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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/24123

Title: An empirical model for estimating hydraulic conductivity of highly disturbed clastic sedimentary rocks in Taiwan
Authors: Cheng-Yu Ku;Shih-Meng Hsu;Lin-Bin Chiou;Gwo-Fong Lin
Contributors: NTOU:Department of Harbor and River Engineering
國立臺灣海洋大學:河海工程學系
Keywords: Hydraulic conductivity;Borehole acoustic televiewer;Double packer system;Sedimentary rocks;Rock mass
Date: 2009-11-20
Issue Date: 2011-10-20T08:10:24Z
Publisher: Engineering Geology
Abstract: abstract:This paper presents the establishment of an empirical HC model for estimating rock mass hydraulic conductivity of highly disturbed clastic sedimentary rocks in Taiwan using high-resolution borehole acoustic televiewer and double packer hydraulic tests. Four geological parameters including rock quality designation (RQD), depth index (DI), gouge content designation (GCD), and lithology permeability index (LPI) were adopted for establishing the empirical HC model. To verify rationality of the proposed HC model, 22 in-situ hydraulic tests were carried out to measure the hydraulic conductivity of the highly disturbed clastic sedimentary rocks in three boreholes at two different locations in Taiwan. Besides, the model verification using another borehole data with four additional in-situ hydraulic tests from similar clastic sedimentary rocks was also conducted to further verify the feasibility of the proposed empirical HC model. The field results indicated that the rock mass in the study area has a conductivity between the order of 10− 10 m/s and 10− 6 m/s at the depth between 34 m and 275 m below ground surface. Results demonstrate that the empirical HC model may provide a useful tool to predict hydraulic conductivity of the highly disturbed clastic sedimentary rocks in Taiwan based on measured HC-values.
Relation: 109(3-4), pp.213–223
URI: http://ntour.ntou.edu.tw/handle/987654321/24123
Appears in Collections:[河海工程學系] 期刊論文

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