| 基于Duncan-Chang本构的非线性土压力模型 |
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| 引用本文： | 吴明,夏唐代,俞峰.基于Duncan-Chang本构的非线性土压力模型[J].煤田地质与勘探,2008,36(2):36-39. |
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| 作者姓名： | 吴明 夏唐代 俞峰 |
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| 作者单位： | 1. 浙江大学软弱土与环境土工教育部重点实验室，浙江 杭州 310027; |
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| 摘 要： | 假设基坑工程中挡土结构的变形和土压力服从双曲线模型,类比Duncan-Chang本构建模思想,在前人关于基坑主动区和被动区变形假设的基础上,建立了可以考虑位移变化的非线性土压力模型。把非线性土压力模型和Duncan-Chang本构模型联系起来,使得本文非线性土压力模型参数确定有根据。把弹性地基梁模型和该非线性土压力联系起来,使得弹性抗力系数的概念更加明确。以m法为例,深入分析了m法的影响因素。
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| 关 键 词： | 非线性土压力 弹性地基梁 m法 Duncan-Chang模型 |
| 文章编号： | 1001-1986(2008)02-0036-04 |
| 收稿时间： | 2007-10-09 |
| 修稿时间： | 2007年10月9日 |
Non-linear earth pressure model based on Duncan-Chang constitutive model |
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| WU Ming,XIA Tang-dai,YU Feng.Non-linear earth pressure model based on Duncan-Chang constitutive model[J].Coal Geology & Exploration,2008,36(2):36-39. |
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| Authors: | WU Ming XIA Tang-dai YU Feng |
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| Institution: | 1. Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang Uni-versity, Hangzhou 310027, China;2. College of Architecture and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China |
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| Abstract: | Provided that the relationship between retaining wall deflection and earth pressure comply with hyper-bola model,the nonlinear earth pressure considering retaining wall deflection is built.The nonlinear earth pressure model based on the predecessors' researches on foundation pit active and passive zones,which builds like Dun-can-Chang model.Therefore,the parameter of the nonlinear pressure can be ascertained by conventional triaxial tests in the way Duncan-Chang model makes.The elastic resistance method connects with the nonlinear earth pressure,this makes elastic resistance coefficient definite.Taking "m" method as an example,the influence factors are analyzed. |
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| Keywords: | non-linear earth pressure elastic resistance "m" method Duncan-Chang model |
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