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1. 发明专利

JPH09195678A UNDERGROUND DRAWING JIG OF STEEL PIPE AND DRAWING ENGINEERING METHOD 失效
公开(公告)号：JPH09195678A
公开(公告)日：1997-07-29
申请号：JP599996
申请日：1996-01-17
申请人： TOKYO GAS CO LTD , ISEKI TORY TECH INC
发明人： HAYASHI MITSUTOSHI , MIYAMOTO YUKINOBU , DAIKUHARA TAKESHI , NARA KENSUKE , FUJIMORI ISAO
IPC分类号： E21D9/06 , F16L1/024
摘要： PROBLEM TO BE SOLVED: To provide a jig and an engineering method capable of smoothly laying a steel pipe of a drawing object underground in a long distance. SOLUTION: A starting vertical shaft 1 is formed on one s side of a steel pipe laying route, an arriving vertical shaft 2 is formed on the other side, and on the ground on the side of the starting vertical shaft 1, a road setting type propulsive machine 3 to deliver a rotating rod 4 for underground drilling by required propulsive force or to pull it back by required drawing force is set. In a first process, a drill head is installed on a head end of the rod 4 delivered from the road setting type propulsive machine 3, a boring hole is drilled underground from the starting vertical shaft 1 to the arriving vertical shaft 2 by making the drill head intrude underground while rotating it. In a second process, a reamer 6, a drawing jig 8 and a laying object steel pipe 7 are connected in series to a head end part of the aforementioned rod 4 on the side of the arriving vertical shaft 2, and the steel pipe 7 is constructed in such a way as to draw it into the boring hole by pulling back the rod 4 by drawing force from the front by the propulsive machine 3.

2. 发明专利

JPH07224593A PIPE JACKING METHOD OF DOUBLE-TUBE 失效
公开(公告)号：JPH07224593A
公开(公告)日：1995-08-22
申请号：JP1614794
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： E02B9/06 , E02F5/10 , E21D9/06 , F16L1/024 , F16L1/038
摘要： PURPOSE:To reduce the construction period and cost, by simultaneously carrying out the jacking work and the auxiliary works like welding and non-breakage tests, on jacking a double-tube pipe to lay a pipe line. CONSTITUTION:A pushing ring 3 is attached to the front end of a basal pushing device 1 and a frame base 2 provided with a mounting member 4 loaded with a new double-tube A2 or the inner pipe 5b of double-tube A2 is fitted thereto. The pushing ring 3 is positioned to contact the outer pipe 6a of double-tube A1 to be thrusted and inner pipe 5b of double-tube A2 is arranged to contact the inner pipe 5a of double-tube A1. While jacking the double-tube A1, the joining part of the inner pipes 5a, 5b are welded and the auxiliary works are executed immediately after the welding.

3. 发明专利

JPH06272484A MASTER PUSHING DEVICE IN DOUBLE PIPE PROPULSION CONSTRUCTION METHOD 失效
公开(公告)号：JPH06272484A
公开(公告)日：1994-09-27
申请号：JP8511593
申请日：1993-03-22
申请人： TOKYO GAS CO LTD , ISEKI TORY TECH INC
发明人： HAYASHI MITSUTOSHI , FUJITA AKITAKA , KURASHINA MINORU , IYAMA MAKOTO , UNO HIDEKI
IPC分类号： E21D9/06
摘要： PURPOSE:To secure a space for performing the work of connecting pipes, cables, and the like disposed inside an inner pipe at the time of propelling a double pipe formed of an inner pipe and an outer pipe. CONSTITUTION:The push ring 13 of a master pushing device B is provided with a hole 13b formed in such a way as to coincide with the axis of the inner pipe l of a double pipe A and to be larger than the outer diameter of the inner pipe 1 and smaller than the inner diameter of an outer pipe 2. A plate like reinforcing member 17 is rigidly fixed to the jack 12 side of the push ring 13 to secure strength. At the time of connecting a new double pipe A to the already propelled double pipe A, the push ring 13 is brought into contact with the outer pipe 2, and the end part of the inner pipe 1 is inserted through in the hole 13b. A large space 19 can be thereby secured between the push wheel 13 and a reaction receiving frame 11a, and pipe-cable connecting work can be performed making use of this space. Since the pipe end of the inner pipe 1 dies not come in contact with the push ring 13, the pipe end is prevented from being flawed so as to prevent the generation of a welding defect.

4. 发明专利

JPH06257396A PREVENTING METHOD FOR INJURY OF INNER CIRCUMFERENTIAL FACE OF MAIN TUBE IN PROPULSIVE CONSTRUCTION METHOD FOR DOUBLE TUBE 失效
公开(公告)号：JPH06257396A
公开(公告)日：1994-09-13
申请号：JP6594793
申请日：1993-03-03
申请人： TOKYO GAS CO LTD , ISEKI TORY TECH INC
发明人： HAYASHI MITSUTOSHI , FUJITA AKITAKA , NAGASHIMA SHINGO , IYAMA MAKOTO , UNO HIDEKI
IPC分类号： E21D9/13 , E21D9/06 , E21D9/12
摘要： PURPOSE:To prevent the inner circumferential face of a main tube from being injured by means of mud feed and drain tubes going in and out in the main tube, when the main tube of a direct push propulsive double steel tube is propelled in the earth. CONSTITUTION:When a direct push propulsive double steel tube 5 is propelled with a prime pusher jack 8 and mud feed and drain tubes 10, 11 are taken in and out against the main tube 7 of the double steel tube 5, a holding member 13 consisting of a tube receiving base 13a and an elastic wheel 13b is fitted to the mud feed and drain tubes 10, 11. While running the holding member 13 in the main tube 7, the mud feed and drain tubes 10, 11 are taken in and out of the main tube 7.

5. 发明专利

JPH06257387A INJECTION METHOD FOR UNGUENT AND BACK-FILLING MATERIAL AND DEVICE THEREFOR IN PROPULSION METHOD FOR DOUBLE TUBE 失效
公开(公告)号：JPH06257387A
公开(公告)日：1994-09-13
申请号：JP6594893
申请日：1993-03-03
申请人： TOKYO GAS CO LTD , ISEKI TORY TECH INC
发明人： HAYASHI MITSUTOSHI , FUJITA AKITAKA , NAGASHIMA SHINGO , IYAMA MAKOTO , UNO HIDEKI
IPC分类号： E02B9/06 , E02F5/10 , E21D9/06 , F16L1/038 , E02D29/10
摘要： PURPOSE:To easily insert a hose for feeding unguent and back-filling material through a through hole provided between the inner tube and the outer tube of a double tube in a short time. CONSTITUTION:A winch 9 having a wire 10 is provided on an excavator 8, and a hose 11 provided with marks on the outer circumferential face is wound around a drum 13 which is driven with a driving device 12 and arranged on the starting shaft side. At every propulsion of a double tube 1, the wire is inserted through a through hole 5 provided in the intermediate layer 4 formed between the inner tube 2 and the outer tube 3 of the tube 1, and the end part is connected to the end part (discharge port 15) of the hose. By driving the winch so as to wind up the wire, the hose is inserted through the through hole, and by confirming the mark of the hose, it reaches accurately the position opposite to a check valve 7. Thereafter, a feed device 14 is driven so as to feed unguent and back-filling material through the hose, and the unguent and the back-filling material are injected to the gap 6a against natural ground 6 through the check valve.

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

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.

8. 发明专利

JPH06272485A EXCAVATOR DIRECTION CORRECTING METHOD AND DEVICE THEREFOR 失效
公开(公告)号：JPH06272485A
公开(公告)日：1994-09-27
申请号：JP8511193
申请日：1993-03-22
申请人： TOKYO GAS CO LTD , ISEKI TORY TECH INC
发明人： HAYASHI MITSUTOSHI , FUJITA AKITAKA , NAGASHIMA SHINGO , FUJIMORI ISAO
IPC分类号： E21D9/06 , E21D9/087 , E21D9/093
摘要： PURPOSE:To detect the dislocation of an excavator and correct the propulsion direction when the excavator used in a propulsion construction method is dislocated from a planned line. CONSTITUTION:A reflecting mirror 7 is fitted to a cutter head 1 with a cutter 5 provided at the tip, and a tail shield 2 is provided with a target 10 and a screen 14. When a laser beam 9 is radiated in line with a planned line to start the propulsion of an excavator A, the target and the screen are photographed by a telecamera 15. The photographed images are processed by an image processing device 22, and the respective projection points are made origins O, (o) and stored in an image processing control device 23. The images photographed during the propulsion of the excavator are processed, and spots 10a, 14a are compared with the coordinate value of the origins O, (o) by a comparing device 24. When the spot 14a is displaced from the origin (o), an operating signal is generated to a drive unit 26, and jacks 3a, 3b are driven so that the spot 14a coincides with the origin (o).

9. 发明专利

JPH06272482A LUBRICANT OR BACK-FILLING MATERIAL FILLING METHOD IN DOUBLE PIPE PROPULSION CONSTRUCTION METHOD 失效
公开(公告)号：JPH06272482A
公开(公告)日：1994-09-27
申请号：JP8511393
申请日：1993-03-22
申请人： TOKYO GAS CO LTD , ISEKI TORY TECH INC
发明人： HAYASHI MITSUTOSHI , NAGASHIMA SHINGO , KURASHINA MINORU , IYAMA MAKOTO , UNO HIDEKI
IPC分类号： E21D9/06
摘要： PURPOSE:To facilitate the positioning of a filling member at the time of filling lubricant or back-filling material in a gap between a double pipe and the natural ground by piercing a shield pipe, provided at a double pipe formed of a inner pipe and an outer pipe, with a filling member for filling lubricant or back-filling material. CONSTITUTION:At the time of driving forward a double pipe A with a shield pipe 3 and a check valve 4 formed axially between an inner pipe 1 and an outer pipe 2, or after laying a pipeline, the shield pipe 3 is pierced with a filling member 11 with two packers 15, 16 disposed at a space equal to the length of the double pipe A, or a filling member 11 with two packers 15, 16 disposed at a space corresponding to plural double pipes A, and a hose 12 connected to the member 11; and the packers 15, 16 are expanded in the desired positions for fixing. Since one or plural check valves 4 are opposed between two packers regardless of the elongation of the hose 12, the alignment of the filling member becomes extremely easy.

10. 发明专利

JPH09196233A STEEL PIPE PULLING-IN METHOD 失效
公开(公告)号：JPH09196233A
公开(公告)日：1997-07-29
申请号：JP599696
申请日：1996-01-17
申请人： TOKYO GAS CO LTD , ISEKI TORY TECH INC
发明人： HAYASHI MITSUTOSHI , MIYAMOTO YUKINOBU , DAIKUHARA TAKESHI , NARA KENSUKE , FUJIMORI ISAO
IPC分类号： F16L1/024
摘要： PROBLEM TO BE SOLVED: To pull in a steel pipe over a long distance which is conventionally impossible by a propelling machine alone by effectively utilizing a road setting type propelling machine. SOLUTION: A starting bored hole 1 is provided in one side of a pipe laying path, a destination bored hole 2 is provided in the other side, a road setting type propelling machine 3 having a guide drill unit 31 is installed on the round of the starting bored hole side 1 and a returning device 5 having a propelling jack is installed in the destination bored hole 2. In first step, a drill head is attached to the tip of a rotary rod 4 delivered from the road setting type propelling machine 3, advanced into the ground while rotating the drill head and boring hole is drilled up to the destination bored hole. In second step, the drill head is removed in the destination bored hole 2, instead by serially connecting an expanded hole rimer 6 coincided with a buried pipe diameter and a steel pipe 7 to be pulled in to the end part of the rod 4, the rod 4 is returned by a pulling-in force from the front by the propelling machine 3, and by simultaneously adding a pushing-in force from the rear side by the returning device 5 to the rear end part of the steel pipe 7 to be pulled in, the steel pipe is pulled in.

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