Article(id=1222925287269061319, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222925278838513745, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20220640, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1648828800000, receivedDateStr=2022-04-02, revisedDate=1652112000000, revisedDateStr=2022-05-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1769497709337, onlineDateStr=2026-01-27, pubDate=1677254400000, pubDateStr=2023-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769497709337, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769497709337, creator=13701087609, updateTime=1769497709337, updator=13701087609, issue=Issue{id=1222925278838513745, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='2', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769497707328, creator=13701087609, updateTime=1769497707328, updator=13701087609, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=191, endPage=194, ext={EN=ArticleExt(id=1222925289672397692, articleId=1222925287269061319, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Application of Hydraulic Fracturing In-situ Stress Test Method in Qinling Tunnel, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

Geostress field plays an important role in the stability of tunnel surrounding rock. Based on the in-situ stress results and geological conditions in the cracked area of the secondary lining concrete of the Qinling water conveyance tunnel from Hanjiang-to-Weihe, three-dimensional hydraulic fracturing method was used to analyze the in-situ stress of the surrounding rock in Qinling tunnel. The results show that the maximum principal stress on the cross section of the horizontal hole is 16.3-37.9 MPa and the minimum principal stress on the cross section is 2.4-9.1 MPa in the horizontal drilling depth range of 9.2-26.6 m. In the vertical drilling depth range of 3.8-20.7 m, the maximum horizontal principal stress is mainly 21.5-30.5 MPa, the azimuth average is N57°E, and the minimum horizontal principal stress is mainly 12.7-16.5 MPa. The maximum and minimum and the spatial maximum principal stress are 24.3 MPa, 14.4 MPa and 24.6 MPa respectively, which are nearly horizontal distribution. The stress field of surrounding rock at the test site of tunnel rock mass is mainly horizontal stress and the rock mass stress is classified as "high in-situ stress".

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鉴于地应力场对隧洞围岩稳定性有重要作用,基于引汉济渭秦岭输水隧洞二衬混凝土开裂区域典型断面地应力实测结果与地质构造条件,运用三维水压致裂法分析了秦岭隧洞的围岩地应力。结果表明,水平孔在9.2~26.6 m钻孔深度内,钻孔横截面上最大主应力为16.3~37.9 MPa,截面最小主应力为2.4~9.1 MPa;铅直孔在3.8~20.7 m钻孔深度内,最大水平主应力为21.5~30.5 MPa,方位平均为N57°E,最小水平主应力为12.7~16.5 MPa;三维应力计算的最大、最小水平主应力分别为24.3、14.4 MPa,空间最大主应力为24.6 MPa,呈近水平分布。可见隧洞岩体的测试位置围岩应力场主要为水平应力,岩体应力分级为高地应力。

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雷龙(1988-),男,硕士研究生,研究方向为水工结构应力分析、数值仿真及工程建设管理,E-mail:

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雷龙(1988-),男,硕士研究生,研究方向为水工结构应力分析、数值仿真及工程建设管理,E-mail:

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雷龙(1988-),男,硕士研究生,研究方向为水工结构应力分析、数值仿真及工程建设管理,E-mail:

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水电能源科学 | 水利水电工程 2023,41(2): 191-194
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水压致裂地应力测试法在秦岭隧洞中的应用
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作者信息
  • 陕西省引汉济渭工程建设有限公司,陕西 西安 710024
  • 雷龙(1988-),男,硕士研究生,研究方向为水工结构应力分析、数值仿真及工程建设管理,E-mail:

Application of Hydraulic Fracturing In-situ Stress Test Method in Qinling Tunnel
Long LEI
Affiliations
  • Hanjiang-to-Weihe River Valley Water Diversion Project Construction Co Ltd, Shaanxi Province, Xi’an 710024, China
出版时间: 2023-02-25 doi: 10.20040/j.cnki.1000-7709.2023.20220640
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鉴于地应力场对隧洞围岩稳定性有重要作用,基于引汉济渭秦岭输水隧洞二衬混凝土开裂区域典型断面地应力实测结果与地质构造条件,运用三维水压致裂法分析了秦岭隧洞的围岩地应力。结果表明,水平孔在9.2~26.6 m钻孔深度内,钻孔横截面上最大主应力为16.3~37.9 MPa,截面最小主应力为2.4~9.1 MPa;铅直孔在3.8~20.7 m钻孔深度内,最大水平主应力为21.5~30.5 MPa,方位平均为N57°E,最小水平主应力为12.7~16.5 MPa;三维应力计算的最大、最小水平主应力分别为24.3、14.4 MPa,空间最大主应力为24.6 MPa,呈近水平分布。可见隧洞岩体的测试位置围岩应力场主要为水平应力,岩体应力分级为高地应力。

输水隧洞  /  地应力测试  /  水压致裂法  /  塑性变形

Geostress field plays an important role in the stability of tunnel surrounding rock. Based on the in-situ stress results and geological conditions in the cracked area of the secondary lining concrete of the Qinling water conveyance tunnel from Hanjiang-to-Weihe, three-dimensional hydraulic fracturing method was used to analyze the in-situ stress of the surrounding rock in Qinling tunnel. The results show that the maximum principal stress on the cross section of the horizontal hole is 16.3-37.9 MPa and the minimum principal stress on the cross section is 2.4-9.1 MPa in the horizontal drilling depth range of 9.2-26.6 m. In the vertical drilling depth range of 3.8-20.7 m, the maximum horizontal principal stress is mainly 21.5-30.5 MPa, the azimuth average is N57°E, and the minimum horizontal principal stress is mainly 12.7-16.5 MPa. The maximum and minimum and the spatial maximum principal stress are 24.3 MPa, 14.4 MPa and 24.6 MPa respectively, which are nearly horizontal distribution. The stress field of surrounding rock at the test site of tunnel rock mass is mainly horizontal stress and the rock mass stress is classified as "high in-situ stress".

water conveyance tunnel  /  geostress test  /  hydraulic fracturing method  /  plastic deformation
雷龙. 水压致裂地应力测试法在秦岭隧洞中的应用. 水电能源科学, 2023 , 41 (2) : 191 -194 . DOI: 10.20040/j.cnki.1000-7709.2023.20220640
Long LEI. Application of Hydraulic Fracturing In-situ Stress Test Method in Qinling Tunnel[J]. Water Resources and Power, 2023 , 41 (2) : 191 -194 . DOI: 10.20040/j.cnki.1000-7709.2023.20220640
  • 国家重点研发计划(2016YFC0401805)
  • 2013年陕西省科技统筹创新工程计划项目(2013KTZB-03-01-01)
2023年第41卷第2期
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doi: 10.20040/j.cnki.1000-7709.2023.20220640
  • 接收时间:2022-04-02
  • 首发时间:2026-01-27
  • 出版时间:2023-02-25
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  • 收稿日期:2022-04-02
  • 修回日期:2022-05-10
基金
国家重点研发计划(2016YFC0401805)
2013年陕西省科技统筹创新工程计划项目(2013KTZB-03-01-01)
作者信息
    陕西省引汉济渭工程建设有限公司,陕西 西安 710024
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2种不同金属材料的力学参数

Family
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Number of
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种数
Number of
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Genus
种数
Number of
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Percentage of total
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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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