| 考虑变形的土压力计算模型在基坑支护体系模拟中的应用 |
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| 引用本文： | 余闯,;赵建平,;潘林有. 考虑变形的土压力计算模型在基坑支护体系模拟中的应用[J]. 工程勘察, 2009, 0(3): 27-30 |
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| 作者姓名： | 余闯, 赵建平, 潘林有 |
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| 作者单位： | [1]温州大学建筑与土木工程学院,浙江温州325035; [2]南京工业大学,南京210009 |
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| 摘 要： | 合理的基坑支护体系的设计是基坑工程施工的重要保证。本文分析了压顶圈梁和支撑支护结构受力、变形的作用机理。在考虑变形的土压力计算模型基础上，将压顶圈梁视为一横向布置的弹性梁，提出了考虑压顶圈梁和支撑作用的整体计算方法。对典型算例的计算，得出桩体变形规律和支撑刚度及布置方式的影响。对基坑支护结构的设计和施工具有积极的指导作用。
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| 关 键 词： | 土压力 基坑 支护系统 变形 |
Application of soil pressure model considering deformation in the simulations on the braced system in excavation |
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| Affiliation: | Yu Chuang , Zhao Jianping, Pan Linyou(1. College of Architecture and Civil Engineering, Wenzhou University, Wenzhou 325035, China ; 2. Nanjing University of Technology, Nanjing 210009, China) |
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| Abstract: | Logical design of braced system is the key issue in the construction of excavation. The influenced mechanisms of top beam and brace on the retaining structures are analyzed respectively in this paper. A finite element program considering the influence of deformation on soil pressure, top beam and brace on retaining structures beam is designed. Ring beam is regarded as a horizontal beam, then an approach that can consider the integrated effects of top beam and brace is presented. The computed results by typical cases show the distribution of later deformation at pile top and the effect of braced system. This should be a good reference for the design and construction of braced system in excavation engineering. |
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| Keywords: | soil pressure excavation braced system deformation |
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