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新集二矿风井井筒直径 6 .0m ,井筒中风速为 8.5m/s,沼气浓度 0 .3% ,淋水量 5 .5m3/h。在矿井不停产条件下 ,采用非明火作业 ,在该井筒中安装 1趟瓦斯抽放管路。施工中采取增加托管梁层数、加大托架与井壁锚杆螺栓联接孔尺寸、使用自行设计的可折叠式吊盘等措施 ,加上严密的施工组积和监督 ,用 1 0d时间便完成了井筒中管路的安装 ,工程质量全优 ,安全无事故 ,为类似条件下的井筒装备安装施工积累了经验
The new set of two mine shaft diameter of mine shaft 6. 0m, the wellbore wind speed is 8.5m / s, biogas concentration 0.3%, the amount of water 5 .5m3 / h. In the mine without stopping production conditions, the use of non-open flame operation, install a gas drainage pipe in the wellbore. In the construction, the measures such as increasing the number of trusteeship girders and increasing the size of bolting holes between the bracket and the shaft wall, using the self-designed collapsible hanging plate and other measures, together with strict construction compilation and supervision, shall be carried out within 10 days The completion of the wellbore pipeline installation, the whole project excellent quality, safety and accident-free, for similar conditions, installation and construction of wellbore equipment has accumulated experience