COAL GEOLOGY & EXPLORATION 2009 Vol. 37 No. 4

Molecular characterization of flash pyrolysates of Jurassic vitrinites in Northwest China and its geological implications

LIU Da-yong, PENG Ping-an, YU Chi-ling

2009, 37(4): 1-5. DOI: 10.3969/j.issn.1001-1986.2009.04.001

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The flowing and outburst mechanism of gas in coal-based pore and fractured medium

HU Wei-yue, LI Jing, WANG Shou-quan

2009, 37(4): 6-8,14. DOI: 10.3969/j.issn.1001-1986.2009.04.002

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Coal petrography variation in the sequence stratigraphic frame of the Jurassic coal measures of Dameigou mine area in Northern Qaidam Basin

LU Jing, SHAO Long-yi, JU Qi, LIU Tian-ji, WEN Huai-jun, LI Yong-hong, ZHANG Fa-de, GAO Di

2009, 37(4): 9-14. DOI: 10.3969/j.issn.1001-1986.2009.04.003

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An experimental research on coalbed spontaneous combustion simulation

JING Xing-peng, WANG Ya-chao, WANG Wei-feng, PANG Xiang-wei, XU Ping

2009, 37(4): 15-18. DOI: 10.3969/j.issn.1001-1986.2009.04.004

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Analysis of coal gas dynamic phenomenon in Xinmi coalfield

BAI Xin-hua, JIA Tian-rang, ZHANG Zi-min, ZHANG Yu-gui, LI Pu

2009, 37(4): 19-21,33. DOI: 10.3969/j.issn.1001-1986.2009.04.005

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Development of a controlling and decision-making system for coalbed methane drainage vertical wells

NI Xiao-ming, SU Xian-bo, WANG Yan-bin

2009, 37(4): 22-25. DOI: 10.3969/j.issn.1001-1986.2009.04.006

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The numerical simulation of seepage rule of coal-bed gas under the condition of inter-well interference

YANG Xin-le, ZHANG Yong-li, XIAO Xiao-chun

2009, 37(4): 26-29. DOI: 10.3969/j.issn.1001-1986.2009.04.007

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Coal floor strata failure depth test of working face at big mining depth

JIANG Qin-ming

2009, 37(4): 30-33. DOI: 10.3969/j.issn.1001-1986.2009.04.008

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A discussion on water inrush coefficient

LIU Qi-sheng

2009, 37(4): 34-37,42. DOI: 10.3969/j.issn.1001-1986.2009.04.009

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Design and analysis of water storage-drainage system in abandoned roadway of mine

LING Cheng-peng, ZHOU Qi-you, SUN Ya-jun, WANG Gang, WU Shi-yan

2009, 37(4): 38-42. DOI: 10.3969/j.issn.1001-1986.2009.04.010

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Discussion on hazardous trace elements precipitation process in coal gangue

WU Xu-ren, HAO Qi-yong, FAN Shi-yan

2009, 37(4): 43-46. DOI: 10.3969/j.issn.1001-1986.2009.04.011

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Jet grouting curtain supporting technology for shaft heading face through quicksand layers with confined water

ZHU Ming-cheng

2009, 37(4): 47-49. DOI: 10.3969/j.issn.1001-1986.2009.04.012

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Wang-Yu algorithm of non-circular critical slip surface for soil slop

XIONG Zheng, ZHOU Juan, WU Fa-quan

2009, 37(4): 50-53,56. DOI: 10.3969/j.issn.1001-1986.2009.04.013

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The hazards of coal refuse piles and their ecological reconstruction

CHENG Gong-lin, CHEN Yong-chun

2009, 37(4): 54-56. DOI: 10.3969/j.issn.1001-1986.2009.04.014

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The analysis and determination of shear strength of Jinle landslide slip zone

LU Xue-song, WENG Xin-long, FAN Wen-yan, SUN Xiao-lin

2009, 37(4): 57-60,63. DOI: 10.3969/j.issn.1001-1986.2009.04.015

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Rayleigh wave detection technology used in in-advance geological detection

DING Bao-guo, SHEN Yue-jia

2009, 37(4): 61-63. DOI: 10.3969/j.issn.1001-1986.2009.04.016

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The instantaneous frequency analysis of GPR data using empirical mode decomposition

YANG Qiu-fen

2009, 37(4): 64-67. DOI: 10.3969/j.issn.1001-1986.2009.04.017

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Application of fine stratigraphic division and comparison based on wavelet analysis in Zhuang 9 block

ZHAO Jun-long, LI Xin-sheng

2009, 37(4): 68-71,73. DOI: 10.3969/j.issn.1001-1986.2009.04.018

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Development of the well bottom electricity-driven percussive and rotating drill tool

LU Hong-zhi, YAN Tai-ning, JIANG Guo-sheng

2009, 37(4): 72-73. DOI: 10.3969/j.issn.1001-1986.2009.04.019

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Design of separating workpieces for drilling rod

TIAN Dong-zhuang

2009, 37(4): 74-76. DOI: 10.3969/j.issn.1001-1986.2009.04.020

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Wellbore dynamic surge pressure while tripping a drill pipe in slim hole drilling

ZHANG Jie, YAN Tai-ning

2009, 37(4): 77-80. DOI: 10.3969/j.issn.1001-1986.2009.04.021

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