 |
| Titel |
Artificial factors influencing groundwater flows in the industrial complexes at the coastal area |
| VerfasserIn |
Seung Gyu Hyun, Kue-Young Kim, Nam C Woo |
| Konferenz |
EGU General Assembly 2015
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250103666
|
| Publikation (Nr.) |
 EGU/EGU2015-3082.pdf |
|
|
|
|
|
| Zusammenfassung |
| Underground structures of the industrial complexes constructed along the coastal areas
are vulnerable to the chemical degradations by the sea-water intrusion. Thus it is
important to understand how the groundwater system has been altered after the facility
construction.
Based on the analysis of the groundwater fluctuations in the monitoring wells, the study
area was divided into two sections, the rainfall impact areas and the tidal impact areas. Tidal
impact section shows the hydraulic diffusivity(T /S, m2d-1) ranging from 9.6x102 to
4.6x104, with the minimum and maximum values for PZ-8 and PZ-5 affected by the
underground structure and the excavation-backfill materials, respectively. Then, the storage
coefficient was estimated from the hydraulic diffusivity using the results of single-well
pumping tests. Transmissivities(T) ranged from 1.4x10 to 4.7x102 m2d-1, and the storage
coefficients(S) from 0.002 to 0.052. The highest and the lowest transmissivities of PZ-5
and PZ-6 appeared to reflect the hydraulic property of backfill materials used for
construction.
Therefore, for hydrogeological characterization of the coastal region with large-scale
constructions, field data from various tests should be carefully analyzed considering the
impact and the interference of the construction activities, including the distance
between underground structures and the monitoring wells, the array of structures,
locations and depths of excavation and backfill, hydraulic property of backfill material,
etc.
Key word : hydrogeological characterization, coastal area, construction activity, tidal
method, hydraulic diffusivity |
|
|
|
|
|
|