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oa Civil Engineering = Siviele Ingenieurswese - Horizontal directional drilling and its application

Volume 13, Issue 4
  • ISSN : 1021-2000

 

Abstract

Extracted from text ... HORIZONTAL DIRECTIONAL DRILLING (HDD) is a construction procedure that has been employed internationally for some 25 years. It describes a specific form of trenchless technology that, by definition, enables a variety of underground ducts and pipes to be installed with minimum disruption to the ground surface. The technique combines the steering technology developed in the oil industry with boring methods employed for conventional horizontal trenchless crossings. It requires little, if any, excavation to install pipes and conduits in a range of lengths, sizes and depths along pre-assigned vertical and horizontal alignments. The technique has gained worldwide acceptance and is considered an ..

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/content/civeng/13/4/EJC25266
1971-04-01
2016-12-10

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