JPS6216651U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing an example of an implementation site of the present invention, Fig. 2 is a partially cutaway schematic side view of the buried pipe connected to the leading pipe, and Fig. 3 is a front view of the buried pipe. FIG. 4 is a sectional view taken along the line -- in FIG. 3, and FIG. 5 is an enlarged partial view of the connected and combined buried pipes viewed from the inner circumferential surface. 1 is a vertical shaft, 3 is a press-in device, 4 is a leading pipe, 5 is a buried pipe, 5a is a corrugated short pipe, 5b is a channel, and 5c is a thin metal plate.

Claims (1)

[Scope of utility model registration request] A channel 5b is joined in the axial direction to the inner circumferential surface of a corrugated short pipe 5a which is horizontally press-fitted by a press-fitting device 3 and has an annular waveform in the axial direction and communicates with the lower part of the well 2. A buried pipe 5 having a thin metal plate 5c wrapped around and bonded to its outer peripheral surface; A steel leading pipe 4 connected to the front end of the buried pipe 5;
A structure of a horizontal lateral hole type underground room consisting of concrete 10 rolled up on the inner circumferential surface of the buried pipe 5 and the steel lead pipe 4.