平禹一矿立井深厚表土层普通法施工技术研究

本文经过钻孔资料分析和周边矿井的调查研究、判断对比,认为虽然平禹一矿立井掘进时表土层深厚,含水层、含砂层既多又厚,涌水量大,但不会形成流砂。只要采取针对性措施如采用外壁套挂、短段掘砌、快挖快进混合作业,采用堵、降、导、排、桩等联合治水,加强支护等完全可以采用普通法施工。本文详细阐述了平禹一矿立井施工技术,为以后类似条件的井筒施工提供了先进的施工经验,有着较好的社会经济效益和推广价值。

Study on the Common Construction Technique for Shaft Sinking in Deep Surface Soil Layer of the Mine No.1 of Pingyu Coal-electricity Company

Through drill data analysis as well as the investigation and comparison on the peripheral mines,the author of the thesis thinks that the surface soil layer is deep,the aquifer and sand layer are many as well as thick,the water inflow is much during the shaft sinking excavation process of mine No.1 of Pingyu Coal-electricity Company,but flowing sand will not come into being.Common construction technique can be applied as long as some pertinent measures like mixed working of ektexine smocking,short segment ex...