...
首页> 外文期刊>Journal of Residuals Science & Technology >Analysis on the Post-construction Settlement and Influencing Factors for Preloaded Soft Subgrade Based on Parameter Inversion
【24h】

Analysis on the Post-construction Settlement and Influencing Factors for Preloaded Soft Subgrade Based on Parameter Inversion

机译:基于参数反演的预载软基路基施工后沉降及影响因素分析

获取原文
           

摘要

Aiming at the problem that along a special passenger railway line, the soft soil foundation is widely distributed and the thickness is generally quite deep, leading to diverse foundation reinforcement methods, and in order to ensure required stability and post-construction settlement of soft subgrade, field tests of surcharge pre-loading were carried out in concurrence with field observations. The generalized Kelvin rheological model was employed for foundation parameter inversion and numerical simulation on track-laying construction as well as post-construction settlement prediction were also performed. Results of numerical inversion showed that the foundation parameters were reasonable and reliable and the post-construction settlement was significantly reduced after three months of pre-loading. Several influential factors related to post-construction settlement are highlighted including standing time after roadbed completion, pre-loading height and pre-loading time. It shows that the longer the standing time, the smaller the settlement, and an increase in pre-loading height and time may accelerate the foundation consolidation, thus reducing post-construction settlement.
机译:针对以下问题:沿着特殊的客运铁路线,软土地基分布广泛且厚度通常很深,导致了多种地基加固方法,并且为了确保所需的稳定性和软土路基的施工后沉降,在进行野外观测的同时,对附加费预载进行了野外测试。采用广义的Kelvin流变模型进行基础参数反演,对铺轨施工进行数值模拟,并对施工后沉降进行预测。数值反演结果表明,预加载三个月后,基础参数合理可靠,施工后沉降明显减少。强调了与施工后沉降有关的几个影响因素,包括路基完工后的站立时间,预加载高度和预加载时间。结果表明,站立时间越长,沉降越小,预加载高度和时间的增加会加速基础的固结,从而减少施工后的沉降。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号