| 钢管预加固措施对隧洞围岩变形的影响分析 |
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| 引用本文： | 李松柏,方理刚,李宏泉.钢管预加固措施对隧洞围岩变形的影响分析[J].岩土力学,2006,27(2):327-331. |
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| 作者姓名： | 李松柏 方理刚 李宏泉 |
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| 作者单位： | 1. 中南大学 铁道校区土木建筑学院，长沙 410075；2. 湖南省交通规划勘察设计院，长沙 410008 |
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| 摘 要： | 隧道洞口段埋深浅，围岩松散，自稳能力较差，开挖后洞内及地表均出现多条裂缝。经方案比选，采用钢花管对洞顶及两侧部分的地表和隧道地基与拱脚部位进行注浆加固。在注浆加固施工的过程中，隧洞内也同时开挖，几种工序的施工扰动产生叠加，势必对隧道的稳定及安全产生影响。结合工程实践，对洞内开挖及地表注浆工况并结合隧道监测数据进行分析，得出一些初步结论。
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| 关 键 词： | 注浆加固 隧道开挖 监测 围岩变形。 |
| 文章编号： | 1000-7598-（2006）02-0327-05 |
| 收稿时间： | 2004-06-29 |
| 修稿时间： | 2004-11-15 |
Analysis of influence of steel tube pre-reinforced construction on tunnel rock deformation |
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| LI Song-bai,FANG Li-gang,LI Hong-quan.Analysis of influence of steel tube pre-reinforced construction on tunnel rock deformation[J].Rock and Soil Mechanics,2006,27(2):327-331. |
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| Authors: | LI Song-bai FANG Li-gang LI Hong-quan |
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| Institution: | 1. Department of Civil Engineering, Central South University, Changsha 410075, China; 2. Hunan Provincial Design Institute for Communications Planning & Survey, Changsha 410008, China |
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| Abstract: | In the entrance zone of the tunnel with fleet mantle soil, loose and unstable wall rock, many slits appeared during the excavation. Through comparing several schemes, steel tube-grouting was adopted to reinforce the wall rock and the foundation of the tunnel. While grouting construction began, excavation also carded through inside the tunnel. This will unavoidably affect the stability and safety of the tunnel. Therefore, a practical project is offered and the monitoring data are analysed under the circumstance of several working procedure affected each other. Some preliminary conclusions are drawn. |
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| Keywords: | grouting reinforcement tunnel excavation monitoring wall rock deformation |
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