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1. 发明专利

JPH02282598A MODIFIED CROSS SECTION SHIELD EXCAVATOR 失效
公开(公告)号：JPH02282598A
公开(公告)日：1990-11-20
申请号：JP10229889
申请日：1989-04-21
申请人： MINI PUBLIC WORKS , ISHIKAWAJIMA HARIMA HEAVY IND , KAJIMA CORP , SATO KOGYO , SHIMIZU CONSTRUCTION CO LTD , NIPPON STEEL CORP , NISHIMATSU CONSTR CO LTD , MITSUI CONSTR
发明人： ADACHI YOSHIO , MIZUTANI TOSHINORI , MASHITA HIDETO , UEHARA TOSHIAKI , NAKAO TSUTOMU , MORITA YOSHIHIRO , HONDA AKIHIRO , NAKAMURA MINORU , MASUDA SHUICHI , NAKAI SAKAE
IPC分类号： E21D9/087 , E21D9/08
摘要： PURPOSE:To perform efficient excavation along a modified cross section with a rotary cutter by making the center shaft of the rotary cutter slidable, and making protruded quantities of copy cutters adjustable. CONSTITUTION:A shield frame 6 is formed into the desired modified cross section other than a circle. Copy cutters 9 with adjustable protruded quantities are arranged at multiple positions on the outer periphery of the rotary cutter 10. A cutter sliding mechanism 12 slidably holding a center shaft 11 which rotatably supports the rotary cutter 10 and integrally has a cutter driving mechanism 29 in the perpendicular direction to the axial direction of the shield frame 6 is provided. The shaft change of the rotary cutter 10 and the protruded quantity changes of copy cutters 9 are combined, and excavation can be performed along the modified cross section of the shield frame 6.

2. 发明专利

JPH03151495A PARALLEL TYPE SHIELD MACHINE AND TUNNEL CONSTRUCTING METHOD USING IT 失效
公开(公告)号：JPH03151495A
公开(公告)日：1991-06-27
申请号：JP29028089
申请日：1989-11-08
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , KAJIMA CORP , SATO KOGYO , SHIMIZU CONSTRUCTION CO LTD , NIPPON STEEL CORP , NISHIMATSU CONSTR CO LTD , MITSUI CONSTR
发明人： SUZUKI TOSHIO , NAKAO TSUTOMU , KURAKI SHIYUUJI , HAGIWARA HIDEKI , NAKAMURA MINORU , WATANABE TORU , NAKAI SAKAE
IPC分类号： E21D9/06 , E21D9/08 , E21D9/087
摘要： PURPOSE:To excavate a single-track tunnel in continuity to a double-track tunnel by installing shield units of a parallel type shield machine in the left and right hollows of a frame having a hollow cocoon-form section in such a way as capable of individually excavating together with or separate from the frame. CONSTITUTION:A parallel type shield machine 1 is installed in a pit excavated by the open cut method, to make simultaneous excavation of a double-track tunnel, wherein the internal circumference of the tunnel at its tail is covered with soil. When this parallel type shield machine 1 reaches a branch point of tunnel, the left and right shield units 4, 4 are separated by a frame 2 and also separated from each other. Then, single-track tunnels are excavated individually by the shield units 4, 4, and covering work is made to the internal circumference of tunnel. The frame 2 is installed as reinforcement at tunnel branch. This permits simple execution of works for branch point and shortens the period of construction to a great extent.

3. 发明专利

JP2002054176A SEDIMENT CONVEYING AUXILIARY DEVICE 失效
公开(公告)号：JP2002054176A
公开(公告)日：2002-02-20
申请号：JP2000243255
申请日：2000-08-10
申请人： MITSUI CONSTR
发明人： ITO TATSUO , NAKAI SAKAE
IPC分类号： E02F7/00 , E02F7/10 , E21D9/12
摘要： PROBLEM TO BE SOLVED: To efficiently convey sediment by eliminating a long sediment plug so as to prevent clogging within a pipe. SOLUTION: A sediment conveying auxiliary device 15 is installed in such a manner as to be interposed between the way points of suction pipes 7A and 7B when the sediment 40 is drawn in for conveyance through the suction pipes 7A and 7B by vacuum suction. The device 15 is constituted by providing a sediment storage chamber 16a for accepting the sediment 40 from the side of the pipe 7A so as to be freely storing it temporarily, a sediment supplying chamber 16b and an auger device 17, fractionizing the sediment 40 stored temporarily in the storage chamber 16a, taking it out, and freely supplying to the side of the pipe 7B or the like.

4. 发明专利

JPH10245810A PIER 失效
公开(公告)号：JPH10245810A
公开(公告)日：1998-09-14
申请号：JP9831698
申请日：1998-03-26
申请人： MITSUI CONSTR , NIPPON KOKAN KK
发明人： NAKAI SAKAE , KURIHARA YASUO , ATOBE TOSHIRO
IPC分类号： E01D19/02
摘要： PROBLEM TO BE SOLVED: To provide a pier capable of reducing a construction period. SOLUTION: A pier is provided with a footing 5, a plurality of steel pipe bodies formed by connecting a plurality of steel pipes 6, 9 and 14 in series are erected to the footing 5 by arrangement corresponding to a plane form of the pier to be constructed, and concrete is placed to the circumference of each of the pipe bodies in a state to monolithically form each of them. The steel pipe bodies are utilized as structural members of the pier and, at the same time, even in the case the pier is constructed in a construction site difficult of access and wherein a large-sized vehicle can not be entered, execution can be so carried out that the steel pipes 6 and 9 are formed in the proper length capable of being conveyed even by an average vehicle are added to each other.

5. 发明专利

JPH102198A LINING DEVICE FOR TUNNEL 失效
公开(公告)号：JPH102198A
公开(公告)日：1998-01-06
申请号：JP17842796
申请日：1996-06-18
申请人： MITSUI CONSTR
发明人： NAKAI SAKAE , UOZUMI MASATAKA , NAGANO YUJI
IPC分类号： E21D11/10
摘要： PROBLEM TO BE SOLVED: To reduce the frictional abrasion of the rotating part against the lining material and prevent it from choking and improve the usability, in a lining device for tunnels projecting the lining material to an excavated wall face thereof. SOLUTION: A mixing means 2 mixing a lining material and an accelerating agent is provided with a vertical and cylindrical casing 5, a supply opening 9a for the lining material made on the upper part of the casing 5, a feeder 11 for the accelerating agent, an axial member 6 arranged at the central line of the casing, and a plurality of agitating members 7 radially projected from the axial member 6. The lower end opening 5c of the casing arranged between the inner ends of a plurality of blades 20 peripherally set in order forming the rotary projecting means 3 to shoot the lining material mixed with the accelerating agent and formed as the outlet of the mixing means, is opened downward toward the inner end of the blades with a specified distance from the inner end of the blades.

6. 发明专利

JPH09256790A LINING EQUIPMENT FOR SOIL RETAINING 失效
公开(公告)号：JPH09256790A
公开(公告)日：1997-09-30
申请号：JP9060796
申请日：1996-03-19
申请人： MITSUI CONSTR
发明人： NAKAI SAKAE , UOZUMI MASATAKA , NAGANO YUJI
IPC分类号： E21D11/10
摘要： PROBLEM TO BE SOLVED: To reduce wear due to friction with a soil retaining material at the high speed rotating portion for injecting the soil retaining material. SOLUTION: This lining equipment has a mixing means 2 for mixing an accelerating agent to a cement-based soil retaining material in a fluid state and a rotating injection means 3 for injecting the soil retaining material mixed with the accelerating agent into the wall surface excavated through the mixing means 2. For supplying the soil retaining material to the rotating injection means 3 through the mixing means, and a plurality of vanes 17 are arranged in peripheral direction of the rotating injection means 3 extended from the mixing means 2 around the central portion of a cylindrical portion and a discharge hole 27 is opened and formed toward the inner end of the vanes.

7. 发明专利

JPH09125864A SHAFT INNER WALL LINING DEVICE 失效
公开(公告)号：JPH09125864A
公开(公告)日：1997-05-13
申请号：JP30675695
申请日：1995-10-31
申请人： TOKYO ELECTRIC POWER CO , MITSUI CONSTR
发明人： YANO YASUAKI , KOMIYAMA SHIGEKI , UGATA YASUO , NAKAI SAKAE , UOZUMI MASATAKA , ITO TATSUO
IPC分类号： E21D5/00 , E21D5/12
摘要： PROBLEM TO BE SOLVED: To construct a uniformly thick earth retaining lining layer on an excavated inner wall of a shaft smoothly and accurately and efficiently as well. SOLUTION: A shaft inner wall lining device is designed to line an excavated inner wall of a shaft which is substantially over-shaped in a cross section, with a cement-based earth retaining material. A material supply means 4 and a vertically-shaped drop pipe 3 are provided on the lower part of a material tank 2 which houses an earth retaining material hangingly supported in the shaft so that it may rise. A rotary shaft 21 provided with a plurality of agitation members 6 at the center line position of the drop pipe 3 where the agitation members 6 are projected in the radial direction so as to mix the earth retaining material with a set accelerating agent jetted from a nozzle 5. The lower end of this rotary shaft is connected to the central part of an impeller 7 which ejects the earth retaining material at the excavated inner wall of the shaft with a centrifugal force. The rotary shaft is turned, interlocking with the impeller 7. In addition to that, a vibrator 19 is laid out on a rubber board 18 provided to block a hole 17 bored in the side wall of the material tank.

8. 发明专利

JPH09125863A SHAFT INNER WALL LINING METHOD AND DEVICE THEREOF 失效
公开(公告)号：JPH09125863A
公开(公告)日：1997-05-13
申请号：JP30675595
申请日：1995-10-31
申请人： TOKYO ELECTRIC POWER CO , MITSUI CONSTR
发明人： YANO YASUAKI , KOMIYAMA SHIGEKI , UGATA YASUO , NAKAI SAKAE , UOZUMI MASATAKA , ITO TATSUO
IPC分类号： E21D5/00 , E21D5/12
摘要： PROBLEM TO BE SOLVED: To make it possible to prevent the occurrence of blockade trouble by inhibiting a curing reaction by a set accelerating agent until an earth retaining material is jetted and form a strong lining layer on the wall surface by hardening an earth retaining material quickly. SOLUTION: This invention relates to a shaft inner wall lining method and device where the excavated inner wall of the shaft, which is substantially over- shaped in a cross section, is lined with a cement-based earth retaining material. A set accelerating agent is continuously jetted at the earth retaining material which is in a flowing state being supplied continuously by a screw rotor 4 from a material tank from a nozzle 5. Then, both are roughly mixed with a paddle 6, thereby producing a mixed state wherein the set accelerating agent is diffused into and mixed with the earth retaining material. Then, this mixed material is centrifugally ejected at the excavated inner wall of the shaft with an impeller 7, thereby diffusing the set accelerating agent into the earth retaining material on the wall surface and hardening the earth retaining material.

9. 发明专利

JPH09125380A REINFORCEMENT INSTALLATION DEVICE 失效
公开(公告)号：JPH09125380A
公开(公告)日：1997-05-13
申请号：JP30669195
申请日：1995-10-31
申请人： TOKYO ELECTRIC POWER CO , MITSUI CONSTR
发明人： YANO YASUAKI , SHIMIZU FUKUO , KOMIYAMA SHIGEKI , NAKAI SAKAE , UOZUMI MASATAKA , NAGANO YUJI
IPC分类号： E02D5/34
摘要： PROBLEM TO BE SOLVED: To smoothly connect reinforcements to each other. SOLUTION: A reinforcement installation device is provided with a frame 6, a bottom gauge disc 7 and a top gauge disc 52 in the frame, these gauge discs 7, 52 are vertically arranged opposed to each other in such a state as forming an interval M1 between them, and a plurality of main reinforcement arrangement parts are so provided around the gage discs 7, 52 that the main reinforcements 37a can be vertically guided respectively. A bottom frame 9 is provided in the bottom of the frame 6 so as to vertically move, a main reinforcement end holding part 31 is so provided in the bottom frame 9 as to be matched to the main reinforcement arrangement part, and an elevating device 54 is so provided in the frame 6 that the bottom frame 9 is vertically moved, driven, and freely positioned.

10. 发明专利

JPH07197770A TUNNEL CONSTRUCTION METHOD AND SHIELD DEVICE USED THEREFOR 失效
公开(公告)号：JPH07197770A
公开(公告)日：1995-08-01
申请号：JP34965793
申请日：1993-12-29
申请人： MITSUI CONSTR
发明人： NAKAI SAKAE
IPC分类号： E21D9/00
摘要： PURPOSE:To construct a tunnel of large and flat cross section with high workability and economically. CONSTITUTION:Pilot tunnels 3b and 3b are drilled in advance and side wall concretes 33 and 33 are placed therein. A shield device 5 having a front end 6a sloping in such state as set back from the top end of a hull 6 to right and left lower sections is installed and supported on the concretes 33 and 33 via support shoes 10 and 10 formed on right and left lower sections. Then, the shield device 5 is placed in front of a tunnel face 2a in such state as placed in each pilot tunnel 3b. Thereafter, the tunnel face 2a is excavated, while a foot 7 being projected to support a tunnel wall, with the device 5 inclined at an angle alpha approximately equal to the angle of the repose of the natural ground 2. Then, an upper half annular segment ring 15 is erected in tunnel space 3 in such sate as following the device 5 and laid on the concretes 33 and 33, thereby constructing a lining body 30.

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