The utility model relates to a rear joint bar anchor rod /
pile of a dumping type reserved large-cavity spiral
drill rod, which can be applied to the fields of foundation pit support, side slopes, leakage stoppage, floating resistance, reinforcement and deviation rectification. The anchor rod /
pile is composed of a one-time soil discharging type large-cavity spiral
drill rod, a rib body implanted after hole forming,
cement paste or a double-liquid-
slurry grouting body and auxiliary components. When the anchor rod /
pile is implemented, an anchor rod drilling
machine is used for drilling the soil discharging type large-cavity spiral
drill rod in place, then the drill rod is reserved in a stratum, a rib body is implanted into the large cavity, then
pressure grouting is conducted after hole sealing, and the interior and the exterior of the drill rod are fully grouted through a
pressure grouting hole reserved in the front end of the drill rod. The anchor rod / pile can be effectively implemented in a
quicksand layer and a sand
pebble layer with flowing water or
confined water, ensures that the
bearing capacity meets the requirement, and is particularly suitable for an anchor rod needing to penetrate through a waterproof curtain or leaking stoppage, anti-floating, reinforcing, deviation rectifying and layer adding projects. The anchor rod / pile can be used as an uplift anchor rod, an uplift pile, a bearing pile and a support pile.