Compressible Annular Gap Grouts for Squeezing Rock (B03)

• Subject Area: Construction Material Sciences, Chemistry, Building Physics
• Term: from 2010 to 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 77309832

Subproject B3 focusses on the development of compressible annular gap grouts. The experimental investigations will consider aspects for the material itself as well as for the execution to ensure a robust grouting. Based on numerically designed suitable microstructures (Subproject B2) grouts will be generated by adding compressible particles to the mortar or by per se porous mortars, which will enable ideal-plastic behavior up to about 50% deformation. Besides the development of such grouts, some of them will be investigated in combination with deformable lining segments (Subproject B1).

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 837: Interaction Modelling in Mechanised Tunnelling
• Applicant Institution: Ruhr-Universität Bochum
• Project Head: Professor Dr.-Ing. Rolf Breitenbücher