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8033163 |
Device and methods for use of a dynamic cone penetrometer for evaluating soil compaction
The present invention includes a device and method for more particularly evaluating the compaction of soil by automating the use of a prior art dynamic cone penetrometer such that user error and...
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7810381 |
Hydrostatically compensated deep sea probe with shear strain gauges
A hydrostatically compensated soil resistance probe includes a cylindrical body having a distal tip for insertion into a material, a plurality of load gates for transitioning an axial load on said...
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7762143 |
Penetration-type pipe strain gauge
A penetration-type pipe strain gauge easily transportable and easily installable in various places at low cost in a short period of time to measure strain produced in a shallow layer of the ground....
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7628059 |
Mobile turf instrument apparatus having driven, periodically insertable, ground penetrating probe assembly
A mobile turf instrument apparatus has a wheeled frame that may be propelled over the ground by a motive device, such as by a separate vehicle or by its own engine and drive train. A driven arm is...
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7617718 |
Device and methods for use of a dynamic cone penetrometer for evaluating soil compaction
The present invention includes a device and method for more particularly evaluating the compaction of soil by automating the use of a prior art dynamic cone penetrometer such that user error and...
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7519480 |
Driving-force output of a reciprocating actuator
The force exerted by a reciprocating actuator is estimated as a weighted sum of three quantities: a reaction-mass acceleration, a baseplate acceleration, and a relative acceleration of the...
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7493803 |
Ball penetrometer for soft soils testing
A ball penetrometer probe for in situ measurement of soft soil properties, particularly in the seabed, comprises a spherical body and slender shaft assembly, and either individually or in...
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7308821 |
Arrangement for determining the penetration depth on putting in place supporting elements into a water bed
With an arrangement for determining the penetration depth (10) when putting in place supporting elements (2) into a water bed (5), according to the invention, there is provided a pressure sensor...
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7299686 |
System and method for testing the compaction of soil
A device for determining soil compaction includes a control member fitted with one or more sensors that measure the response of the control member during co-action between the control member and a...
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7175368 |
Method and test setup for determining the bearing behaviour of displacement piles
The invention relates to a method and a test setup for determining the bearing behaviour of displacement piles. The displacement piles are produced by making a hole using a displacement head and...
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7137285 |
Method and instrument for characterizing treading surfaces, for instance for realizing synthetic turf surfaces
An instrument (“artificial athlete”) for characterizing, from the biomechanical standpoint, a treading surface, such as natural grass cover or synthetic grass flooring, is configured for: dro...
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6983643 |
Ground assessment
For assessing ground quality, such as a condition of a racetrack, a handheld device has a shaft, a plate mounted to its bottom end, and a sensor body also mounted to the bottom of the shaft,...
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6973822 |
Safety drive hammer for a dynamic cone penetrometer
Drive hammer assembly with a drive hammer and rod is used with dynamic cone penetrometer tests. A rod end is attached to a cone penetrometer used to measure strength and density of soil. The...
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6925858 |
Turf test apparatus
A drop test apparatus for determining the resiliency of playing surface comprising a missile for impacting the surface including a guide for providing substantially unrestricted free flight of the...
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6701771 |
Multi-friction sleeve penetrometer apparatus and method
Disclosed are apparatus and method for determining interface strength in situ. In one embodiment, the apparatus includes a plurality of load cells, wherein each load cell obtains an in situ...
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6536263 |
Gauges for testing sand in or for golf course sand bunkers
A sand penetrability gauge for golf course bunker sand, having a probe shaft for penetrating into bulk sand, a weight or spring for reproducibly applying force to advance the probe shaft into bulk...
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6531965 |
Modular open system architecture for unattended ground sensors
An unattended ground sensor for the monitoring of a remote area. The unattended ground sensor comprises a housing that supports a power source, a communications module, at least one sensor module...
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6505998 |
Ground treatment
A ground treatment device (10) is weighted to provide ground treatment by dropping the device onto the ground. The device (10) has a relatively narrow nose (12) which provides, in use, the point of...
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6357283 |
Sounding apparatus and method for operating it
Sounding apparatus for pressing a sounding rod into a piece of ground in order to determine the soil properties at various depths, comprising a sounding rod which is intended to be pressed into a...
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6351988 |
Measuring the energy absorbing capacity of a substrate
Apparatus for measuring the energy absorption capacity of a substrate, comprises: a probe (1); means for driving the probe (1) into the substrate so that the probe (1) penetrates the substrate;...
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6349590 |
Method and apparatus for estimating load bearing capacity of piles
A method for estimating the load bearing capacity of a pile using an Impact Load formula including obtaining the values of the weight of an impact mass, the stroke height of the impact mass, the...
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6286613 |
Impact method and the device used in standard penetration test
A point-contact impact method used in the Standard Penetration Test (SPT) is disclosed. The method aims firstly to have the impact between the drop hammer and the anvil in the form of point contact...
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6244102 |
Method and system for examination and optimal compaction of soil enbankments
A method for evaluating the compaction, by means of a vibrator compaction device having mass Mvib and a bearing area F, of a preselected soil layer, for which a predetermined degree of compaction...
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6236941 |
Cone tipped cylindrical probe for use in groundwater testing
A piezocone for measuring the soil's resistance to penetration and pore water pressure while being advanced into the ground by a twenty ton hydraulic cone penetrometer rig. The low pressure...
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6119353 |
Method and apparatus for non-contact measuring of the deflection of roads or rails
Equipment for non-contact measurement of the deflection of a road (2) comprises a self-propelled vehicle with a load (7) which influences at least one wheel (4), the speed of which is measured in...
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6012328 |
Method for calculating a penetrating depth when putting in supporting elements into a water bed
In a method for determining depth when putting in place supporting elements into a waterbed, a pressure sensor fastenable to a supporting element or a device connected to the supporting element...
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5886253 |
Penetrometer
Penetrometer comprising a probe with a conical nose, a cylindrical friction casing, and means for measuring axial friction forces acting on the friction casing when the probe is advanced in an area...
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5726349 |
Automated cone penetrometer
A compact, portable cone penetrometer for determining the shear resistance of soil measures the compressive force on the penetrometer in penetrating the ground by a load cell and the depth of...
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5709271 |
Agricultural planter
An agricultural planter comprises a frame with a plurality of wheels and adapted to be towed by a tractor. The planter has a plurality of row planting units mounted on the frame and carrying...
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5681982 |
Probe for evaluating seafloor geoacoustic and geotechnical properties
An apparatus and method is disclosed for determining geotechnical and geoacoustic properties of seafloor sediment wherein the undrained shear strength and dynamic shear modulus of such sediments...
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5670711 |
Portable rock strength evaluation device
A portable frame that includes a movable support for supporting a cutting tool used for engaging a rock sample, and upon relative movement between the rock sample and the cutter, the cutter will...
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5616833 |
Dynamic cone penetration device
A dynamic cone penetration device for determining denseness of soil has reduced friction to provide more accurate testing. The device comprises a cone rod having a soil penetrating cone at one end...
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5591902 |
Dynamic pyrotechnical penetrometer
The dynamic pyrotechnical penetrometer enables to determine the features of the soils by continuous detection and measurement of penetration of a probe rod (1) using the pressure created by a...
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5581013 |
Method and system for obtaining useful foundation information
A pile bearing capacity determination system which allows the pile driver operator to determine the bearing capacity of a pile while it is being driven without interrupting the driving operation to...
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5548991 |
Permeameter probe
Relative permeability of subsurface earthen materials is measured by advancing a probe into the earthen material at a constant rate while simultaneously injecting a fluid sealant/lubricant, or...
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5493895 |
Modular penetrometer
A selectively configurable penetrometer device for impact testing the physical characteristics of the sea floor includes a hollow cylindrical housing which is formed with a recess. A hemispherical...
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5479992 |
Agricultural implement controller to compensate for soil hardness variation
An apparatus for generating a signal indicative of the hardness of soil. The apparatus has a frame to be moved relative to soil on which a hardness analysis is to be conducted and a sensing element...
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5471868 |
Instrument for measuring the relative resiliency of golf greens
A gauge for measuring the relative resiliency of golf greens including a barrel shaped device with a base having foot pads to hold the instrument on the green and a calibrated spring to drive a...
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5444670 |
Method and apparatus for determining soil strength from Doppler-shifted acoustic signatures
A signal processing system for determining sea floor composition based on the frequency waveform and Doppler shift transmitted from an acoustic penetrometer includes a hydrophone for receiving the...
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5426972 |
Monitoring soil compaction
Methods and apparatus for determining whether soil is satisfactorily compacted. An operator delivers impact energy to the soil, and the amount of impact energy transmitted through the soil is...
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5377551 |
Probe for penetrating and displacing particularly into a mass of pulverulent material
The invention relates to a probe assembly (1) adapted to penetrate and travel in a mass of material, comprising: a hull, a front striking zone (3) and/or a rear striking zone (4) axially opposite,...
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5339679 |
Self-contained apparatus and method for determining the static and dynamic loading characteristics of a soil bed
The invention comprises an improved self-contained, environmentally isolated, multi-parametric measuring apparatus and method for sampling and determining the dynamic loading characteristics of a...
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5337613 |
Measuring instrument for determining displacements in soil, rock, foundation soil or construction materials
A measuring instrument includes first and second rigid, elongate measuring elements which are interconnected by a flexible element. The measuring elements are supported in a measuring tube inserted...
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5323655 |
Method and apparatus for compacting material samples
An apparatus and method for compacting a material sample, such as soil or paving material, including a mold for receiving the material sample and a ram mounted for movement into a first open end of...
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5321976 |
Golf green test apparatus
A resiliency and relative hardness of a golf green is tested by the apparatus having a support base mounting a measuring rod orthogonally oriented relative to the support base and coaxially aligned...
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5319959 |
Air lubricated penetrometer rod system
An air or gaseous fluid lubricated penetrometer reduces friction between the soil and the push rod string. Air is pumped into the interior of the string and is directed by exit ports into the...
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5316950 |
Method for quantitative calibration of in situ optical chemical measurements in soils using soil class and characteristics
A method assures the quantitative or semiquantitative assessment of analytes in soils by in situ optical methods. A determination is made of the optical chemical response factors for chemicals of...
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5313825 |
Dual mass dynamic cone penetrometer
The invention is a dynamic cone penetrometer for measuring soil shear strength which includes an elongated cylindrical rod having a tip end and a handle end. An anvil portion is mounted to the rod...
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5265466 |
Rod insertion method and friction reducing device
The present invention provides a friction reducing device for an elongate member. The device comprises a friction reducing sleeve removably positionable on a first longitudinal segment of the...
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5259240 |
Device for in situ testing of soils that includes a vent valve adapted to close at a predetermined depth during installation
A module model pile tool in situ testing of soils. The tool has an upper instrument section, a lower anchor section, and an axial slip joint located between the instrument section and the anchor...
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