Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation pit support displacement deformation advanced control system and method
The invention discloses an advanced control system and method for displacement deformation of a foundation pit support. According to the control system and the control method, the control system is constructed before subsequent digging operation of a lower layer, and the control system comprises a lower inclined strut pile (3) and a grouting bag (21); a back shore stress application mechanism (11) is arranged at the stress application end of the lower diagonal bracing pile on the diagonal bracing foundation part based on a horizontal support (16) close to the pit bottom, and the back shore stress application mechanism applies thrust to the lower diagonal bracing pile based on the horizontal support close to the pit bottom, so that the back shore end of the lower diagonal bracing pile applies back shore prestress to the part close to the pit bottom of the enclosure; the grouting bag is arranged on the periphery of the enclosure structure (5), and a grouting background (24) is arranged for the grouting bag. According to the control system and the control method, the measure of applying the back shore prestress can be taken at the first time when displacement deformation possibly happens to the portion, close to the pit bottom, of the enclosure, deformation of the portion, close to the pit bottom, of the enclosure is prevented, and the deformation condition in the excavation process of the foundation pit is effectively controlled.
本发明公开了一种基坑围护位移变形超前控制系统和方法。本发明的控制系统和控制方法包括：在后续下阶层掘土作业前构建控制系统，控制系统包括下斜撑桩(3)和注浆囊袋(21)；下斜撑桩加力端基于近坑底水平支撑(16)，在斜撑基础部处设置顶撑加力机构(11)，顶撑加力机构基于近坑底水平支撑对下斜撑桩施加推力，使得下斜撑桩顶撑端对围护近坑底部位施加顶撑预应力；注浆囊袋设置在围护结构(5)的外围，针对注浆囊袋配置注浆后台(24)。本发明的控制系统和控制方法能够在围护近坑底部位可能发生位移变形的第一时间就可以采取施加顶撑预应力的措施，防止围护近坑底部位发生变形，有效控制基坑开挖过程中的变形情况。
Foundation pit support displacement deformation advanced control system and method
The invention discloses an advanced control system and method for displacement deformation of a foundation pit support. According to the control system and the control method, the control system is constructed before subsequent digging operation of a lower layer, and the control system comprises a lower inclined strut pile (3) and a grouting bag (21); a back shore stress application mechanism (11) is arranged at the stress application end of the lower diagonal bracing pile on the diagonal bracing foundation part based on a horizontal support (16) close to the pit bottom, and the back shore stress application mechanism applies thrust to the lower diagonal bracing pile based on the horizontal support close to the pit bottom, so that the back shore end of the lower diagonal bracing pile applies back shore prestress to the part close to the pit bottom of the enclosure; the grouting bag is arranged on the periphery of the enclosure structure (5), and a grouting background (24) is arranged for the grouting bag. According to the control system and the control method, the measure of applying the back shore prestress can be taken at the first time when displacement deformation possibly happens to the portion, close to the pit bottom, of the enclosure, deformation of the portion, close to the pit bottom, of the enclosure is prevented, and the deformation condition in the excavation process of the foundation pit is effectively controlled.
本发明公开了一种基坑围护位移变形超前控制系统和方法。本发明的控制系统和控制方法包括：在后续下阶层掘土作业前构建控制系统，控制系统包括下斜撑桩(3)和注浆囊袋(21)；下斜撑桩加力端基于近坑底水平支撑(16)，在斜撑基础部处设置顶撑加力机构(11)，顶撑加力机构基于近坑底水平支撑对下斜撑桩施加推力，使得下斜撑桩顶撑端对围护近坑底部位施加顶撑预应力；注浆囊袋设置在围护结构(5)的外围，针对注浆囊袋配置注浆后台(24)。本发明的控制系统和控制方法能够在围护近坑底部位可能发生位移变形的第一时间就可以采取施加顶撑预应力的措施，防止围护近坑底部位发生变形，有效控制基坑开挖过程中的变形情况。
Foundation pit support displacement deformation advanced control system and method
基坑围护位移变形超前控制系统和方法
YU HAIZHOU (Autor:in) / WEI JIAQI (Autor:in) / KONG LINGRONG (Autor:in) / LIU YIN (Autor:in) / YIN JI (Autor:in) / LI XIANG (Autor:in) / ZHANG QIRUI (Autor:in) / JIN QI (Autor:in) / SHANG QI (Autor:in)
20.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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