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222坚井是我局北部矿山的一个矿石提升井。北部矿山开采出来的矿石都要通过它运到选厂进行选别处理,因此它是我局关系北部矿山能否按期投入生产的关键工程。该井设计深度为300公尺,井筒荒直径为6.1公尺,净直径为5.5公尺,工程量不小,施工也较复杂。担负这项工程施工任务的坚井队全体职工采取了准备、边安装、边施工的革命措施,提前二个月开
Well 222 is a mine shaft in the northern mine. The ore mined from the northern mines is transported to the beneficiation plant for sorting by it. Therefore, it is a key project that our bureau is responsible for whether the northern mines can be put into production on time. The well is designed to a depth of 300 meters, with a borehole diameter of 6.1 meters and a net diameter of 5.5 meters. The project volume is not small and the construction is complicated. All the staff and workers of the shaft crew responsible for the construction of this project have taken preparation, installation and construction of revolutionary measures two months in advance