Influence of Engineering Dewatering on Soft Soil’s Density Characteristics

Hua Yuan; Yun Hua Li; Jian Wei Zhang

doi:10.4028/www.scientific.net/AMM.170-173.56

Paper Titles

Calculation of Elastic Induced Stress of Surrounding Rocks
p.37

Dewatering Efficiency Comparison between Vacuum Tube Well and Normal Tube Well in Silty Clay Layer
p.41

Optimization and Sensitivity Analysis on Estimated Parameters for Slope Engineering
p.46

Study on the Settlement Characteristics of Inclined Single Pile Subjected to Inclined Loadings
p.52

Influence of Engineering Dewatering on Soft Soil’s Density Characteristics
p.56

On the Bearing Capacity Parameters of a Single Pile of Hammering Sunk Shaft Rammer Pile
p.60

The Improved Soil Model of Finite Compressible Layer
p.64

Floor Heave Controlling Technology of Deep Soft Rock Roadway
p.68

Foundation Bearing Capacity Should Include Deformation in the Design
p.72

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 170-173Influence of Engineering Dewatering on Soft Soil’s...

Influence of Engineering Dewatering on Soft Soil’s Density Characteristics

Abstract:

The change of Shanghai soft soil’s density with drainage time during foundation pit dewatering was investigated, through taking samples in each soil layer to be laboratory tested after the groundwater level of observation hole in project site had been lowered below the position soil sampled for at least 5 days. Experimental results show that groundwater included in drainage zone couldn’t be discharged immediately with the drop of groundwater table, which may be named as “lag draining” phenomenon; soil’s water-holding density can also be deduced from soil saturated density and specific field except directly measured from laboratory test. The effect of engineering pumping will reduce the discrete of soil density distribution; a centralized distribution of soil density emerges after dewatering.

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Periodical:

Applied Mechanics and Materials (Volumes 170-173)

Pages:

56-59

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.170-173.56

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Online since:

May 2012

Authors:

Hua Yuan, Yun Hua Li, Jian Wei Zhang

Keywords:

Dewatering, Lag Draining Phenomenon, Soft Soil, Specific Yield, Water-Holding Density

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