Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Centrifugal model test device and method for measuring vertical and horizontal ultimate bearing capacity of pile foundation
The invention relates to a centrifugal model test device for measuring the vertical and horizontal ultimate bearing capacity of a pile foundation. The centrifugal model test device comprises a model box, a transverse support, a first model pile, a second model pile, a first hydraulic jack, a second hydraulic jack, a first servo valve, a second servo valve, a vertical displacement sensor, a horizontal displacement sensor and model soil. The model box is divided into a main test box and an auxiliary test box by a partition plate and adjustable supports, the transverse support is erected above the model box and comprises a long truss and short trusses, and a first base plate and a second base plate are arranged on the long truss. The centrifugal model test device has the advantages that the pile top settlement and the pile body axial force distribution law under the action of different levels of vertical loads can be directly measured through the vertical displacement sensor and the firstmodel pile with attached strain gauges, a load-settlement curve, a settlement-time curve and the like are drawn, and the vertical compression resistance ultimate bearing capacity of the pile foundation is accurately obtained.
本发明涉及测定桩基竖向和水平极限承载力的离心模型试验装置，包括模型箱、横向支架、第一模型桩、第二模型桩、第一液压千斤顶、第二液压千斤顶、第一伺服阀、第二伺服阀、竖向位移传感器、水平位移传感器及模型用土；所述模型箱通过隔板和可调式支撑分隔为主体试验箱和附属试验箱，所述横向支架架设在模型箱上方，所述横向支架包括长桁架和短桁架，所述长桁架上设置第一垫板和第二垫板。本发明的有益效果是：本发明通过竖向位移传感器和粘贴有应变片的第一模型桩可以直接测得在各级竖向荷载作用下的桩顶沉降和桩身轴力分布规律，绘制出荷载‑沉降曲线和沉降‑时间曲线等，准确得到桩基的竖向抗压极限承载力。
Centrifugal model test device and method for measuring vertical and horizontal ultimate bearing capacity of pile foundation
The invention relates to a centrifugal model test device for measuring the vertical and horizontal ultimate bearing capacity of a pile foundation. The centrifugal model test device comprises a model box, a transverse support, a first model pile, a second model pile, a first hydraulic jack, a second hydraulic jack, a first servo valve, a second servo valve, a vertical displacement sensor, a horizontal displacement sensor and model soil. The model box is divided into a main test box and an auxiliary test box by a partition plate and adjustable supports, the transverse support is erected above the model box and comprises a long truss and short trusses, and a first base plate and a second base plate are arranged on the long truss. The centrifugal model test device has the advantages that the pile top settlement and the pile body axial force distribution law under the action of different levels of vertical loads can be directly measured through the vertical displacement sensor and the firstmodel pile with attached strain gauges, a load-settlement curve, a settlement-time curve and the like are drawn, and the vertical compression resistance ultimate bearing capacity of the pile foundation is accurately obtained.
本发明涉及测定桩基竖向和水平极限承载力的离心模型试验装置，包括模型箱、横向支架、第一模型桩、第二模型桩、第一液压千斤顶、第二液压千斤顶、第一伺服阀、第二伺服阀、竖向位移传感器、水平位移传感器及模型用土；所述模型箱通过隔板和可调式支撑分隔为主体试验箱和附属试验箱，所述横向支架架设在模型箱上方，所述横向支架包括长桁架和短桁架，所述长桁架上设置第一垫板和第二垫板。本发明的有益效果是：本发明通过竖向位移传感器和粘贴有应变片的第一模型桩可以直接测得在各级竖向荷载作用下的桩顶沉降和桩身轴力分布规律，绘制出荷载‑沉降曲线和沉降‑时间曲线等，准确得到桩基的竖向抗压极限承载力。
Centrifugal model test device and method for measuring vertical and horizontal ultimate bearing capacity of pile foundation
测定桩基竖向和水平极限承载力的离心模型试验装置及方法
DIAO HONGGUO (Autor:in) / WANG XINQUAN (Autor:in) / CUI YUNLIANG (Autor:in) / ZHANG TIANCI (Autor:in)
22.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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