A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mountainous area power transmission tower composite foundation and construction method
The invention discloses a mountainous area power transmission tower composite foundation which comprises pressure type anchor rods and combined steel pipe piles. The pressure type anchor rod comprises an unbonded anchor bar and a grouting body; the unbonded anchor bar comprises an isolation sleeve, a prestressed bar and a bearing plate, and the lower end of the isolation sleeve is located in the bed rock and fixedly connected with the bearing plate; the combined steel pipe pile comprises an inner steel pipe arranged outside the grouting body in a sleeving mode and an outer steel pipe arranged outside the upper end of the inner steel pipe in a sleeving mode. The pressure type anchor rod further comprises a mounting seat which is detachably connected to the upper end of the outer steel pipe and can be used for mounting a power transmission tower, and concrete is poured among the inner steel pipe, the mounting seat and the outer steel pipe. The prestressed tendons are tensioned, the upper ends and the lower ends of the prestressed tendons are locked on the mounting base and the bearing plate respectively, the upper end of the grouting body makes contact with the mounting base, and the bearing plate is embedded in the lower end of the grouting body. According to the mountainous area power transmission tower composite foundation and the construction method, the construction period can be shortened, and the anti-pulling performance can be improved.
本发明公开了一种山区输电铁塔复合基础，包括压力型锚杆和组合钢管桩；压力型锚杆包括无粘结锚筋和注浆体；无粘结锚筋包括隔离套管、预应力筋和承压板，隔离套管的下端位于基岩内并固定连接有承压板；组合钢管桩包括套设置在注浆体外的内钢管，以及套设置在内钢管的上端外的外钢管；压力型锚杆还包括可拆卸连接在外钢管的上端并可安装输电铁塔的安装座，内钢管、安装座和外钢管之间浇筑有混凝土；预应力筋受拉，且预应力筋的上下两端分别锁紧在安装座和承压板上，注浆体的上端和安装座的接触，承压板埋设在注浆体的下端。本发明提出一种山区输电铁塔复合基础及施工方法，可缩短工期，增加抗拔性能。
Mountainous area power transmission tower composite foundation and construction method
The invention discloses a mountainous area power transmission tower composite foundation which comprises pressure type anchor rods and combined steel pipe piles. The pressure type anchor rod comprises an unbonded anchor bar and a grouting body; the unbonded anchor bar comprises an isolation sleeve, a prestressed bar and a bearing plate, and the lower end of the isolation sleeve is located in the bed rock and fixedly connected with the bearing plate; the combined steel pipe pile comprises an inner steel pipe arranged outside the grouting body in a sleeving mode and an outer steel pipe arranged outside the upper end of the inner steel pipe in a sleeving mode. The pressure type anchor rod further comprises a mounting seat which is detachably connected to the upper end of the outer steel pipe and can be used for mounting a power transmission tower, and concrete is poured among the inner steel pipe, the mounting seat and the outer steel pipe. The prestressed tendons are tensioned, the upper ends and the lower ends of the prestressed tendons are locked on the mounting base and the bearing plate respectively, the upper end of the grouting body makes contact with the mounting base, and the bearing plate is embedded in the lower end of the grouting body. According to the mountainous area power transmission tower composite foundation and the construction method, the construction period can be shortened, and the anti-pulling performance can be improved.
本发明公开了一种山区输电铁塔复合基础，包括压力型锚杆和组合钢管桩；压力型锚杆包括无粘结锚筋和注浆体；无粘结锚筋包括隔离套管、预应力筋和承压板，隔离套管的下端位于基岩内并固定连接有承压板；组合钢管桩包括套设置在注浆体外的内钢管，以及套设置在内钢管的上端外的外钢管；压力型锚杆还包括可拆卸连接在外钢管的上端并可安装输电铁塔的安装座，内钢管、安装座和外钢管之间浇筑有混凝土；预应力筋受拉，且预应力筋的上下两端分别锁紧在安装座和承压板上，注浆体的上端和安装座的接触，承压板埋设在注浆体的下端。本发明提出一种山区输电铁塔复合基础及施工方法，可缩短工期，增加抗拔性能。
Mountainous area power transmission tower composite foundation and construction method
一种山区输电铁塔复合基础及施工方法
MA JIAN (author) / XU GANG (author) / LYU QING (author) / XU JUNYUE (author) / LI WENWU (author) / HUA XIANHONG (author) / WU CHENGZHOU (author) / FAN ZHENKAI (author) / JIANG HUILIN (author) / ZHANG QI (author)
2024-05-03
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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