GTU Civil Engineering (Semester 6)
Advanced Construction & Equipment
May 2015
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Classify various types of piles based on : (i) Function (ii) Material and Composition
7 M
1 (b) Describe the methods adopted to facilitate the sinking of caissons with its advantages and disadvantages
7 M

2 (a) Describe the procedure of pumping from well points for de-watering. What are its advantages?
7 M
2 (b) Describe pile load test for determining the bearing capacity of a Pile.
7 M
2 (c) Define a Coffer Dam. Explain with sketches: (i) Earth-fill Coffer Dam, (ii) Cellular Coffer Dam.
7 M

3 (a) Explain with sketches the method of forming Button Bottom Pile and Simplex Pile
7 M
3 (b) What are the factors to be considered, while making choice between coffer dam and caisson?
7 M
3 (c) What are the various reasons of pulling out of piles from their positions? What are the methods adopted for it?
7 M
3 (d) What are monoliths? Describe its construction procedure, giving detailed sketch. What are its advantages, disadvantages and uses.
7 M

4 (a) Describe Piping in single wall coffer-dams.
7 M
4 (b) Why is formwork necessary? What are the requirements of a good formwork? Which are the materials used for preparing form work.
7 M
4 (c) Describe Box Caissons, giving neat sketch. In which situations box caissons are Adopted?
7 M
4 (d) What are the different types of centering for big arches of bridges? Explain briefly each of them
7 M

5 (a) Explain the difference between Repair, Restoration, and Retrofitting.
7 M
5 (b) What is meant by pre-stressed concrete? What are the advantages and disadvantages of it?
7 M
5 (c) Describe various properties of earthquakes resistant construction for better seismic performance.
7 M
5 (d) What is meant by Demolition? What are the factors affecting the evaluation of demolition methods?
7 M



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