Moving set‐up room theory of weakening the mining pressure caused by the backfilling body in solid backfilling mining,Energy Science & Engineering

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Moving set‐up room theory of weakening the mining pressure caused by the backfilling body in solid backfilling mining
Energy Science & Engineering ( IF 3.5 ) Pub Date : 2020-01-29 , DOI: 10.1002/ese3.559
Qiang Zhang _{1,

2} , Jixiong Zhang _{1,

2} , Yang Chen _{1,

2} , Jean Damascene Ntigurirwa _{1,

2} , Kangqi Xia _{1,

2}

Affiliation

The core of backfilling mining is to reduce the mining pressure in order to achieve precise control of strata position and status. Since disturbances and damages to the original rocks of the stope by set‐up room and backfilling working face are low, and due to the similar ground behavior mechanism, the “moving set‐up room” theory (short as MSUR [moving set‐up room] theory) is proposed to characterize the reduction of mining pressure caused by the backfilling body. The scientific connotation includes the qualitative characterization of the mining status, quantitative expression of the mining pressure weakening degree, and critical conditions while weakening the mining pressure caused by the backfilling body in the stope, as well as controlling the mining pressure in the stope based on the weakening effect. By combining with the analysis of the controlling features of backfilling mining pressure in the stope and the stress and displacement evolutions, the concept and characteristics of the MSUR theory of backfilling stopes were proposed. Simultaneously, the qualitative and quantitative scientific characterization methods of MSUR were investigated. Therefore, solutions to the critical conditions of the MSUR effect were proposed, and the control of mining pressure in the stope was designed based on the MSUR theory. This study provides references for precise control of strata position and status in backfilling mining.

中文翻译：

移动集散室理论在固体回填开采中减弱回填体引起的开采压力

回填采矿的核心是降低采矿压力，以实现对地层位置和状态的精确控制。由于设置室和回填工作面对采场原始岩石的扰动和破坏很低，并且由于类似的地面行为机理，“移动设置室”理论（简称MSUR [移动设置[室]理论）被提出来表征由回填体引起的采矿压力降低。科学内涵包括定性表征采煤状态，定量表示采压弱化程度，临界条件，同时弱化了采场回填体所引起的采压，以及基于采空区控制采场压力。减弱作用。结合对采场回采压力的控制特征及应力，位移演化的分析，提出了回采场MSUR理论的概念和特征。同时，研究了MSUR的定性和定量科学表征方法。因此，提出了解决MSUR影响的临界条件的方案，并根据MSUR理论设计了采场压力的控制方法。该研究为回填开采中地层位置和状态的精确控制提供了参考。研究了MSUR的定性和定量科学表征方法。因此，提出了解决MSUR影响的临界条件的方案，并根据MSUR理论设计了采场压力的控制方法。该研究为回填开采中地层位置和状态的精确控制提供了参考。研究了MSUR的定性和定量科学表征方法。因此，提出了解决MSUR影响的临界条件的方案，并根据MSUR理论设计了采场压力的控制方法。该研究为回填开采中地层位置和状态的精确控制提供了参考。

更新日期：2020-01-29

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