充填开采工作面“两带”高度计算及其验证
投稿时间:2020-02-28  修订日期:2020-05-13  点此下载全文
引用本文:
摘要点击次数: 27
全文下载次数: 0
作者单位E-mail
李立 山西汾西矿业(集团)有限责任公司双柳煤矿 200891721@qq.com 
基金项目:国家自然科学基金资助(51304118),项目名称:深部煤层大采高开采覆岩超冒时空效应与卸荷裂隙力学特征分析。
中文摘要:为研究充填开采“两带”高度计算方法,对充填开采的覆岩破坏机理进行了分析;研究提出基于关键层理论的充填开采“两带”高度判定方法;通过数值模拟揭示了充填开采工作面上覆岩层移动和破坏规律;结合常村煤矿CT101充填工作面的采矿地质条件,采用充填开采“两带”高度判定方法、经验公式、数值模拟、钻孔探测对其“两带”高度进行计算分析。研究结果表明:新方法计算结果与实测结果基本一致;采用基于等价采高的传统经验公式计算充填开采“两带”高度误差大;新方法的计算结果和实测结果最为接近,为充填工作面“两带”高度计算提供了方法。
中文关键词:充填开采  覆岩破坏  关键层  “两带”高度
 
“Two-zone” height calculation in solid backfill mining
Abstract:To study the computing method of “two-zone-” height in the mining with filling, analysed the breakage mechanism of roof strata under the different condition of mining with filling; It investigated and proposed decision procedure of “two-zone” height in the mining with filling based the key stratum theory; Through numerical simulation reveals the movement and destruction rule of overlying strata in work surface mining with filling; Considering the geological and mining conditions of Wugou Colliery, it used decision procedure of “two-zone” height in the mining with filling, empirical formula, numerical simulation, drillingSSdetection to analysis the “two zones” height . The results show that the calculated results are in agreement with the experimental results; Using tranditional empirical formula based equivalent mining thick to calculate “two-zone” height in the mining with filling has a large height deviation; The calculated result of the new method is closest to the measured resultTo providing a method for calculation of "two-zone" height in the filling surface.
keywords:mining with filling  strata failure  key stratum  “two-zone” height
  查看/发表评论  下载PDF阅读器
设备展厅
您是第7263678位访问者  备案许可证编号:京ICP备13036454号
版权所有:《中国矿业》杂志社有限公司
地  址: 北京市朝阳区安定门外小关东里10号院东小楼 邮编:100029 电话:010-68332570 88374940 E-mail: zgkyzzs@163.com