|本期目录/Table of Contents|

[1]马海峰,李传明,李家卓,等.不同推进速度下煤岩体采动力学行为响应特征与控制[J].中国安全生产科学技术,2016,12(12):74-79.[doi:10.11731/j.issn.1673-193x.2016.12.013]
　MA Haifeng,LI Chuanming,LI Jiazhuo,et al.Response characteristics of mining-induced mechanical behavior for coal and rock mass under different advancing speed and its control[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(12):74-79.[doi:10.11731/j.issn.1673-193x.2016.12.013]
点击复制

不同推进速度下煤岩体采动力学行为响应特征与控制
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年12期
页码:
74-79
栏目:
现代职业安全卫生管理与技术
出版日期:
2016-12-30

文章信息/Info

Title:
Response characteristics of mining-induced mechanical behavior for coal and rock mass under different advancing speed and its control
文章编号:
1673-193X(2016)-12-0074-06
作者:
马海峰1; 2; 3; 李传明1; 李家卓1; 袁安营1; 刘万荣1; 朱传奇1
(1. 安徽理工大学 能源与安全学院，安徽 淮南 232001；2. 中国矿业大学 煤炭资源与安全开采国家重点实验室，江苏 徐州 221116；3. 深部煤矿采动响应与灾害防控安徽省重点实验室，安徽 淮南 232001)
Author(s):
MA Haifeng1; 2; 3;  LI Chuanming1;  LI Jiazhuo1;  YUAN Anying1;  LIU Wanrong1;  ZHU Chuanqi1
(1. Faculty of Energy and Safety Engineering, Anhui University of Science and Technology, Huainan Anhui 232001, China; 2. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou Jiangsu 221116, China; 3. The Provincial Key Laboratory of Mining Effects and Disasters Preventing Under Deep Mining in Anhui, Huainan Anhui 232001, China)
关键词:
推进速度; 采动力学行为; 加载速率; 静水压力
Keywords:
advancing speed;  mining-induced mechanical behavior;  loading rate;  hydrostatic pressure
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2016.12.013
文献标志码:
A
摘要:
为获得不同推进速度下煤岩体的采动力学行为特征，通过轴压和围压分别模拟不同推进速度下垂直应力、水平应力，采用增轴压降围压的方式模拟煤岩体的采动力学行为，同时采用数值模拟和工程实践相结合的方法对不同推进速度下煤岩体的采动力学行为进行研究。结果表明：在围压卸载速率相同的条件下，随着轴压加载速率（推进速度）的增加，煤体的峰值强度、轴向应变和横向应变呈增大趋势，在峰值阶段产生了较大的轴向应变和横向应变，呈现出一定的延性，破坏形式具有塑性特征；在轴向加载和围压卸载的综合作用下，煤体体积一直处于膨胀变形状态，围压的卸载加速了煤体损伤破坏的进程，煤体破坏时的峰值应力和体积扩容受控于围压卸载的程度，控制轴压加载速率和围压卸载程度可控制煤体破坏时的峰值应力和体积变形。生产实践中，应结合煤岩体的采动力学行为特征，确定合理的推进速度并加以控制，以保证回采巷道与采场围岩的稳定性。
Abstract:
In order to obtain the characteristics of mining-induced mechanical behavior for coal and rock mass under different advancing speed, the vertical stress and horizontal stress under different advancing speed were simulated through axial compression and confining pressure respectively, and the mining-induced mechanical behavior of coal and rock mass was simulated by using the way of increasing axial compression and dropping confining pressure. At the same time, the mining-induced mechanical behavior of coal and rock mass under different advancing speed was studied by using the combined methods of numerical simulation and engineering practice. The results showed that under the conditions of the same unloading rate of confining pressure, the peak strength, axial strain and transverse strain of coal body present an increasing trend with the increasing loading rate of axial compression (advancing speed). The larger axial strain and transverse strain appear in the peak phase, which presents a certain ductility, and the destruction form has the plastic characteristic. The volume of coal body is always in a state of expansion and deformation under the combined effect of axial loading and confining pressure unloading, and the process of coal body damage is accelerated by confining pressure unloading. The peak stress of destruction and volume expansion are controlled by unloading degree of confining pressure, and the peak stress and volume deformation can be controlled by controlling the loading rate of axial compression and unloading degree of confining pressure. Reasonable advancing speed should be determined and controlled combining with the characteristics of mining-induced mechanical behavior for coal and rock mass in production practice, so as to ensure the stability of mining roadway and surrounding rock in stope.

参考文献/References:

［1］谢和平，周宏伟，刘建峰，等. 不同开采条件下采动力学行为研究［J］. 煤炭学报，2011，36（7）：1067-1074. XIE Heping, ZHOU Hongwei, LIU Jianfeng, et al. Mining-induced mechanical behavior in coal seams under different mining layouts［J］. Journal of China Coal Society,2011,36(7): 1067-1074.
[2]尹光志，蒋长宝，王维忠，等. 不同卸围压速度对含瓦斯煤岩力学和渗流特性影响试验研究［J］. 岩石力学与工程学报，2011，30（1）：68-77. YIN Guangzhi,JIANG Changbao,WANG Weizhong,et al. Experimental study of influence of confining pressure unloading speed on mechanical properties and gas permeability of containing-gas coal rock［J］. Chinese Journal of Rock Mechanics and Engineering,2011,30(1): 68-77.
[3]尹光志，李文璞，李铭辉，等. 不同加卸载条件下含瓦斯煤力学特性试验研究［J］. 岩石力学与工程学报，2013，32（5）：891-901. YIN Guangzhi, LI Wenpu, LI Minghui, et al. Experimental study of mechanical properties of coal containing methane under different loading-unloading conditions ［J］. Chinese Journal of Rock Mechanics and Engineering, 2013,32(5): 891-901.
[4]蒋长宝，黄滚，黄启翔. 含瓦斯煤多级式卸围压变形破坏及渗透率演化规律实验［J］. 煤炭学报，2011，36（12）：2039-2042. JIANG Changbao, HUANG Gun, HUANG Qixiang. Experiment on deformation failure and permeability evolution law of gas-containing coal under multi-stage unloading confining pressure［J］. Journal of China Coal Society, 2011, 36(12): 2039-2042.
[5] 蒋长宝，尹光志，黄启翔，等. 含瓦斯煤岩卸围压变形特征及瓦斯渗流试验［J］. 煤炭学报，2011，36（5）：802-807. JIANG Changbao,YIN Guangzhi,HUANG Qixiang,et al. Experiment of deformation property and gas permeation of containing-gas coal under confining pressure unloading process［J］.Journal of China Coal Society,2011,36(5): 802-807.
[6]郭印同，杨春和，付建军. 盐岩三轴卸荷力学特性试验研究［J］. 岩土力学，2012，33（3）：725-730. GUO Yintong, YANG Chunhe, FU Jianjun. Experimental research on mechanical characteristics of salt rock under triaxial unloading text［J］. Rock and Soil Mechanics,2012,33(3): 725-730,738.
[7]HE M C, MIAO J L, FENG J L. Rock burst process of limestone and its acoustic emission characteristics under true-triaxial unloading conditions［J］. International Journal of Rock Mechanics and Mining Sciences,2010,47(2): 286-298.
[8]薛东杰，周宏伟，唐咸力，等. 采动工作面前方煤岩体积变形及瓦斯增透研究［J］. 岩土工程学报，2013，35（2）：328-336. XUE Dongjie, ZHOU Hongwei, TANG Xianli, et al. Mechanism of deformation-induced damage and gas permeability enhancement of coal under typical mining layouts ［J］. Chinese Journal of Geotechnical Engineering,2013,35(2): 328-336.
[9]高召宁，郑志伟，潘继良，等. 采动与承压水耦合作用下煤层底板的力学效应及破坏机理分析［J］. 中国安全生产科学技术，2016，12（3）：10-14. GAO Zhaoning, ZHENG Zhiwei, PAN Jiliang, et al. Analysis on mechanical effect and damage mechanism of coal seam floor under the coupling action of mining and confined water ［J］. Journal of Safety Science and Technology, 2016，12(3): 10-14.
[10]邓红卫，罗黎明，李爽，等. 动力扰动作用下充填体的力学响应研究［J］. 中国安全生产科学技术，2016，12（2）：62-67. DENG Hongwei, LUO Liming, LI Shuang, et al. Study on mechanical response of backfill under dynamic disturbance ［J］. Journal of Safety Science and Technology, 2016, 12(2): 62-67.
[11]尹光志，李铭辉，李文璞，等. 瓦斯压力对卸荷原煤力学及渗透特性的影响［J］. 煤炭学报，2012，37(9): 1499-1504. YIN Guangzhi, LI Minghui, LI Wenpu, et al. Influence of gas pressure on mechanical and seepage characteristics of coal under unloading condition ［J］. Journal of China Coal Society, 2012, 37(9): 1499-1504.
[12]秦虎，黄滚，贾泉敏. 含瓦斯煤岩卸围压声发射特性及能量特征分析［J］. 煤田地质与勘探，2015，43(5): 86-89，94. QIN Hu, HUANG Gun, JIA Quanmin. Analysis of characteristics of acoustic emission and energy of of gas-bearing coal during unloading confining pressure ［J］. Coal Geology & Exploration, 2015, 43(5): 86-89,94.
[13]刘杰，王恩元，宋大钊，等. 岩石强度对于组合试样力学行为及声发射特性的影响［J］. 煤炭学报，2014，39(4): 685-691. LIU Jie, WANG Enyuan, SONG Dazhao, et al. Effects of rock strength on mechanical behavior and acoustic emission characteristics of samples composed of coal and rock ［J］. Journal of China Coal Society, 2014, 39(4): 685-691.
[14]李家卓，马海峰，殷志强，等. 采动底板力学特征及其对回采巷道稳定性影响［J］. 中国安全生产科学技术，2014，10(3): 18-23. LI Jiazhuo, MA Haifeng, YIN Zhiqiang, et al. Mechanical characteristics of mining floor and the influence to mining roadway stability ［J］. Journal of Safety Science and Technology, 2014, 10(3): 18-23.
[15]翟晓荣，吴基文，沈书豪，等. 断层带边界岩体采动应力特征相似材料模拟研究［J］. 中国安全生产科学技术，2014，10(5): 56-61. ZHAI Xiaorong, WU Jiwen, SHEN Shuhao, et al. Study on similar material simulation of rock mass mining stress at fault boundary ［J］. Journal of Safety Science and Technology, 2014, 10(5): 56-61.
[16]张周鑫，刘启蒙，刘丽红，等. 大断层采动“活化”导水特性研究［J］. 中国安全生产科学技术，2014，10(7): 44-48. ZHANG Zhouxin, LIU Qimeng, LIU Lihong, et al. Study on characteristics of activating to conduct water in large-scale fault undermining ［J］. Journal of Safety Science and Technology, 2014, 10(7): 44-48.

相似文献/References:

[1]徐燕飞,安士凯,徐翀,等.坚硬顶板综采工作面推进速度对矿压规律影响研究[J].中国安全生产科学技术,2019,15(10):88.[doi:10.11731/j.issn.1673-193x.2019.10.014]
　XU Yanfei,AN Shikai,XU Chong,et al.Influence of advancing speed on strata behaviors in fullymechanized face with hard roof[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(12):88.[doi:10.11731/j.issn.1673-193x.2019.10.014]
[2]王云刚,唐飞,杜炳成,等.超长回采工作面微震特征的影响因素研究*[J].中国安全生产科学技术,2022,18(8):91.[doi:10.11731/j.issn.1673-193x.2022.08.014]
　WANG Yungang,TANG Fei,DU Bingcheng,et al.Study on influencing factors of microseismic characteristics of ultra-long mining face[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(12):91.[doi:10.11731/j.issn.1673-193x.2022.08.014]

备注/Memo

备注/Memo:
国家自然科学基金项目(51504005)；中国矿业大学煤炭资源与安全开采国家重点实验室开放基金项目(SKLCRSM16KF04)
更新日期/Last Update: 2017-01-13