检索结果-南通市图书馆

International Symposium on Modern Technology of Dams--The 4th EADC Symposium

作者： Ren Minghai Wan Chunlai Fu Wei Sinohydro Engineering Bureau 10,Dujiangyan city,Sichuan province.611830,

A brief introduction to the dam embankment construction methods and special management measures is made in this paper mainly in the light of the characteristics of Taleghan Dam & HPP Project in Iran.A record of dam embankment fill volume of 1.05 million m/month is achieved for the said Taleghan Project,and the construction quality thereof is guaranteed,which has enhanced the international reputation and market competitive strength of Sinohydro Corporation.

关键词： Earthfill dam with clay core embankment construction Dispersive clay treatment Temporary road across the clay core zone

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Analysis of Field Performance of embankments on Soft Clay Deposit with and without PVD-Improvement

Analysis of Field Performance of Embankments on Soft Clay De...

引用

作者： SHEN Shui-long~1,CHAI Jin-chun~2 HONG Zhen-shun~3,CAI Feng-xi~1 (1.School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200030,China 2.Institute of Lowland Technology,Saga University,Saga 840-8502,Japan 3.Institute of Geotechnical Engineering,Southeast University,Nanjing 210096,China)

This paper presents a case history of the performance of two full-scale test embankments constructed on soft clay deposit in the eastern coastal region of *** embankment was constructed on natural subsoil and the other was constructed on prefabricated vertical drain(PVD) improved *** thickness of the soft clay deposit without PVD-improvement was 19m and with PVD-improved case was 23 *** PVDs were installed to a depth of 19m with spacing of 1.5m in a triangular *** performance of the two embankments was analyzed using the finite element *** following influential factors:①hydraulic conductivity of subsoil in field and②discharge capacity of PVDs were investigated *** back-analyzed results for the embankment on natural subsoil showed that the hydraulic conductivity ratio(C) of field to laboratory values is about *** analyse the PVD-improved subsoil,a simple approach using the equivalent vertical hydraulic conductivity of PVD-improved subsoil was *** analytical results show that PVDs in creased the bulk vertical hydraulic conductivity of soft subsoil by about 30 times compared to the original nontreated *** discharge capacity of PVDs in this field case is 79～100m/a,which is consistent with the findings from laboratory tests and other reported values in literature.

关键词： embankment construction soft subsoil PVD-improvement FEM analysis hydraulic conductivity

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Some Classical Terzaghi Primary Consolidation Differential Equation Mathematical Added Variabilities in Order to Get Better Field Monitoring Data Match Results

引用

Journal of Civil Engineering and Architecture 2021年第2期15卷 84-87页

作者： Ampeglio Diego Garini Consulting Engineer Genoa Genoa 16044Italy

In this paper is illustrated a mathematical added variability of the classical Terzaghi primary consolidation equation(1923)considering independently as variables the Consolidation Coefficient Cv and as well the Height Hi of the consolidating Laboratory Consolidation Test soil sample in order to finally grasp the low permeability layer time *** is easy to show that,when the Cv variation is positive,each of these two added variabilities differentiations has as maximum a factor 2 related to the laboratory evaluated coefficient of consolidation,for a certain incremental load of reference in a Laboratory Consolidation *** this scope,it is analysed the overall behaviour of a typical clayey material,from the mineralogical point of view,namely especially either composed by lean clay with main kaolinite mineralogical content or fat namely with Illite mineralogical content or even very dilatant namely principally constituted by *** Montmorillonite variability with Cv is negative,and consequently the differentiation enhancement factor can become *** it is known so far,in normal conditions of a soft clay,a difference in construction Values of the Coefficient of Consolidation is up to 23 times greater than laboratory evaluated results,and this according to the author’s experience,may be also mainly explained not starting from Laboratory Consolidation Test Data,but through a more general macroscopic behaviour of the soil underneath the newly loaded area,putting aside the case of temperature-induced *** conclusion,it is suggested how to model the analytical problem of the so modified Terzaghi Primary Consolidation differential equation in order to better manage the construction unknowns of the phenomenon.

关键词： Coefficient of consolidation embankment construction primary consolidation soil permeability settlements vertical settlements void ratio

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

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

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：