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随着建井技术的不断发展,在凿井中越来越多的使用多层吊盘和大抓岩机。这样,吊盘的结构钢梁型号也不断加大。而连接上下层盘的立柱与盘的连接方法,仍按《煤矿凿井图册》中的螺栓连接法连接,螺栓型号不好加大,每根立柱用6个M18螺栓,其连接点的强度显得弱。我处在王家营副井凿井期间所使用的双层吊盘,就是采用《煤矿凿井图册》中的螺栓连接方法(图1)。使用一
With the continuous development of well construction technology, more and more multi-layer hangers and big grabs are used in sinking wells. In this way, the structural steel girder models also continue to increase. The connection between the upper and lower plate column and disk connection method, still according to “mine shaft sink atlas” in the bolt connection method, the bolt model is not good to increase, each column with 6 M18 bolts, the connection point strength It looks weak. The double-deck crane that I used during the Wangjiaying auxiliary shaft sinking was the bolt connection method in the Atlas of Coal Mine Drilling (Figure 1). Use one