石臼坨凸起明化镇组下段油气藏富集规律探讨

石臼坨凸起油气富集程度受岩性-构造控制,油源,储层,运移是影响油气富集条件的最主要的影响因素;通过油源对比、储层发育特征及运移能力分析,结果表明以渤中凹陷烃源岩为油源的石臼坨凸起南侧、构造高部位、断砂耦合长度较长的砂层段,一般含油丰度、油柱高度较高,油气较富集,石臼坨凸起南侧断层比较发育,砂体纵向叠合性好的部位是较有利勘探区。     

钪（Ⅲ）的反相萃取柱色层新体系研究及应用

本文设计出钪（Ⅲ）的反相萃取柱色层新体系并加以应用。该新体系以聚四氟乙烯－７０１为载体，磷酸三丁酯（ＴＢＰ）为固定相，在１０ｍｏｌ·Ｌ￣（－１）盐酸中定量萃取层析钪（Ⅲ），用１０ｍｏｌ·Ｌ（－１）盐酸淋洗杂质元素，４ｍｏｌ·Ｌ（－１）盐酸解脱钪，经二甲酚橙光度法测定其回收率可达１００％。本法简便快速，选择性高，分离效果好，能用于岩石、矿物等物料中钪的定量分离、富集及测定。     

An index for describing the core-stone shape in weathered columnar joints

The shape of core-stones remained in the weathering basalt column is an index to classify its weathered degree. In this paper, a roundness index (RI) like the box dimension using in fractal theory, was employed to quantitatively measure the shape of core-stone in various weathering grades. The rounded core-stone that is weathered seriously has a smaller RI value. According to the value of RI, the five classes shown in the Russell–Taylor–Pettijohn chart for visually classifying grain shape is available to approximately determine the weathered grades of core-stones remained in the basalt column in Taiwan. A slump test is preliminarily tested to show the difference in repose angle of a stability slope assembled by the grains in a similar shape. The collection of angular core-stones those are less weathered (with a higher RI value) indeed reveals a greater repose angle.     

淮南寒武纪岩溶陷落柱发育特征及导水性分析

1996年任楼煤矿发生的陷落柱特大突水事故，使“淮南不存在岩溶陷落柱”的认识得到了质疑。通过初步调研，在孔集矿南部的孙家大山一带发现出露于地表的岩溶陷落柱，而谢桥矿煤经三维地震勘探也探测出了发育于寒武纪灰岩中的两个岩溶陷落柱。因其岩溶陷落柱的发育层位、充填物质与华北煤田奥陶纪岩溶陷落柱构成明显的对比。导致了其水文、工程地质特征的特殊性。     

Study of total column atmospheric aerosol optical depth,ozone and precipitable water content over Bay of Bengal during BOBMEX-99

The spatial and temporal variations in aerosols and precursor gases over oceanic regions have special importance in the estimation of radiative forcing parameters and thereby in the refinement of general circulation models. Extensive observations of the columnar aerosol optical depth (AOD), total column ozone (TCO) and precipitable water content (PWC) have been carried out using the on-line, multi-band solar radiometers onboard ORV Sagar Kanya (Cruise # SK 147B) over Bay of Bengal during 11th–28th August 1999. Aerosol optical and physical properties (optical depth and angstrom parameter) have been estimated at six wavelengths covering from UV to NIR (380–1020 nm) while TCO and PWC have been determined using the UV band around 300 nm and NIR band around 940 nm, respectively. Added, concurrent meteorological and satellite observations during this field phase of BOBMEX-99 have been utilized to investigate spectral-temporal variations of AOD, TCO and PWC in marine environment. The results indicate lower AODs (around 0.4 at characteristic wavelength of 500 nm) and size distributions with abundance of coarse-mode particles as compared to those aerosols of typical land origin. An interesting result that is found in the present study is the significant reduction in AOD at all wavelengths from initial to later part of observation period due to cloud-scavenging and rain-washout effects as well as signature of coastal aerosol loading. The clear-sky daytime diurnal variation of TCO shows gradual increase during post-sunrise hours, broad maximum during afternoon hours and gradual decrease during pre-sunset hours, which is considered to be due to photochemical reactions. The diurnal variation curve of PWC showed maximum (~ 4 cm) during morning hours and gradual decrease (~ 3.5 cm) towards evening hours, which are found to be greater as compared to typical values over land. Another interesting feature observed is that although the PWC values are very high, there was no proportionate or appreciable enhancement in AOD—a feature that can be utilized to infer composition of aerosols over the study region.     

导水岩溶陷落柱堵水塞建造技术

以东庞矿特大陷落柱突水快速封堵工程为例,分析了陷落柱空间结构特征及突水水文地质条件,提出了对突水陷落柱进行快速截水恢复生产和注浆封堵根治水患两个阶段的治理方案。根据陷落柱的空间特征及工程地质条件,确立了分序分段注浆工艺,并且给出了不同阶段注浆工艺的控制标准;建立了注浆钻孔分序分段注浆的吸水率结束标准;提出了在井下疏放堵水塞之上的陷落柱残留水,计算补给水量,定量评价堵水效果的检验方法;采用先进的螺杆钻具定向、随钻测斜与防斜纠偏钻探工艺,使钻进方向始终处于受控状态,确保钻机按照设计参数施工。     

原油中萘系物柱色谱快速分离技术及其初步应用

发展了一种易于操作、经济成本低的原油中萘系物的快速分离技术.色谱质谱检测结果表明,该技术能使原油中萘系物组分得到完整的分离,解决了总芳烃组分色谱质谱分析中由于共溢出现象严重导致的多取代甲基萘参数难以准确获取问题,并为萘系物单分子碳同位素的正确测试奠定了基础.该方法用量少,分离精度高,不仅适用于原油样品,同样适用于其他沉积物有机质样品.作为一个应用实例,对塔里木盆地轮南地区下古生界含油气系统典型原油烷基萘的分布特征进行了初步研究.     

宽断面预留墩柱沿空留巷墩柱支护阻力计算研究

针对常规沿空留巷技术在工作面回采速度和采空区作业危险性方面存在的局限性,提出了一种新型沿空留巷技术——宽断面预留墩柱沿空留巷技术,该技术的实施步骤为：首先掘进一条宽断面巷道,随后在巷道断面中心安设一排墩柱,墩柱的一侧为本工作面的运输巷,另一侧作为下一工作面的轨道巷,墩柱作为巷旁支护体使下一工作面的轨道巷保留下来以供使用。结果表明：在掘巷时设立墩柱能够维持宽断面巷道围岩的稳定,同时避免了传统沿空留巷在工作面后方作业,安全性得到了较大提高。在巷道掘进阶段,采用二次成巷技术和锚杆-墩柱联合支护技术可保证巷道的稳定;在留巷阶段,高强度的墩柱对沿空留巷顶板的切断和支撑有较好的控制效果,当墩柱间距为1.5 m时,切顶所需墩柱阻力为21.53 MPa,小于墩柱抗压强度（42 MPa）,墩柱承载力满足沿空留巷要求,顶底板相对移近量为652 mm,墩柱压缩量最大值为164 mm,墩柱能起到一定让压作用,同时对顶板有较好的支撑,可以很好地适应沿空留巷顶板活动规律,现场应用效果良好。     

Collapse simulation of a four‐story steel moment frame by a distributed online hybrid test

The collapse of a one‐bay, four‐story steel moment frame is simulated in this study by the proposed peer‐to‐peer (P2P) Internet online hybrid test system. The typical beam hinging mechanism, which is ensured by a strong‐column, weak‐beam design, is reproduced. The plastic hinges at the column bases are taken as the experimental portions, while the superstructure is analyzed numerically by a general‐purpose finite element program. The implicit plastic rotations of the two column bases are treated as boundary displacements. In order to account for the complex behavior of the column bases, the P2P system is modified to use the secant stiffness during iterations, and the physical specimens are designed such that the plastic hinge behavior can be obtained. For this study, the three substructures are distributed to different locations. A large ground motion is repeatedly imposed until the column bases lose their capacity to sustain the gravity load. As a result, significant deterioration is observed at both column bases. The proposed P2P system is thus demonstrated to be able to accommodate multiple‐tested substructures involving unstable behavior. The results suggest that the P2P Internet online hybrid test system provides a reliable means of studying structures up to collapse. Copyright © 2008 John Wiley & Sons, Ltd.     

高强混凝土框架柱的地震损伤模型

本文首先讨论了现有的几种地震损伤模型及其特点,然后计算出试验框架柱累积滞回耗能随加载循环水平的变化,分析和讨论了轴压比、箍筋形式、配箍率、纵向配筋率、混凝土强度等级以及剪跨比对累积滞回耗能的影响。根据现有的损伤模型,对试验框架柱的损伤指数进行了分析比较,给出了符合高强混凝土框架柱和普通混凝土框架柱的地震损伤模型。根据损伤指数随加载循环水平的变化规律,分析和讨论了剪跨比、轴压比以及配箍率对损伤的影响。最后通过对各地震损伤模型的比较分析,提出了高强混凝土框架柱的地震损伤模型。