JPH0266897U

JPH0266897U -

Info

Publication number: JPH0266897U
Application number: JP14517988U
Authority: JP
Priority date: 1988-11-07
Filing date: 1988-11-07
Publication date: 1990-05-21

Description

[Brief explanation of drawings]

第１図ないし第４図は本考案の一実施例を示す
もので、第１図は筒状壁体の正面図、第２図は第
１図鎖線円部を拡大した断面図、第３図は筒状
壁体の軸方向に沿うコンクリートセグメントの断
面図、第４図は継手の一例を示す断面図、第５図
は本考案の他の実施例を示す断面図である。１，２，３……コンクリートセグメント、１ａ
，２ａ，３ａ……セグメント本体、１ｂ，２ｂ，
３ｂ……表面連接用段部、１ｃ，２ｃ，３ｃ……
裏面連接用段部、４……継手金具、５……止水用
パツキン材。 Figures 1 to 4 show an embodiment of the present invention, in which Figure 1 is a front view of a cylindrical wall body, Figure 2 is an enlarged cross-sectional view of the circular portion shown in dotted lines in Figure 1, and Figure 3 4 is a sectional view showing an example of a joint, and FIG. 5 is a sectional view showing another embodiment of the present invention. 1, 2, 3...Concrete segment, 1a
, 2a, 3a...segment body, 1b, 2b,
3b...Step part for surface connection, 1c, 2c, 3c...
Stepped portion for back side connection, 4...Joint fittings, 5...Water stop packing material.

Claims

[Scope of Claim for Utility Model Registration] (1) In a joint water stop structure of concrete segments that are interconnected through joints provided on the four joint surfaces of the arc plate-shaped segment body to form a cylindrical wall, A surface connection step is formed on one joint surface of the concrete segment, extending over the entire length of the joint surface in the longitudinal direction and protruding outward, and the joint surface of another concrete segment to be joined to this joint surface. A back connecting stepped portion is formed in which a portion corresponding to the connecting stepped portion can be fitted, and the upper and lower mating surfaces of these stepped portions are watertight over the entire length of the mating surface in the longitudinal direction. A water-stopping structure at the joints of concrete segments, characterized by the provision of waterproof sealing material. (2) A fitting groove is formed on one of the upper and lower mating surfaces of a pair of connecting steps that constitute the joint between the rings of the cylindrical wall, and a protrusion that fits into the fitting groove on the other side. 2. The mating surface of claim 1, wherein the fitting groove and the protrusion extend spirally along the longitudinal direction of the mating surfaces so as to be threadedly connected to each other. Water-stop structure at joints of concrete segments.