CIVIL-III-SURVEYING-I [10CV34]-NOTES - SURVEYING-1 10CV34 SYLLABUS Sub Code 10 CV 34 Hrs Week 04 Total Hrs 52 IA Marks 25 Exam Hours 03 Exam Marks 100

CIVIL-III-SURVEYING-I [10CV34]-NOTES - SURVEYING-1 10CV34...

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SURVEYING-1 10CV34 Department of Civil Engineering, SJB Institute of Technology Page 1 SYLLABUS Sub Code : 10 CV 34 IA Marks : 25 Hrs/ Week : 04 Exam Hours : 03 Total Hrs. : 52 Exam Marks : 100 PART A UNIT 1: Introduction 1.1 Definition of Surveying, 1.2 Classification of Surveys, 1.3 Uses of Surveying Units of Measurements, 1.4 Map & Classification, 1.5 Survey of India topographical Maps and their numbering, 1.6 Basic principles of surveying, 1.7 Errors, Classification, 1.8 Precision and accuracy. 4 Hours UNIT 2: Measurement of horizontal distances 2.1 Chain and types, 2.2 Tape and types, 2.3 EDM devices, 2.3 Ranging of lines 2.4 Direct and Indirect, 2.5 Measurement of distances over sloping grounds, 2.6 Chain and Tape corrections Numerical problems. 5 Hours UNIT 3: Chain Surveying 3.1 Conditions for Chain Surveying, 3.2 Selection of stations and lines, 3.3 Offsets and types, 3.4 Setting out of right angles, 3.5 Working principle and use of optical square, prism square, cross staff., 3.6 Accessories required 3.7 Linear methods of setting out right angles, 3.8 Booking of chain survey work, 3.9 Field book, entries, conventional symbols, 3.10 Obstacles in chain survey, Numerical problems, 3.11 Errors in chain survey and precautions to be taken. 7 Hours UNIT 4: Compass Surveying 4.1 Principle, working and use of Prismatic compass 4.2 Surveyor's compass, 4.3 Meridians and Bearings, 4.4 Magnetic bearing, true bearings, 4.5 WCB and Reduced bearing. 4.6 Dip and Declination 4.7 Accessories required for compass surveying, 4.8 Traverse closed and open traverse 4.9 Computation of bearings of legs of closed traverse given the bearing of one of the legs, 4.10 Computation of included angles given the bearing of legs of a closed traverse. 6 Hours PART B UNIT 5: Compass Traversing continued .... 5.1 Local attraction, determination and corrections, 5.2 Dependent and independent co-ordinates, 5.3 Checks for closed traverse and determination of closing error and its direction 5.4 Bowditch's
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SURVEYING-1 10CV34 Department of Civil Engineering, SJB Institute of Technology Page 2 graphical method of adjustment of closed traverse, 5.5 Bowditch's rule and transit rule, 5.6 Omitted measurements (Only length and corresponding bearing of one line). 8 Hours UNIT 6: Introduction to Levelling 6.1 Principles and basic definitions, 6.2 Fundamental axes and part of a dumpy level, 6.3 Types of adjustments and objectives, 6.4 Temporary adjustments of a dumpy level, 6.5 Sensitiveness of a bubble tube, 6.6 Curvature and refraction correction, 6.7 Type of levelling, 6.8 Simple levelling, 6.9 Reciprocal levelling, 6.10 Profile levelling, 6.11 Cross sectioning, 6.12 Fly levelling 7 Hours UNIT 7: Reduction of Levelling continued .... 7.1 Booking of levels 7.2 Rise and fall method and Height of instrument method 7.3 comparison Arithmetic checks 7.4 Fly back levelling., 7.5 Errors and precautions 6 Hours Contouring 7.6 Contours and their characteristics, 7.7 Methods of contouring, 7.8 direct and indirect methods, 7.9 Interpolation techniques, 7.10 Uses of contours 7.11 Numerical problems on determining intervisibility, 7.12 Grade contours and uses.
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