Numerical modeling of ground settlement control of large span underground metro station in Tehran Metro using Central Beam Column (CBC) structure
► Central Beam Column (CBC) structure is introduced in a staged construction of a large underground. ► Settlement control over an underground Metro station in Tehran is investigated using 3D FE analysis. ► Cases of system with, without CBC and of an improved ground by consolidation grouting are comp...
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| Veröffentlicht in: | Tunnelling and underground space technology 2012-03, Vol.28, p.1-9 |
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| creator | Valizadeh Kivi, A. Sadaghiani, M.H. Ahmadi, M.M. |
| description | ► Central Beam Column (CBC) structure is introduced in a staged construction of a large underground. ► Settlement control over an underground Metro station in Tehran is investigated using 3D FE analysis. ► Cases of system with, without CBC and of an improved ground by consolidation grouting are compared. ► CBC is a reliable and effective way in controlling settlement and stress concentration in supports. ►CBC as a controlled and permanent structure, is more reliable and durable support in its life time.
The ground surface settlement caused by underground excavation is an important matter in urban development. The settlement control of large span underground station in Tehran Metro is investigated using a full three-dimensional (3-D) finite element analysis. A method of underground construction by increasing the rigidity of the supporting system using Central Beam Column (CBC) structure is introduced. In construction of large underground space, effect of presence of CBC structure is compared to a case without CBC structure. The CBC structure increases the rigidity of supports and decrease the stress concentration and displacement in supporting system. It generally decreases the soil deformation above the underground space resulting in smaller ground surface settlement.
Influence of spacing of central columns and their dimensions on the magnitude of settlement are also investigated in this study. Effect of ground improvement of Tehran soil by consolidation grouting on ground surface settlement and stress distribution in supporting system is modeled and analyzed. It can be concluded that in an urban area over a large underground spaces (e.g., underground metro stations) with relatively low overburden similar to northern Tehran, CBC structure can be very effective and reliable measure in controlling and reducing the surface settlement and the stress concentration on initial supporting system. |
| doi_str_mv | 10.1016/j.tust.2011.06.007 |
| format | Article |
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The ground surface settlement caused by underground excavation is an important matter in urban development. The settlement control of large span underground station in Tehran Metro is investigated using a full three-dimensional (3-D) finite element analysis. A method of underground construction by increasing the rigidity of the supporting system using Central Beam Column (CBC) structure is introduced. In construction of large underground space, effect of presence of CBC structure is compared to a case without CBC structure. The CBC structure increases the rigidity of supports and decrease the stress concentration and displacement in supporting system. It generally decreases the soil deformation above the underground space resulting in smaller ground surface settlement.
Influence of spacing of central columns and their dimensions on the magnitude of settlement are also investigated in this study. Effect of ground improvement of Tehran soil by consolidation grouting on ground surface settlement and stress distribution in supporting system is modeled and analyzed. It can be concluded that in an urban area over a large underground spaces (e.g., underground metro stations) with relatively low overburden similar to northern Tehran, CBC structure can be very effective and reliable measure in controlling and reducing the surface settlement and the stress concentration on initial supporting system.</description><identifier>ISSN: 0886-7798</identifier><identifier>EISSN: 1878-4364</identifier><identifier>DOI: 10.1016/j.tust.2011.06.007</identifier><identifier>CODEN: TUSTEQ</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Building structure ; Buildings ; Buildings. Public works ; CBC structure ; Columnar structure ; Computation methods. Tables. Charts ; Consolidation grouting ; Construction (buildings and works) ; Exact sciences and technology ; Geotechnics ; Grounds ; Large span underground spaces ; Metros ; NATM ; Numerical modeling ; Public facilities (municipal, law court, etc.) ; Settlements ; Stations ; Stress concentration ; Structural analysis. Stresses ; Structure-soil interaction ; Subways ; Surface settlement ; Three dimensional ; Types of buildings ; Underground ; Underground structure</subject><ispartof>Tunnelling and underground space technology, 2012-03, Vol.28, p.1-9</ispartof><rights>2011 Elsevier Ltd</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a419t-6708e7b483ad91240413822cf4a84425dc59bae7f396675295e4109cc9192d8a3</citedby><cites>FETCH-LOGICAL-a419t-6708e7b483ad91240413822cf4a84425dc59bae7f396675295e4109cc9192d8a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0886779811000836$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26160695$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Valizadeh Kivi, A.</creatorcontrib><creatorcontrib>Sadaghiani, M.H.</creatorcontrib><creatorcontrib>Ahmadi, M.M.</creatorcontrib><title>Numerical modeling of ground settlement control of large span underground metro station in Tehran Metro using Central Beam Column (CBC) structure</title><title>Tunnelling and underground space technology</title><description>► Central Beam Column (CBC) structure is introduced in a staged construction of a large underground. ► Settlement control over an underground Metro station in Tehran is investigated using 3D FE analysis. ► Cases of system with, without CBC and of an improved ground by consolidation grouting are compared. ► CBC is a reliable and effective way in controlling settlement and stress concentration in supports. ►CBC as a controlled and permanent structure, is more reliable and durable support in its life time.
The ground surface settlement caused by underground excavation is an important matter in urban development. The settlement control of large span underground station in Tehran Metro is investigated using a full three-dimensional (3-D) finite element analysis. A method of underground construction by increasing the rigidity of the supporting system using Central Beam Column (CBC) structure is introduced. In construction of large underground space, effect of presence of CBC structure is compared to a case without CBC structure. The CBC structure increases the rigidity of supports and decrease the stress concentration and displacement in supporting system. It generally decreases the soil deformation above the underground space resulting in smaller ground surface settlement.
Influence of spacing of central columns and their dimensions on the magnitude of settlement are also investigated in this study. Effect of ground improvement of Tehran soil by consolidation grouting on ground surface settlement and stress distribution in supporting system is modeled and analyzed. It can be concluded that in an urban area over a large underground spaces (e.g., underground metro stations) with relatively low overburden similar to northern Tehran, CBC structure can be very effective and reliable measure in controlling and reducing the surface settlement and the stress concentration on initial supporting system.</description><subject>Applied sciences</subject><subject>Building structure</subject><subject>Buildings</subject><subject>Buildings. Public works</subject><subject>CBC structure</subject><subject>Columnar structure</subject><subject>Computation methods. Tables. Charts</subject><subject>Consolidation grouting</subject><subject>Construction (buildings and works)</subject><subject>Exact sciences and technology</subject><subject>Geotechnics</subject><subject>Grounds</subject><subject>Large span underground spaces</subject><subject>Metros</subject><subject>NATM</subject><subject>Numerical modeling</subject><subject>Public facilities (municipal, law court, etc.)</subject><subject>Settlements</subject><subject>Stations</subject><subject>Stress concentration</subject><subject>Structural analysis. Stresses</subject><subject>Structure-soil interaction</subject><subject>Subways</subject><subject>Surface settlement</subject><subject>Three dimensional</subject><subject>Types of buildings</subject><subject>Underground</subject><subject>Underground structure</subject><issn>0886-7798</issn><issn>1878-4364</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqF0c-O1SAUBnBinMTrjC_gio3JuGgFSikkbpzGf8mMbsY1YejplRsKV6Am8xi-sdR741JXJPA7H8n5EHpJSUsJFW8ObVlzaRmhtCWiJWR4gnZUDrLhneBP0Y5IKZphUPIZep7zgRDSM6Z26NeXdYHkrPF4iRN4F_Y4znif4homnKEUDwuEgm0MJUW_PXqT9oDz0QRcEaQzXqACnIspLgbsAr6H76mauz_3a96ixxqV6l83YBY8Rr8uAV-PN-PrOpdWW9YEV-hiNj7Di_N5ib59eH8_fmpuv378PL67bQynqjRiIBKGBy47MynKOOG0k4zZmRvJOesn26sHA8PcKSGGnqkeOCXKWkUVm6TpLtH1KfeY4o8VctGLyxa8NwHimjUdpGCUct79nxKqBOsJkZWyE7Up5pxg1sfkFpMeK9qc0Ae9VaW3qjQRulZVh16d802uTcx1a9blv5NMUEGE6qt7e3JQ9_LTQdLZOggWJpfAFj1F969vfgMDharv</recordid><startdate>20120301</startdate><enddate>20120301</enddate><creator>Valizadeh Kivi, A.</creator><creator>Sadaghiani, M.H.</creator><creator>Ahmadi, M.M.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20120301</creationdate><title>Numerical modeling of ground settlement control of large span underground metro station in Tehran Metro using Central Beam Column (CBC) structure</title><author>Valizadeh Kivi, A. ; Sadaghiani, M.H. ; Ahmadi, M.M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a419t-6708e7b483ad91240413822cf4a84425dc59bae7f396675295e4109cc9192d8a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Applied sciences</topic><topic>Building structure</topic><topic>Buildings</topic><topic>Buildings. Public works</topic><topic>CBC structure</topic><topic>Columnar structure</topic><topic>Computation methods. Tables. Charts</topic><topic>Consolidation grouting</topic><topic>Construction (buildings and works)</topic><topic>Exact sciences and technology</topic><topic>Geotechnics</topic><topic>Grounds</topic><topic>Large span underground spaces</topic><topic>Metros</topic><topic>NATM</topic><topic>Numerical modeling</topic><topic>Public facilities (municipal, law court, etc.)</topic><topic>Settlements</topic><topic>Stations</topic><topic>Stress concentration</topic><topic>Structural analysis. Stresses</topic><topic>Structure-soil interaction</topic><topic>Subways</topic><topic>Surface settlement</topic><topic>Three dimensional</topic><topic>Types of buildings</topic><topic>Underground</topic><topic>Underground structure</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Valizadeh Kivi, A.</creatorcontrib><creatorcontrib>Sadaghiani, M.H.</creatorcontrib><creatorcontrib>Ahmadi, M.M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Tunnelling and underground space technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Valizadeh Kivi, A.</au><au>Sadaghiani, M.H.</au><au>Ahmadi, M.M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical modeling of ground settlement control of large span underground metro station in Tehran Metro using Central Beam Column (CBC) structure</atitle><jtitle>Tunnelling and underground space technology</jtitle><date>2012-03-01</date><risdate>2012</risdate><volume>28</volume><spage>1</spage><epage>9</epage><pages>1-9</pages><issn>0886-7798</issn><eissn>1878-4364</eissn><coden>TUSTEQ</coden><abstract>► Central Beam Column (CBC) structure is introduced in a staged construction of a large underground. ► Settlement control over an underground Metro station in Tehran is investigated using 3D FE analysis. ► Cases of system with, without CBC and of an improved ground by consolidation grouting are compared. ► CBC is a reliable and effective way in controlling settlement and stress concentration in supports. ►CBC as a controlled and permanent structure, is more reliable and durable support in its life time.
The ground surface settlement caused by underground excavation is an important matter in urban development. The settlement control of large span underground station in Tehran Metro is investigated using a full three-dimensional (3-D) finite element analysis. A method of underground construction by increasing the rigidity of the supporting system using Central Beam Column (CBC) structure is introduced. In construction of large underground space, effect of presence of CBC structure is compared to a case without CBC structure. The CBC structure increases the rigidity of supports and decrease the stress concentration and displacement in supporting system. It generally decreases the soil deformation above the underground space resulting in smaller ground surface settlement.
Influence of spacing of central columns and their dimensions on the magnitude of settlement are also investigated in this study. Effect of ground improvement of Tehran soil by consolidation grouting on ground surface settlement and stress distribution in supporting system is modeled and analyzed. It can be concluded that in an urban area over a large underground spaces (e.g., underground metro stations) with relatively low overburden similar to northern Tehran, CBC structure can be very effective and reliable measure in controlling and reducing the surface settlement and the stress concentration on initial supporting system.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.tust.2011.06.007</doi><tpages>9</tpages></addata></record> |
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| subjects | Applied sciences Building structure Buildings Buildings. Public works CBC structure Columnar structure Computation methods. Tables. Charts Consolidation grouting Construction (buildings and works) Exact sciences and technology Geotechnics Grounds Large span underground spaces Metros NATM Numerical modeling Public facilities (municipal, law court, etc.) Settlements Stations Stress concentration Structural analysis. Stresses Structure-soil interaction Subways Surface settlement Three dimensional Types of buildings Underground Underground structure |
| title | Numerical modeling of ground settlement control of large span underground metro station in Tehran Metro using Central Beam Column (CBC) structure |
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