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Foundation pit bottom plate support changing construction method
The invention relates to the technical field of building construction, and provides a foundation pit bottom plate support replacement construction method which comprises the steps that earth is excavated to the bottom of a foundation pit, and an undisturbed soil body used for supporting a support replacement plate strip is reserved at the position adjacent to a support pile; a support changing plate belt is arranged at the undisturbed soil body; and a cushion layer, a leveling layer, a waterproof layer, a waterproof protection layer and a foundation slab are sequentially laid on the side, away from the support piles, of the support replacement plate strip from bottom to top. By installing the support replacing plate strip and adopting the 7-shaped side wall structure, it is avoided that due to insufficient strength of the support replacing plate, dismantling of the supporting structure is affected, it is guaranteed that the foundation pit structure is stable, the construction procedure is simplified, the construction period is shortened, and the manpower and equipment use time is shortened, so that the construction cost is reduced, and the construction efficiency is improved. The fixing difficulty under the soft soil foundation condition can be effectively avoided, uncertain factors in foundation pit construction are reduced, the engineering risk is reduced, and the engineering construction safety is ensured. The method provides an innovative direction for the research of a deep foundation pit supporting structure, and has a wide application prospect.
本发明涉及建筑施工技术领域,提供一种基坑底板换撑施工方法,包括:土方开挖到基坑底部,在紧邻支护桩处预留用于支承换撑板带的原状土体;在原状土体处设置换撑板带;在换撑板带远离支护桩的一侧从下至上依次铺设垫层、找平层、防水层、防水保护层和基础底板。本发明通过安装换撑板带和采用“7”字形侧壁结构,避免因换撑板强度不足而影响支撑结构拆除,保证基坑结构稳定,简化施工工序,降低施工周期,减少人力和设备的使用时间,从而降低施工成本,提升施工效率。本发明能够有效规避软土地基条件下的固定难度,减少基坑施工中的不确定因素,降低工程风险,确保工程施工安全。本发明为深基坑支护结构研究提供创新方向,具有广泛的应用前景。
Foundation pit bottom plate support changing construction method
The invention relates to the technical field of building construction, and provides a foundation pit bottom plate support replacement construction method which comprises the steps that earth is excavated to the bottom of a foundation pit, and an undisturbed soil body used for supporting a support replacement plate strip is reserved at the position adjacent to a support pile; a support changing plate belt is arranged at the undisturbed soil body; and a cushion layer, a leveling layer, a waterproof layer, a waterproof protection layer and a foundation slab are sequentially laid on the side, away from the support piles, of the support replacement plate strip from bottom to top. By installing the support replacing plate strip and adopting the 7-shaped side wall structure, it is avoided that due to insufficient strength of the support replacing plate, dismantling of the supporting structure is affected, it is guaranteed that the foundation pit structure is stable, the construction procedure is simplified, the construction period is shortened, and the manpower and equipment use time is shortened, so that the construction cost is reduced, and the construction efficiency is improved. The fixing difficulty under the soft soil foundation condition can be effectively avoided, uncertain factors in foundation pit construction are reduced, the engineering risk is reduced, and the engineering construction safety is ensured. The method provides an innovative direction for the research of a deep foundation pit supporting structure, and has a wide application prospect.
本发明涉及建筑施工技术领域,提供一种基坑底板换撑施工方法,包括:土方开挖到基坑底部,在紧邻支护桩处预留用于支承换撑板带的原状土体;在原状土体处设置换撑板带;在换撑板带远离支护桩的一侧从下至上依次铺设垫层、找平层、防水层、防水保护层和基础底板。本发明通过安装换撑板带和采用“7”字形侧壁结构,避免因换撑板强度不足而影响支撑结构拆除,保证基坑结构稳定,简化施工工序,降低施工周期,减少人力和设备的使用时间,从而降低施工成本,提升施工效率。本发明能够有效规避软土地基条件下的固定难度,减少基坑施工中的不确定因素,降低工程风险,确保工程施工安全。本发明为深基坑支护结构研究提供创新方向,具有广泛的应用前景。
Foundation pit bottom plate support changing construction method
基坑底板换撑施工方法
YU NING (author) / ZOU CAIXIA (author) / GAO TIECHENG (author) / CHANG CHENGGAN (author) / ZHANG BIN (author) / ZHANG MIAO (author) / ZHANG JINJUN (author) / CHENG WEILONG (author) / LI HUI (author)
2023-10-03
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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