Dynamic probing rig DPL, DPM, DPH

The heavy dynamic probe is a relatively portable and most often used soil investigation tool which is used to generate a vertical profile of soil stiffness which can be empirically linked to design parameters such as cohesion, Internal Angle of Friction and SPT-N Value.

The rig can be transported manually on robust pneumatic-tyred wheels. At the probing point the mast is erected and is set up to the correct vertical position by means of two spindles and an air bubble level.

Various rod systems according to local standards can be employed, a blow counter helps with taking the reading. The conversion to different weight and drop standards is quickly achieved by mounting or removing of additional drop weight bodies or drop height adaptors.

The drop weight assembly is lifted by means of a rope winch with hand crank or by hydraulic motor.

Also for WINDOW SAMPLING up to 80 mm !

Sampling is carried out by using window sampling tubes or slotted probing rods which are driven into the soil by means of the a drop weight.

For the extension the rods 22 or 32 mm can be used, depending on the type of probing .