On the modelling of piping erosion

被引：55

作者：

Bonelli, Stephane

Brivois, Olivier

Borghi, Roland

Benahmed, Nadia

机构：

[1] Irstea, F-13612 Aix En Provence, France

[2] CNRS, UPR 7051, Lab Mecan & Acoust, F-13402 Marseille, France

[3] EGIM, IMT, Technopole Chateau Gombert, F-13451 Marseille, France

来源：

COMPTES RENDUS MECANIQUE | 2006年 / 334卷 / 8-9期

关键词：

soils; two-phase flow; internal erosion; piping;

D O I：

10.1016/j.crme.2006.07.003

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A phenomenon called 'piping' often occurs in hydraulics works, involving the formation and evolution of a continuous tunnel between the upstream and the downstream sides. The hole erosion test is commonly used to quantify the rate of piping erosion. However, few attempts have been made to model these tests. From the equations for diphasic flow with diffusion, and the equations of jump with erosion, a piping model is developed. A characteristic time of internal erosion process is proposed. Comparison with experimental data validates our results.

引用

页码：555 / 559

页数：5