| 摘要 |
The shuttering has a flexible envelope (2) anchored to the soil and covering multiple sealed flexible pockets (1) which are inflated with air. The pockets are superimposed in several layers retained by the envelope and by adjustable ties connected to the envelope and articulated around a central mast which is hollow sealed and fixed to the soil by its base and crossed at its top by the lines (5). Each of the layers can be formed of at least two flexible pockets inflated to a cylindrical shape placed in groups of five.
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