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JP3004989B1 |
[wrap up] [Task] Providing technology that enables the sampler to be continuously pushed in for the required length at a uniform speed and efficiently and satisfactorily obtains undisturbed soil samples. A rod stop chuck 4 that grips the...
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JP2992815B2 |
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JP2988140B2 |
PURPOSE: To gather, without digging a hole by motive power, a geological sample of a body surface in a celestial body except the earth. CONSTITUTION: A penetrator 4 of large length is mounted in a downward direction to a bottom surface o...
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JP2981542B2 |
A soil sampling apparatus includes a sampling box for penetrating the ground first, and a shutter plate for subsequently penetrating the ground while engaging with the sampling box, thereby sampling soil layers located in a space surroun...
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JPH11236709A |
To enable an inside pipe for storing a sample (core) to surely prevent the rotation thereof. An inside pipe rotating prevention core tube sampler is equipped with a sampler head 2 having a joint section 2a1 for connecting with a boring r...
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JP2940424B2 |
PURPOSE: To provide information on the subsoil in an excavation cross sectional area by forming a forward searching device out of a easing driven and inserted into the natural ground at a position forward thereof, a front boring machine,...
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JP2934641B2 |
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JPH11200757A |
To inhibit the damage of a natural ground, to improve the sampling ratio of a core and to carry out efficient drilling by supplying a small amount of fresh water without using a pump while excavating the ground by a but installed to the ...
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JP2922427B2 |
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JP2922434B2 |
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JP2919833B1 |
[wrap up] [Task] Even in the ground such as unconsolidated layers and crushed zones, the wire line method enables high-quality cores to be collected with good workability without being disturbed. The wire line core barrel 30 includes an ...
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JPH11173054A |
To improve a sampling function by providing a bellows for pushing a sample in a sleeve for wrapping the sample arranged in the inside of an inner pipe. An inner pipe 14 with a shoe is contained into an outer pipe with an excavating bit 1...
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JP2908371B2 |
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JP2903350B2 |
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JP2903179B2 |
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JP2892123B2 |
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JPH11117655A |
To easily conduct an exact geological survey. This device is provided with a device part 12 rotated and advanced in an excavating direction by being struck with an air hammer 36 inside an excavation pipe 10; a cylindrical bit part 16 whi...
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JPH11101083A |
To extract an undisturbed sample by dry drilling, and easily perform pressing-in and withdrawing of a sampler even if collecting depth of the sample is deep. After drilling up to fixed depth by a hollow auger 1 with an openable/closeable...
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JP2881758B2 |
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JP2873043B2 |
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JPH1171744A |
To obtain a geological sample of a soft ground without disturbing it, by holding the sample into the inside from the lower end opening of a square- cylindrical sample case pushed in the bottom of an excavated hole and closing the lower e...
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JP2860600B2 |
An apparatus which gathers earthen cores dug out by a boring machine operates with a main conveyor belt and auxiliary conveyor belt which are partially forced in contact with each other so as to sandwich earthen cores inbetween and trans...
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JP2839755B2 |
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JP2821550B2 |
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JP2814205B2 |
PURPOSE: To accurately and simply collect a sample of a stratum at every place. CONSTITUTION: The sampling apparatus consists of a sample housing pipe rod 13 inserted in a cylindrical casing 2 embedded in a sampling stratum G and having ...
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JPH10205265A |
To attach a composite crown/bit device having an excavation bit, a sampling tube and a driving mechanism thereof to a rod of a boring device and to make it possible to execute sampling in a series of operation after the excavation. An ex...
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JP2576249Y2 |
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JP2772449B2 |
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JP2769907B2 |
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JP2759174B2 |
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JPH10131659A |
To shorten the unwrapped distance of a core to be wrapped with a bag body at the time of the core being collected into a core barrel. An inner tube 13 is provided inside an outer tube 12, and the tip part of the inner tube 13 is provided...
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JPH10131660A |
To easily pull out a wedge from between a pair of latch main bodies and prevent the risk of the wedge slipping out of a pair of latch main bodies due to vibration. A landing ring 16 provided at the inner peripheral surface of an outer tu...
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JP2750274B2 |
PURPOSE: To enable the easy and rapid excavation of a relatively narrow and shallow shaft such as a shaft excavated at the time of constructing a domestic sewage pit, for instance. CONSTITUTION: A cylindrical excavating pipe 1 is erectly...
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JP2746858B2 |
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JP2746836B2 |
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JP2569942Y2 |
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JP2736689B2 |
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JP2722194B2 |
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JPH1061365A |
To sample a boring core that is not disturbed and to detect its azimuth at its original position. This core sampling device includes a freely rotating outer tube 12 with a cutting bit 10, an inner tube 18 enclosing a core 16, a core reta...
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JPH1046562A |
To provide a device which can be applied even to core gathering by an excavation hole by only rotation and is optimal for a RPD fast in hole excavating speed and from which a core does not fall off. A core trap 64 is internally inserted ...
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JP2706637B2 |
PURPOSE: To attain smooth seating by installing a circumferential seating means to the interior wall of a tubular member and mounting a surface formed so that a cutting means is slid to the tubular member in response to the lifting and l...
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JP2706636B2 |
PURPOSE: To mount and demount a bit by disposing an insert into a ground drill and moving a cutting means between the position of installation, where the cutting means is held by the insert, and the position of recovery, where the insert...
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JP2706639B2 |
PURPOSE: To exchange cutting means composed of a plurality of segments as they are left as they are brought to the state of operation. CONSTITUTION: The tool contains a carrier means in which segments 22 can be charged for carrying the s...
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JP2706638B2 |
PURPOSE: To attain smooth exchange by shaping one side face of a shank section supported to the interior wall of a ground drill, extending from the cutting surface of a segment relatively slidably to the ground drill in response to the l...
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JP2704663B2 |
Manhole cutter for cutting a circular groove of a fixed depth about a manhole, such as in a street, and removing the manhole from the street. The manhole cutter is suspended from a front-end loader or truck-mounted boom and rotated hydra...
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JP2696472B2 |
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JP2695991B2 |
A tool (20) is described for transporting cutting segments (22) to and from a ground drill (12) to enable in situ replacement of the cutting segments (22). The ground drill is provided with seating means (30) for seating the cutting segm...
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JP2667732B2 |
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JP2663035B2 |
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JPH09100691A |
To save the labor for collecting work of asphalt core. A guide ring 12 for guiding a core bit 6 on the tip of an electric drill 1 is formed. Footrest parts 15 are integrally provided on both lateral sides of the guide ring 12. A worker p...
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