• 200 kN CPT penetrometer pusher behing trailer
  • Supervisor at work
  • Observing the reaction forces
  • Observing the reaction forces
  • CPT testing is fun!
  • Old type hydraulic wrench
  • Placing the ground anchors
  • Ground anchors and tensioners
  • Trailer with diesel-hydraulic power-pack and anchors
  • 200 kN CPT penetrometer pusher with tilting construction
  • Mounted on a beam
  • 200 kN CPT penetrometer pusher with tilting construction
Gouda Geo-Equipment B.V.
Satellietbaan 8
2181 MH Hillegom
The Netherlands

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200 kN Stand-Alone CPT Penetrometer Set

The 200 kN stand-alone CPT penetrometer set is a lightweight and economical rig with full Cone Penetration Testing (CPT) capabilities. It is suitable for both electrical and mechanical CPT testing.
 
The stand-alone CPT penetrometer pusher set composes of a 200 kN penetrometer pusher featuring 2 hydraulic cylinders with manually operated valves and a stainless-steel housing for datalogger and computer, a diesel-hydraulic power-pack with a Hatz diesel engine incorporated in a sound insulating enclosure and hydraulic pump and an anchoring system with hydraulic wrench and ground anchors. It can be transported easily by a standard car using the optional sturdy 2-axle trailer.
 
The 200 kN stand-alone CPT penetrometer set is made of the highest quality components available and built to last. The choice for high quality components of well-known manufacturers having local service centres worldwide reduces machine downtime to a minimum.
 
 
CPT Penetrometer Pusher
 
A hydraulic penetrometer pusher of classic design, comprising 2 vertical hydraulic cylinders, simultaneously operated, with a stroke of 1350 mm. A thrust block connects the two cylinders. It is capable of driving and pulling the CPT sounding tubes and casing tubes into and out of the ground. 
 
A hydraulic control unit, mounted on a console near the penetrometer pusher, allows the operator to control all functions.
 
The unit comes complete with 2 guiding tubes, to be applied between the penetrometer and ground level. One for the support of the CPT sounding tubes, the other for casing tubes.
 
The CPT penetrometer pusher is designed for both electrical and mechanical CPT testing. This penetrometer pusher allows for pushing in and pulling out CPT sounding tubes with a diameter of 36 mm, as well as casing tubes with a diameter of 55 mm, and sampling tubes with a diameter up to 90 mm.
 
 
Technical Specifications of the CPT Penetrometer Pusher NOTE: The maximum effective pushing capacity of the stand-alone CPT penetrometer pusher depends on the effectiveness of the anchoring.
 
 
Diesel-Hydraulic Power-Pack
 
The penetrometer pusher is powered by a diesel-hydraulic power-pack. The power-pack comprises an electrically started Hatz 1-cylinder direct-injected diesel engine (9.6 kW @ 3000 RPM) incorporated in silent-pack housing. 
 
The engine, installed on 4 shock-absorbing engine supports, drives a Linde hydraulic pump by means of a propeller shaft and flanges. Large hydraulic oil reservoir with effective 2-stage filtering system.
 
 
Technical Specifications of the Power-Pack  
Anchoring
 
4 ground anchors, which are screwed into the ground before testing and screwed out after testing, provide in general sufficient reaction force for the 200 kN pushing force of the penetrometer pusher when anchored in suitable grounds. Extra reaction force is obtained by using extension rods, anchors with larger blade diameter or by placing more anchors.
 
Anchor extension rods are used to increase the length of the ground anchor. They are most useful at sites where the soil at the surface is very weak, but the strength of the soil increases with a little depth. The extension rods can be invaluable at a site where there is a layer of fill covering stronger native soil. The extension rods have a female hexagonal drive on the bottom that pins to a ground anchor. On top it has a male hexagonal drive. The anchor extension rod is connected to the ground anchor using a high-strength bolt and nut (both included).
 
The CPT penetrometer set comes with a specially designed, two men operated hydraulic wrench for quick and effective placing of the ground anchors. The rotary drive (torque 1700 Nm) is mounted in the centre of the reaction arm of this hydraulic wrench. The wrench can be manoeuvred freely around the pusher and the ground anchors can be placed at that spot that suits the operator best.
 
The ground anchors are available with 3 different blade diameters, i.e. 220, 300 and 400 mm.
 
 
Effective Anchoring 
 
Only well places ground anchors can provide sufficient reaction force to benefit in full from the 200 kN pushing force of the CPT penetrometer pusher.
 
Anchor extension rods are used to increase the length of the ground anchor. They are most useful at sites where the soil at the surface is very weak, but the strength of the soil increases with a little depth. The extension rods can be invaluable at sites where there is a layer of fill covering stronger native soil.
 
Because of the conical shaped soil body on top of the anchor blade, it is recommended to respect a certain distance between the individual anchors in order to obtain optimum anchoring results. The greater the distance between the ground anchors, the more effective the anchoring in fact will be.
 
 
Optional Accessories
 
The 200 kN stand-alone CPT penetrometer set can be supplied with the following accessories and CPT equipment:
International Standards, Safety and CE Marking

The CPT penetrometer rig is designed and built in accordance with national and international standards and regulations. It complies with the provisions of the EC Directive 2006/42/EG and is provided with CE marking certifying that it meets EU consumer safety, health and environmental requirements.
 
The rig is equipped with a 200 kN CPT penetrometer pusher suitable to accommodate the measuring equipment for all kinds of Cone Penetration Tests with a maximum pushing force of 200 kN, such as: The Cone Penetration Tests can be performed according to international standards like ISO 22476-1, ISO 22476-12, NF P94-113, Eurocode 7, ISSMGE standard, ASTM D3441-05, ASTM D5778-12, ASTM D6067-96, ASTM D7400-08, and alike. This includes of course Class 1 piezocone CPTU tests and dissipation tests.
 
The operating procedures of the machine are described in detailed, easy-to-read and well-illustrated user manuals.

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