Article(id=1156986629895316106, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156963927277003616, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2402977, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1713801600000, receivedDateStr=2024-04-23, revisedDate=1727625600000, revisedDateStr=2024-09-30, acceptedDate=null, acceptedDateStr=null, onlineDate=1753776708339, onlineDateStr=2025-07-29, pubDate=1742227200000, pubDateStr=2025-03-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753776708339, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753776708339, creator=13701087609, updateTime=1753776708339, updator=13701087609, issue=Issue{id=1156963927277003616, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='8', pageStart='3079', pageEnd='3528', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753771295613, creator=13701087609, updateTime=1753777038876, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1156988016305726153, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156963927277003616, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1156988016305726154, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156963927277003616, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=3513, endPage=3520, ext={EN=ArticleExt(id=1156986631795335854, articleId=1156986629895316106, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Analysis of Sealing Depth of Long Borehole in Bedding Gas Drainage : Taking the Guizhou Qianbei Mining Area Extraction Project as an Example, columnId=1156986623452865092, journalTitle=Science Technology and Engineering, columnName=Environmental and Safe Science, runingTitle=null, highlight=null, articleAbstract=
In order to study the reasonable sealing length of bedding gas drainage boreholes, based on the gas-air dual gas and the negative pressure attenuation effect of boreholes, a three-dimensional borehole drainage model was established by finite element simulation software to monitor and analyzed the gas pressure of coal seam in the sealing section. Through the field test of 20915 haulage roadway, the gas drainage effects of different sealing lengths were investigated. The results show that under the negative pressure attenuation effect, the negative pressure of borehole drainage is exponential function distribution, and the reduction of gas pressure in coal seams at different positions of borehole is different, and the closer to the sealing position, the smaller the reduction of gas pressure. The peak gas pressure in the sealing section is proportional to the sealing length. According to the field test, the gas drainage concentration decreases to about${10}\%$after 130 days when the sealing distance is${10}\mathrm{\;m}$. The sealing length of${20}\mathrm{\;m}$maintains at about${30}\%$, and the extraction concentration of the borehole with sealing length of${30}\mathrm{\;m}$maintains at above${60}\%$after 130 days.
, correspAuthors=Hua-ying LIN, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Jin-lei FU, Hua-ying LIN, Xian-wei HENG, Shu-jin ZHANG, Meng-lei CHEN), CN=ArticleExt(id=1156986767518818727, articleId=1156986629895316106, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=顺层瓦斯抽采长钻孔封孔深度分析:以贵州黔北矿区抽采工程为例, columnId=1154014167221653566, journalTitle=科学技术与工程, columnName=环境科学、安全科学, runingTitle=null, highlight=null, articleAbstract=
为研究顺层瓦斯抽采钻孔合理封孔长度,基于瓦斯-空气双气体模型,采用有限元模拟软件建立三维钻孔抽采模型,对封孔段煤层瓦斯压力进行监测分析,通 20915 运输巷现场试验,考察不同封孔长度瓦斯抽采效果。结果表明:受到负压衰减效应,钻孔抽采负压呈指数函数分布,并且钻孔不同位置煤层瓦斯压力减少幅度不同,越靠近封孔位置瓦斯压力减小幅度越小;封孔段瓦斯压力峰值与封孔长度成正相关;根据现场测试,封孔距离为${10}\mathrm{\;m}$瓦斯抽采浓度在${130}\mathrm{\;d}$后减小到约${10}\%$;而封孔长度为${20}\mathrm{\;m}$将保持在约${30}\%$,封孔${30}\mathrm{\;m}$的钻孔${130}\mathrm{\;d}$后抽采浓度保持在${60}\%$以上。
, correspAuthors=林华颖, authorNote=null, correspAuthorsNote=
*林华颖(1995—),男,汉族,贵州铜仁人,硕士,工程师。研究方向:煤矿瓦斯灾害预测与防治。E-mail: eternity37326@gmail.com。
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付金磊(1994—),男,汉族,黑龙江伊春人,硕士,工程师。研究方向:煤矿瓦斯灾害预测与防治。E-mail: 1225118190@qq.com。
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付金磊(1994—),男,汉族,黑龙江伊春人,硕士,工程师。研究方向:煤矿瓦斯灾害预测与防治。E-mail: 1225118190@qq.com。
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付金磊(1994—),男,汉族,黑龙江伊春人,硕士,工程师。研究方向:煤矿瓦斯灾害预测与防治。E-mail: 1225118190@qq.com。
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2 贵州省煤矿设计研究院有限公司 贵阳 550025)])], figs=[ArticleFig(id=1156986783176155943, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=EN, label=Fig. 1, caption=
Extraction model, figureFileSmall=xOLVV5S1cfjrdUgAqeGHaw==, figureFileBig=6gNAHcv8QxWSo1qSUyCFFA==, tableContent=null), ArticleFig(id=1156986783243264810, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=CN, label=图1, caption=
抽采模型, figureFileSmall=xOLVV5S1cfjrdUgAqeGHaw==, figureFileBig=6gNAHcv8QxWSo1qSUyCFFA==, tableContent=null), ArticleFig(id=1156986783301985069, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=EN, label=Fig. 2, caption=
Drilling and extraction negative pressure on the 120th day, figureFileSmall=xts7yNpOvSlzcqm6P+t8Kw==, figureFileBig=WKiIxgSjFyoa5AyAsZQqJQ==, tableContent=null), ArticleFig(id=1156986783369093936, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=CN, label=图2, caption=
第 120 天钻孔抽采负压, figureFileSmall=xts7yNpOvSlzcqm6P+t8Kw==, figureFileBig=WKiIxgSjFyoa5AyAsZQqJQ==, tableContent=null), ArticleFig(id=1156986783432008499, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=EN, label=Fig. 3, caption=
Gas pressure curves of coal seams at different measurement points, figureFileSmall=Wn15CrCcPVk3mh9vFBH4WQ==, figureFileBig=TksxkOX0nku6qcXoRiePGg==, tableContent=null), ArticleFig(id=1156986783503311670, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=CN, label=图3, caption=
不同测点煤层瓦斯压力曲线, figureFileSmall=Wn15CrCcPVk3mh9vFBH4WQ==, figureFileBig=TksxkOX0nku6qcXoRiePGg==, tableContent=null), ArticleFig(id=1156986783557837625, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=EN, label=Fig. 4, caption=
Gas pressure curves of coal seams with different sealing distances, figureFileSmall=pA93wDDHC+JLLlD+ScN4Lw==, figureFileBig=1ZYeFSqhJ1H7LR/2t5yQgQ==, tableContent=null), ArticleFig(id=1156986783612363580, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=CN, label=图4, caption=
不同封孔距离煤层瓦斯压力曲线, figureFileSmall=pA93wDDHC+JLLlD+ScN4Lw==, figureFileBig=1ZYeFSqhJ1H7LR/2t5yQgQ==, tableContent=null), ArticleFig(id=1156986783704638270, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=EN, label=Fig. 5, caption=
Influence of initial gas pressure in coal seams on the length of sealing holes, figureFileSmall=1zdGACpWvmR/AVUf+8cXNg==, figureFileBig=6IcRyGVuju/JIeFP20gmJQ==, tableContent=null), ArticleFig(id=1156986783771747137, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=CN, label=图5, caption=
煤层初始瓦斯压力对封孔长度影响, figureFileSmall=1zdGACpWvmR/AVUf+8cXNg==, figureFileBig=6IcRyGVuju/JIeFP20gmJQ==, tableContent=null), ArticleFig(id=1156986783830467396, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=EN, label=Fig. 6, caption=
Gas sealing distance with different permeability, figureFileSmall=nLHxBi7k2hQjZf8TPOwKmg==, figureFileBig=kHeUxPI6FiiYVL08acfM2Q==, tableContent=null), ArticleFig(id=1156986783872410438, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=CN, label=图6, caption=
不同渗透率瓦斯封孔距离, figureFileSmall=nLHxBi7k2hQjZf8TPOwKmg==, figureFileBig=kHeUxPI6FiiYVL08acfM2Q==, tableContent=null), ArticleFig(id=1156986783922742089, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=EN, label=Fig. 7, caption=
Drilling layout diagram, figureFileSmall=22mGR7Zn646llPKXG+ZQrQ==, figureFileBig=jKIOhiYPDBLH1mJ7mHqG/w==, tableContent=null), ArticleFig(id=1156986784061154124, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=CN, label=图7, caption=
钻孔布置图, figureFileSmall=22mGR7Zn646llPKXG+ZQrQ==, figureFileBig=jKIOhiYPDBLH1mJ7mHqG/w==, tableContent=null), ArticleFig(id=1156986784132457293, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=EN, label=Fig. 8, caption=
Gas concentration curve over time, figureFileSmall=gcK37OMsU+zIyElcGfvhdA==, figureFileBig=NRz43qwhcp0pF9vAYGW4dg==, tableContent=null), ArticleFig(id=1156986784262480719, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=CN, label=图8, caption=
瓦斯浓度随时间变化曲线, figureFileSmall=gcK37OMsU+zIyElcGfvhdA==, figureFileBig=NRz43qwhcp0pF9vAYGW4dg==, tableContent=null), ArticleFig(id=1156986784312812368, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=EN, label=Table 1, caption=
Gas extraction model parameters, figureFileSmall=null, figureFileBig=null, tableContent=
| 输入参数 | 数值 |
| 初始孔隙率 $/\%$ | 3 |
| 煤密度/$\left({\mathrm{{kg}}\cdot {\mathrm{m}}^{-3}}\right)$ | 1400 |
| 煤的泊松比 | 0.29 |
| 煤弹性模量/MPa | 2 713 |
| 初始瓦斯扩散系数 $/\left({{\mathrm{m}}^{2}\cdot {\mathrm{s}}^{-1}}\right)$ | ${5.48}\times {10}^{-{12}}$ |
| 吸附常数 $b/{\mathrm{{MPa}}}^{-1}$ | 2 |
| 初始渗透率 $/{\mathrm{m}}^{2}$ | ${1.299}\times {10}^{-{17}}$ |
| 瓦斯动力黏度 $/\left({\mathrm{{Pa}}\cdot {\mathrm{s}}^{-1}}\right)$ | ${1.05}\times {10}^{-6}$ |
| 初始瓦斯压力/MPa | 1.4 |
| 煤层温度 $/\mathrm{K}$ | 293.15 |
| 吸附常数 $a/\left({{\mathrm{m}}^{3}\cdot {\mathrm{t}}^{-1}}\right)$ | 35 |
| 煤体骨架弹性模量/MPa | 5139 |
), ArticleFig(id=1156986784405087058, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=CN, label=表1, caption=
瓦斯抽采模型参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 输入参数 | 数值 |
| 初始孔隙率 $/\%$ | 3 |
| 煤密度/$\left({\mathrm{{kg}}\cdot {\mathrm{m}}^{-3}}\right)$ | 1400 |
| 煤的泊松比 | 0.29 |
| 煤弹性模量/MPa | 2 713 |
| 初始瓦斯扩散系数 $/\left({{\mathrm{m}}^{2}\cdot {\mathrm{s}}^{-1}}\right)$ | ${5.48}\times {10}^{-{12}}$ |
| 吸附常数 $b/{\mathrm{{MPa}}}^{-1}$ | 2 |
| 初始渗透率 $/{\mathrm{m}}^{2}$ | ${1.299}\times {10}^{-{17}}$ |
| 瓦斯动力黏度 $/\left({\mathrm{{Pa}}\cdot {\mathrm{s}}^{-1}}\right)$ | ${1.05}\times {10}^{-6}$ |
| 初始瓦斯压力/MPa | 1.4 |
| 煤层温度 $/\mathrm{K}$ | 293.15 |
| 吸附常数 $a/\left({{\mathrm{m}}^{3}\cdot {\mathrm{t}}^{-1}}\right)$ | 35 |
| 煤体骨架弹性模量/MPa | 5139 |
), ArticleFig(id=1156986784463807315, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=EN, label=Table 2, caption=
Drilling parameters, figureFileSmall=null, figureFileBig=null, tableContent=
| 钻孔 编号 | 钻孔孔 径/mm | 方位/(°) | 倾角 $/\left({}^{\circ }\right)$ | 钻孔长 度 $/\mathrm{m}$ | 封孔长 度 $/\mathrm{m}$ |
| 1# | 94 | 205 | 12 | 106 | 30 |
| 2# | 94 | 205 | 12 | 90 | 20 |
| 3# | 94 | 205 | 12 | 106 | 10 |
), ArticleFig(id=1156986784539304789, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629895316106, language=CN, label=表2, caption=
钻孔参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 钻孔 编号 | 钻孔孔 径/mm | 方位/(°) | 倾角 $/\left({}^{\circ }\right)$ | 钻孔长 度 $/\mathrm{m}$ | 封孔长 度 $/\mathrm{m}$ |
| 1# | 94 | 205 | 12 | 106 | 30 |
| 2# | 94 | 205 | 12 | 90 | 20 |
| 3# | 94 | 205 | 12 | 106 | 10 |
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