Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite foundation structure of transition section of deep soft foundation railway bridge abutment and construction method
The invention relates to a deep soft foundation railway bridge abutment transition section composite foundation structure and a construction method, and belongs to the technical field of geotechnical engineering soft soil foundation treatment.The deep soft foundation railway bridge abutment transition section composite foundation structure comprises variable-pile-length bidirectional cement mixing piles, cap beams, variable-pile-length three-axis cement mixing piles and first geogrids; the pile lengths of the variable-pile-length bidirectional cement mixing piles are gradually reduced in the bridge-road direction; the cap beam is arranged above the variable-pile-length two-way cement mixing pile and is poured in the direction parallel to the extending direction of the railway; the pile lengths of the variable-pile-length three-axis cement mixing piles are gradually reduced in the bridge-road direction; a reinforced soil foundation is arranged above the cap beam, and the first geogrid is laid in the reinforced soil foundation. According to the composite foundation structure of the transition section of the deep soft foundation railway bridge abutment and the construction method, the cap beam and the first geogrid are arranged and form a soil arching effect with the variable-pile-length three-axis cement mixing piles, stress can be evenly distributed on the foundation, and the local stress concentration phenomenon is reduced.
本发明涉及一种深厚软基铁路桥台过渡段复合地基结构及施工方法，属于岩土工程软土地基处理技术领域，该深厚软基铁路桥台过渡段复合地基结构包括变桩长双向水泥搅拌桩、帽梁、变桩长三轴水泥搅拌桩、第一土工格栅；其中，变桩长双向水泥搅拌桩的桩长沿桥‑路方向逐渐减小；帽梁设置于变桩长双向水泥搅拌桩的上方，并平行于铁路延伸方向浇筑；变桩长三轴水泥搅拌桩的桩长沿桥‑路方向逐渐减小；帽梁的上方设有加筋土地基，第一土工格栅铺设于加筋土地基内。该深厚软基铁路桥台过渡段复合地基结构及施工方法通过帽梁和第一土工格栅的设置，与变桩长三轴水泥搅拌桩形成土拱效应，有助于将应力均匀分布在地基上，减少局部应力集中现象。
Composite foundation structure of transition section of deep soft foundation railway bridge abutment and construction method
The invention relates to a deep soft foundation railway bridge abutment transition section composite foundation structure and a construction method, and belongs to the technical field of geotechnical engineering soft soil foundation treatment.The deep soft foundation railway bridge abutment transition section composite foundation structure comprises variable-pile-length bidirectional cement mixing piles, cap beams, variable-pile-length three-axis cement mixing piles and first geogrids; the pile lengths of the variable-pile-length bidirectional cement mixing piles are gradually reduced in the bridge-road direction; the cap beam is arranged above the variable-pile-length two-way cement mixing pile and is poured in the direction parallel to the extending direction of the railway; the pile lengths of the variable-pile-length three-axis cement mixing piles are gradually reduced in the bridge-road direction; a reinforced soil foundation is arranged above the cap beam, and the first geogrid is laid in the reinforced soil foundation. According to the composite foundation structure of the transition section of the deep soft foundation railway bridge abutment and the construction method, the cap beam and the first geogrid are arranged and form a soil arching effect with the variable-pile-length three-axis cement mixing piles, stress can be evenly distributed on the foundation, and the local stress concentration phenomenon is reduced.
本发明涉及一种深厚软基铁路桥台过渡段复合地基结构及施工方法，属于岩土工程软土地基处理技术领域，该深厚软基铁路桥台过渡段复合地基结构包括变桩长双向水泥搅拌桩、帽梁、变桩长三轴水泥搅拌桩、第一土工格栅；其中，变桩长双向水泥搅拌桩的桩长沿桥‑路方向逐渐减小；帽梁设置于变桩长双向水泥搅拌桩的上方，并平行于铁路延伸方向浇筑；变桩长三轴水泥搅拌桩的桩长沿桥‑路方向逐渐减小；帽梁的上方设有加筋土地基，第一土工格栅铺设于加筋土地基内。该深厚软基铁路桥台过渡段复合地基结构及施工方法通过帽梁和第一土工格栅的设置，与变桩长三轴水泥搅拌桩形成土拱效应，有助于将应力均匀分布在地基上，减少局部应力集中现象。
Composite foundation structure of transition section of deep soft foundation railway bridge abutment and construction method
一种深厚软基铁路桥台过渡段复合地基结构及施工方法
WANG XIN (Autor:in) / LIU YANG (Autor:in) / LIU YINGCHAO (Autor:in) / ZHANG RUIQI (Autor:in) / HAN SHIXIU (Autor:in)
08.10.2024
Patent
Elektronische Ressource
Chinesisch
Construction method for reinforcing bridge abutment under soft foundation
| Europäisches Patentamt | 2020
Bridge construction method using old bridge abutment foundation as abutment front retaining wall
| Europäisches Patentamt | 2023
Bridge-head bumping processing method for relatively deep mud soft soil foundation behind abutment
| Europäisches Patentamt | 2016
Bridge foundation deep foundation pit excavation construction method
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2022