Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard Stratum
The main challenge for metro station construction is to ensure the construction schedule while minimizing the impact on the surrounding environment. Based on the characteristics of the upper-soft and lower-hard stratum in the Dalian city of China, a special structure with six pilot tunnels and three...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6615016 |
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| _version_ | 1832552490808115200 |
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| author | Xinping Guo Annan Jiang Shanyong Wang |
| author_facet | Xinping Guo Annan Jiang Shanyong Wang |
| author_sort | Xinping Guo |
| collection | DOAJ |
| description | The main challenge for metro station construction is to ensure the construction schedule while minimizing the impact on the surrounding environment. Based on the characteristics of the upper-soft and lower-hard stratum in the Dalian city of China, a special structure with six pilot tunnels and three spans of the pile-beam-arch (PBA) method is proposed and applied to the construction of the Labor Park metro station. In this study, laboratory experiments, numerical simulation analysis, and field monitoring data are used to investigate the applicability of six pilot tunnels and three spans of the PBA method in the process of construction. In the process of numerical simulation, the ground surface settlement, arch vertical displacement, the horizontal displacement of rock mass on both sides of the station, and vertical stress of support structure are analyzed. The numerical simulation results are found to be in good agreement with field measurement. Furthermore, the results indicate that, in the construction of six pilot tunnels and three spans of the PBA method, pilot tunnel construction and arch construction have a great influence on the surface settlement. The part of the initial vertical support of the pilot tunnels is removed, which caused the change of the position of maximum vertical stress and the redistribution of vertical stress. Because of reinforcement by side piles on both sides of the station, the horizontal displacement of the rock mass was reduced by 44.76% compared with that without reinforcement. The six pilot tunnels and three spans of the PBA method can effectively control the surface settlement, arch vertical displacement, and horizontal displacement of the rock mass. |
| format | Article |
| id | doaj-art-396989a604af450898a5708a50f863c3 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-396989a604af450898a5708a50f863c32025-02-03T05:58:31ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66150166615016Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard StratumXinping Guo0Annan Jiang1Shanyong Wang2Highway and Bridge Institute, Dalian Maritime University, Dalian 116026, ChinaHighway and Bridge Institute, Dalian Maritime University, Dalian 116026, ChinaARC Centre of Excellence for Geotechnical Science and Engineering, The University of Newcastle, Callaghan, NewCastle 2308, AustraliaThe main challenge for metro station construction is to ensure the construction schedule while minimizing the impact on the surrounding environment. Based on the characteristics of the upper-soft and lower-hard stratum in the Dalian city of China, a special structure with six pilot tunnels and three spans of the pile-beam-arch (PBA) method is proposed and applied to the construction of the Labor Park metro station. In this study, laboratory experiments, numerical simulation analysis, and field monitoring data are used to investigate the applicability of six pilot tunnels and three spans of the PBA method in the process of construction. In the process of numerical simulation, the ground surface settlement, arch vertical displacement, the horizontal displacement of rock mass on both sides of the station, and vertical stress of support structure are analyzed. The numerical simulation results are found to be in good agreement with field measurement. Furthermore, the results indicate that, in the construction of six pilot tunnels and three spans of the PBA method, pilot tunnel construction and arch construction have a great influence on the surface settlement. The part of the initial vertical support of the pilot tunnels is removed, which caused the change of the position of maximum vertical stress and the redistribution of vertical stress. Because of reinforcement by side piles on both sides of the station, the horizontal displacement of the rock mass was reduced by 44.76% compared with that without reinforcement. The six pilot tunnels and three spans of the PBA method can effectively control the surface settlement, arch vertical displacement, and horizontal displacement of the rock mass.http://dx.doi.org/10.1155/2021/6615016 |
| spellingShingle | Xinping Guo Annan Jiang Shanyong Wang Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard Stratum Advances in Civil Engineering |
| title | Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard Stratum |
| title_full | Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard Stratum |
| title_fullStr | Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard Stratum |
| title_full_unstemmed | Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard Stratum |
| title_short | Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard Stratum |
| title_sort | study on the applicability of an improved pile beam arch method of metro station construction in the upper soft and lower hard stratum |
| url | http://dx.doi.org/10.1155/2021/6615016 |
| work_keys_str_mv | AT xinpingguo studyontheapplicabilityofanimprovedpilebeamarchmethodofmetrostationconstructionintheuppersoftandlowerhardstratum AT annanjiang studyontheapplicabilityofanimprovedpilebeamarchmethodofmetrostationconstructionintheuppersoftandlowerhardstratum AT shanyongwang studyontheapplicabilityofanimprovedpilebeamarchmethodofmetrostationconstructionintheuppersoftandlowerhardstratum |