| 基于镜像法和相似理论的隧道地表沉降研究 |
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| 引用本文： | 刘联伟,王修春. 基于镜像法和相似理论的隧道地表沉降研究[J]. 施工技术, 2009, 38(1) |
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| 作者姓名： | 刘联伟 王修春 |
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| 作者单位： | 1. 中国矿业大学,江苏徐州,221008
2. 广东省基础工程公司,广东广州,510660 |
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| 摘 要： | 隧道开挖引起的地表沉降主要由地层损失引起.在球孔扩张理论的基础上,采用镜像法推导了隧道地表沉降计算公式,可分析在地层损失、埋深、开挖推进距离以及观测点空间位置等不同因素影响下地表沉降的连续动态变化;同时结合上述地表沉降的影响因素和相似理论,通过相似准则之间的函数关系反映地表沉降规律;最后结合工程实测数据对计算公式进行验证,结果表明计算公式较好地体现了地表沉降规律.
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| 关 键 词： | 隧道 地表沉降 地层损失 球孔扩张理论 镜像法 相似准则 |
Research on Tunnel Ground Settlement Based on Image Method and Similar Theory |
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| Liu Lianwei,Wang Xiuchun. Research on Tunnel Ground Settlement Based on Image Method and Similar Theory[J]. Construction Technology, 2009, 38(1) |
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| Authors: | Liu Lianwei Wang Xiuchun |
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| Affiliation: | 1.China University of Mining and Technology;Xuzhou;Jiangsu 221008;China;2.Guangdong Province Foundation Engineering Company;Guangzhou;Guangdong 510660;China |
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| Abstract: | Ground settlement induced by tunnel excavation is mainly caused by ground loss.The formula for calculating ground settlement is inferred by image method based on sphere-hole expansion theory.The formula is used to analyze continuous dynamic changes of soil subsidence under the influence of different factors such as ground loss,buried depth,excavation distance and space location of observation points.At the same time,combining with the mentioned influence factors and similar theory,ground settlement rules ca... |
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| Keywords: | tunnel ground settlement ground loss sphere-hole expansion theory image method similarity criterion |
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