卸荷岩体力学试验研究进展与展望  

Research Review and Prospect in Experimental Studies for Unloading Rock Mass Mechanics

作　　者：李建林[1,2] 黄天柱 张恒宾 邓华锋[1,2] LI Jianlin;HUANG Tianzhu;ZHANG Hengbin;DENG Huafeng(Key Laboratory of Geological Hazards on Three Gorges R eservoir Area.Ministry of Education.Y ichang 443002,China;College of Civil Engineering&Architecture,China Three Gorges Univ.,Yichang 443002.China)

机构地区：[1]三峡库区地质灾害教育部重点实验室,湖北宜昌443002 [2]三峡大学土木与建筑学院,湖北宜昌443002

出　　处：《三峡大学学报（自然科学版）》2022年第1期1-13,共13页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金重点项目(U2034203)。

摘　　要：卸荷岩体力学试验是卸荷岩体力学理论研究的基础,也是模拟分析工程岩体开挖卸荷变形稳定的主要手段之一.随着岩土工程试验设备和相关测试技术的发展,卸荷岩体力学试验技术与方法取得了明显的进步.本文分三个方面系统回顾和分析了卸荷岩体力学试验的重要研究进展及不足:在室内岩石三轴卸荷试验方面,主要介绍了岩石常规三轴卸荷试验和多源测试技术、多场耦合三轴卸荷试验和室内真三轴卸荷试验技术的发展与应用;在工程岩体开挖卸荷模型试验方面,分析了模型试验在边坡工程与地下工程开挖卸荷模拟中的研究进展;在工程岩体现场开挖卸荷试验方面,介绍了现场真三轴试验系统的研制与应用进展情况,以及现场监测技术在工程岩体开挖卸荷变形与稳定分析中的研究进展.最后,结合卸荷岩体工程发展需求和卸荷岩体力学试验中所存在的不足,对卸荷岩体力学试验将来的发展方向进行了分析展望.Unloading rock mass mechanics test is one of the main methods to study the theoretical research of unloading rock mass and the stability of engineering excavation.With the development of geotechnical engineering technology and related disciplines.new unloading rock mechanics test techniques and methods are constantly emerging.This paper reviews and analyzes the important research progress and deficiencies of unloading rock mass mechanics.In the part of indoor rock triaxial unloading test,the development and application of rock conventional triaxial unloading test,multi-source test technology,multi-field coupling triaxial unloading test and indoor true triaxial unloading test technology are introduced.In the unloading model test of engineering rock mass excavation,the research progress of model test in slope and underground engineering excavation is analyzed.In the part of field excavation unloading test of engineering rock mass,the development and application of field true triaxial test system are introduced,and the research progress of field monitoring technology in the deformation and stability of engineering rock mass excavation are analyzed.Finally.based on the development requirements of unloading rock mass engineering and the insufficient of unloading rock mass mechanics test,the future development of unloading rock mass mechanics test is analyzed and prospected.

关 键 词：卸荷岩体 三轴卸荷试验 模型试验 现场试验 研究展望 

分 类 号：TU43[建筑科学—岩土工程]