柱状节理岩体水-力各向异性特性研究进展  

ADVANCES IN HYDRO-MECHANICAL ANISOTROPY OF COLUMNAR JOINTED ROCK MASSES

作　　者：肖维民 韩俊成 田梦婷 XIAO Weimin;HAN Juncheng;TIAN Mengting(School of Civil Engineering,Sichuan Agricultural University,Chengdu 611830,China;Sichuan Higher Education Engineering Research Center for Disaster Prevention and Mitigation of Village Construction,Chengdu 611830,China)

机构地区：[1]四川农业大学,土木工程学院,成都611830 [2]村镇建设防灾减灾四川省高等学校工程研究中心,成都611830

出　　处：《工程地质学报》2023年第3期880-892,共13页Journal of Engineering Geology

基　　金：国家自然科学基金项目(资助号:41877195)。

摘　　要：柱状节理岩体是一类典型的结构性岩体,具有柱状节理网络发育、岩体完整性差的特点,其力学和渗流特性呈现出显著的各向异性。在分析柱状节理成因的基础上,从现场试验、物理模型试验、数值试验和理论分析4个方面系统总结了柱状节理岩体力学和渗流各向异性的最新研究成果,分析了现有研究方法和研究成果的不足,探讨了今后柱状节理岩体力学和渗流各向异性特性研究的新方向,即:基于柱状节理冷却收缩形成机制研究一种模拟柱状节理岩体试件一次成型制备方法,在考虑柱状节理卸荷扩容特性的基础上重点开展卸荷条件下柱状节理岩体力学和渗流各向异性规律研究。As a typical kind of structural rock mass,columnar jointed rock mass has the characteristics of well-developed columnar joints network and poor rock mass integrity.These characteristics lead to significant mechanical and seepage anisotropy.Based on the formation mechanism analyses of columnar joint,current research achievements on the mechanical and seepage anisotropy of columnar jointed rock mass are systematically summarized from the following four aspects of field tests,physical model tests,numerical tests and theoretical analyses.Then the deficiencies of the employed methods and results of present researches are analysed and the future research direction on the mechanical and seepage anisotropy of columnar jointed rock mass is discussed.From the discussions,it is concluded that the future research should focus on the mechanical and seepage anisotropy of columnar jointed rock mass under unloading condition by combining physical model tests with a new method for columnar joint rock mass specimen preparation that can take the formation mechanism of columnar joint into account.

关 键 词：岩石力学 柱状节理岩体 冷却收缩假说 力学各向异性 渗流 

分 类 号：TU45[建筑科学—岩土工程]