| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems in a conventional building foundation that, although insecticide is sprayed on earthen floor concrete when a new building is built, insecticide must be sprayed repeatedly every five years, further, this work is very troublesome, and its work environment is very bad. SOLUTION: Since an insecticide pouring groove 10 is provided along a join boundary part of a vertical wall part 3 of a continuous footing 4 and the earthen floor concrete 5, insecticide can be simply supplied on the earthen floor concrete 5 even after the building is built so as to increase the insecticide effect in the underfloor space of the building successively.
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