the load transfer mechanisms of cable bolts differ from those for normal rebar bolts. the cable bolts used in mines are basically steel strands with different constructions depending on the number of wires or elements and the way they are laid. tendon bolts (rebar and cable) are normally evaluated for their strength and load transfer properties. the tendon strength can be evaluated by the tensi...

Soil nailing is a technique which used to reinforce and strengthen the existing ground conditions. This done by installing closely spaced, passive, structural inclusions known as nail into soil these nails helps improve overall shear strength of soil. The pullout resistance stress at grout-soil interface. soil-nail depends on many parameters. Among factors influencing resistance, degree saturat...

Abstract The Semmering Base Tunnel (SBT), with a total length of 27.3 km, is one the leading construction projects Baltic-Adriatic Railway Network. tunnel connects two federal provinces Lower Austria and Styria cuts through eastern part Alps. lot SBT 1.1-Tunnel Gloggnitz characterized by complex geological- hydro-geological architecture containing alternating competent geological structures, ma...

Grout is a cement-based material with high strength and workability that allowing it to be injected into small cracks or leaky areas. It usually used patch concrete holes, but may also fill voids under metal bases digging anchors. Furthermore, grout efficiently in the production process of semi-flexible pavement mixtures. The purpose this study characterize effect ingredients on their mechanica...

Semi-Flexible Pavement (SFP) is a composite type of pavement produced by manufacturing porous asphalt mixes using open graded aggregate gradation to create 20-35% voids filled with grout (cement paste, cement mortar, etc.….). The resulting has the flexibility and some strength concrete pavement. current study focused on investigation widely available (in Iraq) waste material namely Rice Husk As...

To make the bearing capacity tests safer and more affordable for prestressed high-strength concrete (PHC) piles, this paper proposes a reaction device anchor piles filled with core grout based on geometric mechanical characteristics of PHC piles. The proposed has advantages convenient construction, strong controllability connection quality low cost. In addition, pile will not experience prestre...