GJMZ法在后河水库灌浆与排水孔方位优选中的应用

APPLICATION OF GJMZ METHOD TO PREFERENCE OF ORIENTATION FOR GROUTING AND DRAINAGE IN THE HOUHE RESERVOIR

后河水库是为黄河小浪底水利枢纽垣曲县淹没区移民安置创造条件的补偿工程。由于坝基及两岸坝肩岩体内构造断裂和风化卸荷作用 ,致使坝基和坝肩存在有渗漏问题。本文在充分分析后河水库已有资料的基础上 ,依据GJMZ法对后河水库灌浆与排水工程中的斜孔方位进行了计算和优选 ,其成果可为设计部门提供科学依据 ,具有较大的研究意义和实用价值。

The Houhe Reservoir is a water project compensating for housing immigrants from the Xiaolangdi Hydro-junction project in Yuanqu county. Fault structure and weathering unload, caused leakage at the dam basement and shoulders of both banks. A GJMZ method is used to calculate and prefer the orientation of inclined boreholes for grouting and drainage after analyzing the data. The result provides a scientific basis for design department.