埋藏式调压井竖井井筒开挖施工技术探讨

Discussion on construction technology of burial surge tank shaft wellbole excavation

引水式水电站有压引水管道前端的调压井竖井大多数体型庞大,荷载及边界条件都较为复杂。本文对埋藏式调压井竖井井筒的开挖施工技术进行了探讨,在保证安全和控制成本的情况下,选择合适的施工方法,达到工程的进度、质量目标。

Surge tank shafts on the front end of pressure water diversion pipelines in water diversion hydropower station are mostly characterized by huge size and more complicated load and boundary conditions.In the paper,the construction technology of burial surge tank shaft wellbole excavation is discussed.Suitable construction methods are selected under the conditions of ensuring safety and controlling cost,thereby satisfying construction progress and quality objectives.