Influence of Freeze-thaw Cycles on Engineering Properties of Lime-modified Soil
In order to investigate the feasibility of application of lime-modified soil on subgrade construction in seasonal frost area, a series of freeze-thaw tests and general triaxial tests were conducted. The results showed that the compaction characteristics were obviously improved. The stressstrain relationship curves of lime-modified soil transferred from work-softening to work-hardening after freezing and thawing. The relationship of static strength and elastic modulus vs. blend ratio was quadratic polynomial, namely there was an optimum blend ratio. The static strength decreased in exponential form with increasing of freeze-thaw cycles, while the elastic modulus decreased at first then increased stable state. The cohesion force decreased with increasing of freeze-thaw cycles, while there were no laws on internal frictional angle.
freeze-thaw cycles lime-modified soil engineering properties high-speed railway
Tian-liang Wang Yong-man Zhang Hai-bing Yu Li-ling Zhang
School of civil engineering, Shijiazhuang Tiedao University, Shijiazhuang, China;Key Laboratory of R Shijiazhuang Metro Co. Ltd, Hebei Shijiazhuang, China Tianda Zhuoran Design Institute, Hebei Shijiazhuang, China
国际会议
三峡
英文
2472-2475
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）