检索结果-南通市图书馆

stability Problems in Road and Pipeline Constructions and Their Mitigation——Examples from sakhalin and Azerbaijan

Journal of Mountain science 2011年第2期8卷 307-313页

作者： NOVOTNY Jan arcadis geotechnika a.s. charles university in prague Faculty of Natural Science

The paper gives two examples of larger construction projects with typical stability problems. The first example is from sakhalin Island in the Russian Far East. It is connected with a construction of oil and gas pipelines through the mountainous terrain in Makarov region. The region has an active geotectonic history and is highly affected by uncontrolled erosion and extensive landslips. Basic principles of landslide hazard mitigation are presented. The second example is from a motorway construction in Azerbaijan. This motorway lea.s.from Baku to Russia through a.s.ismo-tectonically active area at the toe of Caucasian mountains and in some places is situated in deep cuts at the toe of high slopes. This unsuitable routing, together with seismic activity, led to a.s.ope stability failure of a.s.ope affected by recent tectonic movements near the village of Devechi. stability conditions and designed remedy measures are presented.

关键词： stability problems Roads Pipelines Mitigation sakhalin Azerbaijan

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Grain size Distribution of soils within the Cordillera Blanca, Peru: An Indicator of Basic Mechanical Properties for slope stability Evaluation

引用

Journal of Mountain science 2014年第3期11卷 563-577页

作者： Jan NOVOTNY Jan KLIME arcadis CZ a.s. Institute of Hydrogeology Engineering Geology and Applied Geophysics Charles University in Prague Albertov Department of Engineering Geology Institute of Rock Structure and Mechanics Academy of Sciences of the Czech Republic v.v.i

This paper presents results of a.s.udy on the mechanical properties of sandy and gravely soils within the Cordillera Blanca, Peru. The soils were divided into groups according to their origin(glacial, fluvial, or debris flow). The grain size distribution of forty three soil samples was used to cla.s.fy the soils according to the scheme of the Unified soil Cla.s.fication system(UsCs). These distributions have then been used to estimate shear strength and hydraulic properties of the soils. There are clear differences between the soils which reflect their divergent origins. The glacial soils normally fit within one of two distinctive groups according to the proportion of fines(Group A, 7%-21.5%; Group B, 21%-65%). The estimation of shear strength at constant volume friction angle and peak shear strength of the glacial sediments with low content of fines was made using published data relating to the measured shear strength characteristics of soils with similar origins and grain size distributions. The estimated values were supported by measurements of the angle of repose taken from fourteen samples from two moraines and by shear tests on samples from one locality. The results of the grain size distribution werea.s. used to estimate the average hydraulic conductivity using the empirical Hazen formula which results were verified by field infiltration tests at two localities.

关键词： Moraines Grain size distribution shea.s.rength Hydraulic conductivity Cordillera Blanca Peru

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：