检索结果-南通市图书馆

Strengthening long-term embankments maintained on permafrost soils

Research in Cold and Arid Regions 2017年第3期9卷 317-320页

作者： Evgeny S.Ashpiz Tatyana S.Vavrinyuk Moscow State University of Railway Engineering of Emperor Nicholas II The group of companies "MIAKOM"

An analysis of the reasons for the displacements of long-term embankments maintained on permafrost soils indicates that they mainly occur due to plastic deformations in the layer of seasonal freezing and thawing;therefore,the reconstruction of permafrost is not effective in this *** is proposed to strengthen these embankments with the help of using jet technology for cementation of the top layer of the *** approach is considered through the example of the deforming embankment on 6,278 km of the Turinskaya-Karymskaya section of the Trans-Siberian Railway.

关键词： embankment permafrost roadbeds temperature forecast stress-strain state jet technology

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

Characterization and impact analysis of freezing and expansion disease of roadbed in seasonal freezing zone: A case of heavy railroads

引用

Geohazard Mechanics 2023年第3期1卷 218-230页

作者： Pei Li Yaqian Dong The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education Beijing University of TechnologyBeijing100124PR China School of Civil Engineering and Transportation Northeast Forestry UniversityHarbin150040PR China

The freezing and expansion diseases of railroad roadbeds are prevalent in areas that experience seasonal *** study aims to investigate the features of the freezing and expansion mechanism of seasonal frozen railroad roadbeds and the effects of the freezing and expansion diseases on the *** article presents a study of the Shuo-Huang Heavy Duty ***,on-site monitoring tests were conducted to analyze the roadbed temperature,water content and deformations due to *** these tests,the pattern of development of the roadbed freezing and swelling was understood,and the effect of this on the vibration response of the roadbed was ***,load-free freezing tests were performed to investigate the freezing and expansion features of the *** on-site monitoring,it has been determined that the seasonal freezing layer is approximately 0.5 m *** depth of the frozen expansion on both sides of the road shows clear *** frozen and expansion disease significantly amplifies the vibration acceleration of the roadbed,with a tendency towards low-frequency and high-amplitude *** indoor testing,we compared the deformation of frozen specimens and their final freeze and expansion rates at different cold-end temperatures and various initial moisture content *** find that the initial moisture content has a greater impact on specimen freezing and *** findings in this paper can be used as a reference for researching and addressing roadbed freezing and expansion problems.

关键词： Seasonal permafrost zones Heavy railroads roadbeds Frost heave disease Vibration response

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

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：