陕西水利Issue(8)：1-3,7,4.
基于水力压裂地应力测试的水电站竖井围岩稳定性分析与衬砌设计优化研究
Stability Analysis of Surrounding Rock and Optimization of Lining Design for a Hydropower Station Shaft Based on Hydraulic Fracturing In-Situ Stress Testing
摘要
Abstract
To meet the critical requirements for the stability design of underground caverns in clean-energy projects,this paper takes the shaft project of the Deersi Hydropower Station as an example.In accordance with the recommendations of the International Society for Rock Mechanics and the ASTM-D4645 international standard,hydraulic fracturing in-situ stress measurement technology,including the HTPF/HF test method and the technically reliable HJ test method,was adopted.A borehole was drilled at shaft location ZK38,and systematic in-situ stress tests were carried out at a depth of 400.2 m.Layered measurements from depths of 75 m to 380 m were conducted to obtain the distribution of the three-dimensional in-situ stress field and the hydraulic fracturing strength of the rock mass,which ranged from 4.2 MPa to 6.9 MPa.The results can provide key geomechanical parameters for the optimal design of underground structures in hydropower stations,helping reduce construction costs and improve engineering safety,and therefore have important theoretical and practical value.关键词
地应力状态/劈裂强度/水力压裂/应力测量Key words
In-situ stress state/splitting strength/hydraulic fracturing/stress measurement分类
建筑与水利引用本文复制引用
张淼,王彦博,李珊珊..基于水力压裂地应力测试的水电站竖井围岩稳定性分析与衬砌设计优化研究[J].陕西水利,2026,(8):1-3,7,4.基金项目
陕西省自然科学基础研究计划项目(2023-JC-QN-0395) （2023-JC-QN-0395）
