雅万高铁路基工程抗震设计研究  

Research on Seismic Design of Jakarta—Bandung High-speed Railway Subgrade Engineering

作　　者：张青波 崔维孝 刘东 ZHANG Qingbo;CUI Weixiao;LIU Dong(China Railway Design Corporation,Tianjin 300308,China)

机构地区：[1]中国铁路设计集团有限公司,天津300308

出　　处：《路基工程》2023年第4期1-5,共5页Subgrade Engineering

基　　金：中国铁路设计集团有限公司科技开发项目(721638)。

摘　　要：加强路基工程抗震设计是确保雅万高铁工程质量安全的重要方面。通过文献调研、对比规范、振动台试验和数值分析,结果显示:路基工程震害包括路基面变形或开裂、路基失稳、支挡结构变形或失效、崩塌、落石、滑坡;挡土墙和墙后填土均存在动力放大效应,土压力静分量数值和分布均较接近于库仑主动土压力理论值,地震土压力实测值大于M-O法理论值;墙高大于4m时可能产生共振;不同规范抗震设计参数不同,雅万高铁路基抗震设计采用规范《铁路工程抗震设计规范》(GB50111—2006),岩土参数取值时宜适当增加安全储备。Strengthening the seismic design of subgrade is an important aspect to ensure the quality and safety of Jakarta—Bandung high-speed railway engineering.Through literature research,comparative specifications,shaking table test and numerical analysis,the results show that seismic hazards of subgrade engineering include deformation or cracking of subgrade surface,subgrade instability,deformation or failure of support structure,collapse,rockfall and landslide.Dynamic amplification effect exists in both retaining wall and backfill.The static component value and distribution of earth pressure are relatively close to the theoretical value of Coulomb active earth pressure,and the measured value of seismic earth pressure is greater than the theoretical value of M-O method.Resonance may occur when the wall height is greater than 4m.The seismic design parameters of different specifications are different.The seismic design of Jakarta—Bandung high-speed railway subgrade adopts the specification of Code for Seismic Design of Railway Engineering(GB 50111—2006),and when choosing geotechnical parameters,the safety reserve should be increased appropriately.

关 键 词：铁路路基 抗震设计 振动台试验 挡土墙 雅万高铁 

分 类 号：U211.9[交通运输工程—道路与铁道工程]