广州城市建筑对气溶胶扩散阻碍作用的遥感分析

应用遥感方法提取了广州城市上空的大气气溶胶分布信息和城市建筑容积率信息 ;从大气气溶胶与城市建筑容积率空间相关性和大气气溶胶与建筑容积率分级关系两个方面 ,分析了广州城市建筑对大气气溶胶扩散的阻碍作用 ,证明广州城市建筑容积率为 5 6是影响气溶胶扩散作用的阈值 .     

研制用化工废渣(磷石膏)制作新型墙体材料——磷石膏空心条板

研制用化工废渣(磷石膏)制做磷石膏空心条板的生产工艺方法,较使用天然石膏为原料的传统生产工艺有改进的独到之处。生产出来的产品质量完全可代替天然石膏空心条板,达到国家规定的技术标准,成本价格却大幅度下降,为深入推广使用这种高档墙体材料找到一条可行途径。即处理了有害工业废渣,解决了排渣单位急待处理废渣的难题,保护了生态环境,又为建筑业提供了一种新型墙体材料,效益显著。     

Evaluation of CFD Simulation using RANS Turbulence Models for Building Effects on Pollutant Dispersion

CFD evaluations were performed to examine the applicability of the RANS methods in simulating pollutant dispersion near, within and over three typical building configurations: (1) an isolated building, (2) a building array and (3) an urban intersection. The CFD results are compared with values obtained from wind tunnel tests. In some situations major differences between the wind tunnel tests and the CFD results were observed. The main source of difference between the CFD and wind tunnel results was inadequate modelling of local flow patterns using the RANS turbulence models. Also inappropriate evaluation of high intermittent turbulent mixing in the RANS approach may lead to either over-prediction or under-prediction of the concentration level, by up to a factor of 10, depending on the case investigated.     

十年给排水设计回顾

综述了近十年来炼油厂给排水工程的设计概况。论述了逆流式冷却塔、污水处理、给水处理以及建筑给排水及消防的技术发展和新技术的开发及应用；并提出看法和建议。     

高层建筑、建筑材料与室内氡污染

对高层建筑连续一年的室内氡浓度监测分析，发现室内氡浓度与建筑材料，建筑结构以及人们的生活习惯密切相关。     

现代建筑物室内空气质量的影响因素分析

根据现代建筑物的特点，主要从室外大气污染物；通风空调系统；建筑、装饰材料；办公室设备和家电；室内人员自身行为等５个方面，分析了影响室内空气质量的因素。并在此基础上，提出了相应的改善措施。影响现代建筑物室内空气质量的原因有很多，应根据其具体功能和所处地理位置，以及自身的建筑结构特点，采取不同的改善措施。     

基于可靠度约束的高层建筑结构优化设计

本文以文献中提出的结构体系可靠度分析的最弱失效模式法为基础,充分考虑结构体系的造价和结构的损失期望与结构体系可靠度的关系,以及结构构件的可靠度约束,提出了结构体系目标可靠度的优化决策方法;基于优化决策的结果,提出了结构体系的最优设计准则;最后,依所提出的最优设计准则,实现了高层建筑基于构件和结构可靠度约束的结构优化设计。     

The stone forum: Implementing a consensus building methodology to address impacts associated with small mining and quarry operations

Small-scale mining, including quarry operations, continues to play an important social and economic role in hundreds of communities throughout Brazil. Often operating outside the formal economy, conflicts between the owners of small-scale mining operations, the mineworkers, various government agencies, and other stakeholders have contributed to the progressive degradation of the environment, poor health and safety standards, and low productivity. The Centre for Mineral Technology (CETEM) of Brazil is implementing a consensus building methodology in order to produce dimension stone by small-scale miners on a more sustainable basis in the Pádua region, located in the northwest of the State of Rio de Janeiro. The approach being used by CETEM is based on its own experience in working with gold prospectors in the Amazon, and lessons and experiences learned from Canadian officials and industry representatives. The lessons and insights gained from this project may prove to be useful to those involved in addressing similar problems elsewhere in Brazil, South America and around the world.     

灰色系统理论在建筑物沉降和倾斜预测中的应用

建筑物的地基不均匀沉降导致建筑物倾斜是严重的建筑工程灾害,对其进行定量的观测研究和预报是防止灾害扩大的必要前提。本文利用灰色预测模型对建筑物倾斜和基础沉降进行模拟和预测,结果表明:模型精度高,预测结果令人满意。