超限结构无缝法施工在污水处理工程中的应用

介绍了一种在超限混凝土结构中取消伸缩缝或增大伸缩缝最大间距的新型施工方法——超限混凝土结构无缝法施工。论述无缝法施工的原理及膨胀加强带的设置,探讨UEA膨胀混凝土的配制,在实践的基础上总结了无缝法施工的方法、注意事项及优点。     

Understanding local community attitudes toward industrial development in the Great Barrier Reef region World Heritage Area: are environmental impacts perceived to overshadow economic benefits?

Conflicts between industrial development and environmental conservation can be particularly acute when such development occurs in the vicinity of World Heritage sites. A key example is the Great Barrier Reef World Heritage Area (GBRWHA) in northeastern Australia, where a 2012 review by the World Heritage Council found that rapid port development inshore of the coral reef posed significant risks to local marine ecosystems. Such instances pose pressing challenges for decision‐makers seeking to manage World Heritage sites for multiple values and needs, including those of key stakeholder groups, such as local communities. There is increasingly a societal expectation that public decision‐making takes into account local views and priorities, and that companies seek a ‘social license to operate’. This research explored local community attitudes toward port development associated with the export of liquefied natural gas (LNG) and coal through the GBRWHA. Using data drawn from a survey and interviews, the research examined how a range of geographical factors, including proximity to gas infrastructure and the perceived impacts and risks of development to the local community, economy and environment shape community perceptions of the industry. Findings suggest that local attitudes toward gas and coal terminal development inshore of the GBRWHA are shaped predominantly by community perceptions of environmental impacts and risks associated with such infrastructure, in contrast to a broader public narrative that focuses largely on economic benefits. A complex combination of other factors, including social impacts, personal environmental values, community trust in industry, and equity in decision‐making and distribution of the risks and benefits of industrial development also contribute. Placed in a broader, global context, the findings have important implications for public decision‐making processes in Australia and elsewhere as they suggest that, for local communities, the perceived impacts of gas development on the environment may overshadow the benefits of industry.     

疏水性超高交联吸附树脂对氯代烃蒸气的固定床吸附特性研究

采用固定床吸附法研究了三氯乙烯（TCE）、 1,2-二氯乙烷（DCE）和三氯甲烷（TCM）共3种氯代烃类蒸气在疏水性超高交联吸附树脂LC-1上的动态吸附行为.结果表明, TCE、 DCE和TCM蒸气的初始浓度、 气体流速和吸附温度均会影响动态吸附过程,随着初始浓度、 气体流速和吸附温度的增大,穿透时间变短,传质区长度增大,其中气体流速的影响最大;采用半经验数学模型Yoon-Nelson模型对吸附穿透实验数据进行拟合,拟合相关性系数R²≥0.994.     

采空区冒落带内破碎岩体的渗流特征与渗透性试验研究

为探索采空区冒落带内破碎岩体中地下水的渗流特征,建立采空区冒落带内破碎岩体渗透系数与空隙率的相关关系,确定采空区冒落带内破碎岩体的渗透系数值,并基于采空区冒落带内破碎岩体的空隙分布特征与大孔隙非均质多孔介质的水流特征,设计了一套一维渗流柱,采用常水头稳态渗透法对采空区冒落带内破碎岩体的渗透性能以及不同空隙率破碎岩体的渗...     

开发区环境管理指标体系研究

开发区环境管理指标体系研究是建立开发区环境管理综合体系的基础性工作,也是考核开发区生态环境建设与管理效果的定量评价工具。本文在探讨环境管理指标体系的确定原则、选择和量化等基础上。提出了一套包括环境保护指标、循环经济指标、绿色管理指标和相关性指标四类指标在内的环境管理综合指标体系。并将该指标体系应用于杭州钱江经济开发区的环境管理实践。结果表明,杭州钱江经济开发区的环境管理完善程度总得分为74．6％,总体上还有待进一步完善,特别是ISO14001管理体系认证和环境质量改善等方面有待进一步加强。     

The impact of urban planning on land use and land cover in Pudong of Shanghai,China

Functional zones in cities constitute the most conspicuous components of newly developed urban areas,and have been a hot spot for domestic and foreign investors in China,which not only show the expanse of urban space accompanied by the shifts both in landscape(from rural to urban)and land use(from less extensive to extensive),but also display the transformation of regional ecological functions.By using the theories and methods of landscape ecology,the structure of landscapes and landscape ecological planning can be analyzed and evaluated for studying the urban functional zones‘layout.In 1990,the Central Govermment of China declared to develop and open up Pudong New Area so as to promote economic development in Shanghai.Benefited from the advantages of Shanghai‘s location and economy,the government of Pudong New Area has successively built up 7 different functional zones over the past decade according to their functions and strategic goals.Based on the multi-spectral satellite imageries taken in 1990,1997and 2000,a landscape ecolgy analysis was carried out for Pudong New Area of Sanghai ,supported by GIS technology.Green space(including croplands )and built-up areas are the major factors considered in developing urban landscape.This paper was mainly concerned with the different spatial patterns and dynamics of green space,built-up areas and new buildings in different functional zones,as influenced by different spatial patterns and dynamics of green space,built-up areas and new buildings in different functional zones,as influenced by different functional layouts and development strategies.The rapid urbanization in Pudong New Area resulted in a more homogeneous landscape.Agricultural landscape and suburban landscape were gradually replaced by urban landscape as the degree of urbanization increased.As a consequence of urbanization in Pudong,not only built-up patches,but also newly-built patches and green patches merged into one large patch,which should be attributed to the construction policy of extensive green space as the urban development process in Pudong New Area.The shape of green area of 7 functional zones became more and more regular because of the horticultural needs in Shanghai urban planning.Some suggestions were finally made for the study of future urban planning and layout.     

昆明市烟尘控制区建设过程中存在的问题分析

针对昆明市世博、新迎片烟尘控制区环境监测中存在的问题,提出了解决方法加强环保宣传,提高环境意识;加强人员素质培养,提高管理水平;加强除尘脱硫技术的研究和推广,从源头抓起,减少污染等,这样,才能管理好烟尘控制区,真正达到烟尘控制的目的.     

利用Google Earth研究构造对喀斯特地貌的控制和对碳酸盐岩岩系风化成土的影响

通过互联网Google Earth欧洲卫星图像资料的观察,发现贵州喀斯特地区碳酸盐岩风化成土能力与地层岩性、构造和地貌等密切相关。二叠系生物礁石漠化显著,成土能力差;三叠系大冶组薄层灰岩成土能力高,很少有石漠化;地层倾角大的碳酸盐岩区,石漠化不显著;地层平缓的碳酸盐岩区,石漠化强或中等,碳酸盐岩风化成土能力中等。另外,大型节理带对碳酸盐岩风化成土具有明显的控制作用,节理带碳酸盐岩溶蚀相对强烈,常形成低洼地形,碳酸盐岩风化成土速率较高,红粘土堆积相对厚,不容易石漠化;而节理带间的区域往往地形较高,是石漠化易发育的区域。     

地质构造对地质灾害的影响研究——以鲁甸县强烈构造变形区为例

通过近一年的野外地质调查、室内资料整理、GIS综合信息模型分析等方法,总结归纳出鲁甸县各类地质灾害的分布特征,并分析阐述了其形成条件和机理,发现地质构造对灾害的分布和形成及易发性有重大影响。     

国外海洋与海岸带旅游研究进展

海洋与海岸带旅游已成为国外旅游研究最重要的领域之一。论文在国外相关文献的基础上,从海洋与海岸带旅游发展的环境问题、经济问题、社会文化问题、海洋与海岸带旅游资源评价、规划管理与可持续旅游发展、小岛屿发展中国家或地区旅游开发等方面对国外海洋与海岸带旅游主要研究进展进行综述和评价,并为我国海洋与海岸带旅游资源开发和管理的理论研究与实践应用提供参考。