A road slope support structure and its construction method

Abstract

The present application relates to the field of slope support technology, and in particular to a road slope support structure and a construction method thereof, wherein the road support structure includes a frame beam, an anchor rod, and a reinforcement beam; the frame beam is fixedly arranged on the surface of the road slope, and the frame beam is used to constrain the soil of the road slope; the anchor rod is inserted into the soil of the road slope, and the end of the anchor rod away from the soil is fixedly connected to the frame beam; at least one reinforcement beam is provided, the reinforcement beam is buried in the soil of the road slope, and the reinforcement beam is provided on the side of the anchor rod away from the frame beam, and the reinforcement beam is used to connect two adjacent anchor rods. In the present application, by providing a reinforcement beam at the bottom of the two anchor rods, the reinforcement beam connects the anchor rods that bear external forces individually into a whole, thereby improving the pull-out resistance of the anchor rods; the anchor rods and the frame beam can anchor the potential landslide body on the potential sliding bed, thereby reducing the risk of landslide or local landslide on the road slope, and achieving the purpose of road slope reinforcement.

Description

Technical Field

[0001] The present application relates to the technical field of slope support, and in particular to a road slope support structure and a construction method thereof. Background Art

[0002] Anchor frame beam structure (also known as anchor lattice beam structure) is a common slope support structure, mainly used to reinforce unstable mountain or road slopes to prevent geological disasters such as landslides and collapses.

[0003] The frame beam is installed on the surface of the road slope to restrain the slope soil and inhibit its deformation. Anchor rods are inserted and fixed deep into the slope soil, consolidating the anchor rods and the surrounding soil to form an integrated support system. The anchor rods transfer the load of the frame beam to the stable soil, thereby improving the stability of the road slope and reducing the risk of geological disasters such as landslides.

[0004] Existing technologies primarily rely on friction between a single anchor rod and the soil to secure the frame beams, thereby restraining slope soil slippage. Due to the limited friction between a single anchor rod and the soil, when the anchor rod's tension on the frame beam in a local area is less than the force exerted by the slope soil, the soil on the road slope exerts a significant load on the frame beam, causing the anchor rod to break or pull out, leading to localized landslides. Summary of the Invention

[0005] In order to improve the stability of road slopes, the present application provides a road slope support structure and a construction method thereof.

[0006] This application provides a road slope support structure and a construction method thereof, which adopts the following technical solutions:

[0007] A road slope support structure is provided on the road slope and is used to reinforce the road slope; the support structure comprises a frame beam, an anchor rod and a reinforcement beam; the frame beam is fixedly provided on the surface of the road slope and is used to constrain the soil of the road slope; the anchor rod is inserted into the soil of the road slope, and the end of the anchor rod away from the soil is fixedly connected to the frame beam; a plurality of anchor rods are provided, and the plurality of anchor rods are laid in the soil of the road slope at intervals, and anchor holes are opened in the soil layer of the road slope, and the anchor holes are used to accommodate the anchor rods; the reinforcement beam is fixed to the road slope. At least one is provided, the reinforcement beam is buried in the soil of the road slope, and the reinforcement beam is provided on the side of the anchor rod away from the frame beam, the anchor rod includes a first anchor rod and a second anchor rod spaced apart, the anchor hole includes a first anchor hole and a second anchor hole, the first anchor hole is used to accommodate the first anchor rod, and the second anchor hole is used to accommodate the second anchor rod, one end of the reinforcement beam is integrally cast and fixed with the first anchor rod, and the other end of the reinforcement beam is integrally cast and fixed with the second anchor rod, a reinforcement channel is opened in the soil of the road slope, and the reinforcement channel is used to accommodate the reinforcement beam.

[0008] By adopting the above technical solution, a reinforcement beam is provided at the bottom of the two anchor rods (the first anchor rod and the second anchor rod). The reinforcement beam connects the first anchor rod and the second anchor rod, which independently bear the external force, into a whole, thereby improving the anchoring effect of the stable soil in the road slope on the anchor rod and improving the pull-out resistance of the anchor rod; the anchor rod and the frame beam can anchor the potential landslide body on the potential sliding bed, reducing the risk of landslide or local landslide on the road slope, thereby achieving the purpose of road slope reinforcement.

[0009] Optionally, when the soil of the road slope has a tendency to slide, the soil of the road slope is divided into a potential landslide body and a potential sliding bed along the potential sliding surface, and the potential landslide body has a tendency to slide along the potential sliding surface; the main body of the first anchor rod is set in the potential sliding bed, and the main body of the second anchor rod is set in the potential landslide body.

[0010] By adopting this technical solution, the main body of the second anchor is set in the unstable potential landslide body, and the end of the second anchor is set in the stable potential sliding bed. The first anchor, the second anchor, the reinforcement beam, and the longitudinal beams of the frame beam are arranged to form a frame structure. This clamps the potential landslide body and the potential sliding bed between the first and second anchors, increasing the relative force between the potential landslide body and the potential sliding bed. At the same time, the stable soil at the bottom of the road slope is used to anchor the second anchor, improving its pullout resistance and reducing the risk of the potential landslide body slipping.

[0011] Optionally, the reinforced beam includes a reinforced concrete body and reinforced steel strands, the reinforced concrete body is arranged in the reinforced channel, the reinforced steel strands are buried in the reinforced concrete body, one end of the reinforced steel strands extends and is buried in the first anchor rod, and the other end of the reinforced steel strands extends and is buried in the second anchor rod.

[0012] By adopting the above technical solution, the reinforcing steel strands are arranged through the first anchor rod, the reinforcing beam and the second anchor rod, so as to improve the connection strength between the reinforcing beam and the first anchor rod and the second anchor rod.

[0013] Optionally, at least two reinforcing steel strands are provided, several strands of the reinforcing steel strands are twisted into a combined steel strand, and gaps are provided between the several strands of the reinforcing steel strands for concrete to pass through.

[0014] By adopting the above technical solution, there are gaps between the reinforcing steel strands for concrete to pass through, thereby improving the bite strength between the reinforcing steel strands and the reinforced concrete body and the anchor concrete body, thereby improving the connection strength between the reinforced beam and the first anchor rod and the second anchor rod.

[0015] Optionally, the reinforcement beam further includes a metal corrugated hose, which is arranged in the reinforcement channel, the reinforcement concrete body is buried in the metal corrugated hose, and the metal corrugated hose is provided with a penetration hole for concrete mortar to pass through.

[0016] By adopting the above technical solution, the reinforced corrugated hose is used to constrain the concrete in the reinforced beam, so as to improve the structural strength of the reinforced beam and the anchoring effect of the reinforced beam and the first anchor rod on the second anchor rod.

[0017] Optionally, a bottom expansion hole section is provided at the bottom of the anchor hole, and along the direction away from the bottom expansion hole section, the soil layers around the bottom expansion hole section include a first soil body, a second soil body and a third soil body in sequence, the density of the second soil body is greater than the density of the third soil body, and the second soil body is a mixture of soil and cement; a concrete protective layer is also provided at the bottom of the anchor rod, and the concrete protective layer covers the surface of the first soil body.

[0018] By adopting the above technical solution, when concrete mortar is transported to the bottom of the second anchor hole to form a concrete protective layer at the bottom of the second anchor hole, the water content of the concrete mortar is relatively large, so that part of the water in the concrete penetrates into the first soil body, so that the cement and soil in the first soil body solidify into one; thereby improving the anchoring effect of the stable soil body in the road slope on the second anchor rod, that is, improving the strength of the potential landslide body and the potential sliding bed, improving the pull-out resistance of the second anchor rod, and further reducing the risk of landslide and local landslide on the road slope.

[0019] A construction method for a road slope support structure comprises the following steps:

[0020] Preparation before construction: level the road slope and remove impurities on the road slope surface;

[0021] Anchor hole construction: The construction location of the anchor hole is determined on the road slope. The anchor drilling rig drills the anchor hole on the road slope and keeps on-site construction records. After the drill bit of the anchor drilling rig reaches the designed depth, high-pressure gas is used to remove impurities from the anchor hole.

[0022] Reinforced channel construction: The anchor drilling rig includes a drill rod and a drill bit, and the drill bit is fixed on the drill rod; the construction device also includes a guide assembly, a wire saw, a traction steel strand and a reciprocating drive device; the drill bit is replaced with a guide assembly, the guide assembly includes a guide sleeve and a guide wheel, the guide sleeve is fixedly connected to the drill rod, and the guide wheel is in contact with the traction steel strand; the steel strands are provided with two, one traction steel strand is set in the first anchor hole, and the other traction steel strand is set in the second anchor hole, and the traction steel strands are both connected to the reciprocating drive device set on the road slope; the wire saw is fixed between the two traction steel strands, and the reciprocating drive device The device drives the wire saw to move back and forth, and the anchor drilling rig presses the wire saw into the soil, so that the wire saw cuts the soil between the first anchor hole and the second anchor hole; when the wire saw is sent to the designed depth, the anchor drilling rig drives the drill rod, the guide assembly, and the wire saw to rotate, and the anchor drilling rig drives the wire saw to move toward the bottom of the anchor hole; so that the wire saw processes a reinforcement channel between the first anchor hole and the second anchor hole, and uses the traction steel strand to clean the scum soil in the reinforcement channel and the scum soil at the bottom of the anchor hole; the wire saw is pulled out of the ground, and the wire saw is replaced with the reinforcement steel strand, and then the reinforcement steel strand is pulled into the first anchor hole, the reinforcement channel, and the second anchor hole;

[0023] Anchor and reinforcement beam construction: The steel bar is sent into the anchor hole, and the grouting pipe is sent to the bottom of the anchor hole at the same time; the anchor grouting adopts the pressure grouting method, and the concrete mortar fills the first anchor hole, the reinforcement channel and the second anchor hole; the anchor hole is cured for at least 7 days after grouting, and the concrete mortar in the anchor hole solidifies and hardens into the anchor concrete body, and the concrete mortar in the reinforcement channel solidifies and hardens into the reinforced concrete body.

[0024] Frame beam construction: Fix the frame beam on the road slope and fix the steel bar of the anchor rod to the frame beam.

[0025] The frame beam can be cast-in-situ or prefabricated. When the frame beam is cast-in-situ, a frame groove is excavated on the road slope, and the frame beam is formed through the steps of tying the beam reinforcement cage, supporting the formwork, pouring and curing.

[0026] Optionally, a construction method of a road slope support structure further includes the following steps:

[0027] Construction of the bottom expansion section of the anchor hole: Replace the drill bit on the drill pipe and use the reaming drill bit to expand the bottom of the anchor hole to produce the bottom expansion section of the anchor hole. Along the direction away from the bottom expansion section, the soil layers around the bottom expansion section include the first soil body, the second soil body and the third soil body in sequence;

[0028] Construction of the soil at the bottom of the anchor hole: alternately deliver cement to the bottom of the anchor hole and use a heavy hammer to hammer the soil at the bottom of the anchor hole to increase the density of the second soil and embed the cement into the first soil; then, pour concrete mortar at the bottom of the anchor hole to form a concrete protective layer. The concrete protective layer covers the surface of the first soil, and the moisture in the concrete mortar penetrates into the first soil to harden the first soil.

[0029] Optionally, a construction method of a road slope support structure further includes the following steps:

[0030] Reinforced through-hole expansion construction: a first bottom expansion hole section is provided at the bottom of the first anchor hole, and a second bottom expansion hole section is provided at the bottom of the second anchor hole, and the reinforcement channel is connected to the first bottom expansion hole section and the second bottom expansion hole section; the construction device also includes a plurality of buckets, which are detachably connected to the traction steel strand, and a plurality of the buckets are arranged at intervals along the traction steel strand, and the buckets are used to remove soil in the reinforcement channel.

[0031] Optionally, a construction method of a road slope support structure further includes the following steps:

[0032] Construction of combined steel strands: After multiple strands of reinforcing steel strands are set in the first anchor hole, the reinforcement channel and the second anchor hole, the reinforcing steel strands are separated from the traction steel strands, and then the multiple strands of reinforcing steel strands are twisted into a combined steel strand, with gaps between the reinforcing steel strands for concrete to flow.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] 1. By installing a reinforcement beam at the bottom of the first and second anchor rods, the reinforcement beam connects the first and second anchor rods, which are subject to external forces independently, into a single unit. This improves the anchoring effect of the stable soil in the road slope on the anchor rods and enhances the pull-out resistance of the anchor rods. The anchor rods and frame beams can anchor the potential landslide body to the potential sliding bed, reducing the risk of landslide or local landslide on the road slope, thereby achieving the purpose of road slope reinforcement.

[0035] 2. There are gaps between the reinforcing steel strands for concrete to pass through. This improves the bite strength between the reinforcing steel strands and the reinforced concrete body and the anchor concrete body, thereby improving the connection strength between the reinforced beam and the first anchor rod and the second anchor rod;

[0036] 3. By pumping cement into the bottom of the anchor hole and using a heavy hammer to hit the soil at the bottom of the anchor hole, the anchoring effect of the stable soil in the road slope on the second anchor rod is improved; that is, the strength of the potential landslide body and the potential sliding bed is increased, the pull-out resistance of the second anchor rod is improved, and the risk of landslide and local landslide on the road slope is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural diagram of an anchor frame beam in the prior art.

[0038] Figure 2 Schematic diagram of the road slope support structure in Example 1.

[0039] Figure 3 Schematic diagram of the road slope support structure in Example 1.

[0040] Figure 4 It is a cross-sectional view of the road slope support structure in Example 1.

[0041] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0042] Figure 6 This is a schematic diagram of the channel reinforcement construction method in Example 2.

[0043] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0044] Figure 8 This is a schematic diagram of the channel reinforcement construction method in Example 2.

[0045] Figure 9 It is a cross-sectional view of the road slope support structure in Example 3.

[0046] Figure 10 yes Figure 9 Enlarged view of point C in the middle.

[0047] Figure 11 This is a schematic diagram of the reinforced channel construction method in Example 4.

[0048] Figure 12 yes Figure 11 Enlarged view of point D in the middle.

[0049] Figure 13 It is a structural schematic diagram of the bucket in Example 4.

[0050] Figure 14 It is a cross-sectional view of the road slope support structure in Example 5.

[0051] Figure 15 yes Figure 14Enlarged view of point E in the middle.

[0052] Figure 16 It is a cross-sectional view of the reinforced beam structure in Example 7.

[0053] Figure 17 It is a cross-sectional view of the road slope support structure in Example 8.

[0054] Explanation of reference numerals: 1. anchor rod; 11. first anchor rod; 12. second anchor rod; 13. anchor rod concrete body; 14. reinforcement rod body; 2. frame beam; 21. cross beam; 22. longitudinal beam; 3. reinforcement beam; 31. reinforcement concrete body; 32. reinforcement steel strand; 33. combined steel strand; 34. metal corrugated hose; 341. penetration hole; 4. drill rod; 5. traction steel strand; 6. guide assembly; 61. guide sleeve; 62. guide wheel; 7. wire saw; 8. reciprocating drive device; 81. winch; 82. cylinder; 94. potential Landslide body; 95. Potential landslide surface; 96. Potential sliding bed; 97. Anchor hole; 971. First anchor hole; 9711. First bottom hole section; 972. Second anchor hole; 9721. Second bottom hole section; 973. Bottom hole section; 98. Reinforced channel; 101. First soil body; 102. Second soil body; 103. Third soil body; 104. Concrete cover; 15. Heavy hammer; 16. Casing; 161. Arc guide; 17. Steel fiber; 18. Bucket; 181. Connecting steel bar; 182. Bucket body; 183. Connecting nut. DETAILED DESCRIPTION

[0055] The following is combined with Figure 1 -17 Provide further details on this application.

[0056] Example 1

[0057] A landslide occurs when soil and rock (the landslide mass) on a slope slides and falls as a whole along a sliding surface on a slide bed under the influence of gravity. Landslides on road slopes are often associated with rainfall. Rainfall increases the moisture content of the soil, increasing the mass of the landslide mass. This increases the force of gravity on the landslide mass, which in turn increases its downward force. When the downward force of the landslide mass exceeds the resistance of the surface to the sliding mass, the landslide mass will slide along the surface.

[0058] Reference Figure 1 In the existing technology, the anchor frame beam structure (also known as the anchor lattice beam structure) is a common slope support structure, which is mainly used to reinforce unstable mountain or road slopes to prevent geological disasters such as landslides and collapses.

[0059] Reference Figure 1When the soil of the road slope has a sliding tendency, the soil of the road slope is divided into a potential landslide body 94 and a potential sliding bed 96 along the potential sliding surface. The potential landslide body 94 has a sliding tendency along the potential sliding surface.

[0060] Reference Figure 1 The anchor frame beam structure includes connected anchor rods 1 and frame beams 2. The frame beams 2 are arranged on the surface of the road slope. The function of the frame beams 2 is to constrain the slope soil and suppress the deformation of the slope soil. The anchor rods 1 are inserted and fixed in the deep soil of the slope. The anchor rods 1 are consolidated with the surrounding soil to form an integral support system. That is, through the tension of the anchor rods 1, the frame beams 2 are tightly attached to the potential landslide body 94 to increase the anti-slip force between the potential landslide body 94 and the potential landslide surface 95, thereby improving the stability of the road slope. At the same time, the grid between the frame beams 2 can be used to plant various types of vegetation to play an ecological protection role.

[0061] Reference Figure 1 When the anchoring force of the anchor frame beam can balance the downward force of the potential landslide body 94, the anchor frame beam can achieve the purpose of slope reinforcement. When the anchoring force of the anchor frame beam is insufficient to offset the downward force of the potential landslide body 94, the potential landslide body 94 develops into a landslide body, and the potential landslide surface 95 develops into a landslide surface. The landslide body then slides along the landslide surface, that is, the unstable landslide body slides relative to the stable sliding bed. The landslide body may also pull out or break the anchor rod 1, causing a landslide geological disaster on the road slope.

[0062] It is worth noting that during the design and construction phase of the anchor frame beam structure, the potential landslide body 94, potential landslide surface 95, and potential sliding bed 96 can be calculated through theoretical and numerical analysis, but they are different from the landslide body, landslide surface, and sliding bed that may actually occur. That is, due to different set conditions (such as rainfall), the potential landslide surface 95 of the same road slope is also different. This application takes the most unfavorable landslide surface position on the road slope as an example to explain.

[0063] Since the anchoring force of the anchor frame beam mainly comes from the interaction force between the anchor rod 1 and the stable soil (potential sliding bed 96) in the road slope; in the prior art, in order to improve the anchoring force of the anchor frame beam on the potential landslide body 94, the anchoring effect of the anchor frame beam on the potential landslide body 94 is generally improved by increasing the number of anchor rods 1 or the length of anchor rods 1.

[0064] Based on the above considerations, in order to improve the anchoring effect of the anchor frame beam on the potential landslide body 94, improve the stability of the road slope, and reduce the risk of landslide or local landslide on the road slope; the inventors have designed a road slope support structure after in-depth research to increase the interaction force between the anchor rod 1 and the road slope stabilizing body (potential sliding bed 96), thereby improving the support effect of the support structure on the road slope.

[0065] Reference Figure 2 and Figure 3 The present application discloses a road slope support structure, which is disposed on a road slope and is used to reinforce the road slope. Specifically, the support structure includes a frame beam 2, anchor rods 1, and reinforcement beams 3. In this embodiment, the road slope is soil.

[0066] Reference Figure 2 and Figure 3 Frame beam 2 is fixed to the surface of the road slope and is used to constrain the soil of the road slope. Frame beam 2 is a reinforced concrete structure and can be cast-in-place or prefabricated. This embodiment does not limit the specific molding method of frame beam 2. In this embodiment, frame beam 2 is preferably cast-in-place; frame beam 2 includes a transverse beam 21 and a longitudinal beam 22, with a plurality of transverse beams 21 and longitudinal beams 22 arranged in a cross-sectional and longitudinal arrangement.

[0067] Reference Figure 2 and Figure 3 The anchor rod 1 is inserted into the soil of the road slope, and the end of the anchor rod 1 away from the soil is fixedly connected to the frame beam 2. A plurality of anchor rods 1 are provided, and the plurality of anchor rods 1 are laid at intervals in the soil of the road slope. The intersection of the anchor rod 1 and the frame beam 2 is fixedly connected. Anchor holes 97 are provided in the soil of the road slope, and the anchor holes 97 are used to accommodate the anchor rods 1. The anchor rods 1 and the frame beam 2 can be fixed by cast-in-place integral molding, prestressed tie fixing, etc. This embodiment does not limit the specific fixing method of the anchor rods 1 and the frame beam 2.

[0068] Reference Figure 4 and Figure 5 In this embodiment, the anchor rod 1 is cast-in-place and integrally formed with the frame beam 2. The anchor rod 1 comprises a concrete anchor body 13 and a steel bar 14. The steel bar 14 is embedded in the concrete anchor body 13 and fixedly connected to the steel cage in the frame beam 2 to enhance the connection strength between the anchor rod 1 and the frame beam 2. The steel bar 14 is a ribbed steel bar to enhance the connection strength between the steel bar 14 and the concrete anchor rod 1.

[0069] Among them, the structural design parameters of the anchor rods 1, such as length, spacing, and anchoring angle, can be determined by those skilled in the art based on the soil conditions of the slope, in combination with theoretical methods such as the limit equilibrium method and the strength reduction method, and through numerical simulation and other means. Therefore, this embodiment does not elaborate on the specific design steps of the road slope support structure.

[0070] Reference Figure 4 and Figure 5For the convenience of description, the anchor rods 1 connected to the reinforcement beam 3 are named as the first anchor rod 11 and the second anchor rod 12 respectively, and the anchor hole 97 includes a first anchor hole 971 and a second anchor hole 972. The first anchor hole 971 is used to accommodate the first anchor rod 11, and the second anchor hole 972 is used to accommodate the second anchor rod 12.

[0071] Reference Figure 2 and Figure 3 At least one reinforcement beam 3 is provided, buried in the soil of the roadside slope, and positioned on the side of the anchor rod 1 away from the frame beam 2. In this embodiment, multiple reinforcement beams 3 are provided, and these multiple reinforcement beams 3 can be spaced horizontally, longitudinally, or diagonally along the roadside slope. This embodiment uses a longitudinally positioned reinforcement beam 3 as an example to illustrate the structure of the reinforcement beam 3.

[0072] Reference Figure 4 and Figure 5 One end of the reinforcement beam 3 is integrally cast and fixed with the first anchor rod 11 , and the other end of the reinforcement beam 3 is integrally cast and fixed with the second anchor rod 12 . A reinforcement channel 98 is opened in the soil of the road slope, and the reinforcement channel 98 is used to accommodate the reinforcement beam 3 .

[0073] Reference Figure 4 and Figure 5 When the soil of the roadside slope has a tendency to slide, the soil of the roadside slope is divided into a potential landslide body 94 and a potential sliding bed 96 along the potential landslide surface 95. When the potential landslide body 94 has a tendency to slide along the potential landslide surface 95, in this embodiment, the main body of the first anchor rod 11 is set in the potential sliding bed 96, and the main body of the second anchor rod 12 is set in the potential landslide body 94.

[0074] Reference Figure 4 and Figure 5 The reinforced beam 3 includes a reinforced concrete body 31 and reinforced steel strands 32. The reinforced concrete body 31 is disposed within the reinforced channel 98, and the reinforced steel strands 32 are embedded within the reinforced concrete body 31. One end of the reinforced steel strand 32 extends and is embedded within the first anchor rod 11, while the other end of the reinforced steel strand 32 extends and is embedded within the second anchor rod 12. This improves the connection strength between the reinforced beam 3 and the first and second anchor rods 11, 12. In this embodiment, the cross-sectional area of the reinforced channel 98 is larger than the cross-sectional area of the first and second anchor holes 971, 972, to ensure that the reinforced beam 3 and the second anchor rod 12 effectively tie the first anchor rod 11.

[0075] The implementation principle of a road slope support structure in the embodiment of the present application is as follows:

[0076] Reference Figure 4 and Figure 5Since the first anchor rod 11 is arranged at the bottom of the second anchor rod 12, the first anchor rod 11 or the main body of the first anchor rod 11 is arranged on a stable landslide body, that is, the first anchor rod 11 has a large force with the stable soil of the road slope, so that the road slope has a large pulling force on the first anchor rod 11.

[0077] Reference Figure 4 and Figure 5 , and the main body of the second anchor rod 12 is set in the unstable potential landslide body 94, and the end of the second anchor rod 12 is set in the stable potential sliding bed 96; that is, the effective tie length between the second anchor rod 12 and the stable potential sliding bed 96 is short, and the force between the second anchor rod 12 and the road slope stabilizing soil (potential sliding bed 96) is small.

[0078] Reference Figure 4 and Figure 5 By installing a reinforcement beam 3 at the end of the first and second anchor rods 11 and 12 away from the frame beam 2, the first and second anchor rods 11, 12, reinforcement beam 3, and longitudinal beam 22 in the frame beam 2 are formed into a frame structure. This tightens the potential landslide body 94 and the potential sliding bed 96 between the first and second anchor rods 11, 12, and increases the relative force between the potential landslide body 94 and the potential sliding bed 96. In other words, by adding the reinforcement beam 3 between the first and second anchor rods 11, 12, on the one hand, the force exerted by the stable soil on the unstable soil in the road slope is increased; on the other hand, the stable soil at the bottom of the road slope is used to anchor the second anchor rod 12, thereby improving the pull-out resistance of the second anchor rod 12 and reducing the risk of slippage of the potential landslide body 94.

[0079] Reference Figure 4 and Figure 5 When the potential landslide body 94 has a tendency to slide, the potential landslide body 94 applies a large pulling force to the second anchor rod 12; the first anchor rod 11 and the stable soil in the slide bed apply a pulling force away from the frame beam 2 to the second anchor rod 12 through the reinforcement beam 3, thereby improving the ability of the second anchor rod 12 to resist the pulling force of the frame beam 2 and the potential landslide body 94.

[0080] Reference Figure 4 and Figure 5 The friction between the first anchor rod 11 and the soil of the potential sliding bed 96 and the pressure of the potential sliding bed 96 on the first anchor rod 11 and the reinforcement beam 3 are improved; the pull-out resistance of the second anchor rod 12 is improved, so that the second anchor rod 12 and the frame beam 2 can anchor the potential landslide body 94 on the potential sliding bed 96, reducing the risk of landslide or local landslide on the road slope, so as to achieve the purpose of road slope reinforcement.

[0081] To sum up: in order to improve the anchoring effect of the anchor frame beam on the road slope soil, compared with the existing method of increasing the number of anchor rods 1 and increasing the length of the anchor rods 1; this application provides a new idea to solve the above problem, that is, by setting a reinforcement beam 3 in the deep soil of the road slope, and using the reinforcement beam 3 to connect the independent and dispersed anchor rods 1 into a whole, so as to improve the anchoring effect of the stable soil in the road slope on the anchor rod 1, improve the anchoring effect of the anchor frame beam on the unstable soil of the road slope, and reduce the risk of landslide on the road slope.

[0082] Example 2

[0083] Reference Figures 6 to 8 This embodiment 2 discloses the construction method of the road slope support structure in embodiment 1. In the prior art, there are many construction methods for anchor rods 1 and frame beams 2; and the reinforcement beam 3 is the main invention of this application; therefore, this embodiment briefly introduces the construction methods of anchor rods 1 and frame beams 2, and focuses on the construction method of reinforcement beams 3. The construction method of the road slope support structure includes the following steps:

[0084] Reference Figure 6 , Preparation before construction: Level the road slope and remove impurities on the surface of the road slope.

[0085] Reference Figure 6 Anchor hole 97 construction: The construction location of the anchor hole 97 is determined on the road slope. The anchor drilling rig drills the anchor hole 97 on the road slope and keeps on-site construction records. The anchor drilling rig includes a drill rod 4 and a drill bit. The drill bit is fixed to the drill rod 4. The anchor drilling rig's setting mechanism drives the drill rod 4 and the drill bit to move linearly. The anchor drilling rig's rotation mechanism drives the drill rod 4 and the drill bit to rotate to drill the anchor hole 97 on the road slope. When the anchor drilling rig's drill bit reaches the designed depth, high-pressure gas is used to remove impurities from the anchor hole 97. Among them, the anchor drilling rig and high-pressure gas cleaning equipment are existing technologies.

[0086] Reinforcement Channel 98 Construction: Refer to Figure 6 and Figure 7 The construction device also includes a guide assembly 6, a wire saw 7, a traction strand 5, and a reciprocating drive 8. The construction device is installed on a temporary workbench on the roadside slope. First, the drill bit on the drill rod 4 is replaced with the guide assembly 6. The guide assembly 6 includes a guide sleeve 61 and a guide wheel 62. The guide sleeve 61 is detachably connected to the drill rod 4 via bolts, and the guide wheel 62 abuts the traction strand 5.

[0087] Reference Figure 6 and Figure 7Two steel strands are provided: one traction strand 5 is provided in the first anchor hole 971, and the other traction strand 5 is provided in the second anchor hole 972. Both traction strands 5 are connected to a reciprocating drive device 8 provided on the road slope. A wire saw 7 is fixed between the two traction strands 5. The reciprocating drive device 8 drives the wire saw 7 to move back and forth. The anchor drilling rig presses the wire saw 7 into the soil, causing the wire saw 7 to cut the soil between the first anchor hole 971 and the second anchor hole 972.

[0088] Reference Figure 6 and Figure 7 In this embodiment, the reciprocating drive device 8 on the roadside slope includes a winch 81 and a cylinder 82 (or a linear reciprocating drive element such as an electric push rod). Two winches 81 and two cylinders 82 are provided. The winch 81 is connected to the traction strand 5 and is used to unwind the traction strand 5. The drive end of the cylinder 82 is provided with a sleeve, through which the traction strand 5 is passed, allowing the drive end of the cylinder 82 to slide in contact with the strand. The two cylinders 82 drive in opposite directions, pulling the wire saw 7 back and forth. The drill rod 4 of the anchor drill rig synchronously feeds the traction strand 5, causing the wire saw 7 to saw back and forth through the soil between the first and second anchor rods 11, 12, and driving the wire saw 7 toward the bottom of the anchor hole 97, until the wire saw 7 reaches the bottom of the first and second anchor rods 11, 12.

[0089] In other embodiments, the reciprocating drive device 8 on the road slope only includes a winch 81, so that the wire saw 7 is driven to reciprocate by alternately reeling and unreeling the two winches 81; coupled with the feeding action of the anchor drilling rig, the wire saw 7 is pulled back and forth to saw the soil between the first anchor rod 11 and the second anchor rod 12, and the wire saw 7 is driven to move toward the bottom of the anchor hole 97, so that the wire saw 7 moves to the bottom of the first anchor rod 11 and the second anchor rod 12.

[0090] Reference Figure 6 and Figure 7 When the wire saw 7 is sent to the designed depth, the anchor drilling rig drives the drill rod 4, the guide assembly 6, and the wire saw 7 to rotate, and the anchor drilling rig drives the wire saw 7 to move toward the bottom of the anchor hole 97; so that the wire saw 7 processes a reinforcement channel 98 between the first anchor hole 971 and the second anchor hole 972.

[0091] Reference Figure 7 and Figure 8Specifically, after the wire saw 7 is fed to the designed depth, it is positioned on the virtual center line connecting the first and second anchor rods 11 and 12. Subsequently, the anchor drill's rotation mechanism rotates the drill rod 4, causing the wire saw 7 to deviate from the virtual center line or to be positioned at a certain angle to the virtual center line, thereby allowing the wire saw 7 to machine the top side of the machining channel. Next, the anchor drill's feed mechanism drives the wire saw 7 away from the frame beam 2 to machine the reinforcement channel 98 to its desired depth.

[0092] Specifically, the combined effects of the anchor drill's feed mechanism on the wire saw 7, the anchor drill's rotation mechanism on the wire saw 7, and the reciprocating drive 8 on the wire saw 7 allow the wire saw 7 to create a reinforcement channel 98 deep within the soil at the roadside slope. In this embodiment, the cross-sectional area of the reinforcement channel 98 is greater than the cross-sectional areas of the first anchor hole 971 and the second anchor hole 972.

[0093] When the wire saw 7 reciprocates to saw the soil at the position of the reinforcement channel 98, the wire saw 7 will loosen the soil at the position of the reinforcement channel 98, and the wire saw 7 will pull part of the soil into the first anchor hole 971 or the second anchor hole 972, but part of the soil will remain in the reinforcement channel 98.

[0094] Reference Figure 6 and Figure 7 After the wire saw 7 has machined the reinforcement channel 98, one of the two winches 81 unwinds, while the other winch 81 rewinds; this allows the traction steel strand 5 to replace the position of the steel strand, that is, to be placed in the processing channel. Similar to the operation of the wire saw 7 machining the reinforcement channel 98, the anchor drill rig and the reciprocating drive device 8 cooperate to allow the traction steel strand 5 to move back and forth in the reinforcement channel 98. In this embodiment, the diameter of the traction steel strand 5 is larger than the diameter of the wire saw 7, so that the traction steel strand 5 has a stronger cleaning effect on the scum and soil in the reinforcement channel 98. At the same time, cleaning plates are spaced apart on the outer periphery of the traction steel strand 5 located in the reinforcement channel 98. The cleaning plates and the traction steel strand 5 can be tied together, fixed with sleeves, etc., so that the cleaning plates can be used to clean the scum and soil in the processing channel. Thereby, the soil of the reinforcement channel 98 is moved to the first anchor hole 971 and the second anchor hole 972 ; the staff can use equipment such as a sludge suction machine or a sludge suction pump to remove the floating slag soil in the first anchor hole 971 , the second anchor hole 972 and the reinforcement channel 98 .

[0095] After using the traction strand 5 to clear the scum from the reinforcement channel 98 and the bottom of the anchor hole 97, the wire saw 7 is pulled out of the ground and replaced with the reinforcement strand 32. The reinforcement strand 32 is then pulled into the first anchor hole 971, the reinforcement channel 98, and the second anchor hole 972. In this embodiment, the diameter of the reinforcement strand 32 is larger than that of the traction strand 5 to improve the connection strength between the reinforcement beam 3 and the first and second anchor rods 11, 12. In other embodiments, the traction strand 5 can also serve as the reinforcement strand 32.

[0096] Construction of anchor rod 1 and reinforcement beam 3: The steel bar rod body 14 is sent into the anchor hole 97, and the grouting pipe is simultaneously sent to the bottom of the anchor hole 97; the anchor rod 1 is grouted using a pressure grouting method, and the concrete mortar fills the first anchor hole 971, the reinforcement channel 98 and the second anchor hole 972; after grouting the anchor hole 97, it is cured for at least 7 days, and the concrete mortar in the anchor hole 97 solidifies and hardens into the anchor rod concrete body 13, and the concrete mortar in the reinforcement channel 98 solidifies and hardens into the reinforced concrete body 31.

[0097] Frame beam 2 construction: Frame beam 2 is fixed to the roadside slope, and the steel bar 14 of anchor rod 1 is fixedly connected to frame beam 2. Frame beam 2 can be cast-in-place or prefabricated. In this embodiment, when frame beam 2 is cast-in-place, workers excavate a frame groove on the roadside slope, tie the beam reinforcement cage, support the formwork, pour and maintain the frame beam 2.

[0098] Example 3

[0099] The difference between this embodiment 3 and embodiment 1 is that:

[0100] Reference Figure 9 and Figure 10 The bottom of the anchor hole 97 is provided with a bottom expansion hole section 973 to improve the anchoring effect of the stable soil (potential sliding bed 96) in the road slope on the second anchor rod 12; and strengthen the connection strength between the beam 3 and the first anchor rod 11 and the second anchor rod 12.

[0101] Reference Figure 9 and Figure 10 , along the direction away from the expanded bottom hole section 973, the soil around the expanded bottom hole section 973 includes a first soil body 101, a second soil body 102 and a third soil body 103 in sequence. The density of the second soil body 102 is greater than the density of the third soil body 103. The second soil body 102 is a mixture of soil and cement. A concrete protective layer 104 is also provided at the bottom of the anchor rod 1, and the concrete protective layer 104 covers the surface of the first soil body 101.

[0102] The implementation principle of a road slope support structure in an embodiment of the present application is as follows: In this embodiment, the second anchor hole 972 is taken as an example for explanation.

[0103] Reference Figure 9 and Figure 10 After the workers drilled out the second anchor hole 972, the bottom of the second anchor hole 972 was located in the stable potential slide bed 96. Powdered cement was delivered to the bottom of the second anchor hole 972. A heavy hammer 15 was then used to strike the soil at the bottom of the second anchor hole 972. The heavy hammer 15, pulled by the winch 81, struck the soil at the bottom of the second anchor hole 972 multiple times, allowing some of the cement to penetrate into the soil, forming the first soil body 101. Simultaneously, the impact of the heavy hammer 15 increased the density of the second soil body 102. The workers alternated between delivering cement to the bottom of the second anchor hole 972 and striking the soil at the bottom of the second anchor hole 972 with the heavy hammer 15.

[0104] Reference Figure 9 and Figure 10 When concrete mortar is delivered to the bottom of the second anchor hole 972 to form a concrete protective layer 104 at the bottom of the second anchor hole 972, the water content of the concrete mortar is relatively high, so that part of the water in the concrete penetrates into the first soil body 101, causing the cement and soil in the first soil body 101 to solidify into one. This improves the anchoring effect of the stable soil in the road slope on the second anchor rod 12, that is, it increases the strength of the potential landslide body 94 and the potential sliding bed 96, improves the pull-out resistance of the second anchor rod 12, and further reduces the risk of landslides and local landslides on the road slope.

[0105] Example 4

[0106] Reference Figure 11 and Figure 12 This embodiment 4 discloses the construction method of the road slope support structure in embodiment 3. The difference between this embodiment 4 and the construction invention in embodiment 2 is that it further includes the following steps:

[0107] Reference Figure 11 and Figure 12 Construction of the ground-reaming section of anchor hole 97: Workers replace the drill bit on drill rod 4 and use the reaming drill bit to reame the bottom of anchor hole 97, creating a bottom-reaming section 973 of anchor hole 97. This improves the anchoring effect of the stable soil mass in the roadside slope on anchor rod 1. This also facilitates the construction of reinforcement beam 3. Moving away from bottom-reaming section 973, the soil layers surrounding bottom-reaming section 973 sequentially include a first soil mass 101, a second soil mass 102, and a third soil mass 103.

[0108] Reference Figure 11 and Figure 12, soil construction at the bottom of the anchor hole 97: alternately deliver cement to the bottom of the anchor hole 97 and use a heavy hammer 15 to hammer the soil at the bottom of the anchor hole 97 to increase the density of the second soil 102 and allow the cement to embed into the first soil 101; then, pour concrete mortar into the bottom of the anchor hole 97 to form a concrete protective layer 104, the concrete protective layer 104 covers the surface of the first soil 101, and the moisture in the concrete mortar penetrates into the first soil 101 to harden the first soil 101.

[0109] Reference Figure 11 and Figure 12 In this embodiment, to reduce the impact of the weight 15 on the second anchor hole 972, the construction device also includes a casing 16. The casing 16 is inserted into the second anchor hole 972 and abuts the inner wall of the second anchor hole 972, anchoring the casing 16 to the soil at the roadside slope. The weight 15 penetrates the casing 16 to strike the soil at the bottom of the second anchor hole 972, thereby reducing its impact on the second anchor hole 972. In this embodiment, a fixing hole is formed at the end of the casing 16. A steel fiber 17 is inserted through the fixing hole and abuts the surface of the roadside slope to fix the position of the casing 16, ensuring a clearance between the casing 16 and the bottom of the second anchor hole 972. Furthermore, the inner wall of the casing 16 also has an arcuate guide 161. When the spherical weight 15 slides along the inner wall of the casing 16 and the surface of the arcuate guide 161, the weight 15 can strike the sidewall of the second bottom-enlarged hole section 9721. The staff can rotate the casing 16 to adjust the position of the arc-shaped guide 161, thereby adjusting the landing point of the heavy hammer 15 so that the heavy hammer 15 can cover most of the side walls of the second bottom-expanding hole section 9721.

[0110] Reference Figure 13 During the reinforced through-hole expansion construction, a first bottom expansion section 9711 is provided at the bottom of the first anchor hole 971, and a second bottom expansion section 9721 is provided at the bottom of the second anchor hole 972. The reinforced channel 98 is connected to both the bottom expansion section 973 and the second bottom expansion section 9721. The construction device also includes several buckets 18 detachably connected to the traction strand 5 and spaced apart along the traction strand 5. These buckets 18 are used to remove soil from the reinforced channel 98.

[0111] Reference Figure 13Bucket 18 includes connecting steel bars 181, a bucket body 182, and a connecting nut 183. Bucket body 182 has a connection hole for connecting steel bars 181 to pass through. Traction strand 5 is positioned within the space in the center of connecting steel bars 181. Connecting nut 183 is threadedly connected to connecting steel bars 181, so that connecting steel bars 181 and bucket body 182 tighten traction strand 5. As traction strand 5 reciprocates within reinforcement channel 98 to clear soil, bucket 18 facilitates clearing soil from reinforcement channel 98. At the same time, bucket 18 can also excavate new soil from the periphery of reinforcement channel 98, further expanding its cross-sectional area. Bucket 18 can also be equipped with teeth to enhance its excavation efficiency.

[0112] Example 5

[0113] The difference between this embodiment 5 and embodiment 3 is that:

[0114] Reference Figure 14 and Figure 15 At least two reinforcing steel strands 32 are provided, and several reinforcing steel strands 32 are twisted into a combined steel strand 33, and there are gaps between the several reinforcing steel strands 32 for concrete to pass through.

[0115] The implementation principle of a road slope support structure in the embodiment of the present application is as follows:

[0116] Reference Figure 14 and Figure 15 After multiple strands of reinforcing steel strands 32 are installed in the first anchor hole 971, the reinforcement channel 98, and the second anchor hole 972, one strand of reinforcing steel strand 32 is twisted into a combined steel strand 33, with gaps between the reinforcing steel strands 32 for concrete to pass through. This improves the engagement strength between the reinforcing steel strands 32 and the reinforced concrete body 31 and the anchor concrete body 13, thereby enhancing the connection strength between the reinforced beam 3 and the first anchor rod 11 and the second anchor rod 12.

[0117] Example 6

[0118] This embodiment 6 discloses the construction method of the road slope support structure in embodiment 5. This embodiment 6 is different from embodiment 4 in that it includes the following steps:

[0119] Reference Figure 14 and Figure 15 , construction of the combined steel strand 33: after the multiple reinforcing steel strands 32 are set in the first anchor hole 971, the reinforcement channel 98 and the second anchor hole 972, the reinforcing steel strand 32 is separated from the traction steel strand 5; then, the staff uses special twisting equipment on the road slope to twist the multiple reinforcing steel strands 32 into a combined steel strand 33, and there are gaps between the reinforcing steel strands 32 for concrete to flow.

[0120] Example 7

[0121] The difference between this Example 7 and Example 5 is that:

[0122] Referring to Figure 16 , the reinforcement beam 3 further includes a metal corrugated hose 34. The metal corrugated hose 34 is arranged in the reinforcement channel 98. The reinforced concrete body 31 is buried in the metal corrugated hose 34, and the metal corrugated hose 34 is provided with a through hole 341 for the concrete mortar to pass through.

[0123] Referring to Figure 16 , the construction process of the metal corrugated hose 34 is the same as that of the reinforcement steel strand 32. The staff can arrange the metal corrugated hose 34 in the processed reinforcement channel 98. Thus, the metal corrugated hose is used to restrain the concrete in the reinforcement beam 3 to improve the structural strength of the reinforcement beam 3 and the anchoring effect of the reinforcement beam 3 and the first anchor bolt 11 on the second anchor bolt 12. The metal corrugated hose 34 is provided with a through hole 341 for the concrete mortar to pass through, so that the concrete mortar can fill the space between the metal corrugated hose 34 and the side wall of the reinforcement channel 98.

[0124] Example 8

[0125] The difference between this Example 8 and the embodiment is that:

[0126] Referring to Figure 17 , in this embodiment, two reinforcement beams 3 are arranged at intervals, that is, the two reinforcement beams 3 and the first anchor bolt 11 and the second anchor bolt 12 enclose a "day" character structure; to further improve the anti-pulling performance of the second anchor bolt 12.

[0127] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A road slope support structure, which is arranged on a road slope and is used to reinforce the road slope; characterized by: The support structure comprises a frame beam (2), an anchor rod (1) and a reinforcement beam (3); the frame beam (2) is fixedly arranged on the surface of a road slope, and the frame beam (2) is used to constrain the soil of the road slope; the anchor rod (1) is inserted into the soil of the road slope, and the end of the anchor rod (1) away from the soil is fixedly connected to the frame beam (2); a plurality of anchor rods (1) are provided, and the plurality of anchor rods (1) are laid at intervals in the soil of the road slope; an anchor hole (97) is opened in the soil layer of the road slope, and the anchor hole (97) is used to accommodate the anchor rod (1); At least one reinforcement beam (3) is provided, and the reinforcement beam (3) is buried in the soil of the road slope, and the reinforcement beam (3) is provided on the side of the anchor rod (1) away from the frame beam (2), the anchor rod (1) includes a first anchor rod (11) and a second anchor rod (12) spaced apart, the anchor hole (97) includes a first anchor hole (971) and a second anchor hole (972), the first anchor hole (971) is used to accommodate the first anchor rod (11), and the second anchor hole (972) is used to accommodate the second anchor rod (12), and the reinforcement beam (3) is provided on the side of the anchor rod (1) away from the frame beam (2). The first end of the reinforcement beam (3) is integrally cast and fixed with the first anchor rod (11), and the other end of the reinforcement beam (3) is integrally cast and fixed with the second anchor rod (12). A reinforcement channel (98) is opened in the soil of the road slope, and the reinforcement channel (98) is used to accommodate the reinforcement beam (3); when the soil of the road slope has a sliding tendency, the soil of the road slope is divided into a potential landslide body (94) and a potential sliding bed (96) along the potential sliding surface (95), and the potential landslide body (94) has a tendency to slide along the potential sliding surface (95); the main portion of the first anchor rod (11) is provided with a reinforcement channel (98) in the soil of the road slope, and the reinforcement channel (98) is used to accommodate the reinforcement beam (3); when the soil of the road slope has a sliding tendency, the soil of the road slope is divided into a potential landslide body (94) and a potential sliding bed (96) along the potential sliding surface (95), and the potential landslide body (94) has a sliding tendency ...); the main portion of the first anchor rod (11) The reinforcement beam (3) comprises a reinforcement concrete body (31) and a reinforcement steel strand (32), wherein the reinforcement concrete body (31) is arranged in the reinforcement channel (98), the reinforcement steel strand (32) is buried in the reinforcement concrete body (31), one end of the reinforcement steel strand (32) is buried in the first anchor rod (11), and the other end of the reinforcement steel strand (32) is buried in the second anchor rod (12).

2. The road slope support structure according to claim 1, characterized in that: At least two strands of the reinforcing steel strands (32) are provided, and several strands of the reinforcing steel strands (32) are twisted into a combined steel strand (33), and gaps are provided between the several strands of the reinforcing steel strands (32) for concrete to pass through.

3. The road slope support structure according to claim 1, characterized in that: The reinforcement beam (3) further comprises a metal corrugated hose (34), the metal corrugated hose (34) being arranged in the reinforcement channel (98), the reinforcement concrete body (31) being buried in the metal corrugated hose (34), and the metal corrugated hose (34) being provided with a penetration hole (341) for concrete mortar to penetrate.

4. The road slope support structure according to claim 1, characterized in that: The bottom of the anchor hole (97) is provided with a bottom expansion hole section (973), and along the direction away from the bottom expansion hole section (973), the soil layers around the bottom expansion hole section (973) include a first soil body (101), a second soil body (102) and a third soil body (103) in sequence, the density of the second soil body (102) is greater than the density of the third soil body (103), and the second soil body (102) is a mixture of soil and cement; the bottom of the anchor rod (1) is also provided with a concrete protective layer (104), and the concrete protective layer (104) covers the surface of the first soil body (101).

5. A construction method for a road slope support structure according to any one of claims 1 to 4, characterized in that: The following steps are involved: Preparation before construction: level the road slope and remove impurities on the road slope surface; Anchor hole (97) construction: The construction position of the anchor hole (97) is determined on the road slope, and the anchor drilling machine drills the anchor hole (97) on the road slope, and the on-site construction record is kept; after the drill bit of the anchor drilling machine reaches the designed depth, high-pressure gas is used to remove impurities in the anchor hole (97) and out of the anchor hole (97); Reinforced channel (98) construction: An anchor drilling rig includes a drill rod (4) and a drill bit, and the drill bit is fixed on the drill rod (4); the construction device also includes a guide assembly (6), a wire saw (7), a traction steel strand (5) and a reciprocating drive device (8); the drill bit is replaced with a guide assembly (6), the guide assembly (6) includes a guide sleeve (61) and a guide wheel (62), the guide sleeve (61) is fixedly connected to the drill rod (4), and the guide wheel (62) is in contact with the traction steel strand (5); two steel strands are provided, one traction steel strand (5) is provided in the first anchor hole (971), and the other traction steel strand (5) is provided in the second anchor hole (972), and both of the traction steel strands (5) are connected to the reciprocating drive device (8) provided on the road slope; the wire saw (7) is fixed between the two traction steel strands (5), and the reciprocating drive device (8) drives the wire saw (7) reciprocating movement, the anchor drilling rig presses the wire saw (7) into the soil, so that the wire saw (7) cuts the soil between the first anchor hole (971) and the second anchor hole (972); when the wire saw (7) is sent to the designed depth, the anchor drilling rig drives the drill rod (4), the guide assembly (6), and the wire saw (7) to rotate, and the anchor drilling rig drives the wire saw (7) to move toward the bottom of the anchor hole (97); so that the wire saw (7) is in the first anchor hole (971) A reinforcement channel (98) is machined between the first anchor hole (971) and the second anchor hole (972), and the traction steel strand (5) is used to clean the scum in the reinforcement channel (98) and the scum at the bottom of the anchor hole (97); the wire saw (7) is pulled out of the ground, and the wire saw (7) is replaced with the reinforcement steel strand (32), and then the reinforcement steel strand (32) is pulled into the first anchor hole (971), the reinforcement channel (98) and the second anchor hole (972); Construction of anchor rods (1) and reinforcement beams (3): The steel bar body (14) is inserted into the anchor hole (97), and the grouting pipe is simultaneously inserted into the bottom of the anchor hole (97); the anchor rod (1) is grouted by pressure grouting, and the first anchor hole (971), the reinforcement channel (98), and the second anchor hole (972) are filled with concrete mortar; after grouting the anchor hole (97), the concrete mortar in the anchor hole (97) solidifies and hardens to form the anchor rod concrete body (13), and the concrete mortar in the reinforcement channel (98) solidifies and hardens to form the reinforcement concrete body (31); Construction of the frame beam (2): The frame beam (2) is fixed on the road slope, and the steel bar body (14) of the anchor rod (1) is fixedly connected to the frame beam (2).

6. The construction method of the road slope support structure according to claim 5, characterized in that: The following steps are also included: Construction of the ground expansion section of the anchor hole (97): replacing the drill bit on the drill rod (4), and using the expansion drill bit to expand the bottom of the anchor hole (97) to process the expanded bottom hole section (973) of the anchor hole (97), and along the direction away from the expanded bottom hole section (973), the soil layers around the expanded bottom hole section (973) include a first soil body (101), a second soil body (102) and a third soil body (103) in sequence; Construction of the soil at the bottom of the anchor hole (97): alternately delivering cement to the bottom of the anchor hole (97) and using a heavy hammer (15) to hammer the soil at the bottom of the anchor hole (97) to increase the density of the second soil (102) and allow the cement to embed into the first soil (101); then, pouring concrete mortar into the bottom of the anchor hole (97) to form a concrete protective layer (104), the concrete protective layer (104) covering the surface of the first soil (101), and the moisture in the concrete mortar penetrating into the first soil (101) to harden the first soil (101).

7. The construction method of the road slope support structure according to claim 5, characterized in that: The following steps are also included: Reinforced through-hole expansion construction: a first bottom expansion hole section (9711) is provided at the bottom of the first anchor hole (971), a second bottom expansion hole section (9721) is provided at the bottom of the second anchor hole (972), and the reinforcement channel (98) is connected to the first bottom expansion hole section (9711) and the second bottom expansion hole section (9721); the construction device also includes a plurality of buckets (18), the buckets (18) are detachably connected to the traction steel strand (5), and the plurality of buckets (18) are arranged at intervals along the traction steel strand (5), and the buckets (18) are used to remove soil in the reinforcement channel (98).

8. The construction method of the road slope support structure according to claim 7, characterized in that: The following steps are also included: Construction of the combined steel strand (33): After the multiple strands of reinforcing steel strand (32) are set in the first anchor hole (971), the reinforcement channel (98) and the second anchor hole (972), the reinforcing steel strand (32) is separated from the traction steel strand (5), and then the multiple strands of reinforcing steel strand (32) are twisted into a combined steel strand (33), and there are gaps between the reinforcing steel strands (32) for concrete to flow.

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