煤岩体应力动态监测系统开发及应用

doi:10.13722/j.cnki.jrme.2017.0175

摘要
图/表
参考文献(23)
相关文章 (15)

全文: PDF (522 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要

煤岩体应力是矿井支护设计、矿压分析、冲击地压等煤岩动力灾害预测与防治的重要依据。为了定向测试煤岩体多向应力及其演化规律，自主研发了三向缸体压力感应器和煤岩体应力动态监测系统。感应器上设置的感应片可实现与煤岩体主动有效耦合，通过感应片伸缩变形和油压变化来反映煤岩体应力大小，进而通过该监测系统实现煤岩体应力多向、实时连续测量。将该系统应用于煤矿现场采动应力监测，分析了采场应力分布及演化规律。监测结果表明，多测点应力测量可反映巷道围岩应力分布及随采动等演化规律，可以确定巷道围岩卸压带范围、应力集中范围及应力集中程度等。实测分析得到了工作面巷道内帮煤体的三向正应力分布规律；各测点应力变化趋势基本一致，同一测点3个方向正应力并非完全同步；测试工作面巷旁存在2个应力峰值区及2个卸压带。该系统为定向监测煤岩体应力提供了有效手段和方法，可用于矿山应力监测分析、围岩稳定性监测分析、冲击地压等煤岩动力灾害监测预警等。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	王恩元1
	2
	3
	徐文全4
	何学秋3
	5
	沈荣喜1
	2
	3
	孔祥国1
	2
	3

关键词 ：岩石力学, 定向监测, 感应器, 应力, 各向异性, 煤岩体

Abstract：

Stress of coal and rock provides important basis for supporting design of mine，strata stress analysis，rock burst and other dynamic disasters prediction and prevention. In order to measure the stresses of coal and rock in various directions and obtain their evolution laws，stress sensors within three directions and dynamic stress monitoring system of coal and rock are developed. The chip set on the stress sensor can effectively couple with coal and rock，and the stress can be measured by the flexible deformation of sensor chip and oil pressure. By this monitoring system，the stresses of coal and rock in various directions can be monitored continuously in real time. And this system was applied to mine stress monitoring and its evolution laws analysis. The results showed that the stress distribution of surrounding roadway and it′s evolution laws，the stress relief region，the stress concentration range and degree could be gained through multi-points arrangement. According to the measured results，the normal stress distribution laws inside coal mass of the roadway were gained in three perpendicular directions，which displayed that the stress variation trend of every point coincided，but the normal stress of various directions about the same point was not synchronous. It revealed there were two stress relief and concentration regions beside the roadway. This system provides effective means and methods for directional monitoring coal and rock stress，which can be used to the analysis of mine stress，the monitoring of surrounding rock stability and early warning of rock burst and other dynamic disasters.

Key words： rock mechanics directional monitoring sensors stress anisotropy coal and rock mass

引用本文:

王恩元1，2，3，徐文全4，何学秋3，5，沈荣喜1，2，3，孔祥国1，2，3. 煤岩体应力动态监测系统开发及应用[J]. 岩石力学与工程学报, 2017, 36(S2): 3935-3942.
WANG Enyuan1，2，3，XU Wenquan4，HE Xueqiu3，5，SHEN Rongxi1，2，3，KONG Xiangguo1，2，3. Development and application of dynamic stress monitoring system for coal and rock mass. , 2017, 36(S2): 3935-3942.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2017.0175 或 https://rockmech.whrsm.ac.cn/CN/Y2017/V36/IS2/3935

[1] 蒋金泉，武泉林，曲华. 硬厚覆岩正断层附近采动应力演化特征[J]. 采矿与安全工程学报，2014，31(6)：881–887.(JIANG Jinquan，WU Quanlin，QU Hua. Evolutionary characteristics of mining stress near the hard-thick overburden normal faults[J]. Journal of Mining and Safety Engineering，2014，31(6)：881–887.(in Chinese))

[2] 康红普，冯彦军. 定向水力压裂工作面煤体应力监测及其演化规律[J]. 煤炭学报，2012，37(12)：1 953–1 959.(KANG Hongpu，FENG Yanjun. Monitoring of stress change in coal seam caused by directional hydraulic fracturing in working face with strong roof and its evolution[J]. Journal of China Coal Society，2012，37(12)：1 953–1 959.(in Chinese))

[3] 王振，胡千庭，文光才. 采动应力场分布特征及其对煤岩瓦斯动力灾害的控制作用分析[J]. 煤炭学报，2011，36(4)：623–627. (WANG Zhen，HU Qianting，WEN Guangcai. Study on the distribution laws of mining pressure field and its control action on dynamic disasters in coal mines[J]. Journal of China Coal Society，2011，36(4)：623–627.(in Chinese))

[4] 葛修润，侯明勋. 一种测定深部岩体地应力的新方法——钻孔局部壁面应力全解除法[J]. 岩石力学与工程学报，2004，23(23)：3 923–3 927.(GE Xiurun，Hou Mingxun. New approach to measure geostress——Local borehole-wall complete stress relief method[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(23)：3 923–3 927.(in Chinese))

[5] 李远，乔兰，孙歆硕. 关于影响空心包体应变计地应力测量精度若干因素的讨论[J]. 岩石力学与工程学报，2006，25(10)：2 140–2 144.(LI Yuan，QIAO Lan，SUN Xinshuo. Analysis of some factors affecting precision in in-situ stress measurement with method of csiro cells[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(10)：2 140–2 144.(in Chinese))

[1] 张芳，刘泉声，张程远，等. 流变应力恢复法地应力测试及装置[J]. 岩土力学，2014，35(5)：1 506–1 513.(ZHANG Fang，LIU Quansheng，ZHANG Chengyuan，et al. Geostress measurement using rheological stress recovery method and its equipment[J]. Rock and Soil Mechanics，2014，35(5)：1 506–1 513.(in Chinese))

[2] 纪杰，刘泉声，朱元广，等. 三维地应力测试系统及其在深部软岩中的应用研究[J]. 科学技术与工程，2016，16(16)：88–94.(JI Jie，LIU Quansheng，ZHU Yuanguang，et al. Three-dimensional test system of geostress and its practical research in deep soft rock[J]. Science Technology and Engineering，2016，16(16)：88–94.(in Chinese))

[1] 石振明，管圣功，陈锡锋. 侧限条件对振弦式应力计在混凝土应力量测中的影响性研究[J]. 工程地质学报，2011，19(4)：487–491.(SHI Zhenming，GUAN Shenggong，CHEN Xifeng. Study on confine conditions influence on vibrating string stress meter measuring concrete stress[J]. Journal of Engineering Geology，2011，19(4)：487–491.(in Chinese))

[2] 陈常松，颜东煌，陈政清，等. 混凝土振弦式应变计测试技术研究[J]. 中国公路学报，2004，17(1)：29–33.(CHEN Changsong，YAN Donghuang，CHEN Zhengqing，et al. Technique research of vibrational chord strain gauge to concrete[J]. China Journal of Highway and Transport，2004，17(1)：29–33.(in Chinese))

[6] 付东波，齐庆新，秦海涛，等. 采动应力监测系统的设计[J]. 煤矿开采，2009，14(6)：13–16.(FU Dongbo，QI Qingxin，QIN Haitao，et al. Design for mining stress monitoring system[J]. Coal Mining Technology，2009，14(6)：13–16.(in Chinese))

[1] 谷志孟，葛修润，潘汉洪. 利用液压应力计直接测定软岩应力的模型试验研究[J]. 岩土力学，1990，11(4)：23–34.(GU Zhimeng，GE Xiurun，PAN Hanhong. A experimental study of directly measurement of stress，in weak rock mass by means of hydraulic boring stress meter[J]. Rock and Soil Mechanics，1990，11(4)：23–34.(in Chinese))

[2] 谷志孟，葛修润. 软岩地应力测量新方法的试验研究[J]. 岩石力学与工程学报，1994，13(94)：339–348.(GU Zhimeng，GE Xiurun. Testing study of new method for in-situ stress measurement in soft rock[J]. Chinese Journal of Rock Mechanics and Engineering，1994，13(94)：339–348.(in Chinese))

[7] 于正兴，姜福兴，王洛锋. 提高钻孔应力计监测煤岩应力的精度试验[J]. 煤炭科学技术，2010，38(11)：53–55.(YU Zhengxing，JIANG Fuxing，WANG Luofeng. Experiment to improve accuracy of borehole stressmeter to monitor and measure coal and rock stress[J]. Coal Science and Engineering，2010，38(11)：53–55.(in Chinese))

[8] 刘庆，安里千，刘升贵，等. 万年矿巷道围岩松动圈的检测与支护优化探讨[J]. 矿业研究与开发，2008，28(6)：31–33.(LIU Qing，AN Liqian，LIU Shenggui，et al. Measure of loose rock zone around roadway and discussion on support optimization in Wannian mine[J]. Mining Research and Development，2008，28(6)：31–33.(in Chinese))

[9] 徐文全，王恩元，沈荣喜，等. 采动应力监测传感装置及应用研究[J]. 采矿与安全工程学报，2016，33(6)：1 123–1 129.(XU Wenquan，WANG Enyuan，SHEN Rongxi，et al. On the application of sensing device in mining stress monitoring[J]. Journal of Mining and Safety Engineering，2016，33(6)：1 123–1 129.(in Chinese))

[10] 谢广祥，杨科. 采场围岩宏观应力壳演化特征[J]. 岩石力学与工程学报，2010，29(增1)：2 676–2 680.(XIE Guangxiang，YANG Ke. Study of macro stress shell evolving characteristics of rock surrounding face[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(Supp.1)：2 676–2 680.(in Chinese))

[11] 司荣军，王春秋，谭云亮. 采场支承压力分布规律的数值模拟研究[J]. 岩土力学，2007，28(2)：351–354.(SI Rongjun，WANG Chunqiu，TAN Yunliang. Numerical simulation of abutment pressure distribution laws of working faces[J]. Rock and Soil Mechanics，2007，28(2)：351–354.(in Chinese))

[12] 刘长友，黄炳香，孟祥军，等. 超长孤岛综放工作面支承压力分布规律研究[J]. 岩石力学与工程学报，2007，26(增1)：2 761–2 766. (LIU Changyou，HUANG Bingxiang，MENG Xiangjun，et al. Research on abutment pressure distribution law of overlength isloated fully-mechanized top coal caving face[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.1)：2 761–2 766.(in Chinese))

[13] 白庆升，屠世浩，王方田，等. 浅埋近距离房式煤柱下采动应力演化及致灾机制[J]. 岩石力学与工程学报，2012，31(增2)：3 772–3 778.(BAI Qingsheng，TU Shihao，WANG Fangtian，et al. Stress evolution and induced accidents mechanism in shallow coal seam in proximity underlying the room mining residual pillars[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.2)： 3 772–3 778.(in Chinese))

[14] 刘金海，姜福兴，王乃国，等. 深井特厚煤层综放工作面支承压力分布特征的实测研究[J]. 煤炭学报，2011，36(增1)：18–22.(LIU Jinhai，JIANG Fuxing，WANG Naiguo，et al. Evolutionary characteristics of mining stress near the hard-thick overburden normal faults[J]. Journal of China Coal Society，2011，36 (Supp.1)：18–22. (in Chinese))

[15] 刘杰，王恩元，赵恩来，等. 深部工作面采动应力场分布变化规律实测研究[J]. 采矿与安全工程学报，2014，31(1)：60–65.(LIU Jie，WANG Enyuan，ZHAO Enlai，et al. Distribution and variation of mining-induced stress field in deep workface[J]. Journal of Mining and Safety Engineering，2014，31(1)：60–65.(in Chinese))

[16] 王嗣衡，王恩元，沈荣喜，等. 梁北煤矿11141工作面采动应力分布规律[J]. 煤矿安全，2014，45(9)：226–228，231.(WANG Siheng，WANG Enyuan，SHEN Rongxi，et al. Disturbance stress distribution law of working face 11141 of Liangbei coalmine[J]. Safety in Coal Mines，2014，45(9)：226–228，231.(in Chinese))

[17] 钱鸣高，石平五，许家林. 矿山压力与岩层控制[M]. 徐州：中国矿业大学出版社，2010：188–191.(QIAN Minggao，SHI Pingwu，XU Jialin. Mining Pressure and Strata Control[M]. Xuzhou：China University of Mining and Technology Press：2010，188–191.(in Chinese))