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1. 发明专利

JPH11309779A FLAT TUBULAR LINING MATERIAL AND ITS PRODUCTION 失效
公开(公告)号：JPH11309779A
公开(公告)日：1999-11-09
申请号：JP13773298
申请日：1998-04-30
申请人： TOKYO GAS CO LTD , OSAKA BOSUI KENSETSUSHA KK
发明人： HAYASHI MITSUTOSHI , KOMORI MITSUNORI , MIZUKAMI SEIJI , MIYAZAKI YASUO , KAMIIDE AKIRA , TANIMURO HIROHISA
IPC分类号： F16L58/10 , B29C63/34 , B29K23/00 , B29L23/00 , F16L1/00 , F16L11/04
摘要： PROBLEM TO BE SOLVED: To provide a flat tubular lining material capable of being inflated and restored to a cylindrical shape without extending a heating and pressing time. SOLUTION: In a flat tubular lining material made of hard or semihard polyolefin having an outer diameter almost corresponding to the inner diameter of a lining objective pipe in terms of roundness and taken up in a roll shape, the lining material 1 is extruded to be molded into an oval shape and cooled and solidified to be flattened from the major axis side thereof under reheating.

2. 发明专利

JP2000062025A METHOD FOR LINING INNER SURFACE OF PIPE 失效
公开(公告)号：JP2000062025A
公开(公告)日：2000-02-29
申请号：JP25453198
申请日：1998-08-24
申请人： TOKYO GAS CO LTD , OSAKA BOSUI KENSETSUSHA KK
发明人： HAYASHI MITSUTOSHI , KOMORI MITSUNORI , KOSEKI MASATO , MIZUKAMI SEIJI , MIYAZAKI YASUO , KAMIIDE AKIRA , TANIMURO HIROHISA , UCHIDA TAKESHI
IPC分类号： F16L1/00 , B29C63/34 , B29L23/00
摘要： PROBLEM TO BE SOLVED: To realize the natural and smooth insertion of a piping material in a pipeline by a method wherein the interior of a flattened pipe material is held in a reduced pressure after being softened under heat so as to execute a folding work into a U-shape under the state that the degree of a flattening work is increased. SOLUTION: After a piping material 1 is softened into a drawable state from a drum 2 by being internally heated with a steam, the steam is stopped so as to connect the interior of the piping material 1 with a vacuum generating device through a conduit 3 and a branch pipe 5 connecting to the midway of the conduit 3 in order to be held under a reduced pressure. Next, under the above-mentioned state, the piping material 1 is passed from a deformation work zone A to a constrained cooling zone B so as to gradually and deformingly work the piping material from a flattened piping state to a form folded into a U-shape. Since the interior of the piping material 1 is held under a reduced pressure, the degree of a flattening work of the piping material is increased from its flattened state to an over-flattened state, resulting in being turned into a form to be easily folded into a U-shape and making a natural and smooth execution of folding work into the U-shape possible.

3. 发明专利

JPH11115052A LINING METHOD OF PIPE CONDUIT 失效
公开(公告)号：JPH11115052A
公开(公告)日：1999-04-27
申请号：JP27698097
申请日：1997-10-09
申请人： TOKYO GAS CO LTD
发明人： HAYASHI MITSUTOSHI , MINAMI TOMOYUKI , MAKI YUUICHI , MIZUKAMI SEIJI
IPC分类号： F16L1/00 , B29C63/34 , B29C63/36 , B29L23/00
摘要： PROBLEM TO BE SOLVED: To smoothly conduct both insertion and expansion-restoration of a folding pipe into a pipe conduit by forcibly cooling a pipe given a folding work immediately before the inlet of a pipe conduit at its outer surface from the outside while being restrained in the state to be set stationarily in a folded shape. SOLUTION: A pipe 1 passes through a deformation working zone A to a restraint cooling zone B during movement from a drum 2 toward a pipe conduit inlet a1. While being passed through the deformation working zone A, the pipe 1 is gradually deformation worked from a flat pipe shape to a U-shaped folded shape, and its effective outer diameter is reduced to be a size capable of being inserted in a pipe conduit (a). During the period of passing through the restraint cooling zone B, a U-shaped folded pipe is subjected to a forcible cooling operation in a configurationally restrained shape. A forcible cooling device 9 is installed over the substantially entire length of the restraint cooling zone B, and a cooling spouting mold 9a and cold air blowing mold 9b are applied so that the pipe is set stationarily by forcible cooling in a configurationally restrained shape as being folded into a U-shaped form.

4. 发明专利

JPH08142033A METHOD AND APPARATUS FOR FINISHING INNER SURFACE OF CENTRIFUGALLY MOLDED TUNNEL LINER 失效
公开(公告)号：JPH08142033A
公开(公告)日：1996-06-04
申请号：JP28680894
申请日：1994-11-21
申请人： TOKYO GAS CO LTD , NIPPON KOATSU CONCRETE KK
发明人： HAYASHI MITSUTOSHI , ISHITANI MITSUO , KUDO RYUICHI
IPC分类号： E21D11/08 , B28B1/20 , B28B11/08
摘要： PURPOSE: To smoothly finish the inner surface of a circular arc plate-shaped concrete liner by applying fine surface roughening processing to the surface layer of the concrete in a form after centrifugal compaction to form a rough surface and leveling the rough surface before subjecting the same to surface smoothing iron finish. CONSTITUTION: As a rod-shaped ring cutter 51, far example, a profile steel rod is used and the circular arc blade of the ring cutter 51 moves while shaves the surface of concrete to roughen the surface of the surface layer of concrete. Next, a rotary cylindrical roller 52 is pressed to the upper surface of concrete and once reciprocally moved by a feed device while axial reciprocal movement is applied to the upper surface of concrete. The rough surface of the surface layer of concrete is smoothly finished. Subsequently, a surface smoothing slide plate member 53 is axially reciprocated once in the feed direction while pressed to the upper surface of concrete to smooth the surface of concrete.

5. 发明专利

JPH08142030A FORM OF JOINT BOX OF CENTRIFUGALLY MOLDED TUNNEL LINER 失效
公开(公告)号：JPH08142030A
公开(公告)日：1996-06-04
申请号：JP28680694
申请日：1994-11-21
申请人： TOKYO GAS CO LTD , NIPPON KOATSU CONCRETE KK
发明人： HAYASHI MITSUTOSHI , ISHITANI MITSUO , KUDO RYUICHI
IPC分类号： E21D11/08 , B28B1/20 , B28B7/28
摘要： PURPOSE: To provide the hermetically closed structure of the form for forming a joint box attached to a part of a form for molding a centrifugally molded tunnel liner. CONSTITUTION: The fall lid 4 made of rubber inserted in the upper surface opening of a form 2 for forming a joint box under pressure so that the upper surface thereof becomes flush with the upper end surface of the form 2 is provided. The elastic protrusions fitted in the upper surface opening of the form 2 are provided to four peripheries of the fall lid 4 and detaching holes are provided to four corners thereof.

6. 发明专利

JPH07279586A PROPULSION OF DOUBLE PIPE 失效
公开(公告)号：JPH07279586A
公开(公告)日：1995-10-27
申请号：JP7485694
申请日：1994-04-13
申请人： TOKYO GAS CO LTD , ISEKI TORY TECH INC
发明人： HAYASHI MITSUTOSHI , NAGASHIMA SHINGO , KURASHINA MINORU , IYAMA MAKOTO , UNO HIDEKI , SATO TORU
IPC分类号： E21D9/06 , F16L1/024
摘要： PURPOSE:To shorten the construction period by executing a plurality of works at the same time, when a double pipe consisting of an inner pipe and an outer pipe is propelled. CONSTITUTION:An excavating machine 11 for excavating a bank is arranged at the head, and an original pushing device 13 for starting shaft is installed. In succession with the excavating machine 11, a top pushing device 12 is arranged, and a double pipe A consisting of an inner pipe 2 for the flow of the gas substance inside and an outer pipe 2 keeping a prescribed gap from the inner pipe 1 is succeeded with the device 13. The outer pipe 2 of the double pipe A which is propelled already is connected with the wall surface in the starting shaft, and only the excavating machine 11 is propelled by operating the top pushing device 12. In parallel to this propulsion, the inner pipe 1 of a new double pipe A is welded with the inner pipe 1 of the double pipe A which is already propelled. After the propulsion of the excavating machine 11 by the top pushing device 12 and the connection with the inner pipe 1 complete, the connection between the outer pipe 2 of the double pipe A which is already propelled and the wall surface is released, and a thrust is applied to the new double pipe A by operating the original pushing device 13, and the top pushing device 12 is contracted at the same time.

7. 发明专利

JPH07259483A MAIN PIPE INSERTION TO SHEATH PIPE 失效
公开(公告)号：JPH07259483A
公开(公告)日：1995-10-09
申请号：JP5194494
申请日：1994-03-23
申请人： TOKYO GAS CO LTD , OKUMURA CORP
发明人： HAYASHI MITSUTOSHI , NAGASHIMA SHINGO , KURASHINA MINORU , WADA HIROSHI
IPC分类号： E21D9/06
摘要： PURPOSE:To correctly insert a main pipe into a sheath pipe by small thrust even in the case when the sheath pipe is diagonally buried by inserting the main pipe into the sheath pipe by way-of floating it by air bags or a specific gravity difference of liquid. CONSTITUTION:After a sheath pipe 30 is propelled between a starting vertical shaft 10 and an arriving vertical shaft 20, a water stop cap 51 with a plumbing pipe 54 installed on it is put on an opening on the side of the arriving vertical shaft 20 of the sheath pipe 30, and a water stop packing 52 which opens its opening is also installed on an opening on the side of the starting vertical shaft 10. Thereafter, the inside of the sheath pipe 30 is filled with water by supplying water to the inside of the sheath pipe 30 from the pumbing pipe 54, and the inside of a main pipe 40 is properly expanded by arranging air bags 53 in it and delivering air into it. Thereafter, when the main pipe 40 is drawn into the sheath pipe 30 by a winch wire 55, water enters the inside of the main pipe 40, weight of the main pipe 40 and buoyancy of the air bags 53 are set off, and it is possible to insert the main pipe 40 into the sheath pipe 30 without the main pipe 40 making contact with the inwall of the sheath pipe 30. Additionally, liquid specific gravity of which is larger than that of water is supplied to the inside of the sheath pipe 30 by filling the inside of the main pipe 40 with water.

8. 发明专利

JPH07256615A CLEANER FOR UPPER COVER OF CENTRIFUGAL MOLDING TUNNEL LINER FORM 失效
公开(公告)号：JPH07256615A
公开(公告)日：1995-10-09
申请号：JP5415694
申请日：1994-03-24
申请人： TOKYO GAS CO LTD , NIPPON KOATSU CONCRETE KK
发明人： HAYASHI MITSUTOSHI , ISHITANI MITSUO
IPC分类号： B08B7/04 , B28B1/20
摘要： PURPOSE:To uniformly clean a curved upper cover 100 all over the full surface thereof to contribute to efficient enhancement of production of a centrifugal- molded tunnel liner. CONSTITUTION:A cleaner comprises a transport device 20 for transporting an upper cover 100 of a circular tunnel liner form in the state that it is hung with the cleaning surface thereof down and the curving direction of the curved surface thereof is directed to a forward transport direction, a cylindrical brush 32 for rotationally cleaning the cleaning surface in contact states, a cleaning tool provided with a counterweight 34 urging the brush 32 upward, and water jet spray nozzles 26, 27, 28 arranged before and after the cleaning position of the cleaning tool.

9. 发明专利

JPH07247797A CIRCULAR HOLDER OF LINING WALL FOR TUNNEL CONSTRUCTION 失效
公开(公告)号：JPH07247797A
公开(公告)日：1995-09-26
申请号：JP3879094
申请日：1994-03-09
申请人： TOKYO GAS CO LTD , SHIMIZU CONSTRUCTION CO LTD
发明人： HAYASHI MITSUTOSHI , KURASHINA MINORU , TANAKA DAIZO
IPC分类号： E21D23/00 , E21D11/40
摘要： PURPOSE:To keep the circle of a tunnel without reduction of construction efficiency of the tunnel. CONSTITUTION:Two sets of device units 13 provided with a circular body 11 arranged along the inner wall face of a tunnel, and rotary rings 12 which are attached to the upper and lower parts of the circular body 11 and freely rotated around the tangential axial line of the circular body 11 and also freely positioned to contact the inner wall face of the tunnel, are adjacently installed in the axial direction of the tunnel. This pair of device units 13, 13 are connected to each other at the upper and lower parts by connecting members 14. Ropes 20 are fixed to be attracted by a shielding excavator.

10. 发明专利

JPH07224590A PIPE JACKING METHOD OF DOUBLE-TUBE 失效
公开(公告)号：JPH07224590A
公开(公告)日：1995-08-22
申请号：JP1614894
申请日：1994-02-10
申请人： TOKYO GAS CO LTD , ISEKI TORY TECH INC
发明人： HAYASHI MITSUTOSHI , NAGASHIMA SHINGO , KURASHINA MINORU , IYAMA MAKOTO , UNO HIDEKI , SATO TORU
IPC分类号： E21D9/06 , F16L1/024
摘要： PURPOSE:To reduce the construction period and cost, by welding two pipes within the conventional one welding time, when jacking a double-pube to lay a pile line. CONSTITUTION:A first double-tube A1 in which a first outer pipe 6 shorter than an inner pipe 5 is fitted in the first inner pipe 5 having a specified length and a second double-tube A2 in which a second outer pipe 8 having such a length that the sum length with the inner pipe 7 is the same length with the sum of the inner pipes 5, 7 is inserted in the second inner pipe 7 having a specified length, is arranged in series. The inner pipe 3 and the inner pipe 5 of the double-tube A already jacked are positioned to contact each other and also the inner pipe 5 is positioned to contact the inner pipe 7 and in this state, respective contact parts are welded. Accordingly, two welding of the inner pipes 3, 5 and the inner pipes 5, 7 can be executed within one welding time.

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