UniaxialCompressiveStrengthoftheSaturatedFrozenSiltatConstantStrainRates
- 出版年：2002
- 作者：LI Hai-peng；ZHU Yuan-lin；PAN Wei-dong
- 单位1：State Key Laboratory of Frozen Soil Engineering,CAREERI, CAS
- 出生年：1975
- 语种：中文
- 作者关键词：the saturated frozen silt；conpressive strength；constant；strain rate
- 起始页：659
- 总页数：6
- 经费资助：Project supported by the National Science Foundation of China (Grant No. 40171021)；Innovation Project of CAREERI，CAS ( Grant No.CACX210053)
- 刊名：冰川冻土
- 是否内版：否
- 刊频：双月刊
- 创刊时间：1979
- 主办单位：中国地理学会；中国科学院寒区旱区；环境与工程研究所
- 主编：程国栋
- 地址：兰州市东岗西路260号
- 邮编：730000
- 电子信箱：Edjgg@ns.lzb.ac.cn
- 卷：24
- 期：5
摘要
Uniaxial compressive strength tests were conducted on the saturated frozen Lanzhou silt(loess)at various constant strain rates and at various constant temperatures. It is concluded from the test resultsthat: the compressive strength (бf) is very sensitive to temperature(θ) and increases with the tempera-ture decreasing as a power law. Compressive strength is sensitive to strain rate (ε) and increases withstrain rates increasing within a certain range of strain rates as a power law. Compressive strength decrea-ses when time to failure(t_f) increases, also following a power law. Finally, Compressive strength of fro-zen silt with higher dry density ( γd,) is I1igher than that of frozen silt with lower drydensity. The differ-ence between them is mainly influenced by strain rate.