某堤防工程排水管幕方案比选

Scheme Comparison of Drainage Curtain for Embankment Project

为解决某堤防工程排水管幕工程渗流问题,提出9种排水管幕布置方案,并采用改进子结构法模拟该工程排水管幕,首先建立岸坡结构三维有限元模型;其次分析岸坡浸润面形态及排水效果;最后综合考虑经济及排水效果等因素提出相应的满足不同侧重面的排水管幕布置方案。研究结果表明,若侧重于排水效果,选择方案7;若兼顾排水效果及经济,选择方案8;若侧重经济且兼顾排水效果,选择方案1;本工程排水管幕布置选择方案7,该方案已运用于除险加固工程中,取得良好的效果。研究结果为解决相关工程的渗流问题提供技术支持。

In order to solve the seepage problem of drainage curtain project,the technique of improved drainage substructure was used to simulate the drainage curtain.First,three-dimensional finite element model of bank slope structure was established.Then the saturation shape of bank slope and the drainage effect were analyzed.Finally,the arrangement scheme of drainage curtain was put forward by considering the factors of economic and drainage effect.The results show that the 8th scheme can be a solution for considering the factors of both the drainage and economy.Besides,the 1st scheme is based on the consideration of economy.After overall consideration on the factors of drainage and economy,the scheme 7th is finally adopted and it has been applied to reinforcement project of the dike.The result of this research can be a reference for the similar problems.