The hydrodynamic action of a submarine pipeline routing area causes the problem of seabed scouring and sedimentation erosion in the seabed damage area caused by man-made operations.To solve this problem,this paper studies a method for analyzing the characteristics of the scouring and sedimentation environment in the routing area based on the hydrodynamic numerical simulation analysis software and model,after the observation of hydrodynamic parameters and seabed sampling in the routing area.Based on the actual two-dimensional flow and sediment mathematical model of engineering,the paper determines the boundary conditions of the model by using the regional measured hydrological and geological data.It effectively simulates the scouring and sedimentation conditions of the pipeline routing area under different model scales.The field measured data verifies the correctness and effectiveness of this method,which can provide technical support for submarine pipeline protection and maintenance evaluation.
关键词
海底管道/路由区/水动力/冲淤特性/风险评估
Key words
submarine pipeline/routing area/hydrodynamics/scouring and sedimentation characteristics/risk assessment