Abstract
This paper presents a case study of stabilization of a transmission tower foundation influenced by underground coal mining on mountains. The tower foundation is built on land that is going to be mined, and it belongs to a 1000 kV UHV (ultra high voltage) transmission line in Shanxi province. Considering the synergistic effects between rock and transmission tower foundation, the transmission tower foundation deformation and the potential dangerous situations were calculated by using FLAC3D code numerical simulation. The comparison of results by numerical and analytical calculation was conducted as well. According to simulation results, the tower foundation deformation is dominated by the effect of coal mining rather than rock slope sliding. The potential moving track of tower foundation surface points is incomplete “C” shape in adverse slope situation. The modified reinforced concrete slab foundation combined with protection panel and length-adjustable anchor bolts is recommended in this paper. The UHV tower foundation construction followed the recommended method was completed in 2015. Further field monitoring data show that the modified tower foundation can be suggested to guarantee the safety of transmission tower during coal seam mining.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Fengli, Y., et al.: Assessment on the stress state and the maintenance schemes of the transmission tower above goaf of coal mine. Eng. Fail. Anal. 31, 236–247 (2013). https://doi.org/10.1016/j.engfailanal.2013.02.001. Elsevier
Guanglin, Y., et al.: The anti-deformation performance of composite foundation of transmission tower in mining subsidence area. Procedia Earth Planet. Sci. 1, 571–576 (2009). https://doi.org/10.1016/j.proeps.2009.09.091. Elsevier
Guoqing, H., et al.: Mine Subsidence. China University of Mining and Technology press, Xuzhou (1994). ISBN 9787810214490
Khanal, M., et al.: Prefeasibility study—Geotechnical studies for introducing longwall top coal caving in Indian mines. J. Min. Sci. 50, 719–732 (2014). https://doi.org/10.1134/S1062739114040139. Springer
Kratzsch, H.: Measures to reduce mining damage. Min. Subsid. Eng. (1983). https://doi.org/10.1007/978-3-642-81923-0_15. Springer
Liang, L., et al.: Evaluation theory and application of foundation stability of new buildings over an old goaf using longwall mining technology. Environ. Earth Sci. 75, 763 (2016). https://doi.org/10.1007/s12665-016-5574-9. Springer
Likar, J., et al.: Analysis of geomechanical changes in hanging wall caused by longwall multi top caving in coal mining. J. Min. Sci. 48, 135–145 (2012). https://doi.org/10.1134/S1062739148010157. Springer
Ping, X., et al.: Safety analysis of building foundations over old goaf under additional stress from building load and seismic actions. Int. J. Min. Sci. Technol. 24, 713–718 (2014). https://doi.org/10.1016/j.ijmst.2014.03.030. Elsevier
Qianjin, S., et al.: Limits to foundation displacement of an extra high voltage transmission tower in a mining subsidence area. Int. J. Min. Sci. Technol. 22, 13–18 (2012). https://doi.org/10.1016/j.ijmst.2011.07.002. Elsevier
Wenxiu, L. et al.: Ground movements caused by deep underground mining in Guan-Zhuang iron mine, Luzhong, China. Int. J. Appl. Earth Observation Geoinf. 12, 175–182 (2010). https://doi.org/10.1016/j.jag.2010.02.005. Elsevier
Zhaoping, M., et al.: Deformation, failure and permeability of coal-bearing strata during longwall mining. Eng. Geol. 208, 69–80 (2016). https://doi.org/10.1016/j.enggeo.2016.04.029. Elsevier
Acknowledgments
The authors sincerely thank the following agents for their financial supports: National Natural Science Foundation of China (41472259, 51274209); The 13th Five-year Period National Key Research and Development Program of China (2016YFC080250504).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer International Publishing AG, part of Springer Nature
About this paper
Cite this paper
Liu, B., Ma, Y., Cao, B., Xu, W. (2019). Stabilization on 1000 kv UHV Transmission Tower Foundation Influenced by Underground Coal Mining in Mountainous Areas. In: Frikha, W., Kawamura, S., Liao, WC. (eds) New Developments in Soil Characterization and Soil Stability. GeoChina 2018. Sustainable Civil Infrastructures. Springer, Cham. https://doi.org/10.1007/978-3-319-95756-2_8
Download citation
DOI: https://doi.org/10.1007/978-3-319-95756-2_8
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-95755-5
Online ISBN: 978-3-319-95756-2
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)