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1. 发明专利

JP2000038897A METHOD FOR PROPELLING PIPE AND PIPE PROPELLING MACHINE 失效
公开(公告)号：JP2000038897A
公开(公告)日：2000-02-08
申请号：JP20829898
申请日：1998-07-23
申请人： HITACHI CONSTRUCTION MACHINERY , NIPPON TELEGRAPH & TELEPHONE , AIREKKU GIKEN KK
发明人： SUZUKI KEIICHI , MORIYA HIDEKI , TANAKA MINORU , MIKI HIROYOSHI , SHIRAKAWA JUNICHI , HAGINO HIDEKI , FUKUSHIMA SHINICHI
IPC分类号： E21D9/06 , E21D9/093
摘要： PROBLEM TO BE SOLVED: To provide a technique for propelling a pipe which can make the sectional area of a starting shaft smaller relatively than that according to conventional techniques. SOLUTION: A pipe propelling machine is equipped with a fore end excavating- propelling machine having a fore end excavating part, a front hull 4 to which this fore end excavating part is so connected as to be rotatable by a direction modifying jack and a rear hull 5 to which the front hull 4 is so connected by pins 2b as to be rotatable freely. In this case, a watertight bulkhead 3 which can prevent penetration of underground water and earth and sand is provided in the rear of the front hull 4, while the rear hull 5 is manufactured separately from the front hull 4, and a plurality of coupling members 11a on one side of couplers 11 are fitted to the watertight bulkhead 3, while a plurality of coupling members 11b on the other side which are coupled with the coupling members 11a respectively are fitted to a bulkhead 13 for the rear hull. Thereby a combined body of the fore end excavating part and the front hull 4 is propelled and started in a preceding manner. Then, the rear hull 5 is provided in a starting shaft and fitted to the front hull 4 with hoses 6 in the front hull 4 and the rear hull 5 coupled by couplers 11, so that the fore end excavating-propelling machine being completed can be propelled.

2. 发明专利

JPH10131679A ROTARY EXCAVATOR FOR PIPE BURYING DEVICE 失效
公开(公告)号：JPH10131679A
公开(公告)日：1998-05-19
申请号：JP28690196
申请日：1996-10-29
申请人： HITACHI CONSTRUCTION MACHINERY , NIPPON TELEGRAPH & TELEPHONE , AIREC GIKEN KK
发明人： ARIMA KUNIHIKO , SUDA MASAO , MIKI HIROYOSHI , MATSUNAGA HIROSHI , MATSUMOTO FUMIHISA , KASAI KOJI
IPC分类号： E21D9/06 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To make effective use of roller bits even in the case of being used in the weak ground so as to obtain effective propulsion. SOLUTION: A rotary excavator for a pipe burying device is provided with a propulsion machine body, a rotary excavator and a viscosity imparting liquid filling means. The ground is excavated by the rotary excavator while propelling the propulsion machine body, and viscosity imparting liquid is filled in excavated sediment and agitated and mixed to produce mud with plastic fluidity. This mud is fed backward while being filled in a clearance between an excavated hole wall and the propulsion machine body. In this case, an excavator base part 8 is fitted to a seal case 11 rotatably fitted to the front part of the propulsion body, and a viscosity imparting liquid filling body 5 with an umbrella shaped bit 6 provided at a front end part so as to be able to fill viscosity imparting liquid radially is arranged at the rotational center part of the rotary excavator in such a way as to protrude forward from the excavator base part 8. Roller bit fitting arms 2 with outer peripheral roller bits 3 and inner peripheral roller bits 4 rotatably fitted thereto are arranged alternately in a circumferential direction around the viscosity imparting liquid filling body 5 and fitted protruding forward from the excavator base part 8.

3. 发明专利

JPH0430095A DIRECTION CORRECTING METHOD IN BURYING SMALL BORE PIPE AND SMALL BORE PIPE BURYING DEVICE 失效
公开(公告)号：JPH0430095A
公开(公告)日：1992-02-03
申请号：JP13434190
申请日：1990-05-24
申请人： NIPPON TELEGRAPH & TELEPHONE , AIRETSUKU GIKEN KK
发明人： MIKI HIROYOSHI , KUROSAWA TOMOHIRO , SATO SHUICHI , KASAI KOJI , MARUYAMA TAKASHI
IPC分类号： E21D9/093 , E21D9/06
摘要： PURPOSE:To propell highly accurately even in a soft ground of a poor holding force by carrying out the primary direction correcting by inclining the boring member of a leading body, and the secondary direction correcting by inclining the front part of the leading body forcibly. CONSTITUTION:By inclining a boring head 1 provided on top of a leading body 25 at a desired angle with a converting jack 5 and a driver 4, the primary direction correcting is carried out. And an inner tube 8 is combined integrally to the rear side of a cylinder 2 of the leading body 25, and an outer tube 12 is provided at the outer side placing a clearance. And the inner tube 8 is inclined to the outer tube 12 by jacks 9 to 11 and abutting projections provided on their tips, and the secondary direction correcting is carried out.

4. 发明专利

JP2000220381A PROPULSION DEVICE FOR BURYING PIPE 失效
公开(公告)号：JP2000220381A
公开(公告)日：2000-08-08
申请号：JP2408299
申请日：1999-02-01
申请人： KYOWA EXEO CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： NAKAMURA KOICHIRO , YOSHIKAWA YOSHIYASU , HINO HIDENORI , MIKI HIROYOSHI , GOTO KAZUHIKO
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To insert an electric cable into a buried pipe instead of a hydraulic hose, and to easily connect the buried pipe in a starting shaft by connecting an auxiliary unit pipe incorporating an electrohydraulic unit to a guidance body. SOLUTION: An auxiliary unit pipe 28 and a buried pipe 9 are successively connected to a guidance body 6 for forcing it into the ground by an original pressing device 5 in a starting shaft 1. In the auxiliary unit pipe 28, electric motors 29 and 30 with cooling fans 31 and 32, a small hydraulic pump 33, and a working fluid tank 34 are provided, and hydraulic presure is supplied to a jack 8 of the guidance body 6 for expanding and contracting a tip head 7. In the hydraulic oil tank 34, breathing space is provided at upper and lower parts for exchanging air in front and behind, and a cooling pipe 37 of the working fluid tank 34 is connected to an aggregate hose 91 for connecting it to an aggregate plant 90 on the ground, thus inserting an electric cable into the buried pipe 9 instead of a hydraulic hose 13 for supplying hydraulic pressure to the jack 8, and hence easily connecting the buried pipe 9 in the starting shaft 1.

5. 发明专利

JP2000160986A SHAFT MOUTH TEMPORARY WALL FOR NON-OPEN CUT PIPE JACKING 失效
公开(公告)号：JP2000160986A
公开(公告)日：2000-06-13
申请号：JP34216798
申请日：1998-12-01
申请人： NIPPON TELEGRAPH & TELEPHONE , NIPPON COMSYS CORP
发明人： GOTO KAZUHIKO , HINO HIDENORI , MIKI HIROYOSHI , SUEHIRO MASAO , SHIMURA TAKAYOSHI , NOJI HIROSHI , KATAOKA DAISUKE
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To finely crush a temporary wall with a shield machine and easily construct a starting/arrival shaft by arranging the temporary wall buried with glass beads in the surface to form a finely crushing layer on a shaft mouth. SOLUTION: A temporary wall 1 is formed with a finely crushing layer 1a made of resin mortar and buried with many glass beads 2 and a strength securing layer 1b with the required thickness and buried with no glass bead 2, the temporary wall 1 is fitted to the shaft mouth of a starting/arrival shaft, and a water stop device is fitted on the inside. When a shield machine is advanced from the inside of the shaft into contact with the temporary wall 1 through the water stop device, the temporary wall 1 is deflected and finely crushed by means of cracks generated from the glass beads 2, and no problem occurs on the excavation of the shield machine. In the case of an arrival shaft, the shield machine first crushes the temporary wall 1 and enters the shaft through the water stop device. Many grooves may be crossingly formed on the surface of the temporary wall 1 in place of the glass beads 2. The starting/ arrival shaft can be easily constructed.

6. 发明专利

JP2000145363A PIT MOUTH CUTOFF DEVICE FOR NON-CUT-COVER PIPE JACKING AND PIT MOUTH CUTOFF CONSTRUCTION METHOD USING THE SAME 失效
公开(公告)号：JP2000145363A
公开(公告)日：2000-05-26
申请号：JP32837498
申请日：1998-11-18
申请人： NIPPON TELEGRAPH & TELEPHONE , NIPPON COMSYS CORP
发明人： GOTO KAZUHIKO , HINO HIDENORI , MIKI HIROYOSHI , SUEHIRO MASAO , SHIMURA TAKAYOSHI , NOJI HIROSHI
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To provide a pit mouth cutoff device for non-cut-cover pipe jacking, in which no complicated excessive operation is required and which is installed by comparatively simple operation, does not occupy a space in a shaft and can be used in common with various shafts, and a pit mouth cutoff construction method employing the same. SOLUTION: The second opening end section 1b of a cutoff tube 1 is abutted and set to a temporary wall 29, and a head device 31 is pushed into the cutoff tube 1, and passed through cutoff sponge 2 and abutted against a side wall. The cutoff tube 1 is penetrated to the temporary wall 29 and pushed towards a ground 15 while a hole is formed into the ground as crushing the temporary wall 29 by the head device 31, and the whole cutoff tube 1 is pushed into the ground on the outside of a shaft. A flange 3 for mounting the cutoff tube 1 is set up fixedly to a pit mouth, and a duct sleeve is fitted to the flange 3 for mounting the cutoff tube 1.

7. 发明专利

JPH11117668A PILOT PIPE FOR SMALL-BORE PROPULSION AND AUTOMATIC EXTENSION DEVICE 失效
公开(公告)号：JPH11117668A
公开(公告)日：1999-04-27
申请号：JP27891197
申请日：1997-10-13
申请人： NIPPON TELEGRAPH & TELEPHONE , J COS CORP
发明人： MIKI HIROYOSHI , NISHIMOTO KAZUHIRO , HASEGAWA TSUTOMU
IPC分类号： E21D9/06 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To solve the problem with a conventional non-open cut method that pilot pipes for constructing a tunnel cannot be continuously propelled and collected because they are provided with threaded joints at their ends and propelled discontinuously as the terminal part of each of the pilot pipes fed one by one is connected to the next pilot pipe by screwing. SOLUTION: A plurality of pilot pipes 7 are connected together by flexible hinge structures 4, and the pilot pipe initially connected in series with a small- bore-propulsion pilot pipe having a slide cover 2 covering the hinge structure 4 during propulsion and supporting two pilot pipes to secure rigidity to make rectilinear propulsion possible within an earth layer is mounted on a slide table moved by a hydraulic jack, and the pipes are propelled. When the slide table extended returns to the starting position of propulsion, the following pilot pipe 7 is turned down, taken in, and automatically installed.

8. 发明专利

JP2000220380A DEVICE FOR SENDING IN AND ASSEMBLING JACKING PIPE 失效
公开(公告)号：JP2000220380A
公开(公告)日：2000-08-08
申请号：JP2408399
申请日：1999-02-01
申请人： KYOWA EXEO CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： NAKAMURA KOICHIRO , YOSHIKAWA YOSHIYASU , HINO HIDENORI , MIKI HIROYOSHI , GOTO KAZUHIKO
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To provide a device capable of easily and efficiently hanging down and automatically assembling a jacking pipe to be pressinserted into the ground by a jacking device installed in a starting shaft to carry out an efficient execution, which is connected by engaging the engaging protrusion with the engaging hole after a single unit of pipe has been longitudinally divided. SOLUTION: An opening face 27 from which divided bodies 19, 20 oppositely disposed with a distance before assembling can be taken in as they are, is formed at the underface of a lateral frame body 26. The frame body is provided with recessions 28 housing the outer peripheries of respective divided bodies 19, 20, and holding frames 29 which are mutually approachable toward the inside of the frame bodies 26. Grasping pins 41 detachably inserted into grasping holes formed in the divided bodies 19, 20 are provided in the holding frames 29.

9. 发明专利

JPH11117675A OBSTACLE AVOIDING TIP DEVICE OF SMALL-CALIBER PROPULSION MACHINE 失效
公开(公告)号：JPH11117675A
公开(公告)日：1999-04-27
申请号：JP27891097
申请日：1997-10-13
申请人： NIPPON TELEGRAPH & TELEPHONE , J COS CORP
发明人： MIKI HIROYOSHI , NISHIMOTO KAZUHIRO , HASEGAWA TSUTOMU
IPC分类号： E21D9/093 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To improve work efficiency and to enable high-accuracy non-open cut press-in advance without position detection and direction control by providing a tip adapter adapted to freely tilt to avoid an obstacle independently of a propulsion pipe in a tip device of a small-caliber propulsion machine for conducting non-open cut press-in advance under the ground. SOLUTION: In a tip device of a small-caliber propulsion machine for conducting a on-open cut press-in advance for natural ground, a male screw part of the tip of a propulsion pipe 14 is screw-engaged with a female screw part of the rear end of a pipe joint part 13 to be connected to each other. A tip fixed shaft 12 is integrally provided on the tip of the pipe joint part 13 through a flange part, a tip adapter 9 is provided on the tip thereof through a ball joint 10 in such a manner as to freely tilt, and a protective flexible material protecting a sediment from entering 11 is disposed in a gap between the tip adapter 9 and the tip fixed shaft 12f. Accordingly, when the tip adapter 9 touches an obstacle, immediately the tip adapter 9 inclined in the direction of a base line to hold down the shift amount to the minimum. At the time of rectilinear advance, earth pressure applied to the tip adapter 9 is equalized to keep rectilinear advancing performance.

10. 发明专利

JPH11117674A SMALL-CALIBER PROPULSION DEVICE AND METHOD FOR CURVE ADVANCE 失效
公开(公告)号：JPH11117674A
公开(公告)日：1999-04-27
申请号：JP27890997
申请日：1997-10-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MIKI HIROYOSHI , NISHIMOTO KAZUHIRO
IPC分类号： E21D9/06 , E21D9/093
摘要： PROBLEM TO BE SOLVED: To continuously execute works for a rectilinear advance section and a sharp curve section without an arrival shaft by providing the tip of a lot bar having a joint part turned at a designated angle with a taper head adapted to advance in a curve by utilizing earth pressure of advance, and disposing an outer cylindrical pipe advancing rectilinearly in the periphery of the lot bar. SOLUTION: The tip of a lot bar having a joint part 2 turned at a designate angle is provided with a taper head advancing in a curve, and an outer cylindrical pipe 3 advancing rectilinearly is disposed in the periphery of the lot bar 1. At the time of rectilinear advance, the outer cylindrical pipe 3 is advanced by a propulsion device, and when it reaches the curve advance position, the lot bar 1 is pushed out of the outer cylindrical pipe 3, the advancing direction is corrected by earth pressure applied to the taper head 4, and then the position of the taper head 4 is confirmed to push out the lot bar 1 in the direction of the curve advance arrival position. After the taper head 4 reaches the curve advance arrival position, a lead-in jig and lead-in pipe are connected to the tip of the lot bar 1, and the lot bar 1 is drawn in to bury the lead-in pipe.

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