13-11-2014, 02:15 PM
Abstracts: A Retaining wall is the structure used to retain earth or other materials and to maintain ground surface at different elevations on either side of it.The most important consideration in proper design and installation of retaining walls is to recognize and counteract the tendency of the retained material to move down slope due to gravity. This creates lateral earth pressure behind the wall which depends on the angle of internal friction (ø) and the cohesive strength © of the retained material, as well as the direction and magnitude of movement the retaining structure undergoes. In present project, analysis will be carried out on R.C.C cantilever retaining walls for the different height and thickness of base slab and find out the economical retaining wall from different retaining wall. The retaining wall is designed by using the limit-state approach. A number of limiting condition modes are analyzed and in each case, a minimum acceptable factor of safety against their occurrence is specified as the criterion for design. The retaining wall must satisfy the following basic conditions: a. The maximum base pressure must not exceed the safe bearing capacity of the soil. b. The base pressure must remain compressive over the entire base width (since masonry used in the retaining wall construction cannot resist appreciable tension). c. The factor of safety against sliding between the base of the wall and the soil below must not be less than 1.5. d. There should be adequate safety against overturning of the wall by rotation about its toe.