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Any one could offer a good explanation of the following, thanks. 1) Why the void ratio of fine grained soil is higher? 2) Why the void ratio of clay is highest? (by comparing with sand, gravel, silty sand) Thanks

Thanks Panars and oldestguy..[bigsmile]

hi KootK, thanks for the information, apologies for my slow response as I was trying to understand [ponder]....it and thought might raise another questions or two.

may I know should a frame be designed for total earthquake load that is acting at each floor? if no, how should the total earthquake load be allocated to each frame? Thanks for responding

Thanks for the response. My understanding is that in the direct shear box the failure surface is already pre-determined at the interface between the top and bottom half, the undulated profile in the steel plate is to facilitate drainage during shearing, so it should not matter how it is placed.

in the direct shear box test, there are two steel plates (top and bottom) that sandwich the sample. one side of the steel plate is smooth but the other side has a undulated profile that is in contact with the soil sample. I watch a video which say that when placing the steel plate, the direction...