Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Raft foundation existing building basement storey adding method
The invention discloses a basement storey adding method for a raft foundation existing building. Belongs to the technical field of constructional engineering in civil engineering, and utilizes steel drum concrete piles which are inserted into floppy foundation soil after being rotated and stirred from drilling holes in the top surface of a raft foundation to support a building load, so that columns of an original building are lengthened, and the columns and a basement bottom plate form an integral new foundation. The foundation soil under the basement bottom plate and the steel drum concrete piles jointly bear the load of the upper building; according to the method, an original raft foundation is locally holed to form a soil outlet to provide conditions for excavation of a soil body below the original raft foundation, surrounding soil bodies are supported and blocked through the original raft foundation, an additionally-arranged force transmission plate belt and a foundation pit supporting and blocking structure, horizontal deformation of the excavated soil bodies is controlled, and therefore storey adding is conducted on the basement. According to the method, construction is convenient, and soil deformation and building deformation in the foundation underpinning and foundation pit excavation process can be strictly controlled.
本发明公开了一种筏板基础既有建筑物地下室增层方法；属于土木工程中建筑工程的技术领域，其利用从筏板基础顶面钻孔处插入被旋转搅拌后松软的地基土的钢桶混凝土桩支撑建筑物荷载，进而对原建筑物的柱子延长并和地下室底板形成整体性新基础，由地下室底板下地基土和钢桶混凝土桩共同承担上部建筑物荷载；在原筏板基础局部开洞形成出土口为下方土体开挖提供条件，并利用原筏板基础和增设的传力板带以及基坑支挡结构支挡周围土体并控制开挖后土体的水平变形，从而进行地下室增层的方法。该方法施工方便，且可严格控制基础托换、基坑开挖过程中的土体变形和建筑物变形。
Raft foundation existing building basement storey adding method
The invention discloses a basement storey adding method for a raft foundation existing building. Belongs to the technical field of constructional engineering in civil engineering, and utilizes steel drum concrete piles which are inserted into floppy foundation soil after being rotated and stirred from drilling holes in the top surface of a raft foundation to support a building load, so that columns of an original building are lengthened, and the columns and a basement bottom plate form an integral new foundation. The foundation soil under the basement bottom plate and the steel drum concrete piles jointly bear the load of the upper building; according to the method, an original raft foundation is locally holed to form a soil outlet to provide conditions for excavation of a soil body below the original raft foundation, surrounding soil bodies are supported and blocked through the original raft foundation, an additionally-arranged force transmission plate belt and a foundation pit supporting and blocking structure, horizontal deformation of the excavated soil bodies is controlled, and therefore storey adding is conducted on the basement. According to the method, construction is convenient, and soil deformation and building deformation in the foundation underpinning and foundation pit excavation process can be strictly controlled.
本发明公开了一种筏板基础既有建筑物地下室增层方法；属于土木工程中建筑工程的技术领域，其利用从筏板基础顶面钻孔处插入被旋转搅拌后松软的地基土的钢桶混凝土桩支撑建筑物荷载，进而对原建筑物的柱子延长并和地下室底板形成整体性新基础，由地下室底板下地基土和钢桶混凝土桩共同承担上部建筑物荷载；在原筏板基础局部开洞形成出土口为下方土体开挖提供条件，并利用原筏板基础和增设的传力板带以及基坑支挡结构支挡周围土体并控制开挖后土体的水平变形，从而进行地下室增层的方法。该方法施工方便，且可严格控制基础托换、基坑开挖过程中的土体变形和建筑物变形。
Raft foundation existing building basement storey adding method
一种筏板基础既有建筑物地下室增层方法
WEN YINGWEN (Autor:in)
17.12.2024
Patent
Elektronische Ressource
Chinesisch
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