National Taiwan Ocean University Institutional Repository:Item 987654321/42134
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 28611/40652
Visitors : 754181      Online Users : 49
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search

Please use this identifier to cite or link to this item:

Title: Identification of conductible fractures at the upper- and mid- stream of the Jhuoshuei River Watershed (Taiwan)
Authors: P.Y. Chou;H.C. Lo;C.T. Wang;C.H. Chao;S.M. Hsu;Y.T. Lin;C.C. Huang
Contributors: 國立臺灣海洋大學:河海工程學系
Date: 2011
Issue Date: 2017-04-27T01:19:15Z
Publisher: Advances in the Research of Aquatic Environment
Abstract: Abstract:The movement and storage of ground water in the mountainous region has a significant impact on the dynamics of surface water flow. An adequate identification of the conductible fracture in the aquifer has thus received growing interest over the past decades. This paper summarizes the major findings from the first year of a hydrogeological investigation program initiated by the Central Geological Survey, Ministry of Economic Affairs (MOEA) of Taiwan since 2010, with a special focus on exploring in detail the fracture permeability. During the on-site investigation, geophysical logging was applied to delineate the lithostratigraphic characteristics of bedrock aquifers. The hydraulic conductivity of 67 observation segments was estimated by the constant head injection method. From the information gathered in this study, the hydraulic conductivities of the identified fractured medium above a depth of 40m are more than one order higher than that of the matrix. The occurrence of ground water in a fracture network, however, is found to be not solely governed by lithological composition, but more possibly by fracture porosity and spacing. A simple linear relationship was found by plotting the hydraulic conductivity against the product of total porosity and cubic aperture ratio (fracture spacing/sealed-off interval between the packers).
Relation: 2, pp.11-19
Appears in Collections:[Department of Harbor and River Engineering] Periodical Articles

Files in This Item:

File Description SizeFormat

All items in NTOUR are protected by copyright, with all rights reserved.


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback