重力式挡土墙结构优化设计的复合形法

将单位长度墙体造价最低作为最优目标函数,采用复合形法作为优化算法的数学手段对重力式挡土墙结构进行优化设计.重力式挡土墙优化设计与工程实例进行对比,讨论了基底摩擦系数对重力式挡土墙的系列优化设计影响.结果表明,进行优化设计的重力式挡土墙使工程造价更为经济合理;当地基承载力较小时,仅在挡土墙基础下进行地基处理以增加摩擦系数是不够的;而当地基承载力较大时,进行以增加摩擦系数为目的的地基处理还是比较有效的.

The Complex Method of Optimization Design for Gravity Retaining Wall

Taking unit length wall cost as optimum objective function,complex method optimization design for gravity retaining wall is proposed.Compared with engineering canses,the effect of friction coefficient of the substrate on the optimization design of gravity retaining wall is discussed.The results show that gravity retaining wall which has been optimally designed is much economical.When bearing capacity of foundation is lower,it is not enough only by improving friction coefficient;When bearing capacity of foundation is higher,it works very well by improving friction coefficient.