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1. 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.

2. 发明专利

JPH11221814A FORM FOR PRODUCING HEXAGONAL SEGMENT 失效
公开(公告)号：JPH11221814A
公开(公告)日：1999-08-17
申请号：JP2762098
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 inexpensively produce a special hexagonal segment whose bonding end faces are formed in tapered shapes. SOLUTION: A form 30 is approximately constituted of a bottom plate block with a bottom plate 31 for forming the inner peripheral face of a hexagonal segment, circular arc-like side plates 33 provided on both side parts of the bottom plate block and approximately V-shaped end plstes 34 by plan view for connecting both ends of the side plates 33. A space part formed by the bottom plate, the side plates 33 and the end plates 34 is made as a space S for feeding concrete. A liner 41 wherein the face of the concrete feeding space S side is formed at the same angle of inclination as the inclined bonding end face of the hexagonal segment to be molded is removably fitted on the side plate 33 of at least one side part side of the form.

3. 发明专利

JPH1082292A SEGMENT 失效
公开(公告)号：JPH1082292A
公开(公告)日：1998-03-31
申请号：JP23826396
申请日：1996-09-09
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 protect an end face without breaking corner sections even by an impulse by conveyance, etc., by sticking steel plates onto both-side end faces at acute corner sections adjoined while holding a long side in the parallel two sides of an isosceles trapezoidal segment. SOLUTION: End faces 11, 12 along the parallel long and short sides of an isosceles trapezoidal segment 10 are curved in equal curvature, and forms a part of a cylinder. Corner sections 14, 14 adjoined while holding the end face 11 along the long side and formed by the end face 11 and end faces 13, 13 along equal sides are set at an acute angle. The corner sections 15, 15 of the end face 12 along the short side and the end faces 13, 13 are set at an obtuse angle. L-shaped steel plates 20 are stuck in conformity with the corners along the end faces 11, 13 on both sides while holding the corners at the corner sections 14 formed in the acute angle. The steel plates 20 protect the end faces as the mutual mating faces of the segments 10.

4. 发明专利

JPH1082290A RECTANGULAR CONCRETE SEGMENT AND JOINING STRUCTURE THEREOF 失效
公开(公告)号：JPH1082290A
公开(公告)日：1998-03-31
申请号：JP23826196
申请日：1996-09-09
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 reinforce a joining force against the pressure directed outward from the center of a tunnel. SOLUTION: Two rectangular concrete segments 1 are arranged to butt their mutual end joining faces 1c and 1d so that they may be connected to each other in the shape of a ring where one side joining face 1a of another rectangular concrete segment is arranged to butt the side joining faces 1b and 1c on one side of the two rectangular concrete segments 1 while a joining pin 3a provided on one steel-made plate 3 forming the side joining face 1a is fitted into a joining hole 4a provided on the other steel-made plate 4. The screw of a joining bolt inserted into an Insertion hole of one rectangular concrete segment 1 is screwed into the screwed hole of the joining bolt 6 inserted into the insertion hole of the other rectangular concrete segment 1 and integrally joined staggeringly.

5. 发明专利

JPH1082284A JOINING STRUCTURE OF SEGMENT 失效
公开(公告)号：JPH1082284A
公开(公告)日：1998-03-31
申请号：JP23706696
申请日：1996-09-06
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 obtain strong bonding power and high cutoff properties by forming a projecting section to the joint surface of one segment, forming a recessed section to the joint surface of the other segment and fitting both segments and mutually bonding the joint surfaces with adhesives. SOLUTION: A recessed section 1e is formed to the side-section joint surface 1a of a hexagonal segment 1 and a projecting section 1f to the other side-section joint surface 1b. A recessed section 1g and a projecting section 1h are formed to inclined joint surfaces 1c, 1d. The recessed section 1g of one hexagonal segment 1 and the projecting section 1h of the other hexagonal segment 1 are fitted mutually. The mutual side-section joint surfaces 1a, 1b and the mutual inclined Joint surfaces 1c, 1d are bonded and unified with adhesives, and clearances among the mutual joint surfaces are prevented and cutoff properties are improved.

6. 发明专利

JPH11210386A SEGMENT JOINING METAL FITTING, SEGMENT, AND METHOD FOR JOINING SEGMENTS 失效
公开(公告)号：JPH11210386A
公开(公告)日：1999-08-03
申请号：JP1304798
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 efficiently fill each gap between joining metal fittings with a caulking compound. SOLUTION: A projection 3c of a joining metal fitting 3 inserted into an insert hole 1c provided in the metal fitting at the time of joining hexagonal segments Sa breaks a capsule 5 and extrudes a caulking compound (c) to gaps (g) between joining metal fittings 1, 2, 3 from the hole 1c. The caulking compound (c) is extruded strongly by the projection 3c to the central part in the segment-thickness direction of the gap (g), so that the compound goes uniformly to the whole area of the gap (g) which is therewith choked certainly. The projection 3c inserted into the hole 1c strengthens the joining force of the mutual segments Sa.

7. 发明专利

JPH11210385A SEGMENT JOINING METAL FITTING, ITS MANUFACTURE, AND SEGMENT 失效
公开(公告)号：JPH11210385A
公开(公告)日：1999-08-03
申请号：JP1304698
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 manufacturing costs of a male type joining metal fitting for segments. SOLUTION: The end of one metal plate P is folded into a hexagonal cylindrical part Pa so that a primary product (m) whose outside shape is formed to coincide with the outside shape of the body part of a joining metal fitting to be manufactured, and mutual contact parts Pc and Pd of the metal plate P are joined together by welding, etc., and the cylindrical part Pa is filled with a reinforcement H. The reinforcement H prevents the cylindrical part Pa from being squashed by an external force and constitutes the head 1a of the metal fitting 1 together with the cylindrical part Pa.

8. 发明专利

JPH1082291A SEGMENT FOR TUNNEL WALL BODY 失效
公开(公告)号：JPH1082291A
公开(公告)日：1998-03-31
申请号：JP23826296
申请日：1996-09-09
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 manufacture a segment for a tunnel wall body easily by forms having a simple shape by producing the main body section and key section of the segment for the tunnel wall body by joining other trapizoidal segments, in which inclined planes are formed at the same angle. SOLUTION: A projecting-shaped segment 1 is linearly symmetrized in the circumferential direction of the tunnel wall body, and consists of a main body section 5 on one end side in the axial direction of a tunnel and a key section 7 on the other end side. The main body section 5 and the key section 7a are formed in a trapezoidal shape, and the inclined faces 21, 23 of both end faces in the circumferential direction are inclined mutually at the same angle. The engaging projecting section 17 of one segment 1 is engaged with the engaging stepped section 31 of the other segment 1, and a flat ring, in which there is no irregularity at end sections in the circumferential direction, is formed. Such segments 1 can be manufactured easily by forms having a simple shape by unifying the segments 1 by fixing the main body sections 5 and the key sections 7 consisting of separate segment by bolts.

9. 发明专利

JPH1080913A FORM FOR MANUFACTURING SEGMENT 失效
公开(公告)号：JPH1080913A
公开(公告)日：1998-03-31
申请号：JP23706896
申请日：1996-09-06
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： B28B7/10 , B28B7/18 , B28B23/22
摘要： PROBLEM TO BE SOLVED: To form a through hole for connecting without using a sheath tube. SOLUTION: Since stems 7, 8 are inserted at their ends into through holes 3a, 4a, 5a of side plate 3 or end plates 4, 5 and a cylinder 11 and threaded parts 7a, 8a of the base ends are engaged fixedly with a nut 10, a predetermined state is not collapsed in the case of placing concrete C in a concrete placing space K. After the concrete C is solidified, the parts 7a, 8a of the stems 7, 8 are loosened, the stems 7, 8 are externally drawn from a side plate 2, the side plates 2, 3 and end plates 4, 5 are separately moved, and obtained segment S is released. Through holes Se, Sf are formed in the concrete C by drawing the stems 7, 8.

10. 发明专利

JPH09273395A CONNECTING STRUCTURE OF HEXAGONAL SEGMENT 失效
公开(公告)号：JPH09273395A
公开(公告)日：1997-10-21
申请号：JP8178696
申请日：1996-04-03
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 mutual displacement of joint surfaces surely when shearing stress is applied to the joint surfaces in the direction of rotation by forming connecting projecting sections and connecting recessed sections extending along the longitudinal direction of the joint surfaces to the joint surfaces of hexagonal segments. SOLUTION: A connecting projecting section 11 extended along the edge of a joint surface 3a on one side section side in joint surfaces consisting of hypotenuses along the longitudinal direction of the joint surface is formed to the joint surface 3a. A connecting recessed section 12 having a shape capable of being fitted to the connecting projecting section 11 approximately without clearances is formed to a joint surface 3b on the other side section side adjacent to the joint surface 3a. Both joint surfaces 3a, 3b are joined by inserting long bolts into bolt inserting holes 15 and screwing the bolts into screw sections 17 under the state, in which the joint surfaces 3a, 3b of adjacent hexagonal segments 1 are abutted. The state, in which the connecting projecting sections 11 are fitted into the connecting recessed sections 12, is brought at that time, and stress working to the mutually joined joint surfaces is dispersed without being partially concentrated.

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