Study on the Blasting Excavation Method of Urban Shallow Tunnel

Abstract:

The construction method requires careful consideration in order to reduce impact of tunnel on the surface of the building in the city. It can have great significance in choosing appropriate blasting excavation method for the poor surrounding rock conditions and complicated ground constructions of shallow buried tunnel. This paper combines the Guanhui urban railway transport projects which the shallow buried tunnel through the dense residential areas, research on the influence of CD method and bench method with reserved core soil when use blasting excavation method on the surface buildings by finite element method. The suitability of two kinds of blasting excavation method in the urban shallow tunnels is analyzed and compared, eventually determine the CD method with blasting excavation is more suitable for the urban shallow tunnel construction, it provides reference and suggestion for future similar construction methods that tunnel construction under the city.

• Periodical: Applied Mechanics and Materials (Volumes 580-583)
• Pages: 1051-1055
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.580-583.1051
• Online since: July 2014
• Authors: Zi Qiang Li*, Zheng Li
• Keywords: Bench Method with Reserved Core Soil, Blasting Construction, Cd Method, Shallow-Underground Cut Method, Urban Tunnel

References

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