CE 115 FIELD MEASUREMENTS
Theory of Measurements and Errors (SG-3)
Name: _
Please complete the following problems in pencil on engineering paper.
Thought of the day: "Remove not the ancient landmark,
Distance Measurement
Chapter 6
Methods For Measuring Distances
Pacing
A quick, easy method of determining distances.
Can achieve an accuracy of 1/50 to 1/100.
Odometer
Measuring Wheel that counts the
Leveling Computations
Chapter 5
Adjustments of Level Circuits
Level Circuits can be adjusted based on the lengths
of lines leveled or the number of setups between
benchmarks.
1
Adjustments of Level Ci
CE 115 FIELD MEASUREMENTS
Introduction to Surveying (SG-1)
Name: _
Define surveying using your own words:
Surveying can be thought of as a 5-step process: The five steps are:
1)
2)
3)
4)
5)
Decision-M
CE 115 FIELD MEASUREMENTS
Type (check one):
Required: X
Elective:
2007-2008 Catalog Data:
CE 115 Field Measurements. 3 credits. Theory of measurements and errors.
Measurement of line, direction and an
Angles, Azimuths
and Bearings
Chapter 7
1
Subdivision Drawing
Drawing shows
bearings of the
Centerline of each
roadway and the
tangent distance
between points.
Each lot is defined
using bearings and
l
Horizontal Curves
Chapter 24
Types of Circular Curves
Simple Curve
Reverse Curves
Compound Curves Broken-Back Curves
Broken-
Broken-Back Curves should be avoided if
Brokenpossible. It is better to rep
Theory of Errors in
Observations
Chapter 3
Errors in Measurement
No Measurement is Exact
Every Measurement Contains Errors
The True Value of a Measurement is
Never Known
The Exact Error Present is Alw
Theory of Errors in
Observations
Chapter 3
(continued)
50, 90 and 95 Percent Errors
The 50% error or probable error establishes the limits within an
observation has the same chance of falling within t
Leveling
Chapter 4
Why do we perform leveling surveys?
To determine the topography of sites for design
projects
Set grades and elevations for construction
projects
Compute volumes of earthwork
1
Old D
/ Various conversions from decimal to binary, octal, hexa
/ using bitwise operators
/
#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
void displayBinary (int, int);
void d
/*
Structure variables can be passed by values and
can also be passed by reference
The return type can also be a structure
*/
#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace st
/ Using bitwise operators to check if a
/ positive integer is odd or even
#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
/ A function to check if a an integer is
/ odd or
Introduction to Measurements
Why do we need
measurements?
Introduction to Measurements
The tombs of Egyptian pharaohs the pyramids
were constructed by builders using more than simple
rulers: the pyra
CE 115 FIELD MEASUREMENTS
Horizontal Curves (SG-20)
Name: _
Refer to the accompanying plan view of a roadway. Given the information on the
drawing, compute the degree of curvature in DMS, tangent dist
CE 115 FIELD MEASUREMENTS
Adjustment of Leveling Circuits and Reciprocal Leveling (SG-9)
Name: _
1) A differential leveling circuit began and closed on BM 46-1453-3.65 bridge. The BS
and FS distances
CE 115 FIELD MEASUREMENTS
Magnetic Declination (SG-13)
Name: _
_ is defined as the horizontal angle from
the geodetic meridian to the magnetic meridian. Since the magnetic pole positions of the
earth
CE 115 FIELD MEASUREMENTS
Measurement Theory (SG-2)
Name: _
There are five kinds of surveying measurements. These include:
_, _, _,
_, and _. Combinations of these types of
measurements are used to de
CE 115 FIELD MEASUREMENTS
Vertical Curves (SG-10)
Name: _
1) A grade g1 = 5% intersects grade g2 = -4% at STA 92+00. The elevation at STA
92+00 is 100.00 feet. An equal-tangent parabolic curve 800 fee
CE 115 FIELD MEASUREMENTS
Stadia Computations (SG-18)
Name: _
Calculate the horizontal distance AB and the elevation of B for the following stadia
readings taken at A. The elevation of point A is 455.
CE 115 FIELD MEASUREMENTS
More Vertical Curves (SG-11)
Name: _
1) A back tangent grade g1 = 5% intersects a forward tangent grade g2 = -5% at STA
20+00. The elevation at STA 20+00 is 100.00 feet. An u
CE 115 FIELD MEASUREMENTS
Linear Measurements (SG-5)
Name: _
In plane surveying the distance between two points is always the _
distance. Linear measurements may be obtained by the following methods:
CE 115 FIELD MEASUREMENTS
Leveling and Trigonometric Leveling (SG-8)
Name: _
1) The slope distance and zenith angle measured from point A to point B were
13,608.21 ft and 96 17 18, respectively. The i
CE 115 FIELD MEASUREMENTS
Error in a Product and Weighted Measurements (SG-4)
Name: _
Please complete the following problems in pencil on engineering paper.
1) A 3 acre square parcel of land is to be
CE 115 FIELD MEASUREMENTS
Fall 2006
Tentative Lab Assignments
Lab I
Party 1
Hilliard
Syzdek
Boyer
Linear measurement by pacing and taping
Party 2
PC,N
OBryant
PC,N
C
Sandifer
C
C
Randall
C
Lab II
Part
CE 115 FIELD MEASUREMENTS
Angles, Bearings, and Azimuths (SG-12)
Name: _
Angles are classified as _ or _ depending on the plane in
which they are measured. _ angles are needed to determine the interio
CE 115 FIELD MEASUREMENTS
Leveling (SG-7)
Name: _
Leveling is the process by which elevation of points or the vertical distances between
points are determined. It is important for _, _ and
architectur
CE 115 FIELD MEASUREMENTS
Closed Traverse
Departures, Latitudes, Linear Misclosure and Relative Precision (SG-14)
Name: _
Compute the bearings and departure/latitudes for each side of the accompanying