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A platform for research: civil engineering, architecture and urbanism
Cable hoisting construction method for large-span suspension bridge
The invention discloses a cable hoisting construction method for a large-span suspension bridge, which comprises the following steps: in order to ensure the hole forming precision of a prestressed rock anchor, firstly pouring an anchor wall, then carrying out the construction of the prestressed rock anchor, firstly setting out the position of the anchor wall according to the central position of the rock anchor which is measured and set out, and then carrying out surface cleaning; the rear slope surface of the anchor wall is excavated, steel bars are bound, anchor wall concrete is poured in a layered mode, the rock anchor and concrete anchor wall is adopted as the rear anchor structure of the ground anchor according to local conditions, the cost of the rock anchor and concrete anchor wall structure is about 1/4 of that of a gravity type ground anchor structure, and the cost of the ground anchor is greatly reduced; according to the tower, a powerful main body cable tower structure can be directly used as a foundation of the tower, a huge tower structure does not need to be arranged, the construction cost is greatly saved, and it is possible that a cable is hung in a large-span suspension bridge.
本发明公开了一种大跨度悬索桥缆索吊装施工方法，包括缆索吊，为了保证预应力力岩锚的成孔精度，采取先浇筑锚墙再进行预应力岩锚的施工，先根据测量放样出来的岩锚中心位置，再拉线把锚墙位置放样出来，再进行清表，把锚墙的后坡面开挖出来，绑扎钢筋，分层浇筑锚墙砼，通过因地制宜的采用岩锚＋混凝土锚墙作为地锚的后锚结构，岩锚＋混凝土锚墙结构为重力式地锚构造成本1/4左右，极大地缩减了地锚成本，塔架可以直接利用强大的主体索塔结构作为塔架的基础，不需设置庞大的塔架结构，极大的节约了施工成本，使得缆索吊在大跨度悬索桥中成为可能。
Cable hoisting construction method for large-span suspension bridge
The invention discloses a cable hoisting construction method for a large-span suspension bridge, which comprises the following steps: in order to ensure the hole forming precision of a prestressed rock anchor, firstly pouring an anchor wall, then carrying out the construction of the prestressed rock anchor, firstly setting out the position of the anchor wall according to the central position of the rock anchor which is measured and set out, and then carrying out surface cleaning; the rear slope surface of the anchor wall is excavated, steel bars are bound, anchor wall concrete is poured in a layered mode, the rock anchor and concrete anchor wall is adopted as the rear anchor structure of the ground anchor according to local conditions, the cost of the rock anchor and concrete anchor wall structure is about 1/4 of that of a gravity type ground anchor structure, and the cost of the ground anchor is greatly reduced; according to the tower, a powerful main body cable tower structure can be directly used as a foundation of the tower, a huge tower structure does not need to be arranged, the construction cost is greatly saved, and it is possible that a cable is hung in a large-span suspension bridge.
本发明公开了一种大跨度悬索桥缆索吊装施工方法，包括缆索吊，为了保证预应力力岩锚的成孔精度，采取先浇筑锚墙再进行预应力岩锚的施工，先根据测量放样出来的岩锚中心位置，再拉线把锚墙位置放样出来，再进行清表，把锚墙的后坡面开挖出来，绑扎钢筋，分层浇筑锚墙砼，通过因地制宜的采用岩锚＋混凝土锚墙作为地锚的后锚结构，岩锚＋混凝土锚墙结构为重力式地锚构造成本1/4左右，极大地缩减了地锚成本，塔架可以直接利用强大的主体索塔结构作为塔架的基础，不需设置庞大的塔架结构，极大的节约了施工成本，使得缆索吊在大跨度悬索桥中成为可能。
Cable hoisting construction method for large-span suspension bridge
一种大跨度悬索桥缆索吊装施工方法
XU LEI (author) / XU XIANMING (author) / SHEN WEICHENG (author) / LIU XIAOHAN (author)
2022-08-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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