Efficient anti-blocking backflow grouting pipe and method

Abstract

The invention discloses an efficient anti-blocking backflow grouting pipe. A pipe body is formed by splicing and assembling a plurality of pipe sections. Each pipe section sequentially comprises an upper end section, a lower end section and a grouting section from top to bottom, wherein a plurality of middle sections are connected between the upper end section and the lower end section. A using method comprises the following steps: connecting the grouting sections with the lower end sections through cooperation of splicing openings with outer threads and splicing openings with inner threads, starting a drill bit for drilling, and synchronously increasing the middle sections according to the drilling depth; carrying out grouting in a main pipeline, after grout reaches certain pressure, opening a pressure-resistant rubber sleeve so that the grout flows out of a grout outlet to reach a grouting area; and when grouting reaches the preset effect or waiting for setting, pumping cleaning water into the main pipeline so that water flow can enter the grouting sections along the main pipeline, ascends to the upper end sections under the pressure effect and flows out of a backflow water outlet. The efficient anti-blocking backflow grouting pipe is simple in structure and convenient to operate, the problems of grout overflowing, sedimentation, segregation and the like during grouting of an existing grouting pipe can be solved, and the grouting efficiency is greatly improved.

Description

technical field [0001] The invention relates to a grouting pipe and a method, in particular to a high-efficiency anti-blocking reflowable grouting pipe and a method. Background technique [0002] Grouting is divided into ceramic craft grouting and construction engineering grouting. Ceramic technology grouting is a process of injecting prepared mud into ceramic production. Construction engineering is a method of injecting some curable grout into the cracks or pores of rock foundations with appropriate methods, and improving its physical and mechanical properties by means of replacement, filling, extrusion, etc. However, due to the phenomenon of grouting in water-containing loose sand or broken rock, the grout is easy to escape, settle, and segregate, which leads to problems such as low grouting efficiency, shallow grouting depth, and low grouting pressure. Contents of the invention [0003] In order to solve the shortcomings of the above-mentioned technologies, the presen...

AI Technical Summary

Problems solved by technology

However, due to the phenomenon of grouting in water-containing loose sand or broken rock, the grout is easy to escape, settle, and segregate, which leads to problems such as low grouting efficiency, shallow grouting depth, and low grouting pressure.

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