Effectiveness of Advanced Support for Shallow-Buried Tunnel Excavation Under-Crossing Provincial Highway in Water-Rich Fractured Zone
To address the safety control challenges of shallow-buried tunnels under-crossing provincial highways in water-rich fractured zones, this study took the Genzi Tunnel project (C1 section) of the Guangdong Water Resources Allocation Project in the Beibu Gulf Metropolitan Area as a case study. Numerica...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Pearl River
2025-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails?columnId=101738766&Fpath=home&index=0 |
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| _version_ | 1849731663212314624 |
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| author | ZHANG Haiwang WANG Zhenming WAN Fa LI Yanchong LIAO Wenguang HUANG Xiangyi |
| author_facet | ZHANG Haiwang WANG Zhenming WAN Fa LI Yanchong LIAO Wenguang HUANG Xiangyi |
| author_sort | ZHANG Haiwang |
| collection | DOAJ |
| description | To address the safety control challenges of shallow-buried tunnels under-crossing provincial highways in water-rich fractured zones, this study took the Genzi Tunnel project (C1 section) of the Guangdong Water Resources Allocation Project in the Beibu Gulf Metropolitan Area as a case study. Numerical simulations and field measurements were employed to investigate the advanced support using small conduits and pipe sheds, and the effectiveness of three advanced support schemes was analyzed: small conduits alone, pipe sheds alone, and combined small conduits with pipe sheds. The findings show that ① The fluid-solid coupling numerical model effectively simulates and predicts the support process during the construction of shallow-buried tunnels under-crossing provincial highways in water-rich fractured zones. ② Dual support and pipe shed support schemes can effectively reduce and control surface subsidence compared to the small conduit scheme. ③ The arching effect generated by pipe sheds induces substantial stress concentrations during initial support at the vault springing of outermost pipe shed elements. Therefore, it is necessary to consider the adverse effect of the possible stress concentration on the initial support force when arranging the support scope of the pipe shed. The dual support scheme integrating pipe sheds and small conduits proves effective in ensuring safety during the construction of tunnels under-crossing provincial highways. |
| format | Article |
| id | doaj-art-a5ff9dbaa65c4c4490cfe5666bfbcd82 |
| institution | DOAJ |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-a5ff9dbaa65c4c4490cfe5666bfbcd822025-08-20T03:08:28ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352025-01-01110101738766Effectiveness of Advanced Support for Shallow-Buried Tunnel Excavation Under-Crossing Provincial Highway in Water-Rich Fractured ZoneZHANG HaiwangWANG ZhenmingWAN FaLI YanchongLIAO WenguangHUANG XiangyiTo address the safety control challenges of shallow-buried tunnels under-crossing provincial highways in water-rich fractured zones, this study took the Genzi Tunnel project (C1 section) of the Guangdong Water Resources Allocation Project in the Beibu Gulf Metropolitan Area as a case study. Numerical simulations and field measurements were employed to investigate the advanced support using small conduits and pipe sheds, and the effectiveness of three advanced support schemes was analyzed: small conduits alone, pipe sheds alone, and combined small conduits with pipe sheds. The findings show that ① The fluid-solid coupling numerical model effectively simulates and predicts the support process during the construction of shallow-buried tunnels under-crossing provincial highways in water-rich fractured zones. ② Dual support and pipe shed support schemes can effectively reduce and control surface subsidence compared to the small conduit scheme. ③ The arching effect generated by pipe sheds induces substantial stress concentrations during initial support at the vault springing of outermost pipe shed elements. Therefore, it is necessary to consider the adverse effect of the possible stress concentration on the initial support force when arranging the support scope of the pipe shed. The dual support scheme integrating pipe sheds and small conduits proves effective in ensuring safety during the construction of tunnels under-crossing provincial highways.http://www.renminzhujiang.cn/thesisDetails?columnId=101738766&Fpath=home&index=0tunneladvanced supportpipe shedunder-crossingsubsidence |
| spellingShingle | ZHANG Haiwang WANG Zhenming WAN Fa LI Yanchong LIAO Wenguang HUANG Xiangyi Effectiveness of Advanced Support for Shallow-Buried Tunnel Excavation Under-Crossing Provincial Highway in Water-Rich Fractured Zone Renmin Zhujiang tunnel advanced support pipe shed under-crossing subsidence |
| title | Effectiveness of Advanced Support for Shallow-Buried Tunnel Excavation Under-Crossing Provincial Highway in Water-Rich Fractured Zone |
| title_full | Effectiveness of Advanced Support for Shallow-Buried Tunnel Excavation Under-Crossing Provincial Highway in Water-Rich Fractured Zone |
| title_fullStr | Effectiveness of Advanced Support for Shallow-Buried Tunnel Excavation Under-Crossing Provincial Highway in Water-Rich Fractured Zone |
| title_full_unstemmed | Effectiveness of Advanced Support for Shallow-Buried Tunnel Excavation Under-Crossing Provincial Highway in Water-Rich Fractured Zone |
| title_short | Effectiveness of Advanced Support for Shallow-Buried Tunnel Excavation Under-Crossing Provincial Highway in Water-Rich Fractured Zone |
| title_sort | effectiveness of advanced support for shallow buried tunnel excavation under crossing provincial highway in water rich fractured zone |
| topic | tunnel advanced support pipe shed under-crossing subsidence |
| url | http://www.renminzhujiang.cn/thesisDetails?columnId=101738766&Fpath=home&index=0 |
| work_keys_str_mv | AT zhanghaiwang effectivenessofadvancedsupportforshallowburiedtunnelexcavationundercrossingprovincialhighwayinwaterrichfracturedzone AT wangzhenming effectivenessofadvancedsupportforshallowburiedtunnelexcavationundercrossingprovincialhighwayinwaterrichfracturedzone AT wanfa effectivenessofadvancedsupportforshallowburiedtunnelexcavationundercrossingprovincialhighwayinwaterrichfracturedzone AT liyanchong effectivenessofadvancedsupportforshallowburiedtunnelexcavationundercrossingprovincialhighwayinwaterrichfracturedzone AT liaowenguang effectivenessofadvancedsupportforshallowburiedtunnelexcavationundercrossingprovincialhighwayinwaterrichfracturedzone AT huangxiangyi effectivenessofadvancedsupportforshallowburiedtunnelexcavationundercrossingprovincialhighwayinwaterrichfracturedzone |