水利工程防渗技术探讨

文章主要是对水利工程渗水形成的原因进行了分析探讨,并对其原因提出了相应的防渗措施。     

浅谈市政道路沥青面层的施工

现在国内进行的市政道路沥青面层施工往往不能够获得完美的效果,主要就是对市政道路沥青面层施工的相关工艺还不能进行有效把控,对其通病的原因和防治也缺乏深刻理解。本文首先对市政道路沥青面层施工的相关工艺进行了浅要的分析,并对其通病的原因及其防治措施进行了探讨。     

塔机回转支承系统故障分析及预防

通过塔机回转支承故障现象,结合工况分析其产生原因,通过回转支承工况分析,对其产生的原因进行了探讨,并提出了预防措施。     

汽轮机真空高的原因分析及防范措施

本文对EHNKS50/80/16冷凝式汽轮机开车以来真空高的几个原因进行了分析,以便操作人员了解汽轮机真空高的原因,对其进行防范措施。     

测井仪器的故障分析与排除思路

测井仪器在运行(使用)的过程中,必须要对其故障进行及时准确的分析,然后根据故障形成的原因进行排除。本文对测井仪器故障分析的内容进行分析,针对测井仪器中的常见故障分析其原因,然后对排除故障的方法及常见故障的排除措施进行探讨,提高测井仪器的工作效率。     

高校惩戒权与大学生受教育权的冲突与解决路径

随着教育的不断改革和进步,在高校的教育和管理过程中,其惩戒权发挥着重要作用。而受教育权作为大学生的法定权利和法定义务,任何人不得以非法定原因对其进行侵害。大学生在接受教育的过程中,其法律意识也在不断提高,在高校的教育中,大学生的受教育权与高校的惩戒权难免存在冲突的现象,为了使得高校的惩戒权与大学生的受教育权得以平衡共处,就需要对该种现象进行改善。本文首先对其高校的惩戒权和大学生的受教育权进行简单概述,再就其冲突的具体表现和原因进行分析,并针对其原因采取具体的解决措施。     

某船用柴油机橡胶支撑分析与优化

针对某柴油机橡胶弹性支撑在2 000 h试验过程中出现开裂的问题，进行原因分析。通过对弹性支撑仿真分析得出该橡胶支撑受力情况小于橡胶材料的拉伸扯断强度15 MPa，排除其运行条件不符合原因。通过对其生产过程进行分析，判断其开裂原因为硫化过程中脱模剂使用不当。对开裂橡胶支撑进行疲劳试验，验证其开裂原因确为制造过程问题，不仅解决了橡胶支撑开裂问题，也为后续此类问题的解决提供了思路。     

对房屋墙体结构裂缝的安全处理措施探讨

砌体墙体裂缝是一种常见的结构工程缺陷,其形成原因复杂,房屋墙体裂缝的结构安全与其原因是紧密相关的,本文从几类常见的砌体房屋墙体裂缝原因分别对其结构安全进行分析,并提出建议性处理措施与预防办法。     

邯长线涉县货物仓库地基沉陷分析与加固

结合具体的工程实践，分析了在人工填土上一建筑物的地基沉陷原因，从地质条件及施工方面对其原因进行探讨，指出用压力注浆对地基进行纠偏加固，其效果显著。     

浅析混凝土小砌块墙体裂缝成因及防治措施

本文根据混凝土小型砌块墙体裂缝产生的原因进行了深入分析,并从其原因入手,对多种不同情况下的砌体裂缝的防治措施进行了详细阐述。     

建筑工人不安全行为产生的认知原因和管理措施

建筑工人的不安全行为是造成安全事故的直接原因,且在建设现场非常普遍,迫切需要找到建筑工人不安全行为产生的原因,设计有效的管理措施以减少建筑工人的不安全行为。首先,界定两类直接导致事故的建筑工人不安全行为,分析两类不安全行为产生的认知过程,揭示不安全行为产生的认知机理。其次,以计划行为理论为理论基础,从态度、主观规范和行为控制感知三个维度,梳理"选择应对"环节失效的原因。再次,选取一个地铁工程项目,通过对建筑工人不安全行为的识别、观测和原因调研,对认知原因进行检验,结果证实:基于认知的建筑工人不安全行为原因分析思路是合理的;"选择应对"环节失效是导致建筑工人不安全行为的最主要原因。最后,针对"选择应对"环节失效的原因,提出不安全行为管理措施。     

Important causes of delay in public utility projects in Saudi Arabia

This study was conducted to determine the most important causes of delay in public utility projects, based on the frequency and severity of the causes. A survey of randomly selected samples of contractors, consultants, and owners was carried out to assess the frequency of occurrence and the severity of impact of sixty potential delay causes. A frequency index and a severity index were determined for each cause. An importance index for each cause was then computed as the product of the frequency and severity indices. The results showed that the three parties surveyed generally agree on the importance ranking of delay causes. The causes were grouped also into six major categories of delay. The analysis showed lack of agreement among the parties on the ranking of the major categories of delay.     

江苏省道路交通事故成因新思考及其对策

在人、车、路组成的道路系统中,“人”常被作为交通事故发生的最主要原因,而道路因素视为次要。通过江苏省交通事故原因统计和美国联邦公路管理局(FHWA)提出的事故成因总结,分析了道路状况对人的判断、操作的影响,并对江苏省交通事故成因重新进行了较科学的分析。最后,针对事故原因分析,提出了对道路设计要求、道路养护改造要求和修改相关法规等相应对策和建议。     

Delays in construction projects: The case of Jordan

The construction industry is a major player in the economy, generating both, employment and wealth. However many projects experience extensive delays and thereby exceed initial time and cost estimates. A host of causes of construction delays in residential projects were identified and classified according to Drewin’s Open Conversion System. The most common causes were evaluated by using both, the data collected in a survey conducted to residential projects consultant engineers, contractors, and owners, and interviews with senior professionals in the field. Most correspondents agreed that, financial difficulties faced by the contractor and too many change orders by the owner are the leading causes of construction delay. Severe weather conditions and changes in government regulations and laws ranked among the least important causes.     

Causes of falsework collapses during construction

Major collapses of falsework during construction processes were attributed to the triggering, enabling, and procedural causes. The effects of impact and vibration during concrete pouring have often triggered the failures. Several design and construction deficiencies which existed in the components of temporary structures enabled the failures. This study shows that several procedural causes initiated the triggering and enabling causes. The survey are tabulated to serve as a guide for performance control of falsework erection in the future.     

浅谈高速公路软土地基危害及处理方法

介绍了软土地基的形成原因,分类及性质,通过分析常见事故的发生原因,提出了一些常用的软基处理的原理和方法,从而为高速公路工程应用提供了处理方案。     

Stigma and social housing estates: Beyond pathological explanations

This paper aims to contribute to our understanding of the causes of stigma as it afflicts severely disadvantaged housing estates. It begins with a review of the literature on stigma and housing estates, identifying a lack of research and analysis of the causes of stigma specifically, yet a subtle adherence to pathological explanations. The remainder of the paper discusses evidence from a research project on stigmatised estates in the UK, identifying and counterpoising various perspectives on the causes of stigma. It concludes by offering an alternative framework for understanding the phenomenon of stigmatised estates which moves beyond pathological explanations to focus on the roles and contributions of external actors and influences.     

某工程混凝土柱裂缝原因分析

本文通过对某工程混凝土柱开裂,调查和取样检测,分析了引起混凝土柱开裂的直接原因,是冬季施工中掺加氯盐防冻剂引起的钢筋锈蚀破坏。     

Quantitative fault tree analysis for urban water infrastructure flooding

Flooding in urban areas can be caused by heavy rainfall, improper planning or component failures. Few studies have addressed quantitative contributions of different causes to urban flood probability. In this article, we apply probabilistic fault tree analysis for the first time to assess the probability of urban flooding as a result of a range of causes. We rank the causes according to their relative contributions. To quantify the occurrence of flood incidents for individual causes we use data from municipal call centres complemented with rainfall data and hydrodynamic model simulations. Results show that component failures and human errors contribute more to flood probability than sewer overloading by heavy rainfall. This applies not only to flooding in public areas but also to flooding in buildings. Fault tree analysis has proved useful in identifying relative contributions of failure mechanisms and providing quantitative data for risk management.     

Significant factors causing delay in the UAE construction industry

Construction delay is considered one of the most recurring problems in the construction industry. Delays have an adverse impact on project success in terms of time, cost, quality and safety. The effects of construction delays are not confined to the construction industry only, but influence the overall economy of a country like UAE, where construction plays a major role in its development and contributes 14% to the GDP. Thus, it is essential to define the most significant causes of delay in order to avoid or minimise their impact on construction projects. A detailed questionnaire was developed and used to get input from professionals associated with the UAE construction industry. The perspective of contractors and consultants has been analysed to rank the causes of delays based on their Relative Importance Index. Contractors and consultants were in agreement on the most significant causes of delays. The research revealed that 50% of the construction projects in UAE encounter delays and are not completed on time. The top 10 most significant causes of construction delays have been identified by this research. Approval of drawings, inadequate early planning and slowness of the owners' decision‐making process are the top causes of delay in the UAE construction industry.