Banach空间中完全齐次基的一些特性

给出了ｎ－平均规范分块基序列的定义，得到了Ｂａｎａｃｈ空间中完全齐次基的一些等价条件。     

白岩尾矿库初期坝Ⅲ号冲沟斜坡稳定性评价及防渗处理

因变更了初期坝轴线，Ⅲ号冲沟斜坡在清基中发现了隐蔽发育于中厚层白云岩中的卸荷裂隙，裂隙宽度０．１０～１．００ｍ，深度３．２０～４．５０ｍ。根据勘探及试验资料，进行了斜坡稳定性和渗透性评价。结论得出：（１）在天然状态下，Ｋ＞１，斜坡稳定；（２）在饱水状态下，沿ｍ２滑移结构面，Ｋ＜１，斜坡不稳定；（３）斜坡浅层管道式渗透作用，将产生渗透破坏。建议采用团结——帷幕溉浆作防渗处理。     

多级开关控制流量集成阀块的研制与试验分析

本文介绍了作者开发、研制的液压电梯专用开关控制流量集成阀块（简称ＨＥＶ阀块）的工作原理，研究了开关控制先导液桥对流量阀的控制机理，分析了外载变化对控制性能的影响，并利用ＣＡＴ技术对阀块的试验数据进行了处理与分析。     

试验机稳定加载条件的修正及伺服控制的本质

本文通过对试验机-试样系统的分析,认为试验的稳定加载条件不仅仅取决于试验机和试样的刚度(K_m+K_r),而且取决于试验机活塞(端部)的位移速率.具有反馈系统的伺服试验机,正是通过对活塞位移U_q的控制来谐调刚度(K_m+K_r)的变化,从而达到控制应变速率,以保证加载过程的稳定.     

对双线铁路开行组合列车中间越行点改建问题的探讨

本文论述了目前我国开行以组合列车为主的重载运输中中间越行点改建的若干重要问题,其中包括设置越行点的必要性、影响越行点数量和设置地点诸因素的分析、越行点股道有效长的确定、越行点图型的选择以及越行点合设与分设等问题。     

On emplacement ages of lamproites in Zhenyuan County, Guizhou Province, China

Emplacement ages of lamproites that comprise lamproite and olivine lamproite in Zhenyuan County, Guizhou Province, China, have been constrained by the whole-rock Sm-Nd and Rb-Sr isochron methods and the whole rock K-Ar method. Intrusive activities of lamproites in the Sinantang area of Zhenyuan County, Guizhou Province, took place during the Late Cambrian, as indicated by the Sm-Nd isochron ages ( t ) = (503 ± 17) (2σ) Ma and by the Rb-Sr isochron ages ( t ) = (501.2 ± 4.6) (2σ) Ma. Intrusive activities of olivine lamproites at the Maping with Ⅱ-type diamond and Xitou in Zhenyuan County, Guizhou Province, took place from the Late Cambrian to the Early Ordovician, as evidenced by the Sm-Nd isochron ages ( t ) = (502 ± 27) (2σ) Ma and by the Rb-Sr isochron age ( t ) = (502 ± 27) (2σ) Ma. This suggests that the upwelling hot materials derived from the deep mantle were emplaced from the Late Cambrian to the Early Ordovician (503-497 Ma), while the time terminal of cooling of the geothermal event of magmatism-tectonism probably was at 442.64-435.54 Ma, as dated by the whole rock K-Ar method.     

禹城洼陷生烃潜力研究

目的 评价禹城洼陷的生烃潜力，以指导下一步勘探。方法利用烃源岩分析数据对禹城洼陷的生烃潜力进行研究和评价，利用包裹体测温等分析资料对影响烃源岩发育和分布的因素进行分析和总结，利用生物标志化合物指标（C29S／S＋R）对生油门限进行了重新认识和探讨。结果禹城洼陷烃源岩发育较差、分布不均，总体上处于未熟一低熟阶段；其主要影响因素是异常高压带的分布和火成岩的入侵；本区生油门限应在3500m以下。结论禹城洼陷下第三系生烃潜力不足。     

A mathematical model for solid liquid and mass transfer coupling and numerical simulation for hydraulic fracture in rock salt

Thehydraulicfracturingtechniqueiswidelyused intheoilengineering,naturalgasexploiting,under groundheatextractingandothermineralresources mining,etc.withwelldevelopedhydraulicfracture modelsforordinaryrocks[1—3].Inthefieldofsolu tionminingofsaltdeposit,thistechniqueisusedto producefracturealongtheplanelayerofthedeposit,thustoconnecttheinjectionandtargetwells[4,5].However,duetothespecialphysicalandmechanical characteristicsofrocksalt,executinghydraulicfrac tureinrocksaltdepositisdifferentfromtha…     

低渗透岩石非饱和非Darcy渗流机理

为了探讨低渗透岩石非饱和非D arcy的机理,以毛管模型为基础,通过对流体非饱和系列流动状况的运动分析,相应推导得出流体非饱和渗流的毛管模型,从理论上论证在微小尺度孔隙中流体自身的力学特性,以及与固体、气体的相互作用,指出毛管压力与边界层的存在,是导致流体非D arcy渗流现象的一个主要原因。研究这些因素对渗流运动的影响机制,是探索低渗透岩石非D arcy渗流机理的一个重要方向。     

High-quality hydrocarbon source rock in the Paleogene sequence of the Ping Chau Formation, Hong Kong

Although petroleum exploration is being conducted in the Hong Kong region, high-quality hydrocarbon source rocks have never been found in this area. The Ping Chau Formation is only Mesozoic-Cenozoic sedimentary rock exposed in Hong Kong and its surrounding areas. The hydrocarbon source rock of the Ping Chau Formation is very rich in organic matters, which has an average total organic carbon (TOC) of 1.9% and chloroform bitumen ““A““ range from 0.14% to 0.24%. The total hydrocarbon content varies from 880 to 1800 ppm and the transformation ratio is specific from 5 to 9. The index of pyrolytic hydrogen is up to about 600 mgHC/gTOC. These data demonstrate the characteristics of the high-quality hydrocarbon source rock. The lamalginite is the major maceral of the source rock of the Ping Chau Formation, and geochemical characteristics also suggest that the organic materials of the source rock are of type I and type Ⅱ1, with abundant gammacerane, γ, β-caro-tane and C24 tetracyclic terpane, which indicate that it was formed in the salt water and brackish water sedimentary environment, and the source rock has evolved into a mature phase. The organic inclusions are found within calcite veins in cracks of the source rock, indicating that hydrocarbon has been generated and a secondary migration has happened. The source rock in the Ping Chau Formation is about 200-300 m thick, thus having considerable hydrocarbon potential. The discovery of the high quality hydrocarbon source rock in the Ping Chau Formation will certainly provide insight on hydrocarbon resource exploration in the South China Sea area.