基于正交试验的桩锚支护结构多参数优化设计

Multi-parameter optimization design of pile-anchor supporting structure based on orthogonal experiment

桩锚支护结构在实际施工过程中存在较多不足,结构设计参数选取及优化便是其中之一。针对此问题,采用正交试验设计对支护结构设计中排桩参数(距离、直径)及锚索参数(预应力、长度、倾角)进行优化设计,以极差分析法研究其对基坑变形的影响。结果表明:优化设计后的支护方案对减小基坑变形有利,并可降低工程成本。

Pile-anchor supporting structure has many shortcomings in the actual construction process,and the selection and optimization of structural design parameters is one of them.In response to this problem,orthogonal experimental design was used to optimize the design of the pile parameters(distance,diameter)and anchor cable parameters(prestress,length,inclination)in the design of the supporting structure.The range analysis method is used to study its influence on the deformation of foundation pit.The results show that the optimized design of the support scheme is beneficial to reduce the deformation of the foundation pit and can reduce the engineering cost.