针孔法高压灌浆裂缝补强施工技术

Construction technology of high-pressure grouting reinforcement of cracks by pinhole method

通过对云南富广高速公路银厂连拱隧道针孔法高压灌浆裂缝补强工艺的过程分析,从施工原理、材料选择和工艺流程等方面进行了总结,对以后类似的裂缝处理提供了可供参考的施工技术。

Combined with practical work of Yinchang double-arch tunnel in Ytmnan Fuguang expressway the construction process of high-pressure grouting reinforcement of cracks by pinhole method is analyzed. In this paper, from construction principle, material selection, technological process and other aspects summary is made in order to provide references for similar works in the future.