JPS63156291U

JPS63156291U -

Info

Publication number: JPS63156291U
Application number: JP4768087U
Authority: JP
Priority date: 1987-04-01
Filing date: 1987-04-01
Publication date: 1988-10-13

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す継手部断面
図であり、第１図ａは推進時の継手部断面図、第
１図ｂは推進完了時の継手部断面図である。第２
図は第１図における継ぎ輪を示す構造図であり、
第２図ａは側面縦断図、第２図ｂは現場充填材の
注入口を示す断面図である。第３図ａ、及び第３
図ｂは他の実施例を示す管径方向の継手部断面図
、第４図は従来の推進用鋼管を示す構造図であり
、第４図ａは側面縦断図、第４図ｂは正面断面図
を示している。第５図は第４図における継手部断
面図であり、第５図ａは継ぎ輪式の継手部断面図
、第５図ｂはセグメント式の継手部断面図を示し
ている。第６図は推進工事を示す説明図である。図において、１ａは鋼管、２０，２１は推進用
鋼管、２２は被覆管、２４は溶接裏当材、２５は
充填材、２６は補強リング、２８は継ぎ輪、３２
は現場充填材である。なお、各図中同一符号は同
一または相当部分を示す。 FIG. 1 is a sectional view of a joint showing an embodiment of this invention, FIG. 1a is a sectional view of the joint during propulsion, and FIG. 1b is a sectional view of the joint when propulsion is complete. Second
The figure is a structural diagram showing the joint ring in Figure 1,
FIG. 2a is a side longitudinal sectional view, and FIG. 2b is a sectional view showing an inlet for in-situ filling material. Figure 3 a and 3
Figure b is a sectional view of the joint in the pipe radial direction showing another embodiment, Figure 4 is a structural diagram showing a conventional propulsion steel pipe, Figure 4a is a side longitudinal sectional view, and Figure 4b is a front sectional view. The figure shows. 5 is a cross-sectional view of the joint in FIG. 4, FIG. 5a is a cross-sectional view of the joint of the ring type, and FIG. 5b is a cross-sectional view of the joint of the segment type. FIG. 6 is an explanatory diagram showing the promotion work. In the figure, 1a is a steel pipe, 20 and 21 are propulsion steel pipes, 22 is a cladding pipe, 24 is a welded backing material, 25 is a filler material, 26 is a reinforcing ring, 28 is a joint ring, and 32
is the in-situ filling material. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of Claim for Utility Model Registration] (1) In the joint of a propulsion steel pipe, which is formed by filling the gap between a double pipe formed by a steel pipe and a cladding pipe with a filler material, installation on-site on the outer periphery of the steel pipe joint The welded backing material is welded, the reinforcing ring is attached to the outer periphery near both ends of the steel pipe, the cladding pipe is provided with a portion of the reinforcing ring protruding, and the protruding portion of the reinforcing ring is welded on-site. 1. A propulsion steel pipe assembly comprising: a joint ring divided into a plurality of parts to be attached; and an on-site filler filled into a gap formed by the joint ring and the steel pipe. (2) The propulsion steel pipe assembly according to claim 1, wherein the welded backing material is a flat bar welded across both adjacent steel pipes. (3) The propulsion steel pipe assembly according to claims 1 and 2, wherein the reinforcing ring is made of angle iron that is welded in advance to the steel pipe and the cladding pipe. (4) The propulsion steel pipe assembly according to claims 1 to 3 of the claims registered as a utility model, wherein the joint ring is divided into two parts, each of which is provided with an injection port for in-situ filler. . (5) The propulsion steel pipe according to claims 1 to 3 of claims 1 to 3, wherein the joint ring is divided into three parts, and the top piece of the joint ring is attached after being filled with an in-situ filler. assembly. (6) The steel pipe for propulsion according to claims 1 to 3 of the claims registered as a utility model, characterized in that the joint ring is divided into four parts, and the top piece of the joint ring is attached after being filled with an in-situ filler. assembly.