摘要
为了探讨鲍店煤矿深厚松散层下浅部采区首采工作面垮落带和导水断裂带(即"两带")高度发育特征,在某采区首采工作面所在区域地质、水文地质及开采条件综合分析基础上建立了4种不同基岩高度的工程地质模型,运用FLAC^(3D)软件模拟了在其它条件相同情况下仅考虑不同基岩高度对"两带"高度的影响。通过塑性区对比分析,获得了重复采动没有引起"两带"高度的增大,但影响程度明显增加,发现"两带"高度均与基岩高度呈较好的正相关变化关系。
In order to explore the high development characteristics of caving zone and water flowing fractured zone (that is, the "two zones") in the first mining face of the shallow mining area under the deep loose layer of Baodian Coal Mine, based on the comprehensive analysis of the regional geology, hydrogeology and mining conditions of the first mining face in a mining area, four engineering geological models with different bedrock heights were established, and FLAC^3D software was used to simulate the influence of only considering different bedrock heights on the height of the two zones under the same conditions. Through comparative analysis of the plastic zone, it is found that repeated mining does not increase the height of the two zones, but obviously increases the degree of influence.
作者
武宇亮
于宗仁
闫增会
朱术云
WU Yuliang;YU Zongren;YAN Zenghui;ZHU Shuyun(Baodian Coal Mine, Yanzhou Coal Mining Company Limited, Zoueheng 273513, China;School of Resources and Geosciences,China University of Mining and Technology, Xuzhou 221116, China)
出处
《煤矿安全》
CAS
北大核心
2019年第5期199-203,共5页
Safety in Coal Mines
基金
国家自然科学基金资助项目(41741020)
关键词
薄基岩
厚松散层
不同基岩高度
两带
抑制作用
thin bedrock
thick alluvium
different bedrock heights
two zones
inhibiting effect
