A rock slope protection structure and construction method under highway traffic maintenance conditions

Abstract

This application relates to a rock slope protection structure and construction method under highway maintenance conditions, belonging to the technical field of boulders slope construction. It includes a reinforced cage retaining wall and a passive flexible protective net. The reinforced cage retaining wall is located above the passive flexible protective net on an existing platform of the slope. The retaining wall comprises a rectangular, open-topped reinforcing cage and rubble filled within it. The passive flexible protective net includes a base, steel columns, and a steel rope net. The base is fixedly installed on the slope, the steel columns are mounted on the base, and the steel rope net is attached to the steel columns. The slope protection structure also includes a removal component for removing boulders attached to and piled on the steel rope net. This application has the advantage of improving the slope protection effect.

Description

Technical Field

[0001] This application relates to the field of rockfall slope construction technology, and in particular to a rock slope protection structure and construction method under highway traffic maintenance conditions. Background Technology

[0002] Two conditions are necessary for a rockfall to occur: the source of the rocks and the triggering factor. Source: A large amount of loose, exposed rock exists on the slope, and the slope is high and steep with a large potential energy reserve. Triggering factors: Disruption of the self-stabilizing slope ratio, disturbance from slope excavation, and natural landslides caused by heavy rainfall, wind, snowmelt, freeze-thaw cycles, etc. There are four main forms of rockfall movement on slopes: sliding, freefall, collision and bounce, and rolling. Because many factors influence rockfalls on slopes—including the size of the rocks, the timing of the event, movement parameters, and trajectory—the estimation of the rockfall trajectory and energy is very complex. Therefore, when constructing below the slope, slope protection is necessary to protect construction workers and existing buildings.

[0003] Currently, the most commonly used protective measures are rockfall barriers and passive flexible protective nets. Rockfall barriers rely on their own rigidity and strength to resist the impact of rolling rocks on slopes. They are typically constructed from grouted rubble masonry, reinforced gabions, or cast-in-place concrete. Their greatest advantage is their clear interception range, simple structure, and ease of operation; theoretically, their structural dimensions can be large enough to intercept rolling rocks of any size. Passive protective systems are a newer form of protection. They are primarily composed of high-strength flexible metal mesh such as wire rope nets or ring nets, supported by steel columns in a fence-like flexible rockfall barrier structure. Their main advantages are the flexibility of the structure, its ability to overcome rigidity, good terrain adaptability, convenient and quick construction, and minimal construction interference, making them widely used in engineering projects.

[0004] However, rockfall retaining walls rely on rigid structures to resist dynamic impacts, requiring the construction of massive rockfall retaining structures on hillsides. Passive protection systems have limited energy to protect against rolling rocks, and large-energy rolling rocks can easily damage flexible protection systems. They can only protect against a small number of rolling rocks, and a large number of rolling rocks can easily cause the entire flexible protection system to be destroyed. Therefore, the above two protection methods are generally not very effective in protecting slopes. Summary of the Invention

[0005] To improve the protection effect on slopes, this application provides a rock slope protection structure and construction method under highway traffic maintenance conditions.

[0006] Firstly, this application provides a rock slope protection structure under highway maintenance conditions, which adopts the following technical solution: A rock slope protection structure for highway maintenance includes a reinforced cage retaining wall and a passive flexible protective net. The reinforced cage retaining wall is located above the passive flexible protective net and is situated on an existing platform of the slope. The reinforced cage retaining wall comprises a rectangular reinforcing cage with an open top and rubble filled within the cage. The passive flexible protective net includes a base, steel columns, and a steel rope net. The base is fixedly installed on the slope, the steel columns are installed on the base, and the steel rope net is attached to the steel columns. The slope protection structure also includes a removal component for removing rubble that is attached to and piled on the steel rope net.

[0007] Optionally, the removal component includes a winch installed on the upper reinforced concrete retaining wall and a wire rope wound on the winch. The free end of the wire rope is located in the middle of the steel rope net. The protective state of the steel rope net is naturally relaxed and facing away from the reinforced concrete retaining wall. The state in which the steel rope net removes the rolling stones is facing the reinforced concrete retaining wall and is conical.

[0008] Optionally, the removal component further includes an installation rod disposed between adjacent steel columns. The installation rod is located on the side of the steel column away from the base. The upper part of the steel rope net is disposed on the installation rod. The installation rod is provided with a lever. The lever is located on the side of the steel rope net away from the reinforcing cage retaining wall. The lever is provided with a gripping component. The gripping component is used to grip the steel rope net onto the installation rod when the steel rope net is in a conical state. The lever is movably disposed on the installation rod. The installation rod is provided with a driving device. The driving device is used to drive the lever to move and keep the steel rope net in a taut state.

[0009] Optionally, the gripping member includes a fixed rod disposed at the end of the actuating rod, the initial length direction of the fixed rod being parallel to the length direction of the actuating rod, the fixed rod being rotatably disposed on the actuating rod, the rotation direction of the fixed rod being perpendicular to the axial direction of the actuating rod, and the gripping member further includes a first motor disposed on the actuating rod for driving the fixed rod to rotate.

[0010] Optionally, the actuating lever is rotatably mounted on the mounting rod, and the rotation axis of the actuating lever is parallel to the length direction of the mounting rod. The driving device includes a first driving member for driving the actuating lever to rotate. A mounting seat is rotatably mounted on the mounting rod, and the actuating lever is located on the mounting seat. The rotation axis of the mounting seat is parallel to the ground and perpendicular to the length direction of the mounting rod. The driving device also includes a second driving member for driving the mounting seat to rotate.

[0011] Optionally, the mounting base is slidably mounted on the mounting rod, the mounting base slides along the length of the mounting rod, and the mounting rod is provided with a third driving member for driving the mounting base to slide.

[0012] Optionally, the vertical cross-section of the mounting rod is rectangular, and the surface of the mounting rod facing the ground has a mounting groove. The length direction of the mounting groove is parallel to the length direction of the mounting rod. The mounting seat is located in the mounting groove. When the actuating rod is in a state parallel to the mounting rod, the actuating rod is located in the mounting groove.

[0013] Optionally, the mounting rod has multiple notches on the side facing the steel cage retaining wall. The width of the notches is greater than the diameter of the actuating rod. The multiple notches are spaced apart along the length of the mounting rod. The notches are connected to the mounting groove. A closing plate for closing the notches is slidably provided on the mounting rod and located within the notches.

[0014] Optionally, the sidewalls on both sides of the notch are provided with sliding grooves for the closing plate to slide, and the mounting rod is provided with a groove for the closing plate to slide into. A spring is provided in the groove, and the closing plate is fixedly mounted on the end of the spring.

[0015] Secondly, this application provides a construction method for rock slope protection under highway traffic maintenance conditions, adopting the following technical solution: Optionally, a method for constructing rock slope protection under highway traffic maintenance conditions, using the rock slope protection structure as described in claim 1, further includes: S1: Loose material along the slope excavation line is removed to allow it to collapse naturally and form a stable slope. Within the excavation area, the slope is strictly protected according to the principle of one level of protection per level of excavation. Slope protection is completed in a timely manner after excavation. Passive flexible protection netting is constructed after the uppermost platform is completed. Then, a steel cage retaining wall is constructed on the next higher platform. S2: Passive flexible protective netting construction: anchor bolt and steel column foundation positioning, then positioning the anchor bolt and steel column base according to the actual site conditions, followed by excavation of the foundation pit and concrete pouring, then installation of the base and anchor bolts. After the concrete strength reaches the design requirements, install the steel columns and anchor ropes, insert the steel column base into the base, fix it with bolts, and install the anchor ropes for adjustment; install support ropes, connect and tighten the support ropes at the upper and lower ends of the steel columns, and finally hang the steel rope netting. S3; Construction of reinforced gabion retaining wall: The steel reinforcement is welded at the steel processing plant, transported to the site by a transport vehicle and placed on the existing platform. Excavators and manual labor are used to fill the gabions with stones. The reinforced gabions are constructed in layers and in a step-by-step manner. S4: The winch is installed on the retaining wall of the steel cage and the wire rope is connected to the steel rope net.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. A combination of reinforced cage retaining walls and passive flexible protective nets is used to protect the slope. The reinforced cage retaining walls are positioned above the passive flexible protective nets, allowing them to block large boulders while the passive flexible protective nets block smaller boulders, thus improving the slope protection effect. Furthermore, the reinforced cage retaining walls are installed at the location where large boulders fall, with the passive flexible protective nets located on both sides and below the retaining walls to block smaller boulders. This combined protection method shortens the length of the retaining walls, reduces construction costs, and improves construction efficiency. 2. After the passive flexible protective net blocks small falling rocks, some rocks accumulate on the steel rope net, while others become stuck inside. When the next batch of rocks falls and impacts the steel rope net, the accumulated and stuck rocks may rebound, potentially causing them to fall from both sides of the net, posing a danger to workers below. Furthermore, the rebounding rocks may land on the slope, increasing the risk of secondary slope collapse. At this point, a winch is activated to wind up the steel wire rope, which moves the steel rope net in a cone shape. During this process, the rocks stuck on the net fall off and the accumulated rocks are more evenly distributed on the slope, reducing the likelihood of secondary rockfalls. Moreover, once the rocks are removed from the net, it restores its protective effect against falling rocks, improving the slope's protection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a rock slope protection structure under highway traffic maintenance conditions according to an embodiment of this application; Figure 2 This is a cross-sectional view of an installation rod in a rock slope protection structure under highway traffic maintenance conditions, according to an embodiment of this application. Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle; Figure 4 yes Figure 2 Enlarged schematic diagram of part B; Figure 5 This is a schematic diagram of the passive flexible protection net in a rock slope protection structure under highway traffic maintenance conditions, according to an embodiment of this application. Figure 6 This is a cross-sectional view of an installation rod in a rock slope protection structure under highway traffic maintenance conditions, according to an embodiment of this application. Figure 7 yes Figure 6 An enlarged schematic diagram of section C.

[0018] Explanation of reference numerals in the attached drawings: 1. Reinforced cage retaining wall; 2. Passive flexible protective net; 21. Base; 22. Steel column; 23. Steel rope net; 3. Removal component; 31. Winch; 32. Steel wire rope; 33. Mounting rod; 34. Actuating rod; 35. Fixing rod; 36. First motor; 4. Mounting seat; 41. Base; 42. Mounting plate; 5. Second motor; 6. Third motor; 7. Fourth motor; 8. Lead screw; 9. Mounting groove; 10. Notch; 11. Closing plate; 12. Groove; 13. Spring. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0020] This application discloses a rock slope protection structure under highway traffic maintenance conditions. (Refer to...) Figure 1 The rock slope protection structure under highway maintenance conditions includes a reinforced cage retaining wall 1 and a passive flexible protection net 2. The reinforced cage retaining wall 1 is located above the passive flexible protection net 2 and is situated on an existing platform of the slope. The reinforced cage retaining wall 1 includes a rectangular reinforced cage with an open top and rubble filled inside the cage. The reinforced cage is installed on the existing platform using a stacking structure, and adjacent reinforced cages are connected by welding or binding reinforcing bars. The passive flexible protection net 2 includes a base 21, steel columns 22, and a steel rope net 23. The base 21 is fixedly installed on the slope, the steel columns 22 are installed on the base 21, and the steel rope net 23 is attached to the steel columns 22. The slope protection structure also includes a removal component 3, which is used to remove the rubble attached to and stacked on the steel rope net 23.

[0021] The slope is protected by a combination of a reinforced concrete retaining wall 1 and a passive flexible protective net 2. The retaining wall 1 is positioned above the net 2, allowing it to block large boulders while the net blocks smaller ones, thus improving slope protection. Furthermore, the retaining wall 1 is installed at the point where large boulders fall, with the net 2 positioned on either side and below it to block smaller rocks. Simultaneously, when a significant amount of rocks accumulate in front of the wire rope net 23, a winch 31 is activated to wind up the wire rope 32. This rope moves the wire rope net 23 in a conical shape. During this process, rocks stuck on the net fall off, causing them to settle more evenly on the slope, reducing the likelihood of secondary falls.

[0022] Reference Figure 1In this embodiment, the removal component 3 includes a winch 31 mounted on the upper reinforced concrete retaining wall 1 and a wire rope 32 wound on the winch 31. The winch 31 is fixed to the reinforced concrete cage with bolts. The free end of the wire rope 32 is fixedly mounted in the middle of the steel rope net 23. The protective state of the steel rope net 23 is naturally relaxed and facing away from the reinforced concrete retaining wall 1. The state of the steel rope net 23 removing the falling stones is facing the reinforced concrete retaining wall 1 and is conical. When there are many falling stones piled up in front of the steel rope net 23 or many falling stones stuck in the steel rope net 23, the winch 31 is started. The winch 31 winds up the wire rope 32, and the wire rope 32 drives the steel rope net 23 to move towards the reinforced concrete retaining wall 1, thereby removing the falling stones in front of the steel rope net 23 and removing the falling stones stuck in the steel rope net 23. The operation is simple and convenient.

[0023] Reference Figure 2 and Figure 3 Furthermore, the removal component 3 also includes an installation rod 33 disposed between adjacent steel columns 22. The length direction of the installation rod 33 is perpendicular to the length direction of the steel column 22. The installation rod 33 is located on the side of the steel column 22 away from the base 21. The upper part of the steel rope net 23 is disposed on the installation rod 33. A toggle rod 34 is disposed on the installation rod 33. The toggle rod 34 is located on the side of the steel rope net 23 away from the reinforcing cage retaining wall 1. A gripping component is disposed on the toggle rod 34. The gripping component is used to grip the steel rope net 23 onto the installation rod 33 when the steel rope net 23 is in a conical state. The gripping component includes a fixing rod 35 disposed at the end of the toggle rod 34. Multiple fixing rods 35 are disposed along the... The actuating rods 34 are evenly arranged circumferentially on their end faces. The initial length direction of the fixed rods 35 is parallel to the length direction of the actuating rods 34. The fixed rods 35 are rotatably mounted on the actuating rods 34, and the rotation direction of the fixed rods 35 is perpendicular to the axis of the actuating rods 34. The gripping component also includes a first motor 36 mounted on the actuating rods 34 for driving the fixed rods 35 to rotate. When gripping the steel rope net 23, the end of the actuating rods 34 approaches the steel rope net 23 and passes through it. Then, the first motor 36 is started, and the first motor 36 drives the fixed rods 35 to rotate. The fixed rods 35 rotate to a state perpendicular to the actuating rods 34, thereby hanging the steel rope net 23 on the actuating rods 34. The operation is simple and convenient.

[0024] Reference Figure 2 and Figure 4Furthermore, the actuating lever 34 is movably mounted on the mounting rod 33, and a driving device is provided on the mounting rod 33. The driving device is used to drive the actuating lever 34 to move and keep the steel rope net 23 in a taut state. In this embodiment, the actuating lever 34 is rotatably mounted on the mounting rod 33, and the rotation axis of the actuating lever 34 is parallel to the length direction of the mounting rod 33. The driving device includes a first driving member for driving the rotation of the actuating lever 34. A mounting seat 4 is rotatably mounted on the mounting rod 33, and the actuating lever 34 is located on the mounting seat 4. The first driving member includes a second motor 5 mounted on the mounting seat 4, and the length direction of the output shaft of the second motor 5 is parallel to the length direction of the mounting rod 33. The lever 34 is fixedly mounted on the output shaft of the second motor 5. The length direction of the lever 34 is perpendicular to the length direction of the output shaft of the second motor 5. The rotation axis of the mounting base 4 is parallel to the ground and perpendicular to the length direction of the mounting rod 33. The driving device also includes a second driving member for driving the mounting base 4 to rotate. The mounting base 4 includes a base 41 mounted on the mounting rod 33 and a mounting plate 42 rotatably mounted on the base 41. The second motor 5 is located on the mounting plate 42. The second driving member includes a third motor 6 mounted on the base 41. The length direction of the output shaft of the third motor 6 is perpendicular to the length direction of the output shaft of the second motor 5. The mounting plate 42 is coaxially mounted on the output shaft of the third motor 6.

[0025] When adjusting the position of the lever 34, the third motor 6 is started. The third motor 6 drives the mounting plate 42 to rotate. The rotation of the mounting plate 42 adjusts the position of the second motor 5. Then the second motor 5 is started, and the second motor 5 drives the lever 34 to rotate. The lever 34 rotates until it passes through the steel rope net 23, and then the steel rope net 23 is grabbed onto the lever 34 by the fixing rod 35. Then the second motor 5 drives the lever 34 to rotate downwards, and the lever 34 causes the steel rope net 23 to be in a taut state. Then the first motor 36 drives the fixing rod 35 to rotate, and the fixing rod 35 separates from the steel rope net 23, thereby causing the steel rope net 23 to vibrate, further removing the fallen rocks stuck on the steel rope net 23.

[0026] Reference Figure 2 To facilitate the replacement of the vibration points of the steel rope mesh 23, the mounting base 4 is slidably mounted on the mounting rod 33. The mounting base 4 slides along the length of the mounting rod 33. The mounting rod 33 is equipped with a third driving component for driving the mounting base 4 to slide. The third driving component includes a fourth motor 7 mounted on the mounting rod 33. A lead screw 8 is coaxially mounted on the output shaft of the fourth motor 7. The base 41 is threadedly connected to the lead screw 8. When the fourth motor 7 is started, the fourth motor 7 drives the lead screw 8 to rotate. The rotation of the lead screw 8 causes the base 41 to slide. The sliding of the base 41 causes the actuating rod 34 to move, thereby replacing the vibration points of the steel rope mesh 23.

[0027] Reference Figure 2 , Figure 6 and Figure 7To reduce the possibility of falling rocks damaging the actuating rod 34, the vertical cross-section of the mounting rod 33 is rectangular. The surface of the mounting rod 33 facing the ground has a mounting groove 9, the length direction of which is parallel to the length direction of the mounting rod 33. The mounting seat 4 is located in the mounting groove 9. When the actuating rod 34 is in a state parallel to the mounting rod 33, the actuating rod 34 is located in the mounting groove 9. Furthermore, the fourth motor 7 and the lead screw 8 are both located in the mounting groove 9, the length direction of which is parallel to the length direction of the mounting groove 9. The actuating rod 34 is initially housed in the mounting groove 9, reducing the possibility of falling rocks impacting the actuating rod 34, the lead screw 8, and the fourth motor 7.

[0028] Reference Figure 2 , Figure 6 and Figure 7 To facilitate the rotation of the actuating rod 34 towards the steel rope mesh 23, the mounting rod 33 has multiple notches 10 on the side facing the reinforcing cage retaining wall 1. The width of the notches 10 is greater than the diameter of the actuating rod 34. The multiple notches 10 are arranged at intervals along the length of the mounting rod 33. The notches 10 are connected to the mounting groove 9. A closing plate 11 for closing the notch 10 is slidably installed on the mounting rod 33 and located within the notch 10. The side walls on both sides of the notch 10 have grooves for the closing plate 11 to slide. Dovetail blocks are provided on both sides of the closing plate 11, and the groove is a dovetail groove. When the actuating rod 34 rotates towards the steel rope mesh 23, the actuating rod 34 abuts against the lower end of the closing plate 11, and drives the closing plate 11 to slide along the groove, thereby facilitating the actuating rod 34 to approach the steel rope mesh 23.

[0029] Reference Figure 2 , Figure 6 and Figure 7 To facilitate the closing of the notch 10 by the sliding of the closing plate 11 after the actuating rod 34 enters the mounting groove 9, the mounting rod 33 is provided with a groove 12 for the closing plate 11 to slide into. A spring 13 is provided in the groove 12, and the closing plate 11 is fixedly installed at the end of the spring 13. After the actuating rod 34 is disengaged from the closing plate 11, the closing plate 11 is driven to slide and close the notch 10 under the action of the elastic force of the spring 13. The operation is simple and convenient.

[0030] The implementation principle of a rock slope protection structure under highway traffic maintenance conditions in this application embodiment is as follows: The slope is protected by a combination of a reinforced concrete retaining wall 1 and a passive flexible protective net 2. The reinforced concrete retaining wall 1 is positioned above the passive flexible protective net 2, which allows the retaining wall 1 to block large boulders while the passive flexible protective net 2 blocks smaller boulders, thus improving the slope protection effect. Furthermore, the reinforced concrete retaining wall 1 is installed at the location where large boulders fall, and the passive flexible protective net 2 is located on both sides and below the retaining wall 1 to block small boulders. At the same time, when a large number of boulders accumulate in front of the steel rope net 23, the winch 31 is started to wind up the steel wire rope 32. The steel wire rope 32 moves the steel rope net 23 into a cone shape. During this process, the boulders stuck on the steel rope net 23 fall off the steel rope net 23 and cause the boulders accumulated on the steel rope net 23 to accumulate more stably on the slope, thereby reducing the possibility of secondary boulders falling. After the steel rope net 23 is pulled into a cone shape by the steel wire rope 32, the third motor 6 is started. The third motor 6 drives the mounting plate 42 to rotate. The rotation of the mounting plate 42 adjusts the position of the second motor 5. The second motor 5 is then started. The second motor 5 drives the actuating rod 34 to rotate. The actuating rod 34 rotates until it passes through the steel rope net 23. Then, the fixed rod 35 grabs the steel rope net 23 onto the actuating rod 34. Subsequently, the second motor 5 drives the steel rope net 23 to vibrate and remove the fallen rocks from the steel rope net 23.

[0031] This application discloses a construction method for rock slope protection under highway traffic maintenance conditions. The method utilizes a rock slope protection structure suitable for highway traffic maintenance conditions and further includes: S1: Loose material along the slope excavation line is removed to allow it to collapse naturally and form a stable slope. Within the excavation range, the slope is strictly protected according to the principle of one level of protection per level of excavation. Slope protection is completed in a timely manner after excavation. After the uppermost platform is completed, a passive flexible protection net 2 is constructed. Then, a steel cage retaining wall 1 is constructed on the next higher platform. S2: Construction of passive flexible protective netting 2: Positioning of anchor rods and steel columns 22 foundations, then positioning of anchor rods and steel column 22 base 21 according to actual site conditions, followed by excavation of the foundation pit and concrete pouring, installation of base 21 and anchor rods, installation of steel columns 22 and anchor ropes after the concrete strength reaches the design requirements, insertion of steel column 22 base 21 into base 21, bolt fixing, and installation of anchor ropes for adjustment; installation of support ropes, connecting and tightening support ropes at both ends of steel column 22, and finally hanging of steel rope netting 23; S3; Construction of reinforced gabion retaining wall 1: The steel reinforcement is welded at the steel processing plant, transported to the site by a transport vehicle and placed on the existing platform. Excavators and manual labor are used to fill the gabions with stones. The reinforced gabions are constructed in layers and in a step-by-step manner. S4: The winch 31 is installed on the steel cage retaining wall 1, and the wire rope 32 is connected to the steel rope net 23.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rock slope protection structure under highway traffic maintenance conditions, characterized in that: The structure includes a reinforced concrete retaining wall (1) and a passive flexible protective net (2). The reinforced concrete retaining wall (1) is located above the passive flexible protective net (2) and is situated on an existing platform of the slope. The reinforced concrete retaining wall (1) comprises a rectangular reinforced concrete cage with an open top and rubble filled within the cage. The passive flexible protective net (2) comprises a base (21), steel columns (22), and a steel rope net (23). The base (21) is fixedly installed on the slope, the steel columns (22) are installed on the base (21), and the steel rope net (23) is attached to the steel columns (22). The slope protection structure also includes a removable component (3) for relocating... The removal component (3) includes a winch (31) mounted on the upper steel cage retaining wall (1) and a wire rope (32) wound on the winch (31). The free end of the wire rope (32) is located in the middle of the steel rope net (23). The protective state of the steel rope net (23) is naturally relaxed and facing away from the steel cage retaining wall (1). The state of the steel rope net (23) removing the rolling stones is facing the steel cage retaining wall (1) and is conical. The removal component (3) also includes an installation rod (33) set between adjacent steel columns (22). The installation rod (33) is located on the steel column (22) away from the base (21). On one side of the steel rope net (23), the upper part of the steel rope net (23) is set on the mounting rod (33). The mounting rod (33) is provided with a lever (34). The lever (34) is located on the side of the steel rope net (23) away from the steel cage retaining wall (1). The lever (34) is provided with a gripping member. The gripping member is used to grip the steel rope net (23) onto the mounting rod (33) when the steel rope net (23) is in a conical state. The lever (34) is movably set on the mounting rod (33). The mounting rod (33) is provided with a driving device. The driving device is used to drive the lever (34) to move and make the steel rope net (23) taut. The gripping member includes a... A fixed rod (35) is placed at the end of the actuating lever (34). The initial length direction of the fixed rod (35) is parallel to the length direction of the actuating lever (34). The fixed rod (35) is rotatably mounted on the actuating lever (34). The rotation direction of the fixed rod (35) is perpendicular to the axial direction of the actuating lever (34). The gripping member also includes a first motor (36) mounted on the actuating lever (34) for driving the fixed rod (35) to rotate. The actuating lever (34) is rotatably mounted on the mounting rod (33). The rotation axis of the actuating lever (34) is parallel to the length direction of the mounting rod (33). The driving device includes a first driving member for driving the actuating lever (34) to rotate.A mounting base (4) is rotatably mounted on the mounting rod (33), and the actuating rod (34) is located on the mounting base (4). The rotation axis of the mounting base (4) is parallel to the ground and perpendicular to the length direction of the mounting rod (33). The driving device further includes a second driving member for driving the mounting base (4) to rotate.

2. The rock slope protection structure under highway traffic maintenance conditions according to claim 1, characterized in that: The mounting base (4) is slidably disposed on the mounting rod (33), and the mounting base (4) slides along the length direction of the mounting rod (33). A third driving member for driving the mounting base (4) to slide is provided on the mounting rod (33).

3. The rock slope protection structure under highway traffic maintenance conditions according to claim 1, characterized in that: The vertical cross-section of the mounting rod (33) is rectangular. The mounting rod (33) has a mounting groove (9) on the surface facing the ground. The length direction of the mounting groove (9) is parallel to the length direction of the mounting rod (33). The mounting seat (4) is located in the mounting groove (9). When the actuating rod (34) is in a state parallel to the mounting rod (33), the actuating rod (34) is located in the mounting groove (9).

4. The rock slope protection structure under highway traffic maintenance conditions according to claim 3, characterized in that: The mounting rod (33) has multiple notches (10) on the side facing the steel cage retaining wall (1). The width of the notches (10) is greater than the diameter of the actuating rod (34). The multiple notches (10) are arranged at intervals along the length of the mounting rod (33). The notches (10) are connected to the mounting groove (9). A closing plate (11) for closing the notches (10) is slidably provided on the mounting rod (33) and located in the notches (10).

5. A rock slope protection structure under highway traffic maintenance conditions according to claim 4, characterized in that: The sidewalls on both sides of the notch (10) are provided with sliding grooves for the closing plate (11) to slide, and the mounting rod (33) is provided with a groove (12) for the closing plate (11) to slide into. A spring (13) is provided in the groove (12), and the closing plate (11) is fixedly installed at the end of the spring (13).

6. A construction method for rock slope protection under highway traffic maintenance conditions, using the rock slope protection structure under highway traffic maintenance conditions as described in claim 1, characterized in that: Also includes: S1: Loose bodies along the slope excavation line are removed to allow them to collapse naturally and form a stable slope. Within the excavation range, the slope is strictly protected according to the principle of one level of excavation and one level of protection. After the excavation is completed, the slope protection is completed in a timely manner. After the uppermost platform is completed, a passive flexible protection net is constructed (2); then a steel cage retaining wall is constructed on the uppermost platform (1). S2: Construction of passive flexible protective net (2), positioning of anchor rods and steel column (22) foundation, positioning of anchor rods and steel column (22) base (21) position according to actual site conditions, excavation of foundation pit and concrete pouring, installation of base (21) and anchor rods, installation of steel column (22) and anchor rope after concrete strength reaches design requirements, insertion of steel column (22) base (21) into base (21), bolt fixing, installation of anchor rope for debugging; installation of support rope, connection and tightening of support rope at both ends of steel column (22), and finally hanging of steel rope net (23); S3; Reinforcing steel cage retaining wall (1) construction, the steel reinforcement construction is completed by welding at the steel reinforcement processing plant, the transport vehicle is transported to the site and placed on the existing platform, the excavator cooperates with the manual labor to fill the stone cage with stones, the reinforcing steel cage is constructed in layers, and the step-by-step advancement is carried out; S4: The winch (31) is installed on the steel cage retaining wall (1) and the wire rope (32) is connected to the steel rope net (23).

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