Modification of surface movement and deformation calculation model based on polynomial method
ZHANG Feng1,2， QIN Hongyan3， TI Zhengyi2
(1.Department of Mining Engineering， Shanxi Institute of Technology， Yangquan， Shanxi 045000，China；2.School of Mining， Liaoning Technical University， Fuxin， Liaoning 123000， China；3.Safety Engineering Institute， North China Institute of Science and Technology， Beijing 101601， China)
Abstract：In view of the large error in the calculation result of surface movement deformation value based on probability integral method， there is a difficult problem of safety risk in evaluating the risk of overlying structures after coal seam mining. According to the calculation principle relationship between surface subsidence value and other movement deformation values， and combined with the calculation results and measured results of surface movement deformation after coal seam mining， a method of modifying the calculation model by polynomial method is proposed， and a calculation model of surface movement deformation value based on the superposition of probability integral method and polynomial method is constructed. Taking the measured data of the surface subsidence value of the mined face of a mine as an example， the research results show that the error range between the surface subsidence value obtained after the correction of the calculation model and the measured results is only 0.1～0.4 m， which greatly reduces the error range of the calculation model.
张 峰,秦洪岩,题正义. 基于多项式法的地表移动变形计算模型修正[J]. 华中师范大学学报(自然科学版), 2022, 56(5): 763-770.
ZHANG Feng,QIN Hongyan,TI Zhengyi. Modification of surface movement and deformation calculation model based on polynomial method. journal1, 2022, 56(5): 763-770.
2022, Vol. 56 
