构皮滩拱坝接缝灌浆串并灌工艺

接缝灌区封闭性是影响接缝灌浆质量的重要因素，多区串通情况下的灌浆施工更是具有工艺复杂、难度大、风险高的特点。本文结合构皮滩拱坝工程实践，对多区串通情况下接缝灌浆的施工难点进行了分析，并对一些实践证明行之有效的施工原则、控制指标确定原则和施工工艺流程进行了总结和探讨

Merging grouting technology for joint grouting of Goupitan Arch Dam

The closure of the gmuting zone is an important factor to impact the quality of the joint grouting; especially, the con- struction technology of the multi-zones merging gmuting is rather complicated with the characteristics of large difficulty and high risk. In combination with the engineering practice fmm the construction of Goupitan Arch Dam, the difficulties of the joint grou- ting under the condition of the multi-zones merging gmuting are analyzed herein, and then some feasible and effective construction principles, determination principles for the contml indexes and the pmcess of the construction technologies demonstrated in the practice are discussed and summarized as well.