Slope supporting and reinforcing device

Abstract

The utility model discloses a slope supporting and reinforcing device, and mainly relates to the field of surface mine safety. Comprising platform anchor rods, a baffle, a pull-up anchor cable and a pull-down anchor cable, the baffle covers a slope surface, the platform anchor rods are vertically inserted into a platform above the slope surface in the extension direction of the slope surface, the pull-up anchor cable and the pull-down anchor cable are used for being inserted into the slope surface, the pull-up anchor cable is perpendicularly arranged relative to the baffle, and the pull-down anchor cable is perpendicularly arranged relative to the baffle. The outer end of the upward-pulling anchor cable is fixed to the upper portion of the baffle, the outer end of the downward-pulling anchor cable is fixed to the lower portion of the baffle, and the bottom end of the platform anchor rod is fixed to the inner end of the upward-pulling anchor cable and / or the inner end of the downward-pulling anchor cable. The utility model has the beneficial effects that the restraining capability on the surface layer of the slope surface is improved, and the reinforcing effect of the side slope is improved.

Description

Technical Field

[0001] The utility model relates to the field of open-pit mine safety, in particular to a slope support and reinforcement device. Background Art

[0002] Slope is one of the important components of open-pit mining. It is a slope that is inclined towards the mining area and is composed of steps and transportation pit lines. It runs through the entire mining activity. Maintaining a stable slope and step surface is a prerequisite for safe mining operations.

[0003] Due to the huge differences in engineering geological conditions, rock properties, weathering and other natural conditions in different mining areas, as well as the changes in sand or rock layers due to different excavation depths, the maintenance of the slope is very complicated. Existing support methods include mechanical reinforcement of slopes, which mainly use anchor rods to anchor the slopes, disperse the stress to the surrounding rock, and achieve slope reinforcement. It is usually used in combination with steel mesh or concrete. However, for some loose areas, the slope is easily deformed under the action of rainfall, weathering, stress, etc., and the existing anchor rod facilities are easy to loosen, which has a poor effect on the contraction of the slope. Utility Model Content

[0004] The utility model aims to provide a slope support and reinforcement device, which improves the restraining ability of the slope surface layer and improves the reinforcement effect of the slope.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A slope support reinforcement device includes a platform anchor rod, a baffle, an upper pull anchor cable and a lower pull anchor cable.

[0007] The baffle plate covers the slope surface, the platform anchor rods are multiple and vertically inserted into the platform above the slope surface along the extension direction of the slope surface, the upper pull anchor cable and the lower pull anchor cable are used to insert into the slope surface respectively, the upper pull anchor cable is vertically arranged relative to the baffle plate, the outer end of the upper pull anchor cable is fixed to the upper part of the baffle plate, the outer end of the lower pull anchor cable is fixed to the lower part of the baffle plate, and the bottom end of the platform anchor rod is fixed to the inner end of the upper pull anchor cable and / or the inner end of the lower pull anchor cable.

[0008] When the bottom end of the platform anchor rod is fixed to the inner end of the upper pull anchor cable or the inner end of the lower pull anchor cable, the upper pull anchor cable and the lower pull anchor cable are alternately arranged along the extension direction of the slope surface.

[0009] A U-shaped steel fork is provided at the bottom end of the platform anchor rod, with the fork of the steel fork pointing downward. The upper pull anchor cable and the lower pull anchor cable both include double steel cables arranged in parallel. One end of the two steel cables used for drilling into the soil is provided with a bending portion and is connected by the bending portion. The steel fork is inserted into the bending portion and is wound around the inner end of the steel cable by rotation.

[0010] The upper part of the platform anchor rod is provided with a special-shaped portion with a rectangular cross-section, and the special-shaped portion is a straight column with a non-circular cross-section. The upper part of the anchor rod is provided with a fixing fork movably connected to its top, and the middle part of the fixing fork is provided with a socket adapted to the cross-section of the special-shaped portion, and both sides of the fixing fork are plugs extending downward.

[0011] The top of the platform anchor rod is provided with an external thread, and the top end of the platform anchor rod is provided with a cap head which is threadedly connected thereto, and the cap head is hexagonal or square.

[0012] It also includes a pressure tube movably sleeved with the platform anchor rod, the top end face of the pressure tube contacts the bottom face of the cap head, the bottom end face of the pressure tube contacts the top side of the fixed fork, and the pressure tube is clearance-matched with the special-shaped part.

[0013] A row of equally spaced fixings is provided on the upper part of the baffle, and a row of equally spaced fixings is provided on the lower part of the baffle. The fixings are penetrated by through holes for passing the upper pull anchor cable or the lower pull anchor cable. The outer ends of the upper pull anchor cable and the lower pull anchor cable are respectively fixed with wire locks, and the wire locks are blocked outside the through holes.

[0014] The upper pull anchor cable or the lower pull anchor cable is sleeved with a plastic insert tube on the outside, and the length of the insert tube is adapted to the length of the upper pull anchor cable or the lower pull anchor cable.

[0015] The pull-down anchor cable is arranged below the pull-up anchor cable and the pull-down anchor cable and the baffle plate form an angle between 35 and 45 degrees.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This device achieves better fixation by inserting the platform anchor rod into the platform at the top of the slope, reducing the impact of slope deformation or looseness on anchor rod fixation. At the same time, the platform anchor rod is used to restrain the slope anchor cable to constrain the baffle inward and upward, thereby achieving better reinforcement of the upper and middle parts of the slope, which can effectively improve the slope support effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the application state of the utility model.

[0019] Figure 2 It is a schematic diagram of each platform anchor rod of the utility model cooperating with an upper pull anchor cable and a lower pull anchor cable.

[0020] Figure 3 It is a schematic diagram of each platform anchor rod of the utility model cooperating with an upper pull anchor cable and a lower pull anchor cable.

[0021] Figure 4 It is a schematic diagram of the utility model platform anchor rod alternately cooperating with the upper pull anchor cable and the lower pull anchor cable.

[0022] Figure 5 It is a schematic diagram of the cooperation between the platform anchor rod of the utility model and the upper pull anchor cable and the lower pull anchor cable.

[0023] Figure 6 This utility model Figure 5 Enlarged view of part E.

[0024] Figure 7 This utility model Figure 3 Enlarged view of part F.

[0025] Figure 8 This utility model Figure 3 Enlarged view of the G section.

[0026] Fig. 9 It is a schematic diagram of the internal structure of the slope in the application of the utility model.

[0027] Numbers shown in the accompanying drawings:

[0028] 1. Platform anchor rod; 2. Steel fork; 3. Special-shaped part; 4. Fixed fork; 5. Plug; 6. Cap head; 7. Pressure tube; 8. Upper pull anchor cable; 9. Lower pull anchor cable; 10. Steel cable; 11. Bending part; 12. Wire locker; 13. Through hole; 14. Locking column; 15. Insertion tube; 16. Baffle; 17. Fixing parts. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0030] like Figure 1-9 As shown, the main components of the device include several: platform anchor rod 1, upper anchor cable 8, lower anchor cable 9, baffle 16; these components are used in combination, mainly for reinforcing the upper slope surface of the slope. The baffle 16 is covered on the slope surface, the platform anchor rod 1 is anchored near the edge of the platform, and the upper anchor cable 8 and the lower anchor cable 9 are inserted and fixed in the slope surface. The specific structure of each component is as follows:

[0031] Platform anchor 1: The platform anchor 1 is used for vertical self-anchoring on the slope top platform. A U-shaped steel fork 2 is provided at the bottom end of the platform anchor 1. The fork of the steel fork 2 is downward. The steel fork 2 is welded and fixed to the bottom end of the anchor. A special-shaped portion 3 with a rectangular cross-section is provided on the upper part of the anchor. The non-circular cross-section makes it easy to cooperate with tools and facilitate the rotation construction operation of the anchor.

[0032] During construction, tools such as pipe clamps can be used to clamp the special-shaped portion 3 for rotation, so that the anchor rod rotates in the drill hole.

[0033] After the anchor rod is anchored, the hole can be sealed with concrete or filled with soil and compacted.

[0034] At the same time, in order to facilitate the operation and fixation of the anchor rod, some accessories can be added to the top of the anchor rod, including a fixing fork 4, a cap head 6, and a pressing tube 7.

[0035] The fixing fork 4 is a metal part of a gate-shaped structure, and a socket adapted to the cross-section of the special-shaped portion 3 is provided in the middle of the fixing fork 4, and plugs 5 extending downward are provided on both sides of the fixing fork 4. By inserting the socket of the fixing fork 4 into the anchor rod to reach the position of the special-shaped portion 3, the fixing fork 4 and the anchor rod can be rotated by holding the plugs 5 on both sides of the gate-shaped structure. After the rotation is completed, the fixing fork 4 is hammered downward to be inserted into the soil, thereby limiting the circumferential position of the anchor rod.

[0036] The top of the anchor rod exposed above the soil surface can be cut off, and if it is for the convenience of maintenance and removal, it can also be blocked with a cap head 6, which is threadedly connected to the top of the anchor rod to avoid the hidden dangers that may be caused by the protruding rod head. The cap head 6 is hexagonal in shape, with an internal screw hole running through the center, and an external thread is set on the top of the anchor rod to achieve structural matching.

[0037] If the soil surface is too loose and the fixing effect of the fixing fork 4 inserted into the surface is not good, a pressure tube 7 can be added between the fixing fork 4 and the cap head 6. The pressure tube 7 is in clearance fit with the special-shaped portion 3 and can pass through the special-shaped portion 3. The diameter of the pressure tube 7 is smaller than the cap head 6. When the cap head 6, the pressure tube 7 and the fixing fork 4 are sequentially sleeved on the top of the anchor rod from top to bottom, the rotating cap head 6 is threadedly connected with the top of the anchor rod, and the fixing fork 4 can be deeply inserted into the soil through the pressure tube 7. The insertion depth of the fixing fork 4 is increased by the length of the pressure tube 7, thereby maximizing the stability of the insertion and fixing of the fixing fork 4.

[0038] The upper pull anchor cable 8 and the lower pull anchor cable 9 adopt similar structures, both of which include and are arranged with two steel cables 10. The ends of the two steel cables 10 used for drilling into the soil are connected and provided with a bending portion 11. The ends of the two steel cables 10 exposed outside the slope are bent and fixed by a wire locker 12. The wire locker 12 can adopt the existing wire locker 12 matched with the steel cable 10, which is mainly used to reinforce and fix the end of the steel cable 10. The wire locker 12 can adopt a double nose structure, which is a metal component as a whole, and passes through two through holes 13. The two through holes 13 are used to pass through the steel cable 10 respectively, and one end of the steel cable 10 is passed through the two through holes 13 in sequence to achieve double locking. The two ends of the wire locker 12 are respectively provided with threaded holes connected to the through holes 13, and the inner threads of the threaded holes are matched with locking columns 14. The inner ends of the locking columns 14 are tightly locked with the steel cable 10. Multiple wire lockers 12 can be installed on the outer end of a steel cable 10 as needed.

[0039] Specifically, a complete steel cable 10 can be used, folded in the middle to obtain a bent portion 11, and the bent portion 11 at the connecting end can be inserted into the inclined hole punched on the slope. In order to maintain the inserted shape, a plastic insert tube 15 can be sleeved on the outside of the steel cable 10. The inner cavity of the insert tube 15 can accommodate two steel cables 10. The length of the insert tube 15 is adapted to the length of the steel cable 10. The insert tube 15 is a plastic tube with an elliptical cross-section, which is more suitable for accommodating double steel cables 10. The bends at the inner ends of the two steel cables 10 are exposed to the outside of the plastic tube, and can naturally form an arc structure based on stress, which facilitates the insertion of the steel fork 2.

[0040] The upper pull anchor cable 8 is perpendicular to the steel plate and the slope surface, and the lower pull anchor cable 9 is arranged below the upper pull anchor cable 8 and the lower pull anchor cable 9 forms an angle between 35-45 degrees with the steel plate and the slope surface.

[0041] The steel fork 2 at the bottom end of the platform anchor rod 1 is inserted into the bent portion 11 at the inner end of the upper anchor cable 8, and the steel fork 2 tightens the bent portion 11 by winding.

[0042] Alternatively or in addition, the steel fork 2 at the bottom end of the platform anchor rod 1 is inserted into the bent portion 11 at the inner end of the pull-down anchor cable 9, and the steel fork 2 tightens the bent portion 11 by winding.

[0043] Baffle 16: The baffle 16 is made of a flat steel plate. The baffle 16 is used to cover the slope surface with pressure. The baffle 16 is provided with two rows of fixings 17, which are used to fix the outer end of the steel cable 10. In this example, the fixings 17 are welded on the steel plate with thickened steel plates to improve the strength. The fixings 17 are penetrated with two through holes, which are used to penetrate the steel cable 10. The fixings 17 in the upper row are used to penetrate and fix the outer end of the steel cable 10 of the upper pull anchor cable 8, and the outer end is blocked outside the baffle 16 by the wire locker 12. The fixings 17 in the lower row are used to penetrate and cooperate with the outer end of the steel cable 10 of the lower pull anchor cable 9, and the outer end is blocked outside the baffle 16 by the wire locker 12.

[0044] Based on the above structure, the usage is further explained as follows:

[0045] Drill vertical anchor holes downwards near the slope of the platform; if the soil is loose, you can also drive the anchor directly downwards;

[0046] Drill rows of holes on the upper vertical slope surface, with the inner ends of the holes connected to the bottom ends of the anchor holes;

[0047] Drilling holes in a row on the slope surface in an upward tilted manner, wherein the inner ends of the holes in the row are connected to the bottom ends of the anchor holes;

[0048] According to the depth of the upper row of holes and the lower row of holes, the steel strands are cut and bent into pairs to obtain upper and lower anchor cables 8 and 9 of corresponding lengths;

[0049] Place the upper anchor cable 8 into the upper row of holes with the bent portion 11 inside, so that the bent portion 11 of the upper anchor cable 8 is located at the bottom of the anchor hole, and pass the two steel cables 10 at the outer ends of the upper anchor cable 8 through the corresponding upper row of through holes on the baffle 16, and install the wire lock 12;

[0050] Place the lower anchor cable 9 into the lower row of holes with the bent portion 11 inside, so that the bent portion 11 of the upper anchor cable 8 is located at the bottom end of the anchor hole, and pass the outer ends of the two steel cables 10 of the lower anchor cable 9 through the corresponding lower row through holes on the baffle 16, and install the wire lock 12;

[0051] The steel fork 2 at the bottom end of the anchor rod is inserted into the bent portion 11, and the anchor rod is rotated to wind and tighten the inner end of the steel cable 10, so that the steel cable 10 is tensioned, thereby exerting a pulling force on the baffle 16 to pull inward.

[0052] In the above installation, you can choose to use each anchor rod in conjunction with an upper pull anchor cable 8 or a lower pull anchor cable 9, and the upper pull anchor cables 8 and the lower pull anchor cables 9 are distributed alternately to achieve an inward and upward pulling effect on the baffle 16 in alternating dimensions. You can also choose to use the bottom end of each anchor rod to cooperate with the upper pull anchor cable 8 and the lower pull anchor cable 9 at the same time to increase the restraint effect.

[0053] Through the above-mentioned support structure, the steel cable 10 is tensioned by winding the inner end of the steel cable 10 by the bottom end of the anchor rod, so that the steel cable 10 pulls the baffle 16 inward to achieve the inward push of the slope. The vertical inward action on the baffle 16 is achieved by pulling up the anchor cable 8, and the upward pull of the lower part of the steel plate, that is, the middle part of the slope, is achieved by pulling down the anchor cable 9, so that the slope surface is loose and deformed, and the top is easy to loosen, and the deformation accumulates in the middle. Strengthen the support and fixation, improve the fixing effect of the slope surface. At the same time, the pull-down anchor cable 9 also has the force to pull the anchor rod downward, which can constrain the anchor rod and enhance the fixation of the anchor rod.

[0054] The entire supporting structure achieves multi-dimensional fixation of the slope through a composite triangular structure. The upper pull anchor cable 8 and the lower pull anchor cable 9 can be used together or alternately, which is flexible and convenient to use, and can be easily removed and dismantled if maintenance is required.

Claims

1. A slope support and reinforcement device, characterized in that: It includes a platform anchor rod, a baffle, an upper pull anchor cable and a lower pull anchor cable, the baffle plate covers the slope surface, the platform anchor rods are multiple and vertically inserted into the platform above the slope surface along the extension direction of the slope surface, the upper pull anchor cable and the lower pull anchor cable are used to insert into the slope surface respectively, the upper pull anchor cable is vertically arranged relative to the baffle plate, the outer end of the upper pull anchor cable is fixed to the upper part of the baffle plate, the outer end of the lower pull anchor cable is fixed to the lower part of the baffle plate, and the bottom end of the platform anchor rod is fixed to the inner end of the upper pull anchor cable and / or the inner end of the lower pull anchor cable.

2. A slope support and reinforcement device according to claim 1, characterized in that: When the bottom end of the platform anchor rod is fixed to the inner end of the upper pull anchor cable or the inner end of the lower pull anchor cable, the upper pull anchor cable and the lower pull anchor cable are alternately arranged along the extension direction of the slope surface.

3. A slope support and reinforcement device according to claim 1, characterized in that: A U-shaped steel fork is provided at the bottom end of the platform anchor rod, with the fork of the steel fork pointing downward. The upper pull anchor cable and the lower pull anchor cable both include double steel cables arranged in parallel. One end of the two steel cables used for drilling into the soil is provided with a bending portion and is connected by the bending portion. The steel fork is inserted into the bending portion and is wound around the inner end of the steel cable by rotation.

4. A slope support and reinforcement device according to claim 3, characterized in that: The upper part of the platform anchor rod is provided with a special-shaped portion with a rectangular cross-section, and the special-shaped portion is a straight column with a non-circular cross-section. The upper part of the anchor rod is provided with a fixing fork movably connected to its top, and the middle part of the fixing fork is provided with a socket adapted to the cross-section of the special-shaped portion, and both sides of the fixing fork are plugs extending downward.

5. A slope support and reinforcement device according to claim 4, characterized in that: The top of the platform anchor rod is provided with an external thread, and the top end of the platform anchor rod is provided with a cap head which is threadedly connected thereto, and the cap head is hexagonal or square.

6. A slope support and reinforcement device according to claim 5, characterized in that: It also includes a pressure tube movably sleeved with the platform anchor rod, the top end face of the pressure tube contacts the bottom face of the cap head, the bottom end face of the pressure tube contacts the top side of the fixed fork, and the pressure tube is clearance-matched with the special-shaped part.

7. A slope support and reinforcement device according to claim 1, characterized in that: A row of equally spaced fixings is provided on the upper part of the baffle, and a row of equally spaced fixings is provided on the lower part of the baffle. The fixings are penetrated by through holes for passing the upper pull anchor cable or the lower pull anchor cable. The outer ends of the upper pull anchor cable and the lower pull anchor cable are respectively fixed with wire locks, and the wire locks are blocked outside the through holes.

8. A slope support and reinforcement device according to claim 1, characterized in that: The upper pull anchor cable or the lower pull anchor cable is sleeved with a plastic insert tube on the outside, and the length of the insert tube is adapted to the length of the upper pull anchor cable or the lower pull anchor cable.

9. A slope support and reinforcement device according to claim 1, characterized in that: The pull-down anchor cable is arranged below the pull-up anchor cable and the pull-down anchor cable and the baffle plate form an angle between 35 and 45 degrees.

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