The invention relates to the field of grouting construction research, in particular to a double-
slurry sectional type grouting device and method based on a triple
pipe, and the device comprises a triple
pipe assembly, a triple
pipe connector, a conversion connector, a grouting plug
assembly and a hose connector
assembly. Compared with a device in the prior art, the device is low in lowering and recycling accident rate, stable in setting and unsetting performance and capable of effectively separating hole sections, so that the hole sweeping
workload is reduced, the operation difficulty is lowered, the
grout setting time is controllable, invalid
diffusion of
grout is effectively prevented, grouting materials are saved, the grouting targeting performance is accurate, and the grouting efficiency is improved. And a water-rich stratum with relatively high underground
water flow velocity and flow can be quickly blocked. Particularly, a triple pipe assembly is additionally arranged in the device and used in cooperation with other components, in-pipe separated conveying and out-pipe mixed pouring of the double-liquid
slurry can be achieved, and the risks that after the double-liquid
slurry is mixed in the pipe, the double-liquid slurry can be rapidly solidified to block a grouting pipeline, and damage is caused by
extrusion, congestion, excessive stretching and the like in the lowering and recycling process are avoided.