Stability Evaluation Model of a Tunnel Face Excavated by the Benching Method in a Soft Silty Clay Layer
Abstract With the increasing construction demand for tunnels in soft silty clay layers, it is important to effectively control the face stability of a tunnel. One of the key issues for maintaining face stability is addressing how to accurately obtain the limit support pressure of a tunnel face excav...
Gespeichert in:
| Veröffentlicht in: | International journal of geomechanics 2021-04, Vol.21 (4) |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | 4 |
| container_start_page | |
| container_title | International journal of geomechanics |
| container_volume | 21 |
| creator | Ding, Wantao Wang, Han Liu, Keqi Hou, Minglei Chen, Rui |
| description | Abstract
With the increasing construction demand for tunnels in soft silty clay layers, it is important to effectively control the face stability of a tunnel. One of the key issues for maintaining face stability is addressing how to accurately obtain the limit support pressure of a tunnel face excavated by the benching method in a soft silty clay layer. Therefore, based on the limit equilibrium method, an improved three-dimensional face stability analysis model is presented in this paper considering the advancing support effect of small pipes. In the model, the sliding failure zone is formed by a log-spiral line. The upper load of the sliding failure zone is shaped by the gravity of the soil, and it can be calculated by a two-parameter elastic foundation beam model when an advanced small pipe is utilized. By comparing these results with the limit support pressure predicted by existing models, the improved model is shown to be reasonable. Finally, the influence of the soil parameters on the limit support pressure is also assessed. The proposed failure mechanism improves the stability analysis of the tunnel face excavated by the benching method in the soft silty clay layer. |
| doi_str_mv | 10.1061/(ASCE)GM.1943-5622.0001962 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2482428525</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2482428525</sourcerecordid><originalsourceid>FETCH-LOGICAL-a337t-ec591bf4d6d89ea0da7490a7cefd1306d9f9909913b2ef90fef28893de439043</originalsourceid><addsrcrecordid>eNp1kMtOwzAQRSMEEqXwDxZsYJHiVx5mB1FakBqxSPeWE4_bVCEuiVuRvydRC6xYzWh0zx3peN4twTOCQ_J4_5wn6cMimxHBmR-ElM4wxkSE9Myb_N7Ohz1g1GchJ5feVddth0zEAzHx1rlTRVVXrkfpQdV75SrboMxqqJE1SKHVvmmGfa5KQOlXqQ7KgUZFj9wG0As05aZq1igDt7EaVc1A5NY4lFf1UJnUqkdL1UN77V0YVXdwc5pTbzVPV8mrv3xfvCXPS18xFjkfykCQwnAd6liAwlpFXGAVlWA0YTjUwgiBhSCsoGAENmBoHAumgTOBOZt6d8faXWs_99A5ubX7thk-Sspjymkc0GBIPR1TZWu7rgUjd231odpeEixHr1KOXuUik6NDOTqUJ68DHB5h1ZXwV_9D_g9-A5Oce8Y</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2482428525</pqid></control><display><type>article</type><title>Stability Evaluation Model of a Tunnel Face Excavated by the Benching Method in a Soft Silty Clay Layer</title><source>American Society of Civil Engineers:NESLI2:Journals:2014</source><creator>Ding, Wantao ; Wang, Han ; Liu, Keqi ; Hou, Minglei ; Chen, Rui</creator><creatorcontrib>Ding, Wantao ; Wang, Han ; Liu, Keqi ; Hou, Minglei ; Chen, Rui</creatorcontrib><description>Abstract
With the increasing construction demand for tunnels in soft silty clay layers, it is important to effectively control the face stability of a tunnel. One of the key issues for maintaining face stability is addressing how to accurately obtain the limit support pressure of a tunnel face excavated by the benching method in a soft silty clay layer. Therefore, based on the limit equilibrium method, an improved three-dimensional face stability analysis model is presented in this paper considering the advancing support effect of small pipes. In the model, the sliding failure zone is formed by a log-spiral line. The upper load of the sliding failure zone is shaped by the gravity of the soil, and it can be calculated by a two-parameter elastic foundation beam model when an advanced small pipe is utilized. By comparing these results with the limit support pressure predicted by existing models, the improved model is shown to be reasonable. Finally, the influence of the soil parameters on the limit support pressure is also assessed. The proposed failure mechanism improves the stability analysis of the tunnel face excavated by the benching method in the soft silty clay layer.</description><identifier>ISSN: 1532-3641</identifier><identifier>EISSN: 1943-5622</identifier><identifier>DOI: 10.1061/(ASCE)GM.1943-5622.0001962</identifier><language>eng</language><publisher>Reston: American Society of Civil Engineers</publisher><subject>Clay ; Control stability ; Dimensional stability ; Elastic foundations ; Failure analysis ; Failure mechanisms ; Gravity ; Mathematical models ; Parameters ; Pressure ; Sliding ; Slumping ; Soil ; Soils ; Stability analysis ; Technical Papers ; Three dimensional analysis ; Three dimensional models ; Tunnel construction ; Tunnels</subject><ispartof>International journal of geomechanics, 2021-04, Vol.21 (4)</ispartof><rights>2021 American Society of Civil Engineers</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a337t-ec591bf4d6d89ea0da7490a7cefd1306d9f9909913b2ef90fef28893de439043</citedby><cites>FETCH-LOGICAL-a337t-ec591bf4d6d89ea0da7490a7cefd1306d9f9909913b2ef90fef28893de439043</cites><orcidid>0000-0002-8312-2497</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttp://ascelibrary.org/doi/pdf/10.1061/(ASCE)GM.1943-5622.0001962$$EPDF$$P50$$Gasce$$H</linktopdf><linktohtml>$$Uhttp://ascelibrary.org/doi/abs/10.1061/(ASCE)GM.1943-5622.0001962$$EHTML$$P50$$Gasce$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,75935,75943</link.rule.ids></links><search><creatorcontrib>Ding, Wantao</creatorcontrib><creatorcontrib>Wang, Han</creatorcontrib><creatorcontrib>Liu, Keqi</creatorcontrib><creatorcontrib>Hou, Minglei</creatorcontrib><creatorcontrib>Chen, Rui</creatorcontrib><title>Stability Evaluation Model of a Tunnel Face Excavated by the Benching Method in a Soft Silty Clay Layer</title><title>International journal of geomechanics</title><description>Abstract
With the increasing construction demand for tunnels in soft silty clay layers, it is important to effectively control the face stability of a tunnel. One of the key issues for maintaining face stability is addressing how to accurately obtain the limit support pressure of a tunnel face excavated by the benching method in a soft silty clay layer. Therefore, based on the limit equilibrium method, an improved three-dimensional face stability analysis model is presented in this paper considering the advancing support effect of small pipes. In the model, the sliding failure zone is formed by a log-spiral line. The upper load of the sliding failure zone is shaped by the gravity of the soil, and it can be calculated by a two-parameter elastic foundation beam model when an advanced small pipe is utilized. By comparing these results with the limit support pressure predicted by existing models, the improved model is shown to be reasonable. Finally, the influence of the soil parameters on the limit support pressure is also assessed. The proposed failure mechanism improves the stability analysis of the tunnel face excavated by the benching method in the soft silty clay layer.</description><subject>Clay</subject><subject>Control stability</subject><subject>Dimensional stability</subject><subject>Elastic foundations</subject><subject>Failure analysis</subject><subject>Failure mechanisms</subject><subject>Gravity</subject><subject>Mathematical models</subject><subject>Parameters</subject><subject>Pressure</subject><subject>Sliding</subject><subject>Slumping</subject><subject>Soil</subject><subject>Soils</subject><subject>Stability analysis</subject><subject>Technical Papers</subject><subject>Three dimensional analysis</subject><subject>Three dimensional models</subject><subject>Tunnel construction</subject><subject>Tunnels</subject><issn>1532-3641</issn><issn>1943-5622</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kMtOwzAQRSMEEqXwDxZsYJHiVx5mB1FakBqxSPeWE4_bVCEuiVuRvydRC6xYzWh0zx3peN4twTOCQ_J4_5wn6cMimxHBmR-ElM4wxkSE9Myb_N7Ohz1g1GchJ5feVddth0zEAzHx1rlTRVVXrkfpQdV75SrboMxqqJE1SKHVvmmGfa5KQOlXqQ7KgUZFj9wG0As05aZq1igDt7EaVc1A5NY4lFf1UJnUqkdL1UN77V0YVXdwc5pTbzVPV8mrv3xfvCXPS18xFjkfykCQwnAd6liAwlpFXGAVlWA0YTjUwgiBhSCsoGAENmBoHAumgTOBOZt6d8faXWs_99A5ubX7thk-Sspjymkc0GBIPR1TZWu7rgUjd231odpeEixHr1KOXuUik6NDOTqUJ68DHB5h1ZXwV_9D_g9-A5Oce8Y</recordid><startdate>20210401</startdate><enddate>20210401</enddate><creator>Ding, Wantao</creator><creator>Wang, Han</creator><creator>Liu, Keqi</creator><creator>Hou, Minglei</creator><creator>Chen, Rui</creator><general>American Society of Civil Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KR7</scope><scope>L.G</scope><orcidid>https://orcid.org/0000-0002-8312-2497</orcidid></search><sort><creationdate>20210401</creationdate><title>Stability Evaluation Model of a Tunnel Face Excavated by the Benching Method in a Soft Silty Clay Layer</title><author>Ding, Wantao ; Wang, Han ; Liu, Keqi ; Hou, Minglei ; Chen, Rui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a337t-ec591bf4d6d89ea0da7490a7cefd1306d9f9909913b2ef90fef28893de439043</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Clay</topic><topic>Control stability</topic><topic>Dimensional stability</topic><topic>Elastic foundations</topic><topic>Failure analysis</topic><topic>Failure mechanisms</topic><topic>Gravity</topic><topic>Mathematical models</topic><topic>Parameters</topic><topic>Pressure</topic><topic>Sliding</topic><topic>Slumping</topic><topic>Soil</topic><topic>Soils</topic><topic>Stability analysis</topic><topic>Technical Papers</topic><topic>Three dimensional analysis</topic><topic>Three dimensional models</topic><topic>Tunnel construction</topic><topic>Tunnels</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ding, Wantao</creatorcontrib><creatorcontrib>Wang, Han</creatorcontrib><creatorcontrib>Liu, Keqi</creatorcontrib><creatorcontrib>Hou, Minglei</creatorcontrib><creatorcontrib>Chen, Rui</creatorcontrib><collection>CrossRef</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>International journal of geomechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ding, Wantao</au><au>Wang, Han</au><au>Liu, Keqi</au><au>Hou, Minglei</au><au>Chen, Rui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stability Evaluation Model of a Tunnel Face Excavated by the Benching Method in a Soft Silty Clay Layer</atitle><jtitle>International journal of geomechanics</jtitle><date>2021-04-01</date><risdate>2021</risdate><volume>21</volume><issue>4</issue><issn>1532-3641</issn><eissn>1943-5622</eissn><abstract>Abstract
With the increasing construction demand for tunnels in soft silty clay layers, it is important to effectively control the face stability of a tunnel. One of the key issues for maintaining face stability is addressing how to accurately obtain the limit support pressure of a tunnel face excavated by the benching method in a soft silty clay layer. Therefore, based on the limit equilibrium method, an improved three-dimensional face stability analysis model is presented in this paper considering the advancing support effect of small pipes. In the model, the sliding failure zone is formed by a log-spiral line. The upper load of the sliding failure zone is shaped by the gravity of the soil, and it can be calculated by a two-parameter elastic foundation beam model when an advanced small pipe is utilized. By comparing these results with the limit support pressure predicted by existing models, the improved model is shown to be reasonable. Finally, the influence of the soil parameters on the limit support pressure is also assessed. The proposed failure mechanism improves the stability analysis of the tunnel face excavated by the benching method in the soft silty clay layer.</abstract><cop>Reston</cop><pub>American Society of Civil Engineers</pub><doi>10.1061/(ASCE)GM.1943-5622.0001962</doi><orcidid>https://orcid.org/0000-0002-8312-2497</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1532-3641 |
| ispartof | International journal of geomechanics, 2021-04, Vol.21 (4) |
| issn | 1532-3641 1943-5622 |
| language | eng |
| recordid | cdi_proquest_journals_2482428525 |
| source | American Society of Civil Engineers:NESLI2:Journals:2014 |
| subjects | Clay Control stability Dimensional stability Elastic foundations Failure analysis Failure mechanisms Gravity Mathematical models Parameters Pressure Sliding Slumping Soil Soils Stability analysis Technical Papers Three dimensional analysis Three dimensional models Tunnel construction Tunnels |
| title | Stability Evaluation Model of a Tunnel Face Excavated by the Benching Method in a Soft Silty Clay Layer |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-11T07%3A16%3A22IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Stability%20Evaluation%20Model%20of%20a%20Tunnel%20Face%20Excavated%20by%20the%20Benching%20Method%20in%20a%20Soft%20Silty%20Clay%20Layer&rft.jtitle=International%20journal%20of%20geomechanics&rft.au=Ding,%20Wantao&rft.date=2021-04-01&rft.volume=21&rft.issue=4&rft.issn=1532-3641&rft.eissn=1943-5622&rft_id=info:doi/10.1061/(ASCE)GM.1943-5622.0001962&rft_dat=%3Cproquest_cross%3E2482428525%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2482428525&rft_id=info:pmid/&rfr_iscdi=true |