EARTHFLOW OCCURRENCE DURING HIGH INTENSITY RAINFALL IN EASTERN OTAGO (NEW ZEALAND)

被引：6

作者：

CROZIER, MJ

机构：

[1] Department of Geography, University of Otago, Dunedin

来源：

ENGINEERING GEOLOGY | 1969年 / 3卷 / 04期

关键词：

D O I：

10.1016/0013-7952(69)90019-2

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The characteristics and effects of an unusually heavy rainstorm causing landsliding, are discussed. The storm produced up to 8 inches of rain in 48 h during a month, which, over the last 20 years, has had a mean of 2.03 inches. These weather conditions triggered numerous landslides in an area which is believed to have become progressively unstable over the last one hundred years. A theory for the progressive development of unstable land in the locality is outlined. It centres around the change of soil properties induced by a removal of the indigenous forest. The study lists the relevant morphological and geological characteristics of a typical earthflow and gives an account of the observed processes of earthflow occurrence. © 1969.

引用

页码：325 / &