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A platform for research: civil engineering, architecture and urbanism
Quicksand soil foundation pit excavation supporting process and supporting structure
The invention is suitable for the technical field of foundation construction, and particularly provides a quicksand soil foundation pit excavation supporting technology and a supporting structure, and the technology comprises the following steps: carrying out excavation in a preset area until the excavation reaches an underground water level; excavation is paused, a circle of foundation beam is poured around the periphery of the excavated foundation pit, and a wall body is arranged on the upper portion of the foundation beam; the excavation is continued, the foundation beam uniformly sinks along with the increase of the excavation depth, and the foundation beam is used for supporting and water stopping and preventing the side wall from collapsing; the foundation pit is excavated to the target depth, a concrete cushion layer is poured in the foundation pit, a drainage ditch and a water collecting well are reserved and used for draining and collecting accumulated water in the foundation pit, and the supporting structure comprises a foundation beam and a wall in the technology. The invention discloses a quicksand soil foundation pit excavation supporting process, and aims to solve the technical problems of long construction period and high cost of an existing excavation measure when the size and depth of a foundation pit are not large in the prior art.
本申请适用于基础施工技术领域，具体提供了一种流沙土质基坑开挖支护工艺及支护结构，包括以下步骤，在预设区域进行开挖，至开挖到地下水位；暂停开挖，围绕已开挖基坑的四周浇筑一圈基础梁，并在基础梁上部设置墙体；继续开挖，随着开挖深度的增加，所述基础梁随之均匀下沉，基础梁用于支护止水和防止侧壁坍塌；开挖至目标深度，在基坑内浇筑混凝土垫层，并预留排水沟渠以及集水井，用于排出和收集基坑内的积水，支护结构包括工艺中的基础梁以及墙体。流沙土质基坑开挖支护工艺，旨在解决现有技术中存在的对于基坑本身尺寸和深度不大时，现有开挖措施工期长，成本高的技术问题。
Quicksand soil foundation pit excavation supporting process and supporting structure
The invention is suitable for the technical field of foundation construction, and particularly provides a quicksand soil foundation pit excavation supporting technology and a supporting structure, and the technology comprises the following steps: carrying out excavation in a preset area until the excavation reaches an underground water level; excavation is paused, a circle of foundation beam is poured around the periphery of the excavated foundation pit, and a wall body is arranged on the upper portion of the foundation beam; the excavation is continued, the foundation beam uniformly sinks along with the increase of the excavation depth, and the foundation beam is used for supporting and water stopping and preventing the side wall from collapsing; the foundation pit is excavated to the target depth, a concrete cushion layer is poured in the foundation pit, a drainage ditch and a water collecting well are reserved and used for draining and collecting accumulated water in the foundation pit, and the supporting structure comprises a foundation beam and a wall in the technology. The invention discloses a quicksand soil foundation pit excavation supporting process, and aims to solve the technical problems of long construction period and high cost of an existing excavation measure when the size and depth of a foundation pit are not large in the prior art.
本申请适用于基础施工技术领域，具体提供了一种流沙土质基坑开挖支护工艺及支护结构，包括以下步骤，在预设区域进行开挖，至开挖到地下水位；暂停开挖，围绕已开挖基坑的四周浇筑一圈基础梁，并在基础梁上部设置墙体；继续开挖，随着开挖深度的增加，所述基础梁随之均匀下沉，基础梁用于支护止水和防止侧壁坍塌；开挖至目标深度，在基坑内浇筑混凝土垫层，并预留排水沟渠以及集水井，用于排出和收集基坑内的积水，支护结构包括工艺中的基础梁以及墙体。流沙土质基坑开挖支护工艺，旨在解决现有技术中存在的对于基坑本身尺寸和深度不大时，现有开挖措施工期长，成本高的技术问题。
Quicksand soil foundation pit excavation supporting process and supporting structure
流沙土质基坑开挖支护工艺及支护结构
ZHANG MENGMENG (author)
2022-06-24
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| ASCE | 2021
| Engineering Index Backfile | 1881
Foundation pit excavation supporting structure and supporting method
| European Patent Office | 2023
Foundation pit excavation supporting structure and excavation method
| European Patent Office | 2023