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JP2019515158A |
A device (2) for forming trenches on the seafloor and / or moving material on the seafloor is disclosed. The device has a body (4) and a front skid (12) that is attached to the body to engage and support the body on the seabed. The front...
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JP6526187B2 |
A vibrating ripper, according to the present invention, has: a main body portion; a vibrating body which is coupled to the main body portion and a vibrating body support unit and vibrates; and a vibration generating unit which is provide...
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JP6510636B2 |
Apparatus for removing sludge from an underwater deposit comprises a blade having a cutting edge that points forwards and a blade surface to the rear of the cutting edge that faces the interior of a housing. Nozzles are positioned and or...
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JP6498484B2 |
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JP6495004B2 |
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JP2019049122A |
To perform sufficient reinforcement against stress received by a buried manhole, while reducing reinforcement operation and material cost.A reinforcement method of a rectangular manhole of this invention comprises: providing a band-like ...
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JP6480752B2 |
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JP6482499B2 |
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JP6472412B2 |
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JP2019504222A |
The injection system of the submarine trench excavator (20) has an injection conduit (50) extending behind its trench cutting injection sword (30). After the trench (F) has been excavated by the jet sword (30) cutting nozzles (31, 33, 35...
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JP6463131B2 |
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JP6451713B2 |
Provided are an excavating apparatus and an excavating method which are capable of reducing a shear force to be applied to a fastening member fixedly fastening an excavation blade plate and a chain together. A trench excavator serving as...
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JP6447603B2 |
Provided are an excavating apparatus, an excavation blade plate and an excavating method which are capable of reducing a shear force to be applied to a fastening member fixedly fastening the excavation blade plate and a chain together. T...
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JP6450253B2 |
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JP6435073B1 |
To control a buoyancy generated by sending compressed air to a casing by a suspension capacity of an existing construction facility, and to secure a construction quality equal to or higher than that of the prior art. A casing press-fitti...
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JP6434883B2 |
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JP6434882B2 |
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JP2018163114A |
To provide a measuring device or the like capable of easily measuring a position of an object, such as an excavator body.A measuring device 1 measures a position of an excavator body 6 in excavation of a ground 7, is constituted by verti...
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JP6405597B2 |
A nodule collecting apparatus 130 is disclosed comprising a support member 131 and two or more nodule collection devices 132. Each nodule collection device 132 is secured to the support member 131 and is adapted to collect ore nodules fr...
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JP6401570B2 |
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JP6395520B2 |
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JP6378652B2 |
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JP2018115424A |
To provide an underground drawing-in method of a pipe allowing drawing-in of the pipe with a small tractive force and laying the pipe underground.In an underground drawing-in method of a pipe, a diameter expanding reamer 5 attached with ...
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JP2018520281A |
The submarine grooving plow (40) has a chassis (10), threads (30), and traction assembly (70). The traction assembly (70) has a pair of wings (71) extending laterally from each side of the chassis (10). The wings (71) are aligned on an a...
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JP6360713B2 |
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JP3217044U |
To reduce a work man-hour and a work time at a site and to increase the strength of a joint portion between a precast concrete lid and a main body of the underground structure to increase the strength of a precast concrete top plate or a...
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JP6356037B2 |
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JP6338610B2 |
To accurately predict a disaster of a pipe conduit laid underground.A pipe conduit disaster prediction device comprises an input part 12 acquiring a prediction range of an earthquake disaster with a predetermined section as a unit, a pip...
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JP6333058B2 |
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JP6314361B1 |
[Task] It is an object of the present invention to provide a device or a method thereof capable of digging two grooves in a fairway of a golf course and easily providing a running path for a golf cart. Two excavators are provided in the ...
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JP2018062733A |
To provide a technique that allows improvement of maintainability of a working vehicle.A ripper device comprises a first cylinder, a shank and a second cylinder. The shank is activated by the first cylinder and juxtaposed to the first cy...
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JP2018053500A |
To provide a nondestruction type underground pipe reconstruction method which can implement a reconstruction work safely without using a special cutter head to break a steel bar and a steel ring joint.A nondestruction type underground pi...
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JP6306184B2 |
An apparatus including: a tubular suction pile; an indenter housing that surrounds the tubular suction pile, wherein the indenter housing is configured to: (a) be sunk into a seabed in response to a negative pressure created from water b...
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JP2018044338A |
To provide a burial method that enables an object to be efficiently buried in ground.A burial method for an object includes a step of forming a space for arranging the object in ground, and a step of installing the object in the space. T...
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JP6298255B2 |
To provide a lift prevention method capable of being applied as aseismatic countermeasures to either of new and existing underground buried pipes, by using an existing back-filling construction method, without the need for large-scale co...
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JP6298568B1 |
To provide a vertical shaft excavator capable of easily excavating a hard ground when the hard ground is reached during the construction of a caisson skeleton. A device for excavating the ground at the bottom including under the cutting ...
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JP6296084B2 |
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JP2018039494A |
To provide a traction hitch assembly used for a cargo transport traction vehicle.A traction hitch assembly 30 has: a body for fitting the traction hitch assembly 30 to a related vehicle; a first component which is so fitted as to be rota...
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JP2018035558A |
To provide a wheel loader and an adapter, which can be used in plowing.A wheel loader 1 includes a vehicle body (a vehicle body frame 2 and a driving cab 5), an adapter 12 disposed in front of the vehicle body, and a plow 13 fitted to th...
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JP6290291B2 |
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JP6290491B1 |
To provide a method for joining a concrete structure in which a joining state of a plurality of joined concrete structures is suitably maintained even when an external event is received. This is a method of joining concrete structures, i...
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JP6288682B2 |
A self cleaning collecting apparatus and method are provided for the collection of seafloor material. The collecting apparatus, which operates on a seafloor, has a plurality of rotating discs in front of a slurry suction pipe with cleari...
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JP6290290B2 |
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JP6288685B2 |
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JP6284485B2 |
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JP6286300B2 |
To propose a joint structure fixing a water stop securely and enabling a high-quality construction even when a pair of concrete members facing each other via a joint part is constructed at the same time.A joint structure includes a joint...
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JP2018024993A |
To provide a concrete block capable of being connected to another concrete block, even when the concrete block is cut at any position in the longitudinal direction.A concrete block 10 includes a block body 11 having an internal open spac...
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JP2018016998A |
To enhance strength of a connection between a precast concrete cover and an underground structure, while reducing a number of man-hour and work time at a site.A fixing structure for a concrete roof of a hollow underground structure inclu...
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JP2018012925A |
To provide a civil engineering work facility for slope land capable of assisting to the mountain side of a civil engineering work surface even by a large-sized and large-weight work vehicle, while restraining an increase in a facility-ec...
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JP6261066B2 |
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