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1. 发明专利

JP2001317048A COLUMNAR BODY AND JOINT THEREFOR 失效
公开(公告)号：JP2001317048A
公开(公告)日：2001-11-16
申请号：JP2001045013
申请日：2001-02-21
申请人： NIPPON STEEL CORP , KUBOTA KK
发明人： OKA MOTOKI , SAIKAI KENJI , OTSUKI MITSUGI , SOUWA AKIO , AOKI ISAO , HORIKIRI SETSU
IPC分类号： E02D5/24 , E02D5/56
摘要： PROBLEM TO BE SOLVED: To provide a technique capable of easily performing the work for coupling and connecting joint parts of adjacent columnar bodies and improving the support strength of the whole columnar body by increasing the engaging force of the outer-periphery surface of the joint part and soil cement. SOLUTION: The joint parts T mounted respectively on the main bodies of the adjacent columnar bodies are coupled together at the shaft core X of the main body thereof for the purpose of being sunk. A joint part 1 of a cylindrical part or a joint part 2 of a shaft part is mounted on one end part of the main body of the columnar body, and the joint part 2 or the joint part 1 is mounted on the other end part thereof. The joint parts 1, 2 of the main bodies of the adjacent columnar bodies are composed in a freely fitted manner. Coupling mechanisms R for coupling the fitted joint parts 1, 2 mechanically are mounted on both of the joint parts T, and recessed and projecting parts O are formed in the outer-periphery surfaces of both of the joint parts T.

2. 发明专利

JP2001234530A COLUMNAR BODY 失效
公开(公告)号：JP2001234530A
公开(公告)日：2001-08-31
申请号：JP2000047197
申请日：2000-02-24
申请人： NIPPON STEEL CORP , KUBOTA KK
发明人： OKA MOTOKI , SAIKAI KENJI , OTSUKI MITSUGI , SOUWA AKIO , AOKI ISAO , HORIKIRI SETSU
IPC分类号： E02D5/24 , E02D5/28 , E04B1/24 , E04B1/58
摘要： PROBLEM TO BE SOLVED: To provide columnar bodies, in which the connecting works of both columnar bodies can be conducted simply in a short time without requiring skilled technique, the lowering of the connecting force of both columnar bodies is inhibited even in a ground, in which there are a large quantity of groundwater, rainwater or the like, and the strength of the whole columnar bodies can be maintained for a prolonged term. SOLUTION: In the columnar bodies, both columnar bodies A1, A2 are constituted in a connectable manner under the state of slipping-off prevention by internally fitting the shaft section 3 of the other columnar body A2 into the cylinder section 1 of one columnar body A1 and fitting a key member 13 extending over the groove section 6 of the cylinder section 1 and the groove section 11 of the shaft section 3, a space 15 for sealing for disposing a seal member 16 obstructing the infiltration of water into the groove section 6 of the cylinder section 1 and the groove section 1 of the shaft section 3 is configured so as to be formed between both columnar bodies A1, A2, the external side faces of both columnar bodies A1, A2 are covered with waterproof covering layers for the sealing preventing the infiltration of water into both groove sections 6, 11, and rustproof working is executed on the surfaces of both groove sections 6, 11 and the surface of the key member 13.

3. 发明专利

JP2001073365A SCREWED TYPE STEEL PIPE PILE AND EMBEDDING CONSTRUCTION METHOD THEREFOR 失效
公开(公告)号：JP2001073365A
公开(公告)日：2001-03-21
申请号：JP24951699
申请日：1999-09-03
申请人： KUBOTA KK
发明人： OTSUKI MITSUGI , KUROSAWA FUTOMASA
IPC分类号： E02D5/56 , E02D7/22
摘要： PROBLEM TO BE SOLVED: To efficiently embed a screwed type steel pipe pile with a blade having large bearing power. SOLUTION: A spiral blade 5 for screwing, having a broad width and a large diameter extending over the inside and outside of a steel pipe 1, is fixed at the lower end of the steel pipe 1, and a leading cylinder 7 is fixed onto the inner circumference of the spiral blade 5 and provided droopingly. When the steel pipe pile A is embedded at this time, an auger in which a screw having a small diameter is installed to a lower section is inserted into the steel pipe pile A, disposed upright on a ground, and the steel pipe pile A is rotational- pressed in, excavating the ground by the screw.

4. 发明专利

JP2001073364A SCREWING STEEL PIPE PILE 失效
公开(公告)号：JP2001073364A
公开(公告)日：2001-03-21
申请号：JP24950099
申请日：1999-09-03
申请人： KUBOTA KK
发明人： OTSUKI MITSUGI , KUROSAWA FUTOMASA
IPC分类号： E02D5/56 , E02D5/28 , E02D5/72
摘要： PROBLEM TO BE SOLVED: To lessen the insertion resistance of a steel pipe pile by fixing a spiral wing over substantially one winding on the lower end of a steel pipe making the body of the pile, hanging a leading cylinder fixed on the inner periphery of the spiral wing and projected downward thereof, and projecting a plurailty of window holes and excavation plates on the peripheral wall of the leading cylinder. SOLUTION: When the steel pipe pile is pushed into ground while rotating it, the excavation plate 9 of the leading cylinder 7 excavates the ground. A part of soil and sand is made into flow to the leading cylinder 7 from the window hole 8, and the other part of soil and sand is moved to the lower face of an inner wing part 5b along the conical face of the leading cylinder 7. Next, the spiral wing 5 is cut into the outside ground of the leading cylinder 7, and screwed by the reaction force of the ground acting on the upper face of the spiral wing 5 to promote insertion. Soil and sand entering a gap 6b is consolidated on the peripheral ground while sliding on the upper face of the wing of spiral inclination. Lower side soil and sand and soil and sand excavated by the excavation plate 9 are made to flow in to be pumped into the steel pipe 1. Thus, the pile can be inserted and promoted only by rotating it by slight push pressure force, and can be buried without removing soil.

5. 发明专利

JP2000290998A STRUCTURE AND METHOD FOR JOINING STEEL-PIPE PILE 失效
公开(公告)号：JP2000290998A
公开(公告)日：2000-10-17
申请号：JP10075999
申请日：1999-04-08
申请人： NIPPON STEEL CORP , KUBOTA KK
发明人： KINOSHITA MASATAKA , SAIKAI KENJI , KAWABATA NORIYUKI , OTSUKI MITSUGI , SHIBATA ATSUSHI
IPC分类号： E02D5/24
摘要： PROBLEM TO BE SOLVED: To provide steel-pipe piles such that one of the steel-pipe piles can be easily joined with the other of the steel-pipe piles by machining the pipe end of the one steel-pipe pile into a shape suited for junction by a simple method without using a joint pipe, the steel-pipe piles being low-cost and excellent in construction properties. SOLUTION: At the end of one steel-pipe pile 1, an increased-diameter pipe end is formed having an inside diameter which is greater by a size equal to a predetermined gap than the outside diameter of the other steel-pipe pile 2 increased in diameter by a diameter increasing device and joined to the end of the one steel-pipe pile 1, and the increased-diameter pipe end is thereafter fitted over the outer periphery of the pipe end of the other steel-pipe pile. The space between the inner surface of the end of the increased-diameter pipe end and the outer peripheral surface of the other steel-pipe pile 2 is sealed by an anti-wetting material 8, and an adhesive 5 is packed between the inner surface of the increased-diameter pipe end of the one steel-pipe pile 1 and the outer peripheral surface of the pipe end of the other steel-pipe pile 2 from the lower portion of the increased-diameter pipe end and is solidified to surely and easily join the one steel-pipe pile 1 with the other steel-pipe pile 2.

6. 发明专利

JPH112049A CONNECTING STRUCTURE OF DIFFERENT DIAMETER STEEL PIPES AND METHOD FOR CONNECTION 失效
公开(公告)号：JPH112049A
公开(公告)日：1999-01-06
申请号：JP18897697
申请日：1997-06-10
申请人： KUBOTA KK
发明人： MORI TAKASHI , OTSUKI MITSUGI , SHIBATA ATSUSHI , NOBORI KENJI
IPC分类号： E04H12/00
摘要： PROBLEM TO BE SOLVED: To establish easily the connection of different diameter steel pipes on the insert system accurately and strongly. SOLUTION: A bottom plate 2 having a guide rib for centering 4 is installed in the forefront part of a major diametric pipe 1. A joint cover 6 in the form of a truncated cone is loosely inserted in a minor diametric pipe 5, and its tail is inserted into the forefront of the major pipe 1 until contacting with the bottom plate 3, and the gap between the two pipes 1 and 5 is filled with a solidifying material 10 of cement type. The joint cover 6 is put on the forefront of the major pipe 1, and the gap between the top of the cover 6 and the minor pipe 5 is subjected to a water stopping means.

7. 发明专利

JPH04209206A ESTABLISHMENT OF ANCHOR FOUNDATION PILE 失效
公开(公告)号：JPH04209206A
公开(公告)日：1992-07-30
申请号：JP34021290
申请日：1990-11-30
申请人： NIPPON STEEL CORP , JIYUUTAKU TOSHI SEIBI KOUDAN , KUBOTA KK , TENOX KK
发明人： ISHIBASHI RYUKICHI , TERASAKI SHIGEKI , TORISAKI HATSUICHI , YASUTAKE MASATOSHI , OTSUKI MITSUGI , HIBINO SHINICHI , KAMI SHUJI
IPC分类号： E02D5/54 , E02D7/00 , E02D7/22
摘要： PURPOSE:To make unable to disturb or loosen the original ground by loading a common rotation preventive wing having a diameter larger than an excavation diameter to the upper step of an excavation wing so that it is capable of rotating against an auger rod, crushing a clod of earth with the common rotation preventive wing to excavate and, at the same time, settling a steel pipe while injecting a solidifiable material. CONSTITUTION:While rotating an auger 1 and a steel pipe pile 4 in the opposite direction each other or in the same direction and, at the same time, a solidifiable material is discharged from a discharge port 25 on the front end of an auger rod 21 to excavate a hole with an excavation wing 23. After that, the ground excavated with the excavation wing 23 is crushed with a common rotation preventive wing 3. A clod of earth is mixed with a solidifiable material discharged from the discharge port 25 while stirring it with a stirring wing 23. In addition, the steel pipe pile 4 is settled under such a condition. According to the constitution, the original ground is not disturbed or loosened, so that very powerful vertical bearing power and drawing resistance force can be generated in one pile.

8. 发明专利

JP2001311142A CONFIRMATION METHOD OF JOINT CONDITION AND COLUMNAR BODY 失效
公开(公告)号：JP2001311142A
公开(公告)日：2001-11-09
申请号：JP2001045014
申请日：2001-02-21
申请人： NIPPON STEEL CORP , KUBOTA KK
发明人： OKA MOTOKI , SAIKAI KENJI , OTSUKI MITSUGI , SOUWA AKIO , AOKI ISAO , HORIKIRI SETSU
IPC分类号： E02D5/24
摘要： PROBLEM TO BE SOLVED: To provide a confirmation method of a joint condition and both columnar bodies capable of easily carrying out a jointiong work or the both columnar bodies in a short time without any skillful technique and further, capable of confirming the jointed state of both columnar bodies using a key member. SOLUTION: Into a cylindrical part 1 of one columunar body, the shaft part 3 of the other columnar body is internally inserted astride over the inward groove 6 of the cylindrical part 1 and the outward groove 11 of the shaft part 3 to constitute these columnar bodies so as to be fixedly connectable. In this joint part of the columnar bodies, the fitted state of the key member 13 set across the inward groove 6 and the outward groove 11 can be confirmed by the method. A peephole 15 opened to the outer peripheral face of the cylindrical part in advance to communicate with the inward groove 6 and the fitted state of the key member 13 is confirmed by the eyes through the peephole 15.

9. 发明专利

JP2001248153A COLUMNAR BODY 失效
公开(公告)号：JP2001248153A
公开(公告)日：2001-09-14
申请号：JP2000056781
申请日：2000-03-02
申请人： NIPPON STEEL CORP , KUBOTA KK
发明人： OKA MOTOKI , SAIKAI KENJI , OTSUKI MITSUGI , SOUWA AKIO , AOKI ISAO , HORIKIRI SETSU
IPC分类号： E02D5/24 , E02D5/28 , F16B3/00
摘要： PROBLEM TO BE SOLVED: To provide a columnar body such that a cylinder part and a shaft part disconnected from each other by preventing the end of the cylinder part and the end of the shaft part from being deformed even by a strong drawing force to the columnar body, and preventing a key member fitted into both inward and outward grooves from being disengaged. SOLUTION: Each columnar body is provide with the cylinder part 1 and the shaft part 2. The columnar bodies A1 and A2 adjoin each other in the direction of the axis X of each columnar body are so formed that the cylinder part 1 of one of the columnar bodies is freely engageable with the shaft part 2 of the other columnar body. A circumferentially extending inward groove 6 is formed in the inner peripheral surface part of the cylinder part 1 and a circumferentially extending outward groove 12 is formed in the outer peripheral surface part of the shaft part 2. The key member K is fitted into both the inward groove 6 and the outward groove 12 to provide each columnar body with a key connection R where the cylinder part 1 of one of the mated adjacent columnar bodies A1 and A2 is freely lockingly connectable with the shaft part 2 of the other of the columnar bodies. The key connection R is positioned on the line S of application of an axial force applied to the coupled adjacent columnar bodies A1 and A2 on vertical cross sections.

10. 发明专利

JP2001200534A LONGITUDINAL JOINTING DEVICE FOR STEEL PIPE PILE 失效
公开(公告)号：JP2001200534A
公开(公告)日：2001-07-27
申请号：JP2000012589
申请日：2000-01-21
申请人： KUBOTA KK
发明人： HAMAMOTO SHINNOSUKE , IKENOBU HIDEAKI , OTSUKI MITSUGI , SOUWA AKIO
IPC分类号： E02D5/24 , E02D5/28
摘要： PROBLEM TO BE SOLVED: To perform longitudinal jointing for a steel pipe pile by a mechanical means easily, rigidly by prohibiting its turning without welding. SOLUTION: At the end portion of an upper pile A1, a pin joint member 1 having an outer periphery as a joint surface is projected out, on the other hand, at the portion of a lower pile A2, a box joint member 2 for externally fitting to a pin joint portions 1, 2 is projected out. At the joint surfaces of both the joint portion 1, 2, outer and inner grooves 17, 27 are respectively provided by facing each other, a circular arc key 5 housed in the inner groove 27 of the box joint member 2 is galled with both the grooves 17, 27 by the operation of a set bolt 3, and both the joint members 1, 2 are coupled as one body. Also, a rotation-giving fittings 18 is projected out from the pin joint member 1, a rotation receiving fittings 29 is projected out from the box joint member 2, and when a pin joint member 1 is inserted and fitted to the box joint member 2, both the fittings 18, 29 are linked and both the upper and lower piles A1, A2 are connected together in a non-rotating manner.

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