株六复线高路堑工点石方控制爆破

介绍紧邻既有线的高路堑石方采取控制爆破的施工方法及安全防护措施。     

盆地面波效应作用下地铁车站动力响应分析

为探究浅埋地下结构在盆地面波效应作用下的地震反应特性,文章以北京某两层两跨箱型框架结构地铁车站为工程背景,利用FLAC有限差分软件,针对盆地面波效应作用与单一地震波作用下地铁车站的动力响应进行了分析对比。分析结果表明,在盆地面波效应作用下地下结构的动力响应有明显的放大作用,且随着地下结构深度的增加,相应部位的放大系数有所减小;在盆地面波效应作用下没有改变原有地下结构抗震薄弱点位置;在盆地面波效应作用下,地震波的地震动特性对地下结构的影响起着非常重要的作用。     

Remaining Useful Life Prediction of Turbofan Engine Using Hybrid Model Based on Autoencoder and Bidirectional Long Short-Term Memory

High voltage electrostatics and corona discharge are utilized for various applications in pollution and environmental control. The traditional applications have many flaws due to improper construction of electrode design and assembly that cause system failure, in particular when electrically stimulated devices are exposed to high humidity. A new innovative-patented design by Hamade, electrically stimulated catalytic converter (ESCC), eliminates such flaws and shows the wide practical applications of the new design. The new design utilized previous patented designs and work of the same inventor but retrofitted for catalytic auto exhaust emission control. The current and previous patents include: employing electrically stimulated filtration (ESF) to replace high efficiency particulate air (HEPA) filters, treatment of biological and infectious diseases, electret fabrication, and, most notably, the invention of a new electrically stimulated catalytic converter (ESCC). The electrically stimulated catalytic converter invention includes an exhaust conduit fed from the engine exhaust port with a housed corona charger apparatus. The opposite end is opened to the atmosphere outside of the vehicle or connected to a reduced-size catalytic converter. The corona charger is intrusively or non-intrusively associated with a main flow path defined by the exhaust conduit. The corona charger includes at least one electrode, which may be recessed away from, the main flow path. A plurality of corona chargers may be used in various combinations, optimally a two dimensional grid. The electrically stimulated catalytic converter is adapted to treat and eliminate auto exhaust pollution emission to air.     

红砂岩试验路堤填筑施工技术

作者提出将红砂岩在105℃温度下烘干后,冷却至室温并浸入清水中,视其崩解状况分为三类。若红砂岩24h不崩解、或崩解量不大于总量的1%,这类红砂岩为三类可按一般填石路堤对待。据此在常吉公路作了试验段,介绍了试验段内容、方法、工艺及观测成果,总结了分层填压厚度、整平、压实经验。     

UTAC-8超薄罩面在公路隧道养护中的应用

针对肇阳高速公路阳阳段隧道旧水泥混凝土路面抗滑性能快速衰减、影响行车安全的工况,采用UTAC-8超薄沥青混凝土罩面进行2cm厚度的加铺.在明确原材料质量控制指标和目标、生产配合比设计的基础上,对施工工艺、工后质量进行总结和分析.实践表明,UTAC-8超薄罩面对隧道原水泥混凝土路面行驶质量和抗滑性能有明显改善.     

美国佛罗里达州观海桥宽底T梁联成创记录跨径

佛罗里达州境内跨越海岸内河的９８国道上，有一座总长７９３ｍ的预制应力混凝土桥，其主跨以７６．２ｍ而成为全美当前最长的混凝土梁式桥跨，梁式跨径之所以能创记录，是由于将预制后张混凝土宽底Ｔ梁与中挂梁联成连续结构，本文讨论了有竞争的招标，设计上的考虑，生产和施工方法以及桥梁造价。     

新朝阳坝一号隧道紧靠既有隧道施工技术

在株六复线新朝阳坝一号隧道施工中，隧道进口端(58m)紧靠既有朝阳坝一号隧道，本文详细介绍了该段施工方法的选定、施工工序、机具设备、爆破施工、注意事项，对今后类似隧道的施工有借鉴作用。     

测量跑偏量的实用方法

1 问题的提出许多作业机械在进行直线行驶性能试验时都要测定跑偏量(如推上机、摊铺机、划线车、铣刨机等).日前一直延用的试验方法是在试验跑道上,量取一段规定距离(如50m、15m等)作为试验区段,并划出两端线