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小山水电站导流洞工程， 由于地质条件复杂， 在洞挖施工过程中， 曾出现多次塌方， 对于塌方段经过设计、监理、施工单位技术人员在施工现场认真细致分析研究， 提出了切实可行的开挖支护以及混凝土衬砌施工技术措施， 成功地完成塌方段的处理工作， 确保了小山水电站按期导截流， 并经受了导流洞的过水考验。
The diversion tunnel project of Xiaoshan Hydropower Station, due to the complex geological conditions, has experienced many landslides in the process of tunnel excavation. After the design and supervision of landslide sections, the technicians of construction units have carefully analyzed and studied the construction site carefully and put forward practical and feasible measures Excavation, support and concrete lining construction techniques and measures, successful completion of the collapse of the section of the work to ensure that the Xiaoshan Hydropower Station on schedule closure of the river, and subjected to the diversion tunnel water test.