THE ANALYTICAL SOLUTION AND FINITE-DIFFERENCE SOLUTION OF INTERNAL FORCES AND DEFORMATION DUE TO LOGARITHMIC SUBSIDENCE OF BURIED BEAMS CAUSED BY DEWATERING

YANG Jianmin; WANG Linjie

doi:10.13204/j.gyjz202006016

Volume 50 Issue 6

Aug. 2020

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YANG Jianmin, WANG Linjie. THE ANALYTICAL SOLUTION AND FINITE-DIFFERENCE SOLUTION OF INTERNAL FORCES AND DEFORMATION DUE TO LOGARITHMIC SUBSIDENCE OF BURIED BEAMS CAUSED BY DEWATERING[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(6): 98-104. doi: 10.13204/j.gyjz202006016

Citation:

YANG Jianmin, WANG Linjie. THE ANALYTICAL SOLUTION AND FINITE-DIFFERENCE SOLUTION OF INTERNAL FORCES AND DEFORMATION DUE TO LOGARITHMIC SUBSIDENCE OF BURIED BEAMS CAUSED BY DEWATERING[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(6): 98-104. doi: 10.13204/j.gyjz202006016

Citation:

YANG Jianmin, WANG Linjie. THE ANALYTICAL SOLUTION AND FINITE-DIFFERENCE SOLUTION OF INTERNAL FORCES AND DEFORMATION DUE TO LOGARITHMIC SUBSIDENCE OF BURIED BEAMS CAUSED BY DEWATERING[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(6): 98-104. doi: 10.13204/j.gyjz202006016

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THE ANALYTICAL SOLUTION AND FINITE-DIFFERENCE SOLUTION OF INTERNAL FORCES AND DEFORMATION DUE TO LOGARITHMIC SUBSIDENCE OF BURIED BEAMS CAUSED BY DEWATERING

doi: 10.13204/j.gyjz202006016

YANG Jianmin^1,2,
WANG Linjie¹

1. School of Civil Engineering, Tianjin University, Tianjin 300350, China;
2. Key Laboratory of Coast Civil Structure Safety(Tianjin University), Ministry of Education, Tianjin 300350, China

Received Date: 2019-09-13
Publish Date: 2020-08-20

Abstract

Abstract

Stratum subsidence due to dewatering will cause damage to buried beams such as municipal pipelines, underground pipe galleries and subway tunnels. With the increase of time and dewatering, the damage of being gradually aggravated will affect the safety. Based on the formula of logarithmic stratum settlement curve and the theory of elastic foundation beam, the analytical solutions for deformation and internal forces of buried beams were deduced, and a numerical solution was the obtained by the finite difference method. The results of examples showed that the analytical solution was much in accord with the numerical solution. These two solutions were verified by the calculating results of PLAXIS 3D FEM. The analytical solution was used to analyze the effect of parameters on deformation and internal forces of buried beams. The slope of the stratum subsidence funnel had the greatest effect on buried beams. Reducing the stratum subsidence funnel grade could reduce the damage to buried beams.
- logarithmic subsidence,
- stratum subsidence,
- buried beam,
- deformation,
- internal force

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References(13)

References

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