| 摘要 |
<p>PURPOSE:To facilitate connection forming a horizontal containing part to contain the front part of a pipe terminal part approximately in a horizontal state and an introduction space part with an inclining bottom, and increasing the width of the horizontal containing part to a value higher than the outside diameter of a connection part to connect the pipe terminal part. CONSTITUTION:The terminal part 31 of a sheath pipe laid on a floor foundation is inserted through an introduction port 2 in a casing body A, the tip of the terminal is brought into contact with a tip part 31 of a horizontal containing part 3, and anchor parts 5... are fixed to reinforcing bars to place concrete. During a through-piping work, a plate 1 is cut out, a sheath pipe terminal part is taken out from the casing body A, and an auxiliary sheath pipe is connected through a sleeve. A width W of a containing part 3 is increased to a value higher than the inside diameter of a sheath pipe connection part B to contain the connection part B in the containing part 3. When it can not be contained in the containing part, the connection part is supported to the upper opening of the containing part 3 to eliminate operation of a generating reaction force. This constitution facilitates connection without damaging breathability of the sheath pipe.</p> |
