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2024 Vol.40, Issue 6 Preview Page
Analysis of Rainfall Infiltration and Slope Stability in Deforested and Forested Areas Using Real-Time Water Content Monitoring

실시간 함수비 모니터링을 통한 벌목지역과 수풀지역의 강우침투 경향 분석

Sung-Il Park1
,
Hyung-Sik Yoo2
,
Jae-Hong Kim3
,
Tae-Wan Kim4*
박 성일1
,
유 형식2
,
김 재홍3
,
김 태완4*
1Associate Prof., Dept. of Computer Engineering, Dongshin Univ.
2Member, Graduate Student, Dept. of Civil and Environmental Engineering, Dongshin Univ.
3Member, Associate Prof., Dept. of Civil and Environmental Engineering, Dongshin Univ.
4Member, Graduate Student, Dept. of Civil and Environmental Engineering, Dongshin Univ.
1비회원, 동신대학교 컴퓨터학과 부교수
2정회원, 동신대학교 토목환경공학과 박사과정
3정회원, 동신대학교 토목환경공학과 부교수
4정회원, 동신대학교 토목환경공학과 박사과정
*Corresponding Author
31 December 2024. pp. 45-55
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Abstract

Due to ongoing climate change, large-scale landslides are occurring in many regions because of extreme rainfall, causing enormous human and property damage. In addition, expanding deforestation driven by indiscriminate development and insect pests in urban mountain areas contributes substantially to landslide occurrence. Predicting the likelihood of landslides is necessary to reduce damage and, where possible, prevent them. In this study, the flow of water in the ground was analyzed by measuring water content using a wireless sensor network in the deforested and forested areas of a natural slope, where shallow slope failures occurred during the rainy season. The results showed that water content in the forested area remained consistent, even during dry and rainy periods; preventing extreme drying and wetting cycles. In contrast, in the deforested area, considerable fluctuations in water content led to the formation of tensile cracks on the soil surface layer, creating water flow paths and influencing factors that compromise slope stability.

Keywords
Deforested
Forested
Wireless Sensor Network
Slope stability
Water flow path

지속되는 기후변화로 인한 극한 강우로 동시다발적인 대형 산사태가 발생하고 있는 상황이며, 이는 막대한 인명피해 및 재산피해를 발생시키고 있다. 이러한 상황 속에 도심지 산지의 무분별한 개발행위와 병충해로 인해 증가하고 있는 벌목 지역들은 산사태 재해에 중요한 요인으로 작용하고 있다. 산사태 피해 예방을 위해서는 사전에 예측하여 피해 발생 규모를 감소시킬 필요성이 있기 때문에 본 연구에서는 실제 장마철 기간에 얕은 비탈면 붕괴가 발생한 자연사면의 벌목지역과 수풀지역에 무선센서네트워크기술(Wireless Sensor Network, WSN)를 적용하여 계측한 함수비를 통해 지반 내 물의 흐름을 파악하였다. 그 결과는 수풀지역의 함수비는 건조시기나 강우시에서도 유사하게 일정한 함수비를 유지하여 지반의 건조-습윤의 극심한 반복이 없었다. 그러나 벌목지역에서는 함수비의 극심한 변화로 지중내 물길 형성이 가능한 표층에 인장균열과 같은 지반의 벌어진 틈이 보여 비탈면의 불안전한 요인들에 영향을 끼치고 있음을 확인할 수 있었다.

References
1

Bordoni, M., Meisina, C., Valentino, R., Persichillo, M.G., Bittelli, M., and Chersich, S. (2016), "The Impact of Hydrological Parameters on Modelling Slope Safety Factor Towards Shallow Landslides: A Case Study from Oltrepò Pavese", Proceedings of the E3S Web of Conferences, 9, 1-6.

10.1051/e3sconf/20160915005
2

Chae, B.G., Park, H.J., Catani, F., Simoni, A., and Berti, M. (2017), "Landslide Prediction, Monitoring and Early Warning: A Concise Review of State-of-the-art", Vol.21, No.6, pp.1033-1070.

10.1007/s12303-017-0034-4
3

GeoStudio (2016), version 8.0.10, Manual for SLOPE/W and SEEP/W modeling, GEO-SLOPE International, Ltd., Calgary, Alberta, Canada.

4

Jeong, S.-S., Hong, M.-H., and Kim, J.-H. (2018), "A Wireless Sensor Network Technique and its Application in Regional Landslide Monitoring", Journal of the Korean Geotechnical Society, Vol.34, No.9, pp.19-32.

5

Kim, J.-H., Jeong, S.-S., Kim, Y.-M., and Lee, K.-W. (2013), "Proposal of Design Method for Landslides Considering Antecedent Rainfall and In-situ Matric Suction", Journal of the Korean Geotechnical Society, Vol.29, No.12, pp.11-24.

10.7843/kgs.2013.29.12.11
6

Kim, T.-W., Yoo, H.-S., Park, S.-I., and Kim, J.-H. (2022), "Slope Stability in Logging Areas Using Unmanned Aerial Vehicle Imaging", Journal of the Korean Geotechnical Society, Vol.38, No.7, pp.39-47.

7

KMA Weather Data Service, Korea Meteorological Administration, https://data.kma.go.kr.

8

Korean Statistical Information Service, Korea Forest Service, https://www.forest.go.kr.

9

Nasseri, M., Kim, J., Green, R., and Alam, M. (2017), "Identification of the Optimum Relocalization Time in the Mobile Wireless Sensor Network Using Time-bounded Relocalization Methodology", IEEE Transactions on Vehicular Technology, Vol.66, No.1, pp.344-357.

10.1109/TVT.2016.2535438
10

Ramesh, M.V. (2014), "Design, Development, and Deployment of a Wireless Sensor Network for Detection of Landslides", Ad Hoc Networks, Vol.13, pp.2-18.

10.1016/j.adhoc.2012.09.002
11

Song, Y.S., Chae, B.G., and Lee, J.T. (2016), "A Method for Evaluating the Stability of an Unsaturated Slope in Natural Terrain during Rainfall", Engineering Geology, 210, pp.84-92.

10.1016/j.enggeo.2016.06.007
12

Zhang, Z., S. D. Glaser, R. C. Bales, M. Conklin, R. Rice, and D. G. Marks (2017), "Technical Report: The Design and Evaluation of a Basin-scale Wireless Sensor Network for Mountain Hydrology", Water Resour. Res., Vol.53, pp.4487-4498.

10.1002/2016WR019619
Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 40
  • No :6
  • Pages :45-55
  • Received Date : 2024-10-21
  • Revised Date : 2024-12-09
  • Accepted Date : 2024-12-11
  • DOI :https://doi.org/10.7843/kgs.2024.40.6.45
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