山西中南部铁路通道重载铁路隧道隧底加固方案研究
发布时间：2019-02-11 21:24
【摘要】：山西中南部铁路通道将开行30 t轴重列车,荷载计算与有限元数值分析表明,列车轴重增加后位于富水软弱围岩及土质地层段隧道基底应力增大,在列车活载反复作用下隧道底部易形成病害。本文论述了对已先期建成的隧道进行基底加固的必要性,论证了采用隧底注浆方案进行基底加固合理可行。
[Abstract]:A 30-ton axle load train will be operated in the railway passage of central and southern Shanxi Province. The load calculation and finite element numerical analysis show that the stress of the tunnel base in the section of soft surrounding rock and soil strata with rich water increases after the axle load of the train increases. Under the repeated action of train live load, it is easy to form disease at the bottom of the tunnel. This paper discusses the necessity of the foundation reinforcement of the tunnel that has been built in advance, and proves that it is reasonable and feasible to use the grouting scheme to reinforce the foundation.
【作者单位】： 中铁第四勘察设计院集团有限公司;
【分类号】：U457.3
[Abstract]:A 30-ton axle load train will be operated in the railway passage of central and southern Shanxi Province. The load calculation and finite element numerical analysis show that the stress of the tunnel base in the section of soft surrounding rock and soil strata with rich water increases after the axle load of the train increases. Under the repeated action of train live load, it is easy to form disease at the bottom of the tunnel. This paper discusses the necessity of the foundation reinforcement of the tunnel that has been built in advance, and proves that it is reasonable and feasible to use the grouting scheme to reinforce the foundation.
【作者单位】： 中铁第四勘察设计院集团有限公司;
【分类号】：U457.3
【参考文献】
相关期刊论文 前4条
1 王秀英;龚增进;刘维宁;;30t轴重条件下隧道技术标准研究[J];铁道工程学报;2009年05期
2 曾晖;胡俊;王效宾;;苏州地铁一号线联络通道加固方式比选研究[J];铁道建筑;2012年10期
3 邹，
本文编号：2420118
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