Study on Shear Characteristics of Interface between Frozen Soil and Pile during Thawing Process in Permafrost Area

Table 2

Data simulation and evaluation of direct shear tests.

Temperature (℃)	Water content (%)	Normal stress (kPa)	Model equation			Evaluation factor	Evaluate result
			a	b	c
-1	14	100	150.829	6.585	4.707	0.9741	Excellent
		200	180.526	5.816	3.355	0.9717	Excellent
		300	245.981	4.425	2.381	0.9849	Excellent
		400	271.365	3.907	1.929	0.9672	Excellent
	20	100	227.082	3.988	2.629	0.9779	Excellent
		200	283.759	5.250	2.586	0.9774	Excellent
		300	314.042	4.401	2.035	0.9849	Excellent
		400	377.709	4.606	2.284	0.9322	Good
	26	100	258.769	5.349	2.572	0.9702	Excellent
		200	331.113	4.180	1.867	0.9133	Good
		300	396.608	4.614	1.951	0.9551	Excellent
		400	441.891	5.804	2.124	0.9534	Excellent
	32	100	310.517	4.326	2.687	0.9640	Excellent
		200	360.578	4.554	2.357	0.9878	Excellent
		300	452.174	4.341	2.326	0.9843	Excellent
		400	476.639	3.698	2.040	0.9981	Excellent
-2	14	100	166.718	6.11425	3.52856	0.9685	Excellent
		200	243.274	4.63389	2.5436	0.9533	Excellent
		300	324.436	5.24131	2.31406	0.9523	Excellent
		400	413.577	5.23473	2.13034	0.9992	Excellent
	20	100	268.961	5.26845	2.68001	0.9541	Excellent
		200	412.901	5.43617	2.13796	0.9726	Excellent
		300	430.184	5.11493	2.28317	0.9868	Excellent
		400	457.366	4.9462	1.81181	0.9578	Excellent
	26	100	355.921	5.77499	2.21345	0.9492	Good
		200	421.093	5.4962	2.51283	0.9998	Excellent
		300	505.851	6.21587	1.9411	0.9888	Excellent
		400	524.73	6.50302	2.05304	0.9843	Excellent
	32	100	415.073	5.86682	2.57055	0.9772	Excellent
		200	449.922	5.14757	2.1599	0.9964	Excellent
		300	523.639	5.03399	2.18507	0.9969	Excellent
		400	555.215	6.04873	2.24482	0.9791	Excellent
-3	14	100	235.385	6.36999	3.04877	0.9736	Excellent
		200	281.766	6.84127	3.35352	0.9329	Good
		300	359.517	5.37718	2.6125	0.9553	Excellent
		400	479.76	6.2076	2.27153	0.9573	Excellent
	20	100	320.386	7.02463	2.60307	0.9166	Good
		200	423.891	8.1559	2.53091	0.9465	Good
		300	495.942	5.13259	2.27111	0.9992	Excellent
		400	559.518	5.79172	2.23052	0.9791	Excellent
	26	100	446.376	5.21085	1.84894	0.9579	Excellent
		200	490.255	5.22757	2.08002	0.9365	Good
		300	559.539	4.60116	1.89323	0.9982	Excellent
		400	611.795	5.49632	2.0473	0.9460	Good
	32	100	505.942	7.50974	2.3193	0.9681	Excellent
		200	581.912	5.86867	1.97548	0.9395	Good
		300	624.69	5.02087	1.85975	0.9226	Good
		400	657.771	4.58564	1.76187	0.9463	Good