Development and application of multi-field coupled high-pressure triaxial apparatus for soil
作者机构：Institute of Hydrogeology and Environmental GeologyChinese Academy of Geological SciencesShijiazhuang 050061China SuperMap Software Co.Ltd.Beijing 100000China
出 版 物：《Journal of Groundwater Science and Engineering》 (地下水科学与工程（英文版）)
年 卷 期：2023年第11卷第3期
页 面：308-316页
学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学]
基 金：supported by National Natural Science Foundation(No.41272301 and No.42007171) Nature Fund of Hebei(No.D2021504034) Chinese Academy of Geological Sciences(No.YYWF201628)
主 题：Multi-field coupled triaxial test High and low temperature Horizontal deformation Compressed water release
摘 要：The increasing severity of ground subsidence,ground fissure and other disasters caused by the excessive exploitation of deep underground resources has highlighted the pressing need for effective management.A significant contributing factor to the challenges faced is the inadequacy of existing soil mechanics experimental instruments in providing effective indicators,creating a bottleneck in comprehensively understanding the mechanisms of land *** is urgent to develop a multi-field and multi-functional soil mechanics experimental system to address this *** soil mechanics theories,the existing manufacturing capabilities of triaxial apparatus and the practical demands of the test system,a set of multi-field coupled high-pressure triaxial system is developed tailored for testing deep soils(at depths of approximately 3000 m)and soft *** system incorporates specialized design elements such as high-pressure chamber and horizontal deformation testing *** addition to the conventional triaxial tester functions,its distinctive feature encompass a horizontal deformation tracking measuring device,a water release testing device and temperature control device for the *** ensemble facilitates testing of horizontal and vertical deformation water release and other parameters of samples under a specified stress conditions,at constant or varying temperature ranging from-40℃–90℃.The accuracy of the tested parameters meets the requirements of relevant current *** test system not only provides scientifically robust data for revealing the deformation and failure mechanism of soil subjected to extreme temperature,but also offers critical data support for major engineering projects,deep exploration and mitigation efforts related to soil deformation-induced disaster.
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