A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-floating anchor rod construction method
The invention discloses a construction method of an anti-floating anchor rod. Comprising the steps of paying-off positioning, vibration drilling, anchor rod steel bar hoisting and placing, vibration grouting, maintenance, detection and acceptance. A vibration drilling machine is adopted to conduct rotary drilling operation through a long spiral drill rod, plain filling soil and the like brought out by rotation of the long spiral drill rod in the drilling process are discharged out of a hole along with vibration of a vibration hammer of the drilling machine, hole bottom reverse grouting is adopted, a grouting pipe is fixed in a steel sleeve, the upper end of the steel sleeve is connected with the vibration hammer, the steel sleeve is inserted into the position 400 mm above the bottom of the anchor hole, and the anchor hole is formed. And the steel sleeve is slowly lifted during grouting until the slurry material emerges from the foundation slab. According to the construction method, a retaining wall PVC pipe does not need to be lowered, graded broken stone does not need to be poured, and the construction cost is effectively saved; the anchor rod is lowered synchronously through vibration drilling and full casing follow-up, and finally, the sleeve is lifted while grouting is conducted, so that the construction period is shortened, and the construction efficiency is improved; and vibration grouting is adopted, so that the formed grouting body is dense in texture, and cracks and slurry shrinkage are effectively avoided.
本发明公开了一种抗浮锚杆施工方法。包括：放线定位，振动钻孔，吊放锚杆钢筋，振动注浆，养护，检测和验收；采用振动钻机通过长螺旋钻杆旋转钻孔作业，伴随钻机振动锤的振动，同时将钻孔过程中长螺旋钻杆转动所带出的素填土等排出孔洞外，采用孔底反向注浆，注浆管固定在钢套筒之中，钢套筒上端连接振动锤，钢套筒插入至锚孔底部上方400mm，注浆中同时缓慢提升钢套筒，至基础底板冒出浆体材料。本发明施工方法不用下放护壁PVC管，无需灌入级配碎石，有效节约施工成本；采用振动钻孔和全套管跟进同步进行下放锚杆，最后边注浆边提升套筒，缩短施工周期，提高施工效率；采用振动注浆，可使注浆体成型后质地密实，有效避免出现的裂缝和泥浆收缩。
Anti-floating anchor rod construction method
The invention discloses a construction method of an anti-floating anchor rod. Comprising the steps of paying-off positioning, vibration drilling, anchor rod steel bar hoisting and placing, vibration grouting, maintenance, detection and acceptance. A vibration drilling machine is adopted to conduct rotary drilling operation through a long spiral drill rod, plain filling soil and the like brought out by rotation of the long spiral drill rod in the drilling process are discharged out of a hole along with vibration of a vibration hammer of the drilling machine, hole bottom reverse grouting is adopted, a grouting pipe is fixed in a steel sleeve, the upper end of the steel sleeve is connected with the vibration hammer, the steel sleeve is inserted into the position 400 mm above the bottom of the anchor hole, and the anchor hole is formed. And the steel sleeve is slowly lifted during grouting until the slurry material emerges from the foundation slab. According to the construction method, a retaining wall PVC pipe does not need to be lowered, graded broken stone does not need to be poured, and the construction cost is effectively saved; the anchor rod is lowered synchronously through vibration drilling and full casing follow-up, and finally, the sleeve is lifted while grouting is conducted, so that the construction period is shortened, and the construction efficiency is improved; and vibration grouting is adopted, so that the formed grouting body is dense in texture, and cracks and slurry shrinkage are effectively avoided.
本发明公开了一种抗浮锚杆施工方法。包括：放线定位，振动钻孔，吊放锚杆钢筋，振动注浆，养护，检测和验收；采用振动钻机通过长螺旋钻杆旋转钻孔作业，伴随钻机振动锤的振动，同时将钻孔过程中长螺旋钻杆转动所带出的素填土等排出孔洞外，采用孔底反向注浆，注浆管固定在钢套筒之中，钢套筒上端连接振动锤，钢套筒插入至锚孔底部上方400mm，注浆中同时缓慢提升钢套筒，至基础底板冒出浆体材料。本发明施工方法不用下放护壁PVC管，无需灌入级配碎石，有效节约施工成本；采用振动钻孔和全套管跟进同步进行下放锚杆，最后边注浆边提升套筒，缩短施工周期，提高施工效率；采用振动注浆，可使注浆体成型后质地密实，有效避免出现的裂缝和泥浆收缩。
Anti-floating anchor rod construction method
一种抗浮锚杆施工方法
DENG PENG (author) / PENG SHICHENG (author) / ZHANG XIAO (author) / CAO SHUHAN (author) / YIN BENLIN (author) / WANG ZAIQIANG (author) / REN XINGCHANG (author) / WANG JUN (author) / YE HAO (author) / LI XIA (author)
2023-01-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2024
Post-construction anti-floating anchor rod construction method
| European Patent Office | 2024