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在煤矿建井施工过程中,建井凿井施工前必须做好一些施工准备工作,以保障建井凿井施工工作的顺利、安全、如期完成。本文主要阐述了特殊施工条件下煤矿建井凿井工作中采用冻结法凿井的施工准备、采用淹水沉井法凿井的施工准备、采用帷幕法凿井的施工准备、采用钻井法凿井的施工准备、地面预注浆的施工准备和冬期和雨期凿井的施工准备等技术问题。
In the process of coal mine construction, some preparation work must be done before the construction of shaft drilling and shaft sinking so as to ensure the smooth and safe construction of the well shaft and shaft sinking and completion on schedule. This article mainly elaborates the construction preparation of freezing shaft sinking in coal mine construction work under special construction conditions, the construction preparation of sinking sinking method by using flooding sinking method, the construction preparation of sinking well by curtain method, the drilling method of sinking well Construction preparation, preparatory preparation of ground pre-grouting and construction preparation for sinking during winter and rainy days.