复杂地质条件下深基坑土体加固技术研究

深基坑土体加固对于提高深基坑土体稳定性具有重要作用,本文以上海市轨道交通17号线中国博览会北站施工标段为研究案例;重点阐述了三轴搅拌桩和高压旋喷桩在深基坑土体加固补强施工中的技术要点,希望为深基坑土体加固施工提供借鉴。     

水泥搅拌桩的施工质量与控制分析

在工程建设过程中,有很多软土地基进行处理,将水泥搅拌桩运用到软土地基的处理中,不仅能够巩固软土地基,还可以加强软基土体的强度并且还能够提升地基的承受力。文章对水泥搅拌桩的施工质量进行介绍,并阐述了水泥搅拌桩的施工控制方法,进而使得水泥搅拌桩的施工质量能够得到保障。     

水泥深层搅拌桩施工技术的几点思考

近几年,在处理淤泥、淤泥质土、粉土、粉质粘土等软弱地基时,经常采用深层搅拌桩进行复合地基加固处理。深层搅拌桩是一种加固软土地基的新方法,是用水泥及少量添加剂就地与地基土体充分混合而成的“水泥土桩”,其对施工工艺要求较高,掌握不好容易出现质量问题。由于深层搅拌桩成桩工艺的特殊性,其施工质量及处理效果受到人们的普遍关注。据此,主要论述了深层水泥搅拌桩的正确施工工艺,同时还阐述了相关的质量控制措施。     

水泥深层搅拌桩的施工控制

近几年,在处理淤泥、淤泥质土、粉土、粉质粘土等软弱地基时,经常采用深层搅拌桩进行复合地基加固处理。深层搅拌桩是一种加固软土地基的新方法,是用水泥及少量添加剂就地与地基土体充分混合而成的“水泥土桩”,其对施工工艺要求较高,掌握不好容易出现质量问题。现主要论述了深层水泥搅拌桩的正确施工工艺,同时还阐述了相关的质量控制措施。     

三轴深层搅拌桩止水帷幕技术应用浅析

三轴搅拌桩凭借一系列优点,适用于城市建设中的基坑工程,在实际应用中收获了良好的社会效益和经济效益。文章通过阐述三轴搅拌桩的内涵特征,依托南京下沉式广场工程实例,重点厘清施工工艺关键点及试桩参数,同时针对三轴深层搅拌桩止水帷幕施工过程常见问题提出解决对策,通过桩身质量检验和工程实例实施效果验证,提高该技术运用成熟度,为类似工程施工应用提供可借鉴的思路和方法。     

明挖隧道上跨地铁施工技术

介绍郑州市郑东新区综合交通枢纽区地下道路工程上跨既有地铁1号线盾构区间隧道的施工方案,为降低明挖隧道施工的减载效应对盾构隧道管片结构的影响,采用"三轴搅拌桩加固土体+抽条法施工"的综合施工技术,保证盾构隧道结构的稳定及地铁运营列车的安全。     

五轴水泥搅拌桩施工技术在城市地铁工程中的应用

水泥搅拌桩作为城市地铁中软土地基加固的施工工法,有着成本投入小、加固效果良好、施工工法成熟的特点,在软土地基加固施工中应用广泛。随着深层软土地基加固工程质量及深度要求的提高,传统的单轴、三轴搅拌机已突出其一定的局限性,五轴搅拌机在传统三轴搅拌设备的基础上进行优化升级,在深层搅拌桩施工中突显其优越性。     

三轴搅拌桩结合高压旋喷桩施工技术

本工程地质层在九个亚层的条件下,介绍陆域止水帷幕施工采用三轴搅拌桩结合高压旋喷桩施工工艺、机械设备配置、施工质量控制;通过试验检测止水效果情况,结合检测结果,分析总结在此类地质情况下,采用三轴搅拌桩结合高压旋喷桩施工止水帷幕影响质量的重要因素,为后期类似工程提供可行性经验.     

湖相沉积土层中等直径劲性复合桩的承载力计算与分析

本文采用目前五个具有代表性规范对湖相沉积土层中劲性复合桩桩身承载力进行计算复核与分析,得出了在采用与芯桩等直径原位注浆搅拌情况下,土体经注浆搅拌后对桩身承载力依然具有较大的影响的结论。给出了在特定工程条件下注浆搅拌对桩身承载力的贡献值。劲性复合桩侧阻力调整系数对桩身承载力有较大的影响,工程中需结合地区经验综合考虑,才能得出符合实际、安全的计算结果,为工程带来合理的经济环境效益。     

结合实践深入探讨某广场深基坑的施工技术

详细介绍了某广场周边环境复杂,施工中采用三轴搅拌桩止水,钻孔灌注桩和两道钢混凝土内支撑作围护结构,用二轴水泥土搅拌桩进行坑边、电梯井和集水井深坑加固。根据时空效应原理确定了合理的开挖流程。结合采用信息化施工技术,确保了工程顺利进行。     

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.