摘要
对榆树湾煤矿“三带”的发展进行了数值模拟,模拟结果表明,在厚土层覆盖浅埋深煤层开采中,由于覆盖层基岩和土层厚度的增加,工作面的来压没有表现出厚松散层浅埋煤层覆岩全厚度整体切落的“三带合一”现象,而是出现与一般开采下相同的“三带”。通过对基岩“三带”发展规律的分析,导水裂隙不会在隔水层中贯通,采用5 m上分层开采能达到保水开采的目的。
The paper had a numerical simulation on the development of the overburden three zones in Yushuwan Mine.The simulation results showed that during the mining operation with thick overburden and low depth,due to the increasing of the base rock thickness and the soil layer thickness in overburden,the ground pressure of the coal mining face did not show the three zones combined one phenomenon in the total thickness of the overburden on the seam.From the analysis on the three zones development law of the base roc...
出处
《煤炭科学技术》
CAS
北大核心
2007年第2期93-96,共4页
Coal Science and Technology
基金
教育部博士学科点基金项目资助(20050704003)
关键词
浅埋煤层
保水开采
覆岩“三带”
数值模拟
low depth seam
mining with water keeping
overburden three zones
numerical simulation
