A drastic improvement of strength and stiffness of compacted soil by high compaction and its consideration in design and compaction control

高压实显着提高压实土的强度和刚度及其设计和压实控制的考虑

• 批准号: 23560597
• 负责人: TATSUOKA Fumio
• 金额: $ 3.74万
• 依托单位: Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560597/
• 关键词: 盛土; 変形・強度特性; 透水係数; 最大乾燥密度; 最適含水比; 最適飽和度; 締固め特性; 締固め度; 盛土締固め管理; 締固めエネルギー; 盛土施工管理; 三軸圧縮試験; セメント改良土

To revise the current design and compaction practice for the contraction of embankments of roads, railways and residential areas, river levees, earth fill dams etc by encouraging better compaction and taking into account its effects in design and compaction control, a series of laboratory compaction tests and stress-strain tests on a wide variety of sandy soils, gravelly soils and cement-mixed soils were performed.It was found that the compaction properties and stress-strain properties of compacted soil is a function of compacted dry density dry density and the degree of saturation during compaction Sr (not the water content w that is usually used in current practice) that does not include the compaction energy level as a variable. Based on the above, a new design and compaction control method controlling and measuring dry density and Sr (not w) is proposed.

为了修订现行公路、铁路和住宅区路堤、河堤、填土坝等收缩的设计和压实实践，鼓励更好的压实并考虑其在设计和压实控制中的影响，进行了一系列实验室压实试验对多种砂土、碎石土和水泥混合土进行了应力应变试验，发现压实土的压实特性和应力应变特性是压实干压实的函数。密度 干密度和压实过程中的饱和度 Sr（不是当前实践中通常使用的含水量 w），不包括压实能量水平作为变量。基于此，提出了一种控制和测量干密度和Sr（而不是w）的新设计和压实控制方法。

项目成果

Design and construction of geosynthetic-reinforced soil structures for Hokkaido high-speed train line

• DOI: 10.1016/j.trgeo.2013.12.001
• 发表时间: 2014-03
• 期刊: Transportation geotechnics
• 影响因子: 5.3
• 作者: T. Yonezawa;T. Yamazaki;M. Tateyama;F. Tatsuoka

Research and practice of GRS integral bridges

GRS整体桥梁研究与实践

• 发表时间: 2012
• 作者: Tatsuoka;F.;Kuroda;T. and Tateyama;M.
• 通讯作者: M.

Recent applications of GRS technology to mitigate natural disasters in Japan

GRS 技术在日本减轻自然灾害方面的最新应用

• 发表时间: 2012
• 作者: Tatsuoka;F.;Tateyama;M. and Koseki;J.
• 通讯作者: J.

EFFECTS OF VISCOUS PROPERTY AND WETTING ON 1-D COMPRESSION OF CLAY AND MODEL SIMULATION

• DOI: 10.3208/sandf.51.897
• 发表时间: 2011-10
• 期刊: Soils and Foundations
• 影响因子: 3.7
• 作者: Jian-liang Deng;H. Nawir;F. Tatsuoka

Lateral cyclic loading tests of a full-scale GRS integral bridge model

全尺寸GRS整体桥梁模型横向循环加载试验

• 作者: Koda;M.;Nonaka;T.;Suga;M.;Kuriyama;R;Tateyama;M. and Tatsuoka;F.
• 通讯作者: F.