Mechanism of Water Inflow of Subsea Tunnel Induced by Blasting Excavation

Yong Sheng Liu; Jian Guo Peng; Jing Hua Zhang; Li Xin Fu

doi:10.4028/www.scientific.net/AMM.353-356.1566

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 353-356Mechanism of Water Inflow of Subsea Tunnel Induced...

Mechanism of Water Inflow of Subsea Tunnel Induced by Blasting Excavation

Abstract:

Water inflow was the main damage during blasting excavation of subsea tunnel, disturbance due to blasting could also induce water inflow. Based on the blasting mechanism of water-bearing fractured rock-mass, stress state and breaking-down process of the fracture was analyzed, which was affected by dynamic stress field (blasting effect) and static stress field (water and in-situ stress). With the affect of overlapping dynamic and static stress field, the calculation formula of the critical inner water pressure in water inflow was presented. At last, using these formulas, critic water press and radial extent were calculated of water-bearing fractured rock-mass in Xiamen subsea tunnel.

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Periodical:

Applied Mechanics and Materials (Volumes 353-356)

Pages:

1566-1571

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.353-356.1566

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Online since:

August 2013

Authors:

Yong Sheng Liu, Jian Guo Peng, Jing Hua Zhang, Li Xin Fu

Keywords:

Blasting Excavation, Mechanism of Water Inflow, Subsea Tunnel, Water-Bearing Fractured Rock-Mass

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References

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