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

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 empirical formulas with practical value.This research would indicate that its compressibility is low;shear strength 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.