Browse > Article
http://dx.doi.org/10.21729/ksds.2017.10.1.19

Development of 3-D Flow Model for Porous Media with Scenario-based Ground Excavation  

Cha, Jang-Hwan (Infra Research Institute, INCITY CO., LTD.)
Lee, Jae-Young (Infra Research Institute, INCITY CO., LTD.)
Kim, Woo-Seok (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of Korean Society of Disaster and Security / v.10, no.1, 2017 , pp. 19-27 More about this Journal
Abstract
In recent years, ground subsidence has been frequently occurred by underground cavities due to the excessive groundwater inflow, caused by poor construction and management, during tunnel excavation and underground structure construction. In this study, a numerical model (SEEFLOW3D) was developed to estimate groundwater fluctuations for saturated-unsaturated poros media, evaluates the impact on ground excavation with open cut and non-open cut scenarios. In addition, the visual MODFLOW was applied to demonstrate the verification of the model compared with both results. Our results indicated that the RMSE and NRMSE was obtained to range over -3.95~5.7% and 0.56~4.62%, respectively. The developed model was expected to estimate groundwater discharges and apply analysis tool for optimum design of waterproof wall in future.
Keywords
Porous Media; Three Dimensional Flow Model; Ground Excavation; Soil moisture content;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김중휘, 박재용, 이성호, 이용일, 김준모 (2016), COMSOL Multiphysics 소프트웨어를 이용한 도시 지역 강우에 의한 포화-불포화 지하수 유동 및 지반 변형 통합 수치 모델링, 대한지질공학회 추계학술대회, pp. 73-74.
2 박재용, 이성호, 이용일, 김준모, 김중휘 (2016), 충적 대수층 내 지하 공동 형성에 의한 지하수 유동 및 지반 변형에 대한 초기 지하수면 위치의 영향 통합적 수치 모델링, 대한지질공학회 춘계학술대회, pp. 43-44.
3 전선금, 구민호, 김용제, 강인옥 (2005), 국가지하수 관측망의 양수시험 자료를 이용한 국내 대수층 특성의 통계적 분석, 한국지하수토양환경학회, 10(6), pp. 32-44.
4 차장환, 장호준, 안현석, 주정웅, 이명재 (2014), 강변여과수의 수리지질 및 지화학적 특성 연구: 안성천지역, 춘계 지질과학기술 공동학술대회, 356.
5 Carsel, R. F. and Parrish, R. S. (1998), Developing joint probability distributions of soil water retention characteristics, Water Resources Research, 24(5), pp. 755-769.   DOI
6 Lin H. C., D. R. Richards, G. T. Yeh, J. R. Cheng, H. P. Cheng, and N. L. Jones (1997), FEMWATER: A Three-Dimensional Finite Element Computer Model for Simulating Density-Dependent Flow and Transport in Variably Saturated Media. Report CHL-97-12, U. S. Army Corps of Engineers, 3909 halls Ferry Road, Vicksburg, MS39180-6199.
7 van Genuchten, M. T. (1980), A closed-form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Science Society of America Journal, 44, 892-898.   DOI
8 Yeh, G. T. (1987), 3DFEMWATER: A Three-Dimensional Finite Element Model of Water Flow through Saturated-Unsaturated Porous Media. Report 2904, Oak Ridge National Laboratory, U.S.A.
9 Yeh, G. T., J. R. Chang, J. P. Gwo, H. C. Lin, W. Martin, and D. Richards (1994), 3DSALT: A Three-dimensional Salt Intrusion Model in Saturated-Unsaturated Media. Instruction Report HL-94-1. Waterway Experiment Station, U.S. Army Corps of Engineers, Vicksburg, MS.