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JP2009155882 |
To realize a pile member embedding method for efficiently embedding pile members in the ground.According to the pile member embedding method, an excavator 1 is arranged in the ground in a manner excavating a drilling hole at a location a...
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JP2009144366 |
To provide a joint device for use in a pile pressing-in apparatus, which can effectively prevent slurry in a river from spattering when a steel pipe sheet pile is driven into the river.The joint device 7 is for use in the pile pressing-i...
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JP2009127356 |
To provide a pile driver having a leader revolution holding mechanism which firmly holds a leader in its revolvable state, prevents a bending moment from the leader from acting on a hydraulic motor, and causes the leader to revolve witho...
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JP2009127394 |
To eliminate the risk of lifting a pile and prevent deformation of the pile while removing a chuck device from the pile in the state that a pressing member and the pile are tightly fitted together by earth and sand, and to eliminate the ...
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JP2009127213 |
To provide an excavating head for burying a prefabricated pile, which can increase a ratio of enlargement of an enlarged bulb diameter with respect to an outside diameter of the pile to be buried, and which can crush large gravel in remo...
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JP2009127241 |
To provide a device and a method, capable of leaving a coagulant in the ground at 100% of a design quantity.The device includes an excavating shaft 1 provided with a coagulant injection port 16 at a top end thereof, an excavating blade 1...
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JP2009121057 |
To provide an erection method for a foundation pile, which enables an erection hole to be used for other purposes in such a manner as to hardly incur the risk of crushing, by using a hole, at a stage before it is used as the erection hol...
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JP2009114628 |
To provide a weight-saved leader and a pile driving attachment using the leader, in a pile driver in which a drilling unit is mounted on the one side of the leader and in which a holding device for a prefabricated pipe is mounted on the ...
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JP2009109184 |
To provide an underground temperature stratified heat accumulating water tank with inexpensive manufacturing cost and high heat accumulating property.A rotary pressure insertion steel pipe pile is rotary pressure inserted and buried in t...
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JP2009103441 |
To provide an underground temperature stratified heat storage water tank of low manufacturing costs and high heat storage performance.A rotary press-fit steel pipe pile as a foundation pile supporting a building is rotated and press-fitt...
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JP2009091801 |
To provide a pile embedding method which improves working efficiency by using a construction machine in place of an accompanying crane.The pile embedding method is composed of: a step of precedently excavating a ground surface area down ...
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JP2009084951 |
To obtain a steel pile capable of efficiently using a supporting force and a skin friction force from the ground by a simple constitution and greatly reducing production cost.A rotational intrusion steel pile is provided with a cylindric...
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JP2009084822 |
To provide a steel pipe press-fitting auxiliary device which can smoothly excavate the hard ground or a hard rock mass by an auger screw without fixing an engaging body to the upper internal peripheral surface of each steel pipe to be pr...
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JP2009074341 |
To provide a tool for driving a pile in a ground by inserting the pile into an iron tube closed at one end from the head of the pile and, while vertically holding, raising and driving down the tube while holding the tube by a hand.The ha...
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JP2009068262 |
To provide a pile driver which allows the operator to visually observe an angle display unit of a leader from a cab, and can positively erect the leader in the vertical state.The pile driver is formed of: a pendulum shaft 21 which is arr...
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JP2009062711 |
To provide a bored precast pile method capable of largely easing limitations by the size of a construction site and requirements for carrying-in of a construction machine and performing a series of steps starting at excavation to the ins...
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JP2009064419 |
To reduce the energy consumption of a vibrator.The servo-control system for a hydraulic system 7 comprises a pump 8 driven by a motor 9, which feeds hydraulic fluid to a vibrator 1 or vibrating system comprising eccentric weights driven ...
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JP2009057692 |
To reduce cost while securing enough fitting strength between a spiral blade part and a straight pipe-like part by integrally forming the spiral blade part and the straight pipe-like part to eliminate the need of welding work.This end me...
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JP2009052399 |
To economically and efficiently immerse, while rotating, a pile or a sheet pile embedded in the ground.A cylindrical jig body with a joint 3 engaged with a joint 4 at an upper end of a steel pipe 1 for positioning construction is provide...
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JP2009046832 |
To provide a pile device for a foundation, which makes costs low by a simple constitution, which shortens working hours by simple operations and which enables construction to be performed by vertically connecting piles together; to provi...
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JP2009046893 |
To provide a pile driver and a method of fixing a hosting rope which improve workability in work of raising and laying down a leader.According to the pile driver 1, a rope support member 60 supports the hoisting rope 40 when the leader 2...
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JP2009046890 |
To provide a sensor mounting structure having vibration proof effects on any vibration having low-to-high frequencies while improving the accuracy of a sensor and securing the durability of the sensor and vibration proof rubbers.On the u...
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JP2009041194 |
To provide a temporary scaffold for a pile, which can freely adapt even to the case of easy attachment to/detachment from the pile and the possession of difference pile diameters.This temporary scaffold comprises: a belt for attachment, ...
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JP2009041894 |
To reduce cost by pulling out a leading steel pipe of an underground heat exchanger while reversely rotating it when installing the underground heat utilizing heat exchanger in the ground.An underground heat exchanging method comprises m...
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JP2009024389 |
To provide a construction method for a steel pipe pile on an inclined surface for connecting an excavating pipe with a rotation providing means on the inclined surface (at a low position) and dispensing with a platform.This construction ...
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JP2009019341 |
To provide the structure of the upper end of a prefabricated pile which can firmly join the upper end of the prefabricated pile driven into the ground under a pre-constructed foundation to the foundation, and can perform stable foundatio...
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JP2009013700 |
To provide a coupling for transmitting pile rotation, which is engageable in a short period of time and applies a predetermined press-fitting load to a hollow pile.This coupling for transmitting pile rotation is formed in a cap-like body...
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JP2009013615 |
To provide a construction method for a prefabricated pile which can drive the prefabricated pile into the bearing ground in a space-saving manner at the downside of an already-constructed foundation, and can provide a rehabilitation meth...
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JP2009002082 |
To provide an excavator for use in a foundation pile burying method, capable of easily forming an enlarged diameter part used as a foot protection bulb part at a lower part of an excavated hole, as designed, high in construction reliabil...
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JP2009001999 |
To provide a foundation pile welding method which enables the relatively simple performance of a foundation pile welding operation, and a foundation pile holder for the foundation pile welding operation for use in the foundation pile wel...
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JP2009001982 |
To provide a hydraulic circuit of auger lifting and lowering equipment with an auger free-descent mechanism capable of avoiding the breakage of a hydraulic motor in a free-fall state and preventing the free fall of an auger rotary-drive ...
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JP2008297738 |
To provide driving equipment which eliminates a malfunction occurring on a wire itself or a member constituting the driving equipment, by transferring a great tensile force to the wire as reaction after the loosening of the wire due to t...
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JP2008297856 |
To provide a foundation structure for supporting a large-sized marker post or a multipurpose post, structured not to rotate even when a large-sized marker or the like receives strong wind pressure load or the like and also structured to ...
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JP2008297752 |
To provide a method for burying a pile without earth removal, which increases the vertical-load bearing capacity of the pile by making the pile easily penetrate a firm stratum called an intermediate stratum, by the time the pile reaches ...
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JP2008291523 |
To provide a steel pipe pile having the performance being equal to that of a conventional steel pipe pile with spiral blade and capable of reducing its manufacturing cost.This steel pipe pile is constituted by attaching a pair of blade p...
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JP2008280837 |
To improve construction equipment so that it can realize especially high operational reliability while providing high multiple application performance.The construction equipment is provided with a transmission 3, at least one hydraulic d...
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JP2008274723 |
To provide improved technology for driving an oscillating pile which is used in conjunction with an earth auger, which eliminates the need for a crane used exclusively for an auger, and which can strongly intrude a steel pipe pile into t...
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JP2008274689 |
To provide a burying device used for burying a member like a venting pipe or a water passage pipe in a waste disposal plant and provided with a detachable tip, by which removal of the tip can be easily confirmed from the outside after th...
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JP2008274553 |
To provide a slope stabilizing method capable of providing a sufficient bearing strength against tension, bending, shear, etc. and a sufficient strength for avoiding a collapse of a slope attributable to groundwater.A small-bore steel pi...
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JP2008267135 |
To provide a rotary pile driver preventing a mast from moving in the turning direction even if a big friction resistance acts on a driven pile by fixing the mast with a chuck.The mast 16 is turnably provided on a base 12 of the rotary pi...
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JP2008261171 |
To provide an easily-handleable low-cost pile driver with a working device.In the pile driver 1 with the working device, the working device 20, which is slidably mounted on a leader 15 erected ahead of a main body 12, is hung by a hangin...
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JP2008255765 |
To solve the problem that a pile hole is obliquely formed because a presently mainstream pile hole drilling unit employing a hydraulic motor as a driving source cannot detect a precise N-value in real time during ground drilling operatio...
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JP2008255695 |
To provide a method of constructing a steel pipe pile capable of providing high penetration speed, suppressing the increase of construction load, and securing sufficient bearing force.A steel pipe pile 1 having a steel pipe body 1A opene...
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JP2008255603 |
To provide a driving method of an inner excavation pile constructible even under condition of timely requiring temporary retreat, while efficiently constructing the inner excavation pile under a construction condition of having low and n...
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JP2008248493 |
To increase efficiency in burying work of an existing pile, by facilitating handling in suspending and connecting the existing pile, by installing a pile holder.This pile holder 1 composed of semicircular doughnut-shaped holder pieces 16...
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JP2008248537 |
To provide a method of driving a rotatingly press-fitted pile even in a narrow site.A concrete member 121 is so constructed in a ground that a through hole 122 allowing the rotatingly press-fitted pile 110 to be extended therethrough is ...
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JP2008240501 |
To open and close a chuck without requiring operation of coupling/decoupling a hydraulic hose and without inviting complication and increase in weight of equipment.A power transmission mechanism to a chuck in a rotary casing pushing-pull...
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JP2008240503 |
To provide a pile construction machine capable of constructing a pile foundation superior in quality, without damaging its constituting apparatus and a pile, even when a pile diameter and a ground property are variously changed.This pile...
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JP2008240392 |
To provide a pile driving machine which has a leader of a different length mounted on a revolving frame thereof, wherein the pile driving machine copes with change in length of the leader through relatively simple work, and maintains a w...
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JP2008223337 |
To provide a foundation pile construction method, reinforcing the pile head comparatively simply and inexpensively, and washing device of hollow pile inner peripheral wall used in the method.A hollow pile 30 in which a drilled hole 40 is...
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