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A platform for research: civil engineering, architecture and urbanism
Deep foundation pit support construction method in complex environment
The invention provides a construction method for a deep foundation pit support in a complex environment, and belongs to the technical field of building construction.The construction method for the deep foundation pit support in the complex environment comprises the steps that a construction site is surveyed, the height difference between the river bed height and the support elevation of a river channel is determined, and the river channel is backfilled; the construction site is surrounded, and construction of high-pressure jet grouting pile guide hole stand columns is conducted; earth excavation is conducted on the supporting installation working face; a bracket and the stand column are welded and fixed; the enclosing purlins, the brackets, the non-standard parts and the connecting parts are installed and fixed; supporting and sealing the fish-bellied sill, and arranging monitoring points on the fish-bellied sill; tensioning of a prestressed steel strand is applied to the fish-bellied sill, and stress detection is carried out; the next layer of earthwork is excavated; according to the construction method, the problems that a traditional deep foundation pit support is supported through a concrete inner support and a steel support, the overall rigidity and stability of a supporting system are low, displacement of the foundation pit is difficult to accurately control, and deformation of the foundation pit is prone to occurring can be solved.
本发明提供了一种复杂环境下深基坑支撑施工方法，属于建筑施工技术领域，该复杂环境下深基坑支撑施工方法为对施工现场进行勘测，确定河道河床高度与支撑标高高差，进行河道回填；将施工现场进行围护，并进行高压旋喷桩引孔立柱的施工；对支撑安装作业面进行土方开挖；将牛腿与所述立柱进行焊接固定；进行围檩、托座、非标件以及连接件的安装固定；支撑封闭鱼腹梁安装，并在所述鱼腹梁上布置监测点；在所述鱼腹梁上施加预应力钢绞线的张拉，进行应力检测；进行下一层土方的开挖；该施工方法能够解决传统的深基坑支撑通过混凝土内支撑、钢支撑，支撑体系的整体钢度和稳定性低，难以精确地控制基坑位移，容易发生基坑的形变的问题。
Deep foundation pit support construction method in complex environment
The invention provides a construction method for a deep foundation pit support in a complex environment, and belongs to the technical field of building construction.The construction method for the deep foundation pit support in the complex environment comprises the steps that a construction site is surveyed, the height difference between the river bed height and the support elevation of a river channel is determined, and the river channel is backfilled; the construction site is surrounded, and construction of high-pressure jet grouting pile guide hole stand columns is conducted; earth excavation is conducted on the supporting installation working face; a bracket and the stand column are welded and fixed; the enclosing purlins, the brackets, the non-standard parts and the connecting parts are installed and fixed; supporting and sealing the fish-bellied sill, and arranging monitoring points on the fish-bellied sill; tensioning of a prestressed steel strand is applied to the fish-bellied sill, and stress detection is carried out; the next layer of earthwork is excavated; according to the construction method, the problems that a traditional deep foundation pit support is supported through a concrete inner support and a steel support, the overall rigidity and stability of a supporting system are low, displacement of the foundation pit is difficult to accurately control, and deformation of the foundation pit is prone to occurring can be solved.
本发明提供了一种复杂环境下深基坑支撑施工方法，属于建筑施工技术领域，该复杂环境下深基坑支撑施工方法为对施工现场进行勘测，确定河道河床高度与支撑标高高差，进行河道回填；将施工现场进行围护，并进行高压旋喷桩引孔立柱的施工；对支撑安装作业面进行土方开挖；将牛腿与所述立柱进行焊接固定；进行围檩、托座、非标件以及连接件的安装固定；支撑封闭鱼腹梁安装，并在所述鱼腹梁上布置监测点；在所述鱼腹梁上施加预应力钢绞线的张拉，进行应力检测；进行下一层土方的开挖；该施工方法能够解决传统的深基坑支撑通过混凝土内支撑、钢支撑，支撑体系的整体钢度和稳定性低，难以精确地控制基坑位移，容易发生基坑的形变的问题。
Deep foundation pit support construction method in complex environment
一种复杂环境下深基坑支撑施工方法
SHI HONGLIANG (author) / ZHAN YONGFANG (author) / HAN SHUTAO (author) / XU ZESEN (author) / CHEN MINGJIE (author) / XIAO ZHIWEI (author) / ZHU TONG (author) / YU FENGFENG (author) / WANG NING (author)
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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