Build method of construction of the septic tank protection for the concrete body and a septic tank protection for concrete body for dropping excavation

摘要

PROBLEM TO BE SOLVED: To provide a protection concrete body for a digestion tank, in which concrete bodies can be stacked without being misaligned, and a method for constructing the protection concrete body for the digestion tank.;SOLUTION: A protection concrete body for a digestion tank includes: a first member 1 made of concrete configured substantially in a square shape in a planar view, and having a first hole 7 and a first step part 8 formed in a bottom face 4A thereof; and a second member 1A made of concrete arranged below the first member 1, configured substantially in the same shape as the first member 1, and having a second hole 17 facing the first hole 1 and a second step part 18 to be engaged with the first step part 8 formed in a top surface 4 thereof.;COPYRIGHT: (C)2015,JPO&INPIT