铁道标准设计2017，Vol.61Issue(5)：58-61,4.DOI:10.13238/j.issn.1004-2954.2017.05.013
某高速铁路路基帮宽段沉降控制方案研究
Research on Settlement Control Scheme for High
胡润乾1
作者信息
- 1. 铁道第三勘察设计院集团有限公司,天津 300251
- 折叠
摘要
Abstract
Settlement control has been an important part of high-speed railway design and construction, but less study is conducted at home and abroad on the settlement influence of the widened subgrade.Based on engineering practices, this paper studies the settlement control scheme for existing high-speed railway subgrade after widening, simulates the existing subgrade reinforcing effect contributed by rotary jet grouting pile and steel micro-pile with normal filling material or lightweight concrete by means of the finite element software Midas GTS-NX.In view of the rationality of construction technology, it is finalized to use steel micro-pile+lightweight concrete in this engineering project.At the same time, considering the construction influence, it is recommended to slow down the piling speed during the construction near the existing line, limit the traffic speed and conduct real-time monitoring on this high-speed railway.关键词
高速铁路/无砟轨道/路基帮宽/数值模拟Key words
High-speed railway/Ballastless track/Widened subgrade/Numerical simulation分类
交通工程引用本文复制引用
胡润乾..某高速铁路路基帮宽段沉降控制方案研究[J].铁道标准设计,2017,61(5):58-61,4.
