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WO/1993/007462A1 |
The invention relates to an apparatus, suitable for deployment from small vessels, for obtaining samples of materials from the sea bottom and, more specifically, to a multi-bucket sampler particularly suited for, but not restricted to, g...
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WO/1993/004385A1 |
A method and apparatus for deciding deductively a bed structure from a dispersion curve of a Rayleigh wave. A vibration generator and first and second vibration receivers are disposed at predetermined intervals on the ground surface of a...
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WO/1992/018701A1 |
The disclosure relates to an underwater excavation apparatus comprising a tube (10) in which a propeller (18) is mounted for rotation. The tips of the propeller blades are formed with jets (30) supplied from a high pressure water supply ...
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WO/1992/010753A1 |
The dynamic pyrotechnical penetrometer determines soil characteristics by using the pressure created by a pyrotechnical gas generator to drive a probe rod (1) into the ground, with continuous detection and measurement of penetration. A s...
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WO/1992/001839A1 |
The punch comprises a shaft (1) whose lower end (3) is provided with a screw blade (4). Its upper end (22) is connected with a drive (24) for rotation of the shaft about its longitudinal axis and with a mechanism for loading the shaft (1...
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WO/1991/014832A1 |
Device for driving rods used primarily for soil mechanics tests into the ground which comprises a one-piece tubular rod (42) made of a compression and traction resistant material which can be bent by reversible elastic deformation, a win...
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WO/1991/000951A1 |
A test method for boring to determine the mechanical characteristics of the ground at various pre-determined levels, characterised by the fact that it includes the following stages: measuring under no-load conditions the deformation forc...
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WO/1990/015324A1 |
The aim of this invention is to provide methods and devices for in-situ measure of ground heave characteristics. The sensor or device of the invention comprises at least two independently inflatable elements, one of which (111) allows fo...
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WO/1990/011411A1 |
The method provides for introducing, by means of screwing-in, into the ground (2) a barrel (3) with a screw-shaped blade (4) on its end. At a depth (L3) of the ground (2, 9) which is smaller than the depth (L1) of location of the layer (...
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WO/1989/007176A1 |
An apparatus for carrying out impact tests on the ground comprises a weight (15, 16, 17) mounted to a pivoted arm (12) and arranged to swing under gravity about the pivot point (14) of the arm and impact with the ground substantially per...
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WO/1988/006739A1 |
Process for establishing the cohesion curve of an ocean floor at great depth, characterized in that it consists in releasing from the surface a missile (1) of optimal shape for reaching the bottom at a speed sufficient to penetrate the f...
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WO/1987/004743A1 |
An underwater excavator in which when energised by a supply of hydraulic oil or other means a propeller (3) is set in motion with water being drawn in through the cylindrical tube (5) and expelled at the water outlet (6) thereby creating...
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WO/1986/006830A1 |
A borehole stress-meter includes a resiliently radially expandable hollow body (10) within which can be positioned a gage plug (8) having strain gages fixed thereto. The interior section of the hollow body is tapered, as is the gage plug...
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WO/1982/001905A1 |
Procedure and device for measuring the degree of compaction attained when compacting a foundation by means of a vibrating compaction tool. The movement of that part of the compaction tool which rests on the foundation is sensed and analy...
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WO/1980/002174A1 |
A pipe clamp suitable for transmitting a tensile force as well as a compression force to a pipe comprises a house (18) having a cylindrical inner wall, an opening (19) for passing a pipe to be clamped, two guide blocks (21, 22) having a ...
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WO/1979/001099A1 |
A device for measuring pore water pressure in soils employs a pore pressure sound (2) as a sensing member and a closed measuring system (5, 6) for creating the least possible disturbance in soils having a low degree of permeability, such...
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JP7472732B2 |
To provide a technique, which is based on an unprecedented idea, for drilling a test hole by applying hits to a rod with a hammer while further rotating and press-fitting the rod.A standard penetration test apparatus of the present inven...
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JP2024053643A |
The object of the present invention is to enable evaluation of the uniaxial compressive strength of an improved product by measuring electrical resistivity before and after the improvement, without relying on a uniaxial compressive stren...
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JP7465098B2 |
To provide an adhesion strength evaluation method of fluidized soil capable of evaluating whether or not a desired adhesion force is exhibited to a place including an underground outer wall, to which a lateral pressure is added, by measu...
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JP7464299B2 |
The present method is a ground improvement method in which a ground improvement body 30 is constructed by mixing cement slurry 26 to which a water-soluble fluorescent dye at a predetermined concentration is added and soil S, the method c...
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JP2024049092A |
The present invention proposes a spring water pressure measuring device and a spring water pressure measuring method that make it possible to reduce the cost and effort required for long-term monitoring of spring water pressure at the ti...
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JP2024047787A |
[Problem] It is possible to quickly and accurately evaluate the permeability coefficients in the vertical and horizontal directions using a permeability test device filled with the same specimen, and to easily and safely change the water...
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JP2024046399A |
The present invention provides a method for producing a modifying material that can effectively generate a poorly water-soluble salt. [Solution] A method for producing a modifying material according to the present invention is a method f...
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JP7458968B2 |
To provide an injection confirmation method of a solidification material and a high pressure injection agitation method capable of securely confirming a status of injection of a solidification material in real time.An injection confirmat...
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JP2024042567A |
The present invention provides an embankment evaluation system and an embankment evaluation method that can improve the accuracy of embankment evaluation. An embankment evaluation system 1 according to an embodiment includes a resistivit...
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JP2024042606A |
[Problem] When using measuring equipment for heavy equipment, it is difficult to accurately determine whether a pile driving hole has reached the supporting ground. [Solution] The excavation work is stopped a few meters before the expect...
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JP2024041507A |
An object of the present invention is to provide a cone penetration device that can appropriately suppress the reaction force against the penetration of a cone rod with a simple configuration, regardless of the strength of the ground, an...
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JP7456973B2 |
To provide a needle penetration measuring apparatus enabling a needle penetration test to be executed simply and quantitatively, without being restricted by a shape or position of a measurement target, through measuring free from variati...
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JP7455732B2 |
To provide a soil evaluation system capable of easily determining the particle size distribution of soil.First, a learning model is created by associating a plurality of learning soil images with soil particle size distribution informati...
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JP7454323B2 |
To provide an automatic penetration testing machine that can output highly reliable penetration test data.An automatic penetration testing machine 1 according to the present invention includes: a main body 10 that has a vertically extend...
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JP7450454B2 |
To provide a soil evaluation method that can easily and quickly obtain the necessary and sufficient soil quality information at a work site.The present invention comprises an irradiation step that irradiates sample soil S with laser ligh...
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JP2024511712A |
Disclosed herein are methods, devices, modules, and systems that can be used for precise targeting of objects. Point-to-point targeting methods can be implemented by systems with two or more sensors, where the two or more sensors can loc...
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JP2024034701A |
[Problem] To evaluate ground strength more directly by calculating the energy of impact force required to excavate a certain volume of ground. [Solution] The ground strength calculation device according to the present invention calculate...
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JP2024030009A |
An object of the present invention is to rationally detect candidate ranges for additional investigation suitable for improving the estimation accuracy of ground depth. [Solution] A method for detecting a survey candidate range for estim...
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JP2024029886A |
[Problem] To provide a rod-type underwater ground device that is easy to install and a method for investigating underwater ground. [Solution] In this rod-type underwater ground investigation device, a work boat 3 is provided with a plura...
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JP2024030008A |
An object of the present invention is to rationally detect candidate ranges for additional investigation suitable for improving the estimation accuracy of ground depth. [Solution] A method for detecting a survey candidate range for estim...
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JP2024027153A |
An object of the present invention is to reduce the possibility that a ground survey using a ground surveying machine will be intentionally conducted at a location different from the planned survey location. [Solution] A ground survey po...
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JP7440203B1 |
The present invention provides a quality control method for sabo soil cement material that can easily and appropriately determine the water content state of the sabo soil cement material. [Solution] The present invention is a quality con...
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JP7439181B2 |
To provide a wave measuring device and a wave measuring method that solve problems in the prior art, that is, that can measure P wave speed and S wave speed in the ground, allow a receiver to be placed in each layer even if the ground is...
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JP7436321B2 |
To provide a pile-driving construction management method enabling more reliable recognition whether or not a pile driven into a ground using a vibratory hammer has reached a bearing layer.A pile-driving construction management method com...
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JP2024022181A |
The present invention provides a vibrohammer pile driver equipped with a pile construction support system that determines whether a pile a has reached a predetermined support layer. [Solution] A leader 5 equipped with a vibrohammer 7 tha...
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JP2024021160A |
[Problem] To constantly monitor the contamination concentration of runoff generated around earth structures constructed using contaminated soil using rational evaluation indicators, and to support water quality management of runoff. [Sol...
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JP2024021824A |
[Problem] It is possible to reliably collect unconsolidated samples with simple operations during normal construction work. [Solution] The collection tool 1 is constructed by inserting an inner cylinder 10 with a collection opening 16 in...
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JP2024017153A |
An object of the present invention is to provide a resistivity measurement system that can efficiently perform ground measurement work. [Solution] A specific resistance measurement system 1 according to an embodiment includes a holding b...
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JP2024016883A |
[Problem] The problem of the present invention is to solve the problems faced by the prior art, that is, to provide a ground property determination system that can grasp the ground properties during drilling in real time without relying ...
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JP3245557U |
An object of the present invention is to provide a digging pile cave exploration device that solves problems that affect the construction quality of the pile foundation and the stability of the pile foundation when the pile foundation an...
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JP7426028B2 |
To provide an exploration device and an exploration method for ground samples that can suppress the disturbance of a core.A ground sample exploration device 1A comprises a penetration device 20 for penetrating a core tube 200 into the gr...
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JP7425853B2 |
To provide a linear body installation device and a linear body installation method which install a linear body in an underground with high accuracy in a spiral state.A linear body installation device 100 comprises: a winch 10 feeding a p...
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JP2024012607A |
[Problem] Estimate the results of pile construction. [Solution] The pile constructability evaluation system includes at least construction site information indicating the location of the construction site, soil quality at each depth obta...
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JP7424066B2 |
To provide a geological evaluation system, a geological evaluation method and a geological evaluation program for efficiently performing valid geological evaluation.A control part 21 of a geological evaluation device 20 acquires a divisi...
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