E3S Web Conf.
Volume 194, 20202020 5th International Conference on Advances in Energy and Environment Research (ICAEER 2020)
|Number of page(s)||5|
|Section||Environmental Protection and Pollution Control|
|Published online||15 October 2020|
Study on shaping slope stability of dump in eastern grassland open-pit mine
1 CCTEG Beijing Research Institute of Land Renovation and Ecological Restoration Technology Co.,Ltd., Beijing, 100013, China
2 Tiandi(Tangshan) Mining Technology Co.,Ltd., Tangshan 063300, China
3 Tangshan Research Institute, China Coal Technology & Engineering Group, Tangshan, 063012, China
4 Research centre of land Renovation and ecological restoration engineering in the coal industry, Beijing, 100013, China
5 China Coal Science and Technology Ecological Environment Technology Co.,Ltd., Beijing 100013, China.
6 Tangshan Branch of China Coal Science and Technology Ecological Environment Technology Co.,Ltd., Tangshan, 063012, China
* Corresponding author:firstname.lastname@example.org
The dumps in the open-pit mining area in the eastern grassland are prone to landslides due to the fragile ecological environment, so it is inevitable to reshape the dump slopes. In order to explore a more scientific method for slope shaping of open-pit mine dump, slope stability analysis were used to compare effect of three types of slope-type (wave-shaped, slope-shaped and step-shaped slope shaping method)in outside dumping site of Baori Hiller open-pit mine. The results show that the slope stability is negatively correlated with the slope angle, and the stability of different shaping slopes is realized as wave-shaped slope (F=2.711)> Slope-shaped slope(F=2.513)>Step-shaped slope(F=1.047), in which the wave type and slope type are all within the safe range, but the step type slope is unstable; in consideration of cost, stability and erosion resistance, it is better to set the slope angle of the dump to 15°.The wave-shaped shaping method of the natural dumping of the excavation field outside the Baori Hiller open-pit mine has the best effect and is worth promoting.
© The Authors, published by EDP Sciences, 2020
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