Gouda Geo-Equipment BV

- Crawler-Truck CPT Penetrometer Rig

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he CPT crawler-truck is a CPT penetrometer rig based on a truck-chassis provided with a crawler undercarriage. The crawler-truck has been designed to execute soil mechanical research based on static Cone Penetration Testing (CPT) techniques in an efficient manner. By means of the penetrometer pusher, installed in the centre of gravity of the CPT crawler-truck, either an electrical or mechanical probe (called a cone) is pushed into the ground and the mechanical resistance and friction of the soil is recorded. The CPT crawler-truck itself has a relatively high own weight and serves as counterweight to provide the required penetrative force.

The CPT crawler-truck is normally used on badly accessible job-sites and will therefore be constructed on top of a 4x4 all-wheel drive truck chassis. In cases where weight is of the essence you can also opt for a truck with 4x2 drivetrain. Before the CPT crawler-truck can do a CPT test, it is to be levelled horizontally. This is done by means of the 4 hydraulic cylinders that actuate the up and down movement of the crawler undercarriage. With these the CPT crawler-truck can be levelled exactly horizontally and furthermore they assure also its stability during testing.
 
All functionalities of the CPT crawler-truck are driven hydraulically. The diesel engine of the truck drives the hydraulic pump that generates the required working pressure and volume for all hydraulic functions.

The CPT penetrometer pusher is located inside the working cabin of the crawler-truck. Next to it the operating lever for the up-and-down movement of the penetrometer pusher is located and the electrical cabinet housing all electronics, the engine control panel and control elements.

MAN Truck with 4x4 or 4x2 Drive Train
We recommend and offer the following truck with the following specifications: 

  • Brand and type: MAN TGS 18.360 4x4 (or 4x2)
  • Driver’s cabin: Compact “M”-type cabin with air-suspension
  • Wheel-base: 4500 mm (will be extended by our engineers)
  • Steering: Left or right hand drive (depends on your country)
  • Max. permissible front axle load: 9,000 kg
  • Max. permissible rear axle load: 11,500 kg
  • Tyres front axle: 385/65R22.5 (2 nr.)
  • Tyres rear axle: 315/80R22.5 (4 nr.)
  • Engine: 360 HP (265 kW) - 1800 Nm common-rail (more powerful engine is possible at extra charge)
  • Exhaust gas emission: Euro-6
  • Exhaust: Vertically behind the driver’s cabin to avoid that exhaust fumes will accumulate under the working cabin while doing a CPT test
  • Gearbox: Automatic TipMatic with off-road software specifications
  • Power take-off: Directly connected to the gearbox , suitable for continuous use

Standard Equipment
The CPT crawler-truck comes standard with the following equipment:

  • Crawler undercarriage (D3 frame size!) with triple grouser track shoes (W = 700 mm)
  • Automatic levelling by means of a XY inclinometer sensor connected to the PLC controller
  • Professional radiographic remote control for operating of all driving and levelling functions
  • Robust 200 kN penetrometer pusher (pulling force 260 kN, stroke 1350 mm). Max. pushing force depends on the weight of the crawler-truck
  • “Load Sensing” hydraulic pump (silent version)
  • Electronically controlled proportional hydraulic valves
  • Central lubricating system that assures longevity of components when using the unit off-road
  • Touch-screen panel PC for the operation of all functionalities
  • CAN-bus based electronic controls
  • Second engine control unit which will be installed in the working cabin
  • Joystick to control the up and down movement of the CPT penetrometer pusher on height adjustable console
  • External connection for a battery charger
  • Stainless steel storage rack for CPT sounding tubes and casing tubes
  • Bellows construction provides the required space allowing for the up and down movement of the CPT penetrometer pusher
  • Robust plywood floor covered with an extremely durable anti-skid coating inside the working cabin
  • Aluminium steps for safe accessing the working cabin
  • Road legal lighting and retroflection contour lines as required by law


Optional Extras
 
The CPT crawler-truck can be supplied with the following optional extras:

  • Automatically functioning hydraulic clamp, type Spinae, integrated in the push-and-pull yoke of the CPT penetrometer pusher. Suitable for the automatic pushing and pulling of standard CPT sounding tubes (36 mm), heavy CPT sounding tubes (44 mm) and CPT casing tubes (55 mm)
  • Revolving rack for the storage of CPT tubes for mechanical CPT testing
  • Passage in the roof for piezometer tubes
  • Sky light window in the roof
  • Industrial flat panel PC computer with 15' TFT colour display and touch-screen
  • Fire extinguisher
  • Smoke alarm
  • Gas detector
  • First aid kit - type A
  • First aid kit - type B
  • Burglar bars
  • Alarm system
  • Chair
  • 2-doors locker cabinet
  • Storage rack for piezometer tubes
  • Independent diesel heater with thermostat
  • Bott work-bench with drawer cabinets and stainless steel or trespa top
  • Heuer vice (125 mm) with gripping jaws for tubes
  • Pivot joint for vice
  • Tool-set
  • Storage rack for tools, etc.
  • Storage facilities for spare tubes
  • Airgun with piping and safety valve
  • Hydraulic winch including mounting frame at the front of the truck
  • Data communication system (differs per country)
  • Hydraulically driven electric generator, capacity 5 kVA
  • Power inverter with pure sine wave output 24 Vdc ► 230 Vac, Capacity 800 W
  • Power inverter with pure sine wave output 24 Vdc ► 230 Vac, Capacity 2500 W
  • Extra set of batteries with isolator and mounting frame etc.
  • 24 Vdc power point
  • 230 Vac power point
  • System with 3 cameras and a monitor. Camera 1 is mounted just on top of the right door (blind spot), camera 2 at the rear of the CPT cabin and camera 3 underneath the passage in the CPT penetrometer support beam, facilitating to manoeuver the unit right on the testing spot
  • Set of 2 Power-LED warning lights (orange)
  • Floodlight / working light
  • Lamp under inspection hatch in front of the penetrometer pusher
  • Extra RAL colour (two-tone painting)
  • Lettering
  • Kitchen unit with stainless steel sink, 'Grohe' water tap and stainless steel water tank
  • Radio and CD-player with antenna and speakers
  • Extra costs for tinted glass instead of transparent glass
  • Garbage can
  • Holder for cleaning paper including a roll of cleaning paper
  • Roller blinds
  • Air conditioning
  • Hydraulic catching clamp
  • Mudwiper with rubber rings

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