Article(id=1242132987781919122, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242132974196564162, articleNumber=null, orderNo=13, doi=10.3981/j.issn.1000-7857.2015.01.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1401897600000, receivedDateStr=2014-06-05, revisedDate=1411833600000, revisedDateStr=2014-09-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1422861959993, onlineDateStr=2015-02-02, pubDate=1421078400000, pubDateStr=2015-01-13, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1422861959993, onlineIssueDateStr=2015-02-02, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774077181998, creator=sys-migrate, updateTime=1774077181998, updator=sys-migrate, issue=Issue{id=1242132974196564162, tenantId=1146029695717560320, journalId=1146031591421210625, year='2015', volume='33', issue='1', pageStart='1', pageEnd='128', issueExtLink='null', onlineDate='null', pubDate='1421078400000', pubDateStr='2015-01-13', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774077178760, creator='sys-migrate', updateTime=1774077178760, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=70, endPage=74, ext={EN=ArticleExt(id=1242132991791669528, articleId=1242132987781919122, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Characteristics of mechanical response of surrounding rocks in deep hole pillarless retreating mining at deep stope, columnId=null, journalTitle=Science & Technology Review, columnName=null, runingTitle=null, highlight=null, articleAbstract=A three-dimensional numerical analysis model was developed using the complex geological modeling techniques, Surpac and FLAC3D . The initial geo-stress field was obtained by using multiple linear regression method, and the distribution law of in-situ geo- stress field around the stope was obtained by geometric cross- scale model- building technology. On the basis of that, the characteristics of mechanical response of surrounding rocks in deep hole pillarless retreating mining at deep stope were studied. The results showed that: 1) The maximum tensile stress of 0.40 MPa and the maximum horizontal displacement of 28.2 mm were observed at south side of the stope near the Y -central axis. The maximum vertical stress of surrounding rocks was found to be significant at stope roof near the Y -central axis with the maximum value of 27.43 mm. Plastic failure occurred in these corresponding regions. 2) Field monitoring and security measures need to be strengthened near the Y -central axis. The hole net parameter needs to be adjusted in eastward lateral caving due to accumulated damage of blasting. In the south side of the stope, it is necessary to increase presplit holes and reduce single hole explosive load and the initiation dose of each segment to prevent the overbreak of the pillar to affect the stability of the entire extent., authors=LUO Zhouquan1 , CHEN Jie1,2 , XIE Chengyu1 , WANG Wei1 , QIN Yaguang1 , CHEN Yijun1 , authorsList=LUO Zhouquan, CHEN Jie, XIE Chengyu, WANG Wei, QIN Yaguang, CHEN Yijun, authorCompany=1. School of resources and Safety engineering, Central South University, Changsha 410083, China;3D 组合建模技术建立深部矿区三维数值分析模型,基于多元线性回归分析方法模拟反演出深部区域现存地应力场,采用模型重构方法获取了采场及周边的局部地应力分布规律.研究某采场利用无底柱深孔后退式采矿方法开采的围岩力学响应特征,结果表明:1)采场围岩的最大拉应力为0.40 MPa,最大水平位移为28.2 mm,出现在采场 Y 向中轴线附近南帮位置,最大垂直位移为27.43 mm,出现在 Y 向中轴线附近顶板位置,采场围岩发生了一定范围的塑性破坏;2)采场 Y 向中轴线附近位置顶板位移较大,应加强地压监测;采场东头由于受到爆破积累损伤的影响,在对东头侧向崩矿时,要适当调整孔网参数;采场南帮临近区域要增加预裂孔、减小单孔装药量及每段起爆药量,防止爆破超挖矿柱,影响整个盘区的稳定., authors=罗周全1 , 陈杰1,2 , 谢承煜1 , 汪伟1 , 秦亚光1 , 陈轶俊1 , authorsList=罗周全, 陈杰, 谢承煜, 汪伟, 秦亚光, 陈轶俊, authorCompany=1. 中南大学资源与安全工程学院, 长沙410083;
科技导报
| 研究论文 2015, 33(1): 70-74
深部采场无底柱深孔后退式开采围岩力学响应特征
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罗周全1 , 陈杰1,2 , 谢承煜1 , 汪伟1 , 秦亚光1 , 陈轶俊1
作者信息
1. 中南大学资源与安全工程学院, 长沙410083;
Characteristics of mechanical response of surrounding rocks in deep hole pillarless retreating mining at deep stope
Affiliations
出版时间: 2015-01-13
doi: 10.3981/j.issn.1000-7857.2015.01.012
文章导航
运用Surpac 和FLAC3D 组合建模技术建立深部矿区三维数值分析模型,基于多元线性回归分析方法模拟反演出深部区域现存地应力场,采用模型重构方法获取了采场及周边的局部地应力分布规律.研究某采场利用无底柱深孔后退式采矿方法开采的围岩力学响应特征,结果表明:1)采场围岩的最大拉应力为0.40 MPa,最大水平位移为28.2 mm,出现在采场 Y 向中轴线附近南帮位置,最大垂直位移为27.43 mm,出现在 Y 向中轴线附近顶板位置,采场围岩发生了一定范围的塑性破坏;2)采场 Y 向中轴线附近位置顶板位移较大,应加强地压监测;采场东头由于受到爆破积累损伤的影响,在对东头侧向崩矿时,要适当调整孔网参数;采场南帮临近区域要增加预裂孔、减小单孔装药量及每段起爆药量,防止爆破超挖矿柱,影响整个盘区的稳定.
力学试验
/
回归反演
/
地应力场
/
模型重构
A three-dimensional numerical analysis model was developed using the complex geological modeling techniques, Surpac and FLAC3D . The initial geo-stress field was obtained by using multiple linear regression method, and the distribution law of in-situ geo- stress field around the stope was obtained by geometric cross- scale model- building technology. On the basis of that, the characteristics of mechanical response of surrounding rocks in deep hole pillarless retreating mining at deep stope were studied. The results showed that: 1) The maximum tensile stress of 0.40 MPa and the maximum horizontal displacement of 28.2 mm were observed at south side of the stope near the Y -central axis. The maximum vertical stress of surrounding rocks was found to be significant at stope roof near the Y -central axis with the maximum value of 27.43 mm. Plastic failure occurred in these corresponding regions. 2) Field monitoring and security measures need to be strengthened near the Y -central axis. The hole net parameter needs to be adjusted in eastward lateral caving due to accumulated damage of blasting. In the south side of the stope, it is necessary to increase presplit holes and reduce single hole explosive load and the initiation dose of each segment to prevent the overbreak of the pillar to affect the stability of the entire extent.
mechanics test
/
regression inversion method
/
geo-stress field
/
model reconstruction
罗周全, 陈杰, 谢承煜, 汪伟, 秦亚光, 陈轶俊.
深部采场无底柱深孔后退式开采围岩力学响应特征.
科技导报,
2015
, 33
(1)
: 70
-74
.
DOI: 10.3981/j.issn.1000-7857.2015.01.012
LUO Zhouquan, CHEN Jie, XIE Chengyu, WANG Wei, QIN Yaguang, CHEN Yijun.
Characteristics of mechanical response of surrounding rocks in deep hole pillarless retreating mining at deep stope[J].
Science & Technology Review ,
2015
, 33
(1)
: 70
-74
.
DOI: 10.3981/j.issn.1000-7857.2015.01.012
2015年第33卷第1期
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文章信息
doi: 10.3981/j.issn.1000-7857.2015.01.012
接收时间：2014-06-05
首发时间：2015-02-02
出版时间：2015-01-13
收稿日期：2014-06-05
修回日期：2014-09-28
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2015.01.012
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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