论文摘要
Rock mechanics plays a critical role in the design and construction of hydroelectric projects including large caverns under high in situ stress, deep tunnels with overburden more than 2500 m, and excavated rock slopes of 700 m in height. For this, this paper conducts a review on the rock mechanics contributions to recent hydroelectric developments in China. It includes the development of new testing facilities,mechanical models, recognition methods for mechanical parameters of rock masses, design flowchart and modeling approaches, cracking-restraint method, governing flowchart of rock engineering risk factors enabling the development of risk-reduced design and risk-reduced construction, and initial and dynamic design methods. As an example, the optimal design of underground powerhouses at the Baihetan hydroelectric plant, China, is given. This includes determination of in situ stresses, prediction of deformation and failure depth of surrounding rock masses, development of the optimal excavation scheme and support design. In situ monitoring results of the displacements and excavation damaged zones（EDZs） have verified the rationality of the design methodology.
论文目录
文章来源
类型: 期刊论文
作者: Xia-Ting Feng,Yang-Yi Zhou,Quan Jiang
来源: Journal of Rock Mechanics and Geotechnical Engineering 2019年03期
年度: 2019
分类: 基础科学,工程科技Ⅱ辑
专业: 水利水电工程
单位: Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University,State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
基金: financial support from the National Natural Science Foundation of China (Grant No. 51621006)
分类号: TV223;TV554
页码: 511-526
总页数: 16
文件大小: 2541K
下载量: 44