Study On The Deformation Law Of Hancheng Mining Area

Underground coal mining in Hancheng mining area destructs the ecological environmentof the mining area, buildings, and the original balance of overlying rock masses. Groundmovement and deformation caused by underground mining, will have a larger impact on thethe buildings and structures located in the affected area. This is generally influenced bysurface through building foundation to building leading to building movement anddeformation. If the geological disasters couple with landslides, sliding, collapse, occurringconditions, it may induce these geological disasters, which leads to a series of seriousenvironmental geotechnical problems. It has brought enormous impact and losses to the mineproduction and people’s life, which will inevitably lead to the contradiction between themining area to the future production and construction, leave huge potential, also seriouslyhinders the construction of local economic development and urban and rural areas at the sametime. Therefore, it is significant to launch Hancheng mining research of dynamicdeformation.In this paper, we analyze the deformation law caused by underground mining surfacesubsidence in southern area and Northern Hancheng and deformation calculation and directrule through the establishment of the southern Hancheng coal mine21306and4310northernland surface movement observation station, compare the difference in the South and north ofthe ground surface movement and deformation, and combine with the collection of miningarea in recent years. Dynamic damage related data and real data indicates that the indirectdeformation, finally concluding that Hancheng mining area mining deformation range,namely southern mining influence is greater than the north, while the surface movementduration is longer than the north south; surface movement is greater than the north, while thenorthern surface deformation is larger than that in the South; In addition to the general miningsurface cracks the outer, northern has landslides and collapse, while the south has moreshallow and deep creep slips. It can provide reference for production,construction, mining and safe living of the people of the mining area.