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The secondary grouting pipe can only be grouted once and cannot be reused.The grouting mechanism includes filling grouting,NiljihasaPrecision tube, infiltration grouting, compaction grouting and splitting grouting. Grouting materials include granular slurry and chemical slurry. Granular slurry is mainly cement slurry, and chemical slurry includes silicate (water glass) and high slurry. Silicification method, alkali solution method, high chemical grouting method and cement grouting method.

Compared with sleeve valve pipe grouting method the common disadvantages of grouting pipe grouting method, flower pipe grouting method and drill pipe grouting method are that it is easy to emit slurry along the pipe wall and the grouting layering effect is poor. These disadvantages are particularly prominent when using slurry with good fluidity and long initial setting time; The utility model has the advantages of simple equipment and process, good flexibility, fast construction speed, and is more suitable for situations requiring rapid response.The grouting equipment, grouting pump and the lowered grouting pipe are connected for grouting, and the grouting is carried out according to the requirements. The grouting pump will inject the slurry into the soil. After completing the construction of one grouting section, move the grouting pipe up or down according to the requirements to carry out the construction of the next grouting section.NiljihasaSteel pipeDownstream demand support without strength continued to be high and low, pile foundation grouting pipe, grouting pipe manufacturer, old brand,NiljihasaSteel pipe, price advantage and quality! Each time it is used up the pipe core and the outer wall of the pipe shall be washed clean.

● specification: inner diameter of secondary grouting pipe: mm; Outer diameter: mm; Inner diameter tolerance: & plusmn; .mm； Length of each roll: m.Water pressure test water pressure test is that the grouting pump injects clean water into the grouting section,NiljihasaGrouting pipe, and its main purpose is to check the slurry stop effect of the slurry stop pipe head, especially the slurry stop plug.Niljihasa,Saida,Process flow: drill in place → Drilling → Mud injection → Run casing → Continue drilling → Slag removal → Hole cleaning → Hoist the reinforcement cage → Water jetting and bottom cleaning → Concrete conduit → Placing concrete → Catheter & rarr; The pile top reinforcement can be divided into single liquid silicification method, double liquid silicification method, aerated silicification method and electric double liquid silicification method.