SMW工法在黄土地区深基坑支护中的创新应用

西安地区对于复杂环境下的深基坑工程支护结构通常采用止水帷幕结合排桩、土钉墙或桩锚支护等。论文以西安地区首个采用SMW工法桩为支护结构的基坑工程为依托,通过对该基坑支护结构设计、施工及工程效果进行分析与探讨,得出SMW工法桩在西安地区具有一定的适用性,与传统支护方式相比,具有较大的优势,值得进一步推广。     

杭州城东某深基坑工程支护设计分析

结合杭州城东某工程的地质条件,分析了该工程基坑支护的重点,介绍了土钉墙支护、SMW工法桩结合钢筋混凝土支撑、可回收式锚索支护的应用技术,并分析了各支护结构的适宜性,为类似工程提供参考。     

复合土钉支护在玄武湖隧道基坑中的应用

以自钻式土钉与SMW工法施工止水帷幕相结合的复合土钉支护技术的设计、施工方法，在南京市玄武湖隧道基坑支护工程中得到了成功应用。由于不需要预先成孔，该技术可以应用于土体成孔困难、自立性差的深基坑支护工程。     

预应力锚杆与SMW工法组合在某基坑支护中的应用

苏州万达广场工程采用钢绞线预应力锚杆代替内支撑,与SMW工法组合的基坑支护技术.该工程采用管井降水,基坑周边上部用土钉墙支护,下部除西侧紧邻地铁隧道预应力锚杆无施工空间,选择内部型钢斜撑外,其它三侧均为SMW工法+预应力锚杆支护.详细介绍了基坑降水及组合支护设计方案、主要技术措施,并对支护结构及周边建筑沉降和位移及基坑内地下水位进行观测.结果证明,该支护形式能保证基坑稳定性.     

SMW工法在强透水地层中的基坑支护应用

针对在基坑底没有连续水平向隔水层的强透水地层场地岩土条件,其基坑支护型式通过经济与技术最优结合方案分析,采用SMW工法加内支撑的支护型式进行基坑支护,很好的解决了该类型场地基坑支护难题,为以后类似工程积累经验。     

滨海深厚砂层SMW工法基坑设计

本文主要介绍地下室范围主要土层为砂层,且地下水位比较高的情况下的基坑支护设计。分别比较了降水方案和截水方案的优缺点。本工程透水砂层厚度达14m,截水方案针对砂层比较厚的情况采用三轴深层搅拌桩止水帷幕,截水深度18m,起到良好的截水效果。根据场地周边不同的场地条件合理采SMW工法支护及土钉结合深层搅拌桩复合支护达到经济又安全的效果。     

双排桩在相邻为施工场地的基坑支护中的应用

本文结合某实际基坑支护工程,针对该地区的地层情况,基坑西侧采用了放坡卸荷+双排SMW工法桩的支护形式;在场地条件受限制情况下,双排桩支护结构与其他支护结构相比,具有明显的合理性和优越性,对类似的场地条件的基坑支护工程有很好的借鉴和参考价值。     

SMW工法桩在卵石层及风化岩地层深大基坑工程中的实践

通过改进施工设备、调整施工参数和相关技术措施,成功将SMW工法桩运用于卵石层及风化岩地层深大基坑支护工程,积累了卵石层及风化岩地层SMW工法桩施工的经验,为卵石层及风化岩地层SMW工法桩运用推广及类似工程设计和施工提供参考。     

红岛滨海土岩组合深基坑SMW工法关键技术探讨

SMW工法具有施工工期短、抗渗性好、对环境影响较小，工字钢可回收等优点，青岛红岛区存在部分上部为深厚海相软土，下部为坚硬岩石的典型地层，SMW工法在该地层中尚无应用先例。以红岛滨海土岩组合地层中某深基坑工程为例，探讨SMW工法桩在软土地层中的施工关键技术应用，主要针对施工中出现的问题进行分析并提出具体的应对措施，保证了工程的整体施工质量，总结了SMW工法桩在红岛滨海软土地区的施工关键技术，为滨海土岩组合地质条件深基坑工程的解决和临海城市的建设发展做出贡献，为类似工程提供借鉴参考。     

扬州瘦西湖隧道SMW工法桩施工技术应用

结合扬州市瘦西湖隧道工程湖东明挖段基坑工程特点,介绍了在砂性土、老粘土地层中SMW工法桩围护结构的施工技术和实施效果,详细阐述了在砂性土、粘土复合地层中SMW工法桩施工的技术要点,可供类似工程借鉴。     

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.