Search for dissertations about: "Grouting design"

Showing result 1 - 5 of 16 swedish dissertations containing the words Grouting design.

  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. On the Use of Engineering Geological Information in Rock Grouting Design

    Author : Sara Kvartsberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Observational method; Transmissivity distribution; Grouting; Design class; Geological prognosis; Fractured rock; Hydraulic domain; Tunnels;

    Abstract : Underground rock construction is dependent on appropriate assessments of the geological settings at the project site. Relevant geological information must be collected, interpreted and communicated clearly with the aid of engineering geological prognoses. READ MORE

  5. 3. Drip Sealing Grouting of Tunnels in Crystalline Rock: Conceptualisation and Technical Strategies

    Author : Christian Butron; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; icicle formation; drip sealing; unsaturated flow; rock fracture; dripping.; channels; crystalline rock; design; Grouting; ice growth; evaluation;

    Abstract : A conceptual model of the groundwater hydraulic conditions around the tunnel contour in ancient brittle crystalline rocks has been developed and verified. The general aim has been to reach an understanding of the groundwater conditions in and close to the tunnel roof where dripping takes place and to propose technical and practical strategies for waterproofing. READ MORE

  6. 4. Grouting of Fractured Rock with Silica Sol; Grouting design based on penetration length

    Author : Johan Funehag; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Grouting; hydraulic test; sand column; propagation; penetration length; pipe flow; aperture; transmissivity; colloidal silica; silica sol; rheology; gelling liquids; field study;

    Abstract : ABSTRACTRecent grouting projects in Sweden have concentrated on the grout itself. The only grout normally used in Sweden is cement-based. During the past 10 years, the acceptable flow of water into tunnels has been reduced significantly. The current requirements mean that an average fracture aperture of around 0. READ MORE

  7. 5. Grouting prediction systems for hard rock : based on active design

    Author : Thomas Dalmalm; KTH; []
    Keywords : ;

    Abstract : .... READ MORE