摘要
建立船闸过闸简化模型,运用蒙特卡洛方法与二维装箱启发式算法相结合的随机仿真方法,对不同尺度船闸设计方案的通过能力进行计算,结合船闸通过能力的影响因素和定量计算结果进行分析讨论,论证和优选合理的设计方案。计算结果表明:采用船舶先到先服务策略时,同等宽度船闸的闸室利用率大致相同,一次过闸吨位指标随闸室长度扩大而增加;采用船舶优选服务策略时,一次过闸吨位指标较先到先服务策略计算指标略高,而平均待闸次数指标在船闸达到繁忙状态后呈单增趋势;L4船闸方案在船型适应能力、通过保证能力、服务质量水平等指标上均显示出优势;在随机排挡一次过闸吨位的基础上计算通过能力时,须结合船闸实际运营情况,合理确定规范公式参数。
Establishing a simplified model for ship lock passing,using the stochastic simulation method combining the Monte Carlo method and 2D bin-packing heuristic algorithm,we compute the passing capacity of different ship lock design schemes at different scales,discuss the results for different simulation implementations considering different factors,and optimize the reasonable design scheme.The results show that when using the ship's first-come-first-served strategy,the lock chamber utilization rate of ship locks of the same width is about the same,and the tonnage index of one-pass ship lock increases as the ship lock chamber length increases.When the ship selection service strategy is adopted,the tonnage index of the first pass is higher than the calculated index of the first-come-first-served service strategy,and the average number of times to ship lock the gate shows a single increase trend after the ship lock reaches the busy state.The L4 ship lock design scheme shows advantages in ship type adaptability,pass ability,service quality level and other indicators.When calculating the pass capacity on the basis of the random simulation of the ship lock,it is necessary to reasonably determine the specification formula parameters in conjunction with the actual operation of the ship lock.
作者
王伟
黄涛
WANG Wei;HUANG Tao(Anhui Transport Survey&Design Institute Co.,Ltd.,Hefei 230011,China)
出处
《水运工程》
北大核心
2021年第1期162-167,共6页
Port & Waterway Engineering
关键词
蒙特卡洛方法
二维装箱
船闸通过能力
方案优选
Monte Carlo method
2D bin-packing
ship lock capability
design optimization
