城镇供热直埋管道安全评价和健康状态诊断

Safety Evaluation and Health Status Diagnosis of Urban Directly Buried Heating Pipelines

针对城镇供热直埋管道,建立安全评价和健康状态诊断体系(简称评价诊断体系)的非开挖检测技术,对供热直埋管道安全评价和健康状态诊断方法进行说明。经过6个项目近5 km的开挖验证,评价诊断体系的诊断结果与开挖结果符合率大于80%,评价诊断体系有效。

Aiming at the urban direcdy buried heating pipeline,the trenchless detection technology of safety evaluation and health status diagnosis system(referred to as evaluation and diagnosis system)is established,and the safety evaluation and health status diagnosis methods of direcdy buried heating pipeline are explained.After nearly 5 km of excavation in 6 projects,the coincidence rate between the diagnosis results of the evaluation and diagnosis system and the excavation results is more than 80%,and the evaluation and diagnosis system is effective.