文献类型：期刊文献

英文题名：Spatial Risk Prediction of Coal Seam Gas Using Kriging Under Complex Geological Conditions

作者：Li, Qingsong Wei, Yanjun Luo, Weidong Zhao, Xun Li, Hongsheng Duan, Zhengpeng

第一作者：Li, Qingsong

通信作者：Wei, YJ[1]

机构：[1]Guizhou Inst Mine Safety Sci Co Ltd, Guiyang 550025, Peoples R China;[2]Guizhou Coal Mine Design & Res Inst Co Ltd, Guiyang 550025, Peoples R China;[3]Guizhou Univ, Coll Resources & Environm Engn, Guiyang 550025, Peoples R China;[4]Guizhou Shui Kuang Holding Grp Co Ltd, Shuicheng 553000, Liupanshui, Peoples R China;[5]Guizhou Inst Technol, Sch Min Engn, Guiyang 550025, Peoples R China

第一机构：Guizhou Inst Mine Safety Sci Co Ltd, Guiyang 550025, Peoples R China

通信机构：corresponding author), Guizhou Shui Kuang Holding Grp Co Ltd, Shuicheng 553000, Liupanshui, Peoples R China.

年份：2025

卷号：13

期号：7

外文期刊名：PROCESSES

收录：;EI(收录号：20253018864715);Scopus(收录号：2-s2.0-105011632995);WOS:【SCI-EXPANDED(收录号:WOS:001535510400001)】；

基金：This work was supported by the Guizhou Provincial High-Level Innovative Talent Program (No. GCC [2023]102), the Guizhou Provincial Basic Research Program (Natural Science) QKHJC [2023]199, the Guizhou Provincial Science and Technology Program (QKHFQ [2024]006), and Guizhou Provincial Science and Technology Projects (Qianke Support [2023] General 360).

语种：英文

外文关键词：mine gas; kriging algorithm; risk identification in advance; coal and gas outburst

摘要：Coal and gas outbursts are one of the major hidden hazards in coal mine production safety. To achieve the effective prevention and control of this type of disaster, detailed measurements of relevant parameters are conducted based on the No. 9 coal seam in Longfeng Coal Mine, Guizhou Province. Using the obtained data and combining it with the Kriging algorithm, the gas content in the coal seam is accurately predicted and analyzed, taking into account the spatial location of the prediction points and the prediction level. This investigation reveals the regional occurrence characteristics of gas under complex geological conditions and enables the early identification of regional gas hazards. The main findings are as follows: (i) There is a significant relationship between gas content, elevation, and burial depth in the studied coal seam. The relationship between gas content and elevation can be expressed by the following formula: y = -0.0406x + 54.845, R2 = 0.9202. The relationship between gas content and burial depth can be expressed by the following formula: y = 0.0269x + 5.1801, R2 = 0.8925. (ii) The gas content reaches a critical value of 8 m/t when the coal seam burial depth reaches 105 m, and the area below 105 m is identified as the outburst hazard zone. (iii) The gas content prediction function formula for coal seam No. 9 based on the Kriging algorithm is derived as y = 0.84x + 1.840, with an average prediction accuracy of 90.44%.