Parameter of pore water pressure is not constant and changes with time.
孔压系数随时间而变化，并不是常数。
Pore water pressure in soil will change the effective stress of the soil;
孔隙水压力会改变土体中的有效应力；
The invention also discloses a use method of the pore water pressure gauge.
本发明还公开了上述孔隙水压力计的使用方法。
The invention also discloses a use method of the pore water pressure gauge.
本发明还公开了上述孔隙水压力计的使用方法。
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