广东全球通大厦(新址)基坑支护施工

介绍广东全球通大厦较深基坑的喷锚支护.该工程3层地下室,基坑最大开挖深度达13.5m,基坑开挖边坡采用深层搅拌桩＋超前钢管桩＋喷锚支护＋预应力锚杆支护方式.基坑支护比较经济、利于土方开挖和结构施工,工期较短.     

SMW工法的应用与创新

据工程实例,说明了基坑与建筑物距离过小,施工作业空间狭窄的基坑支护,采用SMW工法或SMW工法的原理,将高压旋喷桩和型钢结合起来,形成挡土和防水的复合结构,能够确保紧靠建筑物的安全稳定。从基坑支护方案的选择,技术参数的确定,施工过程、施工中的注意事项几方面阐述了SMW工法的应用,证明旋喷桩内插入型钢进行基坑支护是一种创新,具有很好的推广价值。     

简析喷锚基坑支护技术在建筑地下室施工中的应用

随着建筑工程的不断增多,要想在过快的社会发展及日益严峻的市场经济中占据稳定地位,必须要采用更为有效的施工技术,提高施工质量,保证建筑工程质量符合设计要求。喷锚基坑支护技术是作为基坑的支护形式,具有经济性、适用性、可靠性等特点,施工方便,变形小,在工程施工中得到广泛应用。为了具体分析喷锚基坑支护技术的具体应用,本文结工程案例,分析喷锚基坑支护技术在建筑地下室施工中的应用效果,以此肯定喷锚基坑支护技术的可行性。     

喷锚支护在深基坑工程中的应用

喷锚支护一般用于开挖深度不大的基坑,介绍了广州某深基坑采用喷锚支护成功的实例,该工程3层地下室,基坑最大开挖深度达13.5m,基坑开挖边坡采用深层搅拌桩 超前钢管桩 喷锚支护 预应力锚杆支护方式。基坑支护比较经济、又利于土方开挖和结构施工,工期较短。     

建筑基坑工程水泥搅拌桩-锚杆复合支护施工技术分析探讨

本文根据笔者多年建筑施工实践,详细介绍了水泥搅拌桩及锚杆支护技术原理,并结合工程实例,洋细阐述了水泥搅拌桩-锚杆及喷锚复合支护技术在建筑基坑工程中的设计与施工技术,并对施工监测及效果进行了评价。     

喷锚支护在某基坑工程中的应用

结合工程实际,介绍了喷锚支护在某基坑支护工程中的设计和有关计算,并根据场地条件探讨了基坑降水及支护施工方法,以提高支护水平。     

复杂条件下某深基坑工程联合支护技术

某工程基坑周边环境及工程地质条件复杂,施工作业面狭窄,基坑支护设计、施工难度大.结合工程实际,采用了桩锚、复合土钉墙和放坡的联合支护方案.介绍了地下水控制技术、护坡桩成孔技术和基坑支护设计方案.基坑监测结果表明,基坑支护处于稳定状态,取得了良好的支护效果.     

喷锚支护在深基坑工程中的应用

深基坑的喷锚支护技术有着很好的发展前景,并已有很多成功的应用先例.以武汉市第四医院住院楼的深基坑支护工程实例,对基坑喷锚支护的设计计算以及施工进行了阐述,并就喷锚支护技术的使用提出了进一步的看法.     

某工程基坑边坡喷锚支护设计与施工

本文结合工程实例及工程地质条件,详细阐述了建筑基坑边坡喷锚支护结构设计、分析和计算,并对支护结构参数和截面设计及施工技术进行了详细探讨对其设计与施工效果进行了分析评价和总结。     

土钉墙在某深厚软土基坑支护工程中的应用

土钉墙在工程实践中已得到较多的应用,但在深厚软土中周围基坑支护结构并不多见,本文介绍了一个在深厚软土基坑支护工程中采用喷锚设计的工程实例,为今后此类工程的设计和施工提供参考.     

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.     

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。     

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。     

Experiences in radon-safe building in Finland

A study was made of radon-safe buildings in 300 Finnish low-rise residential buildings using data obtained from a questionnaire study. The study also aims at finding the main defects in design and implementation and how the guidance given on radon-safe buildings in slab-on-grade houses has been followed. According to the guidelines, the prevention of the flow of radon-bearing air from the soil into the house is recommended to be carried out through installation of aluminised bitumen felt and use of elastic sealants. Second, as a precaution perforated piping should be installed in the subsoil of the floor slab. The median indoor radon concentration in the houses was 155 Bq/m3. This is 32% lower than the median of the estimated reference values. The action level of 200 Bq/m3 was still exceeded in 40% of the houses. In most houses with slab-on-grade the prevention was based only on the installation of a sub-slab depressurisation system. Sealing was performed in a low number of houses. In 80% of houses with a sub-slab piping connected to an operating fan, radon concentration was below the action level of 200 Bq/m3. In houses with piping but no fan, the corresponding fraction was only 45%. Sub-slab piping without a fan had no remarkable effect on radon concentration. In houses with crawl-space and edge-thickened slabs, radon concentrations were low. The choice of foundation system thus significantly affects the indoor radon concentration. The importance of complete and careful sealing work should be stressed in advice and guides concerning radon prevention.     

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。     

2008年日本火灾情况

<正>1火灾总数在2008年(1～12月),日本发生的火灾总数为52 394起,与2007年相比减少了2 188起(4.0%)。这相当于平均1天大约发生143起火灾,每10min发生一起火灾。火灾类别(见表1)。     

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.