Multi-arch tunnel surrounding rock stress release rate estimation method
The invention discloses a multi-arch tunnel surrounding rock stress release rate estimation method. The method comprises the following steps: acquiring an original crustal stress component at a multi-arch tunnel surrounding rock test section under a drilling coordinate system; excavating the pilot h...
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| creator | YUAN CONGHUA LI GENLONG SHEN MENGLONG GUO YUEWEN WU ZHENJUN LIANG YANFENG DENG QIN TANG HUA YIN XIAOTAO QIN YUQIAO WANG YUNLONG GE XIURUN ZHANG YONGHUI ZOU XIAOHONG |
| description | The invention discloses a multi-arch tunnel surrounding rock stress release rate estimation method. The method comprises the following steps: acquiring an original crustal stress component at a multi-arch tunnel surrounding rock test section under a drilling coordinate system; excavating the pilot hole to obtain rock mass deformation parameters at the monitored section of the pilot hole; a stress release rate measuring hole is formed in the pilot hole; a three-way strain rosette is pasted in the measuring hole and is plugged; a middle guide wall is poured, a measuring connector is arranged, and strain initial values in three directions of each three-direction strain rosette are obtained; digging a front hole and a rear hole in sequence, and measuring the strain value of each three-way strain rosette; according to the positive strain change amount and the positive stress change amount of each three-way strain rosette caused by construction in the drilling coordinate system obtained through calculation, the str |
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The method comprises the following steps: acquiring an original crustal stress component at a multi-arch tunnel surrounding rock test section under a drilling coordinate system; excavating the pilot hole to obtain rock mass deformation parameters at the monitored section of the pilot hole; a stress release rate measuring hole is formed in the pilot hole; a three-way strain rosette is pasted in the measuring hole and is plugged; a middle guide wall is poured, a measuring connector is arranged, and strain initial values in three directions of each three-direction strain rosette are obtained; digging a front hole and a rear hole in sequence, and measuring the strain value of each three-way strain rosette; according to the positive strain change amount and the positive stress change amount of each three-way strain rosette caused by construction in the drilling coordinate system obtained through calculation, the str</description><language>chi ; eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; DETECTING MASSES OR OBJECTS ; ELECTRIC DIGITAL DATA PROCESSING ; GEOPHYSICS ; GRAVITATIONAL MEASUREMENTS ; MEASURING ; PHYSICS ; TESTING</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230124&DB=EPODOC&CC=CN&NR=115639619A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230124&DB=EPODOC&CC=CN&NR=115639619A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YUAN CONGHUA</creatorcontrib><creatorcontrib>LI GENLONG</creatorcontrib><creatorcontrib>SHEN MENGLONG</creatorcontrib><creatorcontrib>GUO YUEWEN</creatorcontrib><creatorcontrib>WU ZHENJUN</creatorcontrib><creatorcontrib>LIANG YANFENG</creatorcontrib><creatorcontrib>DENG QIN</creatorcontrib><creatorcontrib>TANG HUA</creatorcontrib><creatorcontrib>YIN XIAOTAO</creatorcontrib><creatorcontrib>QIN YUQIAO</creatorcontrib><creatorcontrib>WANG YUNLONG</creatorcontrib><creatorcontrib>GE XIURUN</creatorcontrib><creatorcontrib>ZHANG YONGHUI</creatorcontrib><creatorcontrib>ZOU XIAOHONG</creatorcontrib><title>Multi-arch tunnel surrounding rock stress release rate estimation method</title><description>The invention discloses a multi-arch tunnel surrounding rock stress release rate estimation method. 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| language | chi ; eng |
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| subjects | CALCULATING COMPUTING COUNTING DETECTING MASSES OR OBJECTS ELECTRIC DIGITAL DATA PROCESSING GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING |
| title | Multi-arch tunnel surrounding rock stress release rate estimation method |
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