Line interval debris flow prevention and control structure
By installing speed bumps and guide strips at the junction of bridges and tunnels, and using a combination of structures such as concrete columns and plant piles, the problem of direct impact of debris flows on bridges was solved, achieving a highly efficient debris flow prevention effect and reducing maintenance costs.
Patent Information
- Application Number
- CN202520251266.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing technologies are insufficient to effectively protect bridges from debris flows and traffic disruptions under complex geological conditions, and the maintenance costs and repair cycles of protective facilities are high.
Speed bumps, first guide strips, and second guide strips are installed at the junction of bridges and tunnels. By using a combination of structures such as curved concrete columns, plant piles, and concrete guide dams, the debris flow is prevented from directly impacting the bridge through deceleration, guidance, and buffering.
It effectively prevents debris flows from impacting bridges, reduces bridge damage and traffic disruptions, lowers protection costs, and improves prevention and control effectiveness.
Smart Images
Figure CN223824064U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to geological engineering technical field especially is related to a line section debris flow prevention structure. BACKGROUND
[0002] With the diversity of Chinese geographical environment, especially in mountainous areas, the geological structure is complex, and the loose material accumulation is rich, which leads to debris flow becoming a common natural disaster. Debris flow not only has strong destructive power, but also poses a serious threat to infrastructure. Especially at the junction of the tunnel and the bridge, due to the particularity of the terrain, debris flow is easy to flow from the mountain to the side of the bridge close to the tunnel, and then accumulate on the bridge, causing bridge damage and traffic interruption.
[0003] In the prior art, there are various methods to deal with debris flow disasters, but mainly concentrated in the application of single measures, such as setting up retaining dams, drainage ditches or reinforcing slopes. Although these methods can reduce the harm of debris flow to a certain extent, under complex geological conditions, it is difficult to achieve ideal protection effect by using a single method. In addition, due to the suddenness and uncertainty of debris flow, the existing protection measures face many challenges in practical application, such as high maintenance cost of protection facilities, long repair cycle and other problems, which limit the effectiveness and economy of the existing technology in debris flow prevention. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a line section debris flow prevention structure to alleviate the technical problems that debris flow will appear from the mountain to the side of the bridge close to the tunnel, causing debris flow to accumulate on the bridge, causing bridge damage and traffic interruption in the prior art.
[0005] The line section debris flow prevention structure provided by the utility model, comprising a mountain bottom and a mountain, a bridge pile is installed on the surface of the mountain bottom, a bridge is fixedly connected on the surface of the bridge pile, a tunnel is arranged on the mountain, one end of the bridge is connected with the outlet of the tunnel, and a debris flow channel exists on the surface of the mountain.
[0006] The surface of the debris flow channel is provided with a speed bump, a first guide belt and a second guide belt, a plurality of groups of arc-shaped concrete columns are arranged on the speed bump, a plurality of groups of plant piles are arranged on the first guide belt, and a plurality of groups of concrete guide dams are arranged on the second guide belt.
[0007] The plant pile comprises a pile body, a plant body is planted in the inside of the pile body, a plug-in part is fixedly connected to the bottom of the pile body, and the plug-in part extends into the soil.
[0008] A rubber ring is sleeved on the surface of the pile body.
[0009] In an optional embodiment,
[0010] The bottom of the pile body is fixedly connected with a concrete base, and the bottom of the concrete base is provided with a plurality of insertion parts.
[0011] In an optional embodiment,
[0012] The insertion part is provided as a pile foot.
[0013] In an optional embodiment,
[0014] The rhizome of the plant body is rooted in the soil of the first guide zone through the concrete base and the pile foot, and the rubber ring resists collision on the surface of the pile body.
[0015] In an optional embodiment,
[0016] The pile body is provided as a prefabricated reinforced concrete member, a plurality of insertion parts are communicated with the interior of the pile body through the concrete base, and the concrete base is in a trumpet shape.
[0017] In an optional embodiment,
[0018] A plurality of groups of the arc-shaped concrete columns are arranged in a plum blossom shape on the deceleration zone.
[0019] In an optional embodiment,
[0020] The concrete guide dams are arranged in a staggered manner on the second guide zone.
[0021] In an optional embodiment,
[0022] The first guide zone, the deceleration zone and the second guide zone are all arranged obliquely relative to the debris flow channel, and the inclination angle of the second guide zone is greater than that of the first guide zone.
[0023] In an optional embodiment,
[0024] The plant piles are arranged in a plum blossom shape on the first guide zone.
[0025] In an optional embodiment,
[0026] The deceleration zone, the first guide zone and the second guide zone are arranged in sequence from high to low on the surface of the debris flow channel, and the second guide zone is located at the bottom of the debris flow channel.
[0027] The line section debris flow prevention structure has the following beneficial effects:
[0028] When the debris flow flows out of the debris flow channel, the debris flow first passes through the deceleration zone, a plurality of groups of arc-shaped concrete columns on the deceleration zone decelerate the debris flow, when the debris flow reaches the first guide zone, the plant piles on the first guide zone guide the debris flow, the insertion part at the bottom of the pile body extends into the soil, greatly improving the structural strength of the plant pile, and the buffering of the rubber ring, so that most of the debris flow is guided by the plant pile to the bottom area of the bridge, a small part of the debris flow will continue to flow to the second guide zone at low speed, and a plurality of groups of concrete guide dams on the second guide zone guide the debris flow to the bottom of the bridge, so as to avoid the debris flow directly hitting the surface of the bridge, thereby avoiding the technical problems that the existing technology exists that the debris flow flows from the mountain to the side close to the tunnel of the bridge, and the debris flow is accumulated on the bridge, causing damage to the bridge and traffic interruption. BRIEF DESCRIPTION OF DRAWINGS
[0029] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0030] Figure 1 The overall structure schematic diagram of the line section debris flow prevention structure provided by the embodiments of the present application is shown in the figure.
[0031] Figure 2 The structural layout schematic diagram of the first guide zone in the line section debris flow prevention structure provided by the embodiments of the present application is shown in the figure.
[0032] Figure 3 The structural schematic diagram of the plant pile in the line section debris flow prevention structure provided by the embodiments of the present application is shown in the figure.
[0033] Figure 4 The structural layout schematic diagram of the deceleration zone in the line section debris flow prevention structure provided by the embodiments of the present application is shown in the figure.
[0034] Figure 5 The structural layout schematic diagram of the second guide zone in the line section debris flow prevention structure provided by the embodiments of the present application is shown in the figure.
[0035] Figure legend: 1- mountain bottom; 11- mountain; 12- bridge pile; 13- bridge; 14- tunnel; 15- debris flow channel; 2- first guide zone; 21- plant pile; 22- pile body; 23- plant body; 24- rubber ring; 25- insertion part; 26- concrete base plate; 3- deceleration zone; 31- arc-shaped concrete column; 4- second guide zone; 41- concrete guide dam. Detailed Implementation
[0036] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the debris flow prevention structure for the line section provided in this embodiment includes a mountain base 1 and a mountain body 11. A bridge pile 12 is installed on the surface of the mountain base 1, and a bridge 13 is fixedly connected to the surface of the bridge pile 12. A tunnel 14 is provided on the mountain body 11, and one end of the bridge 13 is connected to the outlet of the tunnel 14. A debris flow channel 15 exists on the surface of the mountain body 11.
[0041] The surface of the debris flow channel 15 is provided with speed bumps 3, a first guide belt 2 and a second guide belt 4. Multiple sets of arc-shaped concrete columns 31 are provided on the speed bumps 3, multiple sets of plant piles 21 are provided on the first guide belt 2, and multiple sets of concrete guide dams 41 are provided on the second guide belt 4.
[0042] Regarding the structure and shape of plant stump 21, specifically:
[0043] The plant stump 21 includes a stump body 22, and a concrete base 26 is fixedly connected to the bottom of the stump body 22. The bottom of the concrete base 26 is provided with an insertion part 25, which is specifically a stump foot. A rubber ring 24 is fitted on the surface of the stump body 22. The rubber ring 24 can be set as a waste tire, which has a certain elasticity and can play a role in resisting collisions.
[0044] The interior of the pile 22 is planted with plant bodies 23, and the specific species of plant bodies 23 are not limited.
[0045] In an optional embodiment, the plant stakes 21 are arranged in a plum blossom shape on the first guide strip 2, forming a guide wall on the first guide strip 2, thereby guiding the debris flow on the debris flow channel 15 and directing the debris flow to the bottom of the bridge 13.
[0046] In an optional embodiment, the pile body 22 is a precast reinforced concrete component, and the insertion part 25 can be set into four groups. The four groups of insertion parts 25 are connected to the interior of the pile body 22 through the concrete base 26. The pile body 22, together with the plant body 23, greatly improves the structural strength, thereby preventing the plant pile 21 from being washed away by debris flow. The concrete base 26 increases the contact area between the plant pile 21 and the soil, reduces the pressure on the insertion part 25, thereby ensuring the overall stability of the plant pile 21 and ensuring the normal function of the plant pile 21.
[0047] Furthermore, the roots of the plant body 23 are rooted in the soil of the first guide strip 2 through the concrete base 26 and the insertion part 25. The roots of the plant body 23 increase the anchoring force in the soil, thereby improving the stability of the plant pile 21. The rubber ring 24 resists collisions on the surface of the pile body 22 and plays a buffering role on the pile body 22.
[0048] In an optional embodiment, the speed bump 3, the first guide belt 2, and the second guide belt 4 are arranged in descending order on the surface of the debris flow channel 15, thereby effectively guiding the debris flow on the debris flow channel 15. The second guide belt 4 is located at the bottom of the debris flow channel 15, and the second guide belt 4 improves the protection of the bridge 13.
[0049] This prevention and control structure can slow down the debris flow on the debris flow channel 15 by using the speed bump 3, and then guide it by the first guide belt 2 and the second guide belt 4, so as to prevent the debris flow on the debris flow channel 15 from impacting the surface of the bridge 13, and guide the debris flow to the bridge pile 12 at the bottom of the bridge 13, thereby avoiding damage to the bridge 13 and traffic interruption.
[0050] In an optional embodiment, the first guide belt 2, the deceleration belt 3, and the second guide belt 4 are all inclined on the surface of the debris flow channel 15, and the inclination angle of the second guide belt 4 is greater than that of the first guide belt 2. The debris flow velocity at the first guide belt 2 is fast, and the small-angle first guide belt 2 can reduce the impact force of the debris flow. The debris flow velocity at the second guide belt 4 is lower, and the second guide belt 4 can guide the debris flow to the bottom of the bridge 13.
[0051] In alternative implementations, such as Figure 4 As shown, the arc-shaped concrete columns 31 are arranged in a quincunx pattern on the speed bump 3, that is, staggered on the horizontal plane. The arc-shaped concrete columns 31 can reduce the flow velocity of the debris flow.
[0052] The concrete guide dams 41 are arranged in an alternating pattern on the second guide zone 4. The concrete guide dams 41 can guide the debris flow that flows through the first guide zone 2 for the second time, preventing the debris flow from flowing onto the bridge 13.
[0053] Specifically, such as Figure 5 As shown, there are multiple concrete guide dams 41, and these multiple concrete guide dams 41 are arranged in multiple rows, with the gaps in each row staggered, thus forming an alternating arrangement of concrete guide dams 41.
[0054] Working principle: When the debris flow flows out of the debris flow channel 15, the debris flow first passes through the speed bump 3. Multiple sets of arc-shaped concrete columns 31 on the speed bump 3 slow down the debris flow. When the debris flow reaches the first guide belt 2, the plant piles 21 on the first guide belt 2 guide the debris flow. The roots of the bridge piles 12 extend into the soil through the concrete base 26 and the insertion part 25 inside the pile body 22, which greatly improves the structural strength of the plant piles 21. With the buffering of the rubber ring 24, most of the debris flow is guided by the plant piles 21 to the bottom area of the bridge 13, and a small part of the debris flow will continue to flow slowly towards the second guide belt 4.
[0055] Multiple sets of concrete guide dams 41 on the second guide belt 4 guide the debris flow to the bottom of the bridge 13, preventing the debris flow from directly impacting the surface of the bridge 13, thereby effectively preventing damage to the bridge 13 and traffic interruption, effectively improving the effectiveness of debris flow prevention and control, and effectively saving the cost of debris flow prevention and control.
[0056] The debris flow prevention structure provided in this embodiment allows the debris flow to pass through the speed bump 3 first when it flows out of the debris flow channel 15. Multiple sets of arc-shaped concrete columns 31 on the speed bump 3 slow down the debris flow.
[0057] When the debris flow reaches the first guide zone 2, the plant stakes 21 on the first guide zone 2 guide the debris flow. The insertion part 25 at the bottom of the stake 22 extends into the soil, which greatly improves the connection strength and structural strength of the plant stakes 21. With the buffering effect of the rubber ring 24, most of the debris flow is guided by the plant stakes 21 to the bottom area of the bridge 13, and a small part of the debris flow will continue to flow slowly towards the second guide zone 4.
[0058] Multiple sets of concrete guide dams 41 on the second guide belt 4 guide the debris flow to the bottom of the bridge 13, preventing the debris flow from directly hitting the surface of the bridge 13, thereby avoiding damage to the bridge 13 and traffic interruption. This effectively alleviates the technical problem in the prior art where debris flows from the mountain 11 to the side of the bridge 13 near the tunnel 14, causing debris flow to accumulate on the bridge 13, resulting in damage to the bridge 13 and traffic interruption.
[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A line section debris flow prevention structure, comprising a mountain bottom (1) and a mountain body (11), a bridge pile (12) is installed on the surface of the mountain bottom (1), a bridge (13) is fixedly connected to the surface of the bridge pile (12), a tunnel (14) is arranged on the mountain body (11), one end of the bridge (13) is connected with the outlet of the tunnel (14), and a debris flow channel (15) exists on the surface of the mountain body (11), characterized in that, Also include: The surface of the debris flow channel (15) is provided with a deceleration belt (3), a first guide belt (2) and a second guide belt (4), a plurality of groups of arc-shaped concrete columns (31) are arranged on the deceleration belt (3), a plurality of groups of plant piles (21) are arranged on the first guide belt (2), and a plurality of groups of concrete guide dams (41) are arranged on the second guide belt (4); The plant pile (21) comprises a pile body (22), a plant body (23) is planted in the inside of the pile body (22), and an insertion part (25) is fixedly connected to the bottom of the pile body (22), and the insertion part (25) extends into the soil; The surface of the pile body (22) is sleeved with a rubber ring (24).
2. The line section debris flow prevention structure according to claim 1, wherein The bottom of the pile body (22) is fixedly connected with a concrete base (26), and the bottom of the concrete base (26) is provided with a plurality of insertion parts (25).
3. The line section debris flow prevention structure according to claim 2, wherein The insertion part (25) is arranged as a pile foot.
4. The line section debris flow prevention structure according to claim 3, wherein The rhizome of the plant body (23) is rooted in the soil of the first guide belt (2) through the concrete base (26) and the pile foot, and the rubber ring (24) resists collision on the surface of the pile body (22).
5. The line section debris flow prevention structure according to claim 4, wherein The pile body (22) is arranged as a prefabricated reinforced concrete member, a plurality of insertion parts (25) are communicated with the inside of the pile body (22) through the concrete base (26), and the concrete base (26) is in the shape of a horn.
6. The line section debris flow prevention structure according to claim 1, wherein A plurality of groups of arc-shaped concrete columns (31) are arranged in a quincunx shape on the deceleration belt (3).
7. The line section debris flow prevention structure according to claim 6, wherein The concrete guide dams (41) are arranged in a staggered manner on the second guide belt (4).
8. The line section debris flow prevention structure according to claim 1, wherein The first guide belt (2), the deceleration belt (3) and the second guide belt (4) are all arranged obliquely relative to the debris flow channel (15), and the inclination angle of the second guide belt (4) is greater than that of the first guide belt (2).
9. The line section debris flow prevention structure according to claim 1, wherein The plant piles (21) are arranged in a quincunx shape on the first guide belt (2).
10. The line section debris flow prevention structure according to claim 1, wherein The deceleration belt (3), the first guide belt (2) and the second guide belt (4) are arranged in sequence from high to low on the surface of the debris flow channel (15), and the second guide belt (4) is located at the bottom of the debris flow channel (15).