CN214577113U

CN214577113U - Earthquake recoverable function anchor cable

Info

Publication number: CN214577113U
Application number: CN202120491897.8U
Authority: CN
Inventors: 吴学震; 郑含芳; 罗雪松; 梁顺天
Original assignee: Fuzhou University
Current assignee: Fuzhou University
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-11-02
Anticipated expiration: 2031-03-09

Abstract

The utility model relates to an earthquake retrieval function anchor rope is applicable to the underground works field of strutting, include the anchor rope bundle of constituteing by a plurality of steel bundles, be located the anchor section of anchor rope bundle and be provided with the segmentation vesicle that the shell is brittle material along the axial interval, the inside prosthetic materials that contains of segmentation vesicle, anchor rope bundle and segmentation vesicle outer cladding have the two anchoring agent that makes the two form the complex body. The anchor cable solves the problems of anchor body fracture caused by shear dislocation of fractured rock mass after earthquake and anchor cable damage and corrosion caused by the fracture.

Description

Earthquake recoverable function anchor cable

Technical Field

The utility model relates to an earthquake recoverable function anchor rope is applicable to the underground works field of strutting.

Background

With the rapid development of social economy, the scale of the national infrastructure is enlarged day by day, and the rock-soil anchoring technology is rapidly developed. The anchor cable is more and more commonly applied to engineering due to the flexibility and reliability of the anchor cable in the anchoring field, and the anchor cable technology is adopted to anchor the rock-soil mass, so that the rock-soil mass can be fully utilized, the strength of the rock-soil mass and the capability of maintaining self stability are exerted, the slope stability is improved, engineering materials can be saved, and remarkable economic effect is achieved.

However, in China, the area is frequently earthquake-caused, large landslides or roadway cave collapses caused by earthquakes, and the failure of an anchoring system is accompanied. A plurality of cracks exist in the natural rock mass, when an earthquake occurs, the cracked rock mass is subjected to diastrophism due to vibration, the anchoring agent is cracked and damaged, and even the anchor cable is corroded when groundwater contacts the anchor cable through the cracks, so that the anchoring performance of the anchor cable is reduced. It is therefore increasingly important to ensure the stability of anchor lines in high-intensity areas.

Disclosure of Invention

An object of the utility model is to provide an earthquake restorable function anchor rope, this anchor rope have solved the fracture body that the fracture rock mass shearing dislocation caused after the shake breaks to and the anchor rope destruction and the corrosion problems that cause from this.

The technical scheme of the utility model lies in: an anchor cable with a function capable of being restored to earthquake comprises an anchor cable bundle composed of a plurality of steel bundles, segmented vesicles of which the shells are made of brittle materials are arranged in an anchoring section of the anchor cable bundle at intervals along the axial direction, repair materials are contained in the segmented vesicles, and anchoring agents enabling the anchor cable bundle and the segmented vesicles to form a complex body are coated outside the anchor cable bundle and the segmented vesicles.

Furthermore, the end of the anchoring section of the anchor cable bundle is provided with an anchor head which is fixedly connected with the steel bundle, the other end of the anchor cable bundle is provided with a tray through which the steel bundle passes, and an anchorage device is arranged on the steel bundle and outside the tray.

Further, the repair material is a single-liquid adhesive material.

Further, the repair material level is AB glue, two cavities are arranged in the segmented vesicle side by side, and A glue and B glue are respectively filled in the two cavities.

Further, the repair material is a water-swellable material, or the repair material is a combination of an adhesive material and a water-swellable material.

Further, the water-swellable material is a polyurethane resin material.

Further, a compression balloon is arranged in the segmented vesicle.

Further, the compression air bag is arranged at one end of the inner cavity of the segmented vesicle, or the compression air bag is arranged in the center of the segmented vesicle and is respectively provided with the repair materials at the upper side and the lower side of the compression air bag.

Further, the number of the segmented vesicles is not less than 5 or the length of each segmented vesicle is not more than 30 cm.

Compared with the prior art, the utility model has the advantages of it is following: the anchor cable automatically flows out through the repair material contained in the section vesicle or flows out under the extrusion of the expansion material, and permeates into the broken anchor body and the cracks of the surrounding rock mass, so that the effect of bonding repair can be achieved, the anchor cable can play a role of supporting again, and the problems of anchor body breakage caused by shear dislocation of the cracked rock mass after the earthquake and anchor cable damage caused by the fracture are solved. Meanwhile, underground water and air are prevented from contacting the anchor cable to avoid corrosion, and the service life of the anchor cable is prolonged. The repair material can also flow out in sections to carry out multiple targeted repairs.

Drawings

Fig. 1 is a schematic longitudinal section of a first embodiment of the anchor cable with the function of restoring earthquake;

fig. 2 is a schematic cross-sectional view of another embodiment of the anchor cable with earthquake recoverable function of the invention;

FIG. 3 is a schematic longitudinal section of the end airbag type segmented vesicle of the present invention;

FIG. 4 is a schematic longitudinal section of the center balloon type segmented vesicle of the present invention;

in the figure: 1-steel strand; 2-anchor head; 3-an anchorage device; 4-a tray; 5-an anchoring agent; 6-segmented vesicles; 7-a housing; 8-compressing the air bag; 9-repair material.

Detailed Description

In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.

Refer to fig. 1 to 4

An anchor cable with a function capable of being restored to earthquake comprises an anchor cable bundle consisting of a plurality of steel bundles 1, segmented vesicles 5 with shells 7 made of brittle materials are axially arranged in an anchoring section of the anchor cable bundle at intervals, a restoration material 9 is contained in the segmented vesicles, and an anchoring agent 5 enabling the anchor cable bundle and the segmented vesicles to form a complex is coated outside the anchor cable bundle and the segmented vesicles.

In this embodiment, the end of the anchoring section of the anchor rope bundle is provided with an anchor head 2 fixedly connected with the steel bundle, respectively, the other end of the anchor rope bundle is provided with a tray 3 for the steel bundle to pass through, respectively, and the steel bundle is provided with an anchorage device 3 outside the tray.

In this embodiment, the repair material is a single-liquid adhesive material or an AB adhesive. When the repair material adopts AB glue, two cavities are arranged in the segmented vesicle side by side, the two cavities are respectively filled with A glue and B glue, and after the segmented vesicle is extruded and broken, the A glue and the B glue are mixed to play roles of cementing and isolating water.

In this embodiment, the repair material is a water-swellable material, and the water-swellable material is a polyurethane material or the like. When the polyimide resin material meets water, a correlation reaction is generated, expansion is generated, and the polyimide resin material is pressed into a fracture area of the anchoring body and a rock body gap under the action of expansion pressure.

In this embodiment, the repair material may also be a combination of an adhesive material and a water-swellable material, and the water-swellable material is a polyurethane material or the like. When the water-swellable material swells after encountering water, the adhesive material is extruded into the fracture area of the anchoring body and the rock body gap, and the broken anchoring body is bonded by the adhesive material to play the anchoring role again and isolate underground water and air.

In this embodiment, a compression air bag (see fig. 3) is disposed at one end of the inner cavity of the segmented vesicle, and the compression air bag is abutted against the outer shell, so that after the segmented vesicle is locally damaged by being squeezed, the compression air bag expands to extrude the repair material.

In this embodiment, a compression airbag is disposed in the center of the inner cavity of the segmented vesicle, repair materials are disposed on the upper and lower sides of the compression airbag, and two ends of the compression airbag are respectively abutted to the outer shell (see fig. 4), so that after the segmented vesicle is locally damaged by extrusion, the compression airbag expands to extrude the repair materials.

In this embodiment, in order to ensure the repairing effect, the number of the segmented vesicles is not less than 5 or the length of each segmented vesicle is not more than 30 cm.

The working principle of the anchor cable is as follows: when an earthquake occurs, the fractured rock mass is dislocated, so that the anchoring agent is cracked and damaged, the segmented vesicle is damaged, the repairing material contained in the segmented vesicle automatically or extruded by the expansion material flows out and permeates into the fractured anchoring body and the fractures of the surrounding rock mass, the bonding and repairing effects can be achieved, the anchor rope can exert the supporting effect again, meanwhile, underground water and air are prevented from contacting the anchor rope to avoid corrosion, and the service life of the anchor rope is prolonged. The repair material can also flow out in sections to carry out multiple targeted repairs.

When the anchor cable with the earthquake restorable function is used, firstly, an anchor hole is drilled in a rock body to be supported, and the diameter of the anchor hole is larger than that of the anchor cable bundle; after hole cleaning is finished, sequentially penetrating the steel bundles, and placing the segmented vesicles in the middle of an anchor cable bundle consisting of the steel bundles; anchoring the anchor rope bundle and the segmented vesicle complex in the anchor hole by using an anchoring agent, and forming an anchoring body after the anchoring agent is solidified; and tensioning and locking the outer anchoring end of the steel bundle through the tray and the anchorage device to finish the initial installation of the anchor cable.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. An anchor cable with a function capable of being restored to earthquake is characterized by comprising an anchor cable bundle consisting of a plurality of steel bundles, segmented vesicles of which the shells are made of brittle materials are arranged in an anchoring section of the anchor cable bundle at intervals along the axial direction, a repairing material is contained in the segmented vesicles, and an anchoring agent enabling the anchor cable bundle and the segmented vesicles to form a complex body is coated outside the anchor cable bundle and the segmented vesicles.

2. The anchor cable with the earthquake recoverable function as claimed in claim 1, wherein the anchoring section end of the anchor cable bundle is provided with an anchor head fixedly connected with the steel bundle, the other end of the anchor cable bundle is provided with a tray for the steel bundle to pass through, and an anchorage device is arranged on the steel bundle and outside the tray.

3. The seismic recoverable function anchor cable of claim 1 or claim 2, wherein the repair material is a single-fluid mastic material.

4. The anchor cable with the function capable of restoring the earthquake as claimed in claim 1 or 2, wherein the repair material is AB glue, two cavities which are arranged side by side are arranged in the segmented vesicle, and the two cavities are respectively filled with the A glue and the B glue.

5. The anchor cable of claim 1 or 2, wherein the repair material is a water-swellable material, or a combination of an adhesive material and a water-swellable material.

6. The anchor cable with the earthquake recoverable function as claimed in claim 5, wherein the water-swellable material is a polyurethane material.

7. The seismic recoverable function anchor rope of claim 1 or 2, wherein the segmented vesicle has a compression balloon disposed therein.

8. The anchor cable with the earthquake recoverable function as claimed in claim 7, wherein the compression air bag is arranged at one end of the inner cavity of the segmented vesicle, or the compression air bag is arranged at the center of the segmented vesicle and is respectively provided with the repair materials at the upper side and the lower side of the compression air bag.

9. The anchor cable with seismic recoverable functions of claim 7, wherein the number of the segmented vesicles is not less than 5 or the length of each segmented vesicle is not more than 30 cm.