TESTING STUDY ON THE CLAY SOIL'S UNLOADING PROPERTIES UNDER HIGH STRESS
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摘要: 随着地下工程建设规模的深入与扩大,高应力下土体在卸荷状态下的力学特性研究具有越来越重要的意义。通过对重塑粘土试样进行一系列的K0固结后卸除围压或轴压剪切试验,探讨并总结了关于卸荷应力路径下粘性土变形过程与强度变化关系,为工程建设提供可靠依据。Abstract: With the development of underground engineering,its more and more important to the research on soils unloading mechanical properties under high stress.On the basis of plenty of shear tests with clays unloading confining pressure or axial compression after consolidation,the conclusions of the relationship between clay deformation process and the change in strength under unloading stress path are drawn and explored, which provides a reliable basis for projects.
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Key words:
- high stress /
- clay /
- unloading /
- stress path
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Chamberlain E J,Groves E,Perham R.The Mechanical Behaviour of Frozen Earth Materials under High Pressure Triaxial Test Conditions.Geotechnique,1972,22(3):469~483; [2] Ma Wei,Wu Ziwang,et al.Analysis of Process on the Strength Decrease in Frozen Soils under High Confining Pressure.Cold Regions Science and Technology,1999,29(1):1~7; [3] 马金荣,崔广心,等.深部土的K0固结特性试验研究.冻土工程国家重点实验室年报,2000.9:135~142; [4] 马巍,吴紫汪,等.围压对冻土强度特性的影响.岩土工程学报,1995,17(5):7~11; [5] 程相华.卸荷土体的强度特征.佳木斯大学学报(自然科学版),2000(3); [6] 马金荣.深层土的力学特性研究:[博士学位论文].徐州:中国矿业大学,1998; [7] 沈珠江.关于破坏准则和屈服函数的总结.岩土工程学报,1995,17(1)
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