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.Push the rock powder and sundries that are not washed, remain at the hole bottom or stick to the hole wall out of the grouting range, so as to improve the bonding strength and impermeability between the slurry stone body and the fracture surface.BremerhavenSteel pipeAt the bottom of the industry what is the effect of interest rate reduction,2024-04-1902:44:04The secondary grouting pipe can only be grouted once and cannot be reused.● features: the grouting pipe is divided into secondary grouting pipe (ccll-y grouting pipe,BremerhavenPrecision tube, qdm-it grouting pipe,BremerhavenSteel pipe, ccll-y full section grouting pipe) and repetitive grouting pipe (ccll-d grouting pipe, ccll-d full section grouting pipe)
The secondary grouting pipe can only be grouted once and cannot be reused.The grout stop plug grouting method is generally used for Rock Fissure Grouting. The grouting pipe is provided with a grout stop plug, which can close the upper part of the grouting section. The main construction steps are as follows: the grouting hole is drilled by a rotary drill. All grouting holes in the rock stratum are required to be drilled by coring in order to find out the and distribution of rock stratum fractures. The coring rate shall reach ~ % in the rock stratum and % in the broken rock stratum. The drilling cleaning fluid is mainly clean water. If the rock is broken and the hole collapse is serious, thin mud slurry can also be used as circulating fluid.Bremerhaven,Kilkis,The secondary grouting pipe can only be grouted once and cannot be reused.