Download - g20 Setting Out
FAKULTI KEJURUTERAAN AWAM DAN ALAM SEKITAR
JABATAN KEJURUTERAAN AWAM
GEOMATIC LABORATORY
Subject Code BFC 2111
Practicle Title SETTING-OUTCourse Code MG 04Date of Practicle 25 JUNE 2011No. of GroupName of Group Members
Lecturer’s Name
Mark Introduction
Objective
Theory
Equipment
Procedure
Data / Table
Data analysis
Discussion
Plotting / Present
Conclusion / Recommendation
Revision
Mark
Examiner’s Comment Approval Receive
1.0 INTRODUCTION
Construction surveying or setting out is to stake out reference points and markers that will
guide the construction of new structures such as roads or buildings. Setting out is generally
performing existing conditions of the future work site, including topography, existing
buildings and infrastructure, and even including underground infrastructure whenever
possible. After finishing our three previous surveying works (leveling, traverse and
tacheometric ), we then continue our surveying work with setting out. Setting out can be
defined as the process of using the surveying instruments and techniques described in
preceding chapters to transfer information from a plan to the ground. There are three distinct
elements to the task horizontal control to ensure that the new works are in the correct place,
vertical control to ensure that they are at the correct level and vertical alignment to ensure
that multi-storey or underground construction is plumb. Information on the drawing
concerning the proposed works must be transferred to the ground in a format that can be
understood by all levels of the workforce on site.
2.0 OBJECTIVE
To expose student to setting out works and prepare before build a building.
To make a laying out at the corners of a proposed building according to the dimension
taken from building site plan.
3.0 EARLY PREPARATION
To check and understand the suggestion structure designs for see the obstacle around
the setting out work point in the design.
To do surveying and check at the construction site. Determine the suggestion referring
points.
In this setting out work, the traverse point can be the referring points.
4.0 EQUIPMENTS
Total Station Prism
Mini prism Pole
Nails and hammer Tape
Wooden pegs Tripod
5.0 PROCEDURE
1. The traverse and tacheometry plan were used which is from previous project.
2. A suitable area was selected for suggestion of a building construction in the traverse
area.
3. A line of traverse and a station were taken as observation station.
4. Station 2 was chosen as control point and line station 2 to station 3 as a reference line.
5. Bearing and distance of every point of the building area were determined by using
AutoCAD.
6. Setting out work was started.
7. The total station were set at station 2 and observed at station 3. Bearing station 2 to 3
were set as reference bearing.
8. Then bearing station 2 to point A was set to determine the point A location.
9. The pole and mini prism were moved to get exact distance.
10. Measurement the distance were done on point A,B,C,D,E and F. Every point was
marked with a picket.
11. After finish, recheck can be done by measure the distance using measuring tape.
12. The shape of the building was produced.
13. The plotting building points were done in Techeometry plan by using AutoCAD and
setting out plan was produced and report was done.
6.0 RESULT AND DATA ANALYSIS
Example :
Reading from station 2 to point A :
5
S 2
5m
7.07
A
Ө = Tan-1 5 = 45°
5
316°57’00’’ + 45° = 361°57’00”
Theoram Pythagoras;
√5² + 5² = 7.07
Table data
AB
CD
EF
Diagonal Method to measured the distance
DIRECTIONMEASURED
DISTANCE
REAL
DISTANCE
DIFFERENCE
VALUE
A – E 11.180 11.185 0.005
7.0 DISCUSSION
STN TO BEARING DISTANCE (m) REMARKS
2 A 157’00’’ 7.070
B 2830’54’’ 15.811
C 1315’36’’ 18.028
D 157’00’’ 14.142
E 35038’24’’ 18.028
F 33523’06’’ 15.811
Setting out work is done to get the design point for a building after the tacheometry
survey work. An area is selected in the traverse areas as a site project to build the building in
this survey work, a systematic management is important to make the work flow is easy to do.
The field work must finish first to get the bearing and distance that will be use in
setting out survey work. To determine the bearing and the distance, calculation should be
done on the plan for each point of the building that we want to build. The purpose field work
is just to mark the point which has been plot in the purpose building plan.
Based on our traverse area, we plan a building that is an L shaped bungalow inside the
boundary of the traverse. First each corner point of the building that we want to build is set
out using pickets.
The setting out work is done, recheck to make sure every peg is in a right location.
Diagonal method is use in this process. Total station must be in a good condition and also the
peg location must be in the right place to determine the point location precisely to avoid the
error.
8.0 CONCLUSION
The setting out work was done, we had made a conclusion about determine the point
at the building that we want to build. From our tacheometry work, we are able to determine
the site, to locate the new building that is going to be constructing. From the purpose
building plan, we designed the building location and transfer it to the ground surface. If the
setting out was not accurate, the building that we want to build would not be at the correct
location and size. This will contribute a lot of problems while and after the construction
work. Hence, the accuracy of the setting out is very important to guarantee the comfort and
safety to the people. From all these data that we have, we have set the exact location for the
building by using pegs.