TRD工法在深基坑支护工程中的应用

上海海门路55#地块系深大基坑项目,且紧邻运营中的轨交站点,故基坑围护结构与主体地下室结构外墙两墙合一,基坑安全等级要求高.经对相关工法进行对比分析后,决定外圈地下连续墙采用TRD工法加固,通过试验段施工并综合各项监测数据,该工法为地下结构的开挖与施工创造了良好条件,也为类似工程积累了经验.     

变压器专用密封材料的研制

油浸式变压器密封材料性能优化是解决变压器漏油故障的重要途径。分析了变压器密封材料老化原因,提出了变压器密封材料应具有的性能要求,并以此为目标研发了变压器专用的密封材料软木橡胶。详细叙述了软木橡胶的特性,通过试验表明,软木橡胶是一种性价比高的优良新型变压器专用密封圈材料,用这种新型材料制成的变压器密封圈已获得了国家专利。该材料还可用于其他电气设备。     

铜铝加工项目建设的思考

在对20年来铜铝加工项目的筹划和实施进行回顾的基础上，简要地进行了总结。谨供现在和未来铜铝加工项目的决策者和参与者参考。     

WebTracer: A new web usability evaluation environment using gazing point information

WebTracer is a new usability evaluation environment that supports recording, replaying, and analysis of a gazing point and operation while a user is browsing a website. WebTracer can record a user’s gazing point and operation compactly.Results of an experimental evaluation showed that the size of the operation history recorded by WebTracer was from 1/10 to 1/20 of the size of data recorded by an MPEG-2 or MPEG-4 format. With its compact form, the results of usability testing with the gazing point can be efficiently shared. It is expected to easily share empirical data between researchers. Also, evaluators can easily send the testing results as a feedback to the developers over the Internet.Moreover, the results show a possibility that gazing points related to usability. For example, when the menu of a Web page is divided into two panes, gazing points move more quickly. It seems that WebTracer efficiently improves usability evaluation, with gazing point data helping to identify problems on Web pages.     

地铁移动通信无线网络建设研究

主要总结上海地铁无线网络覆盖设计上的技术要点、解决方案。在地铁特殊场景下。对各运营商如何对现有系统进行3G改造，新建系统如何规划设计等方面进行了分析、研究。     

仪表防腐隔离膜片在化工生产装置中的应用

介绍仪表防腐隔离膜片的产生背景、构成、性能、使用方法和效果,并与耐腐蚀金属材料进行比较。     

静电喷涂防锈油的研制及应用效果

为了满足实用需求,从静电喷涂工艺对防锈油的要求出发,通过评价,筛选了合适的基础油、防锈剂、雾化性能改进剂,研制出了静电喷涂防锈油,其雾化性能好,涂油均匀,防锈效果优异,清净性好易于除去,可满足现代钢铁冷轧企业工业应用要求.     

EAFD-loaded vitreous and glass–ceramic materials

SiO₂, Na₂O and CaO were mixed and co-melted with electric arc furnace dust waste. The resulting vitreous materials, produced by quenching at ambient atmosphere, were transformed into glass–ceramics by two-stage heat treatment, under thermal conditions that were determined by differential thermal analysis. X-ray diffraction, scanning electron microscopy, energy dispersive spectrometry and transmission electron microscopy were employed to investigate the physical properties of all products. It was found that whilst wollastonite (CaSiO₃) separates from the parent matrix as the dominant crystalline phase in all glass–ceramic products, the crystallization mode depends on the batch composition. Leaching tests evidenced that vitreous products were chemically durable. Devitrification did not significantly affect leach resistance so glass–ceramic materials retain the leach resistance that was achieved by vitrification.     

防护与作业一体化升降平台在装配式混凝土结构建造中的应用

基于防护与作业一体化升降平台在装配式建筑工程中的实际应用案例,介绍了该升降平台的功能特点和结构组成,详细描述了其在装配式混凝土结构建造全过程中的安装、应用与拆除流程。结合实际工程特点和难点,阐述了防护与作业一体化升降平台的同步提升、自动调平、偏载控制、支撑精度调节以及安全配置等关键技术方法。工程实践表明,防护与作业一体化升降平台满足装配式混凝土建筑高效、高质量建造的要求,具有广阔的市场前景。