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1. 发明专利

JP2003225951A REINFORCED PLASTIC PIPE 审中-公开
公开(公告)号：JP2003225951A
公开(公告)日：2003-08-12
申请号：JP2002027418
申请日：2002-02-04
申请人： NIPPON STEEL CORP , HITACHI METALS LTD , NIPPON STEEL COMPOSITE CO LTD
发明人： TAKEUCHI TAKASHI , GUNJI SHIGERU , ARAKAWA TAKASHI , OKAWA DAIICHI , AOYANAGI SHIGEAKI , TADOKORO HIROYUKI , WATANABE NOBUYUKI , ARAKI SATORU , TAKEDA TOSHIKAZU , IMAMURA SHINJI
IPC分类号： F16L9/12 , B29C63/14 , B29C70/16 , B29K105/08 , B29L23/00
摘要： PROBLEM TO BE SOLVED: To provide a reinforced plastic pipe which is obtained by highly effectively reinforcing a plastic pipe using a reinforcing material of a reinforcing fiber and shows superb lightweight properties, high pressure resistance and high strength. SOLUTION: The reinforcing material of a reinforcing fiber 10 obtained by impregnating a continuous tape- or sheet-shaped reinforcing fiber with a resin, is densely wound at 50° COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2002036431A METAL REINFORCED POLYETHYLENE PIPE 失效
公开(公告)号：JP2002036431A
公开(公告)日：2002-02-05
申请号：JP2000226753
申请日：2000-07-27
申请人： HITACHI METALS LTD , NIPPON STEEL CORP , NIPPON STEEL COMPOSITE CO LTD
发明人： GUNJI SHIGERU , ARAKAWA TAKASHI , OKAWA DAIICHI , MURAKAMI SHINKICHI , TAMAKI YUJI , IMAMURA SHINJI , WATANABE NOBUYUKI , ARAKI SATORU , KATO SHINICHI
IPC分类号： F16L11/10 , B29C63/14 , B32B1/08 , B32B15/08 , B32B15/085 , B32B15/14 , B32B27/32
摘要： PROBLEM TO BE SOLVED: To provide a composite pipe enabling the piping of a polyethylene pipe in soil, which is polluted with an organic solvent, in an outdoor exposed state, reduced in weight and cost and capable of being thermally fused and bonded. SOLUTION: The composite pipe is constituted by winding a metal sheet around the outside of the polyethylene pipe and further applying fiber reinforcement or polyethylene coating to the outside of the metal sheet.

3. 发明专利

JPH1162455A DRILLING BIT FOR STEEL PIPE AND CONCRETE WELL CONSTRUCTION METHOD 失效
公开(公告)号：JPH1162455A
公开(公告)日：1999-03-05
申请号：JP21360497
申请日：1997-08-07
申请人： MITSUBISHI MATERIALS CORP , NIPPON STEEL CORP , TEISEKI SAKUSEI KOGYO KK
发明人： HAYASHI TAKESHI , TOFUN KAZUO , YOSHIDA KAZUYOSHI , HASEGAWA HISASHI , SAITO TAKUYA , GUNJI SHIGERU , FUKUMURA TAKAYOSHI , KAZOE YOSHIHIRO
IPC分类号： E21B10/00 , E21B10/26 , E21B10/36
摘要： PROBLEM TO BE SOLVED: To provide a drilling bit suitable for drilling a communication hole between joint steel pipes of steel pipes having joints built in an adjacent drilling hole in a steel pipe and concrete well construction method. SOLUTION: A pilot bit 15 is provided on a tip part 12 of a bit body 11 under the rotational driving force, and a guide pit 16 provided with a blade part 28 insertable in a slit formed in a joint steel pipe of a steel pipe having joints is provided on an outer circumferential part of the bit body 11. A guide bit body 27 is a cylindrical body to be freely fit to the outer circumferential part of the bit body 11 so as to be relatively turnable to the bit body 27, and a rear end part of the guide bit body 27 can be driven by a flange part 29 provided on the outer circumferential part of the bit body 11.

4. 发明专利

JPH0237516B2 失效
公开(公告)号：JPH0237516B2
公开(公告)日：1990-08-24
申请号：JP14419984
申请日：1984-07-13
申请人： NIPPON STEEL CORP
发明人： HASEGAWA HISASHI , GUNJI SHIGERU
IPC分类号： F16L1/024 , E21D9/06 , E21D9/08

5. 发明专利

JPS58131297A APPARATUS FOR ACCOMMODATING PIPE CONNECTOR MEMBER AND AUXILIARY CUTTER IN APPARATUS FOR PARALLELLY PROPELLING AND LAYING PLURAL PIPELINES 失效
公开(公告)号：JPS58131297A
公开(公告)日：1983-08-05
申请号：JP1336382
申请日：1982-02-01
申请人： NIPPON STEEL CORP
发明人： SASAKI YASUO , HASEGAWA HISASHI , GUNJI SHIGERU
IPC分类号： E02F5/10 , E21D9/06 , E21D9/08

6. 发明专利

JPH10286557A METHOD FOR RECOVERING CONTAMINANT PRIMARY LOCATION FROM CONTAMINATED SOIL TO GROUND AT ITS 失效
公开(公告)号：JPH10286557A
公开(公告)日：1998-10-27
申请号：JP11177197
申请日：1997-04-15
申请人： NIPPON STEEL CORP
发明人： HASEGAWA HISASHI , GUNJI SHIGERU , TATSUHARA TAKESHI , UEMATSU NOBUYUKI
IPC分类号： E02D3/11 , B09C1/00 , B09C1/04
摘要： PROBLEM TO BE SOLVED: To provide a method for recovering contaminants at its the primary location for recovering effectively the contaminants in soil which can be easily applied to the contaminated soil lying under an existing structure. SOLUTION: Pipes 4 and 5 to be laid by the bending excavation from the ground are set almost horizontally in soil 1 contaminated with harmful contaminants, and the contaminants in the soil are separated in the original site by using the pipes 4 and 5 and the like and recovered onto the ground. As a means for separating the contaminants, a plurality of power-applicable pipes 4 and 5 to be laid by the bending excavation from the ground are set in parallel almost horizontally at intervals L in the ground 1 contaminated with harmful contaminants, and one of the pipes 4 and 5 is used as a water collecting pipe 4 with a number of water collecting holes, while the other pipe is used as a power applicable pipe 5 in the constitution of a pair of pipes or pairs of pipes. Direct current supplied from a direct current power source device 6 is applied to respective water collecting pipe or pipes 4 and the power applicable pipe or pipes 5 forming a pair or pairs, and contaminants collected together with clearance water from the contaminated soil 1 are collected into the water collecting pipe or pipes 4 by the electrical separation and recovered onto the ground. Also the contaminants can be recovered in the gaseous state.

7. 发明专利

JPH09268888A TUNNEL LINING METHOD USING COMPOSITE PANEL 失效
公开(公告)号：JPH09268888A
公开(公告)日：1997-10-14
申请号：JP9590896
申请日：1996-03-27
申请人： NIPPON STEEL CORP
发明人： TATSUHARA TAKESHI , KAKIZAKI MINORU , HASEGAWA HISASHI , GUNJI SHIGERU , TAKEUCHI TAKASHI
IPC分类号： E21D11/04 , E21D11/10 , E21D11/20
摘要： PROBLEM TO BE SOLVED: To provide a lining method using a panel which is capable of greatly reducing the panel weight in transportation and assembling to a site, excellent in the execution, capable of shortening the construction period, and which exhibits the excellent strength. SOLUTION: In this tunnel lining method, a composite panel 1 comprising one or a plurality of steel plates and concrete along the circumferential direction of a tunnel is used. Steel plates 4 of the composite panel 1 is a bent steel plate 4 which is corrugated in the longitudinal direction and provided with shear connector, the inside of the bent steel plate 4 is formed of precast concrete, and the outside of the bent steel plate 4 is formed of concrete poured after the assembly at site of the bent steel plate 4. The method can be served for a newly installed tunnel, and the secondary lining of an existing tunnel. Highly flowing concrete can be used for concrete to be poured after the assembly at site.

8. 发明专利

JPS62266484A INSPECTION FOR TIP POSITION OF EXCAVATION TUBE USING MAGNETIC SENSOR 失效
公开(公告)号：JPS62266484A
公开(公告)日：1987-11-19
申请号：JP10956286
申请日：1986-05-15
申请人： NIPPON STEEL CORP , DAIWA TANSA GIJUTSU KK
发明人： HASEGAWA HISASHI , SAKO YOSHIHIRO , GUNJI SHIGERU , WATANABE TAKESHI
IPC分类号： E21D9/093 , E21D9/06 , G01V3/08 , G01V3/10
摘要： PURPOSE:To enable inspection of an absolute position of the tip of an excavation tube without generating accumulative errors, by lowering a magnetic sensor into a plurality of drilling holes excavated on a line crossing a target propulsion orbit to detect magnetism. CONSTITUTION:In a non-open excavation underground propulsion method, a plurality of vertical drilling holes (a), (b), (c), (d)... are excavated into soil 2 on both sides of a target propulsion orbit 1 between a start point and an arrival point at proper intervals on a line crossing the target propulsion orbit 1 and the individual drilling holes are treated to prevent the collapse of the hole walls thereof and a non-magnetic pipe 5 such as vinyl chloride pipe is inserted into each hole so that a magnetic sensor can be moved into or out of it smoothly. An excavation is done while grasping the propulsion distance of an excavation pipe 6 and when the tip of the excavation pipe 6 arrives among the drilling holes (a)-(d), magnetic sensors lower into the drilling hole at a uniform speed while measuring the depth to detect and record residual magnetism or magnetism caused by magnetization at the tip of the excavation pipe 6. The horizontal and vertical positions of the tip of the excavation pipe 6 are determined by a specified formula from a peak value of the recorded data.

9. 发明专利

JP2000273973A COVERING METHOD FOR ANTICORROSION METAL SHEET FOR PREVENTING DETERIORATION OF CONCRETE STRUCTURE 失效
公开(公告)号：JP2000273973A
公开(公告)日：2000-10-03
申请号：JP7919399
申请日：1999-03-24
申请人： NIPPON STEEL CORP
发明人： KANAI HISASHI , ISHIDA MASAMI , GUNJI SHIGERU , KAMEI MOTOHIRO , OKAMURA AKIRA , SAITO YUICHI
IPC分类号： E04B1/66 , C23F15/00
摘要： PROBLEM TO BE SOLVED: To easily provide a cover for a concrete structural body placed under corrosive environment by embedding and fixing an anticorrosive metal during concrete placement, placing the outer peripheral end portion of the anticorrosive sheet metal having the same material as a fixing metal on the fixing metal after concrete hardening, welding by overlapped partial welding and hermetically sealing. SOLUTION: As an anticorrosive metal, titanium or stainless steel which have no possibility of the deterioration with time is used. An anticorrosive fixing metal 3 is embedded in concrete 1 in such a manner that its metal surface appears on the surface of concrete 1. After hardening of concrete 1, the outer peripheral end portion of the sheet metal 2 having the same material as fixing metal 3 is placed in such a manner that it is overlapped to the fixing metal 3, and the overlapped portion is jointed by the indirect resistance seam welding method thereby forming a hermetic seal. In this way, the surface of a concrete structural body which is placed under the corrosive environment such as concrete structures, ozone treatment layers and flow layer type activated carbon adsorption layer can be covered simply and economically.

10. 发明专利

JPH10131212A CONSTRUCTION METHOD FOR UNDERGROUND TANK 失效
公开(公告)号：JPH10131212A
公开(公告)日：1998-05-19
申请号：JP29089396
申请日：1996-10-31
申请人： NIPPON STEEL CORP , SHIMIZU CONSTRUCTION CO LTD , JGC CORP
发明人： YOSHIWAKA HIDEHIKO , ISHIBASHI YOICHI , FUSHIDA TAKASHI , GUNJI SHIGERU , TATSUHARA TAKESHI , DENDA ATSUSHI , YONEYAMA KAZUYUKI , HASHIMOTO NOBUYUKI
IPC分类号： E02D29/00 , B65G5/00
摘要： PROBLEM TO BE SOLVED: To safely and easily execute a large-depth cylindrical underground tank. SOLUTION: A large-depth hole 11 is excavated while a protective liquid 13 is filled inside, and a holding means 12 capable of holding a tank main body is provided at its ground surface section. The tank main body is constituted of a bottomed cylindrical tank bottom section 14a and many cylindrical tank wall sections 14b connected on it, they are connected upward in sequence to form a connection body 14d, and it is hoisted and supported by a crane 16 and lowered in the protective liquid 13 in the vertical attitude. Water 17 is filled in the connection body 14d to adjust a suspended load so that the connection body 14d can be sunk without being floated, and a part of buoyancy is utilized to prevent the suspended load from becoming excessive. The tank wall sections 14b are connected upward to extend the connection body 14d upward while the connection body 14d is held by the holding means 12. After the tank main body is formed, a filler is filled between its bottom face and the hole bottom face for the consolidation of foundation, and the filler is also filled between the tank main body and hole wall face.

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