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萧石 《交通世界(建养机械)》2009,(16):72-73
中山市地处珠江三角洲中部偏南地区,是一座经济、文化都比较发达的现代化海滨城市,城市客运也比较繁荣。中山市小榄汽车运输有限公司从2000年到现在,经历了快速的发展。它的发展过程,与厦门金旅有着一层亲密的关系。 相似文献
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上海内河,是长三角内河船舶进出的重要门户,也是为上海国际航运中心接纳各类建设物资的水上大通道。在内河水域的最前线,守护着一支特别能吃苦、特别能战斗、特别能攻关、特别能奉献的地方海事队伍,这支队伍集合了一批刻苦敬业、默默奉献、敢打硬仗的精兵强将,王海滨同志就是其中的典型代表。 相似文献
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Jacket platform was simulated by non-uniform cantilever beam subjected to axial loading. Based on the Hamilton theory, the equation of bending motion was developed and solved by the classical Ritz method combined with the pseudo-excitation method (PEM) for non-stationary random response with non-classical damping. Usually, random response of this continuous structure is obtained by orthogonality of modes and some normal modes of the structure are needed, causing inconvenience in the analysis of the non-uniform beam whose normal modes are not easy to be obtained. However, if the PEM is extended to calculate random respouse by combining it with the classical Ritz method, the responses of non-uniform beam, such as auto-power spectral density (PSD) function, croes-PSD and higher spectral moments can be solved directly avoiding the calculation of normal modes. The numerical results show that the present method is effective and useful in aseismic design of platforms. 相似文献
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海滨地带场地地貌多为滩涂,局部经人工回填改造,土层中地下水与海水存在水力联系,深基坑支护难度系数较高.以沿海某公路工程雨水泵站深基坑支护的施工为例,结合工程实际特点,对比分析不同深基坑支护工程施工工艺、咬合桩施工设备以及双动力头全套管钻机成桩施工工艺特点,确定支护结构方案为双动力全套管钻孔咬合桩.从施工过程控制、导墙施... 相似文献