章渡老街的启示

详细介绍并论证了章渡老街在选址、规划和单体设计上的特色.它的许多建设经验,值得现在借鉴和学习.其吊脚楼民居是安徽绝无仅有的,应尽早加以保护.     

Shrimps and whitebait in the polluted Thames estuary

This paper records the seasonal incidence of shrimps, sprats and herrings, the most abundant nektonic species, off West Thurrock in the Thames estuary during 1967–70. It also deals with their age classes and their diet. The object of monitoring the shrimp fish fauna is to establish a quantitative base line against which the effects of future developments for the river, such as the erection of a barrier, can ultimately be measured. It can also serve as an index to the effects of the strike of public employees of sewage plants on the state of the river, and monitoring for this purpose continues and will be reported later.     

窄缝通道内支撑柱对传热性能的影响

将计算流体动力学方法应用于窄缝通道内支撑柱对传热性能的影响分析。用CFX程序数值模拟有和无支撑柱两种情况下窄缝通道内的冷却剂流动，通过比较相同热流密度工况下加热壁面出口附近相应峰值点温度来分析支撑柱对通道内冷却剂冷却能力的影响。结果表明：支撑柱对该通道的临界热流密度的影响较小，可在实验中采用支撑柱以防止窄缝通道变形。     

模板支撑薄弱层对现浇钢筋混凝土建筑结构施工荷载分布的影响

对现浇钢筋混凝土建筑结构施工期间,模板支撑系统架设中可能存在的薄弱层对施工荷载分布的影响,提出了简化分析方法,并用工程实测结果进行了验证,表明模型计算结果的正确性.分析表明,模板支撑薄弱层将导致模板支撑薄弱层的上部楼板承担的施工荷载增大,而模板支撑薄弱层下部楼板承担的施工荷载减小;实测表明,模板支撑薄弱层上的楼板承担的施工荷载同比增大约4.3%,薄弱层下的楼板承担的施工荷载减小约3.9%.施工期间应避免模板支撑薄弱层的出现,以防模板支撑薄弱层可能带来的风险.     

繁昌新大圩小洲连续崩岸的原因分析

文章针对长江芜湖河段进口段右岸繁昌小洲连续窝崩的现象,根据最新测图资料,分析了芜湖河段上段近期河势变化,初步探明崩岸原因,提出防护工程措施,并预测近期该段河道河势发展趋势.