| 某运营地铁区间浮置板道床隆起原因分析及整治措施 |
| |
| 引用本文： | 李丰果,俞建铂.某运营地铁区间浮置板道床隆起原因分析及整治措施[J].隧道建设,2015,35(5):463-467. |
| |
| 作者姓名： | 李丰果 俞建铂 |
| |
| 作者单位： | （1. 中铁隧道集团有限公司盾构及掘进技术国家重点实验室， 河南郑州 450001; 2． 中铁隧道集团三处有限公司， 广东深圳 518052） |
| |
| 摘 要： | 某已运营近2年的地铁区间浮置板道床出现隆起、下沉情况,针对该类型道床隆起原因及处理方法进行了分析,确认浮置板道床基层与仰拱填充层之间存在空腔,地下水在空腔中形成压力,导致道床发生隆起。为了防止道床面继续发生隆起,采取了钻孔放水降压、注浆填充空腔、将道床及衬砌与基岩锚拉等措施对浮置板道床进行综合治理,达到了预期治理目的。
|
| 关 键 词： | 地铁 浮置板道床 隆起 排水 注浆 锚拉 |
| 收稿时间： | 2014-11-06 |
Case Study on Causes and Countermeasures for Heaving of Slab Track Bed in a Running Metro Tunnel |
| |
| LI Fengguo,YU Jianbo.Case Study on Causes and Countermeasures for Heaving of Slab Track Bed in a Running Metro Tunnel[J].Tunnel Construction,2015,35(5):463-467. |
| |
| Authors: | LI Fengguo YU Jianbo |
| |
| Institution: | （1. State Key Laboratory of Shield and Boring Technology, China Railway Tunnel Group Co., Ltd., Zhengzhou 450001, Henan, China; 2. The Third Engineering Co., Ltd., China Railway Tunnel Group, Shenzhen 518052, Guangdong, China） |
| |
| Abstract: | Heaving and settlement occur to the track bed of a running Metro tunnel, which has been in service for almost 2 years. In the paper, the causes and countermeasures for the heaving of the track bed are analyzed. It is concluded that there is a gap between the track bed cushion layer and the invert filling layer, the water at the gap results in pressure and causes the track bed heaving. Countermeasures, including water releasing and pressure reducing by means of borehole drilling, gap filling by means of grouting, reinforcing track bed, lining and surrounding rock by means of tie bolting, are taken. In the end, good treatment effect has been achieved. |
| |
| Keywords: | Metro slab track bed heaving drainage grouting tie bar |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《隧道建设》浏览原始摘要信息 |
| 点击此处可从《隧道建设》下载免费的PDF全文 |
|
