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1.
为了完善内河船舶规范计算软件系统,为小型船舶的设计、审图、检验与发证提供快捷、准确、可靠的计算手段,保证《内河小型船舶法定检验技术规则》(2007)和《内河小型船钢质船舶建造规范》(2006)的正确实施,保障船舶航行安全、支持内河小型船舶的发展,武汉规范所研制开发了“内河小船计算软件系统”,目前正在各设计单位和船检部门进行应用测试,预计将于今年10月份正式对外发行。  相似文献   

2.
国内信息     
《中国海事》2006,(11):66-70
《沿海小型船舶法定检验技术规则》和《内河船舶法定检验技术规则(2007年修改通报)》自2007年3月1日起实施。该《技术规则》将由人民交通出版社发行(联系电话:010—85285577)。  相似文献   

3.
在船舶的营运检验过程中,笔者发现梅州辖区大部分船龄较大的采砂船舶未安装或只安装了简单的灯光信号配备,不能完全满足《内河小型船舶检验技术规则》、《内河船舶法定检验技术规则》和《中华人民共和国内河避碰规则》的要求,验船师在检验过程中提出按照法规配备相关的信号设备,但船东反映辖区大部分水域与外界不通航,船舶通航密度小,夜间无航行要求,配备灯光信号的实用性不强,抵触情绪较大。本文通过笔者在检验过程中发现的问题并结合工作经验,提出梅州辖区典型船舶灯光信号配备基本要求。  相似文献   

4.
林丽华 《水运管理》2007,29(4):36-38
结合海事管理现场执法实践,介绍一种现场估算内河小型船舶总吨位的方法,即将《船舶与海上设施法定检验规则》中的规范算法进行简化,通过对不同容积船舶吨位的数据验证表明,这种方法既简易实用,又可以提高执法效率。  相似文献   

5.
田金平 《中国水运》2003,(11):32-32
燃油系统是船舶生命力的保障,因此,对它的检验十分重要.1991年<内河钢船建造规范>和1999年<内河船舶法定检验技术规则>对船舶燃油系统都进行了明确规定.笔者结合验船实践,浅谈内河货船燃油管路系统检验的注意事项.  相似文献   

6.
冯志宝 《江苏船舶》2004,21(6):28-30
介绍 2 0 0 4年 3月 1日起实施的 2 0 0 4年版《内河船舶法定检验技术规则》有关内容 ,以及与 1999年版《内河船舶法定检验技术规则》在依据、结构和内容上的异同 ,方便业内人士学习、理解和运用新法规。  相似文献   

7.
《内河船舶法定检验技术规则》(2008修改通报)对内河船舶防止生活污水做了强制性规定,要求内河船舶应设置防止生活污水污染系统,并具有《内河船舶防止生活污水污染证书》。本文从法规要求出发,简要介绍内河船舶防止生活污水污染的处理方法以及检验发证,为内河船舶正确选用防止生活污水污染的配套设施、获得防止生活污水污染证书提供有益的参考。  相似文献   

8.
船舶可以分为国际海船、国内海船、内河船舶和内河小型船舶。那么对于不同层级的船舶和不同的检验类别,船体验船师所需要配备的检验装备则有很大差异。比如对于内河船舶包括"内河小船",验船师每次所需要携带的检验装备往往要根据船舶和运营区域的较大差别而对应调整,需要带哪些装备基本由验船师自己来抉择和调整。这个装备问题将对检验的效率和质量的把控程度起到很大程度的决定作用。  相似文献   

9.
《江苏船舶》2017,(6):39-41
结合内河LNG动力船舶自身的特点,以《天然气燃料动力船舶规范》(2017)和《内河天然气燃料动力船舶法定检验暂行规定》(2017)为主要依据,首先对内河LNG动力船舶图纸审核的内容进行了归纳,其次分析了每一类图纸的审核方法和审核要点,最后对内河LNG动力船舶布置及其各个系统的要求进行了梳理和规范。  相似文献   

10.
郑剑 《珠江水运》2016,(4):92-93
在船舶的营运检验、建造检验和审图过程中,笔者发现区内很多船舶的号灯号型的安装配备不能完全满足内河避碰规则及内河船舶法定检验技术规则,以及船员、船厂对信号灯的使用知识存在许多盲区。本文通过笔者检验过程中发现的问题并结合工作经验,对相关问题提出建议。  相似文献   

11.
We present the observations from a pair of field experiments at the New England shelfbreak front in June and August of 2002, each consisting of 14 cross-frontal surveys using the Lamont Pumping SeaSoar. Measurements of the front's physical, chemical, and bio-optical characteristics were made at high spatial and temporal resolution. The front, based on water-column hydrographic distributions, was found within a few km of the 200 m isobath during both cruises. We present here composite sections, based on averages of individual sections shifted in space to a common frontal location, of the cross-frontal distributions of these properties as a measure of the mean state of the front in both June and August. The observations show the familiar temperature, salinity, and density distributions of the summertime front, dominated by surface thermal heating. Nutrient and bio-optical distributions show the combined effects of water-mass exchange and biological processes. T, S, silicate, and phosphate distributions are suggestive of cross-frontal exchange of slope- and shelf waters, although transport mechanisms and pathways are not apparent. These properties, along with nitrate and optical measures of the suspended particle distributions, show vertical displacements of isopleths as the front is approached: property contours slope upwards toward the front from the shoreward side, and downwards toward the front from the seaward side. Again, actual water-movement pathways are not constrained by these suggestive patterns. Bio-optical distributions show elevated indicators of photosynthetic efficiency both seaward and shoreward of the front, but the front itself is a minimum in biomass. Accumulation of photosynthetic biomass appears to be controlled primarily by nitrate scarcity in waters within and above the pycnocline. At the base of the pycnocline, light limitation appears to be the controlling factor, although the base of the euphotic zone is deeper than the biomass maxima and the base of the pycnocline. Mechanisms explaining this phenomenon are unclear, but tenuous evidence suggests low stratification at the depth of the 1% light level may not allow phytoplankton to optimize for the low-light, high-nutrient conditions at depth. Cross-frontal differences in nutrient and bio-optical parameters, particularly in August, suggest distinct phytoplankton assemblages, and the presence of calcite-forming or nitrogen fixing groups to the community structure, especially in very shallow waters across the front and in pycnocline waters seaward of the front.  相似文献   

12.
装备维修是生产制造、作业运转的基础,特别是在船舶、航空等领域。由于在维修过程中装备结构复杂、维修人员经验技术不足和缺少直观维修手段导致容易导致维修效率低下和操作出错。因此,通过研究基于增强现实的装备维修方案,直观交互地进行维修作业,能够有效地提升维修的质量和效率。由于装备体型较大,结构复杂,给跟踪定位带来了新的困难,针对实际的工程需求,创新性地将主流方法进行结合,提出了多Marker和ORB-SLAM混合跟踪的方法。通过二次调整多Marker定位结果的动态权值,提高局部定位维修的精度和可靠性。分析比较现有的特征点算法,选择ORB-SLAM作为方案,实现全局的定位和导航,对维修过程给以指导,并设计开发装备诱导维修系统,为大型复杂设备地维修提供了通用解决方案。  相似文献   

13.
闫伟  缑海健  陆苗 《水运工程》2019,(S1):12-15
港口系统设备一般外型尺寸和质量较大,多采用截面积较大的起重机钢轨作为行走轨道。根据港口系统设备使用特点和工程施工现场条件,结合码头和堆场结构,借鉴轻轨和重轨的无缝连接技术,对各种焊接工艺进行比较,分析钢轨的材料组成和焊接过程内部组织变化,推荐一种保证设备使用安全和操作人员舒适度、连接质量稳定、便于维护、操作简便、满足港口系统设备钢轨安装现场要求的连接方法和工艺,有助于实现工期目标,可推广应用于矿山、港口、电厂、码头及堆场等大质量机车或起重设备的钢轨连接。  相似文献   

14.
近年来防波堤越浪方面的相关研究,分别在越浪影响因素、越浪量计算公式推导论证、越浪数值模拟与越浪量标准4个方面进行归纳总结.已有成果表明:1)越浪影响因素的研究多是集中于常规因素,包括波高周期,堤顶高程,坡肩宽度,护面块体,而对水流、风速、波浪谱以及水的性质等其他因素研究相对较少;2)越浪量计算公式研究中主要集中在影响越...  相似文献   

15.
多因素数学模型在温州瓯江口浅滩围涂工程研究中的应用   总被引:1,自引:0,他引:1  
建立了波浪、潮流、盐度、悬沙、底床冲淤等多种因素数学模型,在模型验证的基础上,对瓯江口温州浅滩围涂工程海区的波浪场、潮流场、盐度场、悬沙场、底床冲淤场进行了数值模拟研究,对温州浅滩围涂工程对瓯江泄洪、瓯江南北口分流比、乐清湾养殖业、瓯江口港口航道及状元岙深水区、南口口外滩地的影响进行了分析论证。分析研究结果表明,温州浅滩围涂工程是可行的。  相似文献   

16.
A few cities in some of the larger developing countries in Latin America and Asia have made increasing use of multi-year concessions or franchises, competitively awarded to private companies, for construction and operation of urban transport infrastructure and for provision of public transport services. In view of the strong prospective growth of developing-country cities with large transport needs, and the rise in the emerging economies of potential new sources of private capital, it is important to see how effective PPP has so far been in this area. The experience is analyzed principally by thorough comparative review of what has actually happened for some of the main users to date: Bogotá, Santiago, São Paulo, Seoul, and several cities in both China and India. Despite delays and mistakes that have been made in development of most of the projects, the overall results, already delivered and in prospect, are very positive and urban public transport is benefiting substantially, with significant side effects on poorer people's access to work and to services, air pollution levels and road accident rates. The widest and most important advantage of the PPP arrangements, as compared with more conventional short-term contracting, is found to be the innovations, technical and managerial, developed, and, in particular, the mutual capacity building of the countries' private and public sectors and their more effective interaction. The experience in the six countries covered suggests that other developing-country cities may be best assisted to develop sound urban transport PPPs more rapidly through provision of help on chosen items among 7 elements that have proved particularly crucial but sometimes weak in the projects reviewed: Civic consultation systems, Land-use/Transport strategic planning, Land/property market management, Monitoring systems, Progressive policies, Economic regulation, and Public institutional framework for PPPs.  相似文献   

17.
采用现场调查的方法,统计分析广西沿海重力式码头病害,主要有裂缝、水工结构附属设施病害、结构破损、不均匀沉降与位移、漏砂、基床淘刷等,讨论病害与泊位吨级、运营时间的关系以及病害的成因与危害,提出病害防治措施。  相似文献   

18.
The effects of variability in environmental conditions on species composition in benthic ecosystems are well established, but relatively little is known about how environmental variability relates to ecosystem functioning. Benthic invertebrate assemblages are heavily involved in the maintenance of ecological processes and investigation of the biological characteristics (traits) expressed in these assemblages can provide information about some aspects of functioning. The aim of this study was to establish and explore relationships between environmental variability and biological traits expressed in megafauna assemblages in two UK regions. Patterns of trait composition were matched to environmental conditions and subsets of variables best describing these patterns determined. The nature of the relationships were subsequently examined at two separate scales, both between and within the regions studied. Over the whole area, some traits related to size, longevity, reproduction, mobility, flexibility, feeding method, sociability and living habit were negatively correlated with salinity, sea surface temperature, annual temperature range and the level of fishing effort, and positively associated with fish taxon richness and shell content of the substratum. Between the two regions, reductions in temperature range and shell content were associated with infrequent relative occurrences of short-lived, moderately mobile, flexible, solitary, opportunistic, permanent-burrow dwelling fauna and those exhibiting reproductive strategies based on benthic development. Relationships between some traits and environmental conditions diverged within the two regions, with increases in fishing effort and shell content of the substratum being associated with low frequencies of occurrence of moderately mobile and moderately to highly flexible fauna within one region, but high frequencies in the other. These changes in trait composition have implications for ecosystem processes, with, for example, reductions in permanent-burrow dwellers within one of the regions potentially compromising the ability of the assemblages to process and store chemicals and waste products. However, the connections between environmental conditions and trait composition are complex and incorporate many factors. Experimental investigations will be necessary to determine the extent and consequences of these important relationships.  相似文献   

19.
通航节制闸运行调度原则与常规的船闸工程和水闸工程明显不同,针对其口门宽度、门槛水深、闸门形式、平面布置等关键技术问题,船闸工程和水闸工程规范尚无具体的要求。以邓楼节制闸重建工程为例,对现有的节制闸运行调度原则进行调整以满足开通闸通航的要求,同时通过实施工程补偿措施以满足原节制闸防洪水倒漾、引水灌溉、保护水质的功能。通过理论计算和对比分析等方法得知建设2孔净宽23 m、门槛水深5. 5 m的通航节制闸能够满足船舶安全通航和航道通过能力的要求,并得出"升卧式平面闸门能够适应长期低水头运行、高通航保证率要求特点"的结论。其确定运行规则、建设规模、闸门形式、布置方案的方法对类似项目的建设及船闸标准规范的完善均有借鉴意义。  相似文献   

20.
郭涛 《水运工程》2018,(12):21-25
航道工程具有施工工期长、施工影响因素多等特点。在航道工程的设计、施工、维护的各个阶段,随着对精细化管理的需求日趋提高,传统的实施方法已不能满足工程的强度与精度要求。从航道工程和BIM的特性入手,探讨了BIM技术在航道工程设计、施工、维护等各阶段的应用。在保证设计合理性的前提下,可通过BIM模型完成设计意图的表达与传递,从而保证航道工程的施工质量,以及后续维护阶段航道整治建筑物安全、稳定地发挥其作用。  相似文献   

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