充填开采的协作支撑系统及其力学特征

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摘要针对“三下”煤炭充填开采引起的岩层移动与控制问题，根据充填开采特点，重点考虑充填体、煤柱和承重岩层的共同协调作用，提出“充填体+煤柱+承重岩层”协作支撑系统这一概念。运用岩石力学、围岩控制原理及其相关理论分别分析充填体的支护作用机制、煤柱的支撑条件、协作支撑系统的力学作用过程及稳定条件，研究结果表明：充填体的支护作用体现在对煤柱的侧向加固和对承重岩层的竖向支撑；充填体对煤柱的侧向应力应满足一定条件才能保证煤柱对上覆岩层产生较大的支撑力；“充填体+煤柱+承重岩层”协作支撑系统的力学作用过程分别经历了上覆岩层的加速下沉、加速或匀速下沉、减速下沉、平稳这4个主要阶段，分析得到“充填体+煤柱+承重岩层”协作支撑系统的稳定条件，并发现充填体的压实度和充填率越大，对形成和提高“充填体+煤柱+承重岩层”协作控制体系的整体性、改善受力环境就越有利，最终能最大限度地控制岩层移动及地表沉降。最后，将“充填体+煤柱+承重岩层”协作支撑系统理论应用于周源山煤矿的“三下”充填开采当中，结果表明，在进行充填设计时，至少应将充填体的压实度Dr提高到0.8以上，充填率Ff控制在90%以上，才能将地表沉降控制到最小值，该结果与数值计算结果较为接近。

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	余伟健1
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	冯涛1
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	李石林1
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关键词 ：采矿工程, 充填开采, 煤柱, 岩层控制, 协作支撑系统

Abstract：Aiming at subject of strata movement and control caused by the mining with filling under buildings，railways and water-bodies(three-underground)，achieving together action of backfilling，coal pillar and roof load-bearing rock stratum was emphasized，and the conception of coordination support systems is put forward. Rock mechanics，strata control principle and others correlation theory are applied to analyze the supporting mechanism of backfilling，the supporting conditions of coal pillar and the process of mechanics action and the stability condition of the coordination support systems. Research shows that the supporting mechanism of backfilling act as the horizontal reinforce action at coal pillar and the vertical supporting action at roof load-bearing rock stratum；the horizontal reinforce action should meet the controlled condition for the purpose of greater holding power which coal pillar effect on overburden；The mechanics action of the coordination support systems with backfilling，coal pillar and roof load-bearing rock stratum experience four main stages including the accelerated subside of overburden，uniform speed subside，decelerated subside and steady in proper order. Moreover，it is found that the degree of compaction(Dr) and the packing fraction(Ff) bigger，these have more advantageous to integrity and bearing strength environment of the coordination support systems，and strata movement and ground subsidence can control as much as possible. At last，the coordination support systems theory is applied in the three-underground mining with filling of Zhouyuanshan mine. In order to reduce ground subsidence as much as possible，analytic result indicated that the degree of compaction(Dr) of backfilling raise to above 0.8，and the packing fraction(Ff) control above 90%.

Key words： mining engineering mining with filling coal pillar strata control coordination support systems

引用本文:

余伟健1，2，冯涛1，2，王卫军1，2，李石林1，2. 充填开采的协作支撑系统及其力学特征[J]. 岩石力学与工程学报, 2012, 31(S1): 2803-2813.
YU Weijian1，2，FENG Tao1，2，WANG Weijun1，2，LI Shilin1，2. COORDINATION SUPPORT SYSTEMS IN MINING WITH FILLING AND MECHANICAL BEHAVIOR. , 2012, 31(S1): 2803-2813.

链接本文:

https://rockmech.whrsm.ac.cn/CN/Y2012/V31/IS1/2803

[1] 缪协兴，钱鸣高. 中国煤炭资源绿色开采研究现状与展望[J]. 采矿与安全工程学报，2009，26(1)：1–14.(MIAO Xiexing，QIAN Minggao. Research on green mining of coal resources in China：current status and future prospects[J]. Journal of Mining and Safety Engineering，2009，26(1)：1–14.(in Chinese))

[2] 张吉雄，缪协兴，茅献彪，等. 建筑物下条带开采煤柱矸石置换开采的研究[J]. 岩石力学与工程学报，2007，26(增1)：2 687–2 693. (ZHANG Jixiong，MIAO Xiexing，MAO Xianbiao，et al. Research on waste substitution extraction of strip extraction coal-pillar mining[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.1)：2 687–2 693.(in Chinese))

[3] SIRIWARDANE HEMA J，KAMAN R S S，ZIEMKIEWICZ PAUL F. Use of waste materials for control of acid mine drainage and subsidence[J]. Journal of Environmental Engineering，2003，129(10)：910–915.

[4] 刘同有，蔡嗣经. 国内外膏体充填技术的应用与研究现状[J]. 中国矿业，1998，7(5)：1–4.(LIU Tongyou，CAI Sijing. Status quo of application and research of paste fill technology in China and abroad[J]. China Mining Magazine，1998，7(5)：1–4.(in Chinese))

[5] 周华强，侯朝炯，易宏伟. 国内外高水巷帮充填技术的研究与应用[J]. 矿山压力与顶板管理，1991，8(4)：2–6.(ZHOU Huaqiang，HOU Chaojiong，YI Hongwei. Research and application of the roadside backfilling technique with high water content materials in China and abroad[J]. Ground Pressure and Strata Control，1991，8(4)：2–6.(in Chinese))

[6] 缪协兴，张吉雄，郭广礼. 综合机械化固体充填采煤方法与技术研究[J]. 煤炭学报，2010，35(1)：1–6.(MIAO Xiexing，ZHANG Jixiong，GUO Guangli. Study of waste-filling method and technology in fully-mechanized coal mining[J]. Journal of China Coal Society，2010，35(1)：1–6.(in Chinese))

[7] 杨金维，余伟健，高谦. 金川二矿机械化盘区充填采矿方法优化及应用[J]. 矿业工程研究，2010，25(3)：11–15.(YANG Jinwei，YU Weijian，GAO Qian. Optimization and practice of mechanized panel cutting and filing mining method in No.2 mine district，Jinchuan mine[J]. Mineral Engineering Research，2010，25(3)：11–15.(in Chinese))

[8] 于学馥，刘同有. 金川的充填机制与采矿理论[C]// 中国岩石力学与工程学会第四次学术大会论文集. [S.l.]：[s.n.]，1996：366–370.(YU Xuefu，LIU Tongyou. The filling mechanism and mining theory in Jinchuan[C]// The Fourth Academic Meeting Symposium，Chinese Society for Rock Mechanics and Engineering. [S.l.]：[s.n.]，1996：366–370.(in Chinese))

[9] 谢文兵，史振凡，陈晓祥，等. 部分充填开采围岩活动规律分析[J]. 中国矿业大学学报，2004，33(2)：163–166.(XIE Wenbing，SHI Zhenfan，CHEN Xiaoxiang，et al. Analysis of surrounding rock activities in partial backfill mining[J]. Journal of China University of Mining and Technology，2004，33(2)：163–166.(in Chinese))

[10] 刘长友，杨培举，侯朝炯，等. 充填开采时上覆岩层的活动规律和稳定性分析[J]. 中国矿业大学学报，2004，33(2)：166–169.(LIU Changyou，YANG Peiju，HOU Chaojiong，et al. Movement law and stability analysis of overlaying strata under the condition of mining with filling[J]. Journal of China University of Mining and Technology，2004，33(2)：166–169.(in Chinese))

[11] 孙晓光，周华强，王光伟. 固体废物膏体充填岩层控制的数值模拟研究[J]. 采矿与安全工程学报，2007，24(1)：117–126.(SUN Xiaoguang，ZHOU Huaqiang，WANG Guangwei. Digital simulation of strata control by solid waste paste-like body for backfilling[J]. Journal of Mining and Safety Engineering，2007，24(1)：117–126.(in Chinese))

[12] 马立强，张东升，陈涛，等. 综放巷内充填原位沿空留巷充填体支护阻力研究[J]. 岩石力学与工程学报，2007，26(3)：544–550.(MA Liqiang，ZHANG Dongsheng，CHEN Tao，et al. Study on packing body supporting resistance of enter-in packing for in-situ gob-side entry retaining in fully-mechanized top-coal caving mining face[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(3)：544–550.(in Chinese))

[13] 瞿群迪，姚强岭，李学华. 充填开采控制地表沉陷的空隙量守恒理论及应用研究[J]. 湖南科技大学学报：自然科学版，2010，25(1)：8–12.(QU Qundi，YAO Qiangling，LI Xuehua. Research on theory of space conversation for subsidence control in backfilling mining and its application[J]. Journal of Hunan University of Science and Technology：Natural Science，2010，25(1)：8–12.(in Chinese))

[14] 余伟健，王卫军. 矸石充填整体置换“三下”煤柱引起的岩层移动与二次稳定理论[J]. 岩石力学与工程学报，2011，30(1)：105–112.(YU Weijian，WANG Weijun. Strata movement induced by coal-pillar under three circumstances exchanged by gangue backfill and quadratic stability law[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(1)：105–112.(in Chinese))

[15] 王金庄，邢安仕，吴立新. 矿山开采沉陷及其灾害防治[M]. 北京：煤炭工业出版社，1995：128–130.(WANG Jinzhuang，XING Anshi，WU Lixin. Mining subsidence and its disaster prevention[M]. Beijing：China Coal Industry Publishing House，1995：128–130.(in Chinese))

[16] 余伟健，王卫军. 不同压实矸石充填体置换“三下”煤柱的岩层移动规律[J]. 力学与实践，2011，33(2)：39–45.(YU Weijian，WANG Weijun. Strata movement where coal-pillar under water，building or railway is replaced by gangue backfills of different compactness[J]. Mechanics in Engineering，2011，33(2)：39–45.(in Chinese))