基于遗传算法的滩海路堤堤高优化设计研究

Optimization Design of Jetty Road Height Based on Genetic Algorithms

滩海路是为了开发丰富的滩海石油资源而修筑的联系陆地与人工岛的纽带。浅海滩涂地带受潮汐影响,水陆界伸缩很大,这就造成了滩海路建设具有费用高、风险大、工期长、维修费用高的特点。堤高是影响滩海路堤工程建设总费用的关键因素,其合理确定对于保证滩海路通行天数、降低工程建设总费用是至关重要的。基于遗传算法,结合全寿命周期成本理论,建立了滩海路堤堤高多目标优化设计模型,并对渤海海域某工程地的滩海路堤进行优化设计,同原设计比较表明:利用该方法具有优越性,可以节省工程建设资金。

Jetty road is the link of shore to artificial island. It is used for marine oil exploitation and production. As a result of special terrain conditions of shallow beach area affected by tide, the project construction of jetty road has the characteristics of higher investment, higher degree maintenance cost. The most important factor that influences the cost of risk, longer construction duration and higher is the height of jetty road. To assure reasonable working days, maintain quality and reduce the project cost, it is important to determine a proper road height. Combining with full life-cycle cost theory, this paper presents a genetic algorithms （GAs） model for multiobjective optimization design of jetty road height. The model is applied to oil field around Bohai Sea, and the numerical results show that the optimistic models perform well for optimistic problem and reduce the engineering cost.