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三十年来,我国立井箕斗装载峒室结构设计的主要特征是:装载峒室水平截面为矩形;径向跨度大于井筒直径;上部平顶为工字钢梁并浇灌混凝土。这种结构强度低,材耗高、施工复杂,在围岩破碎或含水量较大时,常给施工造成困难。一些平顶峒室也常因漏水时难以注浆封堵而严重影响机械的正常使用和维修。1976年初,我处在大屯矿主井施工到箕斗装载峒室时,根据峒室部位围岩(砂岩页岩互层)层、节理均发育的特点以及施工队伍的状况(新成立、新工人多),选择了箕斗装载峒室与井筒自上而下同时施工的施工方案。同时,为创造施工的安全条件,我们
Over the past three decades, the main features of the structural design of a vertical shaft skip in the country have been that the horizontal cross section of the load chamber is rectangular, the radial span is greater than the diameter of the wellbore, and the upper flat roof is made of I-beam and sprinkled with concrete. This kind of structure has low strength, high material consumption and complex construction. When the surrounding rock is broken or the water content is relatively large, construction often causes difficulties. Some Pingdingshan room is also often difficult to seal grouting due to leakage and seriously affect the normal use and maintenance of machinery. At the beginning of 1976, when I was working at the main well of Datun mine to the skip loading chamber, according to the characteristics of the joints and the construction teams based on the surrounding rock (interbed of sandstone and shale) Workers and more), chose skip loading room and wellbore construction program from top to bottom at the same time construction. At the same time, to create the safety conditions of construction, we