Consolidation theory for prefabricated vertical drains with elliptic cylindrical assumption

被引：27

作者：

Huang, Chaoxuan ^{[1
]}

Deng, Yuebao ^{[2
]}

Chen, Fei ^{[2
]}

机构：

[1] Zhejiang Design Inst Water Conservancy & Hydroele, Hangzhou 310002, Zhejiang, Peoples R China

[2] Ningbo Univ, Inst Geotech Engn, Ningbo 315211, Zhejiang, Peoples R China

来源：

COMPUTERS AND GEOTECHNICS | 2016年 / 77卷

基金：

中国国家自然科学基金;

关键词：

Consolidation theory; Prefabricated vertical drains; Elliptical cylindrical; Confocal elliptical coordinates; Analytical solution; EQUIVALENT DIAMETER;

D O I：

10.1016/j.compgeo.2016.04.015

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The consolidation process for PVD-imposed foundations is analysed using vertical drain theory, which was initially proposed for sand drain wells. This paper models a PVD as an elliptical cylindrical drainage body, which is more similar to the shape of a PVD. Basic equations for vertical drain consolidation under an elliptic cylindrical coordinate system are presented, and solutions of the excess pore water pressure and degree of consolidation are obtained. Comparisons between the newly presented solution and traditional solutions with different equivalent diameters are discussed. The traditional method with the perimeter equivalent model is found to overestimate the drainage effects of PVDs. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：156 / 166

页数：11

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