Grout injection pump for rock bolts soil nails

The characteristics of soil nailing wall support are: combining soil with low tensile strength with grouting reinforcement.

Composite, through the deformation of the soil, makes the contact surface produce binding force and friction force, promotes the steel bar to be pulled, plays a joint role, and improves the stability and bearing capacity of the soil. This kind of composite also enhances the ductility of soil failure, which is conducive to safe construction; The displacement of soil composite wall is small, which is generally tested 20mm; Simple equipment, short length of soil nail, simple drilling and grouting process; Good economic benefit and easy popularization; Good coordination with excavated earthwork and implementation of flow operation can shorten the construction period.

 

Grout injection pump for rock bolts soil nails should be used in this project, and small, movable and reliable grout injection pump for rock bolts soil nails should be selected, and the pressure slurry output should meet the construction requirements.

Grout injection pump for rock bolts soil nails is designed and made for permeation grouting, compaction grouting, backfilling grouting, curtain grouting, high pressure split grouting, etc. grouting methods. 

The Features of grout injection pump for rock bolts soil nails:

1.   Compact structure, light weight, easy operate, low maintenance cost;

2.   With digital display counter: it can display at any time, and can accumulate work times;

3.   Flow and pressure can be adjusted step-less;

4.   Equipped with emergency unloading valve: in case of an emergency, it can be load-off instantly;

5.   In low pressure, it will be flow-converging of two pumps; In high pressure, there is only one pump work. Low pressure and large flow, high pressure and low output;

6.   With full-hydraulic shaft device, stable and reliable operation;

7.   Cooling type: water-cooling and air cooling; Suitable for hot and cold areas.

 

Matters needing attention in using grout injection pump for rock bolts soil nails:

1. Before starting to use the grout injection pump for rock bolts soil nails, try the pump with clear water, observe the operation of the grouting pump, and perform grouting operation only after it is normal. Common problems are wrong connection of trachea, and grouting pump can't suck and discharge slurry normally.

2. The connection mode between the grout injection pump for rock bolts soil nails and the air duct should be prepared on the well. If the quick joint is used for connection, it is necessary to weld the quick joint (usually φ25mm) at the air inlet of grouting pump. If the connection is made by using the horse teeth, pay attention to the matching of the diameter of the underground air duct with that of the air inlet of grouting pump.

3. Before connecting the air duct, first press the air to drain, and then blow the water in the air duct clean before connecting the grout injection pump for rock bolts soil nails, so as to avoid damage caused by dirty water in the air duct entering the grouting pump.

For more information about the grout injection pump for rock bolts soil nails, please contact us.