ANALYSIS OF NEGATIVE PRESSURE DISTRIBUTION OF VERTICAL DRAINAGE CHANNELS FOR STABILIZATION OF ROADBED BY VACUUM PRELOADING

Wang Xinghua; Lei Ming

doi:10.13204/j.gyjz201010019

Volume 40 Issue 10

Dec. 2014

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Wang Xinghua, Lei Ming. ANALYSIS OF NEGATIVE PRESSURE DISTRIBUTION OF VERTICAL DRAINAGE CHANNELS FOR STABILIZATION OF ROADBED BY VACUUM PRELOADING[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(10): 86-90. doi: 10.13204/j.gyjz201010019

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Wang Xinghua, Lei Ming. ANALYSIS OF NEGATIVE PRESSURE DISTRIBUTION OF VERTICAL DRAINAGE CHANNELS FOR STABILIZATION OF ROADBED BY VACUUM PRELOADING[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(10): 86-90. doi: 10.13204/j.gyjz201010019

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ANALYSIS OF NEGATIVE PRESSURE DISTRIBUTION OF VERTICAL DRAINAGE CHANNELS FOR STABILIZATION OF ROADBED BY VACUUM PRELOADING

doi: 10.13204/j.gyjz201010019

Wang Xinghua¹,
Lei Ming^1,2

1.
1. Civil Engineering College,Central South University,Changsha 410075,China;
2.
2. Civil Engineering Department,Changsha University,Changsha 410003,China

Received Date: 2010-05-12
Publish Date: 2010-10-20

Abstract

Abstract

Three negative pressure distribution modesline mode,parabola mode and exponent mode were respectively applied in the vertical drainage channels of the vacuum preloading test section of Beijing-Shanghai High-Speed Railway under identical conditions.Finite element simulation was made in calculation of the consolidation process of roadbed.The calculation results were compared with measured data.Differences of calculation results were found with the above mentioned three distribution modes.Reasons causing the differences between calculation results and measured data of the three distribution modes were analyzed.Analysis results show that,it is not very rational that negative pressure linearity-decrease from one value to zero or the other value along up-to-down vertical drainage channels.This will cause too much difference between calculation results and measured values.The negative pressure distribution mode of exponent type is commended to apply in silts.But the negative pressure distribution mode of line type is available to the vertical drainage channels in crust up silt.
- vertical drainage channels,
- numerical analysis,
- vacuum preloading,
- negative pressure distribution

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References(8)

References

[2] 雷鸣,王星华,夏力农.真空预压数值分析中竖向排水通道的讨论[J].铁道学报,2009,31(1):78.

龚晓南,岑仰润.真空预压加固地基若干问题[J].地基处理,2002,13(4):11.

[3] 岑仰润.真空预压加固地基的试验及理论研究[D].浙江:浙江大学,2003.

[4] 谢康和.砂井地基固结理论数值分析与优化设计[D].浙江:浙江大学,1987.

[5] Biot A.General Theory of Three-Dimensional Consolidation[J].J.of Applied Phys.,1941(12).

[6] 赵维炳,陈永辉,龚友平.平面应变有限元分析中砂井的处理方法[J].水利学报,1998,29(6).

[7] 《地基处理手册》编写委员会.地基处理手册[M].北京:中国建筑工业出版社,1988.

[8] JGJ 79-2002 建筑地基处理技术规范[S]

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