Anchoring structure for excavating slope with uneven and unstable slope surface

Abstract

The utility model provides an anchoring structure for excavating a slope with an uneven and unstable slope surface, a natural slope is excavated through engineering arrangement to form the slope with the uneven slope surface, the anchoring structure comprises a concrete sealing layer attached to the surface of the slope, and a plurality of bendable rib groups which are staggered transversely and longitudinally are arranged on the concrete sealing layer. The rib groups are attached to the surface of the concrete sealing layer, the transverse rib group is set as a first rib group, the longitudinal rib group is set as a second rib group, and a pre-stressed anchor cable inserted into the side slope is arranged at the overlapping position of the first rib group and the second rib group. Furthermore, the rib groups attached to the surface of the concrete sealing layer are arranged and are combined with the pre-stressed anchor cables to form integral reinforcement, so that the integral stability of the side slope is ensured, chipping caused by crushing of the superficial surface is avoided, and construction is facilitated while the engineering investment is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of slope anchoring, in particular to an anchoring structure for an uneven and unstable slope. Background Art

[0002] The slope stability of the rock slope with weak interlayer or mudstone interlayer is poor. When the steep unloading cracks or joint cracks are developed, the cracks on the surface of the excavated slope and the weak interlayer or mudstone interlayer along the slope are cut together, which easily leads to the unevenness of the excavated slope surface. When the joint cracks of the vertical slope are superimposed, the integrity of the excavated slope surface is poor and there are many unstable areas. The unstable slope with a flat excavation surface can be reinforced by prestressed anchor cable + frame beam, prestressed anchor cable + slope concrete. For the support of the uneven and unstable slope of the excavated slope, the difference of "convex and concave" of the slope surface can reach several meters, which is not suitable for the anchoring method of prestressed anchor cable + frame beam, because the "convex and concave" surface will make the height of the frame beam reach several meters, making its structural stress condition poor and construction difficult. If prestressed anchor cables + slope-concrete are used to raise the uneven slopes of this type, although the reinforcement purpose can be achieved, the amount of concrete work is large and the construction period is long. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide an anchoring structure for an unstable slope with an uneven excavation surface, which can solve the problem that the unstable slope with an uneven excavation surface is difficult to anchor due to the "concave and convex" drop of the slope surface.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] An anchoring structure for an uneven and unstable slope is disclosed. The uneven slope is formed by excavating a natural slope through engineering arrangement. The structure comprises a concrete sealing layer attached to the surface of the slope. A plurality of bendable rib groups staggered in a horizontal and vertical direction are arranged on the concrete sealing layer. The rib groups are attached to the surface of the concrete sealing layer. The horizontal rib group is the first rib group and the vertical rib group is the second rib group. A prestressed anchor cable inserted into the interior of the slope is arranged at the overlapping portion of the first rib group and the second rib group.

[0006] On the basis of adopting the above technical solutions, the present invention can also adopt the following further technical solutions, or use these further technical solutions in combination:

[0007] Each of the rib groups includes a plurality of bendable ribs, and the ribs are attached to the surface of the concrete sealing layer.

[0008] Each of the rib groups further comprises a plurality of fastening rods, and the fastening rods in the same rib group are vertically fixed to the surface of the ribs.

[0009] A plurality of first anchor rods with one end located inside the slope are inserted into the rib group. A pad is provided at one end of the first anchor rod, and the pad is fixed to the upper layer of the rib group.

[0010] A plurality of the first anchor rods are distributed between two adjacent prestressed anchor cables.

[0011] An anchoring reinforcement area is provided between two adjacent first rib groups and two adjacent second rib groups, and a plurality of second anchor rods inserted into the inside of the slope are provided in the anchoring reinforcement area.

[0012] A steel mesh is provided on the surface of the concrete sealing layer, and one end of the second anchor rod exposed from the concrete sealing layer is fixedly connected to the steel mesh.

[0013] An anchor pier is fixed to one end of the prestressed anchor cable exposed from the slope, the bottom surface of the anchor pier is fixed on the upper surface of the concrete sealing layer, and the rib group is fixed inside the anchor pier.

[0014] A concrete reinforcement layer is provided on the surface of the steel mesh.

[0015] The concrete reinforcement layer is provided with drainage holes which penetrate into the interior of the slope and face upward.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects: by spraying a concrete sealing layer on the uneven slope, and then arranging a rib group that fits the surface of the concrete sealing layer, combined with prestressed anchor cables to form an overall reinforcement, it not only ensures the overall stability of the slope, but also avoids the falling of the shallow surface due to crushing, saving engineering investment and facilitating construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross section of the prestressed anchor cable of the utility model.

[0018] Figure 2 It is a schematic diagram of the planar distribution of the rib group, anchor pier, prestressed anchor cable and first anchor rod of the utility model.

[0019] Figure 3 It is a schematic diagram of the cross section of the first anchor rod, prestressed anchor cable and anchor pier of the utility model.

[0020] Figure 4 It is a schematic diagram of the cross section of the second anchor rod of the utility model. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the preferred implementation scheme of the present utility model is described below in conjunction with specific embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent elements with the same or similar functions. However, it should be understood that the accompanying drawings are only used for illustrative purposes and cannot be understood as limitations on the present utility model. In order to better illustrate the present embodiment, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted, and the positional relationship described in the accompanying drawings is only used for illustrative purposes and cannot be understood as limitations on the present utility model.

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0023] The utility model provides an anchoring structure for excavating an uneven and unstable slope, such as Figure 1 As shown, the natural slope 1 has a soft rock interlayer 2 inclined in the horizontal direction and a steep joint fissure 3 inclined in the vertical direction. The natural slope 1 is excavated through engineering arrangement to form a slope 4 with an uneven slope surface, including a concrete sealing layer 10 attached to the surface of the slope 4. A plurality of bendable rib groups staggered in horizontal and vertical directions are arranged on the concrete sealing layer 10. The rib groups are attached to the surface of the concrete sealing layer 10. Figure 2 As shown, the transverse rib group is the first rib group and the longitudinal rib group is the second rib group, and the overlap of the first rib group and the second rib group is provided with a prestressed anchor cable 5 inserted into the slope 4.

[0024] Each rib group includes a plurality of bendable ribs 7 , and the ribs 7 are attached to the surface of the concrete sealing layer 10 .

[0025] Each rib group further includes a plurality of fastening rods 8 , and the fastening rods 8 in the same rib group are vertically fixed to the surface of the rib 7 .

[0026] In this embodiment, the ribs 7 are thick steel bar ribs, the fastening rods 8 are thick steel bars with the same diameter as the ribs 7, and the ribs 7 and the fastening rods 8 are spot welded and bundled.

[0027] like Figure 2 and Figure 3 As shown, a plurality of first anchor rods 9 with one end located inside the slope 4 are inserted into the rib group, and a pad is provided at one end of the first anchor rod 9, which is fixed to the upper layer of the rib group.

[0028] In this embodiment, the backing plate of the first anchor rod 9 is connected to the rib 7 by spot welding.

[0029] A plurality of first anchor rods 9 are distributed between two adjacent prestressed anchor cables 5 .

[0030] In this embodiment, the first anchor rod 9 is a common long anchor rod, and the number of the first anchor rods 9 between two adjacent prestressed anchor cables 5 in the second rib group is greater than the number of the first anchor rods 9 between two adjacent prestressed anchor cables 5 in the first rib group.

[0031] Combination Figure 2 and Figure 4 An anchoring reinforcement area 15 is provided between two adjacent first rib groups and two adjacent second rib groups, and a plurality of second anchor rods 11 inserted into the slope 4 are provided in the anchoring reinforcement area 15 .

[0032] like Figure 4 As shown, a steel mesh 12 is provided on the surface of the concrete sealing layer 10 , and one end of the second anchor rod 11 exposed from the concrete sealing layer 10 is fixedly connected to the steel mesh 12 .

[0033] In this embodiment, the second anchor rod 11 is an ordinary mortar anchor rod, the steel mesh 12 is made of thin steel bars in a mesh shape, and the second anchor rod 11 and the steel mesh 12 are welded.

[0034] like Figure 1 and Figure 2 As shown, an end of the prestressed anchor cable 5 exposed from the slope 4 is fixed with an anchor pier 6, the bottom surface of the anchor pier 6 is fixed on the top of the concrete sealing layer 10, and the rib group is fixed inside the anchor pier 6. A concrete reinforcement layer 13 is provided on the surface of the steel mesh 12.

[0035] like Figure 4 As shown, the concrete reinforcement layer 13 is provided with drainage holes 14 which penetrate into the interior of the slope 4 and face upward.

[0036] In this embodiment, the upward-facing drainage holes 14 refer to that each drainage hole 14 is constructed from bottom to top, and an inclined upward drainage hole 14 is formed in the inward direction of the slope 4 .

[0037] The construction process of this utility model is as follows:

[0038] After excavation forms an uneven and unstable slope 4, first a layer of concrete sealing layer 10 is sprayed to seal the slope surface, and then the first anchor rod 9, the second anchor rod 11, and the prestressed anchor cable 5 are positioned, drilled, and installed in sequence. The rib group and the steel mesh 12 are installed again, and then the anchor pier 6 is poured, the concrete reinforcement layer 13 is sprayed, and finally the drainage hole 14 of the construction system is constructed, and the prestressed anchor cable 5 is tensioned.

[0039] The above process can be reasonably adjusted according to the specific construction conditions.

[0040] According to the description and drawings of the utility model, those skilled in the art can easily manufacture or use the anchoring structure of the utility model for excavating an uneven and unstable slope, and can produce the positive effects recorded in the utility model.

[0041] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two mechanisms, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0042] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "inside", "horizontal", "end", "length", "outer end", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the mechanism or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are also used only for the simplicity of description, and do not indicate or imply relative importance.

[0043] Furthermore, in practicing the claims of the present invention, those skilled in the art may understand and affect variations to the disclosed embodiments by studying the drawings, disclosure, and appended claims. In addition, in the claims and the specification, words such as "comprises", "comprising", etc. do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0044] The above is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention and will not be listed one by one here.

Claims

1. An anchoring structure for excavating an uneven and unstable slope, wherein a natural slope (1) is excavated through engineering arrangement to form an uneven slope (4), characterized in that: The invention comprises a concrete sealing layer (10) attached to the surface of a slope (4), wherein a plurality of bendable rib groups staggered in a horizontal and vertical direction are provided on the upper surface of the concrete sealing layer (10), wherein the rib groups are attached to the surface of the concrete sealing layer (10), wherein the horizontal rib group is a first rib group and the vertical rib group is a second rib group, and a prestressed anchor cable (5) inserted into the interior of the slope (4) is provided at the overlapped portion of the first rib group and the second rib group.

2. The anchoring structure for excavating an uneven and unstable slope as claimed in claim 1, characterized in that: Each of the rib groups comprises a plurality of bendable ribs (7), wherein the ribs (7) are attached to the surface of the concrete sealing layer (10).

3. The anchoring structure for excavating an uneven and unstable slope as claimed in claim 2, characterized in that: Each of the rib groups further comprises a plurality of fastening rods (8), and the fastening rods (8) in the same rib group are vertically fixed to the surface of the rib (7).

4. The anchoring structure for excavating an uneven and unstable slope as claimed in claim 1, characterized in that: A plurality of first anchor rods (9) with one end located inside the slope (4) are inserted into the rib group, and a pad is provided at one end of the first anchor rod (9), and the pad is fixed to the upper layer of the rib group.

5. The anchoring structure for excavating an uneven and unstable slope as claimed in claim 4, characterized in that: A plurality of the first anchor rods (9) are distributed between two adjacent prestressed anchor cables (5).

6. The anchoring structure for excavating an uneven and unstable slope as claimed in claim 1, characterized in that: An anchoring reinforcement area (15) is provided between two adjacent first rib groups and two adjacent second rib groups, and a plurality of second anchor rods (11) inserted into the interior of the slope (4) are provided in the anchoring reinforcement area (15).

7. An anchoring structure for excavating an uneven and unstable slope as claimed in claim 6, characterized in that: A steel mesh (12) is provided on the surface of the concrete sealing layer (10), and one end of the second anchor rod (11) exposed from the concrete sealing layer (10) is fixedly connected to the steel mesh (12).

8. An anchoring structure for excavating an uneven and unstable slope as claimed in claim 1 or 7, characterized in that: An anchor pier (6) is fixed to one end of the prestressed anchor cable (5) exposed from the slope (4), the bottom surface of the anchor pier (6) is fixed to the top of the concrete sealing layer (10), and the rib group is fixed inside the anchor pier (6).

9. The anchoring structure for excavating an uneven and unstable slope as claimed in claim 7, characterized in that: A concrete reinforcement layer (13) is provided on the surface of the steel mesh (12).

10. An anchoring structure for excavating an uneven and unstable slope as claimed in claim 9, characterized in that: The concrete reinforcement layer (13) is provided with drainage holes (14) extending deep into the slope (4) and upward.

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