Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pre-lifting construction method for soft soil texture super high-rise piled raft foundation
The invention discloses a soft soil texture super high-rise piled raft foundation pre-lifting construction method which comprises the following steps: establishing a structural analysis model, and calculating the vertical deformation of a raft plate; fitting a function expression y = f (x); according to y ''= 0, corresponding x1 and x2 are solved as the central points of the raft post-cast strip, and the position of a raft transition area is determined; raft grading lifting parameters are determined; and the raft is constructed, and height compensation is conducted according to the graded lifting parameters. According to the construction method, a settlement prediction numerical value is obtained by building a structure model, a function expression is fitted, post-cast strip theoretical center lines are obtained through second derivatives, and raft plates in the areas between the post-cast strip theoretical center lines are constructed in a graded lifting mode, so that after super high-rise construction is completed, the raft plates and all floors can be almost completely horizontal. By reasonably determining the position of the theoretical center line of the post-cast strip, the optimal shape of section distribution of the raft can be achieved, and balance of cost and safety is achieved.
本发明公开了一种软土地质超高层桩筏基础预抬施工方法，所述施工方法包括步骤：建立结构分析模型，进行筏板竖向变形计算；拟合出函数表达式y=f(x)；根据y’’=0，求出对应的x1、x2作为筏板后浇带中心点，确定筏板过渡区的位置；确定筏板分级抬升参数；对筏板进行施工，并按照分级抬升参数进行高度补偿。该施工方法通过建立结构模型得到沉降预测数值，拟合出函数表达式，并通过二阶导数得到后浇带理论中心线，并对后浇带理论中心线之间的区域的筏板采用分级抬升进行施工，使得超高层施工完毕后，筏板及各层楼板能够近乎完全水平。通过合理确定后浇带理论中心线的位置，能够实现筏板截面分布的最优形态，达到成本和安全的平衡。
Pre-lifting construction method for soft soil texture super high-rise piled raft foundation
The invention discloses a soft soil texture super high-rise piled raft foundation pre-lifting construction method which comprises the following steps: establishing a structural analysis model, and calculating the vertical deformation of a raft plate; fitting a function expression y = f (x); according to y ''= 0, corresponding x1 and x2 are solved as the central points of the raft post-cast strip, and the position of a raft transition area is determined; raft grading lifting parameters are determined; and the raft is constructed, and height compensation is conducted according to the graded lifting parameters. According to the construction method, a settlement prediction numerical value is obtained by building a structure model, a function expression is fitted, post-cast strip theoretical center lines are obtained through second derivatives, and raft plates in the areas between the post-cast strip theoretical center lines are constructed in a graded lifting mode, so that after super high-rise construction is completed, the raft plates and all floors can be almost completely horizontal. By reasonably determining the position of the theoretical center line of the post-cast strip, the optimal shape of section distribution of the raft can be achieved, and balance of cost and safety is achieved.
本发明公开了一种软土地质超高层桩筏基础预抬施工方法，所述施工方法包括步骤：建立结构分析模型，进行筏板竖向变形计算；拟合出函数表达式y=f(x)；根据y’’=0，求出对应的x1、x2作为筏板后浇带中心点，确定筏板过渡区的位置；确定筏板分级抬升参数；对筏板进行施工，并按照分级抬升参数进行高度补偿。该施工方法通过建立结构模型得到沉降预测数值，拟合出函数表达式，并通过二阶导数得到后浇带理论中心线，并对后浇带理论中心线之间的区域的筏板采用分级抬升进行施工，使得超高层施工完毕后，筏板及各层楼板能够近乎完全水平。通过合理确定后浇带理论中心线的位置，能够实现筏板截面分布的最优形态，达到成本和安全的平衡。
Pre-lifting construction method for soft soil texture super high-rise piled raft foundation
软土地质超高层桩筏基础预抬施工方法
XU LEI (Autor:in) / YU GUANGYUAN (Autor:in) / ZHAO JIAN (Autor:in) / LI ZIQIAO (Autor:in) / GAO MIAO (Autor:in) / YU SIYI (Autor:in) / CHEN JIARU (Autor:in)
29.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
| Europäisches Patentamt | 2024
Europäisches Patentamt | 2024
Soil-Piled Raft Foundation Interaction
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Piled Raft and Compensated Piled Raft Foundations for Soft Soil Sites
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