| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce weight and to improve cutting processability, reliability to withstand load, transportability and also to suppress floating after burying inground, in a burying type hand hole which houses branched parts of cable and substation apparatuses. SOLUTION: A box type container 1 is divided into a bottom wall 2 and a side wall 4 raised vertically from the bottom wall 2. For the bottom wall 2, a pressure receiving portion 25 receiving a downward load by earth pressure is provided on the bottom wall 2 in one united body. The side wall 4 is formed by a plurality of sheets of plate shape bodies by jointing them to a polygonal cylinder shape. Individual plate-shaped body is equipped with a core material of a plate-shaped synthetic resin main body and a fiber-reinforced resin layer covering the core material. A stampable sheet melded body is used for the core material and a molded body using SMC or BMC used for the fiber- reinforced resin layer.</p> |
