In previous underpass constructions, web plate concrete would impose relatively high pressure onto the forms due to structure height and large cross - section dimension.

• 以往在箱通施工过程中,由于结构高度和截面尺寸较大的影响,腹板混凝土会对模板产生较大的侧压力,通常采用在模板上设置拉杆克服这部分压力。