TY - JOUR A2 - Zhang, Xuepeng AU - Liu, Yu-Fei AU - Wu, Xin-Hua AU - Zhu, Tao AU - Wang, Xian-Jun AU - Zhang, Guo-Yu AU - Wang, Zhi-Gang PY - 2022 DA - 2022/03/01 TI - Influence of Mechanical Properties of Filling Paste on Overlying Strata Movement and Surface Settlement SP - 4687200 VL - 2022 AB - In order to study the relationship between coal seam buried depth and surface subsidence and select appropriate filling materials, taking Donggou coal mine as the engineering geological prototype, through mechanical test and theoretical analysis, this paper studies the distribution characteristics of in-situ stress and the selection of paste filling materials and their proportion test. The influence of different filling strengths on the overburden movement law and surface settlement law of the working face is analyzed. Based on the experimental research and measured research results, the appropriate filling material is selected. The numerical results show that the material ratio scheme 4 can meet the actual needs of surface subsidence in the process of filling mining. At the same time, the surface subsidence value decreases with the increase of coal seam buried depth. SN - 1070-9622 UR - https://doi.org/10.1155/2022/4687200 DO - 10.1155/2022/4687200 JF - Shock and Vibration PB - Hindawi KW - ER -