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JP4010642B2 |
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JP4012855B2 |
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JP4009222B2 |
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JP3999722B2 |
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JP4002228B2 |
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JP3136057U |
To drive a portable drill which is economical and highly safe and has high mobility in soil contamination survey boring and can easily pull up a sampling pipe without a separate device such as a jack. I will provide a. A drill head 4 mad...
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JP3986388B2 |
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JP3135764U |
To provide a wire line core sampling device for a rotary percussion drill capable of reliably sampling a core on soft ground. An outer tube assembly to which a drilling bit for cutting out a core is attached at a lower end and a sampler ...
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JP3983345B2 |
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JP3971015B2 |
To provide a rock-core extracting core barrel not to roughen an excavated hole wall by the flow of a sludge. A second outer tube assembly 12 is unitedly provided through water passing gaps 23, 25 inside a first outer tube assembly 11 to ...
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JP3968735B2 |
To construct a highly precise pile foundation by a method wherein gathering of earth from walls at a pile bore is executed correctly during excavation or after excavation without interfering with excavation works. Cylindrical bodies 8, e...
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JP3965591B2 |
To prevent a core from flowing out owing to circulation water even in a soft ground and securely obtain samples, by protruding the front end of a sampler from the core bit by the urging force of a spring to contact the excavating ground ...
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JP2007132058A |
To provide a sampling method and sampling equipment which are suitable for the collection of a sampling from the ground etc.The sampling equipment 10 enables a sampling pipe 11 to penetrate a sampling area 1 in which the sampling is coll...
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JP3914248B1 |
To obtain a soil sample sampler in which the influence on the ground around an underground hole is eliminated as much as possible by avoiding injection of muddy water or air bubbles into the ground. The outer pipe is composed of a rotary...
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JP3913930B2 |
To allow to take an unhardened sample of improved soil quickly, definitely and easily as it is without compressing from a predetermined position immediately after the work with an apparatus of a relatively simple configuration when takin...
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JP3129742U |
To provide a core sampling device capable of easily taking out a soil sample from a long tubular sampling tube, observing the state, and performing cleaning reliably and easily in a soil contamination survey boring. This is a sampling tu...
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JP2007039998A |
To provide a sampler for investigating soil contamination having no possibility of outflow of sediment even when water is supplied to the distal end.This sampler comprises an outer tube, a first head threaded to the upper end of the oute...
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JP2006322141A |
To provide a sampling device with little disturbance capable of easily sampling a sample with little disturbance at a cutting face of a tunnel.The sampling device with little disturbance is equipped with the front outer pipe 1 excavating...
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JP2006291571A |
To protect the wall of a hole by installing a casing at the same time as a sampler excavating operation is performed.A core tube 2 and a boring rod 4 are inserted into the casing 1, and the casing 1 and the boring rod 4 are integrally co...
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JP3832605B2 |
To provide a sampler that can positively extract a sample of the weak ground without needing a large-scare attachment. An intermediate tube 34 is arranged at the lower part of a core tube 16, and both tubes are connected to each other by...
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JP3803338B2 |
To attain an increased efficiency of work and the maintenance of a hole wall by using a submerged type boring machine in the sea bottom and adapting a wire line system. This wire line core sampling device uses a boring rod held by the ch...
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JP3799699B2 |
To solve the defect of slipping-off from a set place of a core inner tube assembly that in an conventional art, a latch is closed by a maloperation by vibrations during excavation and excess back-flow water during excavation works after ...
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JP3793763B2 |
To provide a structure capable of certainly picking the soil sample in the whole layer into which a soil sample picking device is pressed without causing disturbance. A plurality of hollow short cylindrical sample picking pipes 3a-3h are...
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JP3785340B2 |
To integrally take the whole body of a core including its front end in an inner tube by releasing the core from a state where the front end of the core is pinched by means of a core lifter. The core 10 is made to enter into the inner tub...
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JP3781208B2 |
To provide a tube assembly for collecting good cores (samples) not stirred at all times by forming a slit in the axial direction of an inner tube having the inner dia. whose size is the same as the inner dia, and forming a chamfered part...
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JP3772880B2 |
To provide a vertical direction water permeability test device equipped with an intrusion distance decision mechanism of an unagitated sample taken in. The intrusion distance decision mechanism provided with an intrusion distance decisio...
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JP3772218B2 |
To perform work, wherein a soil sample penetrating into a soil sampling tube is gathered by making the soil sampling tube penetrate into soil by a predetermined depth and pulling it out, in a labor-saving manner by man power. A handle ha...
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JP3765093B2 |
To simplify the structure of a wire line unit, by fitting loosely a piston provided in a core barrel head of a recessed part provided in a guide coupling and confirming the set condition. This set confirmation device is constituted of a ...
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JP3765091B2 |
To provide an overshot for use with a wire line sampler which is easy to unlatch, when drilling the ground with a boring machine and sampling a sample core. A main shaft 44 resiliently energized via a cylinder body 43 and a compression c...
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JP2006070619A |
To provide a core sampling boring method superior in deoxidation efficiency more than a conventional oxygen free water generating system, and including inert gas of the optional mixing ratio in response to a sampling-boring advancing con...
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JP2006045932A |
To provide a joint for an excavating pipe of soil sampling equipment, which can facilitate the connection and disassembly of a connecting pipe constituting the excavating pipe of the soil sampling equipment.This joint is equipped with an...
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JP2006045872A |
To provide soil sampling equipment capable of simplifying a constitution.This soil sampling equipment comprises: a cylindrical excavating pipe 13 with both opened ends 11 and 12; an excavating blade 14 which is provided along an outer pe...
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JP3733492B2 |
To shorten a freezing time by a method wherein an auxiliary freezing means is juxtaposed together with a freezing pipe up to a required depth section from the lower-end site of a guide pipe to a lower section, a refrigerant is circulated...
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JP2005325577A |
To collect a soil sample with an arbitrary length till a necessary depth without recovering a core tube of a sampler on the ground.A top end bit 3, the core tube 2, and a coupling head 5 are screwed to the sampler 1. The core tube 2 is s...
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JP3676292B2 |
To provide a core-sampling apparatus of a double-tube structure for use in geological survey, which has its upper-stage tube of an inner pipe divided into half bodies, but maintains the cylindrical shape of the half bodies during core-sa...
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JP3676279B2 |
To provide a core sampling apparatus which is constructed such that fluid flowing through a fluid passage is discharged to an area other than a coring area before core enters an inner pipe. The core sampling apparatus is constructed in t...
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JP2005155108A |
To provide a safe and efficient core sampling method of the sea bottom ground for reducing a piloting burden and cost.This core sampling method comprises a process of seating and arranging a sea bottom core sampling device on the sea bot...
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JP2005155109A |
To provide an undersea core sampling device, a method and an undersea seated boring machine capable of increasing reliability of the undersea core sampling, safety, efficiency and economic efficiency.In order to sample a sample of the un...
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JP3648641B2 |
PURPOSE: To fulfill a function as a function as a guide tube, and prevent the separation of the guide tube from ground by circulating a coolant through a freezing tube for freezing the ground, and inserting a core tube for collecting the...
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JP2005082998A |
To provide a soil sampling device, which can facilitate collection in a narrow place without generating a large noise or vibration, precisely discriminate and collect the soil in a surface layer and the soil in a place having a large dep...
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JP2005060955A |
To provide a sampler in the ground capable of efficiently and accurately investigating a state of contamination.The sampler 1 in the ground approximately comprises a hollow cylindrical boring pipe 2 and a sampling attachment 3 provided t...
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JP2005036570A |
To provide a point penetration testing method using a dynamic cone penetration testing machine and a penetration testing machine used for the method capable of measuring N-value of more accurate ground in a state to have no circumferenti...
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JP3602069B2 |
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JP2004339840A |
To simultaneously collect soil samples at two places in a surface layer and a deep layer by using a structurally simple device.A core tube 1 for the surface layer is fixed to an outside holder 32 by means of a chuck 5. A core tube 2 for ...
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JP2004316353A |
To provide a core sampling technique capable of shortening the time required for sampling a geological core and capable of surely sampling the core under an accurate state.A core sampler 1 has a cylindrical casing 2 having an excavating ...
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JP2004278147A |
To provide a sampling method and device of soil capable of accurately examining soil by securely preventing falling of soil.By driving a long sampling member 16 with a substantially U-shaped cross section and an enclosing member 18 enclo...
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JP3567207B2 |
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JP2004204588A |
To provide a geological sampler preventing the intrusion of cuttings into a sample.A core bit 3 constituting the geological sampler has a cutting edge 13 formed with a cylindrical inner excavating face, outer excavating face and an annul...
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JP2004183392A |
To efficiently and correctly conduct survey of a contamination state in the ground.There is provided an underground sampling device 1 mainly formed of a hollow cylindrical boring pipe 2 and a sample taking attachment 3 arranged at the ti...
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JP2004169398A |
To provide a sea bottom sitting type geological sampling device which is lightweight and excellent in workability and can stably sit on the sea bottom.The device is for geological sampling by a boring machine (not illustrated ) loaded on...
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