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1.
砌体结构房屋墙体裂缝较为普遍,产生裂缝的原因主要是温差变形、地基沉降不均匀、地基土冻胀、墙体材料干缩等引起的。本文对裂缝产生的原因进行分析,并提出相应的预防措施。  相似文献   

2.
由于温度变化、地基不均匀沉降等因素的影响,常使墙体产生一些形状不规则、宽度不等的裂缝,这些裂缝不仅影响建筑外观造型和使用功能,而且会影响到结构的承载力.本文对砖混结构房屋墙体裂缝的现状进行了论述,介绍了温度应力和地基不均匀沉降引起砖混结构房屋墙体裂缝的原因,并针对这些原因提出了预防措施.  相似文献   

3.
多年的工程实践表明,只重视上部结构的整体加固,而忽视了地基基础的加固处理,所以往往因地基变形引起基础不均匀沉降,导致上部结构产生墙体裂缝,因此在对地基基础进行加固处理尤为必要。文章论述了如何进行房屋维修加固技术的选择及实施,并提出地基基础设计及加固方法(改变房屋承重体系法、基础加宽法、基础托换法)合理选择的前提是详尽掌握场地的地质条件和软弱土的性状。  相似文献   

4.
墙体裂缝的原因是多方面的,有地基、结构、施工、温度等方面的因素.因房屋基础的不均匀沉降造成墙体开裂占有一定的比例;因建筑物环境温差大构件收缩,不同构件的收缩量不同,不能协调变形而产生的墙体开裂是另一个重要原因.  相似文献   

5.
锚杆静压桩施工技术是近年来开发出来的一项新的地基加固技术,前期主要应用于老厂或用于建筑物改造工程中的地基加固,也应用于调整建筑物因不均匀沉降而产生的倾斜;近几年开始把这项技术应用到新建工程的地基加固处理上.本文就应用锚杆静压桩施工技术进行分析,探讨沉降、裂缝原因.  相似文献   

6.
进入21世纪以来,住宅建设取得了较好的业绩。但是当前地基不均匀沉降、墙体渗水、屋面渗水、管道漏水、下水道堵塞不畅等质量通病仍然存在。文章分析了某大楼地基产生不均匀沉降的原因,并提出采用静压注浆法加固处理措施对其进行加固。  相似文献   

7.
进入21世纪以来,住宅建设取得了较好的业绩。但是当前地基不均匀沉降、墙体渗水、屋面渗水、管道漏水、下水道堵塞不畅等质量通病仍然存在。文章分析了某大楼地基产生不均匀沉降的原因,并提出采用静压注浆法加固处理措施对其进行加固。  相似文献   

8.
砖混结构建筑墙体开裂原因及其防治   总被引:1,自引:0,他引:1  
李光 《民营科技》2010,(8):296-296
砖混结构墙体裂缝主要有地基不均匀沉降裂缝、温差裂缝及结构性裂缝三类。现对其形成原因及防治做简要分析。  相似文献   

9.
张桂玉  李有 《价值工程》2011,30(3):90-90
在多层砌体混合结构房屋中,砌体出现裂缝是常见的质量通病,引起裂缝的原因有地基不均匀沉降、温度应力、地震力、膨胀力、冻胀力、设计和构造处理不当和施工质量等等,本文就这些问题进行分析并提出解决方案的设计。  相似文献   

10.
《价值工程》2022,(15):129-131
建筑结构的稳定性是决定建筑质量安全的重要因素,部分建筑在设计、施工等多方面因素影响下出现地基不均匀沉降问题,不仅容易引发建筑结构裂缝问题,甚至可能导致建筑整体倾斜与倒塌,对内部人员的生命安全造成威胁。本文从建筑结构、地基两方面对地基不均匀沉降的原因进行了分析,结合实际工程对不均匀沉降问题的检测、鉴定要点进行了论述,提出了不同情况下不均匀沉降问题的解决措施,以期为相关单位人员提供参考。  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
杨明 《价值工程》2012,31(7):16-17
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。  相似文献   

19.
丛广英  乔炜君 《价值工程》2010,29(6):245-245
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。  相似文献   

20.
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.  相似文献   

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