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http://dx.doi.org/10.21729/ksds.2019.12.2.57

A Study on Estimation of the Collapse Pattern of Road Sink Using Distinct Element Method  

Ham, Myoung Soo (Department of Civil Engineering, University of Seoul)
Park, Seon Woo (Geotechnical Division, SAMBO Engineering)
Lee, Hyun Dong (Senior Research Fellow, UST/KICT)
Publication Information
Journal of Korean Society of Disaster and Security / v.12, no.2, 2019 , pp. 57-63 More about this Journal
Abstract
The road sinks in the sewer line or subway section are affected by the ground characteristics. Therefore, it is necessary to accurately identify the relationship between the soil properties and the ground motion in the area where cavities occurred in order to establish a countermeasure against the road sink. In this paper, simulation was performed by using EDEM program, which is one of the Discrete Element Method programs, for sandy soil and clayey soil, which are most common in alluvial deposits, with different locations and sizes of cavities in the underground. As a result, it was found that the sink size occurred more in the sandy soil than in the cohesive soil. Deeper and larger cavity is more likely to occur the road sink In the sand soil model while road sink in the clay model is easy to occur when the cavity is more shallower.
Keywords
Road Sink; Ground Cavity; Discrete Element Method; EDEM;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 Kim, Jong Woo, Suk Won Jeon, and Young Ho Seo. (2004). A Study on the Effect of Underground Openings on the Stability of Surface Structures Using Scaled Model Tests. Korean Society for Rock Mechanics and Rock Engineering Tunnel and underground space. 14(1): 43-53.
2 Kim, Joo Bong, Seung Kyung Yoo, Jung Geun Han, Ki Kwon Hong, Dong Ho Jung, Young Ho Kim, and Da Som Jung. (2016). Property of Changing Porosity according to Sand Flow in Ground. Korean Geosynthetics Society conference. 2016. 4. 53-54.
3 Kim, Joo Bong, Seung Kyung Yoo, Jung Geun Han, Ki Kwon Hong, and Jong Bup Park. (2017). A Study on Simulation of Cavity and Relaxation Zone Using Laboratory Model Test and Discrete Element Method. Journal of the Korean Geosynthetics Society. 16(2): 11-21.   DOI
4 Kim, Joo Bong, Seung Kyung Yoo, Jung Geun Han, and Young Ho Kim. (2017). A Numerical Study for the Analysis of Mechanical Characteristic of Relaxation Zone Around Cavity. Journal of the Korean Geosynthetics Society. 46-47.
5 Sin, Sang Young. (2016). Experimental investigation of soil arching in trapdoor test using photoelastic measurement technique. Master's thesis. Graduate School KyungHee University.
6 Sim, Dan bi. (2018). Analysis of stress Redistribution in Trapdoor Test Using Discrete Element Method. Master's thesis. The Graduate School KyungHee University.
7 Yoo, Seung Kyung, Joo Bong Kim, Jung Geun Han, Ki Kwon Hong, Jung Man Yoon, and Gang Il Lee. (2017). A Study on Simulation of Cavity and Relaxation Zone Using Finite Element Method. Journal of the Korean Geosynthetics Society. 16(4): 67-74.   DOI
8 Jun, Je Sung, Dong Hoon Sin, and Ik Soo Ha. (2011). Scale Effects of Initial Model and Material on 3-Dimensional Distinct Element Simulation. Journal of the Korean Geo-environmental Society. 12(7): 57-65.
9 Ham, Myoung Soo. (2019). A Correlation Study between Sewer Pipes buried Underground in Metropolitan and Road Sinking. Doctoral thesis. The Graduate School of the University of Seoul.
10 DEM Solutions, Next Engineering&Service. (2018). EDEM Basic Training. 1-54.
11 Waltham, T., Bell, F., and Culshaw, M. (2015). Praxis Publishing. Sinkholes and Subsidence Karst and Cavernous Rocks in Engineering and Construction.