Study on Measures to Retain the Deep Foundation Pit for Soil-Rock Composition with Weak Intercalated Layers

Abstract:

Aiming at a deep foundation pit in soil-rock composition with weak intercalated layers, in this paper, using the limit-balance method and finite element method to analyze the stability and deformation. The safety factor of foundation pit under the absence of retaining is much less than 1 through the limit-balance method, but through some retaining measures can guarantee its safety. According to the excavation of the foundation pit in special geological conditions, it takes pile-anchor retaining structure in upper and soil nailing in the lower part. Using the finite element to carry out dynamic simulation for the whole project, the results show that: this form of retaining can be very good to ensure the excavation of the foundation pit in the geological conditions, and it may be helpful for similar projects

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 373-377
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.373
• Online since: September 2013
• Authors: Jing Wang, Feng Ming Sun, Jin You Chen, Chang Jie Xu
• Keywords: Deep Foundation Pit, Limit Balance Method, Numerical Simulation, Soil-Rock Composition, Weak Intercalated Layers

References

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