Abstract
This paper presents an experimental investigation of development of water flowing fractured zone due to coal mining under sea area by scaled model test. Two models are designed to simulate coal mining along the strike and the dip. In model 1, the thickness of the overburden varies from 74 to 124 m and coal seam dips at an angle of 8°, and model 2 with a overburden thickness of 90 m and a dip angle of 0°. The results indicate that the height of overburden caving and water flowing fractured zones both increase at first then decrease to a comparatively stable values with the mining distance increasing; the height of overburden water flowing fractured zone increases significantly with the thickness of the overburden increasing and the height of overburden caving zone does not. When the coal mining thickness is 6 m, the maximum height of overburden water flowing fractured zones is 64.16 m (in model 1) and 48.20 m (in model 2), the maximum height of overburden caving zones is 12.76 m (model 1) and 12.00 m (model 2), respectively. The research results provide a helpful basis for upper mining limit decision-making and risk assessment.
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References
Liu, G., Liu, Z., Zhang, H., et al. (2011). Physical simulation of isolated pillar controlling role to overlying strata failure in conditions of fully-mechanized top-coal caving mining under Jing River. Rock and Soil Mechanics, 32(supp. 1), 433–437.
Peng, K., Li, X., Peng, S., et al. (2011). Ore-rock stability of frame stope hierarchical level filling mining method in seabed mining. Journal of Central South University, 42(11), 3452–3458.
Sui, W., Cai, G., & Dong, Q. (2007). Experimental research on critical percolation gradient of quicksand across overburden fissures due to coal mining near unconsolidated soil layers. Chinese Journal of Rock Mechanics and Engineering, 26(10), 2084–2091.
Sui, W., Dong, Q., Cai, G., et al. (2008). Quicksand Hazards in Underground Coal Mines: Mechanism and Prevention. Beijing: Geological Publishing House.
Sun, H. (1998). Prospect of mining under sea in China. China Coal, 08, 38–40.
Sun, Y., Xu, Z., & Dong, Q. (2009). Monitoring and simulation research on development of water flowing fractures for coalmining under Xiaolangdi Reservoir. Chinese Journal of Rock Mechanics and Engineering, 28(2), 238–245.
Xia, X., Sui, W., & Yang, W. (2008). Model test and numerical simulation of overburden failure process in multi-coal seam mining. Journal of Engineering Geology, 16(4), 528–532.
Acknowledgments
The authors want to acknowledge the financial support of the National Natural Science Foundation—Shenhua Group Jointly Funded Project under grant No. 51174286. This research was also supported by A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions and the Fundamental Research Funds for the Central Universities.
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Wang, W.X., Hu, W., Liang, Y.K. (2013). Experimental Investigation for Water Flowing Fractured Zone Due to Coal Mining Under Sea Area. In: Huang, Y., Wu, F., Shi, Z., Ye, B. (eds) New Frontiers in Engineering Geology and the Environment. Springer Geology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31671-5_37
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DOI: https://doi.org/10.1007/978-3-642-31671-5_37
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-31670-8
Online ISBN: 978-3-642-31671-5
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