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Long-term reinforcement strains for column supported embankments with viscous reinforcement by FEM

机译：有限元法对黏性加固圆柱支撑路堤的长期加固应变

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摘要

The time-dependent performance of deep-mixing-method column supported embankments reinforced by viscous reinforcement is investigated for different long-term (at 99% degree of consolidation) reinforcement strains using fully coupled three-dimensional finite element method. The influence of longterm reinforcement strains on long-term net embankment height, maximum crest settlement, maximum differential settlement at the crest and horizontal toe movement of embankments numerically constructed over two soft foundations is explored with the consideration of viscosity of two reinforcement products. Based on a series of numerical simulations, an approach to controlling the deformations of column supported embankments to modest levels while maximizing their long-term service heights is proposed. Also, a correlation between long-term reinforcement strain and end-of consolidation reinforcement strain is suggested for the studied cases. (C) 2017 Elsevier Ltd. All rights reserved.
机译：使用完全耦合三维有限元方法，研究了在不同的长期（固结度为99％）加固应变下，粘滞加固加固的深层搅拌法支护路堤的时变性能。考虑到两种加固产品的黏性，探讨了长期加固应变对长期在两个软土地基上数值构造的路堤的长期净路堤高度，最大波峰沉降，最大波峰差异沉降以及路堤水平脚趾运动的影响。在一系列数值模拟的基础上，提出了一种将柱支撑路堤的变形控制在适度水平同时最大化其长期服务高度的方法。此外，对于所研究的情况，建议长期固结应变与固结终了固结应变之间的相关性。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Geotextiles and Geomembranes》 |2017年第4期|307-319|共13页
  • 作者

    Liu K. -W.; Rowe R. Kerry; Su Qian; Liu Bao; Yang Zhixiang;

  • 作者单位

    Southwest Jiaotong Univ, Sch Civil Engn, Minist Educ, Key Lab High Speed Railway Engn, Chengdu 610031, Sichuan, Peoples R China|China Univ Min & Technol, State Key Lab GeoMech & Deep Underground Engn, Xuzhou, Peoples R China;

    Queens Univ, Queens RMC, GeoEngn Ctr, Kingston, ON K7L 3N6, Canada|Queens Univ, Dept Civil Engn, Kingston, ON, Canada;

    Southwest Jiaotong Univ, Sch Civil Engn, Minist Educ, Key Lab High Speed Railway Engn, Chengdu 610031, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Sch Civil Engn, Minist Educ, Key Lab High Speed Railway Engn, Chengdu 610031, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Sch Civil Engn, Minist Educ, Key Lab High Speed Railway Engn, Chengdu 610031, Sichuan, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Geosynthetics; Column-supported embankment; Long-term reinforcement strain; Reinforcement viscosity; Long-term embankment deformations;

    机译：土工合成材料;柱支撑路堤;长期配筋应变;配筋黏性;长期路堤变形;边坡变形;

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