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JP7079186B2 |
To provide a ground strength calculation device and ground strength calculation program that can determine ground strength accurately while excavating the ground.The ground strength calculation device according to the present invention m...
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JP2022082206A |
To suppress a disturbance of surrounding groundwater regions, to ensure stable water sampling, and to reduce the labor and cost of work with a simple structure by adjusting the amount of water sampling.A water sampling port unit used for...
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JP7076100B2 |
To provide a determination method of a stratum making a determination of a stratum performed by using a drilling device easier.A determination method of a stratum includes: drilling a soil using a drilling device while applying water; me...
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JP7075787B2 |
To estimate safely and surely trafficability information of a land.An information acquisition part 34 acquires relative reflectance information which is a multidimensional distribution of a relative reflectance of a ground surface of an ...
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JP7073151B2 |
To provide an excavator capable of estimating the hardness of the ground with high accuracy.An excavator according to an embodiment of the present invention has a lower traveling body, an upper revolving body that is pivotably mounted on...
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JP2022073554A |
To provide a technique which can estimate a moisture content ratio of a ground with higher accuracy by using spectrum data obtained by a spectrometer.A moisture content ratio measurement device 100 measuring a moisture content ratio of a...
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JP2022071420A |
To provide a ground improvement information link system linking information between a construction machine and a measuring machine used in a ground improvement work to integrally manage construction information and measured information i...
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JP7064028B1 |
To immediately obtain quantitative geological information excluding personality at an excavation site by setting up cuttings as a sample suitable for mechanical analysis. Regarding a method of preparing a sample for observing and investi...
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JP7060533B2 |
To provide a shear wave speed measurement device capable of improving reception sensitivity of a receiving side piezoelectric part.A shear wave speed measurement device 1 measures a shear wave speed of soil S based on output signals of r...
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JP7058392B2 |
To provide a method for estimating strength of cement based solidified soil allowing for estimation of strength of the cement based solidified soil exerted after a prescribed curing period, at an early time of the curing.The method for e...
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JP7058155B2 |
To provide a survey method of ground property capable of more accurately surveying stratum property.In a survey method of ground property, hole drilling data is obtained at each prescribed depth when drilling a hole in a ground G with a ...
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JP2022055320A |
To provide a ground investigation method for determining a layer that can be liquefied at the time of earthquake by efficient ground investigation, and optimally determining necessity of a liquefaction countermeasure.A ground investigati...
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JP7046126B2 |
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JP7045023B2 |
To provide a device and a method for measuring density and water content of a ground which can minimize risk of breakage and loss of RI radiation source and which can improve measurement accuracy, while saving manpower for a measuring wo...
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JP7044351B2 |
To provide a sample which hardly strains plastically and a sample collection method.A ground G is excavated to a prescribed depth H1 using a rod 22 fitted to a ground excavation apparatus 20, then a supercooled solution in a supercooled ...
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JP2022048466A |
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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JP2022046135A |
To provide a sampling device and a sampling method capable of reliably collecting a sample of a desired depth of improved ground.A sampling device 10 comprises a main body 12 having a cylindrical shape with both ends 12a and 12b open, tw...
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JP7039958B2 |
To provide a shape evaluation method and an underground object measurement device capable of further accurately evaluating a shape of an underground object.A measurement unit 20 of an underground object measurement device 10 for sending-...
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JP2022045659A |
To provide an information processing system capable of supporting a user's determination.An information processing system in an embodiment includes an acquisition unit, a model execution unit, and a display control unit. The acquisition ...
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JP2022045664A |
To provide a determination device capable of supporting the user's determination.A determination device in an embodiment includes an acquisition unit, and a model execution unit. The acquisition unit acquires geological information and e...
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JP2022037524A |
To cut rock bed without using a large scale device.A rock bed evaluation device 20 includes: a cutting device 22 comprising a driving portion 22A rotating a bit 22C provided at a tip of a rod 22B and cutting a rock bed G; and a load memb...
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JP7027392B2 |
To provide a boring machine for geological survey that is easy to carry in and out of mountainous areas, maintains work capacity in narrow and low ground level sites, has sufficient digging capacity of 10-15 m, and can perform standard p...
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JP7025220B2 |
To provide a confirming method of arrival at a support layer and a vibration generating device used in the same which can accurately determine arrival of a support pile at a support layer, regardless of a stratum configuration, a number ...
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JP7023258B2 |
To provide a ground sampling device and a ground sampling method that can reduce a freezing sampling cost by minimizing a frozen range and reducing the amount of coolant, freezing time, coring work, drilling water cooling equipment, and ...
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JP2022026159A |
To provide a vibration generator and a shear wave generating method capable of generating shear wave underground with a simple facility without being restricted by geology of a ground to be measured.A vibration generator 4 generates a sh...
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JP6997983B2 |
To solve problems in conventional precast embedding methods including: a low sealing property and mixture of foreign matters in an unsolidified liquid, due to a configuration which opens and closes a collection opening by rotating an ope...
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JP7016121B2 |
To provide a pile hole filler collection device capable of easily collecting a pile hole filler from a plurality of arbitrary collection positions in a pile hole.A plurality of collecting units 5 and 6 that can be inserted into pile hole...
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JP7012290B2 |
To provide an evaluation method of improvement effect of an improved ground which can evaluate strength and rigidity of an improved ground on a bearing ground simply in a short time, in a ground improvement construction.In a strength eva...
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JP2022014969A |
To accurately evaluate a ground property.The estimation method of a ground speed structure estimates ground speed structure in a subsurface ground from earthquake observation records of a ground surface and each ground depth position in ...
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JP7004296B2 |
To solve a problem that, as to conventional devices which are just blocked with a cover member, there is no disclosure of removing a cover member, and recovery efficiency and workability are low because an inside unsolidified sample is e...
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JP2022014328A |
To evaluate the degree of liquefaction while omitting operations to collect data related to the ground.A liquefaction evaluation model generation device comprises: a data acquisition unit that acquires teacher data that has vibration dat...
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JP7000594B2 |
Provided are a test device capable of simulating the erosion effect and interface shear of a suction bucket foundation installation, and a test method, wherein the device includes a bucket type erosion tester, a pressure and flow control...
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JP6997924B2 |
To reduce the equipment, period and cost significantly and to improve the accuracy of a logging, by simplifying an installation of a probe equipped with a sensor when logging in a borehole.The status of the wall surface inside a borehole...
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JP6998572B2 |
Disclosed is a jet-type in-situ soil sampler. The jet-type in-situ soil sampler is used for obtaining a soil sample and retaining in-situ characteristics thereof. The soil sampler is provided with: a cut-in mechanism, which is capable of...
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JP2022011808A |
To provide a wrench for a penetration rod that can easily loosen a threaded part of a connected penetration rod.A wrench for a penetration rod 50 is a tool for loosening a penetration rod 1 connected by threaded connection, and comprises...
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JP2022012433A |
To provide a method of evaluating liquefaction strength suitable for evaluating liquefaction strength of trash-mixed ground.A method for evaluating the liquefaction strength of trash-mixed ground includes steps S21, S31 of collecting gro...
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JP6994785B2 |
To simplify work accompanied by a ground survey by automatically extracting an inflection point of a D-Vrb curve.In a surface wave survey analyzer for a ground survey system for surveying the ground by detecting a surface wave which is g...
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JP6990668B2 |
To provide a ground survey device which easily grasps characteristics of a ground in a short time.A ground survey device 9 surveys a ground 4 by measuring shear waves propagating inside the ground 4. A thrusting part 10 is thrusted into ...
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JP6987624B2 |
To provide a pile construction method and a pile construction management system capable of properly constructing piles, while suppressing period and cost required for a ground exploration, even in a case where a large number of piles are...
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JP6979814B2 |
To provide a strength prospect method for a foundation part, a compression strength prospecting apparatus, a compression strength determining apparatus which may more accurately prospect a compression strength of a foundation part or may...
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JP6979503B1 |
To shorten the work time of compaction construction.Compaction management methodI will provide a. It is a compaction management method that manages compaction work by a compaction vehicle, in which a measurement step for measuring CCV of...
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JP2021188280A |
To provide a soil quality determination device, a soil quality determination method, and a soil quality determination program capable of determining the soil quality.Four electrodes 11a to 11d are aligned in soil 1. A power supply unit 2...
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JP6973836B1 |
To provide a cushion material jump-up prevention cover capable of preventing the cushion material installed on a pile head from jumping up and scattering due to breakage due to an impact when a weight is dropped. A cushion material 3 is ...
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JP6969899B2 |
To provide a strength estimation method for a foot protection part, the method being stable regardless of an amount of ground material.An estimation method for a foot protection part includes: a first step of collecting a first sample fr...
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JP6969110B2 |
To provide a quantitative ground determination method using various data acquired during drilling.A ground determination method according to the present invention comprises: a first drilling process to carry out drilling with a drilling ...
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JP6967617B2 |
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JP6963917B2 |
To appropriately evaluate permeability of injection material into natural ground.Simulated natural ground 30 is stored inside a slender cylindrical test container 10 through which the inside of the container can be seen. Injection materi...
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JP6959846B2 |
To provide a penetration rod which prevents the biting of soil during connection and disconnection of the rod and a screw point.A penetration rod 1 comprises a rod 2, a penetration body 3 that is rotationally penetrated into a ground, an...
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JP6960834B2 |
To provide a determination method for positioning subsoil exploration, a determination device, a subsoil estimation method and a subsoil estimation device capable of not only quantitatively evaluating error but rationally determining add...
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JP6961234B2 |
To provide a sampling device and a sampling method capable of securely collecting an uncured sample in a foot protection portion constructed in a bottom of a pile hole in a state where sediment and the like are not included.A sampling de...
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