地基对胶结砂砾石防洪堤受力特性影响研究  

Study on the Influence of Foundation on the Mechanical Characteristics of Cemented Sand Gravel Flood Embankment

作　　者：师现营 郭利霞[2] 罗云 吴建新 SHI Xianying;GUO Lixia;LUO Yun;WU Jianxin(East Henan W ater Conservancy Project Management Bureau,Kaifeng 475000,China;Norh China Univerity of w ater Reaources and Electrie Power,Zhengzhou 450046,China;Henan Xinyang Hydrology and Water Resources Survey,Xinyang 464099,China;Zhongmou Munieipal Security Instiute of Administrotion Bureau,Zhengzhou 450099,China)

机构地区：[1]河南省豫东水利工程管理局,河南开封475000 [2]华北水利水电大学,河南郑州450046 [3]河南省信阳水文水资源勘测局,河南信阳464099 [4]中牟县城市管理局市政保障所,河南郑州450099

出　　处：《河南水利与南水北调》2022年第6期86-88,共3页Henan Water Resources & South-to-North Water Diversion

基　　金：河南省自然科学基金项目:(202300410270)胶凝砂砾石抗冻耐久性行为及劣化损伤机理研究

摘　　要：胶结砂砾石防洪堤作为一种新型绿色结构形式,在工程应用中的地基适用性尚不明确。以犍为防洪堤为研究对象,采用数值模拟手段分析基础和垫层设置对结构受力特性的影响。结果表明:软岩或碎石地基上均可修建防洪堤,满足承载力和渗流要求下,地基条件越差,堤防开裂风险越低;设置垫层及加大强约束区材料性能可提高堤防的安全性。研究成果可为胶结砂砾石堤坝结构设计提供理论依据。As a new type of green structure, the applicability of cemented sand gravel flood embankment in engineering application is not clear yet. Taking Qianwei flood control embankment as the research object, numerical simulation method is used to analyze the influence of foundation and cushion setting on the mechanical characteristics of the structure. The results show from the following two perspectives. Firstly, embankment can be built on soft rock or gravel foundation. Under the requirements of bearing capacity and seepage, the worse the foundation condition is. the lower the risk of embankment cracking is;Secondly, the safety of dike can be improved by setting cushion and increasing material properties of strong restraint zone. This study can provide a theoretical basis for the structural design of cemented sand gravel embankment.

关 键 词：胶结砂砾石 防洪堤 受力特征 基础 

分 类 号：TV41[水利工程—水工结构工程]