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山东大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (4): 52-57.doi: 10.6040/j.issn.1672-3961.0.2014.142

• 土木工程 • 上一篇    下一篇

水平旋喷桩在富水砂层浅埋暗挖隧道中的应用

周前, 赵德刚   

  1. 广州地铁设计研究院有限公司, 广东 广州 510000
  • 收稿日期:2014-05-19 修回日期:2014-07-02 发布日期:2014-05-19
  • 作者简介:周前（1981-），男，山东济宁人，工程师，硕士，主要研究方向为隧道与地下工程.E-mail：zhouqian_hit@163.com

Application of the horizontal jet grouting pile in water-bearing sandy layer of shallow excavating tunnel

ZHOU Qian, ZHAO Degang   

  1. Guangzhou Metro Design & Research Institute Co., Ltd, Guangzhou 510000, Guangdong, China
  • Received:2014-05-19 Revised:2014-07-02 Published:2014-05-19

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摘要： 针对深圳某浅埋暗挖隧道穿越富水砂层的施工过程进行三维数值模拟分析，讨论了暗挖隧道在有、无水平旋喷桩超前支护措施时，围岩、支护的变形及应力变化规律。结合现场地面、初支量测成果，对数值模拟分析结果进行了验证、对比，得出水平旋喷桩超前支护对控制地面沉降、支护变形及支护应力效果显著。分析了现场水平旋喷桩施工存在的问题，有针对性的提出了解决方案与发展方向。所得结论为暗挖隧道的顺利施工提供了可靠依据，可为类似地质条件、结构形式的暗挖隧道设计、施工提供借鉴。

关键词: 水平旋喷桩, 数值模拟, 监控量测, 富水砂层, 浅埋暗挖隧道

Abstract: The construction process of a shallow buried tunnel crossing the water rich sand layer was analyzed in Shenzhen by 3-D numerical simulation, the deformation and the stress of the surrounding rock were discussed under the circumstances of using horizontal jet grouting pile or not in the process of excavating. Based on the numerical simulation and the measurement results, a conclusion could be drawn that the application of the horizontal jet grouting pile had significant effect in controlling the deformation, the subsidence of support and the stress of support. Furthermore, some solutions were put forth to some problems in the construction of horizontal jet grouting pile and the direction of the development. The obtained conclusions could provide experience and numerical support for the design and construction of the similar situation.

Key words: water-bearing sandy layer, horizontal jet grouting pile, shallow excavating tunnel, numerical simulation, monitoring and measurement

中图分类号: 

  • U451.2
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