Site surveying report ii

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  • 1.SCHOOL OF ARCHITECTURE, BUILDING AND DESIGN BACHELOR OF QUANTITY SURVEYING (HONOURS)QSB1813 Site Surveying Field Work Report II Traverse Survey August Semester 2013 Submission Date: 4th December 2013NameStudent IDLow Rong Tzuoo0308336Rueul Chan Ernyi0315150Wong Choong Ling0314504Yam Yih Hwan03058611MarksSite Surveying - Report II (Traverse Survey)

2. Table of Content Cover Page1Table of Content2Introduction to Traverse Survey3-4Objective5Outline of Apparatus6-7Traverse Survey Result8 - 10Discussion11Conclusion12Learning Outcomes2Page13Site Surveying - Report II (Traverse Survey) 3. Introduction to Traverse Survey Traversing is a type of survey in which a number of connected survey lines form the framework and the directions and lengths of the survey lines are measured with the help of an angle measuring instrument and a tape or chain respectively. There are two types of traverse surveying, Closed traverse: When the lines form a circuit which ends at the starting point, it is known as closed traverse. Open traverse: When the lines form a circuit ends elsewhere, it is said to be an open traverse.The closed traverse is suitable for locating the boundaries of lakes, woods, etc.and for survey of large areas. The open traverse is suitable for surveying a long narrow strip of land as required for a road of canal or the coast line. The most satisfactory method of checking the linear measurements consists in chaining each survey line a second time, preferably in the reverse direction on different dates and by different parties.3Site Surveying - Report II (Traverse Survey) 4. Introduction to Traverse Survey The direction of a line is defined by a horizontal angle between the line and an arbitrarily chosen reference line called a meridian. The types of meridians (and thus directions) are, Geodetic:Angle generally measured from geodetic north. Historically south has occasionally been used. Magnetic:Angle measured from magnetic north. Since magnetic fields fluctuate over time, this meridian is time-dependent. Grid:Angle measured from grid (map) north. This angle is dependent on the mapprojection. The types of directions are, Azimuths:Horizontal angles measured clockwise from a reference meridian. Azimuths can be any of the type above, geodetic azimuth, astronomic azimuth, etc. For examples, 34, 157, 235, 317. Bearings: Horizontal angles measured from the meridian either east or west. They can be geodetic, astronomic, etc. Thus they are designated with nomenclature; Require two letters and an acute angle (