有压引水隧洞塌方原因分析及处理措施——以博瓦水电站引水隧洞为例  

Cause analysis and treatment measures for collapse of pressure diversion tunnel——Taking the diversion tunnel of Bowa hydropower station as an example

作　　者：蒋革新 徐显成 JIANG Gexin;XU Xiancheng(Sichuan Liangshan Shuiluohe Power Development Co.,Ltd.,Chengdu 610041,China)

机构地区：[1]四川凉山水洛河电力开发有限公司,四川成都610041

出　　处：《四川建材》2024年第8期233-234,237,共3页Sichuan Building Materials

摘　　要：结合博瓦水电站引水隧洞涌水段塌方情况,分析塌方原因、处理难点,并提出塌方处理原则和措施,并对结构进行复核。通过采用积水引排、反压回填、分台阶开挖、“超前支护”“刚性支护”和“柔性支护”相结合等措施,阐述了该塌方处理的主要技术和关键思路。安全有效地完成塌方处理后,监测数据及运行效果良好,证明了该措施的合理性和有效性。In combination with the collapse of the water inflow section of the diversion tunnel of Bowa Hydropower Station,the causes and treatment difficulties of the collapse are analyzed,and the principles and measures for the collapse treatment are proposed,and the structure is reviewed.The main technologies and key ideas of the collapse treatment are described through the use of water diversion and drainage,back pressure backfilling,bench excavation,"advance support""rigid support"and"flexible support".After the safe and effective collapse treatment,the monitoring data and operation effect are good,which proves the rationality and effectiveness of this measure.

关 键 词：有压引水隧洞 塌方 渗水 处理方案 

分 类 号：TV554[水利工程—水利水电工程]