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[1]柳炳俊,孙锐,袁亮,等.厚壁菌代谢作用下对无烟煤柱孔隙特征及微观结构演化机理研究*[J].中国安全生产科学技术,2026,22(4):5-12.[doi:10.11731/j.issn.1673-193x.2026.04.001]
　LIU Bingjun,SUN Rui,YUAN Liang,et al.Research on the pore characteristics and microstructure evolution mechanism of anthracite pillar under the metabolic action of firmicutes[J].Journal of Safety Science and Technology,2026,22(4):5-12.[doi:10.11731/j.issn.1673-193x.2026.04.001]
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厚壁菌代谢作用下对无烟煤柱孔隙特征及微观结构演化机理研究*

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
22
期数:
2026年4期
页码:
5-12
栏目:
安全工程技术
出版日期:
2026-04-30

文章信息/Info

Title:
Research on the pore characteristics and microstructure evolution mechanism of anthracite pillar under the metabolic action of firmicutes
文章编号:
1673-193X(2026)-04-0005-08
作者:
柳炳俊; 孙锐; 袁亮; 薛生; 周天尧; 蒋祥卿; 陈瑞锋; 倪廉钦
（1.安徽理工大学 深部煤炭安全开采与环境保护全国重点实验室，安徽 淮南 232001；
2.安徽理工大学 安全科学与工程学院，安徽 淮南 232001；
3.安徽理工大学 煤炭无人化开采数智技术全国重点实验室，安徽 淮南 232001；
4.青海省能源发展（集团）有限责任公司，青海 西宁 810008；
5.晋能控股煤业集团轩岗煤电有限责任公司，山西 忻州 034100）
Author(s):
LIU Bingjun;  SUN Rui;  YUAN Liang;  XUE Sheng;  ZHOU Tianyao;  JIANG Xiangqing;  CHEN Ruifeng;  NI Lianqin
（1.National Key Laboratory of Safe Mining of Deep Coal and Environmental Protection,Anhui University of Science and Technology;
2.School of Safety Science and Engineering,Anhui University of Science and Technology;
3.Key Laboratory of Digital Intelligent Technology for Unmanned Coal Mining,Anhui University of Science and Technology;
4.Qinghai Energy Development (Group) Co.,Ltd.;
5.Xuangang Coal Electricity Co.,Ltd.,Jinneng Holding Coal Industry Group）
关键词:
无烟煤柱; 微生物厌氧降解; 孔隙结构; 官能团; 晶体结构
Keywords:
anthracite pillar;  anaerobic microbial degradation;  pore structure;  functional group;  crystal structure
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2026.04.001
文献标志码:
A
摘要:
为探究微生物厌氧降解无烟煤柱孔隙特征与微观结构演化规律，以不同预制钻孔孔径（2，4，6 mm）的标准煤柱（50 mm×100 mm）为研究对象，采用宏基因组测序、扫描电子显微镜（scanning electron microscope，SEM）、低场核磁共振（nuclear magnetic resonance,NMR）、傅里叶变换红外光谱（fourier transform infrared spectroscopy，FTIR）、X射线衍射（X-ray diffraction，XRD）等方法，研究微生物厌氧降解条件下微生物菌群组成以及煤柱孔隙结构、晶体结构及官能团变化。研究结果表明：45 d培养周期中，以厚壁菌门为代表的细菌为优势菌群(占总数的79.03%±2.66%)；辅助SEM观察生物降解煤样表面可见更明显的煤体褶皱，相比于原煤，煤样裂隙发育更明显；微生物促使孔隙由过渡孔向介孔及大孔演变，B-SH-3组介孔和大孔的PSD频率较原煤分别提高595.83%与169.47%，分形维数整体下降，孔隙结构趋于简单；微生物通过破坏脂肪族侧链、利用含氧官能团及降低芳香性程度修饰煤孔隙结构，使芳环聚合度DOC最大降低37.84%，同时芳香层间距(d002)略有增大。研究结果可为微生物强化煤层增透及提高储层透气性提供参考。
Abstract:
In order to explore the pore characteristics and microstructure evolution of microbial anaerobic degradation of anthracite pillars,standard coal pillars (50 mm×100 mm) with different pre-drilled hole diameters (2,4,and 6 mm) were used as the research object.Metagenomic sequencing,scanning electron microscopy (SEM),low-field nuclear magnetic resonance (NMR),fourier transform infrared spectroscopy (FTIR),X-ray diffraction (XRD) and other experimental methods were used to study the composition of microbial flora under anaerobic degradation conditions,as well as the changes of pore structure,crystal structure and functional group coal pillars.The results showed that during the 45-day culture cycle,the bacteria represented by firmicutes were the dominant flora (79.03%±2.66% of the total); auxiliary SEM electron microscopy showed that more obvious coal folds were observed on the surface of biodegradable coal samples.Compared with raw coal,the fracture development of coal samples was more obvious.Microorganism promoted the evolution of pores from transition pores to mesopores and macropores.The PSD (power spectral density) frequencies of mesopores and macropores in B-SH-3 group were 595.83% and 169.47% higher than those in raw coal,respectively.The fractal dimension decreased overall and the pore structure tended to be simplified.Microorganisms modified the pore structure of coal by destroying aliphatic side chains,using oxygen-containing functional groups and reducing the degree of aromaticity,so that the degree of aromatic ring polymerization (DOC,degree of condensation) was reduced by 37.84%,and the aromatic layer spacing (d002) was slightly increased.This study can provide new ideas for microbial enhanced coal seam permeability and improve reservoir permeability.

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备注/Memo

备注/Memo:
收稿日期： 2025-10-20
* 基金项目： 国家重点研发计划项目（2023YFC3009002）；青海省能源发展（集团）有限责任公司项目（2024-JS-09）；焦家寨煤矿松软厚煤层瓦斯增透技术项目（MYXGJJZKJSFW20240063）；深部煤矿采动响应与灾害防控国家重点实验室开放基金资助项目（SKLMRDPC23KF18）
作者简介： 柳炳俊，博士，教授级高级工程师，主要研究方向为煤矿瓦斯治理与利用，煤层气生物工程等。
通信作者： 薛生，博士，教授，主要研究方向为煤矿瓦斯治理与灾害防控。
更新日期/Last Update: 2026-04-29