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A platform for research: civil engineering, architecture and urbanism
Construction process of soft soil layer reaming anchor rod
The invention discloses a construction process of a soft soil layer reaming anchor rod. A hole is formed in a preset position, anchor hole drilling is carried out after a drilling machine is positioned, wall protection through slurry is carried out on the anchor hole; a grouting bag and a steel pipe conforming to the designed depth are prepared, the steel pipe is sleeved with the grouting bag, the two ends of the grouting bag are bound to the steel pipe, a plurality of through holes are formed in the side wall of the steel pipe, and the grouting bag is an airtight elastic bag so that the grouting bag bound to the steel pipe can be airtight; a grouting hose is inserted into the grouting bag; the grouting bag, the steel pipe and the grouting hose are jointly fed into the anchor hole, so that the grouting bag is located at the bottom of the anchor hole; and on the premise that the fracture pressure of the grouting bag is not exceeded, pressure grouting is carried out in the grouting bag through the grouting hose, so that the grouting bag expands in the radial direction of the grouting bag to achieve reaming and pile building operation. According to the process, the effect that the anchor rod reaming operation is completed at the minimum and safest cost is realized.
本发明公开了一种软土层扩孔锚杆的施工工艺，通过在预设位置开孔，钻机定位好后进行钻锚孔，并对锚孔进行泥浆护壁；制备好符合设计深度的注浆袋和钢管，将注浆袋套在钢管上并将注浆袋的两端绑扎在钢管上，钢管侧壁具有若干通孔，注浆袋为不透气的弹性袋，以使绑扎在钢管上的注浆袋不透气；往注浆袋内插入一注浆软管；将注浆袋、钢管和注浆软管共同送入锚孔内，以使注浆袋位于锚孔底部；在不超出注浆袋破裂压力的前提下，通过注浆软管往注浆袋内进行压力注浆，以使注浆袋沿其径向膨胀实现扩孔筑桩作业。本工艺实新了最小最安全的成本下完成扩孔锚杆作业。
Construction process of soft soil layer reaming anchor rod
The invention discloses a construction process of a soft soil layer reaming anchor rod. A hole is formed in a preset position, anchor hole drilling is carried out after a drilling machine is positioned, wall protection through slurry is carried out on the anchor hole; a grouting bag and a steel pipe conforming to the designed depth are prepared, the steel pipe is sleeved with the grouting bag, the two ends of the grouting bag are bound to the steel pipe, a plurality of through holes are formed in the side wall of the steel pipe, and the grouting bag is an airtight elastic bag so that the grouting bag bound to the steel pipe can be airtight; a grouting hose is inserted into the grouting bag; the grouting bag, the steel pipe and the grouting hose are jointly fed into the anchor hole, so that the grouting bag is located at the bottom of the anchor hole; and on the premise that the fracture pressure of the grouting bag is not exceeded, pressure grouting is carried out in the grouting bag through the grouting hose, so that the grouting bag expands in the radial direction of the grouting bag to achieve reaming and pile building operation. According to the process, the effect that the anchor rod reaming operation is completed at the minimum and safest cost is realized.
本发明公开了一种软土层扩孔锚杆的施工工艺，通过在预设位置开孔，钻机定位好后进行钻锚孔，并对锚孔进行泥浆护壁；制备好符合设计深度的注浆袋和钢管，将注浆袋套在钢管上并将注浆袋的两端绑扎在钢管上，钢管侧壁具有若干通孔，注浆袋为不透气的弹性袋，以使绑扎在钢管上的注浆袋不透气；往注浆袋内插入一注浆软管；将注浆袋、钢管和注浆软管共同送入锚孔内，以使注浆袋位于锚孔底部；在不超出注浆袋破裂压力的前提下，通过注浆软管往注浆袋内进行压力注浆，以使注浆袋沿其径向膨胀实现扩孔筑桩作业。本工艺实新了最小最安全的成本下完成扩孔锚杆作业。
Construction process of soft soil layer reaming anchor rod
一种软土层扩孔锚杆的施工工艺
LYU YINGMING (author) / WU YANQUAN (author) / HUANG HAIBIN (author) / GUO ZHAOXU (author)
2021-07-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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