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Construction method of water inlet and outlet gate vertical shaft of water delivery tunnel of pumped storage power station
The invention discloses a construction method for a water inlet and outlet gate shaft of a water delivery tunnel of a pumped storage power station. The construction method comprises the steps that firstly, a water inlet and outlet connection section is excavated and supported; secondly, a gate vertical shaft is excavated, and a gate vertical shaft supporting structure is constructed; the construction process of the gate vertical shaft excavation and gate vertical shaft supporting structure comprises the steps that 201, a top vertical shaft section is excavated, and a top vertical shaft section support is constructed; 201, a top vertical shaft section is excavated, and a top vertical shaft section support is constructed; 203, a bottom connector section is excavated, and a bottom connector section support is constructed. The surrounding rock structure on the periphery of the bottom connector section which is not excavated can be sealed and supported in time, so that the surrounding rock structure on the periphery of the bottom connector section is not damaged, surrounding rock supporting stability is guaranteed, excavation forming of the bottom connector section can be guaranteed, the quality control difficulty of anchor cable supporting is reduced, and the construction efficiency is improved. And the construction efficiency of the middle transition section support and the bottom interface section support is improved.
本发明公开了一种抽水蓄能电站输水隧洞进出水口闸门竖井的施工方法，包括：步骤一、进出水口接通段的开挖与支护；步骤二、开挖闸门竖井，施工闸门竖井支护结构；闸门竖井的开挖与闸门竖井支护结构的施工过程为：步骤201、开挖顶部竖井段，施工顶部竖井段支护；步骤201、开挖顶部竖井段，施工顶部竖井段支护；步骤203、开挖底部接口段，施工底部接口段支护。本发明能够及时的封闭支护未开挖的底部接口段四周的围岩结构，使底部接口段四周的围岩结构不被破坏，保证围岩支护稳定，能够保证底部接口段的开挖成型，降低了锚索支护的质量控制难度，提高了中部过渡段支护和底部接口段支护的施工效率。
Construction method of water inlet and outlet gate vertical shaft of water delivery tunnel of pumped storage power station
The invention discloses a construction method for a water inlet and outlet gate shaft of a water delivery tunnel of a pumped storage power station. The construction method comprises the steps that firstly, a water inlet and outlet connection section is excavated and supported; secondly, a gate vertical shaft is excavated, and a gate vertical shaft supporting structure is constructed; the construction process of the gate vertical shaft excavation and gate vertical shaft supporting structure comprises the steps that 201, a top vertical shaft section is excavated, and a top vertical shaft section support is constructed; 201, a top vertical shaft section is excavated, and a top vertical shaft section support is constructed; 203, a bottom connector section is excavated, and a bottom connector section support is constructed. The surrounding rock structure on the periphery of the bottom connector section which is not excavated can be sealed and supported in time, so that the surrounding rock structure on the periphery of the bottom connector section is not damaged, surrounding rock supporting stability is guaranteed, excavation forming of the bottom connector section can be guaranteed, the quality control difficulty of anchor cable supporting is reduced, and the construction efficiency is improved. And the construction efficiency of the middle transition section support and the bottom interface section support is improved.
本发明公开了一种抽水蓄能电站输水隧洞进出水口闸门竖井的施工方法，包括：步骤一、进出水口接通段的开挖与支护；步骤二、开挖闸门竖井，施工闸门竖井支护结构；闸门竖井的开挖与闸门竖井支护结构的施工过程为：步骤201、开挖顶部竖井段，施工顶部竖井段支护；步骤201、开挖顶部竖井段，施工顶部竖井段支护；步骤203、开挖底部接口段，施工底部接口段支护。本发明能够及时的封闭支护未开挖的底部接口段四周的围岩结构，使底部接口段四周的围岩结构不被破坏，保证围岩支护稳定，能够保证底部接口段的开挖成型，降低了锚索支护的质量控制难度，提高了中部过渡段支护和底部接口段支护的施工效率。
Construction method of water inlet and outlet gate vertical shaft of water delivery tunnel of pumped storage power station
一种抽水蓄能电站输水隧洞进出水口闸门竖井的施工方法
GAO WENFU (author) / YANG YANG (author) / LIU YANG (author) / BI CHONGXIAO (author) / LI PEISONG (author) / LIU CHANGWEN (author) / SUN YIWEI (author) / TONG ZHANBEI (author)
2024-12-13
Patent
Electronic Resource
Chinese
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