成贵铁路宜兴段红层泥岩强度试验统计分析  

Statistical Analysis of Strength Test for Mudstone in the Red-stratum Area of Yibin-Xingwen Section of Chengdu-Guiyang Railway

作　　者：孙意 

机构地区：[1]中铁二院集团地勘岩土公司,成都610031

出　　处：《路基工程》2012年第1期82-84,共3页Subgrade Engineering

摘　　要：结合成贵铁路宜兴段红层泥岩单轴抗压强度试验,在数理统计的基础上,针对不同里程、不同埋藏深度、不同地层的泥岩抗压强度进行比较分析。结果表明泥岩遇水软化严重,在J2S地层中修建桥梁可采用普通桩基础或明挖基础,其他地层采用摩擦桩基础,施工时要注意防水、及时封闭。By uniaxial compressive strength test for mudstone in the red-stratum area of Yibin-Xingwen Section of Chengdu-Guiyang railway and statistical analysis,the compressive strength of mudstone with different mileages,burial depths,strata is compared and analyzed.The result shows that the mudstone will severely soften when meeting with water.The general pile and open-cut base can be used in the J_2s stratum and the friction pile in others.Moreover,the mudstone should be waterproofed and closed without delay when in construction.

关 键 词：泥岩 单轴抗压强度 数理统计 普通桩基础 明挖基础 摩擦桩基础 

分 类 号：TU446[建筑科学—岩土工程]