Search for dissertations about: "soil grouting"

Showing result 1 - 5 of 9 swedish dissertations containing the words soil grouting.

2. 1. Rheology of cement grout  : Ultrasound based in-line measurement technique and grouting design parameters

   Author : Mashuqur Rahman; Stefan Larsson; Ulf Håkansson; Olafur Wallevik; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; grouting; grouting design; cement grout; Bingham number; shear rate; plug flow; thixotropy; yield stress; in-line rheology; UVP PD; Flow-Viz; viscosity bifurcation; aging; off-line rheometry; pump characteristics; Civil and Architectural Engineering; Byggvetenskap;

   Abstract : Grouting is performed in order to decrease the permeability and increase the stiffness of the material, especially soil and rock. For tunnelling and underground constructions, permeation grouting is done where cement based materials are pumped inside drilled boreholes under a constant pressure, higher than the ground water pressure. READ MORE

4. 2. Rock grouting design: Rheological aspects and radial flow visualizations with ultrasound

   Author : John Shamu; Stefan Larsson; Ulf Håkansson; Liangchao Zou; Chadi El Mohtar; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cement grouts; grouting; yield stress fluid YSF ; thixotropy; critical shear rate; radial flow; wall slip; Bingham model; Cementbaserade injekteringsmedels; injektering; icke-Newtonska vätskors; tixotropi; kritisk deformationshastigheten; radiella strömning; glidning; Bingham modell; Jord- och bergmekanik; Soil and Rock Mechanics;

   Abstract : The rheological properties of cement-based grouts play a crucial role indetermining the final spread in grouted rock formations. In rheological terms,cement grouts are known to be complex time-dependent yield stress fluids,but their steady flow behavior is often described by the simple Binghamconstitutive law. READ MORE

5. 3. Grout Development and Methods for Remedial Grouting of Embankment Dams

   Author : Johan Lagerlund; Jan Laue; Peter Viklander; Markus Aufleger; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geoteknik; Soil Mechanics;

   Abstract : An embankment dam can be damaged by internal erosion. During this process, the soil material erodes and is transported out of the dam structure. Some common types of damage due to internal erosion are piping, less dense soil zones, and zones where the fine material has been washed out. READ MORE

6. 4. Penetrability due to filtration tendency of cement based grouts

   Author : Daniel Eklund; Håkan Stille; Gunnar Gustafson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Construction engineering; grout; grouting; penetrability; filtration tendency; Byggnadsteknik; Building engineering; Byggnadsteknik;

   Abstract : Grouting as a method of strengthening and sealing rock, soil and concrete is widely used. The possibilities of sealing structures are of great importance from both an economical and environmental point of view. The cost of grouting has in certain projects been as high as the cost for the blasting and excavation of the tunnel. READ MORE

7. 5. Design of grout curtains under dams founded on rock

   Author : Suihan Zhang; Fredrik Johansson; Johan Funehag; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Grout curtains; Rock grouting; Dams; Erosion; Infilling materials in rock fractures; Injekteringsridåer; Berginjektering; Dammar; Erosion; Sprickfyllnadsmaterial; Soil and Rock Mechanics; Jord- och bergmekanik;

   Abstract : Grouting has long been implemented as a ground improvement technique to reduce the seepage through the rock mass. Grout curtains are usually constructed under dams as a barrier to prevent leakage from the reservoir. So far, the grout curtains under dams have mainly been designed by using an empirical design approach. READ MORE