CAJ | 학술논문

纳林河煤矿2号副立井净直径10.5m ，最大掘进直径15.5m ，井深583.95m ，冻结深度521m。井筒主冻结孔采用缓凝水泥浆固管封水，封堵冻结孔竖向导水通道，可避免冻结壁解冻后，冻结孔导水，威胁矿井安全。井筒掘进时，采用双联伞形钻架凿岩，成功地解决了大直径井筒全断面一次钻眼爆破难题，凿岩效率提高了40％，缩短了循环时间，加快了施工进度，掘砌外壁月成井有3个月达到或超过100m。另外，冬季采暖，保证工程质量和顺利施工，也是一项成功经验。
납림하매광2호부립정정직경10.5m ，최대굴진직경15.5m ，정심583.95m ，동결심도521m。정통주동결공채용완응수니장고관봉수，봉도동결공수향도수통도，가피면동결벽해동후，동결공도수，위협광정안전。정통굴진시，채용쌍련산형찬가착암，성공지해결료대직경정통전단면일차찬안폭파난제，착암효솔제고료40％，축단료순배시간，가쾌료시공진도，굴체외벽월성정유3개월체도혹초과100m。령외，동계채난，보증공정질량화순리시공，야시일항성공경험。
No.2 mine auxiliary shaft of Nalinhe Mine had a net diameter of 10.5m ,a max excavation di-ameter of 15.5m ,a shaft depth of 583.95m and a freezing depth of 521m.In the main freezing borehole of the mine shaft ,a retarded cement grout was applied to the consolidation of the pipe and the water sealing ,to the sealing of the vertical water flow channel in the freezing borehole in order to eliminate the water flow of the freezing borehole and the danger to the mine safety after the thawing of the freezing wall of the mine shaft.During the mine shaft sinking period ,a dual umbrella drilling frame was applied to the rock drilling.The drilling frame successfully solved a difficult problem of a full sec-tion one drilling and blasting for the large diameter shaft and the rock drilling efficiency was improved by 40% .A circulation time was reduced ,the construction schedule was speeded up and there were three months that a month excavation and lining of the mine shaft was reached or over 100m.In addi-tion ,a heat supply in the winter season could ensure the project quality and a successful construction and would be one successful experience.