Soil texture deep excavation side wall water burst plugging device and method

The invention provides a soil texture deep excavation side wall water burst plugging device and method, and belongs to the technical field of civil engineering construction. The soil texture deep excavation side wall water burst plugging device comprises handrail rods, a base, a buffering surface layer, a piston board I, a piston board II, a feeding port, a grouting barrel, a piston rod II, a hand pushing rod, a piston rod I, a sliding-resistant edge strip, a centering support and drainage holes, wherein the piston rod I and the piston board I are welded and are arranged in the grouting barrel 7 to form a piston device I, and the piston rod II penetrates through the piston rod I and is welded to the piston board II 5 to form a piston device II. The piston device I can freely slide in the piston device II to form a piston appliance. The piston board I 4 can be freely drawn in the grouting barrel, and the piston board II can be freely drawn between the piston board I and the barrel wall of the tail end of the g