铁路路基挡土墙结构由容许应力法转换为极限状态法的试设计比较分析  

Comparative Analysis of Trial Design for Railway Subgrade Retaining Wall Structure Transition from Allowable Stress Design to Limit State Design

作　　者：黄新智[1] 金阳 HUANG Xinzhi JIN Yang(China Railway First Survey and Design Institute Group Co., Ltd., Xi＇an Shaanxi 710043, China Xi＇an Railway Survey and Design Institute Co., Ltd., Xi＇an Shaanxi 710054, China)

机构地区：[1]中铁第一勘察设计院集团有限公司,陕西西安710043 [2]中铁西安勘察设计研究院有限责任公司,陕西西安710054

出　　处：《铁道建筑》2017年第4期80-82,共3页Railway Engineering

摘　　要：通过运用容许应力法与极限状态法2种不同设计方法,对铁路路基实际工点中的重力式挡土墙进行试设计,并对设计计算结果进行比较、分析,提出2种设计方法的优缺点以及容许应力法向极限状态法转变的可行性与必要性。最后,分析了设计计算过程中存在的问题,并对《铁路路基极限状态法设计暂行规范》(Q/CR 9127—2015)中重力式挡土墙部分分项系数的修改完善提出相关建议。The trial design of gravity retaining wall in actual project of railway subgrade was implemented by using two different design methods which were allowable stress design method and limit state design method.The design calculation results were compared and analyzed,the advantages and disadvantages of these two design methods were discussed,and the feasibility and necessity of the transition fromallowable stress design method to limit state design method were proposed.The problems in the design calculation process were analyzed,and relevant suggestions for modification scheme of partial coefficient of gravity retaining wall in Interimcode for limit state design of railway subgrade（Q/CR9127—2015） were put forward.

关 键 词：铁路路基 容许应力法 极限状态法 重力式挡土墙 

分 类 号：U213.152.2[交通运输工程—道路与铁道工程]