导水陷落柱预注浆治理

Pregrouting Treatment of Water Conductivity Subsided Column

霍州煤电集团有限责任公司团柏煤矿10-310工作面开采太原组10#煤,距奥灰顶界面平均间距为36m,正常情况下不会发生突水,但在有导水构造存在的情况下,就有发生底板突水事故的可能。陷落柱作为垂直导水构造,可以使奥灰承压含水层与煤层之间发生水力联系,安全生产受到威胁,尤其是陷落柱滞后突水现象的出现,其危险程度则无法预测。本文阐述了导水陷落柱的滞后突水超前预防措施及其重要性。

The average distance from Ordovieian limestone interface being 36 m, 10- 310 face mining Taiyuan group 10# of Tuanbo Colliery, Huozhou Coal Electricity Group Co. , Ltd. , will not occur water inrush under normal circumstances, but under the circumstance of existing water conductivity structure, it may have occurred floor water inrush. As vertical water conductivity structure, subsided column can enable hydraulic connection to occur between Ordovician limestone confined aquifer and coal seam, results that safety production is threatened and the degree of danger of water inrush occurrence can not be predicted. The paper discusses on the water in- rush prevention measures and its importance of water conductivity subsided column.