| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water conveyance pipeline capable of being installed with following the shape of the land of the piping position, and enabling efficient and quick execution of piping work for the whole length, and its installation method. <P>SOLUTION: The pipeline is provided with an outer wall which is formed in a concavo-convex shape made of hard synthetic resin material, and an inner wall 2 fused to the inner perimeter with soft synthetic resin material cylindrically. The mean thickness t of the inner wall 2 is same as or smaller than a mean thickness T of the top and bottom in the waveform of the outer wall and the middle part to connect the two. At a curve installation position C, the pipeline hardly expands at the curve large diameter side and greatly contracts at the curve small diameter side so that a tube H for installing the water convenience pipeline formed to generate a corrugated pattern 22 by deforming between the fused portion with the inner peripheral surface outer wall is laid underground along a roadside of a mountain district. In forming the pipe line, while an inside monitoring pit 4 to enable monitoring the situation in the pipe line and an inside cleaning adjustment pit 5 to enable cleaning the pipe line inside are disposed sequentially, the pipe line is laid underground in line from mountains as far as a predetermined water catchment place. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
