| 合福铁路浅埋偏压隧道溜坍分析及整治方案研究 |
| Cause Analysis and Remediation Scheme of Collapse in Shallow Embedded Bias Tunnel of Hefei Fuzhou Passenger Railway |
| 投稿时间：2013-01-14 |
| 中文关键词:浅埋偏压隧道 溜坍 整治方案 有限元 |
| 英文关键词:shallow embedded bias Tunnel collapse finite element modeling remediation scheme |
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| 中文摘要: |
| 以合福铁路客运专线浅埋偏压隧道为例，对其溜坍事故原因进行分析，研究提出施工整治方案并对实施效果进行评价。首先,通过现场调研与有限元模拟对事故原因进行分析，结果显示,该隧道施工过程受力复杂，软弱围岩自稳性差，洞口临时支护不足及施工期发生强降雨是本次事故的主要原因。然后，结合工程实际和有限元模拟结果提出了加强支护、减少开挖步长等具体整治措施。后续施工中隧道围岩变形收敛较快，洞口稳定得到有效控制，开挖进展顺利，表明该整治方案合理可行。研究思路和方法可为同类工程施工和事故处理提供参考。 |
| 英文摘要: |
| The causes for the collapse of shallow embedded bias tunnel in Hefei Fuzhou Passenger Railway are analyzed and remediation scheme are put forward and tested. The site investigation and finite element simulation analysis are employed in analyzing the causes of the collapse. The results show that the surrounding rock risking in a complex load condition, its weak stability, and rain during the construction are the main causes. Then, according to the site conditions and the results of finite element simulation analysis, a remediation scheme, including strengthening the support and reducing the excavation steps, is proposed. The construction afterwards shows that the strain of the tunnel is controlled within reasonable range, and the construction of the tunnel goes through successfully. The methods of the study may provide certain references for similar projects construction and accidents handling. |
| 陈涛.合福铁路浅埋偏压隧道溜坍分析及整治方案研究[J].石家庄铁道大学学报：自然科学版,2013,(2):56-60. |
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