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1. 发明专利

JPH10169370A BENDED PIPE THRUSTER 失效
公开(公告)号：JPH10169370A
公开(公告)日：1998-06-23
申请号：JP33215196
申请日：1996-12-12
申请人： AIREC GIKEN KK , HITACHI CONSTRUCTION MACHINERY
发明人： KASAI KOJI , MORIYA HIDEKI , ARIMA KUNIHIKO
IPC分类号： E21D9/06 , E21D9/08 , E21D9/087 , E21D9/093
摘要： PROBLEM TO BE SOLVED: To make possible to carry out curve construction smoothly even in a hard bedrock and to prevent a large mass of excavated earth from getting caught in a roller bits. SOLUTION: The bended pipe thruster is equipped with a leading body having a cutter head 4 on which many roller bits 5 are mounted in the circumferential direction through a roller bit mounting holder 5a, thrusts pipes while excavating a bedrock with the cutter head 4, and buries them, produces a plastic and liquid mixture by injecting additives into excavated earth from an additive inlet 8b, and fill the mixture into clearances between the leading body or a pipe and an excavated hole. In such a case, a bit mounting member 11 is mounted on the cutter head 4 and arranged so that they may protrude between neighboring roller bits 5 to ensure that a bedrock facing the foremost point P of the areas to which the roller bit 5 is mounted of the roller bit mounting holder 5a on the outermost circumference may be excavated with hole wall excavation bits 10, and the hole wall cutting bits 10 are mounted also on the roller bit mounting section 4b and the outer cylinder section 4c.

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

JPH1046986A LINEAR MONITORING DEVICE FOR REAR VIEW IN PIPE PROPULSION METHOD 失效
公开(公告)号：JPH1046986A
公开(公告)日：1998-02-17
申请号：JP20486296
申请日：1996-08-02
申请人： DAIKO KENSETSU KK , AIREC GIKEN KK , HITACHI CONSTRUCTION MACHINERY
发明人： MIYAHARA MASAHIRO , KASAI KOJI , MORO TAKASHI
IPC分类号： E21D9/093 , E21D9/06 , H04N7/18
摘要： PROBLEM TO BE SOLVED: To prevent meandering of following pipes without requiring a high degree of skill. SOLUTION: A pipe propulsion method concerned includes a linear monitoring device for rear view which monitors the folded/bent condition of following pipes relative to one another, wherein the monitoring device is constituted of a camera 10 to photograph the ends of following pipes 7 and 2 positioned on the side with a leading element 1, a lighting apparatus to irradiate the ends of the following pipes 7 and 2, and a monitor board which displays the photographing results and allows the operator to monitor the following pipes. According to the displayed results, the operator can know the folded/bent condition of the following pipes.

4. 发明专利

JPH09235987A SUPPORT DEVICE OF SOIL-DISCHARGE PIPE IN SMALL DIAMETER PIPE AND EMBEDDING DEVICE OF SMALL DIAMETER PIPE 失效
公开(公告)号：JPH09235987A
公开(公告)日：1997-09-09
申请号：JP4584996
申请日：1996-03-04
申请人： AIREC GIKEN KK , HITACHI CONSTRUCTION MACHINERY
发明人： KASAI KOJI , ARIMA KUNIHIKO , OUCHI MINORU
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To provide a support device for a soil-discharge pipe, which can be recovered even in a curved execution case and which is not required to exchange the constituting members even if the diameter of a Hume pipe laid varies. SOLUTION: Arms 24 are rotatably fixed through pins 26 to projections 27 provided at a plurality of positions in the pipeaxial direction of the peripheral side face of a soil-discharge pipe 11. And guide rollers 23 traveling while contacting the inside face of a Hume pipe 5 are provided at the nearby position of the front end. One end of a coil spring 25 is fixed to a position near the root of the arm 24 and the other end thereof is fixed to a projection 28 separately provided at a shifted position from the projection 27, in the axial direction of the pipe. This coil spring 25 urges the arm 24 to radially rotate from the axial center of the soil-discharge pipe 11. Accordingly, when a larger external force than a specified one acts on the guide roller 23, the arm 24 rotates against the spring 25 force and hence, the radial dimensions of the arm and the guide roller can be expanded or contracted.

5. 发明专利

JPH10212898A PIPE JACKING MACHINE 失效
公开(公告)号：JPH10212898A
公开(公告)日：1998-08-11
申请号：JP1659397
申请日：1997-01-30
申请人： AIREC GIKEN KK , HITACHI CONSTRUCTION MACHINERY
发明人： KASAI KOJI , ENDO NOBUAKI , MORO TAKASHI , MORIYA HIDEKI
IPC分类号： E21D9/093 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To provide a pipe jacking machine capable of preventing damage by external force worked at the time of the propulsion of a succeeding pipe of a direction-changing jack. SOLUTION: The pipe jacking machine has a plurality of mutually inclinable connected drum sections, a cutter head for excavating a bedrock and three direction-changing jacks capable of connecting and tilting the drum sections on the front end sides to the drum sections at rear sections, and the direction changing jacks are composed of leaders, to which relief means relieving pressure oil in the cylinders of the direction-changing jacks are installed, and base-push jacks propelling a succeeding pipe. Shrinkage-limit set values for determining the shrinkage limits of the direction-changing jacks are set at that time, and a controller 3 energizing a solenoid 6 and stopping the propulsion of the succeeding pipe by the base-push jack when at least one of the three direction-changing jacks is decided so as to be shrunk until at least one of the jacks reaches the shrinkage-limit set value while energizing the solenoid 6 and stopping the propulsion of the succeeding pipe even when at least one of the jacks is decided to be shrunk or extended under the state, in which at least one of the jacks is not operated, is mounted.

6. 发明专利

JPH10196282A MIDDLE BENT TYPE PIPE PROPULSION MACHINE 失效
公开(公告)号：JPH10196282A
公开(公告)日：1998-07-28
申请号：JP465697
申请日：1997-01-14
申请人： AIREC GIKEN KK , HITACHI CONSTRUCTION MACHINERY
发明人： KASAI KOJI , MORIYA HIDEKI , ARIMA KUNIHIKO , MORO TAKASHI
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To perform curve construction accurately and positively without requiring high skill compared to a conventional method. SOLUTION: This bent type pipe propulsion machine is provided with a front drum having a cutter head, an intermediate drum 2 connected in such a way that the front drum can be tilted by a direction correcting jack, and a rear drum 3 connected in such a way that the intermediate drum 2 can be freely tilted through a middle bent part 6. The bent part 6 is composed of a flange 2a of the intermediate drum 2 with a fixture 8, and a flange 3a of the rear drum 3 with an oblong hole 3b. The maximum bent angle of the bent part 6 is set by the length of the oblong hole 3b. In this case, an internal thread cylinder 12 and a cylindrical member 13 are respectively fixed to the inner periphery of the flange 3a and the inner periphery of the rear end part of the intermediate drum 2 so as to be opposed to each other. An external thread part 11a of a middle bend limiting bar metal fitting 11 is screwed to the internal thread cylinder 12 to insert a shank 11b into the cylindrical member 13, and a clearance between a head 11c and the end face of the cylindrical member 13 is adjusted. The maximum bent angle of the bent part 6 can therefore by made smaller than the angle set by the length of the oblong hole 3b.

7. 发明专利

JPH10196281A PIPE PROPULSION CONSTRUCTION METHOD AND PIPE PROPULSION MACHINE 失效
公开(公告)号：JPH10196281A
公开(公告)日：1998-07-28
申请号：JP391397
申请日：1997-01-13
申请人： AIREC GIKEN KK , HITACHI CONSTRUCTION MACHINERY
发明人： KASAI KOJI , ADACHI TORU , ENDO NOBUAKI , MORO TAKASHI
IPC分类号： E21D9/06 , E21D9/13
摘要： PROBLEM TO BE SOLVED: To provide pipe propulsion technique for injecting mud forming material so as to be able to economically produce mud of excellent plastic fluidity without depending on intuition and experience of an operator. SOLUTION: A succeeding pipe is connected to the rear of a guide body, and while driving it forward an excavated hole is excavated by a cutter head to bury the succeeding pipe in the ground. In this process, mud forming material is injected in excavated sediment to produce mud with plastic fluidity, and this mud is filled in an annular gap between the guide body and the excavated hole and taken in from a sediment intake of the guide body so as to be force-fed to the ground. In a pipe propulsion machine of such constitution, the guide body is provided with a front side earth pressure gauge 1 and a rear side earth pressure gauge 2 respectively measuring mud pressure on the tunnel face side and sand intake side of mud passing the annular gap. The pipe propulsion machine is provided with a controller 3 having a judging part 4 for computing the difference between both mud pressure measured by the earth pressure gauges 1, 2 and inputted and comparing the computed result value with the preset threshold value, and a command part 5 for controlling a mud forming material injection device 6 so that the former value approaches the latter value on the basis of the compared result, thus adjusting the injection quantity of the mud forming material.

8. 发明专利

JPH10131671A POSITIONAL ESTIMATION METHOD OF TUNNEL EXCAVATOR 失效
公开(公告)号：JPH10131671A
公开(公告)日：1998-05-19
申请号：JP29054296
申请日：1996-10-31
申请人： NIPPON TELEGRAPH & TELEPHONE , AIREC GIKEN KK
发明人： SATO MASAHIKO , MANABE TETSUYA , MATSUMOTO MICHITO , KAWABATA KAZUYOSHI , KASAI KOJI
IPC分类号： E21D9/093 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To improve precision of estimation by predicting a horizontal position while estimating an unknown parameter for each directional control operation in accordance with a specified model to find the horizontal position. SOLUTION: A positional changing angle per one stroke is found by linear- connecting a change of a positional angle for each motion found from a setting angle of a pilot head and an actual changing angle at the time of estimating the horizontal position of a tunnel propulsive machine main body 11. Thereafter, a positional angle of the main body after an optional stoke is found by accumulating this value and a positional angle initial value, a change of a distance from a standard line for each finish of motion by specified factors of length of each part of the main body 11, etc., and linear-connected, and a change distance from the standard line of a broken part of the main body 11 after the next one stroke is found. Thereafter, the horizontal position is computed from a distance from the standard line of the broken part found from accumulation of this changed distance and the initial value the positional angle of the main body 11, the pilot head angle, and length of each part of the main body 11. Consequently, it is possible to improve precision and to improve workability.

9. 发明专利

JPH09310580A ESTIMATING METHOD OF HORIZONTAL POSITION OF TUNNEL ROBOT 失效
公开(公告)号：JPH09310580A
公开(公告)日：1997-12-02
申请号：JP12882396
申请日：1996-05-23
申请人： NIPPON TELEGRAPH & TELEPHONE , AIREC GIKEN KK
发明人： SATO MASAHIKO , SHIMONAKA MASARU , MORIMITSU TAKENORI , KAWABATA KAZUYOSHI , KASAI KOJI
IPC分类号： E21D9/093 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To improve the estimated accuracy of the horizontal position of a robot body by jointly using measurement by an electromagnetic method and prediction by a folding angle in a tunnel robot device pressing in and burying a communication-cable housing pipe, etc., in the ground. SOLUTION: A robot body consists of a head 111 capable of correcting a horizontal azimuth and being used for removing soil and sand, a first propulsion cylinder 112, an intermediate folding mechanism 114 and a second propulsion cylinder 113, and a transmission coil for measuring a horizontal position and a folding angle sensor are installed to the robot body. The state parameter of a linear model predicting the horizontal position of the robot body by accumulating folding-angle data is updated by adapting a Kalman filter by the horizontal position measured by an electromagnetic method while folding-angle data are input to the linear model and the horizontal position is predicted. The folding-angle data are input every time a buried pipe is pressed in in one stroke, and the state parameter is updated every time one buried pipe is buried completely. Accordingly, the horizontal position can be estimated with high accuracy on an on-line, and a head angle can be corrected and operated in a burying process.

10. 发明专利

JPH06323851A METHOD AND EQUIPMENT FOR MEASURING DEPTH OF TUNNEL AND BUBBLE REMOVING METHOD THEREFOR 失效
公开(公告)号：JPH06323851A
公开(公告)日：1994-11-25
申请号：JP11499693
申请日：1993-05-17
申请人： NIPPON TELEGRAPH & TELEPHONE , AIREC GIKEN KK
发明人： KAWABATA KAZUYOSHI , KUROSAWA TOMOHIRO , KASAI KOJI
IPC分类号： E21D9/06 , G01C5/04 , G01C15/00 , G01L7/18
摘要： PURPOSE:To allow highly accurate measurement by disposing a reference pressure sensor in the vicinity of tunnel inlet within a pit thereby eliminating the influence of fluctuation in the specific gravity of a low viscosity working liquid caused by temperature difference. CONSTITUTION:A head pressure sensor 5 advancing through a tunnel 3 is coupled with an oil tank 7 through a hose 6. A low viscosity working liquid, e.g. silicon oil 8, contained in a tank 7 is filled in the hose 6 and the pressure, at the tip thereof, is detected by means of the sensor 5. At the same time, a reference pressure sensor 9 disposed on the bottom of a pit measures the oil pressure of the hose 6 at the inlet of tunnel 3 thus determining the difference DELTAP between the reference pressure Pa and the pressure Pb at the tip of hose. The depth of the sensor 5 can be determined according to a formula; DELTAP=¦Pb-Pa¦=rho.g(¦Ha-Hb¦) (rho: specific gravity of oil, g: gravitational acceleration). Consequently, the depth of the sensor 5, and thereby the depth of a leading body 4a, can be measured continuously as an excavator advances. Since the hose 6 and the oil 8 are set under the ground between the sensors 9, 5, the temperature scarcely changes and thereby the specific gravity rho scarcely fluctuates.

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