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JP3170641U |
To provide a screw point capable of preventing the occurrence of breakage in a connecting portion when a circumferential rotational force or an axial load is applied. A screw point 1 has a stepped shape having a large diameter portion 12...
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JP4776031B2 |
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JP4777474B1 |
To provide a field vane test device equipped with an electric gear, and by mounting an electric gear and a torque measuring unit in a linked manner inside a vane protection shoe, the test depth is not limited. It is for providing an elec...
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JP4771173B2 |
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JP2011174767A |
To provide a method for measuring a moisture content in the depth direction of a ground which enables measurement of the distribution of the moisture content (saturation rate) in the depth direction of the ground and enables grasp of a s...
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JP2011174313A |
To provide a bearing capacity measuring device of a hydraulic press-in machine capable of measuring a bearing capacity of the ground while pressingly placing a pile like a steel pipe sheet pile, and recording and controlling the bearing ...
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JP2011174768A |
To derive the distribution of a moisture content (saturation rate) in the depth direction of a ground.Heat is given to the ground 1 by a heating wire 4 and the amount of temperature rise corresponding to the depth is measured by an optic...
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JP2011174340A |
To provide an automatic penetration test machine which measures a load actually applied on a penetration rod, and performs correction for the application of a desired load by feeding back the measured load.The automatic penetration test ...
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JP4769777B2 |
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JP4765616B2 |
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JP2011169021A |
To provide a soil sampling pipe device which can increase soil capture efficiency, and which enables soil sampling in a plurality of locations on the periphery of an outer pipe.This soil sampling pipe device includes: the outer pipe 11 w...
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JP2011169022A |
To provide a soil sampling pipe device capable of maintaining watertight performance of the inside and outside of an inner pipe in the closed state of a soil capture hole.This soil sampling pipe device 1 includes: the outer pipe 11 which...
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JP2011163010A |
To provide an air cylinder type foundation strength investigation machine which can investigate accurate foundation strength by inhibiting a penetration body from rapidly self-settling into a soft layer of ground.This swedish-weight-soun...
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JP4756213B2 |
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JP4757092B2 |
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JP4749194B2 |
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JP4750267B2 |
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JP4751967B1 |
To provide a method for manufacturing a screw point which can be efficiently manufactured and can reduce the cost. In a method of manufacturing a screw point 10 composed of four screws as if a quadrangular pyramid is twisted, a parting l...
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JP4744586B2 |
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JP4738575B2 |
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JP3169256U |
To provide a water level measuring device capable of accurately and efficiently measuring a groundwater level in the ground by a simple configuration and operation. In a groundwater level measuring device equipped with a water level meas...
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JP4721360B2 |
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JP2011128320A |
To provide a compact and portable liquefaction experimental device which enables a learner to reliably and qualitatively experience a liquefaction phenomenon and have right images before and after the liquefaction phenomenon.The liquefac...
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JP4714644B2 |
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JP4705520B2 |
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JP4707863B2 |
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JP4709631B2 |
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JP4704848B2 |
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JP4709034B2 |
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JP4707519B2 |
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JP2011117172A |
To provide a method for checking an end bearing capacity of a cast-in-place pile, which enables a loading reaction force to be obtained by dispensing with a reaction pile and a reaction girder, which enables the acquisition of informatio...
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JP4703909B2 |
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JP2011112641A |
To provide a penetration rod for determining the quality of soil by measuring the true specific resistance of a foundation at each level of depth in the ground and evaluating the property of the foundation on the basis of the value thus ...
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JP4697634B2 |
To provide an investigation method of underground contamination which makes a small number of times enough for investigation, enables investigation even in a region covered with a building or the like, and simplifies excavation work. Whe...
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JP4694513B2 |
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JP4694728B2 |
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JP2011106843A |
To infer the strength of improved ground which is an object improved by chemical injection using an active-silica-based chemical, from its early age after the improvement, with accuracy.A vibrator sensor capable of generating and receivi...
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JP4692883B2 |
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JP4689702B2 |
A water level recovery observation apparatus is provided to shorten the time required for the field hydraulics test, and to observe the water level recovery effectively regardless of the water permeability of a medium. A water level reco...
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JP4678018B2 |
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JP4675756B2 |
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JP4674761B2 |
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JP4662192B1 |
To protect a drilled portion necessary for ground improvement and ground investigation on a runway or the like, maintain a function of the runway or the like, and prevent a human error such as forgetting to tighten a lid. A protective ca...
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JP3166873U |
To provide a rod and a rod joint which can prevent the occurrence of breakage in a connecting portion and can effectively utilize a rod forming material when a rotational load is applied. A rod joint 1 is a rod joint for connecting rods,...
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JP4652212B2 |
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JP3166459U |
To provide a penetrating rod which is not damaged even when an impact is applied toward a tip portion side along an axial direction. In a penetration rod held by a chuck device for use in a penetration test, a screw point provided at the...
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JP4642507B2 |
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JP4640671B2 |
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JP4642070B2 |
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 combination, an anti-friction sleeve enclosing th...
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JP2011038338A |
To rationally and consistently evaluate ground deformation associated with fluctuation of the underground water level.This ground deformation analysis device includes a means for classifying the ground of predetermined depth to be analyz...
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