Anchor construction method

Abstract

The invention discloses a novel anchor rod, and belongs to the technical field of anchor rods to solve the problem that an existing anchor rod is poor in anchoring performance. The novel anchor rod comprises an anchor rod body in a hollow tubular shape, and the upper end and the lower end of the anchor rod body are open. At least two opening grooves are evenly formed in the bottom of the anchor rod body. The bottom of the anchor rod body is divided into a plurality of anchoring supporting pieces through the opening grooves. A baffle connected with the anchor rod body is arranged on the top of the anchor rod body. A base plate is arranged between the baffle and the anchor rod body and arranged on the top of the anchor rod body in a sleeving manner. According to the novel anchor rod, the procedure that a blasting explosive enabling a pipe wall to be blasted and deform is arranged at the bottom of the anchor rod body is omitted, and damage to an anchor rod structure when the explosive is blasted and the pipe wall is expanded is avoided. During using, hole expanding is conducted through the blasting explosive firstly, the bottom of the anchor rod deforms and is expanded through grouting, and therefore the bearing force of the bottom of the anchor rod is improved. The invention further provides a construction method for the anchor rod. By means of the method, the anchoring performance of the anchor rod structure can be brought into full play.

Description

technical field [0001] The invention belongs to the technical field of anchor rods, and relates to an anchor member used for slope construction, in particular to a concrete construction method of an anchor rod capable of improving anchoring stability. Background technique [0002] Anchor, as a kind of fixing part, has been widely used in reinforcement projects such as tunnel support, rock slope support, foundation pit support and dam support. The tensile capacity of the soil is much lower than the lack of compressive capacity. [0003] There is a problem in the existing anchor rods, whether they are hollow, threaded or with positioning plates, that is, the overall shape of the anchor rod is slender, and it is mainly through the friction between the rod body after grouting and solidification and the surrounding rock and soil. (resistance) to solve the problem of low tensile capacity of rock and soil, thereby greatly enhancing the bearing capacity of rock and soil. However, ...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem of low bearing capacity at the end of conventional anchor rods in the prior art, the present invention provides an anchor rod that can greatly improve anchoring stability

[0008] The purpose of the present invention is to solve the problem of insufficient bearing capacity at the end of conventional anchors, and to provide an anchor that can improve the anchoring stability of the anchor. During the installation process, the anchor is first reamed by explosives, and then grouted to make the bottom of the anchor The deformation expands, thereby improving the bearing capacity of the bottom of the anchor. The two operations are carried out separately to ensure that the stability of the anchor structure will not be damaged during the explosive reaming of the anchor hole. Moreover, the reaming process is carried out separately, and the implementation process can be carried out according to the slope. Soil conditions, slope inclination, anchor depth and other parameters are used to determine the amount of explosives, so that the anchoring performance of the anchor can be maximized

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