Analysis of non-uniform settlement at the ground induced by underground engineering

Underground engineering,sometimes, can generate the unbalanced strata displacement, the nonuniform settlement at the ground surface will be then brought about as the unbalanced strata displacement has reached the ground surface.This paper gives a systemic analysis for nonuniform settlement at the ground induced by faults. The nonuniform settlement at the ground can be divided into 5 types. 7 influence factors should be taken into account, such as the time, the fault scale, the state of fault surface, the fault angle, the distance between the excavation place and the fault, the relation of the excative direction and the fault strike, the thickness of the cover. the primary factor should be found out in order to take correlative measure when confirming the influence of fault on nonuniform settlement at the ground. Finally, the experience formula of Q(x) has been modified.