Lecture_1_Introduction.pdf

Introduction

Dr Ahmed Ragheb SCM 221 – Planimetric Surveying 1 Lecture 1

Introduction


Faculty of Engineering and Technology

Structural Department - Year 1

Dr Ahmed Ragheb

(Planimetric Surveying 1)

SCM 221

[email protected]

Introduction


Introduction


Planimetric Surveying 1, introduction to the usage of

Surveying in plane.

1

What is SCM 221?

Structural Eng. and Construction Management

Surveying!....What is it?

Positioning and Setting out

Presentation of natural or man-

made features on a map with a

certain scale

Presentation of features from

map to the site

Introduction


Introduction


Where will you see surveyors ?

2

Introduction


Introduction


Aim

Introduction to basic surveying operations along its practical application.

Objectives:

- Introduction to basic surveying measurements and instruments (1 lec)

- Revision of Units and transformation between different unit systems

(distances, angles, Areas) (1 tut)

Aim and Objectives

3

- Introduction to linear measurements (alignment, distance obstacles,

detailing) (2 lecs + 2 labs)

- Mapping (scales, map arrangement) (1 lec + 1 tut)

Introduction


Introduction


Total = 11 lecs + 2 Mid Term Exams + 1 Revision

5 labs + 7 tuts + 1 Practical Exam + 1 Revision

= 14 Weeks

Objectives

4

- Computation of coordinates (direction and positioning) (1 lec + 1 tut)

- Computation of area using various techniques (Graphical, Computational,

semi-Computational) (1 lec + 1 tut)

- The use of traverse in surveying projects (Factors affecting choice of

traverse stations, calculation methods, usage) (2 lecs + 2 tuts)

- Angular measurements using Theodolite (Basic concept, Instrument,

components, HZ and VL angles, corrections) (3 lecs + 3 labs + 1 tut)

Introduction


Introduction


60 Marks

40 Marks

10 Marks 25 Marks (12th

) 25 Marks (6th

)

Practical Exam

Mid Term 10

Assignments 5

Attendance 5

Quiz 5

Mid Term 10

Assignments 5

Attendance 5

Quiz 5 Final Exam

Eng. Alaadin Ibrahim

Eng. Mahmoud Hamdy

Course Details

5

Mid Term Exam 1 November 2015

Mid Term Exam 2 December 2015

Practical Exam January 2016

Final Exams January 2016

Introduction


Introduction


2- ANGLES

HZ angles

θ = R2 – R1 = BAC

VL angles

3- COORDINATES

X, Y, Z

To position features and points relative to a certain coordinate system

(Local or Global)

1- DISTANCES

HZ VL Slope

If not mentioned, then it is Horizontal

Surveying Measurements

6

Introduction


Introduction


1) Tape شريط

Measuring distances 20m, 30m, 50m, 100m

Fabric Tape

- Cheap

- Affected slightly

by temperature

- Not Durable

Steel Tape

- Reasonably priced

- Affected highly

by temperature

- Durable

Invar Tape

- High cost

- Not affected

by temperature

2) Steel Arrow شوكة

For Temporary fixation of points onsite

3) Range Pole شاخص

Steel or wood used for alignment

Surveying Instruments

7

Introduction


Introduction


4) Peg وجد

For Permanent fixation of points onsite

Muddy ground Steel nails for roads Desert ground

5) Theodolite ثيودوليث

For measuring HZ and VL angles

6) Level ميزان

For measuring height differences

7) Electronic Distance Measurement (EDM) قياس المسافات الكحرونيا

Record transmit and receive time

VTT

D Transmittrecieve

2


8

Introduction


Introduction


8) Total Station محطة الرصد المحكاملة

Theodolite + EDM + Processor + Memory + Battery

9) Laser Scanner

Information and positions from scanning

10) Digital Camera

Information and positions from photographs

(Aerial جوي or Terrestrial أرضي )

11) Global Positioning System (GPS) نظام الرصد على األقمار الصناعية

- Observing at least 4 satellites (Known coordinates) and measuring

the distance (R) between receiver and satellite

- Solve 4 equations for 4 unknowns (X, Y, Z, T)


9

R1

R2 R3

R4

Documents

Lecture_1_Introduction.pdf