| 土压力在位移影响下的近似求解方法 |
| |
| 引用本文： | 赵元海,史庆涛.土压力在位移影响下的近似求解方法[J].华东交通大学学报,2013(6):49-54. |
| |
| 作者姓名： | 赵元海 史庆涛 |
| |
| 作者单位： | [1]河海大学岩土力学与堤坝工程教育部重点实验室,江苏南京210098 [2]河海大学岩土工程科学研究所,江苏南京210098 [3]中铁十四局集团有限公司,山东济南250000 |
| |
| 摘 要： | 在现有研究的基础上，可以用正弦，指数或双曲线函数来模拟松弛应力，挤压应力与位移之间的关联。从双曲线函数这一方面入手，通过水平基床系数结合邓肯-张模型确定公式中参数，建立了考虑位移非线性影响的主动与被动土压力计算公式。该公式简单易懂，物理含义明确，能够反映位移对土压力的非线性影响，具有较好的可计算性，能够很好的模拟出支护结构土体位移的情况。
|
| 关 键 词： | 双曲线 土压力 位移 水平基床系数 |
The Approximate Solution of Earth Pressure under the Influence of the Displacement |
| |
| Zhao Yuanhai,Shi Qingtao.The Approximate Solution of Earth Pressure under the Influence of the Displacement[J].Journal of East China Jiaotong University,2013(6):49-54. |
| |
| Authors: | Zhao Yuanhai Shi Qingtao |
| |
| Institution: | 1. Key Laboratory of Geomechanics and Embankment Engineering of the Ministry of Education, Hohai University, Nanjing 210098, China; 2. Geotechnieal Engineering Research Institute, Hohai University, Nanjing 210098, China; 3 China Railway 14th Bureau Group Co. , Ltd. , Jinan 250000, China) |
| |
| Abstract: | On the basis of existing researches,the sine,index or hyperbolic function is adopted to simulate the slack between relaxation stress,compressive stress and displacement. By using the hyperbola,this paper estab-lishes calculation formula of active and passive earth pressure under the influence of the nonlinear displacement through the horizontal foundation coefficient of sub-grade reaction combined with Duncan-Zhang model to de-termine the formula parameters. The formula,which is easy to understand and has definite physical meaning with great computability,can reflect the nonlinear influence of displacement on active and passive earth pres-sure and simulate better the situation of soil displacement of retaining structure. |
| |
| Keywords: | hyperbolic curve earth pressure displacement horizontal coefficient of sub-grade reaction |
| 本文献已被 维普 等数据库收录！ |
|
