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Breakthrough innovations, whether technological, organizational or both, are a necessity if the market share of intermodal freight transport is to expand. The main growth potential lies in the markets for flows over short distances, for perishable and high-value commodities, for small consignments, and for flows that demand speed, reliability and flexibility. It will take radical innovations to produce a breakthrough in the modal split and allow these new markets to be conquered. This special issue is based on papers presented at an international conference on freight transport automation and multimodality, held in Delft in May 2002, that are illustrative of the direction of breakthrough research and development (R&D) aimed at increasing the market share for intermodal transport. 相似文献
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在不规则波中对某5000吨级的江海通航顶推船进行了两销式铰接装置的载荷模型试验.模型试验数据的无因次分析表明,在浪向角60°情况下铰接装置受力比其它浪向角时都要大,并且铰接装置受到的水平弯曲力比垂向弯曲力、轴向力大得多.推导了服从Weibull概率分布变量的短期概率极值预报公式.针对试验数据,进行了实船12小时短期概率极值预报,结果表明,在设计波高4.2m时,超越概率1%时的最大弯曲力相当于该顶推船推轮的排水量.本次试验及其数据预报的极值可供设计同类型铰接装置的江海通航顶推船时参考使用. 相似文献
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由于汛期气象、水文变化非常大,停泊在邕江河段的无动力趸船如果没有可靠的锚泊及系泊设备,将会随波逐流,对南宁市十多座桥梁的安全构成严重的威胁.文章从南宁市汛期的实际情况出发,将现行规范和理论计算相结合,对漂浮在邕江河面上的无动力趸船行汛期受力情况进行分析,提出了保障无动力趸船汛期安全的措施. 相似文献
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水驳的建造相对来讲比较简单,但建造后如何下水成为我们修船厂的一个难点,采用重力式下水设备简单,同时具有安全方便操作等特点。 相似文献
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