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More on Olympus Materials Science Microscopes: http://bit.ly/1yzZ49I
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Contact us: http://bit.ly/1rDmq94
Sign up for our Newsletter: http://bit.ly/1j5FOTy
Report Assignment 2 for Site Surveying module which requires us to do Traversing measurement around the campus carpark, for the Bachelor of Quantity Surveying (BQS) Course Semester 2, Taylor's University Lakeside Campus
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Fieldwork 1
1. SCHOOL OF ARCHITECTURAL,
BUILDING &
DESIGN
BACHELOR OF QUANTITY SURVEYING (HONOURS)
AUGUST 2014
[QSB 60203] SITE SURVEYING
Fieldwork 1
Group Member: Eley Chong Shu Hui 0319458
Melvin Lim 0315772
Moy Chin Hoong 0314014
Muhammad Hakim 0310371
Lecturer : CHAI VOON CHIET
2. Contents
Contents Pages
Objective 1
Introduction to auto level 2
Field Data 3
Adjusted Data 4
Summary 5
3. Objectives
To allow us to have a better understanding or knowledge about the process of using the
instrument (Auto-level) rather than learning from a video in class.
To enable us to have the experience in using auto-level such as setting up, collaborating,
leveling and recording data.
To allow us to learn more about the life being a quantity surveyor.
To allow us to experience and expose to the actual working environment in site such as working
under the hot weather.
To allow us to have the teamwork while carrying out the fieldwork.
To enable us to learn how to analyze the data collected.
To allow us to understand how to distribute different types of error from the data collected on
field.
To enable us to have a basic knowledge on how to set up the points for leveling.
To allow us to have the ability to undertake the site measurements and calculations.
To enable us to know the precautions to be taken while using Auto-level.
4. Introduction to auto level
Automatic levels have been with us since the middle of the twentieth century. Today, they are so
common place that the adjective “automatic” is frequently not even used. But this advance in
technology has been the single most significant feature in the history of vertical distance measurement.
The basic principle of optical leveling is to create a line of sight through the telescope that is normal to
the direction of gravity at that point. Before automatic levels, this was done by ensuring that the vertical
axis of the level was truly vertical. Other adjustments ensured that the line of sight was perpendicular to
this vertical axis. The basic advance of the automatic level is that the level of perfection in verticality of
the axis is no longer critical.
Even the well-made pre-automatic instruments, ensuring that the axis was vertical had practical
limitations, thus requiring the surveyor to relevel the instrument with every sighting. The practical
problem resolved for the surveyor is that this releveling is no longer necessary. The technology in the
instrument “automatically” does it.
Auto Level Auto level with rod
5. Field Data
Field Data by Using Rise and Fall Method
Bench Mark
(BM)
Back Sight
(BS)
Fore Sight
(FS)
Rise Fall
Reduced
Level
1.165 100.000
1 1.655 3.510 2.345 97.655
2 1.725 1.590 0.065 97.720
3 1.283 1.630 0.095 97.815
4 1.643 1.530 0.247 97.568
5 1.403 1.428 0.215 97.783
6 1.395 1.405 0.002 97.781
7 1.465 1.580 0.185 97.596
8 1.403 1.425 0.040 97.636
9 3.495 1.285 0.118 97.754
10 1.513 1.305 2.190 99.944
11 1.490 0.023 99.967
18.178
-18.145
18. 178 2.779
-2.746
2.779 100.000
- 99.967
0.033 0.033 0.033
Field Data by Using Height of Collimation Method
Bench Mark
(BM)
Back Sight
(BS)
Fore Sight
(FS)
Height of
Collimation
Reduced
Level
1.165 101.165 100.000
1 1.655 3.510 99.310 97.655
2 1.725 1.590 99.445 97.720
3 1.283 1.630 99.098 97.815
4 1.643 1.530 99.211 97.568
5 1.403 1.428 99.186 97.783
6 1.395 1.405 99.176 97.781
7 1.465 1.580 99.061 97.596
8 1.403 1.425 99.039 97.636
9 3.495 1.285 101.249 97.754
10 1.513 1.305 101.457 99.944
11 1.490 99.967
18.178
-18.145
18.178
100.000
- 99.967
0.033 0.033
7. Summary
An auto level, leveling instrument, or automatic level is an optical instrument used to establish or check
points in the same horizontal plane. It is used in surveying and building to transfer, measure, or set
horizontal levels. The first thing we did was to set up the auto level. This was done by adjusting the foot
screw to bring the bubbles to the center of the circular level and plate level. We moved the base ten
times to get different readings. Everything went well but the readings were not that perfect so we had to
do some error distributions.
The given Bench Mark of Reduced Level was 100.00m and 11 point was set up. Therefore, the
allowable error is 12√(11) = 39 mm, while the error obtained from the fieldwork was just 33 mm, which
means it is acceptable.
![SCHOOL OF ARCHITECTURAL,
BUILDING &
DESIGN
BACHELOR OF QUANTITY SURVEYING (HONOURS)
AUGUST 2014
[QSB 60203] SITE SURVEYING
Fieldwork 1
Group Member: Eley Chong Shu Hui 0319458
Melvin Lim 0315772
Moy Chin Hoong 0314014
Muhammad Hakim 0310371
Lecturer : CHAI VOON CHIET](https://image.slidesharecdn.com/fieldwork1-141203225323-conversion-gate02/85/Fieldwork-1-1-320.jpg)
