共查询到20条相似文献,搜索用时 187 毫秒
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在实际水尺检量工作中,对船舶排水量计算的排水量纵倾修正公式,不同国家和地区的水尺检量员存在不同的认识。该文就存在的几种不同的算法进行分析,指出水尺检量计算中船舶吃水差和船舶长度的使用要相互对应,并给出两例实船验证。 相似文献
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<正>[提要]按照《国内水路货物运输规则》的规定,在散装货物运输中,承运人与托运人应对按重量交接的货物约定货物交接的计量方法,没有约定的应当按船舶水尺数计量,未能按水尺数计量的,运单中载明的货物重量对承运人不构成交接货物重量的证据。双方没有约定的,收货人并不能以其他方式计量的接收货物的重量来计算货差,并以此向承运人主张赔偿。 相似文献
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对装运散装货物的船舶而言,用水尺检量之方法核定散装货物重量仍是目前普遍使用的有效方法,常常出现的货差纠纷多与水尺检量的计算核定有关,也涉及一些需要注意的问题。 相似文献
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浅谈散货船运输中水尺计重的关键问题 总被引:1,自引:1,他引:0
通过水尺计重和船舶常数测定关系的研究,论述了水尺计重的误差及其关键问题-船舶常数的测定精度,并相应提出了大副在水尺计重实施中应遵循的原则和应掌握的方法,以便在水尺计重工作中提高计量精度,保护船方及承运人的根本利益,顺利交付货物。 相似文献
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<正>1静水力参数在水尺计量中的应用及注意事项记得刚做大副时,我船从印度装运铬矿回国内锦州港卸货,卸货结束公估水尺(水尺计量)后,商检计量员和船上大副的计量报告相差无几。于是,他就跟我探讨关于水尺计量中遇到的问题。一次他为一艘外籍8万吨散货船做水尺计量时,计算出的货物重量和提单 相似文献
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正0引言在货物运输过程中,船舶常用载重线密度计和水尺计量密度计2种密度计。这2种密度计用途不同,船舶驾驶员、水尺计量人员和货物装运相关的人员只有充分了解这2种密度计的不同之处,才能正确使用密度计计量船舶货物质量,避免超载。1载重线密度计载重线密度计也叫比重密度计,用于测量港水密度以判断船舶在给定水线处的排水量是否满足《1966年国际载重线公约》的要求。该公约第12条 相似文献
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水尺计量由于操作方便省时省力所以在散杂货船舶上应用广泛,为了提高水尺计量的准确性,本文针对水尺计量工作中的误差进行了原因分析,通过分析提出了降低水尺计量误差的一些措施,以期对实践工作有所裨益。 相似文献
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压力式验潮仪具有成本小、操作简单、布设方便且性能稳定等优点,在水深测量中具有明显优势。结合中缅原油管道项目原油码头及航道通航水域复测工程实际情况,从大气压、水密度及零点漂移3个方面分析了影响压力式验潮仪数据误差的主要因素,得出如下结论:同步观测大气压的变化,可以消除或降低大气压变化的影响;减小验潮仪的投放深度和采用底层海水密度计算潮位数据可显著降低海水密度变化产生的影响;比较多个验潮仪在空气中同步观测的大气压值,以确定其零点漂移校正值。结合项目实际情况,介绍了同步验潮法高程传递。 相似文献
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长江口水域一直采用传统有验潮和GPS-RTK相结合的水深测量方法,但现有潮位站无法控制整个区域,RTK差分信号受距离限制又无法做到全覆盖,制约了水深测量效率与精度。GPS-PPK技术具有作业范围广、测量速度快、定位精度高等优点,不受无线电传输距离和通信网络环境的限制。通过在不同作业距离下的精度测试,GPS-PPK技术较传统有验潮和GPS-RTK结合的测量方法具有更高的作业效率和整体精度,可应用于长江口地区水深测量。 相似文献
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1改建背景
近年来,运输船舶数量增幅较快,且向大吨位发展.相对于此,货物运输总量却增加缓慢,运力大于运量的矛盾日显突出.矛盾的加剧直接导致货物运价持续低迷,加之高价位燃油和过长的运输周期等客观因素共存,可以想象水运企业运作的困苦和艰辛.江苏省运河航运有限公司为适应水运市场求生存、谋发展的需要,充分挖掘企业原有运输船舶的潜力,先期对90年代建造的、船龄较短的500t级货驳进行技术改建,以通过较低的投入,使其载重吨位有明显的增加,从而获得较大的经济效益.为此,特邀请江苏省船舶设计研究所、淮安市船舶检验局的部分同志与该公司的有关领导及工程技术人员共同磋商船舶改建方案. 相似文献
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This is the second of two papers on cargo handling productivity presenting the results of the model developed int he first [1] which had been designed to test a productivity measurement method with cross-sectional empirical data. Four productivity measures were employed. Two related cargo handling to time, with labour brought into the analysis as an independent variable. The third productivity measure expressed total throughput as an aspect of labour productivity, while the final measure was a full productivity index developed by relating output to both capital and labour.
The productivity measurement technique demonstrated that this method can be used for cross-sectional studies and can cope with and allow for variation in non-controllable extraneous factors, thus proving useful for policy decision-makers in shipping lines and/or port authorities.
This paper presents the results of the prodictivity analysis for which the analytical design was decribed in Part 1. The first section briefly restates the productivity indices developed. The principal results and tests on these measures are present in Section 2 with conclusion following in Section 3. 相似文献
The productivity measurement technique demonstrated that this method can be used for cross-sectional studies and can cope with and allow for variation in non-controllable extraneous factors, thus proving useful for policy decision-makers in shipping lines and/or port authorities.
This paper presents the results of the prodictivity analysis for which the analytical design was decribed in Part 1. The first section briefly restates the productivity indices developed. The principal results and tests on these measures are present in Section 2 with conclusion following in Section 3. 相似文献
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The dynamic response of flat horizontal plates vibrating in air and under water has been investigated experimentally and analytically. The effect of the boundary conditions and the depth of submergence of the plates has been studied. Excellent agreement was obtained between the analytical solution and the experimental results. An approximate expression for the evaluation of the modal added masses for rectangular plates has been derived. This can be used to estimate the natural frequencies of plating constituting the internal structure within the cargo spaces in tankers and liquid cargo carriers. 相似文献
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相运福 《船舶标准化工程师》2013,(6):19-21
文章简要介绍了《原油油船货油舱保护涂层性能标准》(以下简称"货油舱PSPC"),通过与压载舱保护涂层性能标准(以下简称"压载舱PSPC")的比较,分析了货油舱PSPC与压载舱PSPC相异的技术条款对船舶建造的影响,研究了大连中远川崎船舶工程有限公司满足货油舱PSPC实施难点的对应措施。 相似文献
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The nickel ore slurry sloshing in a rolling partially loaded prismatic cargo hold with a longitudinal baffle is investigated. A numerical model based on the volume of fluid (VOF) method and the non-Newtonian Herschel-Bulkley and Bingham equations is proposed to study the dynamic behavior of nickel ore slurry sloshing. The numerical model is solved by using the finite volume approximations and the dynamic mesh technique is utilized to handle the cargo hold's motion. After taking grid and time step independence study, the numerical results are compared with experimental data. Comparisons show good agreement in the cases investigated. Further, the relationship between the moment amplitude induced on the hold boundary and the excitation frequency is checked numerically. The ratio of baffle height to the initial cargo depth has been changed in the range of 0.0 ≤ hB/d ≤ 1.2. The variation of the sloshing-induced moment and the deformation of the free surface under different baffle heights have been obtained and discussed. To clearly understand the sloshing behavior of nickel ore slurry, the sloshing of liquid water has also been carried out. Meanwhile, the dynamic viscosity of the nickel ore slurry is monitored. The critical baffle height with regard to the sloshing-induced moment and the elevation difference of the free surface at two sides of the cargo hold has also been presented and discussed. 相似文献