Multifunctional high-wear-resistance anchor head system

Abstract

The invention discloses a multifunctional high-wear-resistance anchor head system. The multifunctional high-wear-resistance anchor head system comprises an anchor rod, an anchor head, an SNS flexibleprotection screen and a pre-expansion structure body, wherein an anchor ingot plate is welded to the anchor head; an opening is formed in the anchor ingot plate; and the anchor rod penetrates throughthe opening of the anchor ingot plate, and the pre-expansion structure body is poured around the anchor rod and in the anchor head. The product can be prefabricated in a factory or on site in advance,the pre-expansion structure body can be directly poured after on-site installation, and the construction period is short; according to the product, through using self-expansion fine aggregate concrete for pouring, a large pre-pressure can be formed between the anchor ingot plate and a slope surface, and the close connection of the anchor head and the slope surface is realized, and through using self-expansion fine aggregate concrete for pouring, the construction quality of anchor head concrete can be ensured, and the use durability is improved; according to the product, connection between theSNS flexible protection screen and the anchor rod is facilitated, and even if the protection screen needs to be replaced in the later period, the protection screen can also be connected through a steel plate exposed to the anchor head, so that the anchoring effect is achieved; and according to the product, the anchor head is internally filled with expansion concrete and externally wrapped with the steel plate, so that more effective constraint on the slope surface is achieved.

Description

technical field [0001] The invention relates to the field of anchor heads, in particular to a multifunctional high corrosion-resistant anchor head system. Background technique [0002] With the increasing construction of national infrastructure, the number of slope projects is increasing. Most of the traditional rock slope support adopts the support form of bolt + concrete shotcrete or bolt + lattice beam. However, this kind of support type has a large area of ​​concrete exposed surface, and the landscape effect is extremely poor. With the improvement of people's environmental protection concept and aesthetics, the support methods have been developing towards the ecological type in recent years, and the above support methods are no longer applicable in many places. , As a kind of rock slope support, the support type of anchor rod, SNS flexible protection net and slope greening has been applied in a large area due to the good greening effect. This kind of support type cancels...

AI Technical Summary

Problems solved by technology

[0003] The main causes of anchor head corrosion are as follows: First, the anti-corrosion method of retaining wall, anchor rod, anchor head and anchor spindle plate is mainly to directly paint anti-rust paint or wrap it with pouring concrete, and directly paint anti-rust paint. During this period, it is easy to cause damage to the paint surface, and the paint surface is easy to age, so the corrosion resistance is poor; for the anchoring method using concrete wrapping, because the anchor head concrete and the slope cannot form a strong bond, it is easy to form a weak surface, and it is easy to form a weak surface. The position of the contact surface is prone to corrosion in alternating environments, resulting in corrosion of the anchor plate and the anchor rod; second, the exposed parts of the anchor head are small and large in number. If ordinary concrete is used for protection, the concrete is difficult to form due to the small anchor head Difficult, prone to shrinkage cracking, honeycomb pockmarks, etc., which greatly reduces its protective effect and causes corrosion of anchor rods

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