全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

考虑软土结构性损伤的路基沉降预测反分析

, PP. 47-51

Keywords: 道路工程,预测,反分析,软土,结构性,沉降

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了较好的预测工后沉降,从软土的结构性入手,考虑天然软土的结构性损伤,减少由于软土的扰动、损伤对计算结果精确性的影响,对受扰动软土的弹性力学特征值进行了修正;结合反分析方法,由沉降固结计算的角度对模型参数进行反分析,预测了沉降趋势,并与实际观测数据及理论计算数值进行比较,对工后沉降做出合理地预测。结果表明,软土路基沉降预测不应该忽视软土的结构性损伤,通过对土参数的反演修正,计算出的软土路基沉降预测值和实测值更加接近,应用反分析理论可根据工程现场实测的变形及其他可观测信息进行一系列反馈处理,能将设计与施工过程密切联系起来,是动态设计的最基本也是最重要的组成部分。

References

[1]  李又云,刘保健,谢永利.软土结构性对渗透及固结沉降的影响[J].岩石力学与工程学报,2006,25(增2):3587-3592.LI Youyun,LIU Baojian,XIE Yongli.Influences of Permeability and Consolidation Settlement on Structure of Soft Clay[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(S2):3587-3592.
[2]  熊传祥,龚晓南.一种改进的软土结构性弹塑性损伤模型[J].岩土力学,2006,27(3):395-397.XIONG Chuanxiang,GONG Xiaonan.An Updated Elastoplastic Damage Model for Structural Soft-clays[J].Rock and Soil Mechanics,2006,27(3):395-397
[3]  姜岩.交通荷载作用下结构性软土的动力特性及机理分析[D].天津:天津大学,2007.JIANG Yan.Analysis of Dynamic Characteristics and Mechanism of Structural Soft Soil under Traffic Loading[D].Tianjin:Tianjin University,2007.
[4]  沈正,黄晓明.软土地基桥台后回填固化粉煤灰工后沉降与差异沉降分析[J].公路交通科技,2007,24 (6):53-56.SHEN Zheng,HUANG Xiaoming.Analysis on Post-construction Settlements and Differential Settlements of Solidified Fly Ash Backfills Adjacent to Abutment on Soft Clay Foundations[J].Journal of Highway and Transportation Research and Development,2007,24(6):53-56.
[5]  YAO Wenjuan,YE Zhiming.Analytical Solution of Bending-compression Column Using Different Tension Compression Modulus[J].Applied Mathematics and Mechanics:English Edition,2004,25 (9):983-993.
[6]  陈铁林,沈珠江.岩土破损力学的系统论基础[J].岩土力学,2004,25(增2):21-26.CHEN Tielin,SHEN Zhujiang.System Approach of Breakage Mechanics for Geological Materials[J].Rock and Soil Mechanics,2004,25(S2):21-26.
[7]  雷华阳,姜岩,陆培毅,等.交通荷载作用下结构性软土的孔径分布试验[J].中国公路学报,2009,22(2):6-11.LEI Huayang,JIANG Yan,LU Peiyi,et al.Pore Size Distribution Test of Structural Soft Soil under Traffic Loading[J].China Journal of Highway and Transport,2009,22(2):6-11.
[8]  王立忠,赵志远,李玲玲.考虑土体结构性的修正邓肯--张模型[J].水力学报,2004(1):83-89.WANG Lizhong,ZHAO Zhiyuan,LI Lingling.Non-linear Elastic Model Considering Soil Structural Damage[J].Journal of Hydraulic Engineering,2004(1):83-89.
[9]  WITH C,BODARE A.Prediction of Train-induced Vibrations Inside Buildings Using Transfer Functions[J].Soil Dynamics and Earthquake Engineering,2007,27(2):93-98.
[10]  SAAD B,HANI M,HORMOZ P.3D FE Analysis of Flexible Pavement with Geosynthetic Reinforcement[J].Journal of Transportation Engineering,2006,132(5):402-415.
[11]  JU S H.Finite Element Analysis of Structure-borne Vibration From High-speed Train[J].Soil Dynamics and Earthquake Engineering,2007,27(3):259-273.
[12]  李又云,谢永利,刘保健.一维固结变形理论参数的试验分析[J].公路交通科技,2007,24(9):11-15.LI Youyun,XIE Yongli,LIU Baojian.Experimental Analysis of Parameter on Consolidation Deformation Theory[J].Journal of Highway and Transportation Research and Development,2007,24(9):11-15.
[13]  熊健民,金生吉,余天庆.路基沉降试验研究及数值模拟[J].华中科技大学学报:城市科学版,2008,25(4):54-56.XIONG Jianmin,JIN Shengji,YU Tianqing.Numerical Simulation on Roadbed Settlement of Highway[J].Journal of Huazhong University of Science and Technology:Urban Science Edition,2008,25(4):54-56.
[14]  曾庆军.公路软土地基沉降的反演分析[J].公路与汽运,2003(2):28-30.ZENG Qingjun.Inversion Analyses of Highway Soft Ground Settlement[J].Highways & Automotive Applications,2003(2):28-30.
[15]  毛灵涛,薛茹,袁则循.软土路基微结构扫描电镜图像的分形[J].长安大学学报:自然科学版,2007,27(2):30-33.MAO Lingtao,XUE Ru,YUAN Zexun.Fractal Approach on Soft Soil Subgrade Microstructure SEM Image[J].Journal of Chang'an University:Natural Science Edition,2007,27(2):30-33.
[16]  邵光辉,刘松玉.确定软土路基沉降系数的ANN模型[J].公路交通科技,2007,24(4):29-33.SHAO Guanghui,LIU Songyu.An ANN Model for Determining the Settlement Coefficient of Embankment on Soft Ground[J].Journal of Highway and Transportation Research and Development,2007,24(4):29-33.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133