Technology for Preventing Seepage and Slide of a Stone Seawall in the Pearl River Estuary

Ting Zhang; Guang Hua Yang; Si Ping Li; Xiu Zhong Du; Chuan Li

doi:10.4028/www.scientific.net/AMM.501-504.1968

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Technology for Preventing Seepage and Slide of a Stone Seawall in the Pearl River Estuary
p.1968

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 501-504Technology for Preventing Seepage and Slide of a...

Technology for Preventing Seepage and Slide of a Stone Seawall in the Pearl River Estuary

Abstract:

The rubble mound seawall to be discussed is built on the silted floor of the Pearl River estuary. To meet the requirements of wave defending, stability and anti-seepage, foundation replacement method was used to enhance its groundsill and geomembrane was laid on the downstream slope for seepage control. However, because the silted floor in the foundation wasnt totally removed in the construction process, settlement deformation occured and the downstream slopes trended to slide down. Furthermore, due to the insufficient back pressure for seepage control, serious leakages and piping appeared on the anti-seepage body. The water leakage phenomenon showed little improvement even after additional cement grouting and plastering on the slope. In this paper, a seepage pressure stick slope reinforcement scheme is proposed to handle this problem. After the reinforcement, the water leakage has been prevented and the safety factors of the seepage and slope meets the safety requirements. The pollution caused by the seepage is also eliminated. The proposed technique can give a good reference to the other seawall reinforcement problems.

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Periodical:

Applied Mechanics and Materials (Volumes 501-504)

Pages:

1968-1972

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.501-504.1968

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Online since:

January 2014

Authors:

Ting Zhang, Guang Hua Yang, Si Ping Li, Xiu Zhong Du, Chuan Li

Keywords:

Seawall, Seepage, Soft Soil Foundation, Stability

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References

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