Analysis on the stability and structural strength for the 800 t floating dock while shipping the temporary ship-lock-gate;
800t浮船坞载运三峡临时船闸稳性和强度分析
Requirement for dangerous goods shipping were changed.
2004年1月1日,《港口法》、《港口危险货物管理规定》和《船舶载运危险货物安全监督管理规定》同时生效,调整了水上危险货物运输的管理,本文试就这些变化和对策做了一些探讨,供同行们参考。
Based on the principle of system engineering and the method of system dynamics,this paper divides the big highway overloading transportation system into three subsystems,such as overloading transportation,overloading management and economy.
论文运用系统工程原理和系统动力学方法,将复杂开放的公路货运超载运输大系统分成超载运输、超载治理与经济3个子系统分别进行描述和协调发展的系统动力学建模,构建超载治理子系统和经济子系统协调发展的总体因果关系图以及主要的正负反馈环,并以安徽省为对象运用STELLA软件构建了3个子系统的模型流程图,给出相关参数说明,进行了模型的仿真研究,完成安徽省未来30年治超投资比重的政策分析,得到最适宜的治超投资比重。
It is concluded that overloading transportation is the main problem to China s traffic safety at present and in the future.
道路交通事故是一种人为灾害,本文分析了决定道路交通事故的人、车、路等关联因素,指出超载运输是当前及今后威胁我国道路交通安全的主要问题,减轻交通事故灾害的关键是提高人的素质和依靠法制进行科学管理。
This article introduces a device for no-load running test of main components of drilling rig.
新设计的石油钻机主要运动部件空载运转测试装置采取空载试车形式,以电动机为动力源,通过液力变矩器、变速箱变速后带动被测的钻机部件,可以对ZJ15、ZJ20、ZJ30、ZJ40等型号钻机的主要运动部件(包括绞车、钻井泵、转盘、水龙头)进行空载运转测试,对噪声、振动、温度等数据进行采集及分析,具有结构紧凑、操作安全、变速范围大、数据分析简便可靠等特点。
The results show that inter-break after quenching,suddenly transited microstructure between hardened layer and the substrate and edge load running are the key reasons.
结果表明,淬火产生的内裂、齿轮淬硬层与基体组织突然过渡以及偏载运转是轮齿断裂的根本原因。
The electric energy loss and its prevention when three phase asynchronous electric motor is running with light load;
三相异步电动机轻载运行的电能损失及预防
The paper analyzes the benefit of heavy-load transportation capacity expansion of Daqin railway,considers that the benefit analysis should aim at economic benefit and social benefit and uses a practical example to prove that heavy-load transportation is an important way to get obvious benefits.
分析了大秦线铁路重载运输扩能效益,指出效益的分析应从经济和社会效益两方面着手,并用重载运输实例,分析证明了重载运输是取得明显效益的重要手段,以及巩固,拓展铁路大宗物资运输市场份额的重要方式。
so as to providing the base for heavy-load transportation plan on Daqin line.
结合大秦线铁路运营实践,较详细地分析了大秦线的运输数据,并对煤炭货源、市场因素、运输能力、基础设施等状况进行研究,从而为大秦线重载运输方案提供依据。
Experimental investigation on flexural performance of bridge members under overloading;
超载运营对服役桥梁受弯性能影响的试验研究
Railway heavy haul transportation is used to transport large amount fr.
重载运输用于运输大宗货物效率高,成本低,具有广阔的发展前景,成为许多国家铁路追求的现代化货物运输方式。
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