摘要
基于等价采高的概率积分法模型理论,系统研究了建下压煤的可采性、开采方法和开采后地表移动变形动态预测。研究表明与完全垮落法覆岩形态相比,固体充填后只有断裂带和弯曲带,基于等价采高的概率积分理论能够修正完全垮落法覆岩移动参数,可以进行固体充填地表沉陷预测;对比了温家沟矿固体充填后的实测地表沉陷值和预测值,结果较吻合,说明等价采高的概率积分模型能较好进行固体充填地表沉陷预测,具有实用和可靠特点,现场应用取得了良好的技术经济效果。
Based on model theory of probability integral method of equivalent mining height,coal resources mineability under buildings,mining method and dynamic prediction of ground surface movement and deformation were systematically studied.The research showed that comparing with the overlying strata form of fully caving method,there were only fault zone and sagging zone after solid filling.Based on the probability integral principle of equivalent mining height,the overlying strata movement parameters of the fully caving method could be modified,and then ground surface subsidence prediction after solid filling could be carried out.The actual measurement value and prediction value of ground surface subsidence after solid filling in Wenjiagou Mine were compared and proved to be a good agreement,which indicated that the probability integral model of equivalent mining height could preferably predict the surface subsidence after solid filling,it was functional and reliable,and the field application achieved good technical and economic effects.
出处
《中国煤炭》
北大核心
2016年第6期63-66,共4页
China Coal
关键词
建筑物下压煤
固体充填开采
等价采高原理
开采沉陷
沉陷预测
coal resources under buildings
mining with solid filling
equivalent mining height principle
mining subsidence
subsidence prediction
