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1. 发明专利

JPH11229791A SEGMENT AND WORKING HOLE BLOCKING STRUCTURE FOR SEGMENT 失效
公开(公告)号：JPH11229791A
公开(公告)日：1999-08-24
申请号：JP3519398
申请日：1998-02-17
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/00 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To improve the flow of circulating liquid by smoothing a portion of an inside hole in a segment. SOLUTION: The threaded portion 4a of a blocking member 4 is threaded into a threaded hole 3a in a tubular member 3, to block a grout hole (h) with a sealing ring 5. Then, a cover 7 is fitted in an inside hole 1b and the outer periphery 7b is adhered to the inner periphery of the inside hole 1b to fit a locking portion 7c to the rotating portion 4c of the blocking member 4. In such a state, the inner end face 7a of the cover 7 is flat with the inner face 1a of a segment 1. There is thus no roughness in an area in the inside hole 1b and turbulence and stay of circulating liquid such as water due to the roughness are prevented.

2. 发明专利

JPH11223095A HEXAGONAL SEGMENT 失效
公开(公告)号：JPH11223095A
公开(公告)日：1999-08-17
申请号：JP2762298
申请日：1998-02-09
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , NISHIMURA SHUICHI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To easily attach with a high strength a retrofitting plug to be fitting to a socket of other joint end face to a joint end face of a hexagonal segment. SOLUTION: A fitting projection 53 which is to be fitted to a fitting hole 44 formed to a joint end face 3 of a hexagonal segment is formed on the bottom portion of a plug main body of a retrofitting plug 51. A plurality of saw teeth sloped rearward in a fitting direction to the fitting hole 44 of the joint end face 31 are formed on the outer periphery of a fitting projection 53 in a peripheral direction of the fitting projection 53. In order to attach a retrofitting plug 51 to a joint end face 31, the fitting projection 53 is fitted to the fitting hole 44, and the saw teeth are linked to the inner peripheral face of the fitting hole 44.

3. 发明专利

JPH11223092A JOINTING FITTINGS FOR SEGMENT, SEGMENT, AND SEGMENT JOINTING STRUCTURE 失效
公开(公告)号：JPH11223092A
公开(公告)日：1999-08-17
申请号：JP2481098
申请日：1998-02-05
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To provide jointing fittings for segments, and segments, and segment jointing construction capable of building a tunnel or the like with a strength as planned by absorbing errors from segment itself or from the shape or assembly of jointing metal devices. SOLUTION: In the jointing construction of three segments Sa, the elastic members 5 attached to the interior wall surfaces 1b, 2b of the jointing metal devices 1, 2, 3 absorbs errors or the like in the shape or assembly of the segment Sa or jointing metal devices 1, 2, 3 and uniformly distribute tensile forces in right-left direction applied to the segment Sa into a wider area and transmit it to the counterpart. Thus, the tensile force does not concentrate in a local region and the segments are strongly jointed together.

4. 发明专利

JPH11221815A FORM FOR PRODUCING HEXAGONAL SEGMENT 失效
公开(公告)号：JPH11221815A
公开(公告)日：1999-08-17
申请号：JP2762198
申请日：1998-02-09
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , NISHIMURA SHUICHI , HASHIGUCHI AKIO
IPC分类号： E21D11/08 , B28B7/02 , B28B7/10
摘要： PROBLEM TO BE SOLVED: To provide a form for producing a hexagonal segment which can easily cope with the shape of bonding end faces to be formed. SOLUTION: A form is approximately constituted of a bottom plate for forming the inner peripheral face of a hexagonal segment, circular arc-like side plates provided on both side parts of the bottom plate and approximately V-shaped end plstes by plan view for connecting both ends of the side plates. A space part formed by the bottom plate, the side plates and the end plates is made as a space for feeding concrete. A liner 51 wherein the face of the concrete feeding space side is formed at the same angle as the bonding end faces of the hexagonal segment to be molded is removably fitted on the end plate member 43a constituting at least one side part side of the form. A fitting mechanism 53 wherein an insert nut 34 and forming members 57 and 58 are supported by a forming face 52 is provided on the liner 51.

5. 发明专利

JPH11210384A SEGMENT JOINING METAL FITTING, ITS FIXING METHOD, AND SEGMENT 失效
公开(公告)号：JPH11210384A
公开(公告)日：1999-08-03
申请号：JP1304598
申请日：1998-01-26
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To reduce the costs by facilitating the installation of a joining metal fitting to a segment. SOLUTION: A male joining metal fitting 1 having a head 1b at the outside extremity and a female joining metal fitting 11 having a fit part 11b to be fitted on the head 1b are attached to a concrete form, and wet concrete is poured into the form, and by solidification of the concrete, the metal fittings 1 and 11 are integrally fixed to a segment Sa. Fixing bars 5 and 15 attached to the embedding parts 1c and 11c of the metal fittings are embedded in the concrete to enlarge the fixing strength of the metal fittings.

6. 发明专利

JPH10339096A HEXAGON SEGMENT AND JOINTING STRUCTURE THEREFOR 失效
公开(公告)号：JPH10339096A
公开(公告)日：1998-12-22
申请号：JP15138297
申请日：1997-06-09
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： SHIRAISHI KOJI , ARAKAWA KENJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To simplify a structure for increasing jointing strength and improve workability. SOLUTION: One inclined jointing surface 1d of the second hexagon segment 1 is abutted to one inclined jointing surface 1c of the first hexagon segment 1, and the jointing member 5 of the second hexagon segment 1 is coupled to the coupling recess 7a of the first hexagon segment 1. Then, the saw-teeth 7b and 5a of the first hexagon segment 1 and the member 5 are engaged with each other, thereby jointing the first and the second segments 1 and 1 to each other. Also, the third hexagon segment 1 is kept so as to have a lateral jointing surface 1b abutted to the lateral jointing surface 1a of the first hexagon segment 1, and the coupling recess 8a of the jointing surface 1b is coupled to the jointing member 5 of the second hexagon segment 1. Then, the saw-teeth 5a and 8b of the member 5 and the recess 8 are engaged with each other. At the same time, one inclined jointing surface 1d is abutted to another inclined jointing surface 1c of the second hexagon segment 1. The third hexagon segment 1 is thereby jointed. According to this construction, a through-hole and a tapped hole are not needed, and a set bolt is eliminated.

7. 发明专利

JPH10339095A HEXAGON SEGMENT AND JOINTING STRUCTURE THEREFOR 失效
公开(公告)号：JPH10339095A
公开(公告)日：1998-12-22
申请号：JP15138197
申请日：1997-06-09
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： SHIRAISHI KOJI , ARAKAWA KENJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To simplify a structure for increasing jointing strength and improve workability. SOLUTION: One inclined jointing surface 1d of the second hexagon segment 1 is abutted to one inclined jointing surface 1c of the first hexagon segment 1, and the engagement head 6a of the jointing rod 6 of the second hexagon segment 1 is coupled to the coupling recess 7a of the first hexagon segment 1. The first and the second segments 1 and 1 are thereby jointed to each other. Also, the third hexagon segment 1 is kept so as to have a lateral jointing surface 1b abutted to the lateral jointing surface 1a of the first hexagon segment 1, and the engagement head 6a of the jointing rod 6 of the second segment 1 is coupled to the coupling recess 8a of the lateral jointing surface 1b. At the same time, one inclined jointing surface 1d is abutted to another inclined jointing surface 1c of the second hexagon segment 1. The third hexagon segment 1 is thereby jointed. As a result, a through-hole and a tapped hole are not needed, and a set bolt is eliminated.

8. 发明专利

JPH0932489A JOINED STRUCTURE OF SEGMENT 失效
公开(公告)号：JPH0932489A
公开(公告)日：1997-02-04
申请号：JP18309495
申请日：1995-07-19
申请人： ISHIKAWAJIMA KENZAI KOGYO KK , OKUMURA CORP
发明人： SOMEYA HIROKI , HASHIGUCHI AKIO , ARAKAWA KENJI , OKUNO SABURO
IPC分类号： E21D11/04
摘要： PROBLEM TO BE SOLVED: To reduce the labor for positioning work when joining segments mutually, to enhance positioning accuracy, and to facilitate automated assembly using a robot. SOLUTION: A plug 12 and a socket 13 into which the plug 12 fits are formed on the mating surface 2 of each segment. The plug 12 and the socket 13 are formed respectively by truncated-cone-shaped projecting and recessed parts. Of side faces constituting the plug 12 and the socket 13, one of the pair of side faces intersecting the cross direction of the segments is formed by gently inclined guide surfaces 12a, 13a.

9. 发明专利

JPH05116127A PRODUCTION OF HEXAGONAL CONCRETE SEGMENT OF TUNNEL CURVED PART BY FORM 失效
公开(公告)号：JPH05116127A
公开(公告)日：1993-05-14
申请号：JP28323791
申请日：1991-10-29
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , OKUNO SABURO , SOMEYA HIROKI , HASHIMOTO HIROHIDE
IPC分类号： B28B7/04 , E21D11/08
摘要： PURPOSE:To efficiently and economically produce a hexagonal concrete segment by constituting a form molding the hexagonal concrete segment constituting a tunnel curved part so as to arbitrarily correspond to the curvature of the tunnel curved part. CONSTITUTION:Concrete C is cast in a form 22 wherein a bent part 24 molding a tunnel curved part R from the symmetric line L2 extending along the peripheral direction of a tunnel is provided to a straight part 23 molding a tunnel straight part S from the symmetric line L2 at the arbitrary angle corresponding to the curvature of the tunnel curved part T with respect to the straight part 23.

10. 发明专利

JPH11229786A CONCRETE SEGMENT AND ITS MANUFACTURE AS WELL AS CONCRETE SEGMENT JOINT STRUCTURE 失效
公开(公告)号：JPH11229786A
公开(公告)日：1999-08-24
申请号：JP3519198
申请日：1998-02-17
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To prevent the defectives of segments near joint fittings. SOLUTION: Elastic members 6, 7, 8 absorb shock applied to joint fittings 1, 2, 3 for three segments Sa due to collision. Defectives due to shock at the segment angles near the joint fittings are thus reduced. When the joint faces Ka, Kb, Ga, Gb are abutted to one another to join the segments Sa, the elastic members prevent the severe collision of the joint faces with one another as a result of contact with the joint face of the other, this to reduce the defectives of the segments. The elastic members 6, 7, 8 are compressed among three segments Sa being joined to one another and made in liquid tightness in these areas to improve in water stop performance.

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