巴基斯坦卡洛特水电站软岩导流隧洞设计与施工

Design and construction of soft rock diversion tunnel of Karot Hydropower Station in Pakistan

巴基斯坦卡洛特水电站导流隧洞设计存在导流流量大、隧洞规模大、地质条件差、施工难度高等难点。根据开挖揭露的实际地质情况,结合监测数据和理论计算分析,通过导流隧洞设计和施工以及施工中动态设计调整分析,实现了隧洞安全稳定性和经济性的平衡。目前,卡洛特水电站导流隧洞已正常运行约1 a时间,相关经验可为其他类似导流隧洞工程提供参考和借鉴。

The design of the diversion tunnel of Karot Hydropower Station in Pakistan is difficult due to its large diversion flow and tunnel size,poor geological conditions and difficult construction.According to the actual geological conditions discovered by excavation,considering the monitoring data and theoretical calculation,the safety and stability of the tunnel and the cost are well balanced through the analysis of the design and construction and the dynamic design adjustment during the construction.The diversion tunnel of Karot Hydropower Station has been operated safely and stably for 1 year,which provides reference for other similar diversion projects.