Prefabricated building block for assembling well wall

(10) WO 2013/078732 A1
(22) 14.12.2011
(43) 06.06.2013
(71) JIANG, Yun) [CN/CN]; Jiangsu 213300 (CN)
(57) A prefabricated building block for assembling a well wall, the prefabricated building block is a circular-arc-shaped building block (1); the circular-arc-shaped building block (1) comprises coaxial circular-arc-shaped inner and outer cylinder walls (2, 3), and further comprises a reinforced connection rib (4) disposed between the circular-arc-shaped inner cylinder wall (2) and the circular-arc-shaped outer cylinder wall (3) for connecting the same; the left and right sides of the reinforced...

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