摘要
为解决目前考虑位移土压力计算方法中参数不易准确取值的不足,在传统的双曲线土压力计算模型和邓肯-张本构模型推导方法的基础上,建立了加固护岸板桩土压力计算模型,提出了基于弹性半空间的Mindlin位移解的土体横向基床系数解析解法。算例分析结果表明,理论计算值与数值模拟值基本吻合,最大仅相差7.6%,从而验证了双曲线土压力计算模型及土体横向基床系数的解析解法合理、可行。
In order to solve the problem that the parameters are not easy to be accurately calculated in the method of calculating the earth pressure considering displacement.Base on the traditional hyperbolic soil pressure calculation model and the derivation method of Duncan-Chang constitutive model,the earth pressure model of sheet pile for reinforcing revetment was established.The analytical solution of the horizontal cofficients of subgrade reaction was proposed by sing Mindlin＇s displacement solution in the interior of a semi-infinite solid.The results of an example show that the values of the theoretical calculation and the numerical simulation are basically consistent,and the maximum difference is only7.6%.The rationalities of the hyperbolic soil pressure calculation model and the analytical solution of the horizontal cofficients of subgrade reaction are validated.
出处
《水电能源科学》
北大核心
2016年第9期157-160,130,共5页
Water Resources and Power
基金
浙江省交通运输厅科技计划项目(2010W08
2013W02)
水利部公益性行业科研专项项目(201501043)
关键词
板桩
土压力模型
MINDLIN位移解
横向基床系数
sheet pile
earth pressure model
Mindlin displacement solution
horizontal cofficients of subgrade reaction
