Method and means for repairing existing manhole

E - Fixed Constructions – 02 – D

Patent

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E02D 29/12 (2006.01) B28B 1/16 (2006.01) B28B 7/28 (2006.01) E02D 37/00 (2006.01) E04G 11/20 (2006.01)

Patent

CA 2069757

A form assembly (12) for casting a lining wall in an ex- isting manhole (10) includes a cylindrical lower form assem- bly (28), a circular horizontal form assembly (32), arid a cylin- drical upper form assembly (30). All three assemblies (28, 32, 30) are formed of smaller segments (34, 52, 78) which are as- sembled together within the manhole (10) and which can be disassembled after the manhole (10) has been repaired.

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