Study on Earth Pressure and Engineering Properties of Solid Waste during Foundation Pit Excavation

Yan Zhang; Xiu Li Feng; Tao Liu

doi:10.4028/www.scientific.net/AMM.353-356.790

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 353-356Study on Earth Pressure and Engineering Properties...

Study on Earth Pressure and Engineering Properties of Solid Waste during Foundation Pit Excavation

Abstract:

A mechanical behavior of solid waste during foundation pit excavation is discussed on the base of the in-situ monitoring results of earth pressure and field measured data in solid waste. During excavation, the soil strength increases, which is mostly because of the variances of characteristics of soil in unloading state. Measurement of earth pressure is less than computation, and the value gradually decreases during excavation. In the end, it tends to be stable or slightly higher than the minimum. Compared with soft soil, the change is not only related to the deformation but also the change of soil property, especially, the influence of fiber to the shear strength of solid waste. By analyzing changing characteristics of earth pressure in solid waste, from the surface of earth within 0m~5m, experience value of lateral earth pressure coefficient is 0.35 during excavation and 0.25 after excavation, and within 5m~10m, the value is 0.55 during excavation and 0.45 after excavation.The conclusions will provide the reference for future similar projects.

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Periodical:

Applied Mechanics and Materials (Volumes 353-356)

Pages:

790-794

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.353-356.790

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Online since:

August 2013

Authors:

Yan Zhang*, Xiu Li Feng, Tao Liu

Keywords:

Earth Pressure, Harden Type, Solid Waste, Stress-Strain Relationship

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References

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