Question

Please help with this geotechnical engineering problem! I promise I'll rate your answer!

(If needed, assume Gs = 2.7)

A falling-head permeability test was carried out on a clay of diameter 100 mm and length 150 mm. In 1 hour the head in the standpipe of diameter 6 mm dropped from 700 mm to 540 mm. Calculate the hydraulic conductivity of this clay. Assume a temperature of 20°C.

Answer 1

Salution & given, we, know, the Cofficient de permeability - enden falling head permeabilif text is guen ly - k32: 303 a4 logrede At JinenAnca do sample- A x _.5o.mn A-) rex (100) 4 7854 mm2 area de stond pipe =) a) rx 622 28.274 mm² che 3 700 mm, 623 540mm ett 1h 7 60X60 3 3600 see. so, k3) 2'503 x 28:274x1.50 lagpo 700) 7854x36000 540 R) 3:893x10 mm/ser.