| 两种超前预支护技术控制地层沉降效果对比研究 |
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| 引用本文： | 高成雷,朱永全.两种超前预支护技术控制地层沉降效果对比研究[J].铁道标准设计通讯,2003(7):59-61. |
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| 作者姓名： | 高成雷 朱永全 |
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| 作者单位： | 石家庄铁道学院土木工程分院,河北石家庄050043 |
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| 摘 要： | 针对广州市城市街道人行隧道在施工过程中实测地表沉降量超出容许沉降量 ,为分析其原因和寻求更合理方案 ,利用三维有限元对该隧道的施工过程分别进行了实际方案和对比方案的计算模拟 ,通过计算结果的对比分析 ,指出原方案的不适用性 ,而采用水平旋喷桩对整个隧道周边地层进行加固处理则可以有效地控制地层沉降。
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| 关 键 词： | 隧道 超前预支护 三维有限元 地层沉降 |
| 修稿时间： | 2003年4月15日 |
A Comparative Study on Two Advance Pre-support Technologies for Ground Settlement Control |
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| Abstract: | In the construction of urban pedestrian tunnel of Guangzhou, the measured ground settlement value exceeded the permissible value. To find out the reason and seek more appropriate construction program, a simulation calculation was conducted to actual program and alternative program through three-dimensional finite element method. Comparative calculation result indicated the disadvantage of the original program, and pointed out that strengthening the surrounding ground by chemical churning pile may effectively control ground settlement. |
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| Keywords: | tunnel advance pre-support three-dimensional finite element ground settlement |
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