淡江大學機構典藏:Item 987654321/36138
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 62830/95882 (66%)
Visitors : 4042420      Online Users : 1029
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
    •  Adv. Search
    Home ‧ Login ‧ Upload ‧ Help ‧ About ‧ Administer Goto mobile version


    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/36138


    Title: 碎形維度於量化砂土顆粒形狀之研究
    Other Titles: Quantify the Shape of Sand Grains Using Fractal Dimension
    Authors: 洪勇善;Hong, Yung-Shan;游以民;Yu, Yi-Min
    Contributors: 淡江大學土木工程學系
    Keywords: 摩擦角;碎形維度;顆粒形狀;相對密度;Friction angle;Fractal dimension;Grain shape;Relative density
    Date: 2002-12-20
    Issue Date: 2010-01-11 10:12:01 (UTC+8)
    Abstract: 本文研究砂土顆粒形狀對摩擦角之影響，並引入顆粒形狀於砂土剪力強度函數中。依據碎形理論之碎形維度D 來量化砂土顆粒之形狀特徵，建立良好圓球狀至角狀所對應之碎形維度。試驗之四種砂土皆為均一級配，顆粒尺寸範圍介於75 ~ 2000 mm，碎形維度介於1.023 ~ 1.052。由直剪試驗於三種不同相對密度下求得砂土剪力強度，並經分析顯示於試驗範圍內砂土摩擦角與碎形維度呈上凹之雙曲線函數關係。
    This paper aims to verify a relationship between the shape of sand grains and the friction angle. In fractal theory, the fractal dimension (D) can provide a measure of particle surface shape. The boxcovering method used squared grids of various sizes to cover the particles to calculate a fractal dimension. From the well rounded to angular sand grains were analyzed to obtain the fractal dimension D = 1.023 ~ 1.052 in this study. The samples are poorly graded sand within the granulometric band ranging from 75 to 2000 mm. The shear strength of sand was carried using direct shear tests to determine the values of the shear strength parameters with three relative densities. A hyperbolic relationship was found between the friction angle and fractal dimension in this study range.
    Relation: 中華民國力學學會第二十六屆年會暨全國力學會議論文集，10頁
    Appears in Collections:[Graduate Institute & Department of Civil Engineering] Proceeding

    Files in This Item:

    File Description SizeFormat
    碎形維度於量化砂土顆粒形狀之研究_中文摘要.docx摘要19KbMicrosoft Word146View/Open
    碎形維度於量化砂土顆粒形狀之研究_英文摘要.docx摘要18KbMicrosoft Word85View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.

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