Soil slope reinforcing structure and method

Abstract

The invention discloses a soil slope reinforcing structure, which relates to the technical field of geotechnical engineering and slope support, and comprises an anchoring beam assembly, an anchor rod assembly and a protective panel, the anchoring beam assembly is arranged at the top of a slope and the lower end is arranged in a soil body; the anchor rod assembly is used for being embedded into a soil body from the inner side of a side slope, the inner end of the anchor rod assembly is used for stretching into a stable soil body area, and the anchor rod assembly is fixedly connected with the anchoring beam assembly; the protection panel is used for being fixedly arranged on the surface of the slope and can be fixedly connected with the outer end of the anchor rod assembly. According to the soil slope reinforcing structure, the overall reinforcing stability of the slope can be improved. The invention further provides a reinforcing method based on the soil slope reinforcing structure.

Description

Technical Field

[0001] This invention relates to the field of geotechnical engineering and slope protection technology, and in particular to a soil slope reinforcement structure and method. Background Technology

[0002] Traditional pressure grouting techniques face significant challenges when implementing anchor bolt support in deep, loose soil slopes with poor density. Due to the high porosity and poor structure of this type of soil, a large amount of cement mortar seeps into the surrounding soil during grouting, preventing the anchor bolt duct from effectively filling and forming a continuous, dense anchor body. This "high grout absorption" problem results in insufficient anchor bolt length and low bond strength, ultimately leading to the anchor bolt's bearing capacity failing to meet design requirements and posing safety hazards to the slope support. Summary of the Invention

[0003] The purpose of this invention is to provide a soil slope reinforcement structure and method to solve the problems existing in the prior art and improve the overall stability of the slope reinforcement.

[0004] To achieve the above objectives, the present invention provides the following solution: This invention provides a soil slope reinforcement structure, including an anchor beam assembly, an anchor rod assembly, and a protective panel; the anchor beam assembly is used to be installed at the top of the slope with its lower end placed inside the soil; the anchor rod assembly is used to be embedded in the soil from the inside of the slope, with its inner end extending into the stable soil area, and the anchor rod assembly is fixedly connected to the anchor beam assembly; the protective panel is used to be fixedly installed on the slope surface and can be fixedly connected to the outer end of the anchor rod assembly.

[0005] Preferably, the anchor beam assembly includes concrete beams disposed on both sides of the slope, with the lower end of each concrete beam extending into the stable soil area; the anchor rod assembly passes through the concrete beams and is fixedly connected to the concrete beams.

[0006] Preferably, a steel reinforcement frame is fixedly installed inside the concrete beam.

[0007] Preferably, the anchor bolt assembly includes a plurality of spaced reinforced anchor bolts, each of which is embedded in the soil from the inside of the slope, with the inner end of each reinforced anchor bolt extending into the stable soil area, and the outer end of each reinforced anchor bolt being fixedly connected to the protective panel; and each reinforced anchor bolt penetrates the anchoring beam assembly and is fixedly connected to the anchoring beam assembly.

[0008] Preferably, each of the reinforced anchor rods is a threaded steel bar anchor rod.

[0009] Preferably, the protective panel is a concrete slab, and the outer end of the anchor bolt assembly can be fixedly embedded in the concrete slab.

[0010] Preferably, the protective panel further includes a steel mesh disposed within the concrete slab.

[0011] The present invention also provides a method for reinforcing soil slopes, comprising the following steps: Anchor beam assemblies are formed on the slope and fixedly connected to anchor bolt assemblies embedded on the inner side of the slope. A protective panel is formed on the slope surface and fixedly connected to the outer end of the anchor bolt assembly.

[0012] Preferably, the method includes the following steps: Grooving at the rear edge: Forming longitudinal grooves at the rear edge of the top of the slope or pre-embedding molds at the rear edge of the top of the slope; Install the anchor bolt assembly: embed the anchor bolt assembly into the soil from the inside of the slope and extend into the stable soil area, and the anchor bolt assembly passes through the longitudinal slot or the module; Molding anchor beam assembly: Concrete is poured into the longitudinal slot or the mold so that the concrete can enclose the anchor bolt assembly in the longitudinal slot or the mold; Molded protective panel: Concrete is applied to the slope surface and can wrap around the outer end of the anchor assembly extending from the slope.

[0013] Preferably, in the step-forming anchor beam assembly, a steel reinforcement frame can be first set in the longitudinal slot or in the module, and then concrete can be poured. In the step-forming protective panel, a steel mesh can be laid on the slope surface first, and then concrete can be laid on top.

[0014] The present invention achieves the following technical effects compared to the prior art: The soil slope reinforcement structure and method provided by this invention fixes the anchor bolt assembly to the anchor beam assembly embedded in the top of the slope, transferring the anchoring function of the traditional anchor bolt from relying on the bonding of loose soil to the pre-set anchor beam assembly. This avoids the problem of large amount of grout loss when directly grouting in loose soil, ensuring the reliability and consistency of the anchoring. The external protective panel not only restrains the soil on the slope surface, but also effectively prevents water flow from scouring and eroding the slope surface, making it particularly suitable for soil slope support of water-passing structures such as canals and reservoirs. By setting the inner end of the anchor bolt assembly to extend into the stable soil area, combined with the connection of the deep part to the anchor beam assembly, and the fixed connection of the outer end to the protective panel, the anchor bolt assembly, anchor beam assembly, and surface protective panel are organically combined to form a three-dimensional reinforcement system of "deep anchor - central lock - surface protection", which greatly improves the integrity and stability of the slope. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the soil slope reinforcement structure provided in Embodiment 1 of the present invention.

[0017] In the diagram: 1-Anchor beam assembly; 11-Concrete beam; 2-Anchor assembly; 21-Reinforced anchor; 3-Stable soil area; 4-Protective panel; 41-Concrete slab; 5-Original slope. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The purpose of this invention is to provide a soil slope reinforcement structure and method to solve the problems existing in the prior art and improve the overall stability of the slope reinforcement.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1 This embodiment provides a soil slope reinforcement structure. Please refer to [link / reference]. Figure 1 The system includes an anchor beam assembly 1, an anchor rod assembly 2, and a protective panel 4. The anchor beam assembly 1 is installed at the top of the slope with its lower end inside the soil. The anchor rod assembly 2 is embedded in the soil from the inside of the slope, with its inner end extending into the stable soil area 3. The anchor rod assembly 2 is fixedly connected to the anchor beam assembly 1. The protective panel 4 is fixedly installed on the slope surface and can be fixedly connected to the outer end of the anchor rod assembly 2.

[0022] In this system, the anchor bolt assembly 2 is fixedly connected to the anchoring beam assembly 1 embedded at the top of the slope. This transfers the anchoring function of the traditional anchor bolt from relying on the bonding of loose soil to the pre-set anchoring beam assembly 1, avoiding the problem of large-scale grout loss when directly grouting in loose soil, and ensuring the reliability and consistency of the anchoring. The external protective panel 4 not only restrains the soil on the slope surface, but also effectively prevents water flow from scouring and eroding the slope surface, making it particularly suitable for soil slope support for water-passing structures such as canals and reservoirs. By setting the inner end of the anchor bolt assembly 2 to extend into the stable soil area 3, combined with the connection of the deep part to the anchoring beam assembly 1, and the fixed connection of the outer end to the protective panel 4, the anchor bolt assembly 2, the anchoring beam assembly 1, and the surface protective panel 4 are organically combined to form a three-dimensional reinforcement system of "deep anchoring-intermediate locking-surface protection", which greatly improves the integrity and stability of the slope.

[0023] In the optional scheme of this embodiment, more preferably, the anchor beam assembly 1 includes concrete beams 11 disposed on both sides of the slope, and the lower end of each concrete beam 11 extends into the stable soil area 3; the anchor rod assembly 2 passes through the concrete beams 11 and is fixedly connected to the concrete beams 11.

[0024] The concrete beams 11 on both sides are set along the rear edge of the slope top. They are reinforced concrete components formed by pouring concrete into longitudinal slots or pre-embedded molds excavated at the top of the slope and extending along the slope direction. The inner end of the anchor bolt assembly 2 passes through the concrete beam 11 so that the anchor bolt assembly 2 can be anchored in the concrete beam 11 to form a rigid connection. The concrete beam 11 is poured in the slots or molds, and its size, reinforcement and concrete quality are easy to control and inspect, thereby ensuring the strength and durability of the core node of the entire anchoring system.

[0025] In the optional embodiments of this example, a steel reinforcement frame is preferably fixedly installed inside the concrete beam 11.

[0026] In order to further improve the stability of the concrete beam 11, a steel reinforcement cage can be tied in the slot or the formwork and concrete can be poured and compacted to form the concrete beam 11.

[0027] In the optional embodiment, more preferably, the anchor bolt assembly 2 includes a plurality of spaced reinforced anchor bolts 21, each reinforced anchor bolt 21 is embedded in the soil from the inside of the slope, the inner end of each reinforced anchor bolt 21 is used to extend into the stable soil area 3, and the outer end of each reinforced anchor bolt 21 is fixedly connected to the protective panel 4; and each reinforced anchor bolt 21 penetrates the anchor beam assembly 1 and is fixedly connected to the anchor beam assembly 1.

[0028] By setting multiple reinforced anchor rods 21, the slope can be reinforced in different areas to improve stability. The multiple reinforced anchor rods 21 are distributed as needed. The inner end of the reinforced anchor rod 21 is anchored in the stable soil area 3 inside the slope, and its outer end extends backward and is fixedly connected to the protective panel 4. The part of the reinforced anchor rod 21 that passes through the concrete beam 11 is fixedly connected to the concrete beam 11. In this way, a three-dimensional reinforcement system of "deep anchor - central lock - surface protection" is formed, which greatly improves the integrity and stability of the slope.

[0029] In the optional scheme of this embodiment, it is more preferred that each reinforced anchor rod 21 is a threaded steel bar anchor rod; in order to ensure the stability of the reinforced anchor rod 21, they are all set as threaded steel bar anchor rods.

[0030] In the optional scheme of this embodiment, more preferably, the protective panel 4 is a concrete slab 41, and the outer end of the anchor bolt assembly 2 can be fixedly embedded in the concrete slab 41.

[0031] Among them, the concrete slab 41 set on the external slope can not only restrain the surface soil, but also effectively prevent water flow from scouring and eroding the slope, and is particularly suitable for soil slope support of water-passing structures such as canals and reservoirs.

[0032] In an optional embodiment, more preferably, the protective panel 4 further includes a steel mesh disposed within the concrete slab 41.

[0033] In order to further improve the stability of the protective panel 4, a steel mesh is laid on the slope surface and concrete is poured to form an external slope-attached protective panel 4. The internal steel mesh can be welded or tied to the reinforced anchor rod 21. Furthermore, the protective panel 4 can be connected and fixed to the anchor beam 3 according to the actual setting requirements.

[0034] Example 2 This embodiment provides a method for reinforcing soil slopes, based on the soil slope reinforcement structure as described in Embodiment 1, including the following steps: forming an anchor beam assembly 1 on the slope and fixing it to an anchor rod assembly 2 embedded on the inner side of the slope; forming a protective panel 4 on the slope surface and fixing it to the outer end of the anchor rod assembly 2.

[0035] More preferably, the method specifically includes the following steps: Grooving at the rear edge: Forming longitudinal grooves at the rear edge of the top of the slope or pre-embedding molds at the rear edge of the top of the slope; Install anchor bolt assembly 2: Embed anchor bolt assembly 2 from the inside of the slope into the soil and extend into the stable soil area 3, and anchor bolt assembly 2 penetrates the longitudinal slot or module; Formed anchor beam assembly 1: Concrete is poured into the longitudinal slot or module so that the concrete can enclose the anchor bolt assembly 2 inside the longitudinal slot or module. Molded protective panel 4: Concrete is laid on the slope surface and can wrap the anchor bolt assembly 2 extending out of the slope.

[0036] More preferably, in the step-forming anchor beam assembly 1, a steel reinforcement frame can be set in the longitudinal slot or module first, and then concrete can be poured; in the step-forming protective panel 4, a steel mesh can be laid on the slope surface first, and then concrete can be laid on top.

[0037] That is, firstly, the original slope 5 is excavated according to the design to form a stable slope surface; then, a longitudinal slot with a rectangular cross-section is excavated at the rear edge of the slope top; next, the anchor bolt assembly 2 is drilled from the side of the slope into the stable soil area 3 deep in the slope to ensure the anchorage length; after all the reinforced anchor bolts 21 are installed, steel bars are tied in the slot and concrete is poured, and after compaction, a concrete beam 11 is formed; the concrete beam 11 firmly embeds the tails of all the reinforced anchor bolts 21 into one piece; finally, a steel mesh is laid on the slope surface and concrete is poured to form an external slope protection panel 4.

[0038] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A soil slope reinforcement structure, characterized in that: include: An anchor beam assembly (1) is used to be installed at the top of the slope with its lower end placed inside the soil. An anchor assembly (2) is used to be embedded in the soil from the inside of the slope. The inner end of the anchor assembly (2) is used to extend into the stable soil area (3), and the anchor assembly (2) is fixedly connected to the anchor beam assembly (1); and The protective panel (4) is used to be fixedly installed on the slope surface and can be fixedly connected to the outer end of the anchor assembly (2).

2. The soil slope reinforcement structure according to claim 1, characterized in that: The anchor beam assembly (1) includes concrete beams (11) set on both sides of the slope, and the lower end of each concrete beam (11) extends into the stable soil area (3); the anchor rod assembly (2) passes through the concrete beam (11) and is fixedly connected to the concrete beam (11).

3. The soil slope reinforcement structure according to claim 2, characterized in that: A steel reinforcement frame is fixedly installed inside the concrete beam (11).

4. The soil slope reinforcement structure according to claim 1, characterized in that: The anchor assembly (2) includes a plurality of spaced reinforced anchors (21), each of which is embedded in the soil from the inside of the slope. The inner end of each of the reinforced anchors (21) is used to extend into the stable soil area (3), and the outer end of each of the reinforced anchors (21) is fixedly connected to the protective panel (4). Furthermore, each of the reinforced anchors (21) penetrates the anchor beam assembly (1) and is fixedly connected to the anchor beam assembly (1).

5. The soil slope reinforcement structure according to claim 4, characterized in that: All of the reinforced anchor rods (21) are set as threaded steel bar anchor rods.

6. The soil slope reinforcement structure according to claim 1, characterized in that: The protective panel (4) is a concrete slab (41), and the outer end of the anchor bolt assembly (2) can be fixedly embedded in the concrete slab (41).

7. The soil slope reinforcement structure according to claim 6, characterized in that: The protective panel (4) also includes a steel mesh disposed within the concrete slab (41).

8. A method for reinforcing soil slopes, characterized in that: Includes the following steps: An anchor beam assembly (1) is formed on the slope and fixedly connected to the anchor rod assembly (2) embedded on the inner side of the slope; A protective panel (4) is formed on the slope surface and fixedly connected to the outer end of the anchor assembly (2).

9. The method for reinforcing soil slopes according to claim 8, characterized in that: Includes the following steps: Grooving at the rear edge: Forming longitudinal grooves at the rear edge of the top of the slope or pre-embedding molds at the rear edge of the top of the slope; Install the anchor bolt assembly (2): embed the anchor bolt assembly (2) from the inside of the slope into the soil and extend into the stable soil area (3), and the anchor bolt assembly (2) penetrates the longitudinal slot or the module; Forming anchor beam assembly (1): Concrete is poured into the longitudinal slot or the module so that the concrete can enclose the anchor bolt assembly (2) in the longitudinal slot or the module. Molded protective panel (4): Concrete is laid on the slope surface and can wrap the anchor assembly (2) extending out of the slope.

10. The method for reinforcing soil slopes according to claim 9, characterized in that: In the step-forming anchor beam assembly (1), a steel reinforcement frame can be set in the longitudinal slot or the module first, and then concrete can be poured; In the step-forming protective panel (4), a steel mesh can be laid on the slope surface first, and then concrete can be laid on top.

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