模糊综合评判在桥梁基础施工方案选择中的应用

文章介绍桥梁基础施工过程中,为保证水下基础在无水或静水条件下进行施工,需采取井点法、围堰施工法及地下连续墙施工法及沉井施工法等各种方法,这些方法各有优缺点且有各自的适用范围,但在某一工程中这些方法均适用;实践证明,可以用模糊综合评判的方法来选择最优方案。

Application of fuzzy comprehensive evaluation in the selection of bridge foundation construction schemes

In construction of bridge foundations,it is necessary to adopt certain methods to ensure that the foundation is constructed in arid or static water circumstances.The well-point dewatering method is commonly used to lower the underground water level,and the cofferdam or the continuous slurry wall or the open caisson is usually constructed to isolate the underground water.All these methods have advantages and drawbacks and special application scope,but if they are all suitable for a certain project,it is a thorny thing to choose the optimum scheme.In the paper,the optimum scheme is chosen through fuzzy comprehensive evaluation.The concrete steps of the method are described and an example is given.