山区新建公路岩体生态绿化工程探讨

随着国家扩大内需、拉动国民经济工作的展开,国家对公路交通的投资力度越来越大,建设速度也越来越快。但公路新建也会在一定程度上造成局部自然生态环境的改变和破坏,特别是在修建山区公路时,劈山开路使得山体岩石裸露,林地遭到破坏,水土流失现象越来越严重。为了防止这种水土流失,公路修建后应尽快恢复土地原貌,创造新型绿化景观。通过对新建高速公路山体生态绿化恢复工程实践和经验的总结,对绿化施工工作进行了很好地探索,以期对今后的类似绿化恢复工程提供借鉴。     

山区公路挡土墙设计

山区公路的迅速发展,挡土墙在山区公路中得到广泛运用。主要介绍库仑土压力法进行挡土墙的设计,并且结合案例验算挡土墙的稳定性、倾覆性,并根据多年工作经验提出存在的问题和解决方案,为挡土墙的设计提供更多的理论基础和经验。     

浅析油松在北京山区绿化中的应用

绿化是城市现代化建设的基础工作,也是改善生态环境和提高广大人民群众生活质量的公益事业。北京山区绿化已基本覆盖裸露地表。常绿乔木油松作为山区公路绿化主导树种得到了广泛的应用。通过对北京市自然环境的介绍,阐述了油松在山区的自然分布、绿化种植形式、苗木成活情况以及景观效果等,并对油松的应用提出了合理化建议。     

山区公路挡土墙设计探讨

挡土墙是山区公路广泛运用的一种构造物。论文通过工程实例,分析了山区挡土墙设计的重点问题,总结了山区挡土墙设计的特点及需要注意的事项。     

永久性岩钉支护结构在某边坡工程中的应用

镇江高等专科学校理工座东侧为山体,山体顶至山体底高差3.3～13.7 m,山体表面松散的岩石及整体是否稳定直接影响学校师生安全。另外,山体治理方式直接影响山体与校园绿化的整体和谐性。通过分析对比,设计人员放弃了采用承重型垂直挡土墙的设计思路,并大胆尝试永久性岩钉支护结构,通过削方、加固、培土、绿化等措施,有效满足了学校师生安全及校园内绿化美观要求。     

运用经营城市理念 促进山区城镇发展

通过运用经营城市理念，介绍了经营城市的内涵，指出山区城镇经营的重点为经营城镇的环境资本和资源资本，并对其进行了阐述，从而增强山区的综合竞争力，提高经营城镇的效率和水平，最终实现经营城市与城镇发展良性互动的发展模式。     

山区公路挡土墙设计研究

以某山区公路挡土墙设计为例,分析山区公路挡土墙设计中的重点问题,采用挡土墙设计程序及套用现有挡土墙设计图对比分析,提出合理可行的建议与措施.     

反拱挡土墙在山区建筑中的应用

传统的重力式挡土墙,所耗建材量大,费用较多。特别在山区多层民用建筑中,一般要占建筑总造价10～15％,高者甚至超过20％。近来,国内涌现出多种新型的挡土墙,既有便于机械化施工的锚杆挡土墙、折板挡土墙、朽栓挡土墙;也有利用物件和填土自重维持整体稳定的双肢柱拱扳挡土墙、加筋土挡土墙等等。但是,由于技术经济条件的限制,上述挡土墙尚难以推广。     

山区高速公路挡墙的选用

由于山区的地形条件和地质情况复杂,山区高速公路建设增设挡土墙对于减少施工占地,稳定路基土坡,减少填挖土方量,满足道路使用要求都起到了非常重要的作用.以京承高速公路北京段(苇子峪-市界段)工程为例,阐述了在复杂的地形地质条件下,如何进行挡土墙类型的选择和优化设计.     

山区公路选线方法分析

本文通过查阅相关资料,结合山区公路的特点,对山区公路选线的技术设计中山区公路线形设计、山区公路选线的相关技术进行了分析,并提出了合理选择路线技术指标、合理设置挡土墙等山区公路选线的注意事项,以保证西北山区公路选线的合理性,在一定程度上能够避免其他因素的干扰,促进山区公路的建设与发展。     

浅析高速公路工程招投标中的最低评标价法

结合目前高速公路施工项目招投标活动的实际情况,阐述了最低评标价法的概念,归纳了其优点及存在问题,对完善最低评标价法提出几点策略,以期促进招标投标市场更加规范有序。     

Place-Making in Megaprojects in Melbourne

This article analyses state-led place-making practices in Melbourne. The two levels of government that influence planning in Melbourne make much of the city as ‘culturally vibrant’ and ‘creative’, and have incorporated creative city-inspired place-making principles into many layers of the planning system. An examination of the development of two mixed-use megaprojects in central Melbourne reveals however that ideals of culturally engaging public places, and indeed of creative landscapes for middle-class consumption, wither in the face of more basic imperatives for economic development. In these case studies the ‘creative city’, no matter how the idea is interpreted, has little traction either as a set of inclusive place-making principles or as a gentrification strategy. The article concludes that the creative city-inspired place-making objectives in the planning system at both state and local levels are ambiguous in their overall intents and completely unsupported by statutory controls. Such place-making objectives as are realised are the compromised results of the interplay of uncoordinated decisions, delivered at the pleasure of the developer.     

Pathogens in septage in Vietnam

Septage is widely acknowledged as a major source of infectious pathogens while disposal of septage, and the operation and maintenance of septic tanks, is not regulated in many developing countries. Twenty untreated septage and septage sludge samples were taken from Can Tho City, Vietnam to examine their pathogen content, and indicator micro-organisms. Escherichia coli and Enterococcus spp. were detected in all samples, regardless of sludge storage time. Phages were detected in 80% of samples. Salmonella spp. were detected in 70% of the untreated septage and 60% of septage sludge samples. Concentrations of phages and bacteria tested in septage sludge after many years of tank storage were much higher than the expected levels. Helminth ova were present in 95% of untreated septage samples with an average of 450 ova l^− 1, and were detected in all septage sludge samples with an average of 16,000 ova l^− 1. Twelve varieties of helminth ova were identified. More helminth ova varieties in higher concentrations were found in septage than those reported from stool samples. The varieties' frequency ranged from 10% to 50% and Ascaris lumbricoides predominated. Results show that pathogens and indicator micro-organisms, especially helminth ova, accumulate in sludge. Thus helminth ova should be considered when septage sludge is treated and used for agriculture. Proper health protection measures must be applied for people handling septage.     

在市场中实践在实践中学习在学习中进步--工程公司市场化进程的回顾与展望

近两年来，工程公司在提高市场竞争意识、推动市场化进程中做了大量工作，其中坚持走出去的方针是我们自我加压、推行加快市场化步伐的一个重要战略步骤。     

新时期广东城市化的新特点

新时期广东城市化出现以下特点:知识源导向、城市由单体向群体化发展、产业集群推动、政府主导自上而下的集约化发展、城镇化向城市化转变、由重“数量”发展向重“质量”发展的转变。     

新形势下高校强化基建财务管理的探讨

在市场条件下高校基建财务人员在加强日常财务管理的同时,必须树立起高度的工作责任心,抓好事前监督、事中监督、事后监督三个环节,全面理解、贯彻执行《高等学校财务制度》,管好用好各项基本建设资金,提高基建财务管理水平,更好地完成高校各项基建任务,以有限的投资,最快的建设速度,获得最大的投资效益。     

2005年北京办公物业市场七大趋势

趋势一:CBD区域写字楼集中放量从各区域规划方案上看,CBD区域多数项目在03～04年处于项目的报批手续及拆阶段,预计2005年正式推向市场,因此2005年CBD区域将成为北京市场供应集中的域,区域即将供应的项目有北京财富中心(二期)、金地国际花园、万达广场、SOHO尚都、万通中心、世纪财富中心、怡禾国际中心、光华国际等。除去未知项目,2005CBD写字楼办公面积的供应量为60万平方米左右。中关村区域经过一段时间的集中供后开始逐步放缓,2005年供应的体量相对较大的项目有中关村金融中心、新中关。金街区域可能开盘的项目只有2个:英蓝国际中…     

浅谈我国工程项目建设成本控制存在的问题

结合目前我国施工企业工程项目成本管理现状,对工程项目成本管理过程中存在的问题进行了较详细的分析,并提出了一些解决问题的办法,以做好项目成本控制工作,进而增强企业经济实力。     

Variation in property taxation in Tulsa

Conclusions It may be reasonably concluded from this study that the range of variation in these ratios of assessed to actual value are of a reasonable size for the great majority of cases. The frequency distribution of these sample ratios was not normal, however, as was assumed a process of this type would produce. On the other hand, the failure of the regression analysis to identify any significant variables which would explain these variations would tend to re-enforce the assumption that the fluctuations were indeed of a random nature.To sum it up in one paragraph, aside from a few extreme cases, the assessing process appears to give estimates which are more consistent than would be expected under the assumption that any errors would be of a random nature, but the regression analysis was unable to isolate any particular socioeconomic characteristics which would explain the variation which was present.Financial support for this research project was furnished by the University of Tulsa.