Control Effect of Alluvium and Bedrocks on Surface Subsidence

Abstract:

Through analyzing the structure of the alluvium and bedrocks, a discrimination method of main influence factors of surface subsidence was proposed, and the discrimination formula was put forward. Taking the overburden and ground surface of the large cutting height working face in Bin Chang mining region as the research object, the structure and location of key stratum and the structure of the alluvium was analyzed. Besides, through the surface monitoring, the parameters of ground movement and deformation was given, and the discrimination method was verified to be correct. Furthermore, using numerical simulation, the alluvium and bedrocks influences on the surface subsidence under different mining width were studied respectively; the ground movement and deformation characteristics under the influence of alluvium and bedrocks were put forward. The study has provided a basis for the prediction of surface subsidence under certain conditions.

• Periodical: Applied Mechanics and Materials (Volumes 675-677)
• Pages: 1376-1380
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.675-677.1376
• Online since: October 2014
• Authors: Xue Yi Yu, Qi Wang, Bing Chao Zhao, Wen Bin Guo, Jin Dong Wang
• Keywords: Alluvium, Bedrocks, Key Stratum, Surface Monitoring, Surface Subsidence

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