[1]李利萍,王淋,邰英楼.动静组合加载作用下块系岩体动力响应分析[J].中国安全生产科学技术,2016,12(11):5-10.[doi:10.11731/j.issn.1673-193x.2016.11.001]
LI Liping,WANG Lin,TAI Yinglou.Dynamic response analysis on block rock mass under combined static-dynamic load[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(11):5-10.[doi:10.11731/j.issn.1673-193x.2016.11.001]
点击复制
动静组合加载作用下块系岩体动力响应分析
LI Liping,WANG Lin,TAI Yinglou.Dynamic response analysis on block rock mass under combined static-dynamic load[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(11):5-10.[doi:10.11731/j.issn.1673-193x.2016.11.001]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 12
- 期数:
- 2016年11期
- 页码:
- 5-10
- 栏目:
- 学术论著
- 出版日期:
- 2016-11-30
文章信息/Info
- Title:
- Dynamic response analysis on block rock mass under combined static-dynamic load
- 文章编号:
- 1673-193X(2016)-11-0005-06
- Keywords:
- block rock mass; impact load; ultra-low friction effect; horizontal static force; residual displacement
- 分类号:
- X936
- 文献标志码:
- A
- 摘要:
- 深部复杂地质条件下，煤岩破碎更趋呈块系岩体，在动载作用下易于产生超低摩擦效应并失稳诱发煤岩动力灾害。采用FLAC-3D软件模拟块系岩体在垂直冲击载荷和水平静力共同作用下的动力响应，深入分析块系岩体超低摩擦效应发生机理，得到垂直冲击载荷和水平静力共同作用对工作块体位移和应力的影响规律，确定了块系岩体产生残余位移和超低摩擦效应的水平静力特征值条件。研究结果表明：仅垂直冲击载荷作用时，冲击载荷作用强度对残余位移影响并不明显；垂直冲击载荷和水平静力共同作用下，水平静力与残余位移曲线呈半抛物线关系；不同垂直冲击载荷作用下，产生残余位移的突变点不同，且当施加的水平静力处于不同特征值区间时，工作块体运动状态随之不同。
- Abstract:
- Under the deep complicated geological conditions, the coal rock tend to be broken as block rock mass, and under dynamic loading, the ultra-low friction effect is easy to be produced and the coal and rock dynamic disasters are easy to be induced with instability. The dynamic response of block rock mass under the combined effect of vertical impact load and horizontal static force was simulated by FLAC-3D software. The mechanism of ultra-low friction effect in block rock mass was analyzed, and the influence laws of block mass displacement and stress under the combined effect of vertical impact load and horizontal static force were obtained. The characteristic value conditions of horizontal static force to produce residual displacement and ultra-low friction effect in block rock mass were determined. The results showed that only under the effect of vertical impact load, the influence of impact load strength on residual displacement is not obvious. With the combined effect of vertical impact load and horizontal static force, the horizontal static force presents a half parabola relationship with the residual displacement. Under different vertical impact loading, the catastrophe points producing residual displacement are different. When the applied horizontal static force exists in different characteristic value interval, the motion state of working block mass is different accordingly.
参考文献/References:
［1］吴昊, 方秦, 王洪亮.深部块系岩体超低摩擦现象的机理分析［J］. 岩土工程学报,2008,30(5): 769-775.
WU Hao,FANG Qin,WANG Hongliang.Mechanism of anomalously low friction phenomenon in deep block rock mass［J］. Chinese Journal of Geotechnical Engineering,2008,30(5): 769-775.
[2]КУРЛЕНЯ М В, ОПАРИН В Н, БАЛМАШНОВА Е Г, д. т. О динамическом поведении напряженных блочн ых сред .ч.Ⅱ.［J］. ФТПРПИ,2001, (5):12-18.
[3]КУРЛЕНЯ М В, ОПАРИН В Н，ВОСТРИКОВ В И. Волны маятникого Тепа. Ч Ⅰ［J］. ФТПРПИ,1996, (3):3-8.
[4]КУРЛЕНЯ М В, ОПАРИН В Н, ВОСТРИКОВ В И. Волны маятникого Тепа. Ч Ⅱ［J］. ФТПРПИ,1996,(4):3-39.
[5]КУРЛЕНЯ М В, ОПАРИН В Н, ВОСТРИКОВ В И. Волны маятникого Тепа. Ч Ⅲ［J］. ФТПРПИ,1996,(5):3-27.
[6]KURLENYA M V, OPARIN V N, YERYOMENKO A A. On the ratio of the linear dimensions of rock blocks to the magnitudes of crack opening in the structural hierarchy of a mass［J］. Fiz.-Tekh. Probl. Razrab. Polezn. Iskop,1993,(2):6-33.
[7]王明洋, 周泽平, 钱七虎. 深部岩体的构造和变形与破坏问题［J］. 岩石力学与工程学报, 2006,25(3): 448-455.
WANG Mingyang,ZHOU Zeping,QIAN Qihu. Tectonic,deformation and failureproblems of deep rock mass［J］.Chinese Journalof Rock Mechanics and Engineering,2006,25(3):448-455.
[8]王明洋, 戚承志, 钱七虎. 深部岩体块系介质变形与运动特征研究［J］. 岩石力学与工程学报, 2005,24(16): 2825-2830.
WANG Mingyang,QI Chengzhi,QIAN Qihu.Study on deformation and motion characteristics of blocks in deep rock mass［J］.Chinese Journal of Rock Mechanics and Engineering,2005,24(16): 2825-2830.
[9]李宝富,徐学锋,任永康.巨厚砾岩作用下底板冲击地压诱发机理及过程［J］.中国安全生产科学技术,2014,10(3):11-17.
LI Bao fu,XU Xue feng,REN Yong kang.Induced mechanism and process of floor burst under the action of hugely thick conglomerate layer［J］.Journal of safety science and technology,2014,10(3):11-17.
[10]曾晟,江博为,邓显石,等.层状节理岩体模型冲击实验［J］.中国安全生产科学技术,2016,12(1):176-180.
ZENG Sheng,JIANG Bowei,DENG Xianshi,et al.Impact tests on model of layered and jointed rock mass［J］.Journal of Safety Science and Technology,2016,12(1):176-180.
[11]王洪亮, 葛涛, 王德荣, 等. 块系岩体动力特性理论与实验对比分析［J］. 岩石力学与工程学报,2007,26(5):951-958.
WANG Hongliang,GE Tao,WANG Derong,et al.Comparison of theoretical and experimental analyses of dynamic characteristics of block rock mass［J］.Chinese Journal of Rock Mechanics and Engineering,2007,26(5): 951-958.
[12]许琼萍,陆渝生, 王德荣. 深部岩体块系摩擦减弱效应试验［J］. 解放军理工大学学报(自然科学版),2009,10(3):285-289.
XU Qiongping,LU Yusheng,WANG Derong.Experimental study on friction weakened effect of deep block rock mass［J］Journal of PLA University of Science and Technology(Natural Science Edition), 2009,10(3):285-289.
[13]孙书伟, 林杭, 任连伟. FLAC3D在岩土工程中的应用［M］.北京:中国水利水电出版社,2011.
SUN Suwei,LIN Hang,REN Lianwei.The application of FLAC3D in geotechnical engineering［M］.Beijing:China WaterPower Press,2011.
相似文献/References:
[1]高建良,王文祺,吴泽琳,等.回采工作面瓦斯爆炸风门冲击载荷研究*[J].中国安全生产科学技术,2021,17(5):73.[doi:10.11731/j.issn.1673-193x.2021.05.011]
GAO Jianliang,WANG Wenqi,WU Zelin,et al.Research on impact load of damper by gas explosion in mining face[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(11):73.[doi:10.11731/j.issn.1673-193x.2021.05.011]
备注/Memo
- 备注/Memo:
- 国家自然科学基金青年项目（51204090）；国家重点研发计划专项项目（2016YFC0600901）；辽宁省自然科学基金项目（201602353）
