缅甸太平江二级水电站I调压井施工技术

缅甸太平江二级水电站调压井地质结构复杂：全一强风化岩层厚，裂隙发育，断层破碎带宽、大、多、倾角大，地下水丰富；调压井深，断面大。采用传统的施工方案很难保证施工安全和合同工期目标的实现，因此采用多项新技术进行施工，解决了调压井开挖、一期支护和混凝土施工等多项工程施工难题。为今后类似工程的施工提供了可借鉴和具有参考价值的施工经验。

Construction Technology of Surge Shaft for Dapein-II Hydropower Station in Myanmar

The surge shaft of Dapein-II hydropower station has great depth, big section and complex geological struc- tures, including thick completely - strongly weathered rock layer, developed fractures, many wide and large fault fracture zones of large dip angle, and abundant underground water etc. Many new construction technologiesare are adopted in solving the surge shaft excavation, first-stage support and concrete construction problems, because it is difficult to ensure the construction safety and contracted time schedule targets by adopting the traditional construction scheme. These new technologies can be well referenced by similar projects in future.