Application of Hydro-Electric Effect Method to NDI of Piles

This paper presents briefly the essential principle and measurement process of hydro-electric effect method for NDI of piles. In the past three years, more than three hundred piles from twenty project sites inspected with method. Coring piles and comparing dynamic with static tests have proved that hydro-electric effect method is available for engineering with easy operation, quick inspection, and low costs.     

Seepage and Deformation of Fissured Rock Mass

Seepage law of fissured rock masses is presented in this paper. The Navier-stokes equation is demonstrated available to describe seepage law of rock masses by testing study. The dynamical seepage pressure in rock masses makes great effect on deformation of rock masses, results in opining of fissure and deformation of rock masses. The seepage and deformation of rock mass and dynamical seepage pressure is studied. The experimental results are checked with Bossiness formula, and are closed to the computing data.     

江西弋阳港口盆地林山组地层时代讨论

本文讨论了江西弋阳港口盆地林山组中的植物化石群。根据其组份特征,可确定该地林山组时代为早侏罗世中晚期,可与鄂西香溪组中下部的植物群对比。     

广东省海岸表层沉积物的重矿物特征及其与沉积环境的关系

广东省海岸表层沉积物中的重矿物近40种。含量较高的有钛铁矿、赤矿铁、磁铁矿、话石、电气石、黑云母和普通角闪石等。自生矿物主要为硬石膏、自然铜、黄铁矿及菱铁矿。这些矿物来自附近的母岩。根据物源性质不同,可将不同岸段重矿物区分为陆源矿物组合、近源-自生矿物组合和近源矿物组合三种:除物源控制外,重矿物含量、种类、形态特征及其在平面上的分布主要受沉积环境影响。据此,可将重矿物分布类型划分为河口型、海湾型和海岛型三类,且与上述不同矿物组合性质相对应。     

云南省潜在震源区综合统计判定之一

本文将云南省地震局多年来积累的关于中强震发生的地质构造、地貌、地球物理场、地形变等特征基础资料,用于Cora-3算法的模式识别,得出云南省潜在震源区的背景指标,结果是比较理想的。“投票”结果表明,80%的学习集D类对象仍被识别为D类,85%的学习集N类对象仍被识别为N类,控制试验的结果也表明识别结果是比较稳定和可靠的。     

Structural Styles of the Longmenshan Thrust Belt and Evolution of the Foreland Basin in Western Sichuan Province, China

The Longmenshan thrust system consists of two major groups of structural styles according to the depth of their involvement: basement thrusts-compressional fault blocks; fold-thrust system in the cover. In cross-section, the Longmenshan structural belt is divided into 5 zones. The propagation of the Longmenshan thrust system is piggy-back due to pushing at the early stage and overstep due to gravity sliding at the late stage. Balanced cross-sections and palinspastic reconstruction reveal that the total sliding displacement of the thrust system amounts to 120 km. The tectonic evolution of the Tethys domain in western Sichuan has experienced 5 stages: continental break-up; ocean-continent subduction ; continent-arc collision; orogenic thrusting; uplift of western Sichuan.     

吉林省大灰沟硅灰石岩的地质特征及成因讨论

吉林省大灰沟硅灰石岩赋存于泥质条带大理岩夹硅质条带大理岩层内，其直接围岩为大理岩。硅灰石岩呈似层状、透镜状及不规则状，组成矿物有硅灰石（９５％以上），少量透辉石、石榴石和方解石等。通过对硅灰石岩形成的地质条件、岩石学、矿物学、地球化学的研究和前人实验研究表明，本区硅灰石岩为区域变质热液作用形成的交代岩，其中的硅灰石属三斜硅灰石。华北地台北侧（槽区）的辽宁、吉林省境内发育多处硅灰石岩矿床和矿点，均呈透镜状、似层状产于各种硅质大理岩层内。大灰沟硅灰石岩就是其中之一，它是经区域变质热液作用形成的     

P507负载泡塑反相色层富集岩石中的稀土元素

研究了Ｐ５０７负载泡塑萃取柱色谱分离富集稀土元素的条件，并与Ｐ５０７萃淋树脂柱进行了对比；拟定了Ｐ５０７负载泡塑反相色属富集岩石中稀土元素的方法。在ｐＨ２．５介质中ＲＥＥ上柱率９８％，用５０ｍｌ２．５ｍｏｌ／ＬＨＮＯ３作洗脱液，ＲＥＥ总回收率达９６．１％，干扰测定的Ｔｈ，Ｕ，Ｔｉ，Ｚｒ，Ｈｆ等均被除法。方法用于标样分析验证，结果与推荐值相符。     

行业空间配置的线性对偶模式

本文研究诸如钢铁、有色金属、基本化工等一类行业的空间配置。由于韦勃、廖施的理论的一些前提条件在这里不存在，使得他们的研究方法显得十分不足。本文作者建立了具有对偶的线性规划模式来解决这类行业的空间配置。这一对模式的解给出了具有最小行业总成本的配置方案和与之相应的产品和原料在各个区位的影子价格。尤其是作者依据空间价格均衡找出了原模式与对偶模式的解之间的关系，这些关系是行业空间配置优化的效率条件。