English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 49287/83828 (59%)
造訪人次 : 7153177      線上人數 : 70
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/18625


    題名: 岩石破裂音射源分佈之碎形特徵
    作者: 李彥宏;陳忠賢;王菀珊;楊長義
    貢獻者: 淡江大學土木工程學系
    關鍵詞: 微裂隙;音射;叢集維度;blasting vibration;weak planes
    日期: 2002-11-01
    上傳時間: 2009-09-16 18:12:05 (UTC+8)
    出版者: 新竹市:中華大學
    摘要: 岩石破裂之音射源、位置與岩石材料內部缺陷之自然分佈有闕,每一音射位置意味著該處材料產生微裂隙,因此藉由岩石材料的音射源位置發展可問接了解岩石內部的微觀特性。此種破裂看似雜亂魚章,事實土仍舊可借助碎形理論尋找其自然現象規則。本研究以碎形理論中的叢集維度來解釋岩石破裂之音射源位置分佈'由於叢集維度可以反應音射源之相對疏密形況,故可由叢集維度值的變化暸解岩石內部之破裂過程。
    Blasting technology, highly affected by geological condition, plays an important role on the excavation of rock tunnel. This paper reviews the blasting theory firstly, and figures out some significant parameters related geological condition with blasting design/result. Accordingly, a statistic approach with physically meaningful parameters is carried out to investigate the relationship between blasting vibration, attitudes of weak planes, blasting design factors and blasting results in details. Concerned with the blasting vibration, the strength of intact rock, ground water condition and number of joint sets are the major factors affecting the peak particle velocity. Regarding to overbreak, the considerable program in fractured rock blasting, the location of maximum overbreak is influenced by the apparent dip of schistosity, cleavage, joint and shear fractured zone. Among which the joint and shear fractured zone play significant relevance. Furthermore, the overbreak in weak rock is greater than moderate and strong strength rocks in case of similar competent situation. And the overbreak increases as the spacing of peripheral boreholes increasing for the similar strength factor.
    關聯: 2002岩盤工程研討會論文集=2002 Taiwan rock engineering symposium,頁 625-644
    顯示於類別:[土木工程學系暨研究所] 會議論文

    文件中的檔案:

    檔案 大小格式瀏覽次數
    index.html0KbHTML98檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

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