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  • [News] Trenchless directional drilling construction process-1

    Trenchless directional drilling construction process-1 The directional drill crosses and controls the direction. In the process of pilot hole drilling, the wireless direction control system is used, and the ground beacon system is arranged on the center lines of both sides of the entry and exit poin

    2020-09-25
  • [News] Requirements for supporting a lubricating medium

    Requirements for supporting a lubricating mediumThe requirements for supporting a lubricating medium can be calculated according to the law of friction.Summary of friction lawIn addition to rolling friction, which is not discussed here, friction can be divided into:A) Adhesive friction (same as stat

    2020-09-22
  • [News] Mud technology in trenchless construction

    Mud technology in trenchless constructionIf the blade foot is slightly larger than its size corresponding to the outer diameter of the pipe, it is possible to reduce the frictional resistance of the outer wall of the pipe. This prevents the upper layer from directly pressing on the tube body. As lon

    2020-09-17
  • [News] Why should we formulate the "Code" for pipeline trenchless engineering

    Why should we formulate the "Code" for pipeline trenchless engineeringNow the use of trenchless is more and more widespread, so the problems that arise are increasing day by day. There is no corresponding standard specification for pipeline trenchless engineering, so the current pipeline trenchless

    2020-09-14
  • [News] Trenchless technology is classified according to construction technology

    Trenchless technology is classified according to construction technologyTrenchless technology can be divided into: directional drilling pipe laying technology, escape shuttle pipe laying technology, pipe jacking tunneling and laying technology, pipe jacking pipe laying technology.Among them, the adv

    2020-09-11
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