Fig. 1. Geometry Size setting
Fig. 3. Cavity volume/model ground depression volume of soil to total volumn
Fig. 2. Underground Co-location
Table 1. Physical properties of Sandy Soil Model · Clayey Soil Model
Table 2. Simulation condition table
Table 3. The pattern of occurrence of ground depression in each model
References
- 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.
- 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.
- 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. https://doi.org/10.12814/jkgss.2017.16.2.011
- 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.
- Sin, Sang Young. (2016). Experimental investigation of soil arching in trapdoor test using photoelastic measurement technique. Master's thesis. Graduate School KyungHee University.
- Sim, Dan bi. (2018). Analysis of stress Redistribution in Trapdoor Test Using Discrete Element Method. Master's thesis. The Graduate School KyungHee University.
- 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. https://doi.org/10.12814/JKGSS.2017.16.4.067
- 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.
- 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.
- DEM Solutions, Next Engineering&Service. (2018). EDEM Basic Training. 1-54.
- Waltham, T., Bell, F., and Culshaw, M. (2015). Praxis Publishing. Sinkholes and Subsidence Karst and Cavernous Rocks in Engineering and Construction.