Discussion on the Stress Problems of Natural Gas Pipelinesin Water Sealed Tunnels
The long-distance natural gas pipeline is the lifeline of China's energy development.China has successively built and put into use long-distance pipelines such as the West East Gas Pipeline 1 and the West East Gas Pipeline 2.It is inevitable to cross the Yellow River,Yangtze River,and other areas,forming a controlled crossing tunnel.Some of them are water sealed tunnels.Because pipelines generate buoyancy in water.The change in the stress situation of the pipeline before and after water injection makes the constraint of the pipeline in the water sealed tunnel a thorny issue.This article studies the stress situation of the pipeline inside a water sealed tunnel before and after water injection based on the on-site inspection process of the pipeline.
Water sealed tunnelAnchor pierPipeline deformationPipeline stressSupport constraint force
NETL
NSTL
万方数据
