Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for reinforcing foundation soil body of existing building
The invention discloses a construction method for reinforcing an existing building foundation soil body, belongs to the technical field of existing building foundation reinforcement, and is based on a prestressed pile pressurization system which comprises a steel cross beam, a prestressed anchor cable, a tensioning jack and a steel pipe pile. The construction method for reinforcing the foundation soil body of the existing building comprises the following steps that a prestressed pile pressurization system is installed; reinforcing a base soil body; a prestressed pile pressurization system is operated; and finishing the construction operation. According to the method, anchor rod static pressure piles or anchor rod static pressure piles of dry hole forming and hole guiding serve as temporary supporting piles, temporary underpinning or jacking is conducted on a building foundation in a prestress applying mode, then a base soil layer is reinforced through the intelligent control grouting technology, and finally a combined stress system of base reinforced soil and prestressed piles is achieved. Therefore, the bearing capacity of the foundation is reinforced.
本发明公开了一种既有建筑物基底土体加固的施工方法，属于既有建筑物基底加固技术领域，基于预应力桩加压系统，所述预应力桩加压系统包括钢横梁、预应力锚索、张拉千斤顶、钢管桩；采用如下步骤对既有建筑物基底土体进行加固的施工方法：安装预应力桩加压系统；加固基底土体；运行预应力桩加压系统；完成施工作业。本发明通过锚杆静压桩或干成孔引孔的锚杆静压桩作为临时支撑桩，通过施加预应力的形式将建筑物基础进行临时托换或顶升，然后通过智能控制注浆技术对基底土层进行加固，最终实现基底加固土与预应力桩的联合受力体系，从而实现基础承载能力补强。
Construction method for reinforcing foundation soil body of existing building
The invention discloses a construction method for reinforcing an existing building foundation soil body, belongs to the technical field of existing building foundation reinforcement, and is based on a prestressed pile pressurization system which comprises a steel cross beam, a prestressed anchor cable, a tensioning jack and a steel pipe pile. The construction method for reinforcing the foundation soil body of the existing building comprises the following steps that a prestressed pile pressurization system is installed; reinforcing a base soil body; a prestressed pile pressurization system is operated; and finishing the construction operation. According to the method, anchor rod static pressure piles or anchor rod static pressure piles of dry hole forming and hole guiding serve as temporary supporting piles, temporary underpinning or jacking is conducted on a building foundation in a prestress applying mode, then a base soil layer is reinforced through the intelligent control grouting technology, and finally a combined stress system of base reinforced soil and prestressed piles is achieved. Therefore, the bearing capacity of the foundation is reinforced.
本发明公开了一种既有建筑物基底土体加固的施工方法，属于既有建筑物基底加固技术领域，基于预应力桩加压系统，所述预应力桩加压系统包括钢横梁、预应力锚索、张拉千斤顶、钢管桩；采用如下步骤对既有建筑物基底土体进行加固的施工方法：安装预应力桩加压系统；加固基底土体；运行预应力桩加压系统；完成施工作业。本发明通过锚杆静压桩或干成孔引孔的锚杆静压桩作为临时支撑桩，通过施加预应力的形式将建筑物基础进行临时托换或顶升，然后通过智能控制注浆技术对基底土层进行加固，最终实现基底加固土与预应力桩的联合受力体系，从而实现基础承载能力补强。
Construction method for reinforcing foundation soil body of existing building
一种既有建筑物基底土体加固的施工方法
LIU BO (Autor:in) / SONG WEIJIE (Autor:in) / ZHU QINGKAI (Autor:in) / XIA WENTAO (Autor:in) / LIU GUANGLEI (Autor:in) / WU SIYU (Autor:in)
05.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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