摘要
路基沉降直接导致无祚轨道结构发生几何变形,过大的路基沉降甚至会破坏轨道结构,影响列车的行车安全。因此,如何控制无祚轨道路基沉降是工程界非常重视的问题之一。本文以弥勒有轨电车路基沉降控制为实例,对路基沉降原因及控制方法进行探讨,结合地质勘察资料及工程经验,采取软土地基换填、强化基床结构层及板式无祚轨道结构预留沉降处理条件等方法,有效控制了弥勒有轨电车路基工后沉降,为相关工程提供借鉴和参考。
Subgrade settlement directly leads to geometric deformation of the ballastless track structure, and excessive roadbed settlement may even damage the track structure and affect the train safety. Therefore, how to control the settlement of ballastless track subgrade is one of the issues that attaches great importance among the engineering community.Taking the subgrade settlement control of Maitreya tram as an example, this paper discusses the causes and control methods of subgrade settlement, and combines geological survey data and engineering experience to adopt methods including soft soil foundation replacement, strengthening bed structure layer and reserved settlement treatment of slab ballastless track structure that effectively control the post-construction settlement of the Maitreya tram subgrade. The analysis provides reference for related projects.
作者
李彬
骆飞
LI Bin;LUO Fei(Guangzhou Tram Limited Liability Company,Guangzhou 510220)
出处
《广州建筑》
2019年第3期32-35,共4页
GUANGZHOU ARCHITECTURE
关键词
有轨电车
路基沉降
基床结构
板式无祚轨道
tramway
subgrade settlement
bed structure
slab ballastless track
