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wedge
    STUDY ON THE OPTIMUM DISTANCE BETWEEN CUTTING SLOTS FOR WEDGE PICKS
    楔形截齿最佳截槽间距的研究
    In the construction of Ⅲ101 roadway in Haizi Coalmine,the blasting result and the embrasure utilization ratio have a good advance by using the wedge cutting and deep hole blasting technology,and produce substantial economical benefit.
    在淮北矿业集团海孜煤矿Ⅲ101回风巷中硬岩巷道掘进施工中,通过改变过去的浅孔多循环爆破作业方式,采用楔形掏槽和中深孔爆破技术,提高了炮眼利用率,爆破效果有了很大提高,产生相当可观的经济效益。
    APPLICATION OF WEDGE CUTTING IN HIGH LEVEL STOPES
    楔形拉槽法在高分段采场中的应用
    Developing design and produce of the new wedge rope-ring
    新型楔形绳环的开发研制
    Investigation into the Engineering Characteristics and Analysis on the Treatment of a Wedge Geological Structure
    某楔形地质结构体的工程特性研究与治理分析
    Introduces the ZZ6000/17/37A four columns strut shield type hydraulic pressure support unique fea- ture,specially elaborates that the wedge structure top-beam has the function and the use of the overall top- beam and the hinge top-beam.
    介绍了ZZ6000/17/37A型四柱支撑掩护式液压支架结构特点,论述了楔形结构顶梁具有整体顶梁和铰接顶梁的功能及作用。
    REINFORCEMENT OF A SLIPPINE WEDGE BODY OF FENGJIAYU IRON MINE
    冯家峪铁矿楔形滑动体加固
    ANALYSIS OF DYNAMIC STABILITY OF WEDGE DOUBLE SLIP PLANE AND ITS APPLICATION TO HARNESS OF TRUNCATED SLOPE ——An Example from Slope Slope in Shenfu-Dongsheng and Junggar Coal Fields
    楔形双滑面稳定性动态分析及其在削坡治理中的应用──以神府-东胜和准格尔煤田露天采场斜坡为例
    STABILITY STUDY OF 3-DIMENSIONAL WEDGE SLIDING BLOCKS IN OPEN-PIT SLOPE
    露天采场三维楔形滑坡体的稳定性研究
    Wedge impact blade of impact cutting coal machine was designed and its working process was stimulated.
    本文通过对冲击采煤机冲击刀具的设计及其参数的研究,设计了较为合理的楔形冲击刀具。
    The distribution of snubbers was discussed and studied. The results of experiments indicate that it is able to improve the availability of borehole and reduce the cost of drifting for using the new type double wedge cut technique. The results of study can give guidance to drift construction of the Level 1120 m in the Yongsha Phosphorite Mine.
    本文结合对国内外最新巷道掘进成果的学习和运用,采用不同的爆破掏槽技术,在白云岩巷道中进行爆破掘进试验,并对掏槽眼布置方式进行了试验研究和讨论,得出了在用沙坝矿1120中段白云岩运输巷道掘进时,采用双楔形掏槽技术,可提高巷道掘进的炮孔利用率,降低巷道施工成本,这项研究对用沙坝矿1120中段平巷施工具有实际指导意义。
    r The effect of the distance between cutting slots on the cutting specific energy consumption experimentally through cutting artificial coal samples with wedge picks is discussed in this paper.
    本文在实验室研究了楔形截齿截割人工煤样时截槽间距对截割比能耗等的影响,得出了在不同截割厚度时的最佳截槽间距。
    Owing to the reasonable choice of smooth bl asting parameters,and the use of straight wedge cut named“four steps drilling”in the construction of the main adit in Jianshan iron mine,the quality of blasting improved constantiy. A spoed of 124.5 meters per month of completed adit with bolt-shotcrete supporting was reached with quite good quality.
    尖山铁矿主平硐施工中,由于合理选择光面爆破参数,采用垂直楔形掏槽“四步打眼法”,不断改善爆破质量,以砂浆锚杆喷锚支护,使隧道日成巷达124.5m且质量优良。
    Numerous case studies are made on slopes to calculate the stability of slopes which have undergone potential arc failure and wedge failure.
    以大量的边坡实例为样本 ,利用该网络 ,对具有潜在圆弧形破坏和楔形破坏的边坡进行稳定性计算。
    In the paper the types of losing structure are summarized, that is single (double) slip-shear slide, wedge slide, burst slide, falling etc. , the interior and exterior reasons of disasters are analyzed, and the precautions are put forward from the aspects of engineering design, flow drainage, underground unwatering and real time monitoring of displacement.
    概述了新桥硫铁矿下盘高陡边坡体顺层单滑面剪切破坏、双滑面顺层剪切破坏、楔形破坏、溃曲破坏、崩塌等失稳的形式,分析了其发生灾变的内外原因,从工程设计、地表截排、地下疏干、实时位移监测等角度提出了边坡失稳变形的防范措施,为此类高陡顺层边坡条件下的开采安全提供参考。
    From 2003/9 to present. Spiralock nuts were applied on the well equipments,due to its unique design,adding a unique 30-degree wedge ramp at the root of the thread,successfully combats fastener loosening,achieved very good results and resolved well equipment safety problem.
    采用施必牢螺母后,由于它结构特殊,牙根处有一个30°楔形斜面,螺栓牙尖紧紧地顶在斜面上,具有独特的防松效果,经2003年9月开始使用至今,防松效果很好,有效地解决了井筒设备的安全问题。
 

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