頭城地區四稜砂岩之水文地質特性及地下水流模擬
Other Title
Hydrogeologic Characterization and Ground Water
Modeling of the Sezleng Sandstone in Toucheng area
Modeling of the Sezleng Sandstone in Toucheng area
Date Issued
2000
Date
2000
Author(s)
DOI
892116M002012
Abstract
The construction of Pinglin tunnel has
often encountered large quantities of ground
water. Dewatering in the tunnel could
reduce the ground water level in the Sezleng
Sandstone and spring flow in the nearby
area. Hence, it is essential to understand
hydrogeologic conditions and ground water
flow in the area. The study results
provided a preliminary hydrogeologic
framework. Modeling of natural ground
water flow and ground water seepage around
the tunnel would provide hydrogeologic
information for evaluating ground water
flow and water pressure before the tunnel
construction and the impact of construction
on local water use. Moreover, the
research adopted a heat pulse flowmeter and
an impeller flowmeter to conduct continuous
measurement of the variation of flow rate in
two boreholes. Combining the measured
flow rates and the overall hydraulic
conductivity calculated from the recovery
test, the detailed distribution of formation
hydraulic conductivity in the vertical
direction can be delineated. It is
anticipated that further research would
enhance the resolution of investigating the
potential ground water seepage problems
due to tunnel construction in the future.
Subjects
Sezleng Sandstone
Ground
Water
Water
Hydrogeology
Flowmeter
Publisher
臺北市：國立臺灣大學地質科學系暨研究所
Type
report
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