Solve just Q# 2 please: Thank you. I. In a compaction test was performed on a da

Question

Solve just Q# 2 please:

Thank you.

I. In a compaction test was performed on a dam construction material by removing 26% of the larger particles. If the specific gravity of the solids is 2.65, and the results of the compaction test (lab) are given. OWC = 11.5% Pat(mex) 1940 kg/m If the removed particles have a water content of4% and dry density of 2400 kg/m, estimate the optimum water content and maximum dry density in the field. 2. In an unconfined compression test, the failure stress of the sample was 1500 lb/ft2. Drawing the Mohr circle, calculate the undrained cohesion of the soil. 3. Calculate the effect depth for heavy tamping when, a) a 18 ton mass is dropped 12 m b) a 175 ton mass is dropped 25 nm

Explanation / Answer

mohrs circle for unconfined compression test is show below:

hence

C= 1500/2

=750 lb/ft2

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