齐大山铁矿北采边坡治理稳定性分析

在充分认识齐大山铁矿北采下盘滑坡特征、工程和水文地质特征的基础上，用有限差分数值法(FLAC)和极限平衡法(SLOPE2000)对滑坡治理的多个方案进行了稳定性综合分析评价，从而优化出治理方案。     

SLOPE/W在某露天煤矿采掘场边坡稳定性分析中的应用

某煤矿采掘场非工作帮边坡为软岩高边坡,为分析边坡是否存在潜在安全隐患而影响施工进度及施工安全,进行了非工作帮边坡的稳定性分析。采用Geo-studio软件中的Slope/W模块建立了边坡的计算模型,并用Bishop法和Morgenstern-price法对暴雨工况和暴雨叠加地震工况进行计算,得出边坡的稳定性系数。推测的滑面计算结果与边坡稳定性评价的标准进行对比,发现计算结果与现场勘察后预测结论基本一致。该边坡整体稳定性为基本稳定。更多还原     

37—THE WRINKLING AND BENDING OF FUSIBLE INTERLININGS

A series of apparel fabrics were bonded both to a cotton base cloth and to a worsted base cloth. The fabrics were then wrinkled by the AKU tester under wet and standard atmospheric conditions, and their wrinkle severity was determined by means of the Sivim Wrinklemeter. Buckling and cantilever tests were also made, and the wrinkling behaviour and bending performance were compared.     

基于SLOPE/W与模糊评判的岩质边坡稳定性分析对比研究

边坡稳定性分析方法有很多,主要分为定性分析法和定量分析法两类.结合某工程实例,分别采用GEO-SLOPE软件包中的SLOPE/W模块和模糊评判两种方法对该岩质边坡的稳定性进行分析研究.     

Microstructure and properties of semisolid hypereutectic high chromium cast iron prepared by slope cooling body method

Abstract

To improve the toughness of hypereutectic high chromium cast iron, the morphology of the primary carbides were improved by the slope cooling body method, a semisolid forming process. The semisolid specimens were prepared under different forming techniques, and the microstructure, impact toughness and wear resistance were studied. The results indicate that the morphology of primary carbide is improved, impact toughness initially increases then remains constant as the semisolid forming temperature increases, impact toughness was improved, but wear resistance was reduced.     

30—THE INFLUENCE OF ORIGIN ON THE STRESS–STRAIN RELATIONS OF WOOL FIBRES

Stress–Strain data for wool fibres of different origin are presented, the tests having been made under different moisture conditions. Small differences exist between wool fibres from primary and secondary follicles from the same animal, the secondary being easier to stretch both initially and finally under wet conditions. However, the relative yield slope is markedly higher for secondary than for primary fibres. Differences exist between and within breeds in the initial modulus, the stress at 15% extension, and the slopes of the curves in the yield and post-yield regions.     

露天坑废石尾砂混排边坡稳定性研究

金属矿山尾砂出产率很高,合理利用尾砂材料是一项艰巨的任务。利用尾砂干堆充填露天坑可实现无尾矿外排。利用软件SLOPE/W极限平衡法原理,模拟废石、尾砂混合排放的边坡,以得出边坡稳定系数较为合理的边坡形式。分别从水平和倾斜混合排放中各材料排放厚度和坡度的不同,来分析合理的废石、尾矿砂堆放方案。得出结论：废石、尾矿砂分层混合堆放的边坡稳定性高于相同情况下单一废石或单一尾砂堆放的边坡;边坡坡角在35°~45°较为合理,且废石和尾矿砂堆放的理想厚度比为4∶1。采取多传感器与无线传输技术进行边坡稳定性监测,并设定预警值,为利用露天坑排尾提供了保障。     

GEO-SLOPE在贵阳大坝地区地下水模拟中的应用

数值模拟方法是评价地下水水质、模拟自然界一些水文地质过程中发生和发展的主要手段之一.GEO-SLOPE是目前国际上比较盛行的二维地下水流和溶质运移模拟评价的标准可视化软件,可进行水质质点的向前、向后示踪的流线模拟研究.应用GEO-SLOPE软件,模拟贵阳大坝地区地下水流情况,取得比较满意的结果.所建数学模型能较好地反映当地的实际水文地质条件,运用水质模拟,可在一定程度上预测大坝地区地下水水质的变化.     

基于极限平衡理论的边坡稳定性分析方法对比研究

详细阐述了极限平衡理论在边坡稳定性分析中的基本原理。着眼于边坡安全系数的分析计算,系统总结了边坡稳定性分析软件SLOPE/W中基于极限平衡理论的几种分析方法的基本假设、计算原理、内在联系及方法的局限性,并运用这几种方法对同一案例进行了稳定性计算,对比分析了相关计算结果。最后针对极限平衡法的局限性提出了改进措施。