Rock and soil anchoring structure

Abstract

The invention discloses a rock and soil anchoring structure. The rock and soil anchoring structure comprises an anchor head, an anchor rod body, a free section, an anchoring section and auxiliary anchoring sections. The anchor head is fixed to a retaining structure and connected with one end of the anchor rod body. The other end of the anchor rod body stretches into rock and soil to form the free section and the anchoring section. The auxiliary anchoring sections and the anchoring section intersect. A grouting body connected into a whole is arranged in the anchoring section and the auxiliary anchoring sections. By means of the rock and soil anchoring structure, the auxiliary anchoring sections and the anchoring section intersect, the grouting body connected into the whole is arranged in the anchoring section and the auxiliary anchoring sections, a linear structure of an anchor rod in the prior art is changed, adhesive friction force can be formed in multiple directions, the adhesive friction force between the anchoring section and a surrounding rock and soil medium is enhanced, and the pulling resistance of the rock and soil anchoring device is improved.

Description

technical field [0001] The invention relates to a civil construction facility, in particular to a rock-soil anchoring structure. Background technique [0002] Rock-soil anchoring technology is an engineering technology that embeds a tensile member in the ground to improve the strength and self-stabilization ability of the rock and soil. Because this technology greatly reduces the self-weight of the structure, saves engineering materials, and ensures that the engineering Therefore, it is widely used in engineering. The rock and soil anchoring technology uses the shear strength of the rock and soil around the anchor to transmit the tensile force of the structure, or to maintain the excavation of the ground. The self-stability of the surface, it can provide the resistance to act on the structure to bear the external load, and can connect the structure and the formation together to form a complex that works together, so that it can effectively bear the tensile force and shear fo...

AI Technical Summary

Problems solved by technology

[0002] Rock-soil anchoring technology is an engineering technology that embeds a tensile member in the ground to improve the strength and self-stabilization ability of the rock and soil. Because this technology greatly reduces the self-weight of the structure, saves engineering materials, and ensures that the engineering Therefore, it is widely used in engineering. The rock and soil anchoring technology uses the shear strength of the rock and soil around the anchor to transmit the tensile force of the structure, or to maintain the excavation of the ground. The self-stability of the surface, it can provide the resistance to act on the structure to bear the external load, and can connect the structure and the formation together to form a complex that works together, so that it can effectively bear the tensile force and shear force, Anchor bolts in the prior art usually include an anchor head, a free section, and an anchor section. The bearing capacity of the anchor bolt mainly depends on the bond friction between the anchor piece, especially the anchor section, and the surrounding rock-soil medium. The section is only a straight line structure, often with limited friction, especially when the angle between the direction of force and the direction of the anchor is small, if the friction strength of the soil bond is low, it is often difficult to meet the design pullout force. requirements, therefore, there is a need for a geotechnical anchorage structure that can form bonded friction in multiple directions

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