非开挖管线探测技术方法的实践与思考

随着经济的发展,城市地下管线铺设密度加大,地下空间的利用率越来越高,电力、给排水、燃气、通讯管线彼此交错,为后期的监管与运行维护带来了巨大的挑战。本文主要探讨目前应用成熟的几类非开挖管线探测技术的优缺点,并结合工程实际应用一种结合北斗定位系统与控向仪的新型管线探测方法,让燃气管线成为数字城市和智慧城市建设的有机组成部分。     

地下管线探测中地质雷达的应用

目的:探究地下管线探测中地质雷达的应用。方法:对地下管线探测中地质雷达的应用技术进行简单的阐述,立足于当前地下管线探测现状(存在的问题),分析地质雷达应用的优越性,并且针对具体的地下管线探测工程的实施,对比性重点突出该技术应用前后所产生的应用价值(效果)。结果:地质雷达探测地下管线的效率及质量明显的优于传统探测技术,能够有效的降低安全隐患,保障地下管线探测工作的顺利、健康、可持续发展。结论:利用先进的地质雷达探测地下管线的实际情况,能够为地下管线的顺利铺设保驾护航。     

关于非金属管线探测方法研究

为了促进城市统一发展地下空间的规划建设,应该对城市地下管线进行科学规划并准确定位,考虑地下管线材质大多是非金属材质,而这种非金属管线的材质既不导磁又不导电,个别管道根本无法实现正常金属探测仪作业,因此文章就对其非金属管线分析了系统的探测研究方法,并结合几种经常使用的非金属管线进行逐一分析,简要提出几种探测原理及工作方法,分别阐述了每种技术方法对应检测的地下管道探测管线情况,在实践过程中不断改进探测器的优缺点,通过实践研究结合不同的地下管线匹配不同的非金属材质管线,从而不断提升非金属管道探测的科学管理应用方法。     

复杂条件下城市地下管线探测技术的应用

文章对地下管线的探测原理简要介绍,分别列举了地下管线探测过程常用的电磁探测、雷法探测、相邻管道探测3种技术,并以实际的城市地下管线探测项目为例,对技术的具体应用过程加以说明。     

城市复杂地下管线探测技术

城市复杂地下管线是每个城市的生命线,随着城市的发展,我们会面临越来越复杂的探测环境和越来越多的探测难题,因此,对城市复杂地下管线探测技术的研究是非常有必要的。在实际的探测过程中,应当综合分析现场的实际情况,确定出恰当的探测方法进行管线的探测。必要情况下,可以同时使用多种管线探测技术,来保证管线探测的精度。     

解读地下管线探测技术的发展趋势

随着经济的发展,目前我国的城市化已经达到了一个比较高的水平,城市的基础设施建设的规模与数量也逐渐增加,城市地下管网的数量也在不断地增加。而在城市建设的过程中,地线管线的探测工作十分的重要,其探测的数据是进行城市建设的重要支持,对于提升城市建设水平,避免在进行地下工程建设时出现事故具有重要的意义。但是目前的城市地下管网已经相当的复杂,这就给地下管线的探测普查工作带来了一定的困难,因此如何保证探测工作的准确性、真实性是目前地线管线探测工作应该首先考虑的问题,目前随着相关领域技术的发展,地线管线探测的技术也有了一定的发展,想要提高地线管线的探测水平,就需要对探测技术进行合理的运用,因此需要对目前的地下管线探测技术进行分析,并总结出其技术发展的趋势,能够有效促进地下管线探测水平的提升。     

RD8000管线探测仪在工程测量中的应用研究

地下管线探测技术进行应用研究有着重要的现实意义,本文用RD8000管线探测仪对燃气管和给水管进行探测,并进行精度分析;另研究管线探测仪三种探测方法深度内外符合精度。     

青海省地下管线探测工作方法探讨

随着城市化进程的不断推进,城市功能的调整和城市建设发展迅速,新建、改建、扩建项目不断增加,作为城市基础设施重要组成部分的生命线管网系统越来越复杂。本文基于地下管线探测仪,对不同材质管线探测方法和精度指标进行研究,以地理信息软件为平台,建立了某小区的地上和地下管线三维可视化系统,为青海省城市地下管线探测技术的发展进行了有益的探索,为城市生命线管网风险分析提供科学依据。     

城市地下管线作业方法的探讨

地下管线是现代城市的基础建设工程,调查发现城市地下管线作业面临的最大问题是如何准确的地定地下管线的位置,因此,本文首先介绍了地下管线探测技术,然后对其进行了详细的探讨,希望能够促进我国城市地下管线作业的顺利实施。     

城市地下管线探测精度控制

本文结合具体项目实践,探讨了城市地下管线探测过程中如何更好地保证成果质量,阐述了作者对城市地下管线探测精度控制的一些见解。     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

The Creation of the Office for National Statistics

A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.     

What helps? Women engineers' accounts of staying on

We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.     

论现代物流企业的发展观

物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。     

浅谈大体积混凝土裂缝的控制

大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。     

Supply Chain Strategies in the UK Fashion Industry—The Rhetoric of Partnership and Realities of Power

This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.