Experience with the real time grouting control method
Artikel i vetenskaplig tidskrift, 2009

A new concept of real time grouting control method is described by which grout penetration and grouting control are made applicable in real time by applying theories for grout spread. The stop criterion with this method can be related to achieved grout spread, and grouting may be considered complete when the grout penetration for the smallest fracture to be sealed is above a predetermined target value, or before the grout penetration for the largest fracture aperture reaches a certain maximum limiting value. It might also be possible by online monitoring of the process to predict the course of the grout spread and flow and to analyse the risk of uplift and jacking. Four tunnel projects in Sweden are presented in the paper. These references indicate that the real time grouting control method may be applicable to real grouting design and control.

grouting control

prediction of grout flow

grout penetration

flow dimension

Författare

Björn Stille

Chalmers, Bygg- och miljöteknik, Geologi och geoteknik

Håkan Stille

Gunnar Gustafson

Chalmers, Bygg- och miljöteknik, Geologi och geoteknik

Shinji Kobayashi

Geomechanik und Tunnelbau

1865-7362 (ISSN)

Vol. 2 5 447-459

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