Consideration on Design of Underground Utility Tunnel for Emergency Drainage in a Southern City
Urban utility tunnel has become an important part of urban infrastructure construction,but the design of emergency drainage is still lacking of sufficient consideration.In this study,a deep-buried underground utility tunnel in a southern city was taken as an example,and seven kinds of drainage were comprehensively considered,including water inlet at the opening of the utility tunnel,water leakage at the structural joint of the utility tunnel,water leakage at the outlet of the utility tunnel,washing drainage in the utility tunnel,maintenance and emptying drainage,water leakage in the water supply pipeline and water supply pipeline burst drainage.According to the leakage area of water supply burst pipe of different scale,the corresponding emergency drainage measures were put forward,including increasing the daily discharge of drainage pump,setting up emergency drainage pump and mobilizing mobile pumping truck.Finally,the emergency plan of water supply pipe leakage in the utility tunnel was studied and established,and the monitoring requirements and emergency disposal process of pipe explosion emergencies were put forward,in order to minimize the impact caused by sudden pipe explosion.The research results have important guiding significance for the safe operation and emergency drainage design of the water supply pipeline in the utility tunnel.
underground utility tunneldrainage calculationpipeline burst accidentemergency drainage measureemergency early warning plan
国家科技期刊平台
NSTL
万方数据
维普
