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| 小净距隧道施工小导管注浆效果的数值模拟分析 | |
| 引用本文： | 晏启祥,何川,姚勇,邓刚.小净距隧道施工小导管注浆效果的数值模拟分析[J].岩土力学,2004,25(Z2):239-242. |
| 作者姓名： | 晏启祥 何川 姚勇 邓刚 |
| 作者单位： | 1. 西南交通大学,地下工程系,四川,成都,610031 2. 西南交通大学,地下工程系,四川,成都,610031;西南科技大学,土木工程学院,四川,绵阳,621002 3. 四川省交通厅公路规划勘察设计研究院,四川,成都,610041 |
| 基金项目： | 西部交通建设科技项目(No.200331878012) |
| 摘 要： | 利用有限差分法,对软弱围岩小净距隧道进洞施工中两种小导管注浆加固范围的加固效果进行了对比分析,揭示了施工过程中两种加固范围对隧道周边变形和应力的影响.研究结果表明增加对雁形部上部范围加固的方案较仅加固中间岩柱的方案有利于施工的安全. |
| 关 键 词： | 小净距隧道 小导管注浆 加固范围 有限差分法 |
| 文章编号： | 1000-7598-(2004)增-0239-04 |
| 修稿时间： | 2004年4月30日 |
Numerical simulation analysis of little tremie grouting effect while construction of going into portal at small-distance tunnel |
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| YAN Qi-xiang,HE Chuan,YAO Yong,DENG Gang.Numerical simulation analysis of little tremie grouting effect while construction of going into portal at small-distance tunnel[J].Rock and Soil Mechanics,2004,25(Z2):239-242. | |
| Authors: | YAN Qi-xiang HE Chuan YAO Yong DENG Gang |
| Institution: | YAN Qi-xiang1,HE Chuan1,YAO Yong1,2,DENG Gang3 |
| Abstract: | Effect contrast of two reinforcing scope of employing little tremie grouting into construction of going into portal at small-distance tunnel by use of finite difference method is analyzed; and the influences of two reinforcing scope on the displacement and stress of peripheral rock of tunnel at course of construction are discovered. The result shows that the scheme of adding reinforcement to Yanxing part gets more safety over another scheme of adopting reinforcement only on middle rock between small-distance tunnels |
| Keywords: | small-distance tunnel little tremie grouting reinforcing scope finite difference method |
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