昆明某场地原生红黏土物理力学参数关系研究  

Relationship between physical and mechanical parameters of primary red clay from a site in Kunming

作　　者：陈丽旭 罗军尧 杨太强 CHEN Lixu;LUO Junyao;YANG Taiqiang(Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming 650500,China;PowerChina Kunming Engineering Corporation Limited,Kunming 650051,China)

机构地区：[1]昆明理工大学建筑工程学院,云南昆明650500 [2]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051

出　　处：《交通科学与工程》2024年第6期42-48,共7页Journal of Transport Science and Engineering

基　　金：云南省基础研究计划项目青年专项(202301AU070022)。

摘　　要：依据昆明某场地原生红黏土试样的指标数据,对其物理力学参数间的关系进行研究。采用室内试验与原位测试的方法,结合统计学理论,对昆明某场地原生红黏土的物理力学参数进行统计分析。结果表明:研究区原生红黏土的力学性质指标与部分物理性质指标相关;随着含水率的增加,研究区原生红黏土的力学性能显著降低;黏聚力与含水率的关系可用线性函数进行表征,弹性模量随含水率的增加呈指数型减小趋势。研究结果对积累红黏土各参数之间的关系,利用已知参数预测其他不易获取的物理力学参数具有重要意义。Based on the index data of primary red clay samples from a site in Kunming,this paper studied the relationship between its physical and mechanical parameters.The physical and mechanical parameters of the study object were analyzed by the methods of laboratory tests and in-situ tests in combination with statistical theory.The results show that the mechanical properties of the primary red clay in the study area are related to some physical properties.The mechanical properties decreased significantly with the increase of water content,and the relationship between cohesion and water content could be characterized by linear function.The elastic modulus decreased exponentially with the increase of water content.The results are of great significance for accumulating the relationship of parameters and improving the prediction of physical and mechanical parameters which are difficult to obtain by using known parameters.

关 键 词：昆明原生红黏土 物理力学参数 三轴试验 统计分析 

分 类 号：TU435[建筑科学—岩土工程]