外墙保温体系节能及其防裂机理研究

阐述了建筑物节能保温效果降低的主要原因是墙体裂缝,从抗裂的角度分析了外墙外保温的优势,并提出了外墙保温体系裂缝控制的原则和防护措施。     

小型断陷湖盆下生上储式油成藏规律研究——以海-塔盆地中部主要断陷带大磨拐河组为例

通过油藏解剖及油藏与油成藏条件之间的空间匹配关系得到,海-塔盆地中部主要断陷带大磨拐河组油藏主要为断层油藏,平面上主要分布在反转构造上和长期发育断裂附近。大磨拐河组油成藏与分布主要受4种因素的控制:①南一段源岩区控制着大磨拐河组油成藏与分布的范围;②反转构造及其附近是大磨拐河组油聚集的有利部位;③辫状河三角洲前缘亚相砂体为大磨拐河组油聚集成藏提供了储集空间;④长期发育断裂不仅为南一段源岩生成的油向大磨拐河组运移提供了输导通道,而且为大磨拐河组油聚集提供了圈闭。大磨拐河组油成藏模式为:南一段源岩生成的油在浮力作用下通过长期发育断裂向上覆大磨拐河组运移,在反转构造及其附近的断块或断层-岩性圈闭中聚集成藏。     

桥面整体化层混凝土施工裂缝控制分析

混凝土开裂可以说是“常见病”和“多发病”。长期困扰着桥梁工程技术人员．混凝土裂缝出现的原因很多。从设计到施工、从混凝土原材料到配合比。任何一个环节的疏忽都可能导致裂缝的出现．由于混凝土本身实际收缩量就大干混凝土这种材料的允许变形量。因此。混凝土的裂缝很难避免。关键在于控制裂缝的生长宽度．笔者以桥面整体化层为例。尽可能对商品混凝土引起的裂缝的种类和产生的原因作较全面的分析、总结，以方便施工中找出控制裂缝的可行办法。达到防范作用．     

苏北新生代盆地断陷和坳陷的形成机理

苏北新生代盆地是由众多的断陷和坳陷组合而成的,它们发育在中、古生界逆冲推覆体上,其结构、规模和区域分布受逆冲推覆体的控制。断陷的形成是区域拉张背景下逆冲推覆带后缘断片回滑的结果,构成逆冲推覆体的“后缘凹陷”。苏北盆地不仅存在不同时期纵向上的断坳转化,而且在同一时期横向上兼有断、坳并存。      

松干堤防混凝土防浪墙裂纹成因及预防措施

分析了通河县松干堤防一期防浪墙竖向裂纹产生的原因。提出了预防措施。     

PETROLEUM SYSTEMS OF THE WEST IBERIAN MARGIN: A REVIEW OF THE LUSITANIAN BASIN AND THE DEEP OFFSHORE PENICHE BASIN

The relatively well‐studied Lusitanian Basin in coastal west‐central Portugal can be used as an analogue for the less well‐known Peniche Basin in the deep offshore. In this paper the Lusitanian Basin is reviewed in terms of stratigraphy, sedimentology, evolution and petroleum systems. Data comes from published papers and technical reports as well as original research and field observations. The integration and interpretation of these data is used to build up an updated petroleum systems analysis of the basin. Petroleum systems elements include Palaeozoic and Mesozoic source rocks, siliciclastic and carbonate reservoir rocks, and Mesozoic and Tertiary seals. Traps are in general controlled by diapiric movement of Hettangian clays and evaporites during the Late Jurassic, Late Cretaceous and Late Miocene. Organic matter maturation, mainly due to Late Jurassic rift‐related subsidence and burial, is described together with hydrocarbon migration and trapping. Three main petroleum systems may be defined, sourced respectively by Palaeozoic shales, Early Jurassic marly shales and Late Jurassic marls. These elements and systems can tentatively be extrapolated offshore into the deep‐water Peniche Basin, where no exploration wells have so far been drilled. There are both similarities and differences between the Lusitanian and Peniche Basins, the differences being mainly related to the more distal position of the Peniche Basin and the later onset of the main rift phase which was accompanied by Early Cretaceous subsidence and burial. The main exploration risks are related to overburden and maturation timing versus trap formation associated both with diapiric movement of Hettangian salt and Cenozoic inversion.     

外保温墙体裂缝产生的原因与控制

根据建筑物外墙保温层产生裂缝的主要现象,分析了其裂缝发生的原因,以及裂缝对建筑物结构主体可能造成的危害,按照外保温墙体裂缝产生的原理及其抗裂机理,结合工程实践,提出了外保温墙体裂缝的设计原则和控制措施。