JPH025498U

JPH025498U -

Info

Publication number: JPH025498U
Application number: JP7882888U
Authority: JP
Priority date: 1988-06-16
Filing date: 1988-06-16
Publication date: 1990-01-16
Anticipated expiration: 2003-06-16
Also published as: JPH0634475Y2

Description

[Brief explanation of drawings]

第１図は本考案に係るスチールセグメントの斜
視図、第２図は覆工の一部を形成する複数のセグ
メントを展開して示す概略平面図、第３図は他の
例のスチールセグメントの斜視図、第４図は第３
図に示すセグメントに関する第２図と同様の概略
平面図である。１０，１０_１，１０_２，１０_３，１０_４および
４２，４２_１，４２_２：セグメント、１２，１４
：セグメントの一方および他方の軸線方向側部、
１２ａ，１２ｂ，１２ｃ：一方の軸線方向側部の
第１の側部分、第２の側部分および段部分、１６
，１８：セグメントの一方および他方の周方向側
部、２２：覆工、２８，４０：第１のリブ、３０
，４４：第２のリブ。 Fig. 1 is a perspective view of a steel segment according to the present invention, Fig. 2 is a schematic plan view showing a plurality of segments that form part of the lining developed, and Fig. 3 is a perspective view of a steel segment of another example. Figure 4 is the third
2 is a schematic plan view similar to FIG. 2 with respect to the segment shown; FIG. 10, 10 ₁ , 10 ₂ , 10 ₃ , 10 ₄ and 42, 42 ₁ , 42 ₂ : segment, 12, 14
: one and the other axial side of the segment,
12a, 12b, 12c: first side portion, second side portion and stepped portion of one axial side, 16
, 18: one and other circumferential side portions of the segment, 22: lining, 28, 40: first rib, 30
, 44: second rib.

Claims

[Claims for Utility Model Registration] (1) Used to provide a cylindrical lining to a tunnel, one axial side 12 in the axial direction of the cylinder is one circumferential side in the circumferential direction of the cylinder. A first side portion 12a and a second side portion 12b which are connected to the portion 16 and the other circumferential side portion 18 and are opposite to the other axial side portion 14, and a first side portion 12a and a second side portion 12b which are connected to both side portions and the one circumferential side portion. and a step portion 12c that faces the first side portion 12c in the circumferential direction.
a or one end portion fixed to the one circumferential side portion 16 in proximity to the first side portion, and the other end portion fixed to the step portion 12c or the second side portion 12b. A steel segment comprising ribs 28, 40, the spacing between the first side portion and the rib increasing gradually from the one circumferential side to the other circumferential side. (2) A second rib 30 is provided with the rib as a first rib, and the second rib has one end fixed to the one circumferential side 16 and the other axial side. 14, the pair of segments have one circumferential side 16 and the other circumferential side 18 in contact with each other, and the first side 12a of one segment and the other When the second side portions 12b of the segments are arranged adjacent to each other in the circumferential direction so as to be aligned in the circumferential direction, one end portion 30a of the second rib of the one segment The steel segment according to claim 1, wherein the steel segment is located near the intersection of the circumferential side and the other axial side. (3) A second rib 44 is further provided with the rib as a first rib, and the second rib has one end fixed to the one circumferential side 16 and the other circumferential side. 18 and the other end fixed proximate to the other axial side 14, the pair of segments have one circumferential side 16 and the other circumferential side 18 in contact with each other; When the first side portion 12a of one segment and the second side portion 12b of the other segment are arranged adjacent to each other in the circumferential direction so as to be aligned in the circumferential direction, the second side portion 12b of the one segment One end portion 44a of the rib is located near an intersection between the other circumferential side portion and the other axial side portion of the other segment.
Steel segment described in (1).