A system configured to determine a property of a paving-related material is provided. The system includes a measuring device configured for measuring a property of a paving-related material and a cellular computer device configured for being in communication with and receiving data from the measuring device.

A soil shear testing device having a frame with a first plate and a second plate spaced apart from the first plate and fixed with respect to the first plate for defining a gap therebetween, the first plate having a first plate aperture formed therein and the second plate having a second plate aperture formed therein and being coaxial with the first plate aperture. A movable plate being insertable into the gap, having a movable plate aperture formed therein, the moveable plate being insertable into the gap into a receiving position where the moveable plate aperture is coaxial with the first and second plate apertures for allowing the device to accept a soil sample column, the gap having a depth for permitting the movable plate to be displaced past the receiving position for shearing the soil sample column at two separate shearing planes defined by opposite sides of the moveable plate.

A system for performing a standard penetration test, including a hammer assembly with a hammer and a hammer lifting device, an elevator assembly for raising and lowering the hammer assembly, a hammer sensor for sensing a position of the hammer within the hammer assembly, and an elevator sensor for sensing a position of the hammer assembly relative to the elevator assembly. A method for performing a standard penetration test, including positioning a hammer assembly at a hammer assembly ready position, sensing with an elevator sensor a reference position of a hammer assembly relative to the elevator assembly, sensing with a hammer sensor a zero position of a hammer, lifting the hammer with a hammer lifting device from the zero position to a drop position of the hammer, sensing with the hammer sensor the drop position, and dropping the hammer onto an anvil.

The present invention relates to a method for controlling a vibrating pile driver when driving a pile element (4) into a ground (6), wherein the vibrating pile driver includes a vibration unit (2) connected with the same and is attached to a carrier machine (5, 1), the method comprising the following steps: detecting at least one first status parameter of the carrier machine (5, 1) and detecting at least one second status parameter of the vibration unit (2). The method is characterized in that with reference to the at least one first status parameter and the at least one second status parameter a statistical ground model is generated, and individual operating parameters of the carrier machine (5, 1) and the vibration unit (2) are adapted to the statistical ground model, in order to optimize the energy consumption and/or an advance rate when driving in the pile element (4).

Geotechnical apparatus comprising at least one rod provided with a probe, which rod has a longitudinal bore extending along its body which is in fluid communication with one or more lubricating openings behind the probe for introducing lubricant along the rod's superficial area, wherein the apparatus further comprises a drive unit for the at least one rod for pushing said rod into the ground or pulling it from the ground.

Disclosed herein is a system and method for determining the compaction of terrain based on rolling resistance. The system comprises a work machine configured to move along a route along the terrain, a navigation system configured to generate route data indicative of the route, a sensor configured to generate operating parameter data indicative of an operating parameter of the work machine moving along the route, and a processing unit. The processing unit is configured to process the operating parameter data to generate rolling resistance data indicative of the resistance by the terrain to the movement of the work machine along the route, and to process the rolling resistance data to generate compaction data indicative of the compaction of the terrain along the route.

Subsurface exploration using In-Situ tests such as SPT, CPT, CPTu, DMT, and PMT predicts inaccurately engineering properties of soils and intermediate geomaterials and thereby predicts incorrect load-settlement relationship of piles; variations or errors in engineering properties predicted by one empirical correlation to another correlation could be up to 50% or greater. For soft to very soft soils, engineering properties cannot be predicted as the SPT only provides information such as WOR and WOH. To overcome this problem, the invention of the application consists of performing subsurface exploration using load tests on short model piles with or without instrumentation at various depths of a soil deposit for determining accurately the above-mentioned properties. For very soft soils, a hung balance is used to hang drill rods and short model pile from a drill rig boom or from a platform with soil anchors to prevent its overturning, and then perform the load test.

A work machine with a chassis, a wheel hub rotationally coupled to the chassis, a tire coupled to the wheel hub and configured to engage an underlying surface, and a controller communicating with a plurality of sensors and having a memory unit. Wherein, the controller stores tire data for the tire in the memory unit and the controller determines a cone index of the underlying surface of the work machine based on the tire data and the plurality of sensors.

A soil condition estimation apparatus 1 includes a selection unit 2 that, by using a propagation time that vibrations take to propagate through a soil, selects vibrations measured from the soil, according the depth of the soil; an extraction unit 3 that extracts a feature of the selected vibrations; and an estimation unit 4 that estimates conditions of the soil by referencing soil estimation information in which the feature and conditions of the soil are associated with each other, using the feature.

The present invention discloses a second-generation in-situ test device for strength of a shallow water sediment, including a workboat and a static cone penetration test unit carried by the workboat, where the static cone penetration unit includes a mounting frame, a penetration unit, a control cabin and a hydraulic unit; the penetration unit and the hydraulic unit are both electrically connected to the control cabin. In this solution, the workboat is used to carry the test equipment, and the static cone penetration test unit is carried on the workboat with a special structure. Based on a double-cable lifting frame, the equipment is launched and recovered through a moon pool in the center of a hull. This significantly improves the efficiency and safety of the sediment strength test operation in a shallow water environment.