Abstract: Coupling simulation was used in the buried seabed pipeline, to analyze the temperature field and stress field on the different leakage points. When the oil spilled to the sea mud area, it had the different influences on temperature field of the sea of mud, and there was a regular of distribution. When the leakage point was closed to the left and right sides of the pipe affected by gravity，the isotherm of leakage point moved down，the offside of leakage point moved up，the temperature field presented asymmetric distribution. When the leakage at the bottom of the pipes pressure field distribution was solely discussed, the isobar's distribution was symmetrical on both sides of the pipe, and gradually spread to the sides and top, and diffusion velocity had certain distinction with the leakage of buried pipe.

Key words: The undersea buried pipe, Leakage, Numerical simulation, Temperature field, Stress field 

摘要： 对埋地海底管道进行耦合模拟, 分析了泄漏口在不同位置时海泥的温度场及压力场。当泄漏口在不同位置时, 泄漏到海泥区域的原油对周围海泥温度场产生的影响不同, 但存在一定的分布规律。当泄漏口在管道左( 右) 侧时, 受重力的影响, 泄漏口处的等温线下移, 右( 左) 侧等温线上移, 温度场呈现不对称分布; 泄漏口在管道正下方时, 等压线在管道两侧对称分布, 而且逐渐向两侧和上方扩散。

关键词: 海底埋地管道, 泄漏, 数值模拟, 温度场, 压力场