Article(id=1322904657391137708, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322844250153275555, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1718208000000, receivedDateStr=2024-06-13, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793334648663, onlineDateStr=2026-10-30, pubDate=1748102400000, pubDateStr=2025-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793334648663, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793334648663, creator=13701087609, updateTime=1793334648663, updator=13701087609, issue=Issue{id=1322844250153275555, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='5', pageStart='1', pageEnd='288', issueExtLink='null', onlineDate='null', pubDate='1748102400000', pubDateStr='2025-05-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793320246494, creator='13701087609', updateTime=1793320246494, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=132, endPage=141, ext={EN=ArticleExt(id=1322904659177911213, articleId=1322904657391137708, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on Reasonable Parameters of Blasting Along Hard Roof in Gob-Side Roadway, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The stress concentration of the roof and the solid coal side will be caused by the untimely collapse of the lateral hard roof in the gob-side roadway, which poses a major threat to the safety of the working face, and the blasting method is often used to weaken it. Taking the gob-side roadway of a working face as the background, the relationships among blasting angle, blasting height and pressure relief effect of the hard roof in the gob-side roadway were studied by means of theoretical analysis, numerical simulation and field practice. The results show that the fracture position on the goaf side is the most conducive to maintaining the stability of roadway surrounding rock during the blasting of gob-side roadway. The blasting angle should be higher than the breaking angle formed when the key stratum is broken, and the roof pressure above the coal pillar after blasting should be avoided. In the range of reasonable blasting angle, with the increase of blasting angle, the pressure relief effect is improved. When the blasting height reaches the top of the combined sub-key stratum, a better pressure relief effect can be achieved. The field engineering practice shows that under the condition of reasonable parameters, the implementation of strike blasting on the roof of gob-side roadway can effectively reduce the impact risk and ensure the safe production of working face. The research results can provide theoretical and engineering basis for mines with similar conditions.
, authors=Xiufeng ZHANG
1, Zonglong MU
2, 3, Hao WANG
1, Chunlong JIANG
3, Yang CHEN
1, Jiaxin ZHUANG
3, Cao MAN
1, Jinglong CAO
3, authorsList=Xiufeng ZHANG, Zonglong MU, Hao WANG, Chunlong JIANG, Yang CHEN, Jiaxin ZHUANG, Cao MAN, Jinglong CAO, authorCompany=null, correspAuthors=Zonglong MU, 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, fund=null), CN=ArticleExt(id=1322904670448005129, articleId=1322904657391137708, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=沿空巷坚硬顶板走向爆破合理参数研究, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=
沿空巷侧向坚硬顶板垮落不及时会引起顶板和实体煤侧产生应力集中,对工作面安全构成重大威胁,常采用爆破手段对其进行弱化。以某工作面沿空巷为背景,采用理论分析、数值模拟和现场实践的方法,研究了沿空巷坚硬顶板走向爆破角度、爆破高度与卸压效果之间的关系。结果表明:沿空巷爆破时,断裂位置沿采空区侧最有利于维持巷道围岩稳定性,爆破角度应高于关键层运移破断时形成的破断角,同时避免爆破后顶板压在煤柱上方;在合理爆破角度范围内,随着爆破角度的增大,卸压效果有所提高;爆破高度达到组合亚关键层顶部时,能达到较好的卸压效果。现场工程实践表明,在参数选择合理的情况下,对沿空巷顶板实施走向爆破可以有效降低冲击危险,确保工作面安全生产。研究成果可为类似条件的矿井提供理论及工程依据。
, authors=张修峰
1, 牟宗龙
2, 3, 王浩
1, 蒋春龙
3, 陈洋
1, 庄佳鑫
3, 满操
1, 曹京龙
3, authorsList=张修峰, 牟宗龙, 王浩, 蒋春龙, 陈洋, 庄佳鑫, 满操, 曹京龙, authorCompany=null, correspAuthors=牟宗龙, authorNote=
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1, address=
1.Shandong Energy Group Co., Ltd., Jinan, Shandong 250014, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322904672750678039, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904672524185620, language=CN, stringName=张修峰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.山东能源集团有限公司,山东 济南 250014, bio={"content":"
张修峰(1970—),男,山东菏泽人,正高级工程师,从事冲击地压防治技术管理与研究工作。E-mail:zhangxiufengsn@163.com
"}, bioImg=null, bioContent=
张修峰(1970—),男,山东菏泽人,正高级工程师,从事冲击地压防治技术管理与研究工作。E-mail:zhangxiufengsn@163.com
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1.山东能源集团有限公司,山东 济南 250014)])]), Author(id=1322904672817786905, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=muzonglong@163.com, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1322904672914255900, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904672817786905, language=EN, stringName=Zonglong MU, firstName=Zonglong, middleName=null, lastName=MU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.Jiangsu Engineering Laboratory of Mine Earthquake Monitoring and Prevention, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
3.School of Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322904672993947677, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904672817786905, language=CN, stringName=牟宗龙, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.中国矿业大学 江苏省矿山地震监测工程实验室,江苏 徐州市 221116
3.中国矿业大学 矿业工程学院,江苏 徐州市 221116, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322904670770966541, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, xref=2., ext=[AuthorCompanyExt(id=1322904670783549454, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904670770966541, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Jiangsu Engineering Laboratory of Mine Earthquake Monitoring and Prevention, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China), AuthorCompanyExt(id=1322904670796132367, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904670770966541, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.中国矿业大学 江苏省矿山地震监测工程实验室,江苏 徐州市 221116)]), AuthorCompany(id=1322904672440299536, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, xref=3., ext=[AuthorCompanyExt(id=1322904672452882449, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904672440299536, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.School of Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China), AuthorCompanyExt(id=1322904672457076754, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904672440299536, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.中国矿业大学 矿业工程学院,江苏 徐州市 221116)])]), Author(id=1322904673165914143, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322904673241411617, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904673165914143, language=EN, stringName=Hao WANG, firstName=Hao, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.Shandong Energy Group Co., Ltd., Jinan, Shandong 250014, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322904673329492002, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904673165914143, language=CN, stringName=王浩, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.山东能源集团有限公司,山东 济南 250014, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322904670691274762, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, xref=1., ext=[AuthorCompanyExt(id=1322904670699663371, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904670691274762, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Shandong Energy Group Co., Ltd., Jinan, Shandong 250014, China), AuthorCompanyExt(id=1322904670703857676, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904670691274762, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.山东能源集团有限公司,山东 济南 250014)])]), Author(id=1322904673413378084, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322904673514041382, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904673413378084, language=EN, stringName=Chunlong JIANG, firstName=Chunlong, middleName=null, lastName=JIANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.School of Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322904673576955943, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904673413378084, language=CN, stringName=蒋春龙, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.中国矿业大学 矿业工程学院,江苏 徐州市 221116, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322904672440299536, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, xref=3., ext=[AuthorCompanyExt(id=1322904672452882449, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904672440299536, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.School of Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China), AuthorCompanyExt(id=1322904672457076754, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904672440299536, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.中国矿业大学 矿业工程学院,江苏 徐州市 221116)])]), Author(id=1322904673677619241, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322904673946054699, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904673677619241, language=EN, stringName=Yang CHEN, firstName=Yang, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.Shandong Energy Group Co., Ltd., Jinan, Shandong 250014, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322904674046717996, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904673677619241, language=CN, stringName=陈洋, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.山东能源集团有限公司,山东 济南 250014, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322904670691274762, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, xref=1., ext=[AuthorCompanyExt(id=1322904670699663371, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904670691274762, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Shandong Energy Group Co., Ltd., Jinan, Shandong 250014, China), AuthorCompanyExt(id=1322904670703857676, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904670691274762, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.山东能源集团有限公司,山东 济南 250014)])]), Author(id=1322904674130604079, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322904674428399665, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904674130604079, language=EN, stringName=Jiaxin ZHUANG, firstName=Jiaxin, middleName=null, lastName=ZHUANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.School of Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322904674839441458, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904674130604079, language=CN, stringName=庄佳鑫, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.中国矿业大学 矿业工程学院,江苏 徐州市 221116, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322904672440299536, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, xref=3., ext=[AuthorCompanyExt(id=1322904672452882449, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904672440299536, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.School of Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China), AuthorCompanyExt(id=1322904672457076754, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, companyId=1322904672440299536, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.中国矿业大学 矿业工程学院,江苏 徐州市 221116)])]), Author(id=1322904675279843380, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, orderNo=6, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322904676890456118, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904675279843380, language=EN, stringName=Cao MAN, firstName=Cao, middleName=null, lastName=MAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
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1.山东能源集团有限公司,山东 济南 250014)])]), Author(id=1322904677033062457, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, orderNo=7, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322904677112754235, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, authorId=1322904677033062457, language=EN, stringName=Jinglong CAO, firstName=Jinglong, middleName=null, lastName=CAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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6305 working face plan, figureFileSmall=6xlSCUijFf+eDLtampVcIg==, figureFileBig=X/GszmaAn8aBTOiYxhHziQ==, tableContent=null), ArticleFig(id=1322904678387822666, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图1, caption=
6305工作面平面图, figureFileSmall=6xlSCUijFf+eDLtampVcIg==, figureFileBig=X/GszmaAn8aBTOiYxhHziQ==, tableContent=null), ArticleFig(id=1322904678559789131, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.2, caption=
Histogram of L-6 borehole, figureFileSmall=HQ24mhz0BAlEUVunHdqkfA==, figureFileBig=ZuUbUTDwpPdjIbSJfF9DAw==, tableContent=null), ArticleFig(id=1322904678626897996, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图2, caption=
L-6钻孔柱状图, figureFileSmall=HQ24mhz0BAlEUVunHdqkfA==, figureFileBig=ZuUbUTDwpPdjIbSJfF9DAw==, tableContent=null), ArticleFig(id=1322904678694006861, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.3, caption=
Mechanical model of solid coal side fracture, figureFileSmall=ea3FMAxV/D9UxD8yEhy3Zw==, figureFileBig=LXbUP/zmPMulZmNEt8oEmA==, tableContent=null), ArticleFig(id=1322904678773698638, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图3, caption=
实体煤侧断裂时的力学模型, figureFileSmall=ea3FMAxV/D9UxD8yEhy3Zw==, figureFileBig=LXbUP/zmPMulZmNEt8oEmA==, tableContent=null), ArticleFig(id=1322904678836613199, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.4, caption=
Mechanical model of fracture above roadway, figureFileSmall=f75d6lc40KPDpYxkvscr6g==, figureFileBig=c/RuLafwlZhuEFSyTYSzmg==, tableContent=null), ArticleFig(id=1322904678899527760, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图4, caption=
巷道上方断裂时的力学模型, figureFileSmall=f75d6lc40KPDpYxkvscr6g==, figureFileBig=c/RuLafwlZhuEFSyTYSzmg==, tableContent=null), ArticleFig(id=1322904678983413841, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.5, caption=
The mechanical model of goad side fracture, figureFileSmall=nm/sQ/lDNttcB5G8HCgksg==, figureFileBig=nhjpL97jPWsF94fbc5358Q==, tableContent=null), ArticleFig(id=1322904679138603090, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图5, caption=
采空区侧断裂时的力学模型, figureFileSmall=nm/sQ/lDNttcB5G8HCgksg==, figureFileBig=nhjpL97jPWsF94fbc5358Q==, tableContent=null), ArticleFig(id=1322904679214100563, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.6, caption=
Illustration of blasting angle range, figureFileSmall=35I633A+2BoxFDqGnLDDpA==, figureFileBig=LhXBIKCdUSj5yL9LQwAe4A==, tableContent=null), ArticleFig(id=1322904679268626516, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图6, caption=
爆破角度范围示意, figureFileSmall=35I633A+2BoxFDqGnLDDpA==, figureFileBig=LhXBIKCdUSj5yL9LQwAe4A==, tableContent=null), ArticleFig(id=1322904679344123989, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.7, caption=
Model of numerical simulation, figureFileSmall=yeAfyrk+C5pDGVyBeGyI1w==, figureFileBig=XHYU2B5+MezRlxD3Su7bfw==, tableContent=null), ArticleFig(id=1322904679411232854, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图7, caption=
数值模拟模型, figureFileSmall=yeAfyrk+C5pDGVyBeGyI1w==, figureFileBig=XHYU2B5+MezRlxD3Su7bfw==, tableContent=null), ArticleFig(id=1322904679478341719, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.8, caption=
Vertical stress cloud diagrams under different blasting heights, figureFileSmall=pJVlkWAGx3Pn6NecIVcRgg==, figureFileBig=vorNSpj8N4WLtYVrLgUCwA==, tableContent=null), ArticleFig(id=1322904679541256280, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图8, caption=
不同爆破高度下的垂直应力云图, figureFileSmall=pJVlkWAGx3Pn6NecIVcRgg==, figureFileBig=vorNSpj8N4WLtYVrLgUCwA==, tableContent=null), ArticleFig(id=1322904679604170841, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.9, caption=
Vertical stress distribution of solid coal side under different blasting heights, figureFileSmall=BtUyrTyG0qdhJsKGHRahUw==, figureFileBig=MBxPCTEDZSFLx4ghqWrSDA==, tableContent=null), ArticleFig(id=1322904679667085402, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图9, caption=
不同爆破高度下实体煤侧垂直应力分布, figureFileSmall=BtUyrTyG0qdhJsKGHRahUw==, figureFileBig=MBxPCTEDZSFLx4ghqWrSDA==, tableContent=null), ArticleFig(id=1322904681328029787, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.10, caption=
Vertical stress cloud diagrams under different blasting angles, figureFileSmall=Bsbm+wM84u393d9vpWuW8Q==, figureFileBig=pkre04EJ/LIJqheK2ttdIQ==, tableContent=null), ArticleFig(id=1322904681403527260, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图10, caption=
不同爆破角度下的垂直应力云图, figureFileSmall=Bsbm+wM84u393d9vpWuW8Q==, figureFileBig=pkre04EJ/LIJqheK2ttdIQ==, tableContent=null), ArticleFig(id=1322904681479024733, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.11, caption=
Stress distribution of coal under different blasting angles, figureFileSmall=osPW4BSX2f67+BWXKtJVeg==, figureFileBig=CSAmHtDQJV5cn6hhgPh9uA==, tableContent=null), ArticleFig(id=1322904681550327902, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图11, caption=
不同爆破角度下的煤体应力分布情况, figureFileSmall=osPW4BSX2f67+BWXKtJVeg==, figureFileBig=CSAmHtDQJV5cn6hhgPh9uA==, tableContent=null), ArticleFig(id=1322904681621631071, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.12, caption=
Vertical stress distribution at different distances from gobside roadway before and after blasting, figureFileSmall=ng7JcouAN3Psaj5hwjPJOQ==, figureFileBig=QgYP7nStdd28KH/IbJWAvg==, tableContent=null), ArticleFig(id=1322904681688739936, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图12, caption=
爆破前后距沿空巷不同距离处的垂直应力分布, figureFileSmall=ng7JcouAN3Psaj5hwjPJOQ==, figureFileBig=QgYP7nStdd28KH/IbJWAvg==, tableContent=null), ArticleFig(id=1322904681755848801, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.13, caption=
Blasting profile along the goaf roadway towards gob side, figureFileSmall=HGa6p3jW6dC2r0rwhB5S6g==, figureFileBig=SgsYWr8SQfDF/muqYFbmJw==, tableContent=null), ArticleFig(id=1322904681848123490, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图13, caption=
沿空巷朝向采空区侧爆破剖面, figureFileSmall=HGa6p3jW6dC2r0rwhB5S6g==, figureFileBig=SgsYWr8SQfDF/muqYFbmJw==, tableContent=null), ArticleFig(id=1322904681911038051, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.14, caption=
Monitoring hole locations, figureFileSmall=Te++8ymUjinlPnMv+tKO3Q==, figureFileBig=I0+qB3GI2Yiy4fznJM9Akw==, tableContent=null), ArticleFig(id=1322904681978146916, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图14, caption=
监测孔位置, figureFileSmall=Te++8ymUjinlPnMv+tKO3Q==, figureFileBig=I0+qB3GI2Yiy4fznJM9Akw==, tableContent=null), ArticleFig(id=1322904682041061477, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.15, caption=
Comparison of drilling cuttings at 20−57.5 m from the stop line, figureFileSmall=b1vhxv2/wN5Kn1F44fIrHg==, figureFileBig=jApnWgytH6n6NvxjkzV+JQ==, tableContent=null), ArticleFig(id=1322904682120753254, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图15, caption=
距停采线20~57.5 m处的钻屑量对比, figureFileSmall=b1vhxv2/wN5Kn1F44fIrHg==, figureFileBig=jApnWgytH6n6NvxjkzV+JQ==, tableContent=null), ArticleFig(id=1322904682192056423, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.16, caption=
Comparison of drilling cuttings at 70−112.5 m from the stop line, figureFileSmall=ibI+55FkkS8urvCLmWDsQg==, figureFileBig=w0YrbxBgOwTGLa+lAx3AmQ==, tableContent=null), ArticleFig(id=1322904682259165288, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图16, caption=
距停采线70~112.5 m处的钻屑量对比, figureFileSmall=ibI+55FkkS8urvCLmWDsQg==, figureFileBig=w0YrbxBgOwTGLa+lAx3AmQ==, tableContent=null), ArticleFig(id=1322904682322079849, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Fig.17, caption=
Microseismic frequency and total energy in test area 1 and test area 2, figureFileSmall=Rrb4I4lB1ovYOh4qDqvoTA==, figureFileBig=3AfQatJ3h7k4cmNiXgCb3w==, tableContent=null), ArticleFig(id=1322904682401771626, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=图17, caption=
试验1区及试验2区的微震频次及总能量, figureFileSmall=Rrb4I4lB1ovYOh4qDqvoTA==, figureFileBig=3AfQatJ3h7k4cmNiXgCb3w==, tableContent=null), ArticleFig(id=1322904682485657707, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Table 1, caption=
Mechanical parameters of 6305 workface roof rock
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩层名称 | 厚度/m | 抗拉强度/MPa | 抗压强度/MPa | 弹性模量/GPa |
|---|
| 细粒砂岩 | 1.55 | 3.3 | 37 | 5.6 |
| 砂质泥岩 | 16.37 | 2.5 | 30 | 5.5 |
| 粉砂岩 | 18.09 | 3.5 | 40 | 5.7 |
| 细粒砂岩 | 8.16 | 3.2 | 37 | 5.6 |
| 砂质泥岩 | 1.82 | 2.5 | 30 | 5.5 |
| 泥岩 | 0.50 | 2.0 | 28 | 5.0 |
| 3#煤 | 9.51 | 1.0 | 12 | 4.8 |
| 粉砂岩 | 5.85 | 3.5 | 40 | 5.7 |
), ArticleFig(id=1322904682569543788, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=表1, caption=
6305工作面顶板岩石力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩层名称 | 厚度/m | 抗拉强度/MPa | 抗压强度/MPa | 弹性模量/GPa |
|---|
| 细粒砂岩 | 1.55 | 3.3 | 37 | 5.6 |
| 砂质泥岩 | 16.37 | 2.5 | 30 | 5.5 |
| 粉砂岩 | 18.09 | 3.5 | 40 | 5.7 |
| 细粒砂岩 | 8.16 | 3.2 | 37 | 5.6 |
| 砂质泥岩 | 1.82 | 2.5 | 30 | 5.5 |
| 泥岩 | 0.50 | 2.0 | 28 | 5.0 |
| 3#煤 | 9.51 | 1.0 | 12 | 4.8 |
| 粉砂岩 | 5.85 | 3.5 | 40 | 5.7 |
), ArticleFig(id=1322904682636652653, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=EN, label=Table 2, caption=
Roof key layer judgment of 6305 workface
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | 厚度/m | 与煤层距离/m | 关键层类型 |
|---|
| 砂质泥岩 | 16.37 | 10.48 | 组合亚关键层 |
| 粉砂岩 | 18.09 | 10.48 | 组合亚关键层 |
), ArticleFig(id=1322904682720538734, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322904657391137708, language=CN, label=表2, caption=
6305工作面顶板关键层判别
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | 厚度/m | 与煤层距离/m | 关键层类型 |
|---|
| 砂质泥岩 | 16.37 | 10.48 | 组合亚关键层 |
| 粉砂岩 | 18.09 | 10.48 | 组合亚关键层 |
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