膨胀混凝土在加固钻孔灌注桩中的应用

膨胀混凝土应用于钻孔灌注桩中，能够提高桩土效应、桩的承载力和混凝土强度，节约水泥用量。通过一工程实例证明，采用膨胀混凝土是解决钻孔灌注桩缺陷问题的一种有效途径。     

A New Method of Surveying Underwater Parts of Self Elevating Drilling Platform

It is a new method of surveying leg spuds of self-elevating drilling platforms to lift them out of water with the help of additional middle guide blocks. Its main advantages in comparison with other methods normally used up to now are: less expensive, time saving, no need for specially designated water area, direct visual observation, good reliability and safety. The working principle has been presented with the example of two platforms "Bohai No. 8" and "Bohai No. 10", to which the method was used. Also a comprehensive comparison with other methods in technological and economical aspects is given in the paper.     

A Modified Quasi-Static Method for CALM System Analysis

The quasi-static analysis method introduced by API RP 2P is well known and accepted as a very useful mooring analysis method. In the early design stage, this method is widely used for preliminary analysis and mooring parameter selection. However, the quasi-static method of API RP 2P is developed for single-floating-body condition, i. e., only one floating body is considered in the computation procedure. Difficulties arise when it is used for the analysis of a CALM system, which is comprised of two floating bodies (tanker and buoy). This paper presents an analysis procedure for a two-floating-body system based on the quasi-static procedure of API RP 2P with some modifications reflecting special characteristics of the CALM system. Finally, the analysis results of a CALM system are given to illustrate the use of this procedure.     

Metal concentrations and metallothionein-like protein levels in deep-sea fishes captured near hydrothermal vents in the Mid-Atlantic Ridge off Azores

The knowledge of metal contamination in deep-sea fishes living in the surroundings of hydrothermal vents is very scarce, along with the detoxification mechanisms that allow them to live near one of the most metal contaminated marine environments. Six deep-sea fish species, although not vent endemic were collected near three Mid-Atlantic Ridge (MAR) hydrothermal vents (Menez Gwen, Lucky Strike and Rainbow) and the gills, muscle and liver were selected for this study due to their importance in metal metabolism and storage. The concentrations of seven metals (Ag, Cd, Cr, Cu, Fe, Mn, and Ni) and a metal-related biomarker (metallothionein-like proteins–MTL) were assessed. Major differences in metal accumulation among fish species are related to their feeding habits and vent site of their capture. The liver and gills are in general the most important tissues for metal accumulation compared to the muscle, but tissue partitioning is very dependent on the fish species considered. Compared to other deep-sea fishes, fish capture in the vicinity of hydrothermal vents accumulates higher amounts of metals in general. However, MTL levels are not considerably different from what is found in commercial coastal fishes, and is poorly correlated with metal concentrations in the tissues. Therefore, MTL may not constitute one major detoxification system for deep-sea species living in the vicinity of three important MAR vent sites.     

蜀南地区飞仙关组高精度层序地层研究

针对四川盆地下三叠统飞仙关组层序地层存在多种不同划分方案,以高精度层序地层学理论与方法为指导,以蜀南地区飞仙关组台地相碎屑岩和碳酸盐岩为研究对象,以野外露头剖面、岩芯、钻井、测井、地震等资料为基础,综合应用岩性突变面、沉积相转换面、沉积物空间堆积样式的变化、早期成岩变化、电测井曲线特征以及地震反射特征等标志,识别出不同级次的11个层序界面,据此将本区飞仙关组划分为2个三级层序(TSQ1和TSQ2)和10个四级层序,其中TSQ1可细分出6个四级层序,TSQ2可再分出4个四级层序,并将其与传统地层单位进行对比:三级层序TSQ1和TSQ2分别对应于飞一段+飞二段地层和飞三段+飞四段地层。通过层序地层对比和层序地层格架的建立,指出这些层序在全区均具有良好的可对比性和等时性,每个层序均具有快速海侵到缓慢海退的特点,均由海侵体系域和高位体系域构成,未发现低位体系域和凝缩段。层序与储层关系的研究表明,四级层序Ⅲ和Ⅷ是台内鲕滩这种有利储集相带的主要发育层位,所形成的滩相鲕粒灰岩储层与高位体系域的向上变浅序列和早期暴露及其所导致的大气淡水淋溶改造有关,平面上集中分布于中东部地区。     

苏北盆地高邮凹陷侵入岩形成时期及成因机制探讨

通过对苏北盆地高邮凹陷的上、下两套侵入岩与断层的错断及其与构造运动强弱的关系、与油气成藏期的关系以及侵入岩的平面分布研究,提出了侵入岩的侵入时期为三垛期,而非盐城期。通过对晚白垩世以来苏北盆地各期构造运动及其伴生火山活动的分析,认为高邮凹陷侵入岩的成因主要由于晚始新世至渐新世末,该区发生了三垛运动,并发育一系列北东及北西向的断裂构造,导致了岩浆活动,并以侵入特征为主。     

二连盆地巴音都兰凹陷早白垩世构造岩相带特征及含油性

在系统观察岩心的基础上，从单井相分析入手，结合地震相和测井相模式，以及大量岩矿、粒度等分析化验资料，对巴音都兰凹陷下白垩统巴彦花群的物源方向、沉积体系、构造岩相带及含油性进行了研究。认为区内具有东、西两大物源区、五大水系控制着十一个砂体的平面展布，最终，划分了扇三角洲等五种沉积体系，总结出具平台型陡坡扇三角洲等六种构造岩相带，并着重对有别于典型单断箕状凹陷的三种构造岩相带的含油性进行了初步探讨。     

鄂尔多斯地区晚古生代沉积层序地层学与盆地构造演化研究

基于现代沉积学理论和层序地层学思想，在鄂尔多斯地区晚古生代岩相古地理展布及演化特征分析基础上，对该区晚古生代地层进行精确划分、对比和层序地层学研究。进而按其沉积物特征和充填层序特点将这一时期沉积盆地厘定为三种类型,了晚石炭世本溪期至早二叠世早期（太原期）的陆表海盆地及裂陷（坳陷）盆地、早二叠世山西期近海湖盆和中、晚二叠世石盒子期和石千峰期的内陆坳陷盆地，在不同阶段的盆地中，又可划分出若干次级盆地和演化阶段。     

鄂尔多斯地区晚古生代陆相沉积层序地层学研究

鄂尔多斯地区晚古生代陆相沉积占据了较长的时期，基于现代沉积学理论和层序地层学思想，本文从鄂尔多斯地区晚古生代沉积盆地的沉积特点出发，建立一套比较切合实际的层序地层划分方案，研究了该区晚古生代陆相沉积层序地层学，比较客观地反映了盆地沉积作用和构造演化历史。