U.S.-Japan Cooperative Science: Use of Reinforcement-Drainage Geosynthetics in Embankment/Wall Construction with Marginal Backfill

美日合作科学:加筋排水土工合成材料在边缘回填路堤/墙体施工中的应用

基本信息

  • 批准号:
    0442159
  • 负责人:
  • 金额:
    --
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2004
  • 资助国家:
    美国
  • 起止时间:
    2004-08-18 至 2008-04-30
  • 项目状态:
    已结题

项目摘要

0355430HanThis award supports a three-year international collaborative research project between Professor Jie Han at Widener University in Chester, Pennsylvania, Professor Dov Leshchinsky at the University of Delaware and Professor J. C. Chai at Saga University in Japan. They will undertake a study on the use of reinforcement-drainage geosynthetics in embankment/wall construction with marginal backfill. Geosynthetics have been successfully used as one or a combination of the following functions: reinforcement, drainage, separation, filtration, and/or containment in earth structures. In current embankment/wall construction, geosynthetics have been mostly used as reinforcement for the stability of embankments/walls. Current specifications require the use of high-quality, free-draining, granular backfill for constructing mechanically stabilized earth (MSE) retaining walls. However, marginal backfill including cohesive backfill has been increasingly used to construct embankments/walls due to economic and availability constraints. Many studies have indicated that an increase of fine-grained particles in backfill would make the backfill more susceptible to moisture/water. The detrimental effects of water in the backfill are to reduce strength and modulus, increase deformations (including creep deformation), and destabilize earth structures by increasing earth pressures and inducing seepage forces. When marginal backfill is used, use of geosynthetics for drainage as well as reinforcement becomes critical to the performance of embankments/walls. The researchers will be studying the following areas: 1) the drainage behavior of the geosynthetics, especially the long-term transmissivity of geosynthetics confined in marginal soil; 2) the consolidation behavior of marginal soil between layers of geosynthetics; 3) the interaction behavior between geosynthetics and marginal soil including direct sliding and pullout; and 4) the stability of embankments/walls using geosynthetic reinforcement with or without a drainage function. The project brings together the efforts of laboratories that have complementary expertise and research capabilities. The research will have an impact on the use of reinforcement-drainage geosynthetics in embankment/wall construction with marginal soil and provide guidance for the design of earth structures using these dual function geosynthetics. The project advances international human resources through the participation of a postdoc and a number of undergraduate students. Through the exchange of ideas and technology, this project will broaden our base of basic knowledge and promote international understanding and cooperation. Results of the research will be disseminated at scientific meetings and in scientific journals. The research will also be made available on the Internet.
0355430该奖项支持宾夕法尼亚州切斯特威德纳大学的韩杰教授、特拉华大学的Dov Leshchinsky教授和日本佐贺大学的JC Chai教授之间为期三年的国际合作研究项目。他们将就加筋排水土工合成材料在边缘回填的路堤/墙建设中的应用进行研究。土工合成材料已被成功地用作以下功能之一或组合:在土结构中增强、排水、分离、过滤和/或遏制。在目前的路堤/墙工程中,土工合成材料大多用于路堤/墙的稳定加固。目前的规范要求使用高质量、不排水的粒状回填土来建造机械稳定土(MSE)挡土墙。然而,由于经济和可用性的限制,包括粘性回填在内的边缘回填越来越多地被用于建造路堤/墙。许多研究表明,回填材料中细粒颗粒的增加会使回填材料更容易受到水分的影响。水在回填土中的不利作用是降低强度和模数,增加变形(包括蠕变变形),并通过增加土压力和诱发渗流力来破坏土结构的稳定性。当使用边缘回填时,使用土工合成材料作为排水和加固材料对路堤/墙的性能至关重要。研究人员将研究以下几个方面:1)土工合成材料的排水性能,特别是限制在边缘土中的土工合成材料的长期透水性;2)土工合成材料层间边缘土的固结特性;3)土工合成材料与边缘土之间的相互作用特性,包括直接滑动和拉拔;以及4)具有或不具有排水功能的土工合成材料加筋路堤/墙的稳定性。该项目汇集了具有互补专业知识和研究能力的实验室的努力。该研究将对加筋排水土工合成材料在边缘土路堤、墙体施工中的应用产生一定的影响,并为采用这种双重功能的土工合成材料进行土工结构设计提供指导。该项目通过博士后和一些本科生的参与促进了国际人力资源的发展。通过思想和技术的交流,这个项目将扩大我们的基础知识基础,促进国际理解与合作。研究结果将在科学会议和科学期刊上传播。这项研究还将在互联网上提供。

项目成果

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Jie Han其他文献

Stochastic Analysis of Multiplex Boolean Networks for Understanding Epidemic Propagation
用于理解流行病传播的多重布尔网络的随机分析
  • DOI:
    10.1109/access.2018.2842726
  • 发表时间:
    2018-06
  • 期刊:
  • 影响因子:
    3.9
  • 作者:
    Peican Zhu;Xiaogang Song;Leibo Liu;Zhen Wang;Jie Han
  • 通讯作者:
    Jie Han
Algorithm and Design of a Fully Parallel Approximate Coordinate Rotation Digital Computer (CORDIC)
全并行近似坐标旋转数字计算机(CORDIC)的算法与设计
Highly Accurate and Energy Efficient Binary-Stochastic Multipliers for Fault-Tolerant Applications
适用于容错应用的高精度、高能效二进制随机乘法器
A room-temperature liquid crystalline polymer based on discotic 1,3,4-oxadiazole
一种基于盘状1,3,4-恶二唑的室温液晶聚合物
  • DOI:
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    3.9
  • 作者:
    Jie Han;Zhuozhi Wang;Jing Wu;Li-Rong Zhu
  • 通讯作者:
    Li-Rong Zhu
Elevated CD8 + IL-17 + Tc17 Levels and Their Correlation with Disease Activity in Patients with Rheumatoid Arthritis
类风湿关节炎患者 CD8 IL-17 Tc17 水平升高及其与疾病活动度的相关性
  • DOI:
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Ning Li;Jie Han;Jieru Zhou;Jiayi Wang;Jie Zhang;S. Zheng
  • 通讯作者:
    S. Zheng

Jie Han的其他文献

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{{ truncateString('Jie Han', 18)}}的其他基金

PFI-RP: Novel coated geotextile to enhance water drainage from soil
PFI-RP:新型涂层土工布,可增强土壤排水能力
  • 批准号:
    2234410
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
U.S.-Japan Cooperative Science: Use of Reinforcement-Drainage Geosynthetics in Embankment/Wall Construction with Marginal Backfill
美日合作科学:加筋排水土工合成材料在边缘回填路堤/墙体施工中的应用
  • 批准号:
    0355430
  • 财政年份:
    2004
  • 资助金额:
    --
  • 项目类别:
    Standard Grant

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