Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for staged construction of underpass
The invention discloses a staged construction method for an underpass, which comprises the following steps of: first-stage construction: pouring a sinking cushion layer and a force transmission belt in an area, which is 1m close to a separation pile, of a bottom plate; a waterproof layer is constructed and added on the sinking cushion layer; a water-swelling waterstop is arranged between the middle position of the bottom plate and the separation pile main reinforcement or the profile steel; the elevation of the top of the force transmission belt is kept flush with the elevation of the bottom of the structural bottom plate; the thickness of the force transmission belt is not less than 400mm; the length of the steel bars extending out of the pouring part in the bottom plate is not smaller than the steel bar lap joint length required by design, and the extending steel bars are staggered. The construction method has the beneficial effects that through the concrete retaining wall arranged above the first-stage top plate and connected with the top plate, only the first-stage top plate surrounded by the concrete retaining wall needs to be subjected to soil covering backfilling and road recovery, and the first-stage foundation trench does not need to be backfilled, so that a temporary blocking wall does not need to be arranged between the first-stage bottom plate and the top plate; and damage to a constructed road within a certain range of the first period due to removal of the separation piles in the later period is also avoided.
本发明公开了一种下穿通道分期施工的方法，包括一期施工，将下沉垫层和传力带浇筑在底板靠近分隔桩1m的区域内；在下沉垫层上施工添加防水层；在底板中部位置与分隔桩主筋或型钢之间设置遇水膨胀止水带；保持传力带顶部的标高与结构底板的底部标高相持平；传力带的厚度不小于400mm；底板中钢筋伸出浇筑部分的长度不小于设计要求的钢筋搭接长度，且伸出的钢筋相互错开。本发明的有益效果是，通过一期顶板上方设置的与顶板连接的混凝土挡墙，只要对混凝土挡墙包围内的一期顶板进行覆土回填和道路恢复即可，而无需对一期基槽进行回填，因此一期底板与顶板间无需设置临时封堵墙，也避免了后期分隔桩的去除对一期一定范围已施工道路的破坏。
Method for staged construction of underpass
The invention discloses a staged construction method for an underpass, which comprises the following steps of: first-stage construction: pouring a sinking cushion layer and a force transmission belt in an area, which is 1m close to a separation pile, of a bottom plate; a waterproof layer is constructed and added on the sinking cushion layer; a water-swelling waterstop is arranged between the middle position of the bottom plate and the separation pile main reinforcement or the profile steel; the elevation of the top of the force transmission belt is kept flush with the elevation of the bottom of the structural bottom plate; the thickness of the force transmission belt is not less than 400mm; the length of the steel bars extending out of the pouring part in the bottom plate is not smaller than the steel bar lap joint length required by design, and the extending steel bars are staggered. The construction method has the beneficial effects that through the concrete retaining wall arranged above the first-stage top plate and connected with the top plate, only the first-stage top plate surrounded by the concrete retaining wall needs to be subjected to soil covering backfilling and road recovery, and the first-stage foundation trench does not need to be backfilled, so that a temporary blocking wall does not need to be arranged between the first-stage bottom plate and the top plate; and damage to a constructed road within a certain range of the first period due to removal of the separation piles in the later period is also avoided.
本发明公开了一种下穿通道分期施工的方法，包括一期施工，将下沉垫层和传力带浇筑在底板靠近分隔桩1m的区域内；在下沉垫层上施工添加防水层；在底板中部位置与分隔桩主筋或型钢之间设置遇水膨胀止水带；保持传力带顶部的标高与结构底板的底部标高相持平；传力带的厚度不小于400mm；底板中钢筋伸出浇筑部分的长度不小于设计要求的钢筋搭接长度，且伸出的钢筋相互错开。本发明的有益效果是，通过一期顶板上方设置的与顶板连接的混凝土挡墙，只要对混凝土挡墙包围内的一期顶板进行覆土回填和道路恢复即可，而无需对一期基槽进行回填，因此一期底板与顶板间无需设置临时封堵墙，也避免了后期分隔桩的去除对一期一定范围已施工道路的破坏。
Method for staged construction of underpass
一种下穿通道分期施工的方法
ZHANG LI (Autor:in) / HUANG ZHENBO (Autor:in) / HAN ZHAO (Autor:in) / ZHANG MING (Autor:in) / ZHU ZHENGXING (Autor:in) / CHEN XIE (Autor:in) / PAN YUFANG (Autor:in)
19.08.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
UNDERPASS MONITORING SYSTEM, UNDERPASS MONITORING DEVICE, AND UNDERPASS MONITORING METHOD
| Europäisches Patentamt | 2016