Research on influence of freeze-thaw cycles on static strength of
lime-treated silty clay

ZHAN Gao-feng; ZHANG Qun; ZHU Fu; DONG Wei-zhi

doi:10.16285/j.rsm.2015.S2.048

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Research on influence of freeze-thaw cycles on static strength of lime-treated silty clay

更新时间：2026-06-25

- Research on influence of freeze-thaw cycles on static strength of lime-treated silty clay
- Vol. 36, Issue S2, Pages: 351-356(2015)
- 作者机构：
  
  吉林建筑大学交通科学与工程学院,吉林,长春,130118
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2015.S2.048
  CLC： TU443
- Online First：14 June 2018，
  
  Published：2015
- 稿件说明：
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ZHAN Gao-feng, ZHANG Qun, ZHU Fu, et al. Research on influence of freeze-thaw cycles on static strength of lime-treated silty clay[J]. 2015, 36(S2): 351-356.
DOI：

ZHAN Gao-feng, ZHANG Qun, ZHU Fu, et al. Research on influence of freeze-thaw cycles on static strength of lime-treated silty clay[J]. 2015, 36(S2): 351-356. DOI： 10.16285/j.rsm.2015.S2.048.

摘要

以吉林－荒岗高速公路沿线的粉质黏土为研究对象，对不同石灰掺入比的土样试件进行0、2、4、6、8、10、12次冻融循环试验。通过室内静三轴试验，研究了冻融循环作用对石灰处置粉质黏土强度的影响。研究结果表明，石灰处置粉质黏土的应力-应变关系曲线呈应变软化型，峰值强度随围压增大而升高，粉质黏土峰值强度降低幅度值比石灰处置粉质黏土峰值强度降低幅度值大，经历4次冻融后应力-应变曲线峰值强度趋于稳定；冻融作用后石灰处置粉质黏土抗剪强度衰减率比粉质黏土的抗剪强度衰减率小，抗剪强度随围压的升高而增大；同一围压条件下石灰处置粉质黏土弹性模量随着冻融次数增加逐渐减小，经历4次冻融后基本趋于稳定。

Abstract

The research subject is silty clay found along the Jilin–Huanggang Expressway. Soil samples mixed with different amounts of lime are subjected to static triaxial test and freeze-thaw cycle tests indoors. The aim is to investigate the effects of 0

and 12 freeze-thaw cycles on the strength of lime-treated silty clay. The research results indicate that the stress-strain relationship curve of such clay is the strain-softening type; and its peak-value strength increases with confining pressure increase. Compared to lime-treated silty clay

the decrease rate in peak-value strength of silty clay is faster. After four freeze–thaw cycles

the peak-value strength began to stabilize. The decrease rate in sheer strength of lime-treated silty clay after being subjected to the freeze-thaw effect is slower than that of silty clay. Shear strength even increases with confining pressure increase. Under the condition of same confining pressure

the elastic modulus of lime-treated silty clay gradually decreases with increase of number of freeze-thaw cycles; and basically stabilized after four freeze-thaw cycles.

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