加筋格宾新型组合支挡结构设计研究  

Study on Design of New Compound Supporting and Retaining Structure with Reinforced Gabion

作　　者：黄向京[1,2] 许桂林[2] 王维[1] 

机构地区：[1]湖南省交通规划勘察设计院,长沙410008 [2]中南大学土木建筑学院,长沙410075

出　　处：《防灾减灾工程学报》2010年第3期262-268,286,共8页Journal of Disaster Prevention and Mitigation Engineering

基　　金：湖南省交通厅项目(200612);湖南省科技厅项目(06ck3030)资助

摘　　要：依托湖南省湘潭至衡阳西线高速公路K 124＋300～K 124＋895段国内首座加筋格宾组合式挡土墙工程,介绍了以双绞合六边形金属网为筋材的2种新型加筋支挡结构：加筋格宾结构与绿色加筋格宾结构;以极限平衡理论为基础,吸收国外先进加筋土技术,提出了该组合结构的稳定性验算方法与公式;编制相关程序,深入研究了填料粘聚力、内摩擦角、网面拉力、地震力、填土重度、车辆荷载以及加筋间距等重要参数对安全系数的影响。研究表明,各设计参数对安全系数的影响程度不同。同时,也验证了该加筋格宾组合式挡土墙设计的科学性和合理性。研究成果可应用于具体支挡结构设计。Based on the first expressway reinforced gabion retaining wall in China（reinforced earth engineering of Xiangtan to Hengyang express highway section of K124＋300～K124＋895 in Hunan province）,two new retaining structure types（the reinforced gabion retaining wall and the green reinforced gabion retaining wall）are presented.Utilizing limit equilibrium theory and widely absorbing foreign advanced reinforced earth technology,the checking method for external and internal stability of these compound structures is put forward and corresponding computer programs are developed to research the influences of cohesion c,internal friction angle φ,tension,earthquake force,gravity density and vehicle load on safety factor.Results show that the influence degrees of design parameters on safety factor are different from each other.Meanwhile,it also proves that the design of this reinforced gabion retaining wall is scientific and reasonable.Thus it can be effectively used as guideline for engineering-oriented design.

关 键 词：绿色加筋格宾 组合式挡土墙 安全系数法 工程设计 

分 类 号：TU413.62[建筑科学—岩土工程]