...J. R. M. Oliveira, MSc, PhD; C. Sangiorgi, MSc, PhD; G. Fattorini, MSc; S. E. Zoorob, MEng, MSc, PhD A conventional grouted macadam is manufactured by producing a highly porous asphalt skeleton (25–35% voids), and filling the voids with a selected highly flowable cementitious grout. Grouted macadam...

... tunnels driven by the TBMs. The difficulties caused by severe geological conditions include dealing with water at high pressure and fissure grouting to reduce water inflow through the permanent lining. Both the temporary and the permanent tunnel lining are described. 4. The North Hollywood Extension...

... KING PIERS RESEARCH INSPECTION STRESS DISPLACEMENT DEFLECTION TESTS INSTRUMENTS INSTRUMENTATION RESEARCH INVESTIGATIONS TRIAL REPAIRS GROUTING GROUTS STITCHING BARS ROCKS ANCHORS REPLACEMENT SEALING VOUSSOIRS LIMESTONE BLOCKWORK COSTS WATERPROOFING RESTORATION RIBBLEHEAD...

... revealed the need to support the lining in two locations. Rock bolting, grouting and guniting was used at one weak area whereas at the east end a tunnel-within-a-tunnel was constructed for 120 m using precast concrete segments. Extensive temporary works and careful monitoring of the tunnel structure...