广东云浮砾状煤系土的物理力学特性  

Physico-mechanical characteristics of the rudaceous soil of coal measure strata in Yunfu Region,Guangdong Province

作　　者：祝磊[1,2] 洪宝宁[1,2] 

机构地区：[1]河海大学岩土力学与堤坝工程教育部重点实验室,南京210098 [2]河海大学岩土工程科学研究所,南京210098

出　　处：《水文地质工程地质》2009年第1期86-89,共4页Hydrogeology & Engineering Geology

基　　金：国家自然科学基金资助项目(50279008);广东省交通厅科技资助项目(2002-06);江苏省交通科学研究计划资助项目(04Y006)

摘　　要：采用室内试验方法,系统研究了广东云浮地区砾状煤系土的物理力学特性,重点论述了砾状煤系土抗剪强度变化规律,提出了砾状煤系土的多项强度指标,建立了具有实用参考价值的经验性公式。研究结果表明煤系土压缩性低,抗剪强度随含水率的增加而降低,粘聚力受含水量影响较大,而内摩擦角较小。According to the results of tests in laboratory, the geotechnical properties and some laws of shear strength properties of the rudaceous soil of coal measure strata are discussed emphatically ; and some critical indices of the rudaceous soil of coal measure strata are put forward. And the paper gives the value. This research would indicate that its compressibility is low; shear strength empirical formulas with practical reduce as water content increase ; and cohesive strength is affected great by water content while friction angle is small. And this research would provide theoretical reference for evaluating properties, roadbed treatment and slope treatment of the rudaceous soil of coal measure strata.

关 键 词：物理力学性质 重塑砾状煤系土 抗剪强度 

分 类 号：P642.11[天文地球—工程地质学]