Failure Analysis Of Masonry Structure Above Mine Goafs

Coal reserves in our country are rich and they are mined as important energy in industryand life. According to statistics，coal reserves below building are up to8.76billion tons. Theyare mined heavy with the rapid development of social and economic. At the same time, thebuilding sites are in short supply because of the acceleration of urbanization and theconstruction of infrastructure. Building above the old golfs is becoming an inevitable choice.Surface subsidence and deformation caused by golf do much harm to buildings such as crackand deformation. It not only affects normal use but also relates to the safety of life and property.The strength and anti-cracking performance of masonry structure are poorer comparedwith the other structures, so that they are more vulnerable to be affected. Therefore research ofthem is representative. Buildings above old golf are more masonry bungalows now. Study inthis field is filled of great economic value and social benefits which is appreciated more andmore widely.Take the base area projection function as a solving tool. In this paper, effect of the goafsurface deformation is translated on foundation of masonry structure by theoretical derivationand mathematical calculations. Then, additional load of structure can be given. Through stripanalysis, deformation and force of the wall is known at last which is programed by FORTRANand VB language.