【摘要】 对西安地区马兰黄土进行了单轴和常规三轴压缩试验,研究了含水量及围压对其结构强度的影响。结果表明,单轴条件下黄土结构强度随含水量增加呈线性减少,常规三轴条件下含水量和围压对其结构强度有着明显的影响。运用莫尔-库仑理论进一步研究了强度参数C、随含水量的变化规律,为西安地区地质灾害防治及工程设计提供依据。更多还原

【Abstract】 The structural strength of loess is one of the chief factors for engineering constructure of loess areas.Malan loess of Xi’an are studied by the uniaxial compression test and the conventional triaxial compression test,the result shows that the structural strength is decreasing linearly with water content’s increasing in the former test;It is influenced obviously by water content and confining pressure in the latter test.Based on the test,relationship equation between index of strength(C、) and water content is built by Mohr-Coulomb Theory,thus it can provide evidence for geological disaster prevention of Xi’an and its engineering design.更多还原