A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Double-L-shaped pushing replacement method for double-hole frame bridge for widening underpass railway of expressway
The invention discloses a double-L-shaped pushing replacement method for a double-hole frame bridge for widening an expressway and passing through a railway under the expressway. The method comprises the following steps: prefabricating a left reinforced concrete frame and a right reinforced concrete frame on mining working surfaces on two sides of an expressway road; the existing railway line is suspended, the right road is closed, and the left road is kept unobstructed; the right reinforced concrete frame is pushed to the right position of the expressway from the prefabricated position in the railway direction; the right reinforced concrete frame of the in-situ existing structure is cut and broken by a rope saw, and the right prefabricated reinforced concrete frame is jacked to the designed position below the railway from the direction of the highway to be in place; the traffic is guided and changed to the right part to keep the traffic and the left part to be closed; and the left reinforced concrete frame is in place, and the middle partition wall between the two reinforced concrete frames is filled and constructed. The frame bridge is divided into two parts, replacement without traffic interruption is achieved, the frame bridge is prefabricated on the outer side of the expressway, the construction time is saved, and the operation loss of traffic going up and down is reduced.
本发明公开了一种高速公路拓宽下穿铁路双孔框架桥双L型顶推替换方法，该方法包括以下步骤：在高速公路道路两侧开采工作面预制左、右两幅钢筋混凝土框架；架空既有铁路线路，封闭右幅公路，左幅公路保通；将右幅钢筋混凝土框架从预制位置沿铁路方向顶推至高速公路右幅位置；绳锯切割破拆原位既有结构右幅钢筋混凝土框架，将右幅预制钢筋混凝土框架从沿公路方向顶进至铁路下方的设计位置，就位；交通导改至右幅保通，左幅封闭；使左幅钢筋混凝土框架就位，填充施工两幅钢筋混凝土框架之间的中隔墙。本发明将框架桥一分为二，实现了不中断交通的替换，并通过高速公路外侧进行框架桥预制，节约了施工时间，减少了上下交通的运营损失。
Double-L-shaped pushing replacement method for double-hole frame bridge for widening underpass railway of expressway
The invention discloses a double-L-shaped pushing replacement method for a double-hole frame bridge for widening an expressway and passing through a railway under the expressway. The method comprises the following steps: prefabricating a left reinforced concrete frame and a right reinforced concrete frame on mining working surfaces on two sides of an expressway road; the existing railway line is suspended, the right road is closed, and the left road is kept unobstructed; the right reinforced concrete frame is pushed to the right position of the expressway from the prefabricated position in the railway direction; the right reinforced concrete frame of the in-situ existing structure is cut and broken by a rope saw, and the right prefabricated reinforced concrete frame is jacked to the designed position below the railway from the direction of the highway to be in place; the traffic is guided and changed to the right part to keep the traffic and the left part to be closed; and the left reinforced concrete frame is in place, and the middle partition wall between the two reinforced concrete frames is filled and constructed. The frame bridge is divided into two parts, replacement without traffic interruption is achieved, the frame bridge is prefabricated on the outer side of the expressway, the construction time is saved, and the operation loss of traffic going up and down is reduced.
本发明公开了一种高速公路拓宽下穿铁路双孔框架桥双L型顶推替换方法，该方法包括以下步骤：在高速公路道路两侧开采工作面预制左、右两幅钢筋混凝土框架；架空既有铁路线路，封闭右幅公路，左幅公路保通；将右幅钢筋混凝土框架从预制位置沿铁路方向顶推至高速公路右幅位置；绳锯切割破拆原位既有结构右幅钢筋混凝土框架，将右幅预制钢筋混凝土框架从沿公路方向顶进至铁路下方的设计位置，就位；交通导改至右幅保通，左幅封闭；使左幅钢筋混凝土框架就位，填充施工两幅钢筋混凝土框架之间的中隔墙。本发明将框架桥一分为二，实现了不中断交通的替换，并通过高速公路外侧进行框架桥预制，节约了施工时间，减少了上下交通的运营损失。
Double-L-shaped pushing replacement method for double-hole frame bridge for widening underpass railway of expressway
高速公路拓宽下穿铁路双孔框架桥双L型顶推替换方法
DUAN XINGE (author) / YANG QIANG (author) / ZHOU SENXIAN (author) / XIE XINKE (author) / WANG LEI (author) / GUO XIANG (author) / LIU FURONG (author)
2023-09-01
Patent
Electronic Resource
Chinese
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