遥感技术在土地利用中的应用

本文利用Aster遥感数字图像，建立了彬县煤矸石电厂评价区各土地利用现状类型的遥感影像特征，采用目视解译和人机交互解译相结合的方法，圈定了土地利用现状类型范围，在此基础上，进行土地利用类型面积统计，总结各土地利用现状的空间分布特征，为了科学地评价电厂建设对生态环境的影响提供了基础依据。     

智能建筑中建筑智能化系统工程实施的技术管理框架

本文围绕必须将智能系统工程当作"工程"来做.引入建筑工程规范管理的理念,就加强工程质量控制及管理,论述了一种工程实践中采用的设计技术管理过程的实施框架,希望对国内智能建筑工程的实施会起到一定的借鉴作用.     

建筑自喷系统使用扩展覆盖边墙型喷头的探讨

针对轻危险级和危险级中 级建筑内居室上空为平顶板的场合,提出了使用扩展覆盖面边墙型EC喷头代替普通水平边墙型喷头的见解并就相关技术问题展开了讨论     

祈祷平安——来自甘肃拉卜楞寺的消防报告

1985年,位于甘肃省甘南藏族自治州夏河县的拉卜楞寺大经堂发生了特大火灾。然而,历史的教训并未能引起人们对消防工作的足够重视,致使该寺的消防基础设施仍然严重滞后,灭火力量也十分薄弱。辉煌的拉卜楞寺在呼唤着消防,祈祷着平安。1灿烂文化拉卜楞是藏语“拉章”的变音,意为僧侣的宫殿。该寺位于甘肃省甘南藏族自治州夏河县城西北,距县城约一公里。她背靠雄伟的曼达拉山,一碧见底的大夏河从她面前缓缓流过。拉卜楞寺建于清代康熙48年(1709年),历经五次修建和扩建。先后建起了六大扎仓(学院)、31囊欠(活佛府邸)以及大小佛殿84座。其中3层楼…     

Mechanical behavior of micaceous clays

This study aims to investigate the effect of mica content on the mechanical properties of clays.Commercially available ground mica was blended with a locally available clayey soil,at varying nica contents by mass of 5%,10%,15%,20%,25% and 30%,to artificially prepare various micaceous clay blends.The preliminary testing phase included consistency limits and standard Proctor compaction tests.The primary testing program consisted of unconfined compression(UC),direct shear(DS) and scanning electron microscopy(SEM) tests.The test results showed that the liquid and plastic limits exhibited a linear,monotonically increasing trend with increase in mica content.The rate of increase in the plastic limit,however,was found to be greater than that of the liquid limit,thereby leading to a gradual transition towards a non-plastic,cohesionless character.The soft,spongy fabric and high water demand of the mica mineral led to higher optimum water contents and lower maximum dry unit weights with increasing mica content.Under low confinement conditions,i.e.the UC test and the DS test at low normal stresses,the shear strength was adversely affected by mica.However,the closer packing of the clay and mica components in the matrix under high confinement conditions offsets the adverse effects of mica by inducing frictional resistance at the shearing interface,thus leading to improved strength resistance.     

双塔双索面预应力混凝土斜拉桥的地震反应分析

重庆奉节长江公路大桥是一座双塔双索面预应力混凝土斜拉桥,为了解其在地震作用下反应特性,利用大型通用有限元软件 Ansys 对其进行了地震反应时程分析,总结了其在不同地震动输入下的反应特点,为同类桥梁抗震分析提供了一定的借鉴经验。     

Erratum to: Experimental research on overlying strata movement and fracture evolution in pillarless stress-relief mining

International Journal of Coal Science & Technology -     

Sustainable construction in China: status quo and trends

The structural challenges facing China's construction industry are reviewed here. China's current practical intitatives, barriers and problems in moving towards sustainable development are considered: demonstration ecological villages, innovative walling materials, research on passive solar buildings and the improvement of earth buildings.     

硅酮密封胶中矿物油增塑剂的应用及其检测方法研究

介绍了国内建筑硅酮密封胶中矿物油增塑剂的品种、性能和应用情况,分析了滥用矿物油增塑剂产生的危害,概述了基于热失重方法定量检测硅酮密封胶中矿物油增塑剂含量的研究结果,提出了改进检测方法包括选择较高试验温度和较长加热时间的建议.     

浅析地铁车站建筑设计的易错问题

本文以现行规范和标准为依据,结合设计及施工配合中的经验教训,对地铁车站建筑设计中的易错问题进行了归纳总结,包括建筑布置、防水、地面工程等方面,分析了这些问题的症结所在,并有针对性地提出了改进措施。