Search for dissertations about: "aperture"
Showing result 1 - 5 of 196 swedish dissertations containing the word aperture.
-
1. Aperture effects in interferometry : with application to spectroscopy and metrology
Abstract : .... READ MORE
-
2. The effect of scale on the morphology, mechanics and transmissivity of single rock fractures
Abstract : This thesis investigates the effect of scale on themorphology, mechanics and transmissivity of single rockfractures using both laboratory and in-situ experiments, aswell as numerical simulations. Using a laboratory 3D laserscanner, the surface topography of a large silicon-rubberfracture replica of size 1m x 1m, as well as the topography ofboth surfaces of several high-strength concrete fracturereplicas varying in size from 50mmx50mm to 200mm x 200mm, werescanned. READ MORE
-
3. Grouting of Hard Rock with Gelling Liquids, Field and Laboratory Studies of Silica sol
Abstract : Recent grouting projects in Sweden have concentrated on the grout itself. The only grout normally used in Sweden is a cement-based one. During the past 10 years, the acceptable flow of water into tunnels has been significantly reduced. The current requirements mean that an average fracture aperture of around 0. READ MORE
-
4. Characterisation of Fractured Rock for Grouting Using Hydrogeological Methods
Abstract : Sealing of tunnels by grouting demands knowledge concerning the fractured rock and the grout, followed by an appropriate choice of strategy and equipment. In this thesis, the characterisation of rock is the main issue and, since it addresses the engineering problem of producing a description for grouting, the properties of grout and the grouting procedure need to be considered. READ MORE
-
5. Peak Shear Strength of Rock Joints – Towards a Methodology for Prediction Based on Field Data
Abstract : The rock joint shear strength at field scale is an important design parameter and remains a challenge for rock mechanics engineers. In Sweden, there exist a large number of concrete dams that are founded on rock masses which in many cases contain sub-horizontal rock joints. READ MORE