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Question
What are key reasons for conducting pull-out tests for soil nails?
Answer
There are largely four bases for this examination- (i) To verify and verify bond strength between soil and grout adopted during design of soil nails. This is major objective of conducting soil nail pull-out test. (ii) To determine bond strength between soil and grout for future design purpose. Though, if this object is to be achieved, test nails must be loaded to determine ultimate soil or grout bond with an upper limit of 80 percent of ultimate tensile force of steel bars. (iii) To confirm if there is any slippage, creep occurrence. (iv) To check elastic and plastic deformations of test nails. This is observed during repeated loading and unloading cycles of soil nails.
State the short-term deflections If short-term deflections are considered, the instantaneous deflection due to design loads may be calculated using elastic analysis based on t
Question How does an engineer determine digit of cells for concrete box girder bridges ? Answer If depth of a box girder bridge exceeds 1/6 or 1/5 of bridge width, then it is o
principle of working from whole to part
State the Modulus of Elasticity of Concrete The Young's modulus of elasticity of concrete is primarily influenced by the elastic properties of the aggregate and to a lesser ex
describe abot the michelson interfrance
Which of the following stress-strain curves represents a soft and weak material? Solution: As depicted, stress is on the y-axis while the x-axis represents strain.Whe
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Question While design life will it be same as return period for design situations ? Answer Design life means least duration a structure is accepted to last. Longe
Movement accommodation factor is normally specified by manufacturers of joint sealants for designers to design dimension of joints. It is stated as the total movement that a joint
Calculate the Tension Force in Sling The rigging configuration shown below will be used to lift a bridge girder using a 200-ton capacity luffing jib crane onto the foundation a
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