CN203462467U - Anchoring device for geotechnical engineering - Google Patents

Abstract

The utility model discloses an anchor device for geotechnical engineering, which comprises an anchor head and an anchor rod connected with the anchor head. The wing plate and the anchor point arranged at the end of the steel pipe, the anchor point is provided with a "cross" groove for inserting the drill pipe near the end of the rotating wing plate. The rotating wing plate of the utility model is arranged around the steel pipe, which can quickly rotate the whole anchor nail deep into the soil, saves time and effort, and can provide greater pull-out resistance; ""-shaped groove, which is convenient for the drill pipe to be inserted into the groove, and the drill pipe is firmly fixed in the steel pipe to quickly screw the anchor into the soil.

Description

An anchor device for geotechnical engineering

technical field

The utility model relates to an anchor device, in particular to an anchor device for geotechnical engineering, which belongs to the technical field of geotechnical engineering.

Background technique

At present, the development of underground space has become the trend of urban development, which brings a lot of geotechnical engineering problems such as foundation pit support, slope treatment, and basement anti-floating. The common point of these problems is the need to provide sufficient pullout resistance. In the existing foundation pit support and slope treatment, anchors are mainly used to provide pullout resistance. These anchors need a series of processes such as pre-forming holes, inserting pullout-resistant steel bars, and grouting. Problems such as hole collapse and grouting pressure leakage are prone to occur during the construction process. Especially in some shallow foundation pits, low slopes and other projects that require low pullout resistance, the above-mentioned construction process is complicated and unfavorable to the construction progress. In the existing anti-floating basement, the anti-lift piles and anti-floating anchors are mainly used to provide the pull-out force. Similarly, the construction technology is complicated and slow for the shallow basement that requires a small pull-out force. .

Utility model content

The technical purpose of the utility model is to provide a fast and efficient anti-lifting method for rock and soil in view of the shortcomings of existing anti-uplift measures in shallow foundation pits, low slopes and shallow basement projects that require less uplift resistance. Engineering anchors.

The technical scheme of the utility model is: an anchor device for geotechnical engineering, including an anchor head and an anchor rod connected with the anchor head, characterized in that the anchor head is located at the end of the anchor nail, including a steel pipe 1. The rotating wing plate rotated around the steel pipe and the anchor point arranged at the end of the steel pipe. The anchor point is provided with a "cross" groove for inserting the drill pipe near the end of the rotating wing plate. the

Further technical solutions are:

The rotating wing of the anchor head is a solid metal body of equal diameter with two circles of thick inside and thin outside. Driven by the rotation of the construction drill pipe, it is beneficial to rotate the whole anchor screw deep into the soil. the

The anchor point is in the shape of a solid pointed cone, and the anchor point is inserted into the soil, which is beneficial to the fixing of the whole anchor.

The anchor rod is a steel pipe, and the steel pipe is provided with holes arranged in a quincunx pattern, which is convenient for rapid grouting in the later stage and increases the strength of the soil around the anchor rod.

The anchor head and the anchor rod are integrally formed, or the anchor head and the anchor rod are connected through a threaded casing.

The beneficial effects of the utility model are: the rotating wing is set around the steel pipe, and the whole anchor can be quickly rotated deep into the soil, saving time and effort, and can provide greater pull-out resistance; the anchor tip is close to the end of the rotating wing There is a "ten"-shaped groove, which is convenient for the drill pipe to be inserted into the groove, and the drill pipe is firmly fixed in the steel pipe to quickly screw the anchor into the soil.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a schematic cross-sectional view of the structure of the anchor head of the present utility model;

Fig. 3 is a schematic cross-sectional view of the structure of the anchor point of the utility model;

Fig. 4 is A-A sectional view among Fig. 3;

Fig. 5 is a schematic diagram of the connection structure between the anchor head and the anchor rod through the threaded casing of the present invention.

Detailed ways

In order to clarify the technical scheme and technical purpose of the utility model, the utility model will be further introduced below in conjunction with the accompanying drawings and specific implementation methods.

As shown in FIGS. 1 to 5 , an anchor device for geotechnical engineering includes an anchor head 1 and an anchor rod 2 .

The above-mentioned anchor head 1 includes:

1) Anchor tip 3: Located at the end of anchor head 1, it is set as a solid pointed cone. During construction, this section is inserted into the soil first, which is beneficial to the fixation of the entire anchor; the solid anchor tip 3 is close to the end of the rotating wing plate 4 A "ten"-shaped groove 6 is provided for inserting the drill pipe so as to screw the anchor into the soil.

2) Rotating wing plate 4: located on the upper part of the anchor tip 3, it is cast together with the steel pipe 5 of the anchor head 1, and rotates around the steel pipe 5 for two turns. Driven, it is beneficial to rotate the whole anchor screw deep into the soil.

The above-mentioned anchor rod 2 includes: the hole 7 arranged on the anchor rod 2 is arranged in a quincunx shape, which is convenient for grouting in the later stage and increases the strength of the soil around the anchor rod.

In the anchor device of the present utility model, the anchor head 1 and the anchor rod 2 are integrally formed (see Figure 1), and the anchor head 1 and the anchor rod 2 can also be connected through a threaded casing 8, and the anchor head 1 And anchor rod 2 is provided with the screw thread 9 that cooperates with sleeve pipe 8. An anchor head 1 and an anchor rod 2 of a certain length obtained through design and calculation are connected through a casing 8 with threads 9 (see Figure 5).

For a geotechnical project that needs to provide pull-out resistance, the length of the anchor rod 2 can be obtained through design calculations, and then it can be connected to the anchor head 1 with a threaded casing 8 to form an anchor, and a specific length can also be produced ( Such as 2 meters, 3 meters, 4 meters, 5 meters, etc.) for design and selection of anchors. During construction, the anchor is fixed in the soil through the anchor point 3, and the drill pipe with a "ten"-shaped convex groove is inserted into the "ten"-shaped groove 6 at the anchor point 3, and the drill pipe is rotated, while The anchor is transferred into the soil by means of the rotating wing plate 4, and then the cement slurry is injected into the surrounding soil of the anchor through the hole 7 on the anchor rod 2, so as to increase the strength of the surrounding soil and improve the pullout resistance of the anchor.

The utility model has been disclosed above with preferred embodiments, but it is not intended to limit the utility model, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation methods fall within the protection scope of the utility model.

Claims (6)

1. An anchor device for geotechnical engineering, comprising an anchor head and an anchor rod connected with the anchor head, is characterized in that, the anchor head is positioned at the end of the anchor nail, comprises a steel pipe, a steel pipe that rotates around the steel pipe The rotating wing plate and the anchor point arranged at the end of the steel pipe, the anchor point is provided with a "cross" groove for inserting the drill pipe near the end of the rotating wing plate. 2 . The anchor device for geotechnical engineering according to claim 1 , wherein the rotating wing plate of the anchor head is a solid metal body of equal diameter with two circles of thick inside and thin outside. 3 . 3 . The anchor device for geotechnical engineering according to claim 1 , wherein the anchor point is in the shape of a solid pointed cone. 4 . 4 . The anchor device for geotechnical engineering according to claim 1 , wherein the anchor rod is a steel pipe, and the steel pipe is provided with holes in a quincunx arrangement. 5. The anchor device for geotechnical engineering according to any one of claims 1-4, wherein the anchor head and the anchor rod are integrally formed. 6. A kind of anchor device for geotechnical engineering according to any one of claims 1-4, characterized in that, the anchor is formed by connecting the anchor head and the anchor rod through a threaded casing .

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