Prestressed Anchor Bolt Impact on the Deformation of Composite Soil Nailing

Abstract:

Finite element software was employed to establish a model to simulate the compound soil nailing. The model simulates the process of constructing prestressed compound soil nailing. Compared the condition prestressed with no prestress, analyzed the Impact of prestress anchor on the deformation in the process of construction and the effect on axial force of soil nail. Applying prestress is able to control the horizontal displacement obviously, but has not obvious effect on vertical displacement, especially place the anchor bolt at the lower part of the slope. In the process of construction, prestress has an advance effect on the deformation of foundation pit and the axial force of soil nails near the anchor bolt.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 11-15
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.11
• Online since: August 2013
• Authors: Deng Qun Wang, Yan Peng Zhu
• Keywords: Composite Soil Nailing, Construction, Deformation, Impact, Pre-Stress

References

[1] Zhiyin Yang, Jun Zhang, Kaixu Wang．Development of composite soil nailing walls. Chinese Journal of Geotechnical Engineering, Vo1．27, pp.153-156, Feb 2005(In Chinese).

[2] Haishen Li. working performance research of Composite soil nailing. Doctoral Dissertation of Hunan University, pp.70-81, April 2004(In Chinese).

[3] Degang Zhao, HongJiang. Deformation and stability analysis of composite soil-nailed walls. Chinese Journal of Geotechnical Engineering, Vol. 28, pp.1687-1690, November 2006(In Chinese).

[4] Hongpu Kang, Tieming Jiang. Fuqiang Ga0. Effect of pretensioned stress to rock bolting. Journal 0f China Coal Society, Vo1. 32, pp.680-685, July 2007(In Chinese).

[5] Qinag Xie. 3D finite element analysis Based on elastoplastic deformation of the composite soil nailing in deep excavation. Master degree thesis of Lanzhou University of Technology, june 2007 (In Chinese).

[6] Liansheng Tang, Mingjian Song. Analysis of stress and deformation of prestressed anchor cable composite soil nailing. Chinese Journal of Rock Mechanics and Engineering, Vo1．27, pp.410-417, February 2008(In Chinese).

[7] Zhongcheng Wu, Liansheng Tang. FLAC-3D simulation of deep excavation with compound soil nailing support. Chinese Journal of Rock Mechanics and Engineering, Vol. 28, pp.1460-1465. November 2006(In Chinese).

[8] Cheng Dong, Yingren Zheng. Research On composite support pattern of soil nails and prestressed anchors in deep foundation pits. vol. 30, pp.3793-3797, December 2009(In Chinese).

[9] Guanghua Yang, Hongwei Huang. Simplified incremental calculation method of soil nail forces for retaining and protection of foundation pits, Rock and Soil Mechanics, Vo1. 25, pp.15-19, January 2004(In Chinese).