摘要
通过对焦煤集团九里山矿14101工作面底板突水经过的研究,认为工作面底板突水的水源是是L8灰岩水,其直接补给水源为L2灰岩水,间接补给水源为O2灰岩水;导水通道为底板采动裂隙带。采取了在工作面打水闸墙,利用钻孔对采空区灌注骨料,增加水流阻力,切断导水通道,封堵水源,加固隔水层的地面注浆和井下工程相结合的综合治水方案。通过观察,工作面中间巷无水流出,突水前后水位变化明显,在较短时间内获得了堵水成功。取得了显著的经济效益和社会效益,为矿井突水治理积累了经验。
Through a study on No.14101 working face floor water bursting process in Jiulishan Coalmine, Jiaozuo Coal Industrial Group, figured out that the water bursting source is Carboniferous L8 limestone water, direct recharging source is Carboniferous L2 limestone water, indirect recharging source is Ordovician 02 limestone water, water conducting channel is coal floor mining-induced fissure zone. For governing working face water bursting effectively, a comprehensive scheme was adopted： build a working face waterproof dam, through borehole pour aggregate into gob area to increase water flow resistance, use surface grouting to cutoff water conducting channel, plugging-up water source, and reinforcing confining bed combined with underground engineerings. After the governing, the working face has observed and found that no water flow in the interdrive, water levels before and after the water bursting changed obviously, thus the governing has succeeded in a rather short time.
出处
《中国煤炭地质》
2008年第8期35-38,共4页
Coal Geology of China
关键词
底板突水
注浆
14101工作面
九里山矿
floor water bursting
grouting
No.14101 working face
Jiulishan coalmine
