TSP203超前地质预报系统探测道含水地层的应用研究——以京福铁路池坑斜井为例

隧道水文和工程地质条件复杂多变,难以在地面勘察阶段探明影响隧道施工的不良地质体的具体位置、性质和规模。为保障隧道施工安全,对隧道掌子面前方岩体的地质情况和含水情况进行超前预报,具有重大理论意义和工程价值。本文结合实例,对TSP203成果进行对比分析,总结出隧道含水地层的判别规律,对类似地质条件的隧道超前预报工作具有一定指导意义。     

某隧道超前地质预报

文章介绍了某隧道TSP超前地质预报的原理及该隧道TSP超前地质预报的情况,确保了隧道施工的安全进行。论文的成果也可为相关的工程提供参考。     

某隧道超前地质预报

文章介绍了某隧道TSP超前地质预报的原理及该隧道TSP超前地质预报的情况,确保了隧道施工的安全进行。论文的成果也可为相关的工程提供参考。     

红棉隧道三台阶七步开挖施工数值模拟研究

文章基于隧道围岩工程地质条件的基础上，运用大型非线性有限元分析软件ADINA对红棉隧道三台阶七步开挖进行数值模拟。采用软件自带的单位生死功能动态模拟隧道的开挖支护。研究了开挖过程中应力及位移的变化规律，研究结果表明可以指导隧道施工。     

地质雷达在公路隧道超前地质预报的应用

地质雷达法是隧道超前地质预报的常用方法,能有效的探明隧道前方的地质情况,正确指导隧道施工,本文结合具体的工程案列,对探地雷达在公路隧道施工应用进行了分析研究.     

基于GPRMax 2D的探地雷达图像正演模拟

本文介绍使用利用基于时间域有限差分法(FDTD)模拟软件GprMax2D,分析了探地雷达地质图像的模拟过程,并举例模拟隧道中典型不良地质体的雷达图像结果与识别。     

地质雷达法在公路隧道超前地质预报中的应用——以元蔓高速南罕隧道右幅进口为例

在隧道开挖过程中,提前发现隧道前方的地质情况,为施工方提供准确的地质资料,对减少和预防工程事故的发生非常重要。通过采用地质雷达法对南罕隧道进行地质超前预报分析,结果表明:地质雷达法在超前预报隧道中不良地质因素是可行的,结果真实可靠,可为其它隧道施工超前地质预报提供参考与借鉴。     

隧道衬砌质量地质雷达检测正演模拟

地质雷达是一种快速、无损、高效的隧道衬砌质量检测方法,利用正演模拟软件对隧道衬砌厚度、是否存在脱空区以及钢筋网、钢拱架进行了地质雷达检测正演模拟,总结出了其地质雷达检测响应规律,为在实际工程中的应用提供了判别依据。     

TSP技术在矿山井巷掘进及采矿生产中的应用探讨

在目前的隧道超前地质预报技术中,TSP技术可说是首屈一指的。如今它已经被广泛运用于矿山井巷掘进及采矿生产,对探明隧道中的不良地质问题及防治施工中的地质灾害起到较为准确地预报作用,避免工程成本的增加及杜绝一些事故的发生。本文详述TSP技术的基本概念和工作原理,讨论它在矿山井巷掘进及采矿生产中的具体应用,并分析一些存在的问题及解决措施,希望对矿山井巷掘进施工安全起到指导作用。     

隧道突水突泥灾变特性数值模拟研究

突水突泥是对隧道施工及运营安全威胁最大的灾害之一。基于PFC颗粒流程序,建立隧道模型,有效模拟各类地质环境中的突水突泥灾害实效性与岩土体物理场变化,对隧道开挖过程、岩土体位移、速度场、颗粒接触力变化进行分析,揭示出现突水突泥灾害前与发生后,断层围岩的具体变化。通过对数据分析与研究发现,突水突泥前后围岩各物理场信息发生明显变化,可将变化信息作为灾害预警的评判手段,其研究方法及结果对类似工程研究具有一定的指导和借鉴意义。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

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.