摘要
为充分利用受龙洞湾煤矿太平寺水库坝体压覆资源,根据煤层赋存、地层含隔水性及地表水体特征,采用Matlab预测开采地表变形值;并采用矸石条带和错柱充填法控制顶板位移,保证了水库坝体安全,有效利用坝体压覆资源,改变了传统的、资源回收率较低的房柱式采煤法,实现了无煤柱开采,水体下采煤实际回采率达到了90.5%,为矿井安全生产、资源有效利用和环境保护提供了可靠保障。
In order to make full use of the dam body covering resources of Taipingsi Reservoir in Longdongwan Mine,Matlab was used to predict the deformation value of surface deformation according to the occurrence of coal seam,water-separation and surface water body characteristics, and it was controlled by sapphire strip and staggered filling method. The displacement of the roof ensured the safety of the dam body, effectively utilized the dam body crushing resources, changed the traditional room-column mining method with low resource recovery rate, and realized the coal-free column mining and the actual recovery rate of coal mining under water. It reached 90.5% and provided reliable guarantee for mine safety production, effective use of resources and environmental protection.
作者
徐志勇
Xu Zhiyong(Sichuan Coal Design and Research Institute, Chengdu 610095, China)
出处
《煤炭与化工》
CAS
2019年第9期6-8,15,共4页
Coal and Chemical Industry
基金
国家自然科学基金面上基金资助项目（51474209）
国家自然科学基金青年科学基金资助项目（51204166）
江苏省高校优势学科建设工程资助项目（PAPD）
关键词
水库坝体
无煤柱开采
错柱充填
地面变形
reservoir dam
no coal pillar mining
staggered column filling
ground deformation
