Analysis of Influence Factors of Pore Water Pressure Change in Frozen Soil

Table 3

The minima of pore water pressure during every freezing stage (fre1 and fre2) during tests.

Samples	Initial water content %	Fre1			Fre2
		Minimum of PWP (kPa)
		Pw1	Pw2	Pw3	Pw1	Pw2	Pw3
CN1	10.70	−12.49	−18.689	−16.93	−16.42	−19.07	−17.21
CN2	18.28	−14.89	−44.75	−32.99	−17.22	−61.46	−33.02
CN3	23.98	−20.5	−27.99	−31.72	−18.22	−32.00	−29.33
CN4	31.00	−32.31	−37.93	−35.43	−34.02	−19.29	−45.46
CN5	37.65	−23.12	−33.18	−33.14	−31.16	−33.23	−32.52