›› 2010, Vol. 31 ›› Issue (8): 2604-2612.

• Numerical Analysis • Previous Articles     Next Articles

Intermittent chaotic model of hole depth developing and opening formation in coal and gas outburst

PAN Yue1, ZHAO Zhi-gang2 , ZHANG Xiao-wu 1   

  1. 1. College of Civil engineering, Qingdao Technological University, Qingdao ,Shangdong 266520, China; 2. College of Resource and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shangdong 266510, China
  • Received:2009-01-04 Online:2010-08-10 Published:2010-08-30

PDF (Chinese)

2402

Abstract:

Coal and gas outburst is one highly nonlinear behavior of coal-gas system far away from equilibrium, which is the most complex dynamic disaster triggered by underground mining. Chaos theory is briefly reviewed first, and evolution process of coal and gas outburst is analyzed based on this theory. It is thought that coal and rock system is in a chaotic state of lower nested tier before outburst, and during outburst a series of simplified coal shells are avalanching burst in a short time, holes are formed in a rhythmical fast iterative stage of intermittent chaos state; and the system is in a stable equilibrium state after outburst. The behaviors of outburst occurrence, development and termination, based on the universal properties of various nonlinear mappings in describing complex problems, can be expressed by the intermittent chaos state iterative computation which uses the Logistic function and the composite function as kernel function. The primary formulas of relative hole depth and outburst parameter in kernel function are given. The conclusions are helpful to deepen and abound the understanding of physical essence of outburst.

Key words: coal and gas outburst, hole, coal shell failure, complexity, chaos, Logistic mappings, iteration

CLC Number: 

  • TD 324+.1
[1] WANG Jin-chao, WANG Chuan-ying, TANG Xin-jian, HAN Zeng-qiang, WANG Yi-teng, HU Sheng. Research on karst cavity detection method based on multi-frequency borehole sonar [J]. Rock and Soil Mechanics, 2020, 41(1): 353-361.
[2] YIN Guang-zhi, LU Jun, ZHANG Dong-ming, LI Ming-hui, DENG Bo-zhi, LIU Chao, . Study on plastic zone and permeability-increasing radius of borehole surrounding rock under true triaxial stress conditions [J]. Rock and Soil Mechanics, 2019, 40(S1): 1-10.
[3] WANG Chuan-ying, WANG Yi-teng, HAN Zeng-qiang, WANG Jin-chao, ZOU Xian-jian, HU Sheng, . An in-situ stress measurement method based on borehole shape analysis [J]. Rock and Soil Mechanics, 2019, 40(S1): 549-556.
[4] WANG Jin-chao, TAO Dong-xin, HUANG Yan-qing, WANG Chuan-ying, HAN Zeng-qiang, HU Sheng, . Borehole imaging method based on ultrasonic synthetic aperture technology [J]. Rock and Soil Mechanics, 2019, 40(S1): 557-564.
[5] TANG Xiao-wu, LIU Jiang-nan, YANG Xiao-qiu, YU Yue. Theoretical study of dynamic pore water pressure dissipation characteristics of open-hole pipe pile [J]. Rock and Soil Mechanics, 2019, 40(9): 3335-3343.
[6] SUN Bo, YANG Huai-de, GU Ling, LIU Yue, TANG Bi-hua, ZHAO Gui-lian, ZHANG Lian-ming. Analysis of uncertainty in UDEC grain-based model [J]. Rock and Soil Mechanics, 2019, 40(9): 3679-3688.
[7] LI Li, YU Cui, SUN Tao, HAN Zeng-qiang, TANG Xin-jian, . Automatic identification of solution fissure from borehole digital optical image based on color features [J]. Rock and Soil Mechanics, 2019, 40(8): 3274-3281.
[8] ZHAO Zhen-hua, ZHANG Xiao-jun, LI Xiao-cheng, . Experimental study of stress relaxation characteristics of hard rocks with pressure relief hole [J]. Rock and Soil Mechanics, 2019, 40(6): 2192-2199.
[9] WANG Hai-jun, YU Shu-yang, REN Ran, TANG Lei, LI Xin-yun, JIA Yu, . Study on failure of brittle solids with circular hole and internal crack based on 3D-ILC [J]. Rock and Soil Mechanics, 2019, 40(6): 2200-2212.
[10] SUN Qian-cheng, ZHENG Min-zong, LI Shao-jun, GUO Hao-sen, CHENG Yuan, PEI Shu-feng, JIANG Quan, . Variation characteristics and determination of tunnel relaxation depth of columnar jointed rock mass [J]. Rock and Soil Mechanics, 2019, 40(2): 728-736.
[11] XU Jiang, SONG Xiao-zheng, PENG Shou-jian, ZHANG Chao-lin, LI Qi-xian, ZHANG Xiao-lei, . Physical simulation experiment on influence of borehole spacing along the seam on effect of gas drainage [J]. Rock and Soil Mechanics, 2019, 40(12): 4581-4589.
[12] LIU He, LIU Quan-sheng, TANG Xu-hai, LUO Ci-you, WAN Wen-kai, CHEN Lei, PAN Yu-cong, . Identification of the interaction loads between TBM shield and surrounding rock [J]. Rock and Soil Mechanics, 2019, 40(12): 4946-4954.
[13] GE Yun-feng, ZHONG Peng, TANG Hui-ming, ZHAO Bin-bin, WANG Liang-qing, XIA Ding, QIU Ya-shi, LI Peng-fei, ZHANG Li, WEN Lian, CAO Tian-ci, . Intelligent measurement on geometric information of rock discontinuities based on borehole image [J]. Rock and Soil Mechanics, 2019, 40(11): 4467-4476.
[14] YUAN Liang, LIU Ye-jiao, TIAN Zhi-chao, TANG Chun-an, XUE Jun-hua, DUAN Chang-rui, ZHANG Han, . Numerical test and application of gas pre-drainage in an extra-thick seam by using ground vertical boreholes [J]. Rock and Soil Mechanics, 2019, 40(1): 370-378.
[15] WU Shun-chuan, JIANG Ri-hua, ZHANG Shi-huai, ZHANG Min, . Application of a modified Hoek-Brown strength criterion to borehole stability analysis [J]. Rock and Soil Mechanics, 2018, 39(S2): 1-13.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] ZHU Yun-hua, LIU Xin-rong, SHU Zhi-le. [J]. , 2009, 30(10): 3215 -3216 .
[2] LIU Xiao-wen，CHANG Li-jun，HU Xiao-rong. Experimental research of matric suction with water content and dry density of unsaturated laterite[J]. , 2009, 30(11): 3302 -3306 .
[3] HUANG Jian-hua，SONG Er-xiang. Research on mechanical properties of frozen curtain in large anchorage foundation pit engineering[J]. , 2009, 30(11): 3372 -3378 .
[4] WANG Guan-shi, LI Chang-hong, CHEN Bao-jun, LI Sh-ihai. Propagation law of stress wave in nonlinear structural surface medium[J]. , 2009, 30(12): 3747 -3752 .
[5] WANG Zhao-yang, XU Qiang, NI Wan-kui. Study of undisturbed loess stress-strain relation during CT test[J]. , 2010, 31(2): 387 -391 .
[6] DENG Qin，GUO Ming-wei，LI Chun-guang，GE Xiu-run. Vector sum method for slope stability analysis based on boundary element method[J]. , 2010, 31(6): 1971 -1976 .
[7] WAN Shao-shi, NIAN Ting-kai, JIANG Jing-cai, LUAN Mao-tian. Discussion on several issues in slope stability analysis based on shear strength reduction finite element methods (SSR-FEM)[J]. , 2010, 31(7): 2283 -2288 .
[8] YAN Tie, LI Wei, BI Xue-liang. Research on effective stress model in porous media based on fractal method[J]. , 2010, 31(8): 2625 -2629 .
[9] LIU Jia, WANG Dong. Tension resistance and suction of plate anchor foundation in normally consolidated clay[J]. , 2009, 30(3): 735 -740 .
[10] ZHAO Shang-yi, ZHENG Ying-ren, LI An-hong, QIU Wen-ping, TANG Xiao-song. Application of multi-row embedded anti-slide piles to landslide of Wulong county government[J]. , 2009, 30(S1): 160 -164 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd