A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anchor rod device suitable for fault anchoring and supporting method
The invention provides an anchor rod device suitable for fault anchoring and a supporting method, and relates to the technical field of rock-soil anchoring. According to the anchor rod device suitable for fault anchoring, the outer sleeve corresponds to the position of a fault in an anchor rod drill hole, when fault dislocation occurs, the lower anchor rod moves in a staggered mode relative to the upper anchor rod, the outer sleeve is bent at the position of the stranded wire cavity, meanwhile, the second steel strand connecting disc is far away from the first steel strand connecting disc, and the outer sleeve is bent at the position of the stranded wire cavity. Part or all of the steel strands are changed into a tensioned state from a loose state, the steel strands are stressed after being tensioned so as to strengthen the connecting strength of the upper anchor rod and the lower anchor rod, the second steel strand connecting disc moves in the axial direction of the yielding cylinder, the yielding piece is extruded and deformed to achieve yielding buffering, and along with continuous tensioning of the steel strands, the yielding piece is continuously extruded and deformed, so that the yielding buffering effect is achieved. And finally, the steel strand and the yielding sheet reach a static balance state. In this way, the anchor rod device can bear part of shear stress generated by fault dislocation and instantaneous large axial stress at the fault position.
本发明提供了一种适用于断层锚固的锚杆装置及支护方法，涉及岩土锚固技术领域。该适用于断层锚固的锚杆装置，使外套筒对应锚杆钻孔中断层的位置，在断层错动发生时，下锚杆相对于上锚杆发生错位移动，外套筒在绞线腔体位置发生弯曲，同时，第二钢绞线连接盘远离第一钢绞线连接盘，部分或全部的钢绞线由松弛状态变为张紧状态，钢绞线张紧后受力以加强上锚杆和下锚杆的连接强度，第二钢绞线连接盘沿着让压筒的轴向移动，让压片被挤压变形实现让压缓冲，随着钢绞线持续张紧、让压片持续被挤压变形，最终使钢绞线、让压片达到静力平衡状态。如此，可以使锚杆装置在断层位置承载因断层错动产生的部分剪应力和瞬时较大的轴向应力。
Anchor rod device suitable for fault anchoring and supporting method
The invention provides an anchor rod device suitable for fault anchoring and a supporting method, and relates to the technical field of rock-soil anchoring. According to the anchor rod device suitable for fault anchoring, the outer sleeve corresponds to the position of a fault in an anchor rod drill hole, when fault dislocation occurs, the lower anchor rod moves in a staggered mode relative to the upper anchor rod, the outer sleeve is bent at the position of the stranded wire cavity, meanwhile, the second steel strand connecting disc is far away from the first steel strand connecting disc, and the outer sleeve is bent at the position of the stranded wire cavity. Part or all of the steel strands are changed into a tensioned state from a loose state, the steel strands are stressed after being tensioned so as to strengthen the connecting strength of the upper anchor rod and the lower anchor rod, the second steel strand connecting disc moves in the axial direction of the yielding cylinder, the yielding piece is extruded and deformed to achieve yielding buffering, and along with continuous tensioning of the steel strands, the yielding piece is continuously extruded and deformed, so that the yielding buffering effect is achieved. And finally, the steel strand and the yielding sheet reach a static balance state. In this way, the anchor rod device can bear part of shear stress generated by fault dislocation and instantaneous large axial stress at the fault position.
本发明提供了一种适用于断层锚固的锚杆装置及支护方法，涉及岩土锚固技术领域。该适用于断层锚固的锚杆装置，使外套筒对应锚杆钻孔中断层的位置，在断层错动发生时，下锚杆相对于上锚杆发生错位移动，外套筒在绞线腔体位置发生弯曲，同时，第二钢绞线连接盘远离第一钢绞线连接盘，部分或全部的钢绞线由松弛状态变为张紧状态，钢绞线张紧后受力以加强上锚杆和下锚杆的连接强度，第二钢绞线连接盘沿着让压筒的轴向移动，让压片被挤压变形实现让压缓冲，随着钢绞线持续张紧、让压片持续被挤压变形，最终使钢绞线、让压片达到静力平衡状态。如此，可以使锚杆装置在断层位置承载因断层错动产生的部分剪应力和瞬时较大的轴向应力。
Anchor rod device suitable for fault anchoring and supporting method
一种适用于断层锚固的锚杆装置及支护方法
XU RONGCHAO (author) / WANG YIBO (author) / FENG HONGCHAO (author) / GAO FENG (author) / ZHOU WENPENG (author) / LI ZHEN (author) / MENG FANZHEN (author) / ZHAO HONGBO (author) / ZHAO YANG (author) / CHEN WEI (author)
2023-01-17
Patent
Electronic Resource
Chinese
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