JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2014, Vol. 44 ›› Issue (4): 52-57.doi: 10.6040/j.issn.1672-3961.0.2014.142

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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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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

CLC Number: 

  • U451.2
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