PORE PRESSURE DIFFUSION AND THE HYDROLOGIC RESPONSE OF NEARLY SATURATED, THIN LANDSLIDE DEPOSITS TO RAINFALL

被引：23

作者：

HANEBERG, WC

机构：

来源：

JOURNAL OF GEOLOGY | 1991年 / 99卷 / 06期

关键词：

D O I：

10.1086/629560

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Previous workers have correlated slope failures during rainstorms with rainfall intensity, rainfall duration, and seasonal antecedent rainfall. This note shows how such relationships can be interpreted using a periodic steady-state solution to the well-known linear pressure diffusion equation. Normalization of the governing equation yields a characteristic response time that is a function of soil thickness, saturated hydraulic conductivity, and pre-storm effective porosity, and which is analogous to the travel time of a piston wetting front. The effects of storm frequency and magnitude are also successfully quantified using dimensionless attenuation factors and lag times.

引用

页码：886 / 892

页数：7

共 29 条

[11]

HANEBERG WC, 1991, IN PRESS ENG GEOLOGY, V31

[12] A COMPARATIVE-STUDY OF 3 FORMS OF THE RICHARD EQUATION USED FOR PREDICTING ONE-DIMENSIONAL INFILTRATION IN UNSATURATED SOIL [J].