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Matches 451 - 500 out of 1,626

Document Document Title
JP6006138B2  
JP5928801B2  
JP2016089557A
To provide a concatenated type bearing pile which enables concurrent burying of a bearing pile and a drain member, and a method for burying, dismantlement, and removal of the concatenated type bearing pile.A concatenated type bearing pil...  
JP5844850B2
The invention relates to a rock drilling machine and a method of lubricating a shank of the rock drilling machine. The rock drilling machine (4) comprises a rotatable shank (6) for connecting a drilling tool (7). The shank is rotated by ...  
JP5800587B2  
JP5766079B2  
JP5696920B2  
JP2015030965A
To achieve shortening a construction period, saving of manpower, and energy conservation by operating excavation equipment for a petroleum gas wellhole by automatic control.In a robot boring machine: a drive of a rotary bit 41 and a lift...  
JP5666795B2  
JP2015504123A
The present invention relates to a pile driving device for a pile assembly, with at least one wall tube; a holding frame having a holding mechanism connected to a wall tube inserted into the ground; a press-fitting stand connected to the...  
JP3193894U
To provide a bit for ground excavation in which soil lumps, gravel and the like are less likely to remain in an excavation hole even when a tubular drill is used. A bit is attached to the lower end of a drill pipe, which is the main body...  
JP5606834B2  
JP2014148862A
To provide a drilling machine which allows rotation speeds of an auger screw and a casing to be separately set.A drilling machine 1 comprises: an auger screw 30; a first driving device 10 to rotate the auger screw 30; a cylindrical casin...  
JP5513228B2  
JP2014510862A
A rotation unit, rock drilling unit and method for rock drilling. The rotation unit includes a main shaft that is rotated around its longitudinal axis by means of a rotating motor. The main shaft is supported on a body of the rotation de...  
JP5414208B2  
JP5329561B2
A drilling system comprising a rotatable drill pipe 12 connected to a tractor unit 10, and a steerable drilling system 18, 20, 22, connected to and movable by the tractor unit 10.  
JP2013194435A
To enable a plurality of kinds of rods having different cross-sectional shapes to be used by one boring machine.A boring machine comprises: a rotating table 1 installed in a rotary section which drives a rod rotationally and rotating by ...  
JP5295310B2
To surely prevent a filler from leaking to the inside of a drilling hole in drilling execution of filling the filler between a hole wall and a protective pipe. A seal device includes a cylindrical seal body 24 attached to a lower end of ...  
JP5274523B2
The device (10) has an adjustable sleeve-shaped receiving part (20) arranged at an upper end of a casing tube (5), onto which a supporting frame of a drilling apparatus (100) is fastened. The receiving part is adjustably supported betwee...  
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...  
JP5271788B2
To provide an earth drill capable of increasing a cutting depth by making a split kelly-bar longer, even when limitations are imposed on a height-direction space. The second-fourth kelly-bars 92-94 are constituted in such a manner that t...  
JP2013155496A
To provide a simple and economical cylindrical body for rotary cutting that is used to drill a concrete wall or floor board, or a rock bed.A cylindrical body 2 has a cutting blade 3 at a top and also has a projection part 4 on a peripher...  
JP5189946B2  
JP5166987B2  
JP5155991B2  
JP5142269B2  
JP2013028983A
To provide an excavation method with which the ground is excavated with no vibration and no noise without being affected on the quality of soil.According to an excavation method, an excavation bucket is engaged to a casing and the casing...  
JP5134978B2  
JP5060555B2
A retrievable tool for steering through an earth formation includes a first tool assembly and a tilted antenna attached to the first tool assembly. The tool also includes a second tool assembly attached to the first tool assembly and a t...  
JP5053154B2  
JP5044682B2
The apparatus has a drill drive (10) for driving a drill string (1) in a rotating manner, and a rotary feedthrough (20) through which a construction material is passed from a construction material hose (6) into an interior of the drill s...  
JP4993166B2  
JP2012509418A
A method of heating a subsurface formation includes introducing a molten salt into a first passageway of a conduit-in-conduit heater at a first location. The molten salt is passed through the conduit-in-conduit heater in the formation to...  
JP3173267U
To provide a working deck of an all-around rotary excavator which eliminates troublesome installation work by erecting an auxiliary scaffolding board against a scaffolding board at the time of wall construction and tilting it outward whe...  
JP4864951B2
A drill drive (22) placed on a slide (30) guided on a derrick (20), drives a drill rod. An annular gear (40) is placed between the drill drive and drill rod and is placed on the drill drive in disengageable and reversible manner, for inv...  
JP4851868B2  
JP2011247082A
To provide kelly equipment which connects an excavation tool to rotate and lift the same and grips a pile to make the same rotatable for efficiently embedding a pile.Kelly equipment is composed of a set of telescopic rods 7, 19, one bein...  
JP4778363B2  
JP4773868B2  
JP4768877B1
To quickly and surely stop rotation of a rotation drive source (earth auger) with a simple configuration. An equipment frame body 18b of a rotation drive source 18 and a columnar casing 12 are connected via first rotation stopping means ...  
JP4744539B2  
JP2011140876A
To provide a drilling machine and a press fitting machine which are excellent in drilling efficiency, and reduce the damage of digging claws thereof.The drilling machine includes a digging head 30 consisting of a peripheral head 31 and a...  
JP4728898B2  
JP4698539B2  
JP4693730B2  
JP4688214B2  
JP4677330B2  
JP2011080355A
To provide a rotary table device for a drilling machine which, when extracting the drilling machine becoming long with connected extended bodies from a drilled hole, allows the extended bodies to be extracted gradually by removing the ex...  
JP4660044B2
A rock drill includes a mounting frame to which a hammering apparatus and a rotating apparatus is arranged. The mounting frame is made maneuverable with respect to a feeding beam by means of slide blocks fastened to it, whereby a separat...  

Matches 451 - 500 out of 1,626