A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Resistance-increasing large-deformation anchor rod
The invention relates to a resistance-increasing large-deformation anchor rod. The resistance-increasing large-deformation anchor rod comprises a sleeve, a rod body, a resistance-increasing structure, brackets, a carrying plate, nuts and gaskets, wherein the interior of the sleeve is subjected to sanding treatment, and the exterior of the sleeve is of a thread structure; a rod body part in the sleeve is subjected to the sanding treatment, and a rod body part outside the sleeve is thickened and provided with a thread; a certain prestress is applied between the sleeve and the rod body, so that a certain initial friction force is formed therebetween; the resistance-increasing structure is a quasi-cone, integrated with the rod, and uniformly distributed with through holes; a layer of low-strength plastic film is attached to the through holes of the resistance-increasing structure; and a cavity is fully filled with filling substances with both elasticity and crushability. The resistance-increasing large-deformation anchor rod disclosed by the invention is capable of automatically stretching when surrounding rock has large deformation, and providing a gradually-increased constraint force, thus achieving a good supporting effect; and the resistance-increasing large-deformation anchor rod can be used for supporting for engineering of tunnels, side slopes, soft rock and the like.
Resistance-increasing large-deformation anchor rod
The invention relates to a resistance-increasing large-deformation anchor rod. The resistance-increasing large-deformation anchor rod comprises a sleeve, a rod body, a resistance-increasing structure, brackets, a carrying plate, nuts and gaskets, wherein the interior of the sleeve is subjected to sanding treatment, and the exterior of the sleeve is of a thread structure; a rod body part in the sleeve is subjected to the sanding treatment, and a rod body part outside the sleeve is thickened and provided with a thread; a certain prestress is applied between the sleeve and the rod body, so that a certain initial friction force is formed therebetween; the resistance-increasing structure is a quasi-cone, integrated with the rod, and uniformly distributed with through holes; a layer of low-strength plastic film is attached to the through holes of the resistance-increasing structure; and a cavity is fully filled with filling substances with both elasticity and crushability. The resistance-increasing large-deformation anchor rod disclosed by the invention is capable of automatically stretching when surrounding rock has large deformation, and providing a gradually-increased constraint force, thus achieving a good supporting effect; and the resistance-increasing large-deformation anchor rod can be used for supporting for engineering of tunnels, side slopes, soft rock and the like.
Resistance-increasing large-deformation anchor rod
XIE BEIJING (author) / LI JING (author) / SHAO SHENGYANG (author) / WANG QIFEI (author) / LYU PINGYANG (author) / MOU LINTONG (author) / WEI YIHANG (author)
2015-12-23
Patent
Electronic Resource
English
CONSTANT-RESISTANCE AND LARGE DEFORMATION ANCHOR CABLE AND CONSTANT-RESISTANCE DEVICE
| European Patent Office | 2018
Constant-resistance and large deformation anchor cable and constant-resistance device
| European Patent Office | 2017
Multistage resistance-increasing anchor rod and construction method
| European Patent Office | 2015