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21. 发明专利

JP2002236196A SHIELDING STRUCTURE FOR RADIATION 失效
公开(公告)号：JP2002236196A
公开(公告)日：2002-08-23
申请号：JP2001031379
申请日：2001-02-07
申请人： OHBAYASHI CORP
发明人： KANAI MAKOTO , FUKUMOTO KATSUJI , KITAOKA TAKASHI , YAMAMOTO HIROAKI
IPC分类号： E21D11/04 , G21F1/08 , G21F3/00
摘要： PROBLEM TO BE SOLVED: To reduce a concrete thickness of a lining layer to restrain a crack while evading an increase of a construction cost. SOLUTION: Lining structure of a tunnel 10 is provided with a primary lining layer 12 arranged in an outer periphery of the tunnel 10, a secondary lining layer 14, and a radiation shielding layer 16. The radiation shielding layer 16 is arranged in an inner side of the secondary lining layer 12, is formed to cover all the face thereof, and is arranged to contact closely therewith to form multi-layered three-layer structure. The each layer comprises the substantially same constitution, which is constituted of a synthetic resin sheet, an adhesive layer, and powder of a shielding metal material held dispersedly in the adhesive layer.

22. 发明专利

JP2001311395A FIREPROOF CONSTRUCTION FOR SHIELD TUNNEL LINING 失效
公开(公告)号：JP2001311395A
公开(公告)日：2001-11-09
申请号：JP2000129511
申请日：2000-04-28
申请人： OHBAYASHI CORP , GEO RES INST
发明人： ADACHI NORINAO , SAKAYAMA YASUO , KANAI MAKOTO , KITAOKA TAKASHI , HASHIMOTO TADASHI
IPC分类号： E21D11/04 , E21D11/38
摘要： PROBLEM TO BE SOLVED: To construct the fireproof structure of a shield tunnel at a low cost in a short period. SOLUTION: This fireproof construction 10 is installed along the inner peripheries of cylindrically assembled segments 12 to cover them. The fireproof construction 10 is provided with fireproof panels 14 and a space 16 formed between the inner peripheries of the segments 12 and the outer peripheries of the fireproof panels 14 and concurrently serving as heat insulating and drain passages. Each fireproof panel 14 is formed with a fireproof and incombustible material such as a ceramic into a thin plate shape. An inorganic fiber material 18 such as rock wool is fixed on the back face side of each fireproof panel 14 over the whole face. The inorganic fiber material 18 is filled in the space 16 formed between the inner periphery of the segment 12 and the outer periphery of the fireproof panel 14 and concurrently serving as heat insulating and drain passages when the fireproof panel 14 is installed.

23. 发明专利

JP2001012186A CUTTER BIT 失效
公开(公告)号：JP2001012186A
公开(公告)日：2001-01-16
申请号：JP18428099
申请日：1999-06-29
申请人： OHBAYASHI CORP
发明人： KITAOKA TAKASHI
IPC分类号： E21B10/52 , E21D9/08 , E21D9/087
摘要： PROBLEM TO BE SOLVED: To make a base material and a cutting tip to be hardly damaged and to reduce the repairing/replacing work by providing a friction reducing material on the whole or part of the surface of the base material fitted to a cutter head. SOLUTION: Since a friction reducing material R is provided on the surface of the base material 11 of a T-bit 10, part of various frictional force or stress applied to the T-bit 10 at the time of excavation is properly released, and the whole frictional force or stress is not necessarily applied directly to the T-bit 10. The direct stress from the excavating work is not applied to the T-bit 10, and the friction from the ground caused by the pressing rotation of a cutter head is also sharply reduced by the friction reducing material R. The replacement cycle of the cutter bit 10 is improved, a long-distance excavation can be continuously conducted, and the cost and efficiency of the excavating work can be improved.

24. 发明专利

JP2000213289A JOINING STRUCTURE 失效
公开(公告)号：JP2000213289A
公开(公告)日：2000-08-02
申请号：JP1767799
申请日：1999-01-26
申请人： OHBAYASHI CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： TAKEDA KUNIO , KITAOKA TAKASHI , TSUJI TOSHINORI , SOMEYA HIROKI , ASANO HIROSUKE
IPC分类号： E21D11/04
摘要： PROBLEM TO BE SOLVED: To improve the resistance against the shearing force of a joined part composed by joining members with each other by engaging a joining bar with a joining piece without increasing the cost. SOLUTION: A joining piece 11 is provided on one segment S, and a joining bar 12 is provided on the other segment S. The joining piece 11 comprises a tapered sleeve 13, a plurality of wedges 14 arranged in an annular with inserting and fixing holes H of the joining bars 12, and fitted in the sleeve 13, and an elastic member 15 to urge the wedges 14 to the tip side of small diameter of the sleeve 13 so that the inserting and fixing holes H are shrunk. A female shear reinforcement member 21 having a fitting ring 24 with a fitting hole 30 therein is fixed to a tip part of the joining piece 11. A cylindrical male shear reinforcement member 27 is fitted to the joining bar 12. When the joining bar 12 is inserted in the joining piece 11, the male shear reinforcement member 27 is fitted to the fitting hole 30 in the fitting ring 24 of the female shear reinforcement member 21 to improve the resistance against the shearing force of a joined part.

25. 发明专利

JP2002047889A CUTTER REPLACING METHOD AND TUNNEL BORING MACHINE 失效
公开(公告)号：JP2002047889A
公开(公告)日：2002-02-15
申请号：JP2000236798
申请日：2000-08-04
申请人： MITSUBISHI HEAVY IND LTD , OHBAYASHI CORP
发明人： TANAKA JUNICHI , MURAKAMI MASARU , TAKEDA KUNIO , KITAOKA TAKASHI , NAKASUJI MASANORI , UEDA HISATERU
IPC分类号： E21D9/087 , E21D9/08 , E21D9/10
摘要： PROBLEM TO BE SOLVED: To easily replace a cutter in a short time in a cutter replacing method and a tunnel boring machine to reduce a burden on a worker and to improve safety while making a device compact, lightweight and simple. SOLUTION: An inner cylinder 41 is rotatably supported into a cutter spoke 32 of a cutter head 15, and replaceable cutter bits 38 are mounted in a forward projecting manner in the inner cylinder 41. When the cutter bit 38 wears out, the cutter bit 38 is accommodated in the inner cylinder 41 and reversed so as to face backward, then moved to the center part of the cutter head 15 and replaced with a new cutter bit.

26. 发明专利

JP2002021487A ANCHORING METHOD FOR SEGMENT JOINT PORTION 失效
公开(公告)号：JP2002021487A
公开(公告)日：2002-01-23
申请号：JP2000200482
申请日：2000-07-03
申请人： OHBAYASHI CORP
发明人： KANAI MAKOTO , FUKUMOTO KATSUJI , KITAOKA TAKASHI , TSUJI TOSHINORI
IPC分类号： E21D11/04
摘要： PROBLEM TO BE SOLVED: To give a lighter weight to a segment piece. SOLUTION: A plurality of segment pieces 10 are adjacently arranged along the tunnel excavating surface, and joint portions 12 are mutually jointed and assembled to a cylindrical shape. The piece 10 is made of a reinforced concrete in which the main reinforcement 14 arranged along the peripheral direction of the tunnel inside is embedded in the segment main body 16 consisting of a hardened concrete body and is formed from a cylinder to plural divided curved shapes along the peripheral direction. The joint portion 12 has both the ends of the main reinforcement 14 with both the ends of the main reinforcement 14 jointed together and is set in this state inside the form, and concrete is set in the form and the concrete is poured inside the form and the segment piece 10 is produced. By the adhesive bonding between concrete and the main reinforcement 14, the anchoring force at the joint portion 12 can be secured.

27. 发明专利

JP2001355393A TAIL SEAL STRUCTURE OF SHIELD MACHINE 失效
公开(公告)号：JP2001355393A
公开(公告)日：2001-12-26
申请号：JP2000177780
申请日：2000-06-14
申请人： OHBAYASHI CORP
发明人： KANAI MAKOTO , FUKUMOTO KATSUJI , KITAOKA TAKASHI
IPC分类号： E21D11/00
摘要： PROBLEM TO BE SOLVED: To remove the formation itself of a waterway. SOLUTION: In the seal tail structure, the first or third tail brushes 12, 14 and 16 are fixed on an inner circumferential surface on the rear end side of a skin plate 10 in a three step shape, and the tail brushes 12, 14 and 16 are slid and contacted while following to the outer circumferential surface of a segment 18. Sections among the tail brushes 12, 14 and 16 are filled with a high viscous material 20. The high viscous material 20 sticks a roughened- surface material 22 having surface roughness in the same extent as the segment 18 on the inner circumferential surface of the contacting skin plate 10.

28. 发明专利

JP2001248381A TRANSPORT EQUIPMENT FOR SOIL-CONTAINING FLUID 失效
公开(公告)号：JP2001248381A
公开(公告)日：2001-09-14
申请号：JP2000061457
申请日：2000-03-07
申请人： OHBAYASHI CORP
发明人： FUKUMOTO KATSUJI , SUZUKA TAKUO , KITAOKA TAKASHI
IPC分类号： E21D9/13 , E21D9/06 , E21D9/12
摘要： PROBLEM TO BE SOLVED: To avoid enlargement of the size of a sludge discharge pump. SOLUTION: In this transport equipment, a sludge discharge pipe 5 is opened to the air in the front flow side of a departure vertical shaft 7 and a soil separator 20 is installed in the opened part. The soil separator 20 is provided with a tank 22 having an opened top end and the closed bottom, a low head screen 24 installed in the tank 22 in the inclined state, a screen 25 provided in the top end of the tank 22, and a storage vessel 26 for the separation soil. The sludge discharge pipe 5 is divided in the front flow side of the vertical shaft 7, a division part in the sludge discharge pump 8 side is formed with a rotary valve 28, and the discharge port of the rotary valve 28 is opened to the screen 25. The division part of the sludge discharge pipe 5 in the vertical shaft 7 side is communicated with a pump 30 having a suction port in the bottom of the tank 22.

29. 发明专利

JP2001207799A SEGMENT FOR TUNNEL LINING 失效
公开(公告)号：JP2001207799A
公开(公告)日：2001-08-03
申请号：JP2000017351
申请日：2000-01-26
申请人： OHBAYASHI CORP
发明人： KITAOKA TAKASHI
IPC分类号： E21D11/14
摘要： PROBLEM TO BE SOLVED: To effectively use a space in a tunnel. SOLUTION: A segment piece has a skin plate 12, a peripheral direction coupler plate 14 and an axial direction coupler plate 16. The coupler plate 16 becomes a connecting part in the axial direction of the segment piece 10, a bolt nut is installed on each of the coupler plates 16, and a plural number of through holes 22 to connect the connecting parts to each other are driller on it. A plural number of hollow pipe type vertical ribs 24 are fastened between the coupler plates 16. Both end openings of the vertical ribs 24 are devised to pass through the coupler plates 16 arranged facing to each other and opens to the connecting part. The vertical ribs 24 are communicated to each other between the segment pieces 10 adjacent to each other in the axial direction. The hollow pipe type vertical ribs 24 extending along the tunnel axial direction by communication can be used as piping for drainage, are supply, discharge of drilling debris, mud transport, force feed of a backing material, etc.

30. 发明专利

JP2001207795A SEGMENT AND SEGMENT HOLDING DEVICE 失效
公开(公告)号：JP2001207795A
公开(公告)日：2001-08-03
申请号：JP2000017350
申请日：2000-01-26
申请人： OHBAYASHI CORP
发明人： KANAI MAKOTO , KITAOKA TAKASHI
IPC分类号： E21D11/08 , E21D11/40
摘要： PROBLEM TO BE SOLVED: To secure inner surface smoothness. SOLUTION: An insertion hole 34 of a circular cross-section both ends of which open to an opposed axial direction connecting parts 321 is formed on a segment piece 32 in such a way as to pass through it. The insertion hole 34 is extended along the tunnel axial direction. A segment holding device 12 is furnished with a holding head 36 and a holding rod 38 set on the holding head 36. The holding head 36 is supported on an erector device free to move along the tunnel axial direction. The holding rod 38 is constituted of a pair arranged in parallel and is provided so as to project outward from one side surface of the holding head 36. An interval between the holding rods 38 is the same as an interval of the insertion hole 34 provided on the segment piece 32, and a diameter of each of the holding rods 38 is large enough to fit and insert into the insertion hole 34 in a comparatively closed state. The segment piece 32 is held by the holding device 12 by fitting and inserting a pair of the holding rods 38 in each of the insertion holes 34 at the time of holding the segment piece 32 by the holding device 12.

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