玉顶小河排洪工程设计

以玉顶小河排洪工程设计为背景,从排洪河概况,工程的设计思路和原则,工程措施,包括排洪工程、水质改善、生态修复等角度主要探讨和分析了乡镇河道排洪工程的设计,以及与之相关的自然生态系统的保护等相关问题。     

中国古代城市排洪防灾解析与借鉴

近年来,由于极端天气的影响,我国许多省份暴雨成灾,洪水肆虐,城市被淹,汽车成了渡船,经济损失巨大,百姓生活颇受影响。城市排水管理问题成了社会关注的焦点之一,考验着政府的社会管理水平。其实,古人有很多与城市水患斗争的例子,我们有必要从古人那里汲取排洪防灾的有益经验。     

问题

“逢雨必涝”成为城市梦魇 透过诸如排洪能力不足、管网不配套、日常养护不及时等现象．不难发现,不少地方在城市发展中,重表面轻内在、重形象轻功能、重短期轻长效的问题普遍存在。与城市地面建筑的不断推陈出新相比．与城市地价、房价的不断提升幅度相比．     

浅谈使用“分节顶进法”整治铁路小孔径涵管病害的利与弊

该文通过分析因受地质、地形、排水及施工条件受限等形成的小孔L径涵管的病害成因,采取前期预制、现场明挖、分节顶进、防水处理、注浆等施工措施,在既有涵位置改建一孔径1米的矩形涵,以达到排洪要求,从而解决涵管孔径不足、边墙受损、管节开裂与错位等病害.     

试论如何加强重点工程档案管理的若干思考

在工程建设领域中,重点工程无论从建设规模、建设效果和建设必要性上面都比普通工程要高出一个档次。为了实现重点工程的有效管理,提高重点工程的建设实效性,做好重点工程的档案管理工作,不但是提升重点工程管理水平的重要措施,同时也是发挥重点工程作用的必要手段。为此,我们要明确重点工程档案管理的必要性,从重点工程档案管理实际出发,认真分析重点工程档案管理的作用,并了解到重点工程档案管理与档案信息化建设的紧密性,保证重点工程档案管理取得实效。     

提高工程竣工决算质量的几点建议

工程竣工决算是综合反映基本建设工程的建设时间、投资情况、工程概预算执行情况、建设成果和财务状况的总结性文件,是正确核定资产价值的重要依据。但是目前业务部门工程管理人员对竣工决算重视程度不高,认为工程竣工决算只是财务部门的一项工作;工程财务人员偏向于关注工程结算和付款,工程竣工决算报告编制较为简单,仅作为财务部门分摊资产价值的依据;工程各项费用结算严重滞后,影响工程竣工决算编制准确性;工程审计不及时,造成工程竣工决算不完整。对于如何提高工程竣工决算质量提出以下几点建议,不足之处请指正。     

试论建筑工程测量在建筑工程施工管理中的作用

建筑工程测量在现代建筑工程建设中占有重要地位,它始于工程准备阶段并贯穿于整个工程施工阶段。我们知道,工程的质量对一个工程来说极为重要。质量决定着建筑工程的命运,是工程发展的根本保证。而准确的测量不但影响一个工程能否顺利施工,还给施工质量提供重要的技术保证。工程测量工作的好坏直接影响到了工程施工的进度和工程施工的质量。现代化的工程建筑,对工程测量工作的要求更加苛刻。新技术的引入,正是工程测量不断发展、不断满足现代工程建筑建设需求的具体表现。     

重大工程复杂性与适应性组织——港珠澳大桥的案例

 重大工程通常由技术难度、系统关联性、未知因素存在巨大差异的异质性子工程组成,不同子工程往往采取不同的组织模式。传统权变理论认为,不同的外部环境需要采用不同的组织模式,组织的构建要适应外部环境的不确定性。但在重大工程中,子工程本身及其环境的复杂性均会产生不确定性,组织模式的选择和构建与子工程的复杂性具有重要的联系。因此,有必要从复杂性的视角解释重大工程的组织多样化现象。        在梳理重大工程复杂性及组织适应性研究的基础上,选择港珠澳大桥工程中的岛隧工程、钢结构工程、路面铺装工程、海事工程等子工程的组织管理实践作为研究对象,通过访谈、参与式专家和文档资料等方式获取相关数据,从复杂性视角对子工程进行分类,界定重大工程适应性组织概念,解析重大工程中不同子工程采取不同组织模式的适应性组织现象,总结构建适应性组织的路径。        基于重大工程复杂性的具体表现即工程技术方案与外部环境的关联性和认知不完备性,构建子工程复杂性评价指标体系,据此将子工程分为复杂性工程、创新性工程、关联性工程和简单工程4种类型;提出重大工程适应性组织概念;得出重大工程适应性组织构建的路径包括组织需求设计和匹配、工程主体创新和构建、组织系统形成和集成、组织职能实现和协同4个步骤。        研究旨在提出重大工程适应性组织概念,揭示重大工程组织模式选择和构建的机理及动态过程,说明重大工程组织模式与工程复杂性之间的关联性,指导其他重大工程组织管理模式的选择和构建。由于单案例研究的局限性,有必要在其他重大工程中对所提出的重大工程适应性组织概念及适应性组织构建过程进行进一步的完善和验证。     

工程变更索赔的简要分析探讨

工程变更和工程索赔对工程造价的巨大影响,决定了工程变更和工程索赔的管理成为工程项目管理中极其重要的一部分,被称为项目的第三次经营。因此,对工程变更和工程索赔进行分析研究,对项目的经营管理具有极大的指导意义。本文主要是结合笔者在工作中的实践经验,对工程变更产生的原因及工程索赔中应注意的关键点和措施方法进行简单的分析总结。在一定程度上讲,一个项目的工程变更越多,其改善项目的经营条件和实现项目的最终赢利的机会就越大,企业必须加强工程变更索赔的管理,来实现企业利润最大化。     

当前工程概预算工作普遍存在的问题管理对策

这几年来,随着社会的高速发展,各种工程的项目日渐增加,而人们对于工程的要求也不断提高,在这样的情况下,工程概预算对于整个工程的重要性也就愈发地凸现出来。可以说,工程的概预算从根本上决定着工程质量的好坏。本文从工程概预算的概念出发,分析了在工程概预算工作的管理当中所存在的工程概预算粗制滥造、管理程序混乱、相关工作人员素质不合格等等问题,并对这些问题提出了相对应的管理对策,以期能够通过管理工程概预算而提高工程的实施效率与完成质量。     

绿色物流网络系统建模与效率边界分析

绿色物流对于我国保护环境、节约资源和实施可持续发展战略具有重要的意义。绿色物流要求在进行物流网络系统设计时不能只考虑成本,还要考虑物流活动对于环境的影响。因此如何平衡物流成本和环境质量是一个关键问题。本文提出了绿色物流网络设计步骤和模型,将环境质量和物流成本作为优化的目标,利用多目标优化方法获得物流成本和环境质量之间的效率边界。通过分析效率边界的性质,指出了效率边界的作用。最后通过实例计算对影响效率边界的参数进行了分析,能为有效的实施绿色物流提供决策工具。     

A guideline for designing experimental studies in marketing research and a critical discussion of selected problem areas

Experiments are a well-suited method for empirically studying cause-and-effect relationships. This article provides a guideline for designing experiments. We develop an integrative framework that illustrates the key decisions in designing experimental studies. With this framework, we discuss important problem areas in the design of experiments (e.g., determining the experimental setting, choosing participants). Finally, for the different decisions and identified problem areas, we derive concrete recommendations for designing experimental studies in marketing research.     

PIECING TOGETHER SERVICE QUALITY: A FRAMEWORK FOR ROBUST SERVICE*

This paper addresses the issue of service design, specifically that of designing the service encounter for improved quality. We introduce a framework based on the three T's of task, treatment, and tangibles as a means of organizing the application of the diverse and growing body of service quality literature to encounter design. The framework is consistent with how successful service managers disaggregate the design problem. More importantly, we show that mutually supportive interrelationships between the three T's produce an opportunity for designing in a robustness to service failure. The framework is supported by case based evidence.     

复杂产品设计系统模块化模式对顾客动态需求的适应性研究

通过建立复杂产品设计系统的多A gent仿真模型,采用仿真方法分析了顾客需求的动态变化特征与模块化、半模块化和非模块化产品生产厂商的产品销量之间的关系,研究了复杂产品设计系统不同模块化模式对顾客动态需求的适应特征。     

销售商的努力影响需求变化的供应链的合约

本文首先重新考察报童模型,认识设计使供应链达到合作的合约的内在机制。在此基础上,提出一个设计供应链合约的一般模型,然后利用此模型分析在销售商的努力影响需求变化的情形下使供应链达到合作的合约的设计框架,同时提出一个在销售商的努力影响需求变化的情形下使供应链达到合作的合约。     

The design of computer based planning and modeling systems

Today there are nearly 2000 corporations in North America and Europe either using, developing, or experimenting with some form of corporate planning model. With the emergence of this new and rather substantial interest in the methodology of corporate planning modeling, there appears to be a definite need for a conceptual framework which can be used to design and implement computer based planning and modeling systems.In this paper the authors describe a collection of elements which they believe to be of critical importance in designing a corporate planning model. Their objective is to develop a set of criteria for not only designing a planning and modeling system, but a set of criteria which can also be used to facilitate the evaluation and comparison of alternative planning and modeling systems.There are over 50 planning and modeling software packages on the market today. These include systems such as BUDPLAN, COMOS and SIMPLAN. This paper attempts to provide the reader with a convenient checklist of possible features to consider in either designing one's own system or selecting an appropriate software package.     

The Effects of Employee-Led Process Design on Welder Set-Up Intervals

This study focused on improving manufacturing efficiency and production by designing new steps to the work process with an employee focus group. The set-up behaviors of two regular stock welders at a medium-size metal furniture manufacturer were observed via video recordings. The videos of the welders completing their tasks were reviewed in an employee focus group, during which it was determined that designing the welding process to include the use of walkie-talkies would successfully alter the contingencies surrounding set-up behaviors, thereby leading to a decrease in average set-up time. Results for the two welders combined showed a decrease in average set-up time of 2.27 min, with Welder A exhibiting a larger decrease overall and Welder B’s set-up time showing a greater reduction in variability.     

A bi-objective decision model and method for the integrated optimization of bus line planning and lane reservation

Journal of Combinatorial Optimization - The increasingly serious traffic congestion makes the bus system more and more inefficient. It is recognized all over the world that designing an attractive...     

Returning to the Frontier of Contingency Theory of Organizational and Institutional Designs

Much has been learned, and even more needs to be learned, about designing organizations and institutions. Since the 1960s this research has evolved from contingency to configuration, to complementarity, to complexity and creative theories of organizing. This chapter reviews these evolving theories (better called perspectives) and urges scholars to return to the frontier of organization studies by addressing an important new agenda in designing organizations with promising new research methods.     

A managerial assessment of the waiting-time performance for alternative service process designs

The paper develops an analytical model and, by applying it to a set of service process design alternatives, demonstrates the potential impact of process design on customer waiting-time performance. In doing so, it provides managers with some general tools and insights they can use in choosing the better service process design, adapting to changes in demand, and evaluating the impact of new technology application to the service process. It makes a case for flexibility in designing service processes by demonstrating that optimality of a design can depend on system parameter values. The various applications of this model and research findings can serve as guidelines for managers to use in designing their service processes so as to better serve their customers.