Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite supporting system for protecting closely-attached subway station and construction method
The invention discloses a composite supporting system for protecting a closely-attached subway station and a construction method, and belongs to the field of deep foundation pit supporting. The composite supporting system comprises a combined steel sheet pile tightly attached to a subway station body and a guide rail steel plate tightly attached to a center island body, the combined steel sheet pile and the guide rail steel plate are connected through a steel support, a deep foundation pit and a back pressure soil body are formed between the combined steel sheet pile and the guide rail steel plate in an excavation mode, and a plurality of grouting guide pipes are inserted into the back pressure soil body. In the excavation process, cement and water glass slurry materials are injected into the back pressure soil body through the grouting guide pipe, then the back pressure soil body is reinforced, soil body structure deformation caused by the space-time effect in the soil body excavation process is reduced, the strength of the back pressure soil body is improved, and the influence of single-side large-area unloading on the subway station is effectively controlled; the composite supporting system is simple in principle and structure, convenient to implement and capable of shortening the engineering period and has good application and popularization value.
本发明公开了一种用于保护密贴地铁车站的复合支护体系及施工方法，属于深基坑支护领域；本复合支护体系包括紧密贴合地铁车站主体设置的组合钢板桩、紧密贴合中心岛主体设置的导轨钢板，在两者之间通过钢支撑相连，并且两者之间开挖形成了深基坑和反压土体，本复合支护体系采用在反压土体中插设了若干条注浆导管；在开挖过程中，通过注浆导管向反压土体内注入水泥、水玻璃浆液材料，进而对反压土体进行加固，减少了土体开挖过程中时空效应带来的土体结构变形，提升了反压土体强度，有效控制了单侧大面积卸荷对地铁车站的影响；本复合支护体系的原理和结构简单，便于实施，可缩短工程周期，具有良好的推广应用价值。
Composite supporting system for protecting closely-attached subway station and construction method
The invention discloses a composite supporting system for protecting a closely-attached subway station and a construction method, and belongs to the field of deep foundation pit supporting. The composite supporting system comprises a combined steel sheet pile tightly attached to a subway station body and a guide rail steel plate tightly attached to a center island body, the combined steel sheet pile and the guide rail steel plate are connected through a steel support, a deep foundation pit and a back pressure soil body are formed between the combined steel sheet pile and the guide rail steel plate in an excavation mode, and a plurality of grouting guide pipes are inserted into the back pressure soil body. In the excavation process, cement and water glass slurry materials are injected into the back pressure soil body through the grouting guide pipe, then the back pressure soil body is reinforced, soil body structure deformation caused by the space-time effect in the soil body excavation process is reduced, the strength of the back pressure soil body is improved, and the influence of single-side large-area unloading on the subway station is effectively controlled; the composite supporting system is simple in principle and structure, convenient to implement and capable of shortening the engineering period and has good application and popularization value.
本发明公开了一种用于保护密贴地铁车站的复合支护体系及施工方法，属于深基坑支护领域；本复合支护体系包括紧密贴合地铁车站主体设置的组合钢板桩、紧密贴合中心岛主体设置的导轨钢板，在两者之间通过钢支撑相连，并且两者之间开挖形成了深基坑和反压土体，本复合支护体系采用在反压土体中插设了若干条注浆导管；在开挖过程中，通过注浆导管向反压土体内注入水泥、水玻璃浆液材料，进而对反压土体进行加固，减少了土体开挖过程中时空效应带来的土体结构变形，提升了反压土体强度，有效控制了单侧大面积卸荷对地铁车站的影响；本复合支护体系的原理和结构简单，便于实施，可缩短工程周期，具有良好的推广应用价值。
Composite supporting system for protecting closely-attached subway station and construction method
一种用于保护密贴地铁车站的复合支护体系及施工方法
XING BIAO (Autor:in) / XU SHIMING (Autor:in) / ZHAO XUEJUN (Autor:in) / DI GUANGMING (Autor:in) / ZHAO YANBIN (Autor:in) / LIU SHAORONG (Autor:in) / ZHANG CHAO (Autor:in) / XU YOUJUN (Autor:in)
16.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
| Europäisches Patentamt | 2021
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