Research On Risk Management During Construction Contractor Residential Area Projects Construction Period Based On Grey Colligation Evaluation

For over ten years in the past,residential area projects in all places have developed fast.But a large number of problems have appeared too,such as different construction qualities in different places and unfinished buildings which can be seen everywhere.Faced with high external pressure,the construction contractors,as direct bearer of residential areas project risks,have far more risks.However,in research on construction contractor residential areas projects risks management,there exist many problems that residential area projects have no difference with residential building project and different contracting patterns have no impact on risks management.This article,through consulting and summarizing relevant documents,identifies possible risk factors during construction and makes a list of preliminary risk factors.Meanwhile,bottom layer of risk factors is increased and decreased based on the characteristics of construction contractors and residential area projects and analytical hierarchy process(AHP)risk index system is built,based on which AHP-grey colligation evaluation is used to evaluate the risks during construction.Besides,general suggestions are proposed for the residential area projects during contractors construction period according to evaluation results.This article,with characteristics of construction contractors and residential area projects as the entry point,studies risk management of this aspect and improves the risk evaluation defect of residential area projects during the construction period to some extent.Besides,this article plays a part in enhancing the precision of risk evaluation of this direction.