping sound should be heard from the instrument. Then the electronic level dialog appears again because it is reinitialized to compensate for the earlier removal of the control unit.

24. Check the fine electronic level vials are still within 30 seconds for both Sighting and

Trunnion, then tap . The compensator will rotate twice and balance the instrument.

25. When prompted by the Corrections dialog, enter appropriate atmospheric values (which

default values should be correct) and then tap . The Survey Controller Basic dialog appears. It displays the current instrument readings.

a. Now the total station is in robotic mode. The rod person should stand 50 ft away from the instrument; have the instrument person sight to the prism to align the instrument to rod manually.

b. Once the instrument is tracking, it will follow the rod automatically, unless the direct line of sight is blocked, otherwise all group members can work together at the rod. This is what’s called “Robotic or One-man Survey”.

STEP 4: SET UP ROBOTIC TOTAL STATION FOR RESECTION.

26. Tap to exit Survey Controller Basic mode. When the main Trimble Survey Controller menu appears, you can begin resection. Resection is orientating the survey on a point with unknown coordinates. The resection calculates the coordinates for the instrument point and then orientates the survey.

27. Select Survey / Resection from the main menu. A dialog appears. 28. Make sure the current job is “CE220Llab5” and tap Select. In the Correction dialog, tap

for the default values. 29. Key in an arbitrary and unused point number for the total station location, say 3000,

measure and key in the instrument height, then tap Enter then . 30. Another dialog appears, set the rod up on a known monument directed by instructor,

key in a known point number (from 101-112) and rod height. Make sure Method is set to Angles and Distances and the backsight box is checked.

31. Plumb up the rod and tap Enter then for a measurement shot.


32. Repeat step 30-31 for the second point. 33. Although the control unit might give a result, in order to complete a 3 points resection, a

third point is needed. Tap + point in the lower left of the dialog, repeat step 29-30 for the last point.

34. When completed with a 3 points resection, the instrument will sound off with “Out of Tolerance”, which alerts the user the resection might not be successful due to improper techniques while performing survey. Tap Enter and carefully check the result by tapping Results at the lower right of the dialog. Toggle through page 1 and 2, if ANY of the σN, σE or σEL is more than 0.03’, resection is not successful and the group will have to escape from the current dialog by tapping Esc and restart from step 26.

35. Record the correct Northing, Easting and Elevation in the field book for submittal. 36. Tap Store to store coordinate for the robotic total station; the instrument will sound off

with “Station Set-up Completed”. This will conclude Lab 1 (3 POINTS RESECTION). For Lab 5, follow STEP 5.

STEP 5: USE ROBOTIC TOTAL STATION TO STAKE OUT A COMPOUND CURVE.

37. Select Survey / Stakeout from the main menu. A dialog appears. 38. Select Points and a point dialog will appear. 39. Tap Add at the lower left of the dialog and select All keyed in points. 40. All the pre-calcuated compound curve points should be loaded into the dialog. 41. Tap the desired points for the compound curve, 1001-1008 for group 1 or 2001-2008 for

group 2. 42. A Stake out point dialog will appear. Use information from Go In/Out and Go Left/Right

to help navigate to the correct staking location. Plumb up the rod and tap for a measurement.

43. Then Confirm stake deltas dialog will appear. Check stake deltas, Δ Northing and Δ Easting has to be within ± 0.02 sft, record Δ Northing, Δ Easting and V. Dist in the field book, tap Store to accept the as-staked value. If either Δ Northing or Δ Easting is more than ± 0.02 sft, tap Esc and measure again.

44. Repeat steps 41-43 for the rest of the compound curve points. 45. When finish, tap Esc to exit Trimble Survey Controller software and power down the

instrument remotely.

46. Press and hold to suspend the control unit, make sure the prism and radio are turned off.

47. Return all equipments back to your instructor. This will conclude Lab 5 (STAKING OUT A COMPOUND CURVE WITH ROBOTIC TOTAL STATION).


APPENDIX B: TRIMBLE 3600/5000 TOTAL STATION WITH GEODIMETER 600 CONTROL UNIT OPERATING INSTRUCTIONS

STEP 1: SET UP TRIMBLE 3600/5000 TOTAL STATION ON ANY POINT ASSIGNED BY YOUR INSTRUCTOR.

TRIPOD

1. Set up the tripod at the appropriate height.

2. Visually check that the tripod is level. 3. Check that the tripod is centered

over the point 4. Attach the instrument to the tripod

and “center” the leveling screws. TRIMBLE 3600 TRIMBLE 5000

OPTICAL PLUMMET





CIRCULAR LEVEL VIAL

6. Check the circular level vial located in the tri-bach. Adjust the height of the tripod legs to bring the instrument’s bubble close to center. Do not move the legs from their position just lengthen or shorten them, one at a time as necessary to bring the bubble into center.


STEP 2: TURN ON THE INSTRUMENT; FINE ADJUST LEVEL USING THE ELECTRONIC LEVEL DIALOG.

7. Battery. For

a. Trimble 3600, Connect the battery pack to the total station.

b. Trimble 5000, Connect the external battery pack to the tribach of the total station.

8. Press on the controller.

9. The Electronic level dialog appears.

10. At this time your instrument should be very close to level and very close to the point, check the optical plummet & level bubble to verify this.

a. If your instrument is not very close to level and very close to the point you must repeat steps 5 & 6

b. If your instrument is very close to level and very close to the point continue to step 11.

11. Use the leveling screws to bring the digital level bar exactly to center. 12. Sight through the optical plummet, loosen the instrument from the tripod (loosen only)

and slide the instrument over the point while sighting. 13. When the instrument is ready to go, for

a. Trimble 3600, press accepts for compensator calibration. Follow direction

on CU and rotate 180° accordingly, then press .

b. Trimble 5000, press accepts for compensator calibration. The compensator in the instrument is automatically initialized now. The instrument will rotate twice and balance the instrument.

14. Change to appropriate temperature, pressure, humidity. For prism offset, check prism holding bracket and see the offset value, default value should be 30mm, which translate to a key in value of 0.10 for the instrument. Leave the horizontal reference angle (HAref)

as is. Press to toggle through and accept desired values.


STEP 3: INPUT INSTRUMENT, ROD HEIGHT, BACKSIGHT AND START SURVEY.

15. At this stage, the default screen will show up as the figure to the left.

16. To key in of the instrument height, select function by pressing and . Change IH to the measured instrument height.

17. To key in of the Signal height (rod), select function by pressing and . Change SH to the measured rod height.

18. To set the backsight angle, press and to bring back the Pre-Setting

dialog, Press to toggle through the menu, stop at the horizontal reference angle (HAref), set HAref = 0, sight the instrument to the tip (bottom) of the rod, then adjust the

vertical ONLY sighting to the prism, make sure it is plumb and press . 19. Measure and record distance, for

a. Trimble 3600, aim at the prism on the desired point and

press on the side of instrument, the default dialog of HA,VA and HD will be

displayed, press to toggle to a dialog displaying horizontal angle (HA),

horizontal distance (HD) and vertical difference (VD).

b. Trimble 5000, aim at the prism on the desired point and press , the default

dialog of HA,VA and HD will be displayed, press to toggle to a dialog displaying horizontal angle (HA), horizontal distance (HD) and vertical difference (VD).

20. Record values in the field book and continue the survey.

21. Press and hold to turn off the instrument. 22. Return all equipments back to your instructor.


APPENDIX C: TRIMBLE 3600 TOTAL STATION ELTA CONTROL UNIT OPERATING INSTRUCTIONS

STEP #1: SET UP YOUR TOTAL STATION ON THE POINT ASSIGNED BY YOUR INTRUCTOR

TRIPOD:

1. Set up the tripod at the appropriate height. 2. Visually check that the tripod is leveled. 3. Check that the tripod is centered over the point. 4. Attach the instrument to the tripod “center” the leveling

screws.

OPTICAL PLUMMET:





CIRCULAR LEVEL VIAL:

6. Check the circular level vial located in the tri-bach. Adjust the height of the tripod legs to bring the instrument’s bubble close to the center. Do not move the legs from their position just lengthen or shorten them; one at a time is necessary to bring the bubble into the center.

TRIMBLE 3600


STEP #2: TURN ON THE INSTRUMENT; FINE ADJUST LEVEL USING THE ELECTRONIC LEVEL DIALOG.

7. Connect the battery pack to the total station.

8. Press the button on the controller pad.

9. Select “SystemSN.Trimble3600” and press . 10. At this time your instrument should be very close to level and very close to the point.

Check the optical plumb and level bubble to verify this. a. If your instrument is not very close to level and very close to the point you

must repeat steps 5 & 6. b. If your instrument is very close to level and very close to the point continue to

step 11. 11. Use the leveling screws to bring the digital level bar exactly to center. 12. Sight through the optical plummet, loosen the instrument from the tripod (loosen only)

and slide the instrument over the point while sighting.

13. Use the leveling screws to bring the digital level bar exactly to center.

14. When the instrument’s Trunnion and Sighting are both less than 15”, press accepts for compensator calibration.

15. Make sure you are at the instruments main menu.

16. Press 3 (Measure) to start survey measurement.

0˚1’15.0 -0˚0’49.0


STEP #3: INPUT INSTRUMENT, ROD HEIGHT, BACKSIGHT AND START SURVEY

17. To set up your instrument height, rod height and prism offset:

a. Press the key (a soft key to activate measurement program) and use 0 to toggle through the menu and press InPt to input parameters.

b. Scroll down to Refl and input the height of the prism. c. Scroll down to Inst and input your instrument height. d. Scroll down to Prism C and input the prism offset. (30 mm or 0 mm)

18. To set the backsight angle, press and use 0 to toggle through the menu and press Hz0r. Then sight the instrument to the tip (bottom) of the rod, then adjust the

vertical ONLY sighting to the prism, make sure it is plumb and press .

19. Aim at the prism on the desired point and press on the side of instrument, the

default dialog of SD, Hz and V1 will be displayed. Press , and then hit mode

( ) until your screen reads HD, HZ, and h. Where HD = Horizontal Distance, Hz = horizontal angle and h = Height (Vertical Difference).

20. After measuring a distance, if HD and h disappear from the screen, press and mode, toggle back to the display screen for HD, HZ and h. This might happen for every measurement in the survey process.

21. Record values in the field book and continue the survey.

22. To turn off the instrument, hit twice to quit the program, then press . 23. Return all equipments back to your instructor.

ce220 lab instructions

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