In a falling head permeability test the following data was recorded for a soil sample having a diameter of 150mm and a length of 200mm.        Standpipe diameter is 9mm.                                                    Initial standpipe level (h1) ----- 1200mm ------ 900mm          Final standpipe level (h2) ------ 900mm ------- 750mm        Time interval (t2 – t1) ---------- 65 sec --------- 41 sec Compute the average value of the coefficient of permeability.

Structural Analysis
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In a falling head permeability test the following data was recorded for a soil sample having a diameter of 150mm and a length of 200mm.       

Standpipe diameter is 9mm.                                                   

Initial standpipe level (h1) ----- 1200mm ------ 900mm         

Final standpipe level (h2) ------ 900mm ------- 750mm       

Time interval (t2 – t1) ---------- 65 sec --------- 41 sec

Compute the average value of the coefficient of permeability.

Thank you!

 

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