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JP7351206B2 |
To appropriately evaluate the performance of a well facility.Provided is the evaluation method of a well facility that has a water collection well 12 and multiple water collection pipes 20 having a lot of water passing holes in the perip...
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JP7351799B2 |
To provide a device and a method for testing a needle penetration that allow a quantitative measurement to be done easily and at site without causing variations in the rate or in the angle of a needle penetration.The present invention re...
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JP7351798B2 |
To provide a device and a method for testing a needle penetration that allow a quantitative measurement to be done without causing variations in the rate or in the angle of a needle penetration, and that also allow a measurement to be do...
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JP3243847U |
An object of the present invention is to provide a soil sampler for inspection in solidification construction, which is capable of simultaneously sampling soil samples at different depths. A soil sampler includes a casing 1, a boring rod...
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JP2023131839A |
To provide a slime confirmation method and slime confirmation device to efficiently confirm a slime settling state on a hole bottom.A slime confirmation device A1 is to confirm a slime setting state of slime SL1 on a hole bottom of a pil...
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JP2023131213A |
To provide a quality control method for a bentonite-containing impervious layer ensures quality control by measuring the penetration resistance force of the bentonite-containing impervious layer, even at a slope face or a narrow part.A q...
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JP7347887B1 |
[assignment]To shorten the period required for a soil cement mixture test. [Solution] A learning control unit calculates the amount of solidified material and water content for each of multiple types of soil cement mixing cases, and the ...
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JP7344604B1 |
[assignment] Provided is a geological survey device that can avoid or reduce damage to buried objects. [solution] The geological survey device includes a penetration part that can penetrate the ground, a measurement part that measures th...
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JP2023125502A |
To provide an electric characteristics measuring apparatus of a ground which can efficiently measure electric properties of the ground, and facilitates compaction control of a banking.An electric characteristics measuring apparatus 1 for...
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JP2023125818A |
To classify vertical displacement behavior generated in an excavation bottom surface into heave behavior and rebound behavior, and manage the behaviors.A management method of an excavation bottom surface for managing vertical displacemen...
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JP2023124086A |
To propose a needle penetration test device capable of efficiently replacing a damaged penetration needle and easily collecting a plurality of measurement data in situ.A needle penetration test device 3 comprises a housing inserted into ...
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JP2023123662A |
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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JP7336407B2 |
To provide a soil sampling device advantageous for collecting soil of any depth from the ground surface quickly, efficiently, and inexpensively.The soil sampling device includes: a cylindrical sampling tube 12 that has a cutter 14 at the...
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JP2023121185A |
To provide a ground investigation method that enables immediate determination of hardness and softness of a ground through an efficient ground investigation using a minimum number of measuring devices.A ground investigation method for in...
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JP7336372B2 |
To provide a sample acquisition system and an acquisition method for quickly acquiring a sample of an improved ground obtained by agitating and mixing a target ground and an improved material while suppressing an increase in work man-hou...
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JP7333609B2 |
To provide a penetration piston that can quickly perform the work before and after the penetration to a sample.A penetration piston 1 can rotate a lower unit 1a by using a handle part 3 provided at the side of an axial body 2 and slide a...
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JP2023117435A |
To provide a penetration rod disconnection device which can simply separate a rod used in a penetration testing machine.A penetration rod disconnection device 100 includes a chuck 5 capable of rotatably holding a penetration rod 4 accomp...
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JP7332004B2 |
To provide a ground evaluation system and a ground evaluation method allowing adequate evaluation of the ground.A computer terminal 30 comprises a measurement value storage part 35 and a memory 31a storing an index value showing excavati...
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JP2023111249A |
To provide an injection pressure determination method for setting such an injection pressure as to prevent outflow of water from a ground surface, in a site permeability testing method using a pressurization-infiltration accelerating met...
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JP7323492B2 |
To provide a soil density testing method which is simpler in work than the conventional methods.A soil density testing method digs partial soil of a test object and forms a hole, and takes out soil. The soil density testing method measur...
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JP2023108908A |
To construct a vertical hole drainage channel with a predetermined depth from the ground surface by performing vertical movements of excavation a plurality of times, and to provide a vertical hole drainage channel construction machine ca...
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JP2023107018A |
To quantitatively determine an effect of ground stabilization work.In order to evaluate ground stability: a first step (S1) of acquiring vibration measurement information from a plurality of points on a slope; a second step (S2) of acqui...
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JP2023104638A |
To improve accuracy of specific resistance measurement in the ground.In a specific resistance measuring device 1A, a capacitor electrode device 10A has a pair of capacitor electrodes 10 composed of dielectric bodies 13 opposite to a poro...
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JP7311853B2 |
To provide a method, program, and system for discriminating soil property, capable of estimating a humic acid content rate in soil easily with high accuracy.The method includes: a stress application process for applying shear stress to a...
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JP7312122B2 |
To provide a preparation method of a triaxial testing sample capable of obtaining an appropriate repeated stress amplitude ratio by eliminating problems caused by an indentation of a rubber film in a triaxial test for rudaceous soil.In a...
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JP7311244B2 |
To provide a ground evaluation system and a ground evaluation method allowing adequate evaluation of the ground.A computer terminal 30 comprises a measurement value storage part 35 and a memory 31a storing an index value showing excavati...
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JP7305521B2 |
To provide an infiltration test method of test sand which is highly accurate.An infiltration test method of test sand S is provided which uses an infiltration test device X. The infiltration test device includes: a mold 1 in which test s...
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JP2023096905A |
To provide a determination support system and determination method for accurately specifying the depth at which a pile hole reaches a support layer.A determination support system 20 includes a pile management data storage unit 43 that st...
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JP2023096814A |
To surely pull up and recover soil collected from the ground in a sandwiched state.A soil collector 1 includes: a sampling unit 4 including a first plate 2 and a second plate 3 horizontally spaced apart from the first plate 2, in which s...
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JP2023096813A |
To surely recover a recovery can from soil collected from the underground.A soil collecting device 1 includes: a lifting mechanism 10 for moving the collecting tube 2 down to a lower position deeper than the surface of soil by a predeter...
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JP2023095757A |
To easily evaluate a compaction state of the whole foundation.A self-propelled type detector travelling on a predetermined range of a foundation includes: a housing; a plurality of wheels mounted on the housing; a radiation source for ir...
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JP7303690B2 |
To facilitate collection of the target groundwater.A collection water device 1 comprises an in-hole valve 30 that prevents the back flow of groundwater from a pumping section 12 to a strainer section 11, a water sampling pipe 50 that lea...
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JP7303720B2 |
To realize a technique capable of simply and quickly presenting a stratum structure of a site to be constructed, through one step of a construction.A stratum structure analysis system 10 comprises: a data acquisition portion 11 which acq...
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JP7303145B2 |
To propose a ground survey device that can conduct ground surveys with good workability and low cost.A ground survey device of the present invention includes an inner body 2 and a fixed body K1. The fixed body K1 comprises: a plurality o...
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JP7300904B2 |
To provide a groundwater observation device installation method and a groundwater investigation method that can properly install a groundwater observation device, without performing well construction, in a borehole for which the hole wal...
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JP2023091466A |
To provide a method for measuring a coefficient of earth pressure at rest of ground capable of measuring a highly-accurate coefficient of earth pressure at rest in a simple and low-cost manner.A method for measuring a coefficient of eart...
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JP7299534B2 |
A measurement system for measuring a subgrade reaction coefficient of a plurality of layers having different depths in a ground is provided. The system includes an object provided on a ground surface of the ground. An earth pressure gaug...
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JP7299138B2 |
To provide a position determination system of a ground support layer requiring no complicated processing to a construction facility and capable of more securely grasping a depth position of a ground support layer, and to provide a ground...
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JP7297217B2 |
To provide a penetration rod in which fastening between a first rod and a second rod is easily released.A penetration rod 18 rotated to penetrate a ground comprises a first rod 22 and a second rod 23. The first rod 22 includes: a base po...
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JP7297202B2 |
To provide a standard penetration testing device which has enhanced durability by reducing a damage on a rotary encoder even when an impulse by a hammer generates, which has enhanced reliability by digitalizing a measurement value of a s...
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JP2023085682A |
To provide a principal stress calculation program capable of solving problems of conventional arts, that is, relatively easily obtaining principal stress of anisotropic rock mass from a result of an original position test, and a principa...
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JP7293552B2 |
To improve the measurement accuracy of the shape of a ground improvement body and detect buried objects.A measuring device 100 comprises: a rotating rod 30 that is inserted into a ground improvement body 50 before hardening; a transmitte...
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JP7293449B1 |
An object of the present invention is to determine the soil name of determination target soil. A soil determination device includes a control unit and an auxiliary storage device. The auxiliary storage stores learned models. The trained ...
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JP2023081664A |
To provide a penetration testing machine which has high measurement sensitivity, is resistant to an influence of the surrounding environment, and has high durability, when determining soil quality by a sound signal, a soil quality determ...
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JP7289271B2 |
To provide a viscous soil characteristic estimation method reduced in time required for estimation of characteristics related to at least any one of compaction and strength of the viscous soil.An information processing device (200) perfo...
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JP7286482B2 |
To provide a geological survey device and a method which can easily investigate geology even when a borehole is an oblique hole.A geological survey device comprises: a hollow stick-shaped rod 11b that can be moved in and out of a borehol...
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JP7284858B1 |
A capsule-type sensor can be easily buried in the ground by means of an burying hole, which eliminates the need for civil engineering and construction machinery and incidental equipment, thereby improving the flexibility of burying condi...
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JP2023074629A |
To provide a constant identification program capable of defining constants of a model formula without spending effort and time.A constant identification program makes a computer 31 execute an input acceptance process, an analysis value c...
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JP2023074949A |
To reproduce a liquefaction strength curve, and simultaneously and more accurately reproduce characteristics indicating a shear strain development process than a liquefaction parameter estimated from only the liquefaction strength curve....
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JP7278673B2 |
Provided is a method for determining the safety of a subway fracture zone after curtain grouting, comprising the following steps: determining the equivalent radius dp of a fracture zone on a plane; determining the calculated equivalent r...
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