A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Suspension bridge prestressed steel strand rock hole anchorage and construction method
The invention provides a suspension bridge prestressed steel strand rock hole anchorage construction method which comprises the following steps: firstly, constructing an inclined shaft and an adit, and simultaneously excavating a front anchor surface and a splay cable saddle buttress foundation pit; then a rear anchor chamber is constructed, the inclined shaft, the adit and the rear anchor chamber are supported, and the rear anchor chamber is communicated to the ground through the inclined shaft; a prestressed pipeline hole is obliquely drilled in the rock anchor body; penetrating prestressed tendon pipelines and prestressed steel strands, and pouring anchor backing plates on the front and rear anchor surfaces; erecting a bracket to construct a splay cable saddle buttress and a front anchor chamber concrete bottom plate; an anchoring system is constructed, and the prestressed steel strands are tensioned; a splay cable saddle is installed, and a main cable strand is erected and tensioned; and grouting is conducted between the prestressed pipeline and the hole wall, and after the main cable is erected, the remaining anchor chamber is constructed. According to the prestressed steel strand rock hole anchorage, the main cable is dispersedly anchored on the anchor body, the anchor body tensions the prestressed steel strand through the rock hole to bear the tension of the main cable, the integrity loss of surrounding rock mass is small, the construction speed is high, and safety is good.
本发明创造提供了一种悬索桥预应力钢绞线岩孔锚碇施工方法，先施工斜井和平洞，同时进行前锚面和散索鞍支墩基坑开挖；然后施工后锚室，同时支护斜井、平洞及后锚室，后锚室通过斜井连通到地面；在岩锚体上斜钻预应力管道孔；穿预应力筋管道和预应力钢绞线，并浇筑前后锚面锚垫板；搭设支架施工散索鞍支墩及前锚室混凝土底板；施工锚固系统，张拉预应力钢绞线；安装散索鞍，架设主缆索股并张拉；预应力管道与孔壁之间压浆，待主缆架设完成后，施工剩余部分锚室。本发明创造中预应力钢绞线岩孔锚碇是将主缆分散锚固在锚体上，锚体通过岩孔张拉预应力钢绞线承受主缆拉力，周围的岩体的完整性损失较小，施工速度快，安全性好。
Suspension bridge prestressed steel strand rock hole anchorage and construction method
The invention provides a suspension bridge prestressed steel strand rock hole anchorage construction method which comprises the following steps: firstly, constructing an inclined shaft and an adit, and simultaneously excavating a front anchor surface and a splay cable saddle buttress foundation pit; then a rear anchor chamber is constructed, the inclined shaft, the adit and the rear anchor chamber are supported, and the rear anchor chamber is communicated to the ground through the inclined shaft; a prestressed pipeline hole is obliquely drilled in the rock anchor body; penetrating prestressed tendon pipelines and prestressed steel strands, and pouring anchor backing plates on the front and rear anchor surfaces; erecting a bracket to construct a splay cable saddle buttress and a front anchor chamber concrete bottom plate; an anchoring system is constructed, and the prestressed steel strands are tensioned; a splay cable saddle is installed, and a main cable strand is erected and tensioned; and grouting is conducted between the prestressed pipeline and the hole wall, and after the main cable is erected, the remaining anchor chamber is constructed. According to the prestressed steel strand rock hole anchorage, the main cable is dispersedly anchored on the anchor body, the anchor body tensions the prestressed steel strand through the rock hole to bear the tension of the main cable, the integrity loss of surrounding rock mass is small, the construction speed is high, and safety is good.
本发明创造提供了一种悬索桥预应力钢绞线岩孔锚碇施工方法，先施工斜井和平洞，同时进行前锚面和散索鞍支墩基坑开挖；然后施工后锚室，同时支护斜井、平洞及后锚室，后锚室通过斜井连通到地面；在岩锚体上斜钻预应力管道孔；穿预应力筋管道和预应力钢绞线，并浇筑前后锚面锚垫板；搭设支架施工散索鞍支墩及前锚室混凝土底板；施工锚固系统，张拉预应力钢绞线；安装散索鞍，架设主缆索股并张拉；预应力管道与孔壁之间压浆，待主缆架设完成后，施工剩余部分锚室。本发明创造中预应力钢绞线岩孔锚碇是将主缆分散锚固在锚体上，锚体通过岩孔张拉预应力钢绞线承受主缆拉力，周围的岩体的完整性损失较小，施工速度快，安全性好。
Suspension bridge prestressed steel strand rock hole anchorage and construction method
一种悬索桥预应力钢绞线岩孔锚碇及施工方法
HUO YANLEI (author) / ZHAO JIAN (author) / AN LUMING (author) / FAN LILONG (author) / LIAN YANJIN (author) / LYU GUANJUN (author) / CAO YU (author) / WANG DIANWEI (author) / ZHU LINDA (author) / FENG WENYUAN (author)
2023-05-02
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
| European Patent Office | 2023
Prestressed anchorage device for highway bridge construction
| European Patent Office | 2023
Prestressed anchorage device for highway bridge construction
| European Patent Office | 2024
Prestressed anchorage device for highway bridge construction
| European Patent Office | 2021