JPH0342900U

JPH0342900U -

Info

Publication number: JPH0342900U
Application number: JP10369489U
Authority: JP
Priority date: 1989-09-04
Filing date: 1989-09-04
Publication date: 1991-04-23
Anticipated expiration: 2004-09-04
Also published as: JPH077439Y2

Description

[Brief explanation of drawings]

第１図は本考案のセグメント締結構造の一実施
例を示す部分断面図、第２図は第１図のセグメン
ト締結構造を有するセグメントの断面図、第３図
はセグメント自動組立装置との関連を示す断面図
、第４図はセグメント自動組立装置の正面図、第
５図は本考案の他の実施例を示す断面図、第６図
は従来の一般的なセグメントの一例を示す正面図
、第７図は第６図の−矢視図、第８図は従来
考えられている長ボルトを用いたセグメントの断
面図である。１，１′……セグメント、２，２′……ボルト
箱穴、４……連結面、５……ボルト孔、６……長
ボルト、８……コンクリート端面肉厚部、１２…
…保持リング、１３……テーパ面、１５……没入
型ナツト受、１５′……ナツト受、１６……筒状
部、１７，１７′……ネジ部、１８……テーパ状
特殊ナツト、２０……ナツトランナー、２２……
締付ナツト、２３……支持パツド、２６……セグ
メント自動組立装置、２７……給気管、２８……
給気口、３９……延長ネジ部、４０……延長ネジ
付ナツト、Ｘ……自己回転防止機構を示す。 Fig. 1 is a partial sectional view showing an embodiment of the segment fastening structure of the present invention, Fig. 2 is a sectional view of a segment having the segment fastening structure of Fig. 1, and Fig. 3 shows the relationship with the segment automatic assembly device. 4 is a front view of the segment automatic assembly device, FIG. 5 is a sectional view showing another embodiment of the present invention, and FIG. 6 is a front view showing an example of a conventional general segment. FIG. 7 is a view taken along the - arrow in FIG. 6, and FIG. 8 is a cross-sectional view of a segment using a conventional long bolt. 1, 1'... Segment, 2, 2'... Bolt box hole, 4... Connection surface, 5... Bolt hole, 6... Long bolt, 8... Concrete end wall thick part, 12...
...Retaining ring, 13...Tapered surface, 15...Immersive nut holder, 15'...Nut holder, 16...Cylindrical part, 17, 17'...Threaded part, 18...Tapered special nut, 20 ...Natsuto Runner, 22...
Tightening nut, 23...Support pad, 26...Segment automatic assembly device, 27...Air supply pipe, 28...
Air supply port, 39...extension screw part, 40...nut with extension screw, X...self-rotation prevention mechanism.

Claims

[Claims for Utility Model Registration] 1. Bolt holes formed in the thick part of the concrete end face between the parallel connecting surfaces on both sides of the segment and the symmetrically arranged bolt box holes provided in the vicinity of the connecting surfaces on both sides. A special tapered nut is inserted into one side of the symmetrically arranged bolt box holes through the bolt hole, and a tapered special nut is screwed into the threaded part at one end of the bolt box hole and tightened to the threaded part at the other end. A long bolt into which a bolt can be screwed, a cylindrical part provided in the bolt hole on one side and through which the tapered special nut can pass through the opening of the bolt box hole of the bolt hole, and a concrete A recessed nut receiver having a taper angle matching the taper angle of the tapered special nut and constituting a self-rotation prevention mechanism in cooperation with the tapered special nut is provided in the inner deep part of the end face thick part. A segment fastening structure characterized by: 2 Bolt holes formed in the thick part of the concrete end face between the parallel connecting surfaces on both sides of the segment and the symmetrically arranged bolt box holes provided in the vicinity of the connecting surfaces on both sides, and the symmetrically arranged bolt holes A special tapered nut may be inserted into one side of a bolt box hole through the bolt hole, a tapered special nut may be screwed into the threaded portion at one end on the bolt box hole side, and an extension threaded nut may be screwed into the threaded portion at the other end. The long bolt is provided in each bolt hole of the symmetrically arranged bolt box hole, and the extended threaded portion of the tapered special nut and extension threaded nut passes through the bolt box hole opening of the bolt hole. A self-rotation prevention mechanism is formed in cooperation with the tapered special nut by having a cylindrical part that can be formed into a cylindrical part, and having a taper angle matching the taper angle of the tapered special nut at the inner depth of the thick part of the concrete end face. A segment fastening structure characterized by having an immersive nut holder.