Investigation of Salt-Frost Heaving Rules and Mechanical Properties of Chlorite Saline Soil along the Duku Highway under Freezing-Thawing Action

Table 6

The variation trend of displacement with time under different freezing-thawing cycles.

Time	1 freezing-thawing cycle	2 freezing-thawing cycle	3 freezing-thawing cycle	4 freezing-thawing cycle	5 freezing-thawing cycle	6 freezing-thawing cycle	7 freezing-thawing cycle
0-1 h	Increase	Increase	Increase	Smooth	Smooth	Reduce	Reduce
1-2 h	Increase	Reduce	Reduce	Reduce	Reduce	Reduce	Reduce
2–12 h	Smooth	Smooth	First decrease and then increase	Reduce	Reduce	First decrease and then increase	First decrease and then increase
12-13 h	Reduce	Reduce	Reduce	Increase	Reduce	Reduce	Reduce