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Construction method of expansion anchor rod with slope sliding function
The construction method comprises the following steps that a mounting hole is formed in a preset position, the expansion anchor rod is placed in the mounting hole, the expansion anchor rod comprises an anchor rod body and at least two sleeve sections, the first end of the anchor rod body is provided with a blocking head, the second end of the anchor rod body is provided with an expansion mechanism, and the blocking head is connected with the expansion mechanism; the adjacent sleeve sections can slide along the inclined surface under the pushing of the expansion body mechanism so as to generate dislocation; pre-tightening force is applied to the expansion body mechanism, so that the adjacent casing pipe sections slide along the inclined surfaces to generate dislocation; and grouting is conducted in the mounting holes, so that the expansion anchor rod, the grouting body and the surrounding rock form an overall stress structure. According to the expansion anchor rod, after the expansion anchor rod is placed in the mounting hole, by pushing the expansion mechanism, the adjacent sleeve sections slide along the slopes between the adjacent sleeve sections to generate dislocation, so that expansion is achieved, then grouting is conducted to form an overall stress structure, the axial friction resistance of the expansion anchor rod can be greatly increased, and the tensile property of the anchor rod is improved.
本发明提供一种带斜面滑动的扩体锚杆的施工方法，该施工方法包括以下步骤：在预设位置打设安装孔，并将扩体锚杆放置于安装孔内，其中，扩体锚杆包括锚杆本体以及至少两个套管段，锚杆本体的第一端设有阻挡头，第二端设有扩体机构，相邻套管段可在扩体机构的推动下沿斜面滑动以产生错位；对扩体机构施加预紧力，使得相邻套管段沿斜面滑动以产生错位；在安装孔内进行注浆，以使扩体锚杆、注浆体、围岩形成整体受力结构。本发明中，在将扩体锚杆放置与安装孔内后，通过推动扩体机构，使得相邻套管段在沿相互之间的斜面滑动以产生错位，从而实现扩体，之后再注浆形成整体受力结构，可大大增加扩体锚杆轴向的摩擦阻力，提高了锚杆的抗拉性能。
Construction method of expansion anchor rod with slope sliding function
The construction method comprises the following steps that a mounting hole is formed in a preset position, the expansion anchor rod is placed in the mounting hole, the expansion anchor rod comprises an anchor rod body and at least two sleeve sections, the first end of the anchor rod body is provided with a blocking head, the second end of the anchor rod body is provided with an expansion mechanism, and the blocking head is connected with the expansion mechanism; the adjacent sleeve sections can slide along the inclined surface under the pushing of the expansion body mechanism so as to generate dislocation; pre-tightening force is applied to the expansion body mechanism, so that the adjacent casing pipe sections slide along the inclined surfaces to generate dislocation; and grouting is conducted in the mounting holes, so that the expansion anchor rod, the grouting body and the surrounding rock form an overall stress structure. According to the expansion anchor rod, after the expansion anchor rod is placed in the mounting hole, by pushing the expansion mechanism, the adjacent sleeve sections slide along the slopes between the adjacent sleeve sections to generate dislocation, so that expansion is achieved, then grouting is conducted to form an overall stress structure, the axial friction resistance of the expansion anchor rod can be greatly increased, and the tensile property of the anchor rod is improved.
本发明提供一种带斜面滑动的扩体锚杆的施工方法，该施工方法包括以下步骤：在预设位置打设安装孔，并将扩体锚杆放置于安装孔内，其中，扩体锚杆包括锚杆本体以及至少两个套管段，锚杆本体的第一端设有阻挡头，第二端设有扩体机构，相邻套管段可在扩体机构的推动下沿斜面滑动以产生错位；对扩体机构施加预紧力，使得相邻套管段沿斜面滑动以产生错位；在安装孔内进行注浆，以使扩体锚杆、注浆体、围岩形成整体受力结构。本发明中，在将扩体锚杆放置与安装孔内后，通过推动扩体机构，使得相邻套管段在沿相互之间的斜面滑动以产生错位，从而实现扩体，之后再注浆形成整体受力结构，可大大增加扩体锚杆轴向的摩擦阻力，提高了锚杆的抗拉性能。
Construction method of expansion anchor rod with slope sliding function
一种带斜面滑动的扩体锚杆的施工方法
ZHANG FANGE (author) / LI WENBING (author) / YAO TIEJUN (author) / GAO JUNCAI (author) / SHI WEISHENG (author) / LI YANXUN (author) / DUAN YUANZHAO (author) / REN HUAQING (author) / TIAN SHUGUANG (author) / LI YIFAN (author)
2024-09-20
Patent
Electronic Resource
Chinese
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