同马大堤巨网段软弱堤基处理措施分析  

Analysis on treatment measures of soft embankment foundation in Tongma Dyke Juwang Section

作　　者：曹应华 CAO Ying-hua

机构地区：[1]安徽省皖河长江河道管理局,安徽安庆246009

出　　处：《东北水利水电》2022年第9期53-55,72,共4页Water Resources & Hydropower of Northeast China

摘　　要：同马大堤巨网段堤防堤基为软弱的河湖沉积层,该堤段建成后多次出现了堤顶开裂、沉陷、护坡塌陷和滑坡等险情。文中在分析该段堤防地基不均匀沉降的基础上,分别介绍了直排式真空联合堆载预压和水泥搅拌桩两种处理措施的加固机理、处理方法及优缺点。两种方案在技术上均可行,在多方面综合考虑的基础上,建议采用水泥搅拌桩处理措施。The dike base of the Juwang Section of Tongma Dyke is weak river and lake sediments. After the completion of this section, there have been many dangerous situations such as the crack of the top, subsidence, slope protection collapse and landslide.Based on the analysis of the uneven settlement of the embankment foundation in this section, the reinforcement mechanism, treatment method and advantages and disadvantages of two treatment measures, namely, the direct vacuum combined pile preloading and cement mixing pile, are introduced respectively. The two schemes are feasible in technology. On the basis of comprehensive consideration in many aspects, it is suggested to adopt cement mixing pile treatment measures.

关 键 词：同马大堤 软弱堤基 不均匀沉降 地基处理 

分 类 号：TV223[水利工程—水工结构工程]