CIE112: PRINCIPLES OF SURVEYING
Fieldwork # 5
Name:_____________________________________________________________ Time: __________
Date:______________
Section: ____________ Location of
Survey :_______________________________
Title: Profile Leveling Instrument/Materials:
Objectives: At the end of this fieldwork, you would be able to: Automatic level, Leveling rod, Plumb
a. To demonstrate the process of profile leveling; bob
b. To determine the elevation of ground points along the
centreline a proposed roadway; Markers
c. To plot the profile of the centreline along the proposed References:
Roy, S.K. (1999). Fundamentals of
roadway
Surveying. New Delhi: Prentice Hall of
India Private Limited
Schofield, W. & Breach, M. (2007).
Engineering Surveying. Burlington,
Canada: Elvesier Ltd
Profile leveling refers to the process of determining the elevation of points on the ground at most
uniform intervals along the continuous line
PROCEDURES:
a. Select an area where a roadway will be proposed. Measure a total length of at least 200m
using the steel tape and mark the beginning and endpoints with marking chalks or crayons.
b. Decide for centerline of the proposed roadway and stablish stakes for every ful station with
intervals of 10m. Correspondingly the stationing is reflected based on the full station such as
0+00 at the beginning of the roadway, 0+10, 0+20, and to 0+200 at the terminal point of
the proposed road.
c. Establish stakes for all stations having a regular interval of 10m.Plus stations are likewise
establish on areas having a sudden change of elevations or at point where vital
infrastructures are to be placed, such as culvert, etc.
d. Establish a bench mark (BM) near station 0+00 and call it BM-1
e. Select a convenient location near station 0+00 and BM-1 on one side of the roadway, and
set up and level the instrument.
f. Take a backsight reading (BS) on the rod held ob=n BM-1 with the assumed elevation
assigned by instructor above sea level to determine the height of instrument (HI). Record
the data in the profile level notes below.
g. Take and record intermediate foresight (IFS) to the already established stations as many as
possible within the practical limits of the sighting. Record the data accordingly.
h. When further readings on the ground points cannot be observed anymore, establish a
turning (TP-1) to continue the leveling operation. Take a foresight reading to the rod held in
TP-1 and record the data in the profile level notes.
i. Select the convenient area in the direction of the road going to the terminal point. Transfer
and set up the instrument, and take a backsight reading to TP-1. Continue taking rod
readings (IFS) on the ground points along the centerline. Repeat the process, reaching the
endpoint of the proposed roadway
j. Tabulate the observed and computed values accordingly in the profile level notes.
This document is the property of PHINMA EDUCATION
CIE112: PRINCIPLES OF SURVEYING
Fieldwork # 5
Name:_____________________________________________________________ Time: __________
Date:______________
Section: ____________ Location of
Survey :_______________________________
k. Plot both the observed and computed data, showing stations and their corresponding
elevations on a graphing paper with horizontal and vertical lines printed on it (graphing
paper) to represent distances horizontal and vertically.
l. Connect the plotted points representing the elevations of the profile by smooth curve line
drawn freehand.
m. Label the plot of the profile accordingly. The stationing and elevations must be indicated.
FIGURE:
COMPUTATIONS and RESULTS: (use additional paper if necessary)
Profile level Notes.
This document is the property of PHINMA EDUCATION
CIE112: PRINCIPLES OF SURVEYING
Fieldwork # 5
Name:_____________________________________________________________ Time: __________
Date:______________
Section: ____________ Location of
Survey :_______________________________
This document is the property of PHINMA EDUCATION
CIE112: PRINCIPLES OF SURVEYING
Fieldwork # 5
Name:_____________________________________________________________ Time: __________
Date:______________
Section: ____________ Location of
Survey :_______________________________
CONLUSION:
This document is the property of PHINMA EDUCATION
