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[1]荣腾龙,刘鹏炬,张盛,等.采动煤体渗透率实验室实验关键问题研究进展*[J].中国安全生产科学技术,2022,18(11):53-61.[doi:10.11731/j.issn.1673-193x.2022.11.008]
　RONG Tenglong,LIU Pengju,ZHANG Sheng,et al.Research progress on key issues in laboratory tests on permeability of coal under mining[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(11):53-61.[doi:10.11731/j.issn.1673-193x.2022.11.008]
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采动煤体渗透率实验室实验关键问题研究进展*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年11期
页码:
53-61
栏目:
职业安全卫生管理与技术
出版日期:
2022-11-30

文章信息/Info

Title:
Research progress on key issues in laboratory tests on permeability of coal under mining
文章编号:
1673-193X(2022)-11-0053-09
作者:
荣腾龙; 刘鹏炬; 张盛; 神文龙; 关灿; 刘克柳
（1.河南理工大学 能源科学与工程学院，河南 焦作 454003;
2.煤炭安全生产与清洁高效利用省部共建协同创新中心，河南 焦作 454003）
Author(s):
RONG Tenglong;  LIU Pengju;  ZHANG Sheng;  SHEN Wenlong;  GUAN Can;  LIU Keliu
(1.School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo Henan 454003,China;
2.Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization,Henan Polytechnic University,Jiaozuo Henan 454003,China)
关键词:
煤体渗透率; 实验室实验; 采动应力; 瓦斯压力; 滑脱效应
Keywords:
coal permeability;  laboratory test;  mining stress;  gas pressure;  slippage effect
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2022.11.008
文献标志码:
A
摘要:
为了分析影响采动煤体渗透率实验结果的关键因素，结合煤体赋存结构特征和地质环境影响，针对采动煤体渗透率实验室实验中关键问题进行综述研究。研究结果表明：采动应力和瓦斯压力是影响采动煤体渗透率演化的2个主控因素。采动应力路径可划分为2段式、3段式和4段式，瓦斯压力变化对煤体渗透率的影响作用包括有效应力和吸附解吸。当前实验室渗透实验中有效应力的计算方法尚不统一。低渗煤体渗透实验中滑脱效应十分显著，但滑脱效应的影响范围和不同条件下Klinkenberg系数均难以精准确定。研究结果可为煤体渗透率实验室测定提供有益参考。
Abstract:
In order to analyze the key factors affecting the permeability test results of coal under mining,several key issues in laboratory test on the permeability of coal under mining were reviewed and studied combined with the occurrence structure characteristics of coal and the influence of geological environment.The results showed that the mining stress and gas pressure were the two main controlling factors affecting the permeability evolution of coal under mining.The mining stress paths could be divided into two-stage,three-stage and four-stage,and the influence of gas pressure variation on coal permeability included the effective stress and adsorption-desorption.At present,the calculation methods of effective stress in the laboratory tests of permeability were not unified.The slippage effect was very significant in the permeability tests of low permeability coal,whereas,the influence scope of slippage effect and the Klinkenberg coefficient under different conditions were difficult to determine accurately.The research results can provide useful reference for laboratory determination of coal permeability.

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收稿日期： 2021-11-05
* 基金项目： 国家自然科学基金项目(52004081,51904092,52174175)；河南省高等学校重点科研项目(21A440005)；河南理工大学博士基金项目(B2020-34)
作者简介： 荣腾龙，博士，讲师，主要研究方向为深部煤体多场耦合及瓦斯渗流。
更新日期/Last Update: 2022-12-11