A pressure-grouted helical pile (PGHP) is a stiffened installed by using the simultaneous drilling and grouting technique. The formation of soil-cement column surrounded influenced multiple installation parameters, including helix number, size, speed. series small-scale model tests was carried out in clay to investigate influence parameters on axial behavior PGHP load transfer mechanism. piles ...

In order to study the damage mechanism of fissure-grouted rocks in abandoned mine pumped storage, uniaxial compression tests were conducted using rock specimens after dry and wet cycles. Additionally, acoustic emission sensors used track specimens. The results demonstrate a negative correlation between peak strength elastic modulus linear decrease wave velocity mechanical characteristics fractu...

The behaviour of squat shape partially grouted concrete masonry shear walls with fixed-end boundary conditions subjected to constant average axial stress and cyclic lateral loading was investigated. Two replicas were tested each combination horizontal reinforcement ratio (0.12%, 0.06%, 0.03%) four end anchorage (straight, 90°, 180°, studs). the compared in terms strength, ductility, stiffness, ...

This study presents an innovative technique of executing soil nails called sectorized post grouting (SPG). The most utilized nail is gravity grouting, with the literature reporting advances in pressurized grouting. Although obtaining higher pullout resistance nails, mostly done single-stage does not compensate for exudation and its use lengths difficult. Thus, a has been developed that compensa...

Grouted sleeve connections have been widely used in precast construction for joining rebar. In order to study their post-fire seismic performance, grouted connections, which are heated first elevated temperature and then cooled down room temperature, tested under both monotonic cyclic loadings. For comparisons, the same tests also carried out on continuous The failure modes, skeleton curves com...