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1. 发明专利

JPH1194126A PIPING MATERIAL AND PIPING METHOD USING THIS PIPING MATERIAL 失效
公开(公告)号：JPH1194126A
公开(公告)日：1999-04-09
申请号：JP25460697
申请日：1997-09-19
申请人： KAWASAKI STEEL CO , TOKYO GAS CO LTD , KAWATETSU TECHNO CONSTRUCTION
发明人： MASUDA TOSHIICHI , KOIZUMI HIDEHIKO , KAGAYA FUMIO , HIGUCHI NARITO , HAYASHI MITSUTOSHI , ANAMIZU TAKASHI , DAIKUHARA TAKESHI , KAWAGUCHI TAKAHIRO , KURASHINA MINORU , FUKUSHIMA YUJI , SASAKI TARO , ADACHI AKIRA , TANIGUCHI KAZUHIKO , OMURA JIRO , NAKANISHI SHIGEAKI
IPC分类号： F16L1/00
摘要： PROBLEM TO BE SOLVED: To easily move an inner pipe at the time of jointing the inner pipe by welding by providing the inner pipe and an outer pipe for protecting the inner pipe, providing the outer surface of the inner pipe with a support member for supporting the inner pipe on its lower side, and piping the inner pipe in the state of protruding from both longitudinal ends of the outer pipe. SOLUTION: In the case of piping a gas conduit in the earth, piping material comprising an inner pipe 1 which is a gas pipe, and an outer pipe 2 for protecting the inner pipe 1 is laid in a piping ditch excavated along a piping line. In this case, the length of the inner pipe 1 is to be longer than that of the outer pipe 2, and the inner pipe 1 is provided with a ring-like support member 3 for supporting the inner pipe 1 so that the inner pipe 1 does not come in direct contact with the outer pipe 2. Filling space of a filler is therefore ensured. Adjacent inner pipes 1, 1 are welded together after edge adjustment. Cable protecting pipes 4 and inside filling pipes 5 are connected by connecting pipes 6. Back filling is performed after adjusting a connecting member 7 formed of a half-divided tubular body, from the upper and lower sides of the outer pipe 2 to connect the outer pipe 2.

2. 发明专利

JPH10140994A SHIELD TUNNEL CONSTRUCTION METHOD 失效
公开(公告)号：JPH10140994A
公开(公告)日：1998-05-26
申请号：JP30265796
申请日：1996-11-14
申请人： KAWASAKI STEEL CO
发明人： MASUDA TOSHIICHI , OSADA TOSHIO , TAKABE RYOJI
IPC分类号： E21D11/15
摘要： PROBLEM TO BE SOLVED: To improve the efficiency of lining or a machine tail portion by carrying a plate shell prepared outside a tunnel to a place near the tail portion of a shield machine at the other end of the tunnel and by widening the diameter, making it into a true-circular cylinder and connecting to an existing segment. SOLUTION: A plate shell 2 having a lap portion in a peripheral direction is prepared outside a tunnel way 1, the plate shell 2 is placed on a carriage 3 and carried to a place near a tail portion of a shield machine at the other end portion. Then, at that plate, its diameter is widened with jacks or the like, both the ends of the periphery are fastened with bolts and made into a true-circular cylindrical shape and connected to existing segment. In this case, the diameter of plate shell 2 when widening the diameter is made larger in response to the stroke of the jack, and the number of the plate shells 2 is set depending on the carrying capacity of a carriage 3 for instance. By doing this, the number of parts can be considerably reduced, the length of connecting portion can be shortened, and man-hour can be considerably reduced, working hours can be shortened thereby increasing the speed of excavation.

3. 发明专利

JPH1046624A METHOD AND DEVICE FOR EXCAVATION AND BACKFILLING 失效
公开(公告)号：JPH1046624A
公开(公告)日：1998-02-17
申请号：JP20466196
申请日：1996-08-02
申请人： KAWASAKI STEEL CO , KAWATETSU TECHNO CONSTR KK
发明人： MASUDA TOSHIICHI , MIYOSHI ISAMU , MUTOU KOUSHIROU
IPC分类号： E02F7/02
摘要： PROBLEM TO BE SOLVED: To conduct excavation and backfilling works without slewing an excavator, and to improve operating efficiency and safety by installing a forward rotatable and reversely rotatable conveyor to an opening section in the central lower section of the excavator. SOLUTION: Soil and sand excavated by a backhoe 10 are placed directly on a forward rotatable and reversely rotatable conveyor 14 mounted to an opening section in the central lower section of the backhoe 10 at the time of excavation. Soil and sand are conveyed up to a hopper 16 at the rear through another conveyor 13, and carried to the rear by a slide type belt conveyor 18, and loaded on a dump car 20. Soil and sand for backfilling are thrown down onto the hopper 16 from the dump car 20, and conveyed forward by the slide type belt conveyor 18 at the time of backfilling. Soil and sand are thrown down onto the conveyor 1 through a temporary chute 22, further transferred onto the conveyor 14 and transported forward, and backfilled directly. Accordingly, excavation and backfilling can be conducted continuously in a short time.

4. 发明专利

JPH04131324A METHOD FOR PREVENTING SURFACE ROUGHENING OF HEAT TREATED STEEL PIPE 失效
公开(公告)号：JPH04131324A
公开(公告)日：1992-05-06
申请号：JP25223690
申请日：1990-09-21
申请人： KAWASAKI STEEL CO
发明人： MASUDA TOSHIICHI
IPC分类号： B21D3/00 , C21D1/52 , C21D9/08 , C23G1/08
摘要： PURPOSE:To easily, surely and inexpensively produce the heat treated steel pipe having excellent quality in surface roughness by subjecting the steel pipe to a 1st heat treatment in a direct firing furnace, pickling this pipe to remove its surface scale and subjecting the steel to straightening then to a heat treatment for scale formation. CONSTITUTION:The 1st heat treatment of the steel pipe is executed in the direct firing furnace which burns fuel, such as petroleum and gas, and directly heats the steel pipe at the temp. exceeding about 700 deg.C. This steel pipe is pickled in order to remove the surface scale generated on the surface of the steel pipe by this 1st heat treatment. The steel pipe is then subjected to the straightening in order to set the state (straightness, out of roundness, etc.) of the steel pipe. The execution of the straightening by using ordinary straightening rolls is possible. The steel pipe is thereafter heat treated at about 500 to 700 deg.C temp. range to form extremely thin scale layers of about 1 to 10mum on its surfaces. The heat treated steel pipe having the good surface roughness and corrosion resistance is easily, surely and inexpensively produced in this way without using an oxygen-free atmosphere furnace.

5. 发明专利

JPH0211724A METHOD FOR PREVENTING OF HARDENING CRACKS AT THE TIME OF SUBJECTING STEEL TUBE TO IMMERSION HARDENING 失效
公开(公告)号：JPH0211724A
公开(公告)日：1990-01-16
申请号：JP15928988
申请日：1988-06-29
申请人： KAWASAKI STEEL CO
发明人： TAMAOKI KATSUOMI , MASUDA TOSHIICHI
IPC分类号： C21D1/18 , C21D9/08
摘要： PURPOSE:To prevent hardening cracks at the time of subjecting a steel tube to immersion hardening by closing both ends of the steel tube with a blind patch contg. an air vent, thereafter heating it and subjecting the steel tube to immersion hardening. CONSTITUTION:Both ends of a steel tube 1 are closed with a blind patch 2. The blind patch 2 is provided with an air vent 3. The steel tube 1 arranged in such a manner is heated and is subjected to immersion hardening in a water tank or the like. By this method, the hardening cracks at the time of subjecting the steel tube to immersion hardening can be prevented.

6. 发明专利

JP2002038876A CUT-OFF STRUCTURE FOR CONNECTING PART OF PROPULSION PIPE 失效
公开(公告)号：JP2002038876A
公开(公告)日：2002-02-06
申请号：JP2000219751
申请日：2000-07-19
申请人： KAWASAKI STEEL CO , KAWATETSU TECHNO CONSTRUCTION , KASEI CO C I
发明人： MASUDA TOSHIICHI , ADACHI AKIRA , JINGU KEISUKE
IPC分类号： E21D9/06 , F16L1/024 , F16L21/02
摘要： PROBLEM TO BE SOLVED: To improve a cut-off structure for a connecting part of a propulsion pipe. SOLUTION: The cut-off structure for the connecting part is constituted as follows: one end of the propulsion pipe 1 is formed with an inserting part 32 having an inserting short pipe 321; the other end thereof is formed with a receiving port part 31 having a larger diameter than the outside diameter of the pipe 321 on the side of an inner surface; and an water-expansive sealant 33 is stuck on either the inserting part 32 or the receiving port 31.

7. 发明专利

JP2000257397A METHOD FOR REPAIRING TUNNEL INNER WALL 失效
公开(公告)号：JP2000257397A
公开(公告)日：2000-09-19
申请号：JP5989799
申请日：1999-03-08
申请人： KAWASAKI STEEL CO , KAWATETSU TECHNO CONSTRUCTION
发明人： MASUDA TOSHIICHI , KOIKE TAKESHI , TERAMOTO TADASHI , ADACHI AKIRA , MURAKAMI MASARU
IPC分类号： E21D11/15
摘要： PROBLEM TO BE SOLVED: To quickly perform working by carrying two steel-make members in a tunnel after elastic deformation is performed in the direction in which the area of the traverse cross section of at least one member of two steel-made members whose traverse cross section is circular is contracted, and restoring them at a repair position so as to join them. SOLUTION: A set of a steel-make large-sized member 2 whose center angle of the traverse cross section is, for instance, 27 degrees and a steel-made small- sized member 3 whose center angle is 90 degrees are manufactured. A part between joints provided on both the peripheral ends of the large-sized member 2 is connected by a wire through a chain block and elastic deformation is performed so that the opening part of the peripheral end is reduced. The large- sized member 2 and the small-sized member 3 are mounted on a truck from the inlet of a tunnel to be carried in the tunnel. Furthermore, in a repair ground point the tightening of the large-sized member 2 is released to be fitted to the circumference of the tunnel, after the small-sized member 3 is arranged, the joints of both the members 2, 3 are joined by welding, and the inner wall of the tunnel is repaired. Thereby working can be executed quickly.

8. 发明专利

JPH10140995A STEEL SEGMENT FOR CONSTRUCTION OF SHIELD TUNNEL AND SHIELDING METHOD 失效
公开(公告)号：JPH10140995A
公开(公告)日：1998-05-26
申请号：JP30265896
申请日：1996-11-14
申请人： KAWASAKI STEEL CO , KAWATETSU TECHNO CONSTR KK
发明人： MASUDA TOSHIICHI , OSADA TOSHIO , TAKABE RYOJI , FUJIMOTO TOMOYA , IMASHIO HIROYUKI , ADACHI AKIRA
IPC分类号： E21D11/15
摘要： PROBLEM TO BE SOLVED: To execute the lining, in particular assembling segments at a shield machine tail more advantageously than conventional in view of economy and efficiency. SOLUTION: Steel segments 1 provided with joints 2a, 2B at the and in the circumferential and radial directions and mutually connected through the joints 2A, 2B at the nearby position of the tail of a shield machine in constructing a shield tunnel and assembled to form a tubular body with a specified shield diameter ds are constituted of the first and second steel pipe pieces 1A, 1B. The steel pipe pieces 1A, 1B are transferred to the nearby position of the tail part without interference with the subsequent equipment of the shield machine.

9. 发明专利

JPH0372022A PRODUCTION OF LOW ALLOY HEAT RESISTING STEEL EXCELLENT IN TOUGHNESS AT LOW TEMPERATURE 失效
公开(公告)号：JPH0372022A
公开(公告)日：1991-03-27
申请号：JP20917889
申请日：1989-08-11
申请人： KAWASAKI STEEL CO
发明人： MASUDA TOSHIICHI , SASAKI AKISHI
IPC分类号： C21D8/00 , C22C38/00 , C22C38/24
摘要： PURPOSE:To produce a Cr-Mo-V low alloy heat resisting steel having superior toughness at low temp. by subjecting a steel containing specific percentages of C, Si, Mn, Cr, Mo, V, and Al to hot working and immediately to hardening treatment. CONSTITUTION:A low alloy heat resisting steel has a composition consisting of 0.04-0.18% C,

10. 发明专利

JPH0123249B2 失效
公开(公告)号：JPH0123249B2
公开(公告)日：1989-05-01
申请号：JP23821983
申请日：1983-12-16
申请人： KAWASAKI STEEL CO
发明人： MASUDA TOSHIICHI , YAMAMOTO KYOMI , SASAKI SHINZO , SAKURADA KAZUYUKI
IPC分类号： B23D36/00

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