A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Excavation construction method for deep foundation pits on two sides of existing building
The invention discloses an excavation construction method for deep foundation pits on the two sides of an existing building, and relates to the technical field of foundation pit construction.The excavation construction method comprises the steps that S1, foundation pits are excavated on the two sides of an original building at the same time, and the tunneling directions of the two foundation pits are perpendicular to the original building and are opposite left and right; and S2, when excavation is conducted till original slope protection piles on the periphery of the original building are exposed, excavation is stopped, and a current-period slope protection structure is installed at the positions of the original slope protection piles. The foundation pits are excavated on the two sides of the original building at the same time, the tunneling directions of the two foundation pits are opposite left and right, and the excavation progress is kept consistent, so that single-side settlement of the original building caused by unbalance loading is avoided, and the safety of the original building is ensured to the maximum extent. The current-period slope protection pile and the current-period slope protection plate are attached to the original slope protection pile for anchor cable pulling connection, the pulling connection structure is simplified, and the construction efficiency is further improved. The fastener is fastened to the surface of the current waist beam from bottom to top, so that the current waist beam is prevented from torsion damage, and the problem that threads of the first bolt are damaged and cannot be screwed out is solved.
本发明公开了一种现有建筑两侧深基坑开挖施工方法，涉及基坑施工技术领域，步骤包括：S1、在原有建筑两侧同时开挖基坑，两个基坑的掘进方向均垂直于原有建筑且左右相对；S2、挖掘至原有建筑周边的原有护坡桩暴露时停止掘进，并在原有护坡桩位置安装本期护坡结构。在原有建筑两侧同时开挖基坑，两个基坑的掘进方向左右相对且开挖进度保持一致，从而避免原有建筑因偏载而发生单侧沉降，最大限度的确保原有建筑的安全。本期护坡桩、本期护坡板依附原有护坡桩进行锚索拉接，简化拉接结构，进一步提高施工效率。扣件由下至上扣接在本期腰梁表面，避免本期腰梁发生扭转损伤，避免第一螺栓螺纹受损导致无法旋出的问题。
Excavation construction method for deep foundation pits on two sides of existing building
The invention discloses an excavation construction method for deep foundation pits on the two sides of an existing building, and relates to the technical field of foundation pit construction.The excavation construction method comprises the steps that S1, foundation pits are excavated on the two sides of an original building at the same time, and the tunneling directions of the two foundation pits are perpendicular to the original building and are opposite left and right; and S2, when excavation is conducted till original slope protection piles on the periphery of the original building are exposed, excavation is stopped, and a current-period slope protection structure is installed at the positions of the original slope protection piles. The foundation pits are excavated on the two sides of the original building at the same time, the tunneling directions of the two foundation pits are opposite left and right, and the excavation progress is kept consistent, so that single-side settlement of the original building caused by unbalance loading is avoided, and the safety of the original building is ensured to the maximum extent. The current-period slope protection pile and the current-period slope protection plate are attached to the original slope protection pile for anchor cable pulling connection, the pulling connection structure is simplified, and the construction efficiency is further improved. The fastener is fastened to the surface of the current waist beam from bottom to top, so that the current waist beam is prevented from torsion damage, and the problem that threads of the first bolt are damaged and cannot be screwed out is solved.
本发明公开了一种现有建筑两侧深基坑开挖施工方法，涉及基坑施工技术领域，步骤包括：S1、在原有建筑两侧同时开挖基坑，两个基坑的掘进方向均垂直于原有建筑且左右相对；S2、挖掘至原有建筑周边的原有护坡桩暴露时停止掘进，并在原有护坡桩位置安装本期护坡结构。在原有建筑两侧同时开挖基坑，两个基坑的掘进方向左右相对且开挖进度保持一致，从而避免原有建筑因偏载而发生单侧沉降，最大限度的确保原有建筑的安全。本期护坡桩、本期护坡板依附原有护坡桩进行锚索拉接，简化拉接结构，进一步提高施工效率。扣件由下至上扣接在本期腰梁表面，避免本期腰梁发生扭转损伤，避免第一螺栓螺纹受损导致无法旋出的问题。
Excavation construction method for deep foundation pits on two sides of existing building
一种现有建筑两侧深基坑开挖施工方法
LANG XIAOXIONG (author) / WANG XILUN (author) / WANG NING (author) / WANG XIUPENG (author) / YU JIE (author) / FU MINGRAN (author) / SHI WEIYUE (author) / DU HAO (author) / LIU LEI (author)
2024-12-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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