Seepage Analysis of Large-Scale Embankment Model by Revised TDR Sensor

Park, Min-Cheol; Lee, Jong‐Wook; Kim, Youseok; Han, Heui-Soo

doi:10.7843/kgs.2012.28.11.53

Cited by 5 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Previous studies on levees can be grouped into three research trends: (1) investigations of the mechanism of overflow-induced levee breach and infiltration characteristics of different levee materials [5][6][7][8][9][10][11][12], (2) analysis of seepage and breach behaviors by inserting sensors into a levee [13][14][15][16], and (3) stability analysis of levees with different combinations of reinforcing materials [17,18].…”

Section: Introductionmentioning

confidence: 99%

Biopolymer-Reinforced Levee for Breach Development Retardation and Enhanced Erosion Control

Kang

2020

Water

View full text Add to dashboard Cite

This study proposes an earthen levee reinforcement method with a new biopolymer-based material to prevent levee scour and breach. It is an eco-friendly method that can efficiently protect the levee slope as it enhances soil strength, even at a very low concentration of biopolymer, and has high resistance to surface runoff in addition to promoting vegetation growth. The function and effectiveness of this method were demonstrated through an overflow-based semi-scale experiment in a previous study. In this study, we examined the effect of biopolymer-mixed soil layer on levee stability against an overflow-induced breach. In these experiments, biopolymer-mixed soils were sprayed on the crest and land-side levee surface. Two full-scale tests were conducted (2.5–2.7 m high and 14 m wide on bottom). Case 1 (control case) consisted of bare sand without any treatment, while Case 2 consisted of a 1.0% biopolymer-mixed soil sprayed on the crest and landside slope of the levee and turf put on it. By applying an image analysis technique, we analyzed the breach phenomenon and breach retardation effect of the levee treated with a biopolymer and covered with vegetation. In this experiment, the slope loss rate of Case 2 was retarded 1.5 to 2.3 times over time as compared to Case 1. During the experiment, we observed that soil erosion followed through the narrow water channel formed by the stripped turfs. This means that the grasses did not root firmly enough to protect the surface. In this regard, although the experimental results may seem unsatisfactory, the biopolymer was found to help improve erosion retardation. In 2020, we will conduct more experiments with different compositions and concentrations of the biopolymer regardless of levee vegetation. With this research, we expect to confirm that the new technology of using biopolymer-treated soils is promising for solving the levee overflow breach problem.

show abstract

Section: Introductionmentioning

confidence: 99%

Biopolymer-Reinforced Levee for Breach Development Retardation and Enhanced Erosion Control

Kang

2020

Water

View full text Add to dashboard Cite

show abstract

“…관로분야에서는 광섬유센 서를 이용한 쓰레기 이송관로의 장기계측시스템 구축을 위한 연구가 수행되었고 (Kim and Song, 2016), 지반보강분 야에서는, 앵커의 장기거동 특성과 인장력 손실을 평가하기 위한 연구 (Lee and Lee, 2015) (Sayde et al, 2010;Su et al, 2015;Gurbuz et al, 2017) (Moffitt, 1964), 토양 의 수분함량을 측정하기위해 사용되었다 (Topp et al, 1980). 지반분야에 관한 최근의 연구로는 TDR센서를 이용하여 제방의 포화도 및 지하수위의 해석을 위한 연구 (Kim et al, 2011)와 TDR센서를 이용한 대형 모형제방의 침투해석 을 위한 연구 (Park et al, 2012) Gaskin and Miller, 1996;Miller and Gaskin, 1996;Kim et al, 2008)이 있다. 이때, 매질의 수분량이 증가할수록 진폭은 작아진다.…”

unclassified

Development and Analysis of Long-Term Measurement Systems for Groundwater Level Using Electric Capacity

Kim¹,

Kim²

2021

J. Korean Soc. Hazard Mitig

View full text Add to dashboard Cite

In soil dams and embankments made of soil, deterioration and stress release owing to internal and external influences occur, and the instability of the body increases as the shear strength decreases. In particular, understanding the location and flow of underground water is very important for securing the long-term stability of waterfront structures in contact with water. However, the physical limitations of measuring equipment cause many difficulties in understanding the existence and location of groundwater over a long period of time. In this study, measuring equipment using electric capacity was developed for the long-term measurement of groundwater, and contactless measuring sensors were manufactured to eliminate the possibility of corrosion by water. In addition, the precision of the measurement data was improved by applying waterproof and water-repellent coatings to the measurement sensor. Laboratory tests conducted using the developed equipment demonstrate the high precision of the measurement data according to the groundwater level change and enhanced durability of the sensor, which facilitate long-term measurements in the field.

show abstract

Application of the TDR technique for the detection of changes in the internal structure of an earthen flood levee

et al. 2017

View full text Add to dashboard Cite

Seepage Analysis of Large-Scale Embankment Model by Revised TDR Sensor

Cited by 5 publications

References 3 publications

Biopolymer-Reinforced Levee for Breach Development Retardation and Enhanced Erosion Control

Biopolymer-Reinforced Levee for Breach Development Retardation and Enhanced Erosion Control

Development and Analysis of Long-Term Measurement Systems for Groundwater Level Using Electric Capacity

Application of the TDR technique for the detection of changes in the internal structure of an earthen flood levee

Contact Info

Product

Resources

About