Grouting Pipe

The product uses an injection or a polypropylene molding. 
Outer diameter 58mm,inner diameter 40mm, length 350mm
Accessories: lid, bottom, rubber expansion sleeve rubber seal ring just pulp.

Grouting governing the use of two commonly used methods, there are flowers and one-way valve tube grouting grouting two kinds of construction methods. Two kinds of grouting method are used for permeation grouting, while the fracturing grouting can only use one-way valve tube grouting method (SRF Shanghai Tunnel Engineering Company Act). In the soil permeability coefficient is less than 10cm / s when. Practice has proved that the ground below a certain depth of soil reinforcement and follow-up grouting, the splitting grouting with a convenient construction, the effect better advantage of the general took control compaction grouting can not be replaced.

3 grouting tube construction technology in general under the following four steps:
(1) Drill hole in general f80mm-100mm range of drilling degree of error is less than 1% of the vertical (2) sets of the shell hole filling material, said pairs of sets of closed-shell slurry feed to the depth of drilling to the design after pouring in from the drilling closed, its role is to be closed one-way valve tube and the gap between the borehole wall, forcing the open-loop from the grouting hole, press out fold-breaking set of shell material slurry into the surrounding soil. (3) in the full closure of the drilling mud to insert a one-way valve tube (split grouting tube) General f40-60 with the diameter of plastic pipe, at intervals of 33-50mm drill a shot hole plasma (ie, per meter (2 -3 group) outsourcing rubber cover, insert the drill when the client when the pore closed pipe filled with water. (4) in a closed mud reaches a certain intensity, the one-way valve in the sealed tube into a two-way stratified core grouting grouting, and along the crack spread, the scope of proliferation by the grouting pressure, time, slurry ratio, soil characteristics and other factors. usually once per meter from the bottom of the grouting to achieve a certain pressure, the institute one meter re-grouting, so that repeat carried out. grouting is completed, clean residual slurry pipe in order to repeat the grouting in the second (one-way valve plastic pipes that remain in the grouting of the soil.)