| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a foundation penetrating casing pipe capable of being easily fixed to a bar arrangement using a wire, a fixing holder and others with no need to scrape off a concrete subslab and a concrete slab on grade in order to ensure a space for installing the foundation penetrating casing pipe. <P>SOLUTION: A casing pipe S1, which is buried to penetrate a foundation B of a building including a longitudinal casing pipe part 1 and a transverse casing pipe part 2 capable of containing 90° elbow joint 3, has a structure with a rising surface, which rises obliquely upward from a downstream side to an upstream side, on the longitudinal casing pipe part 1. As a rising surface, which rises obliquely upward from a downstream side to an upstream side, is placed on the longitudinal casing pipe part 1, the casing pipe can be installed on a concrete subslab, which is placed under a concrete foundation (not illustrated), and a concrete slab on grade C, easily fixed to a bar arrangement using a wire, a fixing holder and others and it becomes unnecessary to scrape off the concrete subslab and the concrete slab on grade in order to ensure a space for installing the foundation penetrating casing pipe. <P>COPYRIGHT: (C)2013,JPO&INPIT |
