云南大瑞铁路DK79—DK88段工程地质灾害预测及防治

大瑞铁路K79—K88段处于滇西红层区,地质灾害强发育。分析研究已有地质灾害发育特征和发展趋势,对铁路工程建设引发新地质灾害进行预测,为地质灾害的防治提供了基础资料,并提出有效、针对性的地质灾害防治措施。     

预应力砼管桩支护体系的设计与施工

在江苏边防总队海警支队综合楼基坑支护中,将预应力混凝土管桩作为支护桩进行尝试,达到了理想的效果,得出了管桩在适宜条件下用作基坑支护是可行的。同时,控制管桩支护结构的变形,减少桩身所受弯矩,与内支撑结合使用效果更佳,管桩与支撑支护形式的组合,有利于节约支护成本。预应力砼管桩的桩身质量易于控制以及环保,采用管桩作为支护桩具有良好的经济性,对提高施工效率和缩短工期有良好的保证,将其应用于支护工程则更具有竞争性,拓宽了今后深基坑设计的思路,可予以推广。     

高压环境条件下注浆模型试验系统设计

注浆工程常常在高地层压力、高水压力的地质环境条件下进行(如煤矿堵水或注浆加固工程)。为了研究高压环境条件下注浆浆液的渗流扩散特征,作者研制了可形成5MPa以上高压环境的注浆试验系统。该试验系统由四个功能模块组成,并可分为四个设备子系统。该试验系统的核心设备高压注浆模型试验装置中应用压力传导管解决了高压罐体内部监测设计所遇到的尺寸效应、传感器防腐、高压密封等难题。     

Cognitive mapping of creative practice: A case study of three English design agencies

This paper examines the relevance of causal mapping - essentially a form of visual aid to enhance our understanding of the thoughts of an individual, group or organisation - as a means of analysing innovation and creativity within English design agencies. Focussing upon successful design contracts in three selected case studies, the discussion considers how far cognitive mapping can be used to understand the relations between design practices, firm routines and conventions, and the local creative milieu. The paper argues that cognitive mapping confirms the value of a situated learning perspective in which knowledge is inseparable from practice. It reveals that successful design is based on deliberate practices pertaining to relationships with clients, group dynamics, and team collaboration within the design consultancy. These practices narrow uncertainty and allow designers to exercise imagination and creative brokering. Whilst cognitive mapping can be a useful heuristic tool, the analysis suggests that it is limited as a means to unravelling tacit knowledge.     

多层砌体结构房屋设计要点及常见问题

多层砌体结构房屋由于其材料呈脆性的特点,抗震性能比较差。但由于其造价低,施工周期短,施工工艺简单,在我国中小城市的民用建筑和大部分农村建筑中仍普遍采用,因此,设计时仍须高度重视。只有掌握设计要点,妥善处理各环节的问题,才能切实提高设计质量。     

勘察设计行业软件正版化与国产化的若干思考

本文对我国勘察设计行业软件正版化与国产化的相关情况进行了系统思考,阐述了行业内软件正版化与国产化的现状与发展趋势,存在的主要问题,并提出了相关的对策建议。希望通过实施知识产权战略,实施以国产化推动正版化的重要举措,共同推进勘察设计行业软件正版化与国产化工作的健康发展。     

Empirical design of scour protections around monopile foundations: Part 1: Static approach

Together with new opportunities, offshore wind farms raise new engineering challenges. An important aspect relates to the erosion of bottom material around the foundation of the wind turbines, caused by the local increase of the wave and current induced flow velocities by the pile's presence. Typically, the expected scour has a considerable impact on the stability and dynamic behavior of the wind turbine and a scour protection is placed to avoid erosion of the soil close to the foundation. Although much experience exists on the design of scour protections around bridge piers (which are placed in a current alone situation), at present, little design guidelines exist for the specific case of a scour protection around a monopile foundation subjected to a combined wave and current loading.     

底拖网浮沉力配备设计计算

本文提出了一套底拖网浮沉力配备的计算式子，并根据中国沿海现有几十种较有代表性的底层有翼单囊拖网网具资料，统计了大量的浮沉力配备生产经验数据ｆｆ、ｆｑ和Ｆｆｑ，举例介绍了这些浮沉力配备生产经济数据的统计以及根据生产经验数据或根据动力相似原理的两种浮沉力配备设计的计算方法。     

小型船用油水分离器的设计

介绍ＣＹＦ—０．０５／ＣＹＦ—０．１型油水分离器的主要技术参数、工作原理、设计计算、台架试验。试验表明，经本装置处理后的油污水满足ＧＢ３５５２—８３“船舶污染物排放标准”所规定的排放标准。     

《四川省“十二五”规划纲要》专题地图的设计与编制

本文详细介绍了《四川省“十二五”规划纲要》中专题地图的设计与编制方法,包括地理底图的编制,专题内容的表现形式设计,色彩和符号的设计。