淡江大學機構典藏:Item 987654321/18642
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 62805/95882 (66%)
造访人次 : 3884756      在线人数 : 218
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧：
  • 您可在西文检索词汇前后加上"双引号"，以获取较精准的检索结果
  • 若欲以作者姓名搜寻，建议至进阶搜寻限定作者字段，可获得较完整数据
    •  进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/18642


    题名: 以FLAC分析層狀岩石之壓力分佈行為
    其它题名: A Study on the Stress Distribution Behavior of Layered Rocks by FLAC
    作者: 楊長義;陳仁偉
    贡献者: 淡江大學土木工程學系
    关键词: 層狀岩石;深開挖;地盤沈陷;應力分布;Layered Rock;Deep Excavation;Ground Settlement;Stress Distribution
    日期: 2000-02-01
    上传时间: 2009-09-16 18:13:09 (UTC+8)
    出版者: 臺中市：中國土木水利工程學會資訊委員會
    摘要: 本文利用FLAC程式中橫向等向性及非均質的岩盤材料組成模式模擬非等向性岩層之垂直應力與開挖後側向岩壓之分布。主要探討的參數有層理之方位、間距、勁度比，及岩石材料之彈性參數。研究結果顯示：(1)開挖前現地岩盤之應力分布與節理傾角及勁度比(正向勁度比剪勁度)有極大關係，其結果亦可與Bray理論解比較驗證；(2)開挖後層狀岩盤之側向應力分布與地表沈陷量亦與層理之間距與方位有關，且呈現異向性行為；(3)砂頁岩互層之側向應力分布可以砂岩與頁岩之各別土壓為上下界預估。
    The purpose of this paper is to analyze the principal stress distribution and lateral stress of layered rocks. The 'Elastic Transversely Isotropic Model' in FLAC code is adopted to model the anisotropic characteristic for a rock formation, The result of FLAC analysis is first evaluated by the Bray's formula. Then the anisotropy of the principal stress distribution for a layered rock mass under line load is discussed. It is founded that the anisotropy of stress distribution is depended on the joint orientation and the normal/shear stiffness of the joints. In addition, the lateral stress distribution behavior in these layered rocks due to excavating is also examined. It reveals that the lateral stress of the layered rocks at rest is different from the theoretical value in an isotropic soil, but depended on both the joint orientation and joint properties. Moreover, the lateral stress for the alternation of the sandstone and shale is also discussed. It shows that the lateral stress for the alternation formation is located between the two elastic lateral stresses of the sandstone and shale.
    關聯: 八十八年電子計算機於土木水利工程應用研討會論文集(一)=Proceedings of the Conference on Computer Applications in Civil & Hydraulic Engineering，頁669-677
    显示于类别:[土木工程學系暨研究所] 會議論文

    文件中的档案:

    档案 大小格式浏览次数
    index.html0KbHTML289检视/开启

    在機構典藏中所有的数据项都受到原著作权保护.

    TAIR相关文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈