不同赋存环境下灰岩三轴压缩试验及本构模型研究  

Study on Trixial Tests of Limestone under Different Conditions and Its Constitutive Model

作　　者：祝凯[1] 胡斌[1] 寇天[1] 姚文敏[1] 李俊[1] 

机构地区：[1]中国地质大学(武汉)工程学院,武汉430074

出　　处：《科学技术与工程》2016年第20期253-258,共6页Science Technology and Engineering

基　　金：国家自然科学基金面上项目(41172281);国家科技部973项目(2011CB710604);资助中央高校基本科研业务费专项资金项目(摇篮人才计划CUGL100413;特色学科团队CUG090104)资助

摘　　要：以峨眉山二叠系茅口组灰岩为研究对象,对灰岩进行天然状态与饱和状态的三轴压缩试验,探究灰岩在不同赋存环境下的力学特性。根据试验结果建立灰岩天然状态与饱和状态的本构模型。通过分析天然状态与饱和状态灰岩试验结果的相互关系,得出灰岩在不同赋存环境下本构方程之间的关系,从而可以根据灰岩天然状态本构方程推导出饱和状态下的本构方程。根据试验建立了灰岩本构模型,并确定了相关的物理力学参数,可为类似的边坡稳定性研究提供重要的参考。In order to study the mechanics characteristics of it,triaxial tests were conduced on Permian limestone which Emei Mountain was got under the natural state and saturated state. On the basis of test results,constitutive model of limestone was established,and got the relationship between the constitutive model of natural limestone and saturated limestone. The constitutive model of saturated limestone can be derived from the constitutive model of natural limestone when the relationship between them was knowre. The constitutive model and the mechanics parameter are important to study similar slopes.

关 键 词：灰岩 天然状态 饱和状态 力学特性 本构模型 

分 类 号：TU458.3[建筑科学—岩土工程]