Sökning: "Grouting"

Visar resultat 16 - 20 av 42 avhandlingar innehållade ordet Grouting.

1. 16. Grouting prediction systems for hard rock : based on active design

   Författare :Thomas Dalmalm; KTH; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

3. 17. Model for prediction of grouting results : spreading, sealing efficiency and inflow

   Författare :Magnus Eriksson; KTH; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

4. 18. Rock mass response during high pressure grouting

   Författare :Rikard Gothäll; Håkan Stille; Johan Andersson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Building engineering; Byggnadsteknik;

   Sammanfattning : The sealing of hard jointed rock by grouting involves several complicated mechanical systems. The result is a complex coupled system of hydro- logical and mechanical precesses. In order to determine the higher order effects of the resulting system the fracture deformations must be assessed. LÄS MER

5. 19. Chemical Rock Grouting. An Experimental Study on Polyurethane Foams

   Författare :Helen Andersson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Grouting is used to change the physical characteristics of concrete, soil and rock. The changes are usually related to permeability and/or strength. Although the most widely used grout for sealing of rock masses is cement suspension, there are certain conditions where polyurethane grout is used as a complement. LÄS MER

7. 20. Rock Mechanical Effects of Cement Grouting in Hard Rock

   Författare :Staffan Swedenborg; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : A pre-grouted rock mass is subjected to stress re-distribution as the tunnel excavation progresses. The strength and deformation characteristics of grouted rock joints are therefore of interest in any effort to predict the rock mechanical behavior as well as the failure of sealing in a grouted rock mass. LÄS MER