STRENGTH OF TREE ROOTS AND LANDSLIDES ON PRINCE-OF-WALES-ISLAND, ALASKA

被引：689

作者：

WU, TH

MCKINNELL, WP

SWANSTON, DN

机构：

[1] CHEN & ASSOCIATES,DENVER,CO 80223

[2] USDA,FOREST SERV,PACIF NW FOREST & RANGE EXPT STN,FOREST SCI LAB,CORVALLIS,OR 97331

来源：

CANADIAN GEOTECHNICAL JOURNAL | 1979年 / 16卷 / 01期

关键词：

D O I：

10.1139/t79-003

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The stability of slopes before and after removal of forest cover was investigated. Porewater pressures and shear strengths were measured and the soil properties were determined by laboratory and in situ tests. A model of the soil-root system was developed to evaluate the contribution of tree roots to shear strength. The computed safety factors are in general agreement with observed behaviors of the slopes. Decay of tree roots subsequent to logging was found to cause a reduction in the shear strength of the soil-root system. Refs.

引用

页码：19 / 33

页数：15

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