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1. 发明专利

JP2657180B2 失效
公开(公告)号：JP2657180B2
公开(公告)日：1997-09-24
申请号：JP7855194
申请日：1994-04-18
申请人： NISHITETSU KENKI KK , FUJI PII ESU KK , TOOMEN KENKI KK
发明人： KITAGAKI KUNYUKI , MIZUTA KENSAKU , YASUDA HARUKI
IPC分类号： E02D5/32 , E02D5/10 , E02D7/18 , E02D7/24 , E02D7/26

2. 发明专利

JP2543968B2 失效
公开(公告)号：JP2543968B2
公开(公告)日：1996-10-16
申请号：JP27173888
申请日：1988-10-26
申请人： NISHINIPPON TETSUDO KK , FUJI PII ESU KK , TOOMEN KENKI KK
发明人： KITAGAKI KUNYUKI , MIZUTA KENSAKU , YASUDA HARUKI
IPC分类号： E02D5/10 , E02D7/24

3. 发明专利

JP2001032268A CONCRETE SHEET PILE STRUCTURE 失效
公开(公告)号：JP2001032268A
公开(公告)日：2001-02-06
申请号：JP20614599
申请日：1999-07-21
申请人： NISHITETSU KENKI KK , TOMEC CORP
发明人： SUZAKI SHINICHIRO , YASUDA HARUKI
IPC分类号： E02D5/12
摘要： PROBLEM TO BE SOLVED: To improve the connection work efficiency of a concrete sheet pile with a conducting tube embedded therein. SOLUTION: A connection receiving body 3 is mounted on an upper end part of a preceding sheet pile body 1. The sheet pile bodies 1, 1 are connected to each other in the vertically extending direction by mounting a connection body 4 to a lower end part of the succeeding sheet pile body 1, and connecting the connection body 4 to the connection receiving body 3, a closed space for communication of the conducting tube is formed of end faces of both sheet pile bodies 1, 1, and inner circumferential surfaces of the connection body 4 and the connection receiving body 3, and end parts of the conducting pipe 2 embedded in each of the sheet pile bodies 1, 1 are communicate with each other through the closed space.

4. 发明专利

JP2001032267A CONCRETE SHEET PILE STRUCTURE 失效
公开(公告)号：JP2001032267A
公开(公告)日：2001-02-06
申请号：JP20614499
申请日：1999-07-21
申请人： NISHITETSU KENKI KK , TOMEC CORP
发明人： SUZAKI SHINICHIRO , YASUDA HARUKI
IPC分类号： E02D5/10
摘要： PROBLEM TO BE SOLVED: To protect a sheet pile main body lower end part and a nozzle so as to efficiently build a sheet pile by arranging a water guiding tube on one side face of the sheet pile main body, installing a drilling body shaped in an inverted triangle in lateral cross section in the lower end, and housing a high pressure water jetting nozzle inside. SOLUTION: A concrete sheet pile A is formed by disposing a water guiding tube 2 comprising a water guiding tube main body 10, a cutting body 11, and a nozzle connecting body 12 on one side face of a reinforced concrete steel sheet pile main body 1 extended in the vertical direction and formed into a wavy shape in the bottom view. In the lower end of the sheet pile main body 1, a drilling body 3 provided with a high pressure water jetting port and shaped into an inverted triangle in the cross section is fitted and installed by means of a bolt, while a nozzle 4 is housed in a nozzle supporting and protecting piece so as to be connected to the nozzle connecting body 12. While jetting high-pressure water from the high-pressure water jetting port for excavating the ground, the sheet pile main body 1 is built in the ground. Because the lower end part of the sheet pile main body 1 and the nozzle 4 are protected by the drilling body 3 so as not to be broken, excavation can be carried out efficiently. In addition, the structure is simplified and a production cost is lowered.

5. 发明专利

JP2000073681A EXCAVATION METHOD AND DEVICE FOR BRANCH EXCAVATION HOLE 失效
公开(公告)号：JP2000073681A
公开(公告)日：2000-03-07
申请号：JP17337299
申请日：1999-06-18
申请人： NISHITETSU KENKI KK , TOMEN KENKI KK , MAEDA YOSHITO
发明人： OGATA TATSUO , MAEDA YOSHITO , KITAGAKI KUNIYUKI , YASUDA HARUKI , OUCHI MASATOSHI
IPC分类号： E21B7/04 , E21B7/18
摘要： PROBLEM TO BE SOLVED: To radially excavate a branch excavation hole horizontally from a main excavation hole vertically formed by horizontally converting a vertical pressing force through a pressure transmission body which is freely bendable in only one way to press an excavation nozzle. SOLUTION: A pressure transmission body 5 is inserted in a tubular guide body 3 fixed to a base 2 and made slidable according to the extension and contraction of a hydraulic cylinder 4, in this excavation device A. The pressure transmission body 5 can be made bendable in only one way by connecting may link pieces 9 by connection pins 10. An excavation nozzle 14 connected to a high pressure hose 12 is pressed by the pressure transmission body 5 to excavate the ground and form a branch excavation hole by jetting high pressure water. Thereafter, a hardening material such as cement milk or the like is filled through the excavation nozzle 14 and the hydraulic cylinder 4 is stretched to recovery the pressure transmission body 5. The excavation nozzle 14 and the high pressure hose 12 are left in the branch excavation hole. Accordingly, a branch excavation hole can be easily excavated horizontally and radially from a main excavation hole vertically formed.

6. 发明专利

JP2001032266A RAW WATER TRANSMISSION PIPE STRUCTURE MADE OF CONCRETE SHEET PILE 失效
公开(公告)号：JP2001032266A
公开(公告)日：2001-02-06
申请号：JP20614399
申请日：1999-07-21
申请人： NISHITETSU KENKI KK , TOMEC CORP
发明人： SUZAKI SHINICHIRO , YASUDA HARUKI
IPC分类号： E02D5/10
摘要： PROBLEM TO BE SOLVED: To reduce the construction cost by recovering raw water transmission pipe bodies provided in a concrete sheet pile in a work of a retaining wall to be constructed by building the concrete sheet piles. SOLUTION: This water transmission pipe 2 comprises a conducting tube body 10 extended from an upper end part to a lower end part of a sheet pile body 1, a cut body 11 whose upper end is connected to a lower end of the conducting pipe body 10, and a nozzle connection body 12 whose upper end is connected to a lower end of the cut body 11 and whose lower end is connected to a nozzle. The cut body 11 is cut when subjected to a tension for recovering the conducting tube to be applied to the conducting tube body 10.

7. 发明专利

JPH02120410A CONCRETE SHEET PILE 失效
公开(公告)号：JPH02120410A
公开(公告)日：1990-05-08
申请号：JP27173888
申请日：1988-10-26
申请人： NISHI NIPPON RAILROAD CO LTD , FUJI PS CONCRETE , TOOMEN KENKI KK
发明人： KITAGAKI KUJIYUKI , MIZUTA KENSAKU , YASUDA HARUKI
IPC分类号： E02D5/10 , E02D7/24
摘要： PURPOSE:To secure the safety of the ground by providing high pressure water supply lines and compressed air supply lines lengthwise to the insides of concrete sheet pile bodies and pouring respectively high pressure water and compressed air from openings of their upper ends to make it possible to spout them from openings of their lower ends. CONSTITUTION:A prestressed concrete (PC) sheet pile A is manufactured as stretcher shaped sheet pile bodies 1 having a U-shaped section and overall length of about 20m of the PC. High pressure water supply lines 2, 2 and compressed air supply lines 2', 2' are provided to the insides of right and left sides of the sheet pile bodies 1 respectively lengthwise extending from the upper ends to the lower ends, and the high pressure water and compressed air are poured from openings 3, 3' of the upper ends of each supply lines 2, 2' to make it possible to spout openings 4, 4' of the lower ends. Cutting pieces are pushed down along a side wall by the compressed air while cutting the ground of the lower ends of the sheet pile bodies 1 by high pressure water force, and they are pushed deeply into the ground. According to the constitution, they can be inserted with a low noise, high efficiency and high ability.

8. 发明专利

JPS6421119A CONCRETE SHEET PILE HAVING WATER-CONVEYANCE HOLE AND DRIVING SAID PILE 失效
公开(公告)号：JPS6421119A
公开(公告)日：1989-01-24
申请号：JP17644487
申请日：1987-07-14
申请人： NISHI NIPPON RAILROAD CO LTD , FUJI PS CONCRETE , TOOMEN KENKI KK
发明人： KITAGAKI KUNIYUKI , MIZUTA KENSAKU , YASUDA HARUKI
IPC分类号： E02D7/00 , E02D5/10 , E02D7/24
摘要： PURPOSE:To reduce noise when a pile is driven as well as raise the efficiency of driving operation by a method in which a concrete sheet pile having a water- conveyance hole from upper end to the lower end is driven into the ground while jetting high-pressure water by means of a vibration-type pile driver. CONSTITUTION:A prestressed concrete sheet pile A of a nearly U-shaped cross section is driven into the ground by means of a vibration-type pile driver. In this case, high-pressure water is supplied to water-conveyance holes 2 and 2' formed from upper end openings 3 and 3' to lower end openings 4 and 4' of both sides of the pile 1 and jetted from the openings 4 and 4'. The flow rate and pressure of the high-pressure water and the driving force of the vibration- type pile driver are regulated according to the characteristics of the ground layer. Grout is also injected into the lower end portion of the sheet pile A by using the holes 2 and 2' for foot protection.

9. 发明专利

JPH02289719A PRESS-IN METHOD OF CONCRETE SHEET PILE 失效
公开(公告)号：JPH02289719A
公开(公告)日：1990-11-29
申请号：JP10987889
申请日：1989-04-27
申请人： NISHI NIPPON RAILROAD CO LTD , FUJI PS CONCRETE , TOOMEN KENKI KK
发明人： KITAGAKI KUJIYUKI , MIZUTA KENSAKU , YASUDA HARUKI
IPC分类号： E02D5/10 , E02D5/32 , E02D7/24
摘要： PURPOSE:To reduce noise pollution by manufacturing a concrete sheet pile in which feeding passages of the high pressure water and the compressed air are provided, and respectively feeding the high pressure water and the compressed air from the upper end, and jetting out them from the lower end, and pressing the sheet pile in the ground with a press-in machine. CONSTITUTION:A high pressure water feeding passage 2 and a compressed air feeding passage 2' are provided in a concrete sheet pile main frame from the upper end to the lower end to enable the filling from upper end openings 3, 3' of these passages and jetting out from lower end openings 4, 4' respectively. Chucking of a press-in machine positioned near the press-in position and the concrete sheet pile are performed, and the ground of the lower end surface is drilled by jet of the high pressure water, and cut pieces mixed in the water are pulled up to the upper along a side wall of the sheet pile by the compressed air, and while the concrete sheet pile is pressed-in the ground deep by the press-in machine. Sheet pile press-in work with low noise pollution, high perfor mance, and high efficiency can thus be performed.

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