JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Prerequisites

None

Course Objectives

The students will be trained to:

• Demonstrate the principles of surveying for the measurement of distance and angles.
• Explain the concepts of levelling and contouring.
• Introduce the concepts of advanced surveying and implementation in shoreline surveying.
• Demonstrate the principles of sea surveying.
• Introduce the concepts of wave and current data collection.
• Explain various stages of fixed offshore structure in view of the operation.
• Introduce the concept and types of compliant structures.
• Demonstrate the basic terminology and floatation principles of floating structures.

Course Outcomes

After successful completion of the course, the student can understand:

• The basic principles and significance of measurement of distance and direction.
• Horizontal and vertical angles.
• Principles, importance and measurement of angles using Theodolite.
• Concepts and terminology in contour mapping.
• Measurement and to plotting the contour maps.
• Basics of total station and GPS.
• Shore line survey and basics of acoustics, application in the field.
• Basics of sea surveying and bathymetry, importance of bathymetry survey, seismic survey, positioning and wave and current data collection and significance of data collection.
• Types and functions of fixed offshore structures, methodology of fabrication transportation, installation and operation of fixed offshore structures, Significance and types of compliant structures.
• The basic principles of floatation and stability of floating structures.
• Stability criteria of neutrally and positively buoyant structures.

UNIT - I

Distance and Direction: Objectives, Principles and classifications of Surveying, chain, tape, Electronic distance measurements, Meridians Azimuths and Barings, declination, computation of angle. Theodolite: Theodolite, description, uses and adjustments – temporary, measurement of horizontal and vertical angles. Principles of Electronic Theodolite.

UNIT - II

Levelling and Contouring: Concept and Terminology, Temporary- method of levelling. Characteristics and Uses of contours- methods of conducting contour surveys and their plotting.

UNIT - III

Introduction to Advanced Surveying: Total Station and Global positioning system and Differential GPS. Hydrographic surveying: Introduction- Shoreline Surveys- Sounding Methods (Bathymetry).

UNIT - IV

Subsea surveying and Geomatics, introduction to the principles of subsea surveying and geomatics is including bathymetry and seismic survey, positioning systems (surface positioning, visual positioning techniques) distance from shore & water depth, generation of surface waves in oceans, wave data collection, and current data collection.

UNIT - V

Functions of offshore structures, fixed offshore structures, types of fixed structures, fabrication, transportation, installation and operation of offshore structures, construction of offshore concrete structures, definition of compliant structures, types of complaint structures. Floating structures, basic hydrostatics, Centre of gravity, center of buoyancy, displacement, law of floatation, draft, keel, Simpson’s rule for areas and centroids, second moments of area, moments of inertia, mass moment of inertia, calculation of metacentric height, stability of floating structures, definition of neutrally and positively buoyant structures.

TEXT BOOKS FOR UNITS I-III:

• 1. Surveying (Vol – 1, 2) ; Higher Surveying, Punmia, B.C., Ashok Kumar Jain and Arun Kumar Jain , Vol 3, Laxmi Publications, 2005.
• 2. Surveying (Vol – 1 & 2), Duggal S K, Tata McGraw Hill, 2004.
• 3. Text book of Surveying, Venkataramaiah, C., Universities Press, 1996.

TEXT BOOKS FOR UNITS IV-VI:

• 1. Handbook of Offshore Engineering, Subrata K. Chakrabarti, Volume 1, Elsevier, 2005.
• 2. Ship Stability for Masters and Mates, Barrass, C. B. and D. R. Derret, 7th Edition, Butterworth-Heinemann, 2012.
• 3. Construction of Marine and Offshore Structure, Gerwick, Jr., C., 3 rd Edition, CRC Press, 2007.