寻找记忆中的街道--重现三峡西沱景观的设想

西沱是长江沿岸唯垂直等高线布局的场镇,随着三峡工程的发展,西沱镇175m水位以下全部被淹,美丽壮观的云梯街将不复存在,在这次国际景赛中,尝试提出一些方法和技术措施以重现西沱辉煌.     

寻找记忆中的城镇街道

西沱是长江沿岸唯一垂直等高线布局的场镇,随着三峡工程的发展,西沱镇175m水位以下全部被淹,美丽壮观的云梯街将不复存在,农这次国际竞赛中,尝试提出一些方法和技术措施以重现西沱辉煌。     

寻找记忆中的城镇街道

西沱是长江沿岸唯一垂直等高线布局的场镇，随着三峡工程的发展，西沱镇175m水位以下全部被淹，美国壮观的云梯街将不复存在，在这次国际竞赛中，尝试提出一些方法和技术措施以西沱辉煌。     

长江奇观“云梯街”

“万里长江第一街”西沱云梯街,是长江沿岸奇特的古建筑明珠,以其独特的风貌,安然无恙地幸存于长江三峡库区175米水位以上,吸引众多游客前往猎奇揽胜。 “云梯街”,座落于长江南岸的重庆市石柱土家族自治县西沱镇境内,与驰名中外的旅游胜地忠县石宝寨隔江相望,周边有长江三峡、梁平双桂堂、鄂西神农架、奉节白帝城、丰都“鬼城”、涪陵白鹤梁、湖南张家界等风景名胜环绕,是黄水国家森林公园历史文化景区的     

重庆石柱县西沱古镇——国家历史文化名城研究中心历史街区调研

<正>1.古镇概况西沱古镇位于重庆市石柱土家族自治县长江南岸。隔江与忠县石宝寨相望。因长江在此处呈S状急转弯。古名"西界沱"("沱"为江水急弯之意,长江沿线有许多以"沱"为名的村镇)。古镇位于三峡淹没区。上连丰都"鬼城"、     

重庆石柱县西沱古镇

1.古镇概况西沱古镇位于重庆市石柱土家族自治县长江南岸.隔江与忠县石宝寨相望,因长江在此处呈S状急转弯,古名“西界沱”(“沱”为江水急弯之意.长江沿线有许多以“沱”为名的村镇).古镇位于三峡淹没区,上连丰都“鬼城”、恩施“土家族风情走廊”.下与万州、云阳、奉节、小三峡等风景名胜相连.是三峡库区重点保护的传统风貌古镇,被列为全国第一批“中国历史文化名镇”.     

重庆西沱码头历史景观与现代景观的对比分析

根据西沱码头景观改造的需求,从文化主题、景观空间结构、建筑风貌、景观铺地、小品设施、植物六方面,对西沱码头的历史景观与现代景观进行了对比分析,剖析了古镇码头在现代景观改造中存在的问题,提出了传承地域文化的景观改造建议。     

基于公共空间营造的止戈古镇保护规划设计

止戈古镇历史悠久,风景优美,至今仍保存有较完整的川西风格的民居建筑。从对止戈古镇的现状测绘调研入手,提出基于公共空间营造的止戈古镇规划设计理念。止戈古镇设计中结合保护原古镇具有历史价值的民居建筑,新建和修复设计游客接待中心、民俗博物馆、艺术茶室等具有旅游接待功能的公共建筑,梳理出新的景观水街、古镇内街和商业外街3条景观轴线,给止戈古镇注入新的活力。     

重拾遗失的诗意——白沙古镇东海沱村落人居环境保护与发展实践

白沙古镇是国家级历史文化名镇,古镇核心区东海沱村落也是国家级传统村落,在选址、布局以及营建手法上都彰显着巴渝地区典型山、水古镇的智慧与魅力。随着经济的发展与交通方式的改变,古镇的发展与保护面临着诸多问题。该文通过对东海沱村落人居环境现状进行调研与分析,结合修缮、改造、新建等措施,从整体空间格局、视线通廊、街巷肌理、建筑风貌、景观节点等多个方面对东海沱村落规划建设做出引导构思,在保护原有空间格局与人文要素的前提下,发掘古镇环境要素价值,让古镇在现代化进程中焕发生机与活力。     

寻找记忆中的街道

20 0 0年国际建协向全球建筑师和建筑学学生举办了一次“建筑和水”的国际创意竞赛 ,选题直接关系到所创造的建筑与水的关系所能解决的问题和所产生的社会意义。西沱 ,是黔江土家族地区唯一长江港口 ,它是长江唯一也是最长垂直于等高线的小镇布局。整个场镇从江边垂直向上千步之梯长达 2 5ｋｍ ,高差 16 0ｍ ,中有两个大的转折平台 ,80多个小的间歇小平台 ,是一种主旋律的道路修饰 ,长短、大小 ,宽窄之道圆满“直通天上”的亢奋之歌。远眺西沱 ,宛如一道云梯直通天上 ,从江面乘船而过 ,看到的是层层叠叠 ,鳞次栉比的人字形山花墙面 ,墙面竹…     

西南地区历史城镇社会网络保护评价探索研究

近年来,空间与物质形态的保护更新已成为许多历史城镇研究的重点.西南地区由于区位弱势、地形阻隔、资源有限、人口流动等使得历史城镇面临严重的物质衰败、社会网络断裂等问题.研究借助社会网络分析方法,选取西南典型历史城镇重庆市偏岩镇、中山镇、宁厂镇和西沱镇四个国家级历史文化名镇,建立社会网络保护评价体系.过程如下:构建历史城镇居民户"点"单元与社会关系"线"联结的语义模型,借助Ucinet6. 0平台构建社会网络拓扑结构;尝试建立由网络结构稳定性、脆弱性与均衡性构成的社会网络保护评价体系,对网络密度,k核和切点等6个指标进行计算比较,确定保护情况.SNA模型的结果显示偏岩镇具有较高的稳定值和均衡值,西沱镇较低;研究结果也表明,居民邻里与地缘关系更加稳定和健康,相对不容易被破坏;最后依据社会网络保护评价体系,从社会网络结构和物质形态规划两个层面提出历史城镇社会网络的保护对策,指导历史城镇的三区划定、重点建筑的识别与保护、公共空间与等级设置、公共服务设施规划等规划更新.如按照网络结构"k核"指标划分历史城镇的核心保护区,依据"非k-核"确定建设控制区和环境协调区.综上可知,历史城镇的规划建设和管理要注重社会网络保护和原住民维护.     

Water Resources Development: A Balanced Approach

Customers, the public generally, the water industry, its regulators and the government are aware that water can be a scarce and costly product. Resource planning and development must increasingly be viewed as a combined package of water efficiency in (a) use, (b) metering and tariff policy, (c) leakage reduction, and (d) physical schemes.
Droughts, fears over possible climate change, concerns about resources and the environment, a greater awareness of the role and costs of the water industry and statements by the Department of the Environment, the Office of Water Services, and the National Rivers Authority have added weight to this sensible shift in emphasis.
However, society needs reliable water supplies and cannot completely rely upon the uncertain impact that demand side-measures may bring about – nor, even where achieved and cost-effective, on the important savings in losses. New resource schemes can take many years to implement. Therefore, in order to ensure adequate and reliable supplies, plans for new schemes must be brought to a state of readiness, and, in many cases, implemented.     

Environmental affordances and children’s needs: Insights from child-friendly community streets in China

With rapid urbanization in China, an increasing building density has squeezed the urban public space. Community streets are occupied by motor vehicles or other functions, and can no longer sufficiently support children to carry out safe and independent activities. As an important space for children’s daily natural contact and social activities, the lack of the spatial function of streets results in a decline in children’s subjective initiative and social abilities. The United Nations has stressed the importance of community as the basic unit of space for children’s daily activities in building child friendly cities. It is urgent to reshape child-friendly community streets and support children’s healthy growth. Integrating previous research results on affordance theory and design, children’s growth and environment, and street-game spaces, this study focuses on investigating 23 community streets in four residential communities in Nanjing through questionnaires, interviews, observations, and other methods. Then, from the perspective of cognitive affordance, functional affordance, and social affordance, it analyzes the behavioral possibilities provided by the environment and the needs of the children-user group. Finally, from the perspectives of openness and security, preference and diversity, positive and negative, and reality and potential, it proposes a method to assess the existing environment. This study aims to extract the significant characteristics of the built environment that effectively support and promote children’s outdoors activities, and explore the design strategy of improving street space sharing through optimizing space elements and structure at the medium and micro levels, so as to respond to multiple goals including livable city development from the perspective of child friendliness. This study also tries to change the logical way of design thinking and provide an eco-psychological perspective on how to build a child-friendly community.     

成兰铁路某地质灾害点崩塌及边坡特征分析

为了查明成兰铁路沿线茂县曲谷沟小学后山崩塌地质灾害的类型、结构形态、规模、变形特征及成因机制,对该崩塌地质灾害开展了工程地质应急勘查工作,采用地面测绘、探井、原位测试等多种勘查手段,查明该崩塌、教学楼的不稳定斜坡(陡坎)成因、类型、规模、范围、稳定状态及危害性,并分析其变形机制,表明:崩塌危岩体规模级别属中型,危害对象等级为一级,勘查地质条件类型为复杂,该灾害体治理工程等级为Ⅰ级。得到的结果可为进一步的评估防治工程提供参考。     

基于聚类分析的徽州传统民居庭院空间形态与要素研究

研究针对徽州传统民居的庭院空间展开空间组织模式分析,对63处传统民居庭院进行调研,提取了面积、面积比、长宽比、饱和度和边界系数五个量化指标对庭院空间进行描述,并运用聚类分析的方法对庭院空间进行分类。总结出中小规模方整型、中小规模条型、中小规模不规则型和大规模复杂型四种庭院类型,在此基础上对庭院位置与其中要素的分布规律进行归纳。研究得出：四类庭院在位置分布与要素布置上均有所不同,中小规模方整型庭院作为空间过渡与补充,以前院和后院居多,多布置绿化、漏窗等要素;中小规模条型庭院以前院为主,组织规模较大的宅居组团的入口交通,要素上多以构筑物、拱门、字匾和二次轮廓要素结合布置;中小规模不规则型庭院往往作为宅居空间中的亮点,多位于前院和侧院,以绿化、水面、漏窗要素居多;大规模复杂型庭院多为生活化的后院,绿化、水面、石凳等要素较多。     

基于DEMATEL-ISM方法的后疫情时代工程项目组织韧性影响因素研究

随着疫情的常态化发展,如何促进后疫情时代工程项目组织韧性的培育,提高工程项目组织应对风险的能力成为重要课题。基于此,对影响工程项目组织韧性的因素进行系统分析,通过文献研究法和专家咨询法识别出20个组织韧性的影响因素,运用DEMATEL-ISM方法,构建了DEMATEL散点图及ISM层级拓扑图,从而系统、清晰地呈现出工程项目组织韧性影响因素之间的可视化关系,进而对因素的重要程度及因果关系进行深入剖析。分析结果表明:“社会资本、组织学习、组织承诺”为组织韧性的根本因素,“组织领导、组织敏捷性、人力资本、积极情绪、战略共识”五方面因素指标具有较高的影响度及中心度,“组织协调”的被影响度最高。基于研究结果,提出了优化提升工程项目组织韧性的对策建议。     

Research on construction slip monitoring method of spatial steel structure with triangular cone shape spanning 120 meters

大跨度钢结构的滑移是一个动态过程，滑移推力、环境荷载、轨道承载力、轨道平顺性等因素对结构准确就位均有影响。为此，提出了一种能够监测滑移施工过程结构安全、稳定及滑移同步性的方法，该方法通过模拟分析施工滑移过程，准确预判滑移中结构出现损伤的位置和程度，提前采取措施；通过实时在线监测结构滑移施工过程中多项参数的变化，避免滑移过程中结构的应力集中、局部变形过大、脱轨、失稳及倾覆。以大同美术馆钢结构屋盖滑移施工监测为例，在滑移前对滑移施工过程进行模拟分析和监测系统安装，对滑移阶段结构关键构件的应变、位移、构件变形及环境温度进行实时监测、分析与反馈。结果表明：大跨度钢结构滑移受温度、轨道平顺性、轨道处结构变形值、顶推设备误差影响；采用有限元模拟分析、现场监测、实时分析与反馈的监测方法,可有效控制滑移过程中结构的内力、变形、各轨道滑移的同步性及结构的整体稳定性。     

Molecular detection of pathogens in water - The pros and cons of molecular techniques

Pollution of water by sewage and run-off from farms produces a serious public health problem in many countries. Viruses, along with bacteria and protozoa in the intestine or in urine are shed and transported through the sewer system. Even in highly industrialized countries, pathogens, including viruses, are prevalent throughout the environment. Molecular methods are used to monitor viral, bacterial, and protozoan pathogens, and to track pathogen- and source-specific markers in the environment. Molecular techniques, specifically polymerase chain reaction-based methods, provide sensitive, rapid, and quantitative analytical tools with which to study such pathogens, including new or emerging strains. These techniques are used to evaluate the microbiological quality of food and water, and to assess the efficiency of virus removal in drinking and wastewater treatment plants. The range of methods available for the application of molecular techniques has increased, and the costs involved have fallen. These developments have allowed the potential standardization and automation of certain techniques. In some cases they facilitate the identification, genotyping, enumeration, viability assessment, and source-tracking of human and animal contamination. Additionally, recent improvements in detection technologies have allowed the simultaneous detection of multiple targets in a single assay. However, the molecular techniques available today and those under development require further refinement in order to be standardized and applicable to a diversity of matrices. Water disinfection treatments may have an effect on the viability of pathogens and the numbers obtained by molecular techniques may overestimate the quantification of infectious microorganisms. The pros and cons of molecular techniques for the detection and quantification of pathogens in water are discussed.     

露天矿山高陡岩质边坡生态修复技术的应用现状与发展趋势

矿产尤其是石材矿产的开发必然会对原矿区的环境造成破坏，容易形成矿山高陡岩边坡，即白茬山。白茬山由于坡度高、坡面长以及坡面温差大等原因，易形成恶劣的生存环境，很难实现有效的植被附着，长期复绿效果充满挑战。对此类生态环境中的常见复绿技术的研究现状进行了介绍，分析了不同技术的优缺点及使用机制。进一步根据白茬山的地质、地形和地表等特征，进行生态修复技术的优化与改进，展望修复技术的发展趋势，助力生态系统的恢复与发展。     

普陀山普门万佛宝塔空间复杂曲面瓦片铺设关键施工技术

位置高、坡度大、空间复杂的瓦片铺设面往往给瓦片测量、放样、下料带来困难.普陀山普门万佛宝塔项目的瓦片铺设过程采用无协作目标电子全站仪空间定位、放样,计算机软件AutoCAD、Sketchup辅助瓦片放样、下料、预排等关键技术,节约了材料成本,提高了施工效率,缩短了工期,达到了良好的铺贴效果.基于该工程实例,对上述关键技术的特点、原理、操作要点及其带来的经济效益与社会效益进行了分析讨论.