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JPWO2017146170A1 |
By digging the seabed ground A with the excavation cylinder 31, a circular annular groove 50 is formed, and a cylindrical geological sample planned portion 51 is formed inside the annular groove 50 in the radial direction. Next, the samp...
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JP6433338B2 |
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JP2018145599A |
To provide a sampling method of soil samples for quickly lifting frozen soil without cutting work (coring) of the circumference of a frozen soil sample (frozen soil column), and a sampling device.A sampling method of soil samples compris...
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JP6388306B2 |
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JP6371265B2 |
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JP6370271B2 |
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JP2018091124A |
To solve a problem in which: in an embankment structure, when a plurality of specimens that are collected in a depth direction as conventional are used, it is impossible to accurately determine soil strength based on Mohr's stress circle...
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JP6322719B2 |
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JP6309695B2 |
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JP6307177B2 |
The invention relates to underwater drilling for procuring and analyzing ground samples of a bed of a body of water. An underwater drilling device placed onto a bed of the body of water. By a drill drive a drill rod composed of at least ...
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JP6296451B2 |
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JP6288707B2 |
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JP3213235U |
[Subject] A direction and height of an inner pipe can be set up easily and a core extraction device which can shorten discontinuation time by core recovery sharply is provided. [Means for Solution] Outside pipe 23 which was connected wit...
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JP6184899B2 |
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JP6176847B2 |
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JP6149057B2 |
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JP6108675B2 |
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JP6095217B2 |
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JP6048934B2 |
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JP6016419B2 |
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JP5986764B2 |
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JP5920739B1 |
[Subject] The present invention is to acquire the foundation sampling equipment and the foundation sample extraction method the 3 phases of Solid , liquid, and mind are mainly extractable [in the state near the original foundation] from ...
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JP5792186B2 |
A methane content of a bottom sample comprising methane hydrate crystals is determined by:—taking a core sample (5) from a bottom sediment (3) in a deepwater area;—storing the core sample (5) in a storage chamber (4);—lifting the s...
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JP5753289B2 |
To provide a mineral sampling kit for mineral monocrystal collection for easily sampling only a crystal portion of a mineral by including a plurality of sampling members having different inner diameters and replacing to a sampling member...
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JP2015504994A |
A system for excavating underground perforations at seafloor locations is provided. The system downhauls a drilling unit for the submarine position that can be remotely controlled from the water to drill a drill using a drill string, and...
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JP2014173303A |
To provide a core sampling device capable of sampling a core of good quality while preventing the core from being disturbed when the core is sampled.In a core sampling device which samples a core inside of a core tube, the core tube is c...
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JP5571593B2 |
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JP5520643B2 |
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JP5511642B2 |
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JP5510958B2 |
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JP2014073624A |
To enhance working efficiency of a series of drilling operations including a setup for preventing a core from falling on a construction site, by greatly shortening time for the setup.Before a through-hole TH is formed on a concrete floor...
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JP5386136B2 |
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JP5390206B2 |
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JP5379858B2 |
A system for coring an underground formation surrounding a borehole, comprising: a tool body that can be positioned in the borehole near the formation to be cored, the tool body including a motor; a rotary drive head connected to the mot...
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JP5342744B2 |
To prevent various pipes etc. embedded in a concrete structure from being cut or damaged, when boring the concrete structure. This boring method is to form a hole in the concrete structure 65 employs a columnar grinding wheel bit 55 whos...
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JP5305522B2 |
To provide a coring technique capable of preventing a core from coming off even in a super weak nature of soil containing much moisture, and capable of supporting sufficiently and recovering surely the core. This coring device is formed ...
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JP5273647B2 |
To restore a paved road in a short time, to reduce delivery cost by eliminating the excessive manufacturing and delivery of a paving mixture, and to suppress the generation of industrial waste. This paving mixture delivery system for del...
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JP5230576B2 |
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JP2013036192A |
To provide a sleeve storage-type wire line core barrel capable of properly collecting a core by shortening the length of a leading end of an inner pipe part, in which the core is not stored in a sleeve, to the utmost to inhibit core clog...
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JP5124010B2 |
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JP5124009B2 |
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JP2012233325A |
To provide a borehole excavation method capable of easily reducing a viable bacteria count in excavated water used in an excavation process and obtaining a core and a groundwater sample with reduced microorganism contamination without re...
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JP5079835B2 |
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JP5058043B2 |
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JP5031278B2 |
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JP5025034B1 |
To provide an orientation confirmation head capable of collecting a core having information on an orientation. A baby rod (26) housed in a boring rod (10b) fixed to an outer head (10a) is provided so that the baby rod can rotate together...
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JP5023758B2 |
To provide a sand sampling device capable of sampling easily sand of a deep part, even when it is a narrow location. This device is equipped with a cylindrical body 2 formed elongated in the vertical direction, and knocked into the sand;...
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JP4926295B1 |
To provide an orientation confirmation device capable of collecting a core having information on an orientation. It is provided with a boring rod fixed to the outer head and having an orientation confirmation mark at the upper end, and a...
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JP2012012928A |
To eliminate a displacement in the direction of a collected core, which is caused by a twist in an inner pipe due to co-rotation with an rotating outer pipe, when it is intended to collect a core with a known direction by use of a double...
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JP2012012919A |
To solve the problem that conventional double-pipe-type sampler devices tend to face sampling anomalies because links between their tip tools for storing cores are likely to loosen, and the devices are also not suitable for collecting co...
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