云南姚安盆地粉质黏土物理力学指标相关性特征分析  

The Relative Features Analysis of Physical Mechanics Indicators of Silty Clay in Yaoan Basin of Yunnan

作　　者：陈朝增 吴进轩 杨思航 CHEN Chao-zeng;WU Jing-xuan;YANG Si-hang(Chuxiong Survey Institute,Yunnan Nonferrous Geological Bureau,Chuxiong,Yunnan 675000,China)

机构地区：[1]云南省有色地质局楚雄勘查院,云南楚雄675000

出　　处：《云南冶金》2024年第2期14-20,共7页Yunnan Metallurgy

摘　　要：根据姚安盆地工程勘察报告及其粉质黏土土工试验资料,对该地区粉质黏土的岩土物理力学指标相互间存在的关系进行研究,应用数理统计分析方法统计分析各指标之间的变异性和相关性,建立了几个重要指标之间的拟合方程,结果表明:该区粉质粘土天然含水量与重力密度、压缩模量、孔隙比、压缩系数相关性较好;孔隙比与压缩系数、压缩模量、内聚力、内摩擦角相关性较好;液性指数与压缩系数、压缩模量、内聚力、内摩擦角相关性较好,其研究结果能够为姚安盆地粉质黏土层物理力学参数和地基基础承载力的确定提供经验对比。It studied the relationships among rock and soil physical and mechanical indicators of silty clay in the area according to the collected engineering investigation report and silty clay soil test information,the variability and relativity among indicators were analyzed by mathematical statistical analysis method,it established a fitted equation for several important indicators,results show:the relativity among natural water content,gravity density,compression modulus,void ratio and compressibility of the silty clay in this area is good;the relativity among void ratio and compressibility,compression modulus,cohesion force and internal friction angle is good;the relativity among the liquidity factors,compression modulus,cohesion force and internal friction angle is good,the research results can provide physical mechanics parameters to the silty clay soil layer of Yaoan basin,and provide a reference for confirmation of bearing capacity of the foundation.

关 键 词：姚安盆地 粉质黏土 物理力学指标 

分 类 号：TD263[矿业工程—矿井建设]