文献类型：期刊文献

英文题名：Moisture Content on Methane Desorption Characteristics in Coal and Its Effect on Outburst Prediction

作者：Li, Peng Cao, Yaolin Li, Xuelong Wang, Fakai Sun, Zhongguang Huang, Qinke Chen, Deyou

第一作者：Li, Peng

通信作者：Li, XL[1];Li, XL[2]

机构：[1]Shenyang Res Inst Co Ltd, China Coal Technol & Engn Grp, Fushun 113122, Peoples R China;[2]State Key Lab Coal Mine Safety Technol, Fushun 113122, Peoples R China;[3]Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao 266590, Shandong, Peoples R China;[4]Chongqing Univ, Coll Resources & Environm Sci, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China;[5]Guizhou Inst Technol, Coll Min Engn, Guiyang 550000, Peoples R China;[6]State Key Lab Gas Disaster Detecting Preventing &, Chongqing 400037, Peoples R China

第一机构：Shenyang Res Inst Co Ltd, China Coal Technol & Engn Grp, Fushun 113122, Peoples R China

通信机构：corresponding author), Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao 266590, Shandong, Peoples R China;corresponding author), Chongqing Univ, Coll Resources & Environm Sci, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China.

年份：2021

卷号：2021

外文期刊名：ADVANCES IN CIVIL ENGINEERING

收录：;Scopus(收录号：2-s2.0-85143434718);WOS:【SCI-EXPANDED(收录号:WOS:000893535800001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (52104204), the Cultivation and Exploration and Innovation Project of New Academic Seedlings of Guizhou Institute of Technology (GZLGXM-04), the Natural Science Foundation of Chongqing China (cstc2019jcyj-msxmX0633, cstc2019jcyj-bsh0041, and cstc2020jcyj-msxmX0972), the Natural Science Foundation of Shandong Province (ZR2021QE170), the Science Innovation and Entrepreneurship Special Funded Projects of China Coal Technology and Engineering Group (2020-TD-ZD007), and the Science and Technology Planning Project of Jiulongpo District (2020-02-005-Y), which are gratefully acknowledged.

语种：英文

摘要：Facts have proved that coal and gas outbursts require rapid desorption in a short period of time. Due to the limitation of experimental conditions, the methane desorption characteristics in the first few seconds (0-60 s) in coals with different moisture contents have not been fully studied at present. In this article, the initial desorption characteristics of methane in coals with different moisture contents were investigated using a self-developed experimental setup. In order to collect enough methane pressure data for analysis and calculation, a self-developed real-time data acquisition system with a time interval of about 10 ms was used in the experiment to calculate the initial gas desorption amount and the initial gas velocity diffusion index (Delta P). Experiments show that coal with low water content and methane outburst is more dangerous than coal with high water content and outburst; and the degree of outburst of coal and methane decreases exponentially with the increase of moisture content.