| 摘要 |
PROBLEM TO BE SOLVED: To provide the connection structure of plane frames that can form a frame body for constructing a retaining wall of outstanding solidness by rapidly connecting a plurality of plane frames with high connecting strength. SOLUTION: One of the corresponding side parts 16 of a plurality of plane frames 10 allowed to abut on each other at the corresponding side parts is provided with a male type fitting part 18, and the other of the side parts 16 is provided with a female type fitting part 20 engaged with the male type fitting part 18 perpendicular to the fitting direction. Further, a first through hole 22 and a second through hole 32 providing an insertion hole continuously extending in the fitted state of the male type and female type fitting parts 16, 18 are formed in the male type fitting part 18 and the female type fitting part 20 respectively. The male type fitting part 18 and the female type fitting part 20 are fitted to each other, and an insertion member 36 extending across the first through hole 22 and the second through hole 32 is inserted in the insertion hole formed by fitting, to connect a plurality of plane frames 10.
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