潜孔

• Yg - 80a construction drilling rig is a full hydraulic operated top drive power head drill . it is used to drill heavy duty pretension anchor hole at side slope of water power station , railway or highway projects , as well as drainage holes
  Yg - 80a型锚固工程钻机是在yg - 80钻机基础上研制的，科学分配钻机性能参数，使钻机更适合岩石潜孔锤钻进跟管钻进，同时兼顾土层合金回转钻进螺旋钻进工艺。
• The foaming dth hammer is a new technology method and used as a drilling technique to deal with the special nature geography and complicate strata conditions which transforms the working medium of common dth hammer from the one fluid ( air ) to two - phase fluid compression foam , and uses the foam as motive medium to work
  摘要泡沫潜孔锤是将普通潜孔锤的工作介质从单一流体（空气）变成两相流体的压缩泡沫，并以泡沫作为动力介质驱动潜孔锤工作的新型工艺方法。
• Under the function of big pressure and dynamic load , the grains may be moved which may cause the soil body distortion . at present , the relatively ripe methods of drill in gravel layer are mostly double - wall drill pipe reverse circulation drilling , auger stem breast wall drilling and down - the - hole hammer follow down drilling
  论文根据jsl ? 30型砾石钻机潜孔锤同心跟管钻具结构,采用程序计算得到了钻杆内各深度处压力分布、钻头压力降、环形空间压力分布及空气流速分布。
• Wdtf is the manufacturing base for geotechnical drilling tools of cge . its main products are drilling tools for geological and engineering drilling , including wireline drilling tools , pneumatic downhole hammers , downhole drilling motors , synthetic diamond and its products , tungsten carbide and its products , various drilling pipes and tools . all products are reliable in quality , stable in performance and reasonable in price
  无锡钻探工具厂为中装集团勘探和工程施工用钻具的生产基地，主要生产各种地质勘探钻进用钻具和工程施工用钻具，包括以绳索取芯工具系列风动潜孔冲击器系列螺杆钻具系列为代表的钻探工具人造金刚石及其制品各种牌号的型号的硬质合金及其制品各种钎杆钎具等。
• The second generation model b of j series hammers recently produced by the plant possesses the charactrics of larger impact energy , higher penetration speed ; compared with insert bits , the z type button bits have higher penetration rate and longer service life - with the backing of strong research force , its products are always of advanced structure and reliable quality
  越南的发展现状与改革开放初期的中国较相似。它有丰富的矿产资源，特别是铁矿藏量大，品味高，而且国内有100多家水泥厂，这对公司的潜孔钻机来说，是一个潜在的巨大市场。
• Since 1972 , j series hammers and various rock drll bits have been developed , among them two products have won the prices of the national science conferences and fourteen products obtained scientific and technical achievement prices from the metaillurgy , ministry . all the products have been widely used in metal , coal , and industrial mineral mines , hydroelectrie construction sites and sold to the foreign markets as well . cimr machinery plant is a department responsible for trial - producing , manufacturing and marketing the research achievements of cimr , it has started manufacturing hammers and rock drill bits since 1958
  在与tanhoanganh公司主要代理建筑和工程机械总经理nguyen huy huyen的交流过程中，当我们谈到cs165智能整体型一体化液压潜孔钻机可钻凿100m深的孔，能把偏斜率控制在1 %以内，整个凿岩过程在定位完成后自动完成，并配备了双动力驱动系统时，他举起大拇指，大呼“ powerful
• This thesis preliminarily researched drilling technology of applying foaming dth hammer into hydrology and waterwell drilling beginning with analyzing foaming dth hammer ' s structure characteristics and working principle and joining together with the indoor experiment with respect to the fitting of drilling equipments , designing of grouting system , selecting of drilling program parameters and so on
  从分析泡沫潜孔锤的结构特点和工作原理出发，结合室内实验，在钻进设备的配套、灌注系统的设计、钻进规程参数的选择等方面，对泡沫潜孔锤应用于水文水井钻探的钻进工艺进行了研究。