Anti-collision wall structure for slope rockfall protection

Abstract

The invention relates to the technical field of side slope treatment, and discloses an anti-collision wall structure for side slope rockfall protection. A foundation pit is excavated at a high side slope toe, an anti-collision wall body is installed in a building area of the foundation pit, and a buffer area is additionally arranged, so that rockfall preferentially passes through the buffer area for buffering when falling to the high side slope toe; kinetic energy of fallen rocks is absorbed and dissipated, impact force of the fallen rocks is reduced, the risk that the fallen rocks bounce over the anti-collision wall body after falling to the ground is reduced, and the number of the fallen rocks bouncing over the anti-collision wall body after falling to the ground is reduced. Meanwhile, after falling rocks are buffered, the impact force is small when the falling rocks collide with the anti-collision wall body, the falling rocks are effectively prevented from colliding with factory buildings, a solid barrier is provided for the factory buildings, and therefore the falling rocks are effectively prevented from colliding with the factory buildings, and the safety of personnel and equipment in a field is protected; and direct economic losses such as equipment damage, production and work halt, casualties and the like caused by rockfall disasters are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of slope management, and in particular to a crash-proof wall structure for protecting slopes from falling rocks. Background Art

[0002] In mountainous terrain, some buildings often need to be built close to the foot of high slopes due to geographical limitations. This type of layout can easily expose the buildings to the direct impact threat posed by falling rocks from the slope.

[0003] In order to effectively resist the potential damage to buildings caused by falling rocks, a series of protective measures are currently widely adopted, such as: spraying anchors on slopes to enhance their structural strength; deploying active and passive protection nets to capture or buffer the impact of falling rocks; and planting trees in slope areas to naturally slow down the speed of falling rocks and reduce their kinetic energy. Most of these protective measures focus on the slopes themselves, aiming to reduce the risk of falling rocks at the source.

[0004] However, given the extreme complexity, suddenness and high randomness of slope rockfall events, as well as the fact that the sizes of rocks fall in different sizes, their impact energy can easily reach thousands or even tens of thousands of joules. Rockfalls may pass over the protective layer, directly threatening the safety of buildings near the toe of the slope. Summary of the invention

[0005] In view of this, the present invention provides a crash barrier structure for protecting against falling rocks on slopes, so as to solve the problem that some falling rocks threaten the safety of buildings after passing through the protective layer.

[0006] The present invention provides a crash wall structure for rockfall protection on a slope, comprising a foundation pit and a crash wall body. The foundation pit is excavated at the foot of a high slope, a buffer zone and a building zone are arranged in the foundation pit, the buffer zone is arranged near the foot of the high slope, and the factory building zone is arranged on one side of the buffer zone near the building; the crash wall body is installed in the building zone.

[0007] Beneficial effects: By excavating a foundation pit at the foot of the high slope, installing a crash barrier in the building area of ​​the foundation pit, and adding a buffer zone, when falling rocks fall to the foot of the high slope, they are first buffered by the buffer zone, absorbing and dissipating the kinetic energy of the falling rocks, reducing the impact force of the falling rocks, and reducing the risk of the falling rocks bouncing back and over the crash barrier after landing. At the same time, after being buffered, the impact force of the falling rocks when hitting the crash barrier is smaller, effectively preventing the falling rocks from hitting the factory buildings, providing a solid barrier for the factory buildings, thereby effectively preventing the falling rocks from hitting the factory buildings, protecting the safety of personnel and equipment on site, and reducing direct economic losses such as equipment damage, production suspension, and casualties caused by falling rocks.

[0008] In an optional embodiment, the side of the anti-collision wall body close to the foot of the high slope is the facing slope side; the anti-collision wall structure for slope rockfall protection also includes a facing wall, which is installed on the facing slope side of the anti-collision wall body.

[0009] Beneficial effect: By providing a face wall, the ability of the crash barrier structure to resist impact can be improved. The face wall directly bears the impact of falling rocks, thereby reducing the impact of falling rocks on the crash barrier body and subsequent structures, thereby extending the service life of the crash barrier body and other structures in the factory. At the same time, after the face wall is damaged by falling rocks, only the face wall needs to be repaired and maintained, and there is no need to maintain and repair the crash barrier body and subsequent structures, thereby reducing costs.

[0010] In an optional embodiment, the anti-collision wall structure for slope rockfall protection further includes a buffer interlayer, and the buffer interlayer is located between the slope side of the anti-collision wall body and the face wall.

[0011] Beneficial effect: By filling a buffer interlayer between the slope side and the face wall of the anti-collision wall body, the buffer interlayer serves as the second line of defense. When the face wall is hit by falling rocks, the buffer interlayer can quickly absorb and dissipate the impact energy of the falling rocks. That is, when the falling rocks hit the face wall, their kinetic energy is first absorbed by the face wall, and then further dissipated through the buffer interlayer. Finally, the impact force on the face wall and the impact force when it reaches the anti-collision wall body have been reduced. At the same time, because the buffer interlayer can absorb and dissipate a large amount of impact energy, the degree of damage to the anti-collision wall body is reduced. Even if a rockfall impact occurs, the anti-collision wall body can maintain a high degree of integrity and stability, providing a safer environment for personnel and equipment in the factory area.

[0012] In an optional embodiment, the surface wall is provided with a drainage hole, and a plurality of the drainage holes are provided, and the plurality of the drainage holes are arranged in an array along the height direction and / or the length direction of the surface wall.

[0013] Beneficial effect: By providing drainage holes on the surface wall and arranging multiple drainage holes in an array along the height direction and / or length direction of the surface wall, moisture in the buffer interlayer can be quickly discharged to avoid moisture accumulation in the buffer interlayer, thereby avoiding the occurrence of uneven stress distribution inside the structure or even structural damage due to moisture accumulation in the buffer interlayer, keeping the buffer interlayer in a dry state, helping the buffer interlayer to maintain its protective performance, thereby extending the service life of the buffer interlayer.

[0014] In an optional embodiment, the crash barrier structure for slope rockfall protection further comprises a connecting member, one end of which is connected to the crash barrier body, and the other end of which is connected to the surface wall.

[0015] Beneficial effects: By adding connectors and using them to strengthen the connection between the anti-collision wall body and the face wall, the overall structural strength of the anti-collision wall can be improved, and the impact resistance of the anti-collision wall structure can be enhanced. The setting of the connectors helps to improve the connection reliability between the anti-collision wall body and the face wall, prevent structural damage caused by connection failure due to impact, and prevent the soil pressure and water pressure generated by the buffer interlayer from damaging the opposite wall.

[0016] In an optional embodiment, the crash wall structure for slope rockfall protection also includes a road, and the road is paved in the buffer zone of the foundation pit.

[0017] Beneficial effects: By paving the road in the buffer zone, the road acts as a physical barrier. When the falling rocks roll along the road, their kinetic energy will gradually dissipate in the friction with the road surface, which helps to reduce the impact force of the falling rocks reaching the crash wall structure, thereby reducing the degree of impact. That is, the road is used as an auxiliary protection measure, and together with the crash wall body and the face wall, it forms a multi-level protection system, which improves the overall protection efficiency. At the same time, as part of the crash wall structure, the road is relatively simple to maintain. It only needs to regularly inspect and maintain the road surface to ensure that it maintains a good structure. In addition, through the paving of the road, in an emergency, the road can be used as an escape route to facilitate the evacuation of personnel.

[0018] In an optional embodiment, the anti-collision wall structure for slope rockfall protection further includes a drainage ditch, and the drainage ditch is arranged on a side of the road close to the foot of the high slope.

[0019] Beneficial effects: By setting the drainage ditch on one side of the foot of the high slope, the accumulated water on the road and the foot of the high slope can be collected and discharged in time to prevent water accumulation, which helps to reduce the potential risk of soil loosening and landslides caused by water accumulation, thereby protecting the stability of the crash wall structure and the slope.

[0020] In an optional embodiment, the crash wall structure for protecting against falling rocks on slopes further includes a backfill layer, and the backfill layer is filled in a backfill chamber formed by the crash wall body, the road, the foundation pit and the toe of the high slope.

[0021] Beneficial effect: By filling the backfill layer in the backfill cavity formed by the crash wall body, road, foundation pit and the toe of the high slope, the overall stiffness of the crash wall structure close to the toe of the slope can be improved, which helps to resist the impact of falling rocks and improve its structural stability.

[0022] In an optional embodiment, the crash wall structure for slope rockfall protection further includes an anchor rod, one end of which is installed at the bottom of the crash wall body, and the other end of which is installed in the building area.

[0023] Beneficial effects: By adding anchor rods, the connection strength between the main body of the anti-collision wall and the building area can be significantly improved, such as the pull-out resistance and anti-tilt ability, which helps to ensure that the main body of the anti-collision wall remains stable when hit by falling rocks and avoids overturning or displacement. At the same time, through the setting of anchor rods, the impact on the main body of the anti-collision wall can be transmitted to the ground, which helps to reduce the stress concentration on the local part of the anti-collision wall and improve the overall bearing capacity of the anti-collision wall structure. In addition, through the setting of anchor rods, it can provide better support and stabilization, improve the protection ability of the main body of the anti-collision wall, and help ensure that the main body of the anti-collision wall can remain stable in extreme situations such as large-scale rockfall.

[0024] In an optional embodiment, the anti-collision wall structure for slope rockfall protection also includes a protective net, and the protective net is installed on the top of the anti-collision wall body.

[0025] Beneficial effect: By installing a protective net on the top of the crash wall body, small pieces of falling rocks ejected at the foot of the slope can be directly intercepted to prevent them from crossing the crash wall body and causing damage to the factory buildings. This helps to protect the safety of the factory buildings on the back slope side of the crash wall body and reduce the potential threat of falling rocks to personnel and property. At the same time, the protective net is used in conjunction with the crash wall body to form a multi-level protection system, thereby improving the reliability and effectiveness of slope rockfall protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the specific implementation modes of the present invention, the drawings required for use in the description of the specific implementation modes will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A simplified cross-sectional view of the anti-collision wall structure for slope rockfall protection provided by an embodiment of the present invention after installation;

[0028] Figure 2 A simplified perspective view of a crash wall and a surface wall of a crash wall structure for slope rockfall protection provided by an embodiment of the present invention after being reinforced by connecting members;

[0029] Figure 3 A cross-sectional steel bar diagram during construction of a crash wall structure for slope rockfall protection provided by an embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1. Foundation pit; 2. Building; 3. Anti-collision wall body; 31. Slope side; 4. Facing wall; 5. Buffer interlayer; 6. Drainage hole; 7. Connector; 8. Road; 9. Drainage ditch; 10. Backfill layer; 11. Anchor rod; 12. Initial high slope foot trajectory. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] In mountainous terrain, some factory buildings often need to be built close to the foot of high slopes due to geographical limitations. This type of layout can easily expose the buildings to the direct impact threat of falling rocks from the slope.

[0037] Although detailed demonstrations have been conducted on slope stability assessments and a variety of engineering intervention measures have been taken to ensure the overall stability of the slope, due to the complexity of the geological structure and the uncontrollability of natural factors, rockfall still occurs from time to time, posing a continuous challenge to building safety.

[0038] Specifically, in order to effectively resist the potential damage to buildings caused by falling rocks, a series of protective measures that focus on the slopes themselves and aim to reduce the risk of falling rocks at the source are currently widely adopted. For example, the slopes are reinforced with sprayed anchors to enhance their structural strength, that is, the slopes are reinforced with a combination of sprayed concrete and anchor rods to enhance their structural strength; active and passive protection nets are arranged to capture or buffer the impact of falling rocks, with active protection nets used to capture falling rocks in advance and passive protection nets used to buffer the impact of falling rocks; and afforestation is carried out in the slope area for natural mitigation, that is, the speed of falling rocks is reduced and their kinetic energy is reduced through the friction and resistance of vegetation.

[0039] However, given the extreme complexity, suddenness and high randomness of slope rockfall events, as well as the fact that the sizes of rocks fall in different sizes, their impact energy can easily reach thousands or even tens of thousands of joules. Rockfalls may pass over the protective layer, directly threatening the safety of buildings near the toe of the slope.

[0040] To this end, this application fully considers the impact characteristics of falling rocks, so that the crash wall structure used for slope rockfall protection has sufficient impact resistance to withstand the direct impact of high-energy falling rocks without being damaged, while ensuring a good interception effect to effectively prevent falling rocks from entering the protected area.

[0041] Specifically: by adding an efficient retaining wall in the key area between the slope foot and the building (such as the factory wall), and installing a protective net on the top of the retaining wall.

[0042] Figure 1 A simplified cross-sectional view of the anti-collision wall structure for slope rockfall protection provided by the present application after installation is shown; Figure 2 A perspective schematic diagram showing a crash wall and a surface wall of a crash wall structure for slope rockfall protection provided by the present application after being reinforced by connecting members; Figure 3 The cross-sectional steel bar diagram of the anti-collision wall structure for slope rockfall protection provided by the present application during construction is shown.

[0043] Combine the following Figures 1 to 3 , describing an anti-collision wall structure for slope rockfall protection provided by an embodiment of the present invention.

[0044] like Figure 1 As shown, the anti-collision wall structure includes a foundation pit 1 and an anti-collision wall body 3. The foundation pit 1 is excavated at the foot of the high slope, and a buffer zone and a building zone are arranged in the foundation pit 1. The buffer zone is arranged near the foot of the high slope, and the factory building zone is arranged on the side of the buffer zone near the building 2; the anti-collision wall body 3 is installed in the factory building zone.

[0045] Therefore, by excavating a foundation pit 1 at the foot of the high slope, installing a crash barrier body 3 in the building area of ​​the foundation pit 1, and adding a buffer zone, when the falling rocks fall to the foot of the high slope, they are first buffered by the buffer zone, absorbing and dissipating the kinetic energy of the falling rocks, reducing the impact force of the falling rocks, and reducing the risk of the falling rocks bouncing back and passing over the crash barrier body 3 after landing, which helps to reduce the number of falling rocks that bounce back and pass over the crash barrier body 3 after landing.

[0046] At the same time, after being buffered, the impact force of the falling rocks when they hit the anti-collision wall main body 3 is small, which effectively prevents the falling rocks from hitting the factory buildings 2, and provides a solid barrier for the factory buildings 2, thereby effectively preventing the falling rocks from hitting the factory buildings 2, protecting the safety of personnel and equipment on site, and reducing direct economic losses such as equipment damage, production suspension, and casualties caused by falling rocks.

[0047] It should be noted that the structure of the anti-collision wall body 3 is not specifically limited.

[0048] As one of the implementation modes, the anti-collision wall body 3 is made of C25 reinforced concrete structure.

[0049] Likewise, the structure of the anti-collision wall body 3 is not specifically limited, as long as it can prevent falling rocks.

[0050] As one of the implementation modes, the cross-section of the anti-collision wall body 3 is trapezoidal, the right-angled surface thereof is arranged close to the foot of the high slope, and the inclined surface thereof is arranged close to the factory building 2.

[0051] like Figure 1 and Figure 2 As shown, the side of the anti-collision wall body 3 close to the foot of the high slope is defined as the slope facing side 31; the anti-collision wall structure for slope rockfall protection also includes a facing wall 4, which is installed on the slope facing side 31 of the anti-collision wall body 3.

[0052] Therefore, by providing the face wall 4, the ability of the anti-collision wall structure to resist impact can be improved. The face wall 4 directly bears the impact of falling rocks, thereby reducing the impact of falling rocks on the anti-collision wall body 3 and subsequent structures, thereby extending the service life of the anti-collision wall body 3 and other structures in the factory area.

[0053] At the same time, after the face wall 4 is damaged by the impact of falling rocks, only the face wall 4 needs to be repaired and maintained, and there is no need to maintain and repair the anti-collision wall body 3 and subsequent structures, thereby reducing costs.

[0054] like Figure 1 and Figure 2 As shown, the anti-collision wall structure for slope rockfall protection also includes a buffer interlayer 5, and the buffer interlayer 5 is located between the slope side 31 of the anti-collision wall body 3 and the face wall 4.

[0055] Therefore, by filling the buffer interlayer 5 between the slope side 31 of the anti-collision wall body 3 and the face wall 4, the buffer interlayer 5 is used as the second line of defense. When the face wall 4 is hit by falling rocks, the buffer interlayer 5 can quickly absorb and dissipate the impact energy of the falling rocks. That is, when the falling rocks hit the face wall 4, their kinetic energy is first absorbed by the face wall 4, and then further dissipated through the buffer interlayer 5. Finally, the impact force received by the face wall and the impact force when reaching the anti-collision wall body 3 have been reduced.

[0056] At the same time, since the buffer interlayer 5 can absorb and dissipate a large amount of impact energy, the degree of damage to the anti-collision wall body 3 is greatly reduced. Even if a rockfall impact occurs, the anti-collision wall body 3 can maintain a high degree of integrity and stability, providing a safer environment for personnel and equipment in the factory.

[0057] It can be explained that there is no specific limitation on the material composition of the buffer interlayer 5 , and it only needs to play a buffering role after the surface wall 4 is damaged.

[0058] As one embodiment, the buffer interlayer 5 can be a pure sand layer or a pure soil layer. When the buffer interlayer 5 is a pure soil layer, planting soil can be filled on the top thereof, and hanging vine plants can be planted on the surface of the planting soil.

[0059] Of course, in other optional embodiments, the buffer interlayer 5 is made of high-density sponge or elastic rubber. In this way, the buffer interlayer 5 has good shock absorption and buffering performance, and effectively reduces the impact force caused by falling rocks.

[0060] Similarly, there is no specific limitation on the sizes of the anti-collision wall body 3, the face wall 4, and the buffer interlayer 5. It is only necessary that the height of the anti-collision wall body 3 above the ground is greater than or equal to 3m, the face wall 4 is above the ground, and the buffer interlayer 5 is between the anti-collision wall body 3 and the face wall 4.

[0061] Such an arrangement can optimize the force distribution of the anti-collision wall body 3, help reduce the stress concentration on the local part of the wall, and improve the bearing capacity of the overall structure.

[0062] Preferably, the anti-collision wall body 3 has a top width of 2m, a bottom width of 3.2m, a total height of 6m, a foundation burial depth of 2m, a slope side 31 of a vertical surface, and a slope of 1:0.2 on the back slope side. At this time, the face wall 4 is 30cm thick, the buffer interlayer 5 is 80cm thick and 4m high. The anti-collision wall body 3 is provided with a split every 10m in its extension direction.

[0063] In addition, for the basic steel structure in the anti-collision wall body 3 and the surface wall 4, such as Figure 3As shown, the configuration is: the foundation of the anti-collision wall body 3 is configured with φ16 steel bars, and the surface layer of the remaining parts is configured with φ12 steel bars, and the spacing between adjacent steel bars is 20 cm; the surface wall 4 is configured with connectors 7 with φ16 steel bars, and the connectors 7 are connected to the anti-collision wall body 3, and the spacing between the connectors 7 is 2 m.

[0064] like Figure 1 and Figure 2 As shown, the surface wall 4 is provided with a drainage hole 6 , and a plurality of drainage holes 6 are provided. The plurality of drainage holes 6 are arranged in an array along the height direction and / or the length direction of the surface wall 4 .

[0065] Therefore, by providing drainage holes 6 on the surface wall 4 and arranging multiple drainage holes 6 in an array along the height direction and / or length direction of the surface wall 4, moisture in the buffer interlayer 5 can be quickly discharged to avoid moisture accumulation in the buffer interlayer 5, thereby avoiding the occurrence of uneven stress distribution inside the structure of the buffer interlayer 5 or even structural damage due to moisture accumulation. The buffer interlayer 5 is kept in a dry state, which helps the buffer interlayer 5 maintain its protective performance, thereby extending the service life of the buffer interlayer 5.

[0066] Preferably, one end of the drainage hole 6 is communicated with the chamber where the buffer interlayer 5 is located, and the other end of the drainage hole 6 is communicated with the environment of the surface wall 4 close to the slope.

[0067] like Figure 2 As shown, the anti-collision wall structure for slope rockfall protection also includes a connecting member 7, one end of the connecting member 7 is connected to the anti-collision wall body 3, and the other end of the connecting member 7 is connected to the surface wall 4.

[0068] Therefore, by adding the connector 7 and using the connector 7 to reinforce the connection between the anti-collision wall body 3 and the surface wall 4, the overall structural strength of the anti-collision wall can be improved and the impact resistance of the anti-collision wall structure can be enhanced. The provision of the connector 7 helps to improve the connection reliability between the anti-collision wall body 3 and the surface wall 4, and prevents the phenomenon of structural damage caused by connection failure due to impact.

[0069] At the same time, the provision of the connecting piece 7 helps to improve the connection reliability between the anti-collision wall body 3 and the facing wall 4, and prevents the soil pressure and water pressure generated by the buffer interlayer 5 from damaging the facing wall.

[0070] Preferably, one end of the connecting member 7 is connected to the slope side 31 of the anti-collision wall body 3 , and the other end of the connecting member 7 is connected to the surface wall 4 .

[0071] like Figure 1 As shown, the crash wall structure for protecting against rockfall on the slope also includes a road 8 , which is laid in the buffer zone of the foundation pit 1 .

[0072] Therefore, by paving the road 8 in the buffer zone, the road 8 acts as a physical barrier, so that when the falling rocks roll along the road 8, their kinetic energy will gradually dissipate in the friction with the surface of the road 8, which helps to reduce the impact force of the falling rocks reaching the anti-collision wall structure, thereby reducing the impact degree. That is, the road 8, as an auxiliary protection measure, together with the anti-collision wall body 3 and the surface wall 4, constitutes a multi-level protection system, thereby improving the overall protection efficiency.

[0073] Meanwhile, as a part of the crash barrier structure, the road 8 is relatively easy to maintain, and only regular inspection and maintenance of the road 8 surface is required to ensure that it remains in good structure.

[0074] In addition, through the paving of the road 8, the road 8 can be used as a traffic passage to facilitate the evacuation of personnel in an emergency.

[0075] It should be noted that, since the road 8 is used as a buffer zone, it should be widened as much as possible to achieve a better buffering effect. If the road 8 cannot be widened due to terrain or other reasons, the width of the road 8 should be greater than or equal to 2m.

[0076] like Figure 1 As shown, the crash wall structure for protecting against rockfall on the slope also includes a drainage ditch 9, which is arranged on one side of the road 8 close to the foot of the high slope.

[0077] Therefore, by setting the drainage ditch 9 on one side of the foot of the high slope, the accumulated water at the road 8 and the foot of the high slope can be collected and discharged in time to prevent water accumulation, which helps to reduce the potential risk of soil loosening and landslides caused by water accumulation, thereby protecting the stability of the crash wall structure and the slope.

[0078] It can be explained that, in order to facilitate the guidance of water flow, the drainage ditch 9 is a ditch structure having at least one open top surface and enclosed by side walls and a bottom surface.

[0079] Likewise, a filtering structure, such as a filter net, may be installed at the water inlet of the drainage ditch 9 or inside the drainage ditch 9 to filter impurities in the water flow entering the drainage ditch 9 .

[0080] Likewise, the drainage ditch 9 is cast in concrete.

[0081] Likewise, a track for guiding the movement of falling rocks can be added on the surface of the road 8 to deviate from the critical area of ​​the factory buildings 2 , thereby further reducing the threat of falling rocks to the factory buildings 2 .

[0082] If necessary, materials with certain energy absorption, such as crushed stone, sand or specially designed road surface materials, are laid on the surface of the road 8. These materials can absorb part of the energy when the falling rocks hit, further reducing the impact degree.

[0083] like Figure 1 As shown, the crash wall structure for protecting against falling rocks on the slope also includes a backfill layer 10, which is filled in a backfill chamber formed by the crash wall body 3, the road 8, the foundation pit 1 and the toe of the high slope.

[0084] Therefore, by filling the backfill layer 10 in the backfill chamber formed by the crash wall body 3, the road 8, the foundation pit 1 and the toe of the high slope, the overall stiffness of the crash wall structure close to the toe of the slope can be improved, which helps to resist the impact of the impact and improve the stability of the structure.

[0085] It can be explained that, in the present application, there is no specific limitation on the composition of the backfill layer 10. Its main function is to support the road 8 and maintain the stability of the structure.

[0086] As one of the implementation modes, the backfill layer 10 may be composed of sand and gravel, which is convenient for drainage and helps to improve the phenomenon of water accumulation on the roadside.

[0087] Still Figure 1 As shown, the anti-collision wall structure for slope rockfall protection also includes an anchor rod 11, one end of the anchor rod 11 is installed at the bottom of the anti-collision wall body 3, and the other end of the anchor rod 11 is installed in the building area.

[0088] Therefore, by adding anchor rods 11, the connection strength between the crash barrier body 3 and the building area, such as pull-out resistance, can be significantly improved, which helps to ensure that the crash barrier body 3 remains stable when hit by falling rocks and avoids overturning or displacement.

[0089] At the same time, by providing the anchor rods 11, the impact on the anti-collision wall body 3 can be transferred to the ground, which helps to reduce the stress concentration on the local part of the anti-collision wall and improve the overall bearing capacity of the anti-collision wall structure.

[0090] In addition, the provision of the anchor rods 11 can provide better support and stabilization, thereby improving the protective capability of the crash barrier body 3 and helping to ensure that the crash barrier body 3 remains stable in extreme situations such as large-scale rockfalls.

[0091] It should be noted that there is no specific limit on the number of anchor rods 11. When the number of anchor rods 11 is two or more, the arrangement mode is a single row and a double row alternately arranged mode, and the row spacing is 2m.

[0092] Likewise, the size of the anchor rod 11 is not particularly limited.

[0093] Preferably, a single anchor rod 11 has a total length of 4.5 m, is inserted into the foundation pit 1 for 3.5 m, and is inserted into the interior of the crash wall body for 1 m.

[0094] also, Figure 1The initial high side slope foot trajectory 12 is the trajectory at the high side slope foot before foundation pit excavation.

[0095] It can be explained that when falling rocks roll to the buffer zone, small pieces of gravel are easily generated. Due to their low mass, small pieces of gravel are easily ejected and pass over the crash barrier body 3 when hitting the surface of the road 8. Therefore, the crash barrier structure for slope rockfall protection provided in the present application also includes a protective net, which is installed on the top of the crash barrier body 3.

[0096] Therefore, by installing a protective net on the top of the anti-collision wall body 3, small pieces of falling rocks ejected at the foot of the slope can be directly intercepted to prevent them from passing over the anti-collision wall body 3 and causing damage to the factory buildings 2. This helps to protect the safety of the factory buildings 2 on the back slope side of the anti-collision wall body 3 and reduce the potential threat of falling rocks to personnel and property.

[0097] At the same time, the protection net is used in conjunction with the anti-collision wall body 3 to form a multi-level protection system, thereby improving the reliability and effectiveness of slope rockfall protection.

[0098] In the anti-collision wall structure provided above, the falling rocks are first buffered by the road 8, and then hit the face wall 4, which absorbs part of the kinetic energy and then transfers the kinetic energy to the buffer interlayer 5. When the kinetic energy of the falling rocks is small, the face wall 4 is basically not damaged. When the kinetic energy of the falling rocks is large, the face wall 4 is damaged, and the buffer interlayer 5 will play a good buffering role on the falling rocks, thereby ensuring the safety and stability of the main structure of the retaining wall. At the same time, compared with the solution of directly using the anti-collision wall body 3 to block the falling rocks, the anti-collision wall structure of this structure only needs to repair the original state of the face wall 4 and the buffer interlayer 5 later, so the amount of subsequent repair work will be reduced.

[0099] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A crash wall structure for slope rockfall protection, characterized in that: include: A foundation pit (1), wherein the foundation pit (1) is excavated at the foot of a high slope, and a buffer zone and a building zone are provided in the foundation pit (1), wherein the buffer zone is arranged close to the foot of the high slope, and the building zone is arranged on a side of the buffer zone close to a factory building (2); An anti-collision wall body (3), wherein the anti-collision wall body (3) is installed in the building area.

2. The anti-collision wall structure for slope rockfall protection according to claim 1 is characterized in that: The side of the anti-collision wall body (3) close to the foot of the high slope is the slope side (31); The anti-collision wall structure for protecting against falling rocks on a slope also includes a face wall (4), and the face wall (4) is installed on the face slope side (31) of the anti-collision wall body (3).

3. The anti-collision wall structure for slope rockfall protection according to claim 2 is characterized in that: Also includes: A buffer interlayer (5), the buffer interlayer (5) being located between the slope side (31) of the anti-collision wall body (3) and the face wall (4).

4. The anti-collision wall structure for slope rockfall protection according to claim 2 is characterized in that: The surface wall (4) is provided with a drainage hole (6), and a plurality of the drainage holes (6) are provided. The plurality of drainage holes (6) are arranged in an array along the height direction and / or the length direction of the surface wall (4).

5. The anti-collision wall structure for slope rockfall protection according to claim 2, characterized in that: Also includes: A connecting piece (7), one end of the connecting piece (7) is connected to the anti-collision wall body (3), and the other end of the connecting piece (7) is connected to the surface wall (4).

6. The anti-collision wall structure for slope rockfall protection according to any one of claims 1 to 5, characterized in that: Also includes: A road (8), wherein the road (8) is laid in the buffer zone of the foundation pit (1).

7. The anti-collision wall structure for slope rockfall protection according to claim 6, characterized in that: Also includes: A drainage ditch (9), wherein the drainage ditch (9) is arranged on a side of the road (8) close to the foot of the high side slope.

8. The anti-collision wall structure for slope rockfall protection according to claim 6, characterized in that: Also includes: A backfill layer (10), wherein the backfill layer (10) is filled in a backfill chamber formed by the anti-collision wall body (3), the road (8), the foundation pit (1) and the foot of the high slope.

9. The anti-collision wall structure for slope rockfall protection according to any one of claims 1 to 5, characterized in that: Also includes: An anchor rod (11), one end of the anchor rod (11) is installed at the bottom of the anti-collision wall body (3), and the other end of the anchor rod (11) is installed in the building area.

10. The anti-collision wall structure for slope rockfall protection according to any one of claims 1 to 5, characterized in that: Also includes: A protective net is installed on the top of the anti-collision wall body (3).

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