摘要
山东新河矿业有限公司奥灰含水层地面水文长期观测孔保护煤柱压煤范围广,影响邻近煤炭资源开采。为了在不影响钻孔的情况下实现邻区工作面煤层安全开采,依据本矿井及邻近唐口煤矿煤层开采地表及上覆岩层移动规律,从轴向拉压、径向挤压和径向剪切3个力学角度,通过采后上覆岩层移动对钻孔套管的影响进行钻孔受损程度分析;同时,利用钻孔受损漏水造成的充水含水层水文地质条件变化,对钻孔不启封开采的可行性进行分析评价。研究结果显示,钻孔不启封开采不会导致钻孔水害事故,也不会改变3煤开采水文地质条件,最终实现了工作面安全开采。
The long-term hydrological observation hole of the Ordovician limestone aquifer in Shandong Xinhe Mining Co.,Ltd has a wide range of coal pillars,affecting the exploitation of adjacent coal resources.For this reason,referring to the movement law of overlying strata on the surface of this mine and its adjacent Tangkou coal mine,the damage degree of borehole was analyzed from the three mechanical angles,that is axial tension and compression,radial extrusion and radial shear.Combined with the changes of hydrogeological conditions such as water enrichment of main aquifers around the boreholes,the safety and feasibility of the mining without opening the borehole were analyzed and evaluated.The research results show that the boreholes without opening will not lead to borehole water accident,nor change the hydrogeological conditions of coal mining,and finally the safe mining is achieved.
作者
贾传伟
刘增平
田茂虎
JIA Chuanwei;LIU Zengping;TIAN Maohu(Shandong Xinhe Mining Co.Ltd.,Jining 272400,China;Zibo Mining Group Co.Ltd.,Zibo 255100,China)
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
2019年第S01期86-91,共6页
Coal Geology & Exploration
关键词
高压水文孔
不启封
岩层移动
受损分析
安全开采
山东新河煤矿
high pressure hydrologic borehole
without opening
strata movement
analysis of damage
safet mining
Xinhe coal mine in Shandong
作者简介
第一作者:贾传伟,1989年生,男,山东青州人,工程师,从事矿井水文地质与水害防治工作.E-mail:jchuanwei@163.com
