THE SHIELD WITH LIQUID SUPPORT AT THE FACE

LO SCUDO CON SOSTEGNO LIQUIDO DEL FRONTE

In difficult noncohesive terrain with water under pressure, traditional tunnelling methods have some serious disadvantages which cannot always be completely overcome by the use of the bentonite shield, even under pressure. But the shield technique when combined with the system of liquid support at the attacking face, provides new possibilities for satisfactory drilling in very difficult terrain. This article outlines the basic principles of such a method, and describes some recent experience of its application in Japan, England and Germany. /TRRL/

  • Corporate Authors:

    Casa Editrice la fiaccola

    Via Carlo Ravizza 62
    Milano,   Italy 
  • Authors:
    • Alteri, F
    • Pourger, A C
  • Publication Date: 1978-2

Language

  • Italian

Media Info

  • Features: References;
  • Pagination: p. 184-188
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00184328
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Dec 29 1978 12:00AM