建井技术
建井技術
건정기술
2014年
6期
4-7
,共4页
砾石层%冻结窗口%地下水流速%纵向测温%工作面注浆
礫石層%凍結窗口%地下水流速%縱嚮測溫%工作麵註漿
력석층%동결창구%지하수류속%종향측온%공작면주장
gravel bed%freezing window%underground water flow velocity%longitudinal temperature measuring%grouting at working face
伊犁1号井副立井采用冻结法施工，冻结深度430m ，冲积层深159.05m ，主要为砾石层。井筒掘进到89.6 m深时，掘进工作面出现异常涌水；原因是地下水流速大，冻结壁出现窗口。经研究，决定先采用冻结孔纵向测温技术来准确判定冻结窗口位置；然后采用工作面注黏土水泥浆技术，减缓流速，促使窗口闭合。方案实施后，取得预期效果，井筒顺利通过该段地层。
伊犛1號井副立井採用凍結法施工，凍結深度430m ，遲積層深159.05m ，主要為礫石層。井筒掘進到89.6 m深時，掘進工作麵齣現異常湧水；原因是地下水流速大，凍結壁齣現窗口。經研究，決定先採用凍結孔縱嚮測溫技術來準確判定凍結窗口位置；然後採用工作麵註黏土水泥漿技術，減緩流速，促使窗口閉閤。方案實施後，取得預期效果，井筒順利通過該段地層。
이리1호정부립정채용동결법시공，동결심도430m ，충적층심159.05m ，주요위력석층。정통굴진도89.6 m심시，굴진공작면출현이상용수；원인시지하수류속대，동결벽출현창구。경연구，결정선채용동결공종향측온기술래준학판정동결창구위치；연후채용공작면주점토수니장기술，감완류속，촉사창구폐합。방안실시후，취득예기효과，정통순리통과해단지층。
A mine auxiliary shaft of Yili No.1 Mine was constructed with a ground freezing method ,the freezing depth was 430m ,a depth of the alluvium was 159.05m and a gravel bed was a main stra‐tum.When the mine shaft was excavated at a depth of 89.6m ,there was abnormal mine water inflow occurred in the mine shaft sinking face. The cause was that the underground water flow velocity was high and there was a window occurred in the freezing wall. With a study ,a longitudinal temperature measuring technology with a freezing borehole was applied to accurately adjudge the location of the freezing window. Then a clay and cement grouting technology at the sinking face was applied to reduce the water flow velocity and make the window closed.After the plan conducted ,an estimated effect was obtained and the mine shaft successfully passed through the stratum.
