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某施工队在山西太原某工地地基处理过程中,钻机钻杆断裂,不慎掉入φ800孔中.此钻杆为光滑圆柱杆,直径为φ150mm,钻杆上没有任何的凹槽和凸缘,掉入孔中的钻孔长19m,自重2t,钻杆上部距地面18m深,钻杆下部距地面37m深,孔中充满泥浆,人无法下去.事故发生后,施工队自己组织力量打捞了10天,没有打捞起来,而且在10天过程中,泥浆已经沉淀,经测量,19m长的钻杆只剩下6m在水中,下部
A certain construction team drilled the drill pipe of a rig in Taiyuan, Shanxi, during the foundation treatment of a construction site. It accidentally fell into the φ800 hole. The drill pipe is a smooth cylindrical bar with a diameter of φ150mm. There is no groove or flange on the drill pipe. The drill hole dropped into the hole is 19m long and has a weight of 2t. The upper part of the drill pipe is 18m deep from the ground. The lower part of the drill pipe is 37m deep from the ground. The hole is full of mud and people cannot go. After the accident, the construction team organized its own efforts to salvage 10 Day, no salvage, and in the course of 10 days, the mud has precipitated, and after measuring, only 19m of drill pipe remains 6m in the water, the lower part