Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-shearing pre-stressed anchor rod device and construction method thereof
The invention provides an anti-shearing pre-stressed anchor rod device and a construction method thereof. The anti-shearing pre-stressed anchor rod device comprises an anchor rod, the anchor rod is sleeved with a steel sleeve, the anchor rod is provided with an external thread, the steel sleeve is internally provided with an internal thread, and the steel sleeve is rotationally connected with the anchor rod through the external thread and the internal thread. According to the technical scheme, the anchor rod is sleeved with the steel sleeve, the steel sleeve is of a long-circular-truncated-cone-shaped structure, the outer diameter of the steel sleeve is smaller than the diameter of a drill hole, the steel sleeve can be conveniently drilled into an anchoring section to be fixed, and the shearing resistance of the whole device is improved; and the anchor rod is fixed in the drill hole through the anchoring section, the anchor rod is tensioned, then the tensile force, namely the prestress, on the anchor rod is kept through an anchorage device, so that the anchor rod has good shear resistance and prestress, and the structural stability of urban rail transit tunnels, side slopes and foundation pits can be enhanced.
本发明提供了一种抗剪预应力锚杆装置及其施工方法，包括锚杆，所述锚杆的外部套设有钢套管，所述锚杆设有外螺纹，所述钢套管内设有内螺纹，所述钢套管与所述锚杆通过所述外螺纹和所述内螺纹转动连接。本发明的技术方案通过在锚杆上套设钢套管，钢套管是长圆台形结构，钢套管外直径小于钻孔直径，方便钻进锚固段内进行固定，提高整个装置的抗剪性能；通过锚固段将锚杆固定在钻孔内，对锚杆进行张拉再通过锚具保持锚杆上的拉力即预应力，这样本发明即有很好的抗剪性能，又有预应力，可以为城市轨道交通隧道、边坡、基坑增强结构稳定性。
Anti-shearing pre-stressed anchor rod device and construction method thereof
The invention provides an anti-shearing pre-stressed anchor rod device and a construction method thereof. The anti-shearing pre-stressed anchor rod device comprises an anchor rod, the anchor rod is sleeved with a steel sleeve, the anchor rod is provided with an external thread, the steel sleeve is internally provided with an internal thread, and the steel sleeve is rotationally connected with the anchor rod through the external thread and the internal thread. According to the technical scheme, the anchor rod is sleeved with the steel sleeve, the steel sleeve is of a long-circular-truncated-cone-shaped structure, the outer diameter of the steel sleeve is smaller than the diameter of a drill hole, the steel sleeve can be conveniently drilled into an anchoring section to be fixed, and the shearing resistance of the whole device is improved; and the anchor rod is fixed in the drill hole through the anchoring section, the anchor rod is tensioned, then the tensile force, namely the prestress, on the anchor rod is kept through an anchorage device, so that the anchor rod has good shear resistance and prestress, and the structural stability of urban rail transit tunnels, side slopes and foundation pits can be enhanced.
本发明提供了一种抗剪预应力锚杆装置及其施工方法，包括锚杆，所述锚杆的外部套设有钢套管，所述锚杆设有外螺纹，所述钢套管内设有内螺纹，所述钢套管与所述锚杆通过所述外螺纹和所述内螺纹转动连接。本发明的技术方案通过在锚杆上套设钢套管，钢套管是长圆台形结构，钢套管外直径小于钻孔直径，方便钻进锚固段内进行固定，提高整个装置的抗剪性能；通过锚固段将锚杆固定在钻孔内，对锚杆进行张拉再通过锚具保持锚杆上的拉力即预应力，这样本发明即有很好的抗剪性能，又有预应力，可以为城市轨道交通隧道、边坡、基坑增强结构稳定性。
Anti-shearing pre-stressed anchor rod device and construction method thereof
一种抗剪预应力锚杆装置及其施工方法
XIAO YUHANG (Autor:in) / SHAN RENLIANG (Autor:in) / XIA PENG (Autor:in) / JI HONGKUI (Autor:in) / WANG YANMIN (Autor:in) / YAN HEHE (Autor:in) / WANG YINKUN (Autor:in) / PU WANXU (Autor:in) / YANG RISEN (Autor:in) / SONG HAOTIAN (Autor:in)
20.08.2021
Patent
Elektronische Ressource
Chinesisch
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