Reinforcing system for preventing anchor rod and anchor cable from being corroded by sulphide ore leaching water
By injecting sulfate-resistant concrete into the anchor bolts and anchor holes and installing anti-erosion concrete bosses and rubber waterstops, the problem of anchor bolts and anchor cables being corroded by leaching water on sulfide mine slopes has been solved, achieving effective protection and extended service life for anchor bolts and anchor cables.
Patent Information
- Application Number
- CN202520095173.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Anchor bolts and cables are susceptible to corrosion by acidic leaching water on sulfide mine slopes, leading to rapid corrosion and safety hazards, and existing protection measures are ineffective in preventing them.
Sulfate-resistant concrete is poured between the anchor bolt and the anchor hole, and anti-water-erosion concrete bosses and rubber waterstops are installed around the anchor bolt to form a protective system to prevent direct contact with acidic leaching water.
It effectively prevents anchor bolts and anchor cables from being corroded by leaching water from sulfide minerals, extends their service life, and can improve their utilization rate by binding and reinforcing them when damaged.
Smart Images
Figure CN223907522U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sulphide ore mine unstable slope technical field relates to anchor rod and anchor cable, especially relates to a kind of reinforcing system for preventing anchor rod and anchor cable from being corroded by sulphide ore leaching water. BACKGROUND
[0002] At present, for unstable slope, reinforcing method mainly includes drainage engineering reinforcement, anti-slide pile reinforcement, anchor rod, anchor cable reinforcement, anti-slide retaining wall reinforcement, grouting support and mechanical reinforcement method etc. Among them, commonly used anchor rod and anchor cable reinforcing method, because anchor rod and anchor cable are generally steel material, a small amount of sulphide ore remains in sulphide ore mine slope, when rain, rainwater dissolves trace sulphide ore to generate acidic leaching water, the top of anchor rod and anchor cable is exposed without concrete protection, after being contaminated with acidic leaching water, electrochemical reaction occurs, greatly accelerates the corrosion rate of anchor rod and anchor cable, affects anchor rod and anchor cable strength, anchor rod and anchor cable will appear serious corrosion even fracture in general 3-5 years, produce safety hazard, and it brings great influence to economy and safety of slope protection.
[0003] In "rock and soil anchor rod and shotcrete support engineering technical specification" (GB50086-2015), permanent anchor rod in corrosive environment is designed with grade I anti-corrosion protection structure: "anchor head uses transition pipe, anchor tool is closed with concrete or protected with steel cover". But in use process, steel cover has gap, leaching water still contacts anchor rod and anchor cable through gap, and cannot play protection role. SUMMARY
[0004] In view of the deficiencies in the prior art, the utility model provides a kind of reinforcing system for preventing anchor rod and anchor cable from being corroded by sulphide ore leaching water to solve the technical problem that anchor rod and anchor cable in sulphide ore mine unstable slope are corroded by sulphide ore leaching water in prior art.
[0005] To solve the above technical problem, the utility model adopts the following technical scheme to realize:
[0006] A kind of reinforcing system for preventing anchor rod and anchor cable from being corroded by sulphide ore leaching water, including unstable slope, wherein, anchor hole is set on the unstable slope, anchor rod is installed in anchor hole, and anchor hole and anchor rod are grouted with concrete.
[0007] The slope surface of the unstable slope is provided with a water-impact-resistant concrete boss for protecting the anchor rod, a water-impact-resistant waterstop is arranged on the upper part of the water-impact-resistant concrete boss, one end of the water-impact-resistant waterstop is located in the water-impact-resistant concrete boss, and the other end of the water-impact-resistant waterstop is located outside the anchor rod.
[0008] One end of the anchor rod is located in the unstable slope, and the other end of the anchor rod is located between the water-impact-resistant concrete boss and the water-impact-resistant waterstop.
[0009] The utility model still has the following technical features:
[0010] The height of the anti-erosion concrete boss is 150mm, and the radius of the anti-erosion concrete boss is 125mm.
[0011] The anti-erosion water stop belt is a 635 type rubber water stop belt.
[0012] Compared with the prior art, the utility model has the following beneficial technical effects:
[0013] The utility model discloses a reinforcing system for preventing anchor rod and anchor cable from being corroded by sulfide ore leaching water, which can greatly avoid the corrosion and aging of the anchor rod and anchor cable caused by sulfide ore leaching water in unstable slope of sulfide ore mine, and prolongs the service life of the anchor rod and anchor cable, so as to solve the technical problem that the anchor rod and anchor cable are corroded by sulfide ore leaching water in unstable slope of sulfide ore mine in the prior art. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The utility model discloses a reinforcing system for preventing anchor rod and anchor cable from being corroded by sulfide ore leaching water, which can greatly avoid the corrosion and aging of the anchor rod and anchor cable caused by sulfide ore leaching water in unstable slope of sulfide ore mine, and prolongs the service life of the anchor rod and anchor cable, so as to solve the technical problem that the anchor rod and anchor cable are corroded by sulfide ore leaching water in unstable slope of sulfide ore mine in the prior art.
[0015] Figure 2 The utility model discloses a reinforcing system for preventing anchor rod and anchor cable from being corroded by sulfide ore leaching water, which can greatly avoid the corrosion and aging of the anchor rod and anchor cable caused by sulfide ore leaching water in unstable slope of sulfide ore mine, and prolongs the service life of the anchor rod and anchor cable, so as to solve the technical problem that the anchor rod and anchor cable are corroded by sulfide ore leaching water in unstable slope of sulfide ore mine in the prior art.
[0016] The meanings of various reference numerals in the drawings are as follows: 1 - unstable slope, 2 - anchor hole, 3 - anchor rod, 4 - anti-erosion concrete boss, 5 - anti-erosion water stop belt.
[0017] The utility model discloses a reinforcing system for preventing anchor rod and anchor cable from being corroded by sulfide ore leaching water, which can greatly avoid the corrosion and aging of the anchor rod and anchor cable caused by sulfide ore leaching water in unstable slope of sulfide ore mine, and prolongs the service life of the anchor rod and anchor cable, so as to solve the technical problem that the anchor rod and anchor cable are corroded by sulfide ore leaching water in unstable slope of sulfide ore mine in the prior art. DETAILED DESCRIPTION
[0018] It should be noted that all the devices and parts in the utility model, if not specially stated, all adopt the devices and parts known in the prior art.
[0019] According to the above technical scheme, the following specific embodiments of the utility model are given, and it should be noted that the utility model is not limited to the following specific embodiments, and any equivalent transformation based on the technical scheme of the application falls within the protection scope of the utility model.
[0020] Embodiment:
[0021] The utility model discloses a reinforcing system for preventing anchor rod and anchor cable from being corroded by sulfide ore leaching water, which can greatly avoid the corrosion and aging of the anchor rod and anchor cable caused by sulfide ore leaching water in unstable slope of sulfide ore mine, and prolongs the service life of the anchor rod and anchor cable, so as to solve the technical problem that the anchor rod and anchor cable are corroded by sulfide ore leaching water in unstable slope of sulfide ore mine in the prior art. Figure 1 And Figure 2As shown in
[0022] The concrete in this embodiment is mixed using a known sulphate-resistant pozzolanic Portland cement.
[0023] As shown in Figure 1 and Figure 2 As shown in
[0024] As shown in Figure 1 and Figure 2 As shown in
[0025] In this embodiment, the height of the water-impact-resistant concrete boss 4 is 150 mm, and the radius of the water-impact-resistant concrete boss 4 is 125 mm, so as to avoid the direct impact of downward-flowing acidic leaching water on the anchor rod 3. In addition, a 635-type rubber waterstop is embedded in the upper part of the water-impact-resistant concrete boss 4 to cover the anchor rod 3, and the 635-type rubber waterstop is kept 50 mm away from the edge of the concrete to avoid the splashing of acidic leaching water on the upper part of the slope from contaminating the anchor rod 3. The 635-type rubber waterstop used in this embodiment is a known 635-type rubber waterstop.
[0026] In this embodiment, it is preferable to punch a hole in the 635-type rubber waterstop embedded on the anchor rod 3 at the position where the support rope passes through the ring of the anchor rod 3, and then seal the hole with polyurethane sealant after the support rope is passed through. The steel wire rope net, the steel wire mesh and the support rope are made of known anti-corrosion plasticized steel wire ropes.
Claims
1. A reinforcement system for preventing corrosion of rock bolts and rock anchors by sulphide ore leachate, comprising an unstable slope (1), characterised in that, The anchor hole (2) is provided on the unstable slope (1), the anchor rod (3) is installed in the anchor hole (2), and the anchor hole (2) and the anchor rod (3) are filled with concrete grouting; The anti-impact water concrete boss (4) for protecting the anchor rod (3) is arranged on the slope surface of the unstable slope (1), the anti-impact water stop belt (5) is arranged on the upper portion of the anti-impact water concrete boss (4), one end of the anti-impact water stop belt (5) is located in the anti-impact water concrete boss (4), and the other end of the anti-impact water stop belt (5) is located outside the anchor rod (3). One end of the anchor rod (3) is located in the unstable slope (1), and the other end of the anchor rod (3) is located between the anti-impact water concrete boss (4) and the anti-impact water stop belt (5).
2. Reinforcement system to prevent the corrosion of the anchor rods and cables by the leaching water of sulphide mines, according to claim 1, characterized in that, The height of the anti-impact water concrete boss (4) is 150 mm, and the radius of the anti-impact water concrete boss (4) is 125 mm.
3. Reinforcement system to prevent the corrosion of the anchor rods and cables by the leaching water of sulphide mines, according to claim 1, characterized in that, The anti-impact water stop belt (5) is a 635 type rubber stop belt.