Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Field Test Study on Influence of Undercrossing Construction on Safety of Existing High-Speed Railway
Abstract The construction of high-pressure jet grouting pile has a compacting effect, when the construction is close to bridge pier and abutment and other structures, it will cause lateral deformation and vertical settlement of the structures. High-speed railway is a premium risk source, and its operation safety must be guaranteed during the construction undercrossing it. However, in China, there has not been any construction experience about undercrossing an operating high-speed railway previously. To ensure safety of the construction undercrossing BeiJing-TianJin Inter-city Railway, the field test study are conducted. The conclusions of the field study are as follows: (1) The construction under three working conditions all has some influence on lateral deformation and vertical settlement of the structures, but it is safe and controllable according to the test data; (2) Relatively, Case 2 has greater influence than Case 1 and Case 3. Therefore, it should be given more attention during construction; (3) Lateral deformation is more sensitive than vertical settlement during the construction undercrossing the high-speed railway, and it should be intensively monitored.
Field Test Study on Influence of Undercrossing Construction on Safety of Existing High-Speed Railway
Abstract The construction of high-pressure jet grouting pile has a compacting effect, when the construction is close to bridge pier and abutment and other structures, it will cause lateral deformation and vertical settlement of the structures. High-speed railway is a premium risk source, and its operation safety must be guaranteed during the construction undercrossing it. However, in China, there has not been any construction experience about undercrossing an operating high-speed railway previously. To ensure safety of the construction undercrossing BeiJing-TianJin Inter-city Railway, the field test study are conducted. The conclusions of the field study are as follows: (1) The construction under three working conditions all has some influence on lateral deformation and vertical settlement of the structures, but it is safe and controllable according to the test data; (2) Relatively, Case 2 has greater influence than Case 1 and Case 3. Therefore, it should be given more attention during construction; (3) Lateral deformation is more sensitive than vertical settlement during the construction undercrossing the high-speed railway, and it should be intensively monitored.
Field Test Study on Influence of Undercrossing Construction on Safety of Existing High-Speed Railway
Xiao, Hong (Autor:in) / Ling, Xing (Autor:in) / Lv, Song (Autor:in)
28.06.2017
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Undercrossing construction , High-pressure jet grouting pile , Field test , Structural deformation , Safety influence Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Vibration, Dynamical Systems, Control , Monitoring/Environmental Analysis , Building Repair and Maintenance , Transportation Technology and Traffic Engineering
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