The invention provides a self-grouting-stopping device of an
assembly type grouting guiding
pipe,and belongs to the technical field of
geotechnical engineering and particularly belongs to undergroundconstruction guiding
pipe grouting construction. The self-grouting-stopping device of the
assembly type grouting guiding
pipe comprises a grouting guiding pipe, a sleeving pipe, a sealing ring, a check plug and a grouting connecting pipe, wherein a separating grid is arranged on a
slurry inlet of the grouting guiding pipe, outer threads are arranged on the outer wall of the
slurry inlet, a ring-shaped sealing plate is arranged at the inlet end of the sleeving pipe, a ring-shaped groove is formed in the inner wall of the outlet end, the ring-shaped groove is provided with inner threads, the sealing ring is arranged between the end surface of the ring-shaped groove and the end surface of the
slurry inlet of the grouting guiding pipe, the grouting connecting plate is fixed to the sealing plate, and the check plug is a cone and is arranged in the sleeving pipe and the grouting connecting pipe. According to the self-grouting-stopping device of the
assembly type grouting guiding pipe, the grouting guiding pipe, the sleeving pipe, the check plug and the grouting connecting pipe are all prefabricated by a factory and can be quickly assembled and used in an
engineering field, a grouting andgrout-stopping device is not required to be machined on the construction site, site
operating time is shortened, and potential safety hazards caused by electrical
welding or
cutting operation are avoided.