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          固結灌漿之重力灌漿法——蓉維灌漿料為您講述

          2021-05-27 16:17發布

          固結灌漿之重力灌漿法——蓉維灌漿料為您講述

          重力灌漿法有時也叫導管灌漿法,常被用于可以自由吸漿的非常大的張開裂縫的場所。先把孔鉆進到全部深度,進漿管插入孔底,在接近重力的壓力下把漿液泵入。當壓力逐漸上升時,將進漿管緩慢提升,并持續不斷灌漿。反復所述流程,直至孔全部灌完為止。整個灌漿期內,灌漿管都要求保持淹沒在漿液內。


          欧美性奴残忍的牲交
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