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41. 发明专利

JPH102183A SLURRY-CIRCULATION METHOD AND DEVICE IN CHAMBER OF SLURRY SHIELDING MACHINE 失效
公开(公告)号：JPH102183A
公开(公告)日：1998-01-06
申请号：JP15668496
申请日：1996-06-18
申请人： KAJIMA CORP
发明人： MASAKA TAKENORI , SASAKI YUKINOBU
IPC分类号： E21D9/13 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To prevent excavated soil from settling in the slurry chamber in a slurry shielding machine. SOLUTION: A slurry suction opening and a slurry discharge opening are formed in the chamber 6 of a slurry shielding machine and connected to each other through a pipe 16. And a pump 17 is installed on the way of the pipe 16. The pump 17 is driven to circulate the slurry in the chamber 6 in order to prevent settling of the soil.

42. 发明专利

JPH06229188A METHOD AND DEVICE FOR WASHING PLACE OF JUNCTION IN METHOD OF CONSTRUCTION OF DIRECT SUBSURFACE JUNCTION SHIELDING 失效
公开(公告)号：JPH06229188A
公开(公告)日：1994-08-16
申请号：JP1907693
申请日：1993-02-05
申请人： KAWASAKI HEAVY IND LTD , KAJIMA CORP
发明人： MATSUZAKI TORU , KAIHATSU KIYOHIDE , SASAKI YUKINOBU , YOSHIMURA MUNEO
IPC分类号： E21D9/06
摘要： PURPOSE:To improve the cut-off function of the junction section of two shielding excavators. CONSTITUTION:A nozzle 11 for washing is installed to the outer ring 12 of a cutter disk at the front end of a shielding excavator. An outermost circumferential cutter 12a at the front end of the outer ring 12 of the cutter disk can be retractable in the radial direction. A cutter disk on the opposite side is retreated into a skin plate 30 under the state, in which the outermost circumferential cutter 12a is retracted. The cutter disk is fitted into a recess formed by retreating. High pressure water is ejected from the nozzle 11 for washing at that time, and the front end of the skin plate 30 is washed. Soil and sand, etc., are removed when the front end of the skin plate 30 is joined with the front end of the skin plate of the shielding excavator on the opposite side, thus acquiring an excellent cut-off function.

43. 发明专利

JPH04297694A ANGLE DETECTION METHOD IN TIME OF UNDERGROUND CONNECTION OF SHIELD MACHINES 失效
公开(公告)号：JPH04297694A
公开(公告)日：1992-10-21
申请号：JP6327891
申请日：1991-03-27
申请人： KAJIMA CORP
发明人： TSUCHIHIRO MICHIO , YAMAMOTO TAKASHI , TAKANO TAKASHI , SASAKI YUKINOBU , SASAKURA TAKESHI
IPC分类号： E21D9/06 , G01B15/00
摘要： PURPOSE:To detect a relative angle of both shield machines by emitting a plurality of radiant rays from a boring pipe provided to one shield machine, and measuring the peak height of intensity of them and intervals by the other shield machine. CONSTITUTION:A radiation source body 2 is so inserted that the front end of a boring pipe C of one shield machine is brought into contact with a bulk head 1 of the other shield machine B. After that, a scintillation counter is provided to the inside of the bulk haead 1 of the shield machine B to connect an indicator to a personal computer, etc. Then, when the axis of the boring pipe C coincides with the direction of excavation of the shield machine B, gamma-ray peaks P1, P2 and P3 are displayed on the screen 6 of a display, and when the boring pipe C is inclined against the shield machine B, the peaks and intervals are changed. The intensity of radiation and the intervals are detected in advance, an angle theta is detected therefrom, and attitudes of the shield machines are controlled to properly joint both shield machines.

44. 发明专利

JPH04209298A 失效
公开(公告)号：JPH04209298A
公开(公告)日：1992-07-30
申请号：JP40019090
申请日：1990-12-03
申请人： KAJIMA CORP
发明人： ONODA KAZUYA , SASAKI YUKINOBU , YOSHIMURA MUNEO
IPC分类号： E21D11/40
摘要： PURPOSE:To improve a supporting condition, by forming a holding metal block provided in a segment and a supporting part with the holding body supporting the metal block to be a spherical seat. CONSTITUTION:A straight slit 26 is provided at the top of a cup-shaped holding metal block 20 buried in a segment (S) and a spherical face is formed on the inner face 25b. Next, a friction pad 3 with the same form as the inner face of the segment (S) and freely reciprocal and rotatable jack 4 are provided in the bracket 2 of a holder 1. Next, a holding pin 10 shaped as a spherical face at the shoulder 14 of a flat plate 12 is provided and connected to the jack 4 to cover the outer cylinder 5. And when holding the segment (S), after the flat plate 12 of the pin 10 is inserted in the slit 26 and turned 90 deg. The jack 4 is tightened to fit respective spherical faces and to press the segment (S) on the pad 3 to support them. In this way, even when the held matter is inserted slantwise, it can be automatically self-aligned and also the device is made compact.

45. 发明专利

JPH04140400A SHIELD EXCAVATOR 失效
公开(公告)号：JPH04140400A
公开(公告)日：1992-05-14
申请号：JP25897490
申请日：1990-09-28
申请人： KAJIMA CORP
发明人： SASAKI YUKINOBU , YOSHIMURA MUNEO
IPC分类号： E21D9/06 , E21D11/10
摘要： PURPOSE:To promote execution efficiency by providing an inner plate as an outside form of a cast-in-place lining concrete to the inside of a tail plate of a shield excavator capable of lining with segment to that it is capable of removing. CONSTITUTION:In lining of a straight line section, an inner plate 2 is mounted to the inside of a tail plate 1, an internal form 5 is assembled to the inside of the plate 2, concrete 6 is placed between the plate 2 and form 5, driving reaction force of an excavator is utilized to pressure and dewater the concrete 6, and a gable form 7 is used for a reaction force receiver of a driving jack 4 to excavate. After that, when the plate 2 reaches a branch point of a steep curved line section, the plate 2 is separated, 1 - 2 ring portions of branch segments 8 are assembled to the inside of the plate 2, the segments 8 is used for a reaction force receiver to advance, and then, a normal segment 9 is assembled to the inside of the plate 1 to excavate.

46. 发明专利

JP2003232194A METHOD FOR REMOVING CLOGGING MATTER IN SEDIMENT CONVEYOR 审中-公开
公开(公告)号：JP2003232194A
公开(公告)日：2003-08-22
申请号：JP2002029214
申请日：2002-02-06
申请人： KAJIMA CORP
发明人： SASAKI YUKINOBU , SHIMIZU YOSHIO , SUGIYAMA YUICHI , ISOBE TAKAHISA
IPC分类号： E21D9/12
摘要： PROBLEM TO BE SOLVED: To easily and surely remove clogging matter such as gravel, which clogs the inside of a casing, by means of a relatively simple device, in a screw conveyor of a mud pressure shield and the like. SOLUTION: A water jet device 20 is mounted in a confirmation hole 13 which is provided in the casing 10 of the screw conveyor 7 of the mud pressure shield; an ultrasonic wave-bearing water jet is emitted into the casing 10 from a nozzle 21 of the device 20; the gravel A is located by a distance, measured with the ultrasonic wave, and an angle of the water jet; the nozzle 21 is replaced with a nozzle for very high pressure; and the gravel A is crushed for removal by the very high pressure water jet. COPYRIGHT: (C)2003,JPO

47. 发明专利

JP2000054791A SHIELD MACHINE 失效
公开(公告)号：JP2000054791A
公开(公告)日：2000-02-22
申请号：JP22567398
申请日：1998-08-10
申请人： KAJIMA CORP
发明人： SASAKI YUKINOBU , KAWAMATA KIYOSHI , IWATA NORIHIKO
IPC分类号： E21D9/087 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To prevent the contact of a skin plate and a ground in the case of following excavation and facilitate the direction change of an excavator by forming a triangular recess part in plan view on the skin plate rearward of the side cutter of the excavator. SOLUTION: A shield excavator 10 has a main cutter 1 in the center, sub- cutters 2, 2 on both the sides, and side cutters 3, 4 on the corner part, and excavation is performed adjacent to a tunnel excavated by a preceding excavator, which excavates part of a filler such as mortar formed for earth retaining and water sealing. In the shield excavator 10, recess parts 5, 6 in plan view are formed on the sideward part of skin plates 3A, 4A rearward of the side cutters 3, 4. Thereby the shield excavator 10 can easily turn without bringing the skin plates 3A, 4A into contact with the filler. Preceding excavation can be performed in the state of the absence of the recess parts 5, 6 by detachably mounting a cover member on the recess parts 5, 6.

48. 发明专利

JPH06180095A MEASURING METHOD OF TAIL CLEARANCE AND DEVICE THEREOF 失效
公开(公告)号：JPH06180095A
公开(公告)日：1994-06-28
申请号：JP33416692
申请日：1992-12-15
申请人： KAJIMA CORP
发明人： KIKUCHI TETSUKI , MIYAJIMA TOSHIKAZU , SASAKI YUKINOBU , HIGUCHI YASUO , SHIBATA MANABU , IMAGAWA TSUTOMU , BITOU MASAAKI
IPC分类号： E21D9/06 , E21D11/40
摘要： PURPOSE:To make a tail clearance measuring device measurable in parallel with segment assemblage and facilitate the setup. CONSTITUTION:Each of range sensors 10 is attached to plural specified spots fixed to the inner part of a skin plate 2 in a specified sense on a plane crossed with an axis of this skin plate 2. A distance of up to the inner surface of a segment 5 in the specified sense on the plane is measured by the range sensors 10, while a point on the inner surface of the segment 5 is set up from the specified position and direction and the measured distance, and further an inner circumferential circle of the segment 5 is found out. A distance between an inner surface of the skin plate 2 and an outer surface of the segment 5 is measured from the inner circumferential circle of the skin plate 2, the inner circumferential circle of the sought segment 5 dependening on the specified position, and thickness (t) of the segment 5.

49. 发明专利

JPH06117189A REPLACEMENT OF CUTTER BIT OF SHIELD EXCAVATOR 失效
公开(公告)号：JPH06117189A
公开(公告)日：1994-04-26
申请号：JP27280392
申请日：1992-10-12
申请人： KAJIMA CORP
发明人： SASAKI YUKINOBU , KOBAYASHI HITOSHI , SHIRAISHI MINORU
IPC分类号： E21D9/087 , E21D9/08
摘要： PURPOSE:To increase safety of replacing bits and simplify it, by providing a freely rotatable valve at the fitting position of a cutter bit of a cutter spoke and closing the bit insertion hole with the valve after the cutter bit is drawn out by a jack. CONSTITUTION:A freely rotatable valve 14 is equipped at the fitting position of a cutter bit 11 of a cutter spoke 10 in a cutter disk of a shield excavator. A jack 15 is equipped to pull out the bit 11. After bolts 12 are removed, the bit 11 is drawn by the actuation of jack 15 and the valve 14 is rotated to close the insertion hole of the bit 11. The bit 11 is replaced for its renewal. After another bit is inserted by the jack 15, it is fastened by bolts 12 and then the jack 15 is removed. In this way, the bit can be safely and efficiently replaced.

50. 发明专利

JPH0658079A POSITION MEASURING METHOD FOR PROXIMITY SHIELD 失效
公开(公告)号：JPH0658079A
公开(公告)日：1994-03-01
申请号：JP21182792
申请日：1992-08-07
申请人： KAJIMA CORP
发明人： SASAKI YUKINOBU , KIKUCHI TETSUKI , YOSHIMURA MUNEO , MIYAJIMA TOSHIKAZU
IPC分类号： E21D9/06
摘要： PURPOSE:To carry out precise measurement on the real time basis by setting a magnetic sensor from the measuring position so as to confront a proximity shield cutter disc to which a plurality of bar magnets are attached, and sensing the disc rotating angle of a bar magnet tube and the sensor output. CONSTITUTION:A boring pipe 4 is protruded from the measuring position 1, and a magnetic sensor fixed at the tip is set confronting a cutter disc 11 of a proximity shield 10. Linear magnet members 12, 13 are installed alongside a V-shape opening symmetrically outward in the radial direction of an apex angle 2alpha where the apex lies at the point F at a spacing D from the rotational center 0 of the disc 11. The disc 11 is rotated, and the proximity outputs of the magnets 12, 13 are sensed by the magnetic sensor to serve for calculating the rotating angle of the disc 11. The coordinates for the magnetic sensor are calculated on the basis of this rotating angle obtained, spacing D, and the apex angle 2alpha. The distance L2 from the disc 11 is measured from the size of the output of the magnetic sensor, and the distance L from the position 1 is determined. Thereby the positon of the proximity shield 10 can be measured with high precision and sensitivity on the real time basis.

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