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JP6731309B2 |
To propose a pile performance evaluation method capable of simply evaluating performance of a pile.A pile performance evaluation method includes acquisition processing S10, estimation processing S12, and evaluation processing S14. The ac...
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JP6721914B2 |
To provide a progress of a soil investigation in real time.A server device 20 comprises: means 23 correlating position data of an investigation land and investigation status data indicating a progress of soil investigation with each othe...
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JP2020101069A |
To provide an evaluation method for foundation capable of estimating ultimate bearing power qt of the foundation from a measurement value by a rotational penetration test.An evaluation method for foundation executes regression analysis i...
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JP6716710B2 |
The present invention relates to a method for predicting the specification of a steel tower foundation comprising the steps of: measuring an electric field in the ground near a foundation buried to support a steel tower; calculating a re...
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JP2020094350A |
To obtain information on the number of impacts without using an acceleration sensor, and to properly confirm that a tip of a drill hole has reached a bearing layer when forming the drill hole for inserting a pile such as a steel pipe pil...
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JP6712105B2 |
To provide a soil character sampler with good work efficiency that does not drop collected soil from the bottom edge of a pipe while the pipe is pulled up onto the ground.A soil character sampler 60 comprises a drill 70 which is a rod-li...
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JP2020090881A |
To provide a ground displacement observation system which early detects ground surface displacement accompanied by earth slide of a ground to be observed without a need for an operator to enter into a dangerous slope that has a possibili...
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JP6699135B2 |
To provide an electric specific resistance detector and a quality management method for a soil cement body using the electric specific resistance detector when constructing the soil cement body in a ground, the electric specific resistan...
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JP6696787B2 |
To propose a teacher data making method capable of providing teacher data of a frequency band suitable for determining geology in impact hole- drilling, and a ground evaluation method using the teacher data.A teacher data making method c...
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JP6692554B1 |
To suppress data falsification when uploading a data file generated by a ground survey machine or the like to a server device. A geotechnical investigation data transfer system includes a wireless communication module 3 equipped in a geo...
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JP6692206B2 |
To provide a bedrock evaluation method capable of quantitatively evaluating a bedrock at high accuracy.A bedrock evaluation method includes: a physical property value acquisition step S11 for acquiring a physical property value of a spec...
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JP6692132B2 |
To propose a method and a system for measuring displacement, which enable simple measurement of displacement of the foundation at a blind position.The displacement measuring method for measuring a displacement amount of a measurement poi...
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JP2020067276A |
To provide an electrical measurement stake used to perform electrical measurement such as specific resistance measurement in a simple way, and an electrical measurement unit.An electrical measurement stake 1 comprises: an insulated pipe ...
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JP6687841B2 |
To provide a collection device and a collection method without disturbing a field in a hole, by collecting only a sample of a desired depth position without mixing a pile hole filler of an undesired depth position.A collection device for...
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JP6687207B1 |
To determine the possibility that a ground survey data file is derived from an inappropriate ground survey work. An information processing device is transmitted from an external database device together with a transmission request of a p...
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JP6686568B2 |
To provide a pile loading test apparatus capable of executing a pile load test even in a narrow and small area using a general anchor pile which has no special shape and does not require to be inserted up to a front-tip support layer.A p...
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JP2020051072A |
To provide a water intake structure capable of extracting groundwater from each of plural aquifers of different depth of underground formation by using a single borehole.The water intake structure 1 according to the present invention is ...
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JP6672977B2 |
To increase estimation accuracy of a ground characteristic.There is provided a ground estimation method for estimating a dominant frequency of a ground having a hard bedrock below a ground surface. The ground estimation method includes: ...
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JP6670669B2 |
To generate a liquefaction strength curve at a high accuracy even when a number of specimens is small.A first arithmetic operation section 20 of a liquefaction strength curve generation device 14 calculates energy consumption by a specim...
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JP6670596B2 |
To provide a closing method of a storage part capable of inexpensively performing the closing of the storage part and effectively preventing the storage part after closing from the immersion of rainwater in a final disposal site of waste...
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JP6667263B2 |
To provide an oscillatory impact-type light-weight ground investigation machine and an oscillatory impact-type ground investigation method, the oscillatory impact-type light-weight ground investigation machine being capable of investigat...
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JP6668773B2 |
To sample interstitial water so as not to be exposed to the air as much as possible.A water sampler 1 includes: a syringe 20; a filter 10 connected to the syringe 20; and a plug 30 provided on a passage from the filter 10 to the syringe ...
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JP6664649B1 |
To reduce the work load of a standard penetration test. A standard penetration test device 1 is provided so as to be retractable from a measurement position for obtaining an N value, and an excavator D holds or releases a rod R connected...
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JP6661160B1 |
To reduce the work load of a standard penetration test. A standard penetration test device 1 has an excavation mechanism 3 for excavating a hole in the ground with an excavator D by lowering the holding rod R while rotating it, and a rod...
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JP6663324B2 |
To enable monitoring of groundwater at an inner part of a hole.A boring hole 4 is formed by drilling with a first pipe (a drilling pipe) 3 having a drilling unit 2 (including a drilling bit 2a) fitted at a tip, and then a first pipe 3 is...
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JP6656724B2 |
To provide a liquefaction determination method capable of easily determining liquefaction by accurately calculating liquefaction resistance ratio using a small number of constants without carrying out boring survey or sampling, etc.The l...
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JP6652872B2 |
To provide a numerical analysis method of an underground water flow allowing a prompt prediction analysis with less computation load to be performed and further enabling the influence of a pressure loss inside a borehole to be considered...
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JP6631953B2 |
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JP6619235B2 |
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JP6618135B1 |
To provide a sampler capable of suppressing rotation of an inner tube and improving the quality of a collected sample by sharing a rotation prevention function and an expansion / contraction function, which were conventionally carried ou...
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JP6614549B2 |
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JP6617022B2 |
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JP6613430B1 |
Provided is a rapid loading test device for piles capable of quickly catching a weight that falls on a pile head and jumps up in the air. A weight catching device 5 that catches the weight 3 that has fallen and jumped up on the pile head...
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JP6609787B1 |
To provide a multi-parameter comprehensive monitoring device for deep sea bottom turbidity current. The present invention mainly includes four parts: cement pile pore water pressure monitoring, turbidity optical monitoring, float flow ve...
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JP2019199766A |
To provide a ground permeability testing device that can reliably measure permeability even when grounds to be measured have high permeability.A plurality of water inlets 11b to 11f are provided at regular intervals in a circumferential ...
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JP2019200112A |
To provide a bedrock evaluation method capable of evaluating a coefficient of strain being hard to be affected by cracks without carrying out uniaxial compression test.A bedrock evaluation method includes the steps of: arranging a circul...
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JP6604857B2 |
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JP6604575B2 |
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JP6596626B2 |
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JP6595937B2 |
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JP6589549B2 |
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JP6588585B2 |
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JP6580467B2 |
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JP6567440B2 |
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JP6559019B2 |
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JP2019127682A |
To efficiently measure a ground state.A ground compaction degree measuring system 100 comprises an RI instrument 20 measuring a state of ground 1, a 3D scanner 30 measuring an irregularity degree of the ground 1, and a determination part...
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JP6548515B2 |
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JP6547317B2 |
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JP6549030B2 |
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JP2019112820A |
To provide a penetrating rod which allows an operator to easily connect the rods to each other.In a penetration rod 1, a fitting shaft 22 is integrally formed at one end of a rod 20, and a fitting hole 23 into which the fitting shaft can...
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