Construction preparation → foundation treatment → releasing support position → support erection → support correction and adjustment → laying vertical and horizontal square timber → installing support → installing bottom formwork and side formwork → leveling flat-bottom formwork → preloading support → adjusting support and bottom formwork → binding reinforcement of bottom plate and side plate → installing corrugated pipe → installing internal formwork → installing end formwork → binding reinforcement of top plate → self-inspection → concrete pouring → concrete curing → dismantling side formwork and internal formwork.

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