Overlying strata movement of recovering standing pillars with solid backfilling by physical simulation

An; Baifu; Miao; Xiexing; Zhang; Jixiong; Ju; Feng; Zhou; Nan

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Overlying strata movement of recovering standing pillars with solid backfilling by physical simulation

机译：实测回填实心回填上覆岩层运动的物理模拟

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摘要

To analyze the overlying strata movement law of recovering room mining standing pillars with solid backfilling.Physical simulation experiments with sponge and wood as the backfilling simulation material were tested.The results show that:(i) The covering-rock mechanics of the overly strata comes from "two-arch structures + hinged girder + bend beam" to "backfilling material + hinged girder + bent beam" by increasing the fill ratio from 0%to 85%,the beginning of overlying strata movement appears later and the total duration of subsidence velocity increased from zero to the highest value increases.The trend of "single polarization" of the subsidence velocity curves becomes noticeable and the velocity variation trend becomes stable,(ii) The equiponderate aeolian sand was added to improve the anti-pressure ability of the loess,and the corresponding ground processing & transportation system was designed.

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《矿业科学技术学报：英文版》 |2016年第002期|P.301-307|共7页
作者
An; Baifu; Miao; Xiexing; Zhang; Jixiong; Ju; Feng; Zhou; Nan;
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作者单位

[1]School of Mines, China University of Mining ＆ Technology, Xuzhou 221116, China;

[2]State Key Laboratory of Geomechanics and Deep Underground Engineering, China University of Mining ＆ Technology, Xuzhou 221116, China;

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收录信息中国科学引文数据库(CSCD);
原文格式 PDF
正文语种 CHI
中图分类柱;
关键词
物理模拟实验; 充填开采; 回收站; 岩层移动; 固体; 柱子; 回填材料; 覆岩运动;

机译：物理模拟实验;充填开采;回收站;岩层移动;固体;柱子;回填材料;覆岩运动;

Overlying strata movement of recovering standing pillars with solid backfilling by physical simulation

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