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safety degree     
相关语句
  安全度
     The safety comprehensive assessment model was given using the conception of safety degree: S(k) = S(k-l) + B(k), B(k)= a C- P H, in which a and P are constant, C can be got according to the state of safety management.
     同时以安全度的概念来衡量系统安全水平,得出了系统的综合安全评价模型:S(k)=S(k-1)+B(k)、B(k)=αC-βH。
短句来源
     Safety Degree of the Ventilation System in Mine
     矿井(煤矿)通风系统安全度
短句来源
     Study on Safety Degree and Durability Problem of Urban Bridge Structure
     城市桥梁结构安全度和耐久性问题的研究
短句来源
     Design Safety Degree and Construction Safety Management of Fastener-style Scaffolding
     扣件架的设计安全度和施工安全管理
短句来源
     Considerations about the Design of the Safety Degree for the High-rise Civil Buildings
     高层民用建筑结构设计安全度的思考
短句来源
更多       
  安全程度
     Results There were remarkable differences in attitude toward the safety degree of the work( χ 2=5.444, P <0.05),and accidents happening( χ 2=4.552, P <0.05) between case group and control group.
     结果 伤害组和对照组在对从事工作安全程度和对事故发生的看法的差异有显著性 (χ2 值分别为 5 .4 4 4、4 .5 5 2 ,P <0 .0 5 ) ;
短句来源
     Probabilistic Safety Assessment (PSA) is an analytical method used in the safety degree measurement which is present in the way of probability.
     概率安全评价(Probabilistic Safety Assessment,PSA)是一种以概率的方式度量安全程度的分析方法。
短句来源
     Evaluation of safety degree and calamities-resistant capability of mining shaft in shendong corporation
     神东矿区开采矿井的安全程度及抗灾能力评价
短句来源
     As a result of many advantages of relational database, such as, mature technologies, extensive applications, great managing data capabilities, high data safety degree, and so on, XML data query can utilize mature relational database technologies to realize.
     由于关系数据库有着技术成熟、应用广泛、数据管理能力强、数据安全程度高等优点,XML数据的查询可以利用关系数据库的已成熟的相关技术来实现和完成。
短句来源
     The strength and structure of filled body, access compact rate or admission rate affected and decided directly the mining safety degree and filling cost of access back-filling method. In this paper, it is discussed that how to determine the filled body strength and structure of access back-filling method, and how to improve filling technology to raise the access compact rate or admission rate.
     进路充填采矿法,充填体的强度及其结构、进路充填接顶率或进路充填充满率直接影响和决定采矿安全程度和充填成本高低,本文对进路充填采矿法如何确定充填体的强度及其结构,如何改进充填工艺技术提高进路充填接顶率或进路充填充满率进行了探讨。
短句来源
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  安全等级
     Study on safety degree for existing RC structural elements based on calculated reliability
     基于计算可靠度的现有RC结构构件的安全等级划分研究
短句来源
     It briefly describes the building lasting year limitation,the Building Structure safety degree and important coefficient in the design criterion of building structure,and the problems happened in structure design. It also gives some suggestions.
     简单描述了建筑结构设计规范中有关建筑耐久年限、建筑结构安全等级与重要性系数以及结构设计中存在的问题,并提出一些修改的建议。
短句来源
     Combing the regulations concerned with the Periodic Inspection Rules of Pressure Vessels and existing problems in practice, some problems were analyzed of the inspection, audit and examination of original technical data, partition of safety degree, the notification of inspection opinion of pressure vessels in service before inspection of the periodic inspection rules of pressure vessels, and some suggestions were proposed.
     结合压力容器定期检验规则的有关规定及在实际工作中所遇到的问题 ,就《压力容器定期检验规则》在安全管理的检验、原始技术资料审查和检验、安全等级划分、在用压力容器检验意见通知书和检验前的准备工作等方面的问题进行了分析并提出了建议
短句来源
     Safety assessment on tailing pond should be based on safety conditions of dam and its affiliated construction, safety grade, safety degree and the comprehensive assessment on safety production of tailing pond.
     尾矿库安全评价应该搞清坝及其附属构筑物的安全状况,评定尾矿库的安全等级,进行危害程度分类,对尾矿库安全生产状况做出综合评价。
短句来源
     This paper probes into the following points including design service life,durability design,structure safety degree,design status,and design expressions,etc. stipulated in the "Uniform Standard for Port Structures′ Reliability Design(GB 50158-92)" which is under modification.
     针对正在修订的《港口工程结构可靠度设计统一标准》(GB50158-92)中设计使用年限、耐久性设计、结构安全等级、设计状况、设计表达式等进行探讨。
短句来源
更多       
  安全裕度
     Eventually,we can determine the safe work space according to the permissible safety degree of the support action.
     最终在支撑作用力允许的安全裕度下,确定车载起重机吊臂的安全工作范围。
短句来源

 

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      safety degree
    Post production quality control comprises sterility, potency (viability of immunizing organisms), safety (degree of attenuation) and efficacy (capacity to protect against virulent parasite stock).
          
    According to the present distribution of the fault safety degree, the authors predict the seismic risk zones there.
          
    The results show that the moderate or strong earthquake happened only at the sections of the faults whose fault safety degree is zero.
          
    Table 3 shows the comparison of the two ways in terms of the safety degree and the cost.
          
    From the above, we get a two-objective optimization model which aims at getting the minimum of the capital cost and the maximum of the safety degree.
          


    Based on the previous report on the field test of a highway continuous beam bridge, this paper presents the analysis of the earthquake response of the bridge.In this paper, simplified mechanical models of the bridge are proposed on the basis of the theoretical analysis of the field test results. The earthquake responses of the bridge are computed-from the typical response-spectrum and the earthquake acceleration waves inputted by using analysis programs DR (Dynamic Response Analysis Programs for Plane Member...

    Based on the previous report on the field test of a highway continuous beam bridge, this paper presents the analysis of the earthquake response of the bridge.In this paper, simplified mechanical models of the bridge are proposed on the basis of the theoretical analysis of the field test results. The earthquake responses of the bridge are computed-from the typical response-spectrum and the earthquake acceleration waves inputted by using analysis programs DR (Dynamic Response Analysis Programs for Plane Member Structure). Finally, The safety degree and the measures of earthquake resistance are discussed through the comparison between the results gained from the strength checking computations of the dangerous sections of the piles of two different models.

    本文是在“滦河大桥抗震分析”之一的基础上,进一步对该桥的抗震反应计算分析进行研讨。通过对现场测试结果的理论分析,提出桥梁的力学计算模型,利用“平面杆系动力反应分析程序”,按标准反应谱和输入地震波形,计算全桥的地震反应。并通过对两种计算模型基桩危险截面强度验算结果的对比,讨论了本桥的设计安全度及有关抗震设计的设施。

    A two dimensional non-linear finite element scheme was used in the study of stress field on a deep section of a typical graben system. The parameters of the specific section is determined according to the data given in ref,The programme employed is a transplantation of the programme employed by Wang Ren. The faults are represented by laminar material, transversely isotropic elasto-plas-tic material. The change in the degree of safety caused by the upwarping of mantle is estimated (See Figs 2 and 3).The concept...

    A two dimensional non-linear finite element scheme was used in the study of stress field on a deep section of a typical graben system. The parameters of the specific section is determined according to the data given in ref,The programme employed is a transplantation of the programme employed by Wang Ren. The faults are represented by laminar material, transversely isotropic elasto-plas-tic material. The change in the degree of safety caused by the upwarping of mantle is estimated (See Figs 2 and 3).The concept of degree of safety has been employed in R. Wang' s paper. This is a non-dimensional quantity, characterizing the degree of safety of a material under Coulomb shear criterion. The calculation equation is as follows:For the fractured zone, σn and τ are the normal stress (trensile as positive) and shear stress on the fault plane, respectively.μ is the coefficient of friction. For the elastic area outside the fault, the value of degree of safety α is calculated along the direction which forms an angle of intersection of 0.5Arctg (1/μ) with the maximum principal compression stress. It is easy to see thatwhen α≤0, shear fracture occurs in the material;when 0<α≤1, the larger α (nearer to 1), the higher safety of material;when 1<α, then σn>0, this plane is under tensile stressThe upper surface is a free boundary. The two sides are under compressive stresses which increase linearly with depth. For the base boundary two cases are computed: the displacement in the vertical direction is zero or non-zero. The upwarping mantle can be described by non-zero displacement in the vertical direction of base boundary. By comparing two results calculated, the danger of fracture caused by the upwarping of mantle is obtained. Let f and f1 be the lithostatic pressure and compressive stress acting on two sides of the boundary, respectively. The Fig. 3 and 2 are the diagrams of the change of safety degree caused by upwarping of mantle when f1 = f and f1 = f/2, respectively. The safety degree increases in the dotted areas. The results of computation coincide with the following characteristics of seismicity in graben system: a) the graben system is an area of intense seismicity, but much intensive is its inner part as compared with the outer part; b) with only individual exception, the foci of strong shocks are shallow.

    本文用二维非线性有限元方法,计算了一个地堑剖面因地幔上涌引起的破裂危险。在两侧边界挤压应力小于岩石静压力条件下,破裂危险增长区主要集中于地堑内部及地堑断层附近。

    This paper proposed conceptions and computations about the constraint to characteristic stress and the sefety degree objective used in optimum design of engineering structures. With the constraint to characteristic stress of structures, a vast amount of stress constraints of members can be replaced by one constraint conveniently. In designing structures, many engineers prefer that they are heavier, but must be safer. This intention can be satisfied with the safety degree objective. Related examples are...

    This paper proposed conceptions and computations about the constraint to characteristic stress and the sefety degree objective used in optimum design of engineering structures. With the constraint to characteristic stress of structures, a vast amount of stress constraints of members can be replaced by one constraint conveniently. In designing structures, many engineers prefer that they are heavier, but must be safer. This intention can be satisfied with the safety degree objective. Related examples are given in this paper.

    本文给出了可用于实际工程结构优化设计的特征应力约束和相应的安全度目标及有关算例.采用本特征应力约束可成功地用一个约束代替数量很大的各构件强度与稳定性约束,给优化计算带来很大方便.相应的安全度目标可解决一般工程技术人员希望自己设计的结构宁愿较重也要安全不易破坏的心理要求,使结构优化更能适应工程实际.

     
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