A debris flow protection retaining wall

Abstract

The utility model provides a kind of debris flow protection retaining wall, comprising: base, base is sequentially provided with connecting dam, protection dam and fixed retaining wall, connecting dam and protection dam between there is first flow guide groove, protection dam and fixed retaining wall between there is second flow guide groove, second flow guide groove is provided with buffer assembly, buffer assembly includes movable retaining wall, arc buffer frame and buffer mechanism, movable retaining wall is inclined to mountain side by several buffer mechanisms and is set on fixed retaining wall, the side of second flow guide groove bottom close to fixed retaining wall has installation groove, arc buffer frame is installed in installation groove, there is support platform on installation groove, the lower end of movable retaining wall is abutted on support platform, and the side of arc buffer frame close to fixed retaining wall is set with movable retaining wall. When using the utility model, the impact of debris flow can be effectively resisted, the impact resistance is strong, and it is not easy to damage, and the safety of life and property in the downstream area can be effectively guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of debris flow protection technology, and in particular relates to a debris flow protection retaining wall. Background Technology

[0002] Debris flows are special torrents that occur in mountainous areas or other deep valleys and rugged terrain, triggered by torrential rains, blizzards, or other natural disasters. These flows carry large amounts of mud, sand, and rocks, and are characterized by their suddenness, high velocity, large volume, large mass, and destructive power. Debris flows contain large amounts of water, soil, and sand and gravel of various particle sizes, and during their course, they exhibit a pattern of larger particles in the upper layers and smaller particles in the lower layers. Debris flows often destroy transportation facilities such as roads and railways, and even villages and towns, causing enormous losses. Retaining walls, as a means of protection, are widely used in debris flow-prone areas. However, existing retaining walls have poor impact resistance; they are easily damaged during the initial impact of a debris flow, failing to achieve adequate protection. Therefore, a debris flow retaining wall with strong impact resistance and durability is needed. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a debris flow protection retaining wall to solve the technical problem that the existing retaining walls have poor impact resistance and are easily damaged when debris flows first impact the wall, thus failing to achieve a good protective effect.

[0004] To achieve the above and other related objectives, this utility model provides a debris flow protection retaining wall, comprising: a base, on which a connecting dam, a protective dam, and a fixed retaining wall are sequentially arranged; the connecting dam is attached to the mountainside; a first diversion channel is provided between the connecting dam and the protective dam; a second diversion channel is provided between the protective dam and the fixed retaining wall; a buffer assembly is provided in the second diversion channel; the buffer assembly includes a movable retaining wall, an arc-shaped buffer frame, and a buffer mechanism; the movable retaining wall is inclined to the fixed retaining wall towards one side of the mountainside via several buffer mechanisms; the bottom of the second diversion channel has an installation groove on the side near the fixed retaining wall; the arc-shaped buffer frame is installed in the installation groove, and the arc surface of the arc-shaped buffer frame is located on the side near the mountainside; a support platform is provided on the installation groove; the lower end of the movable retaining wall abuts against the support platform; and the side of the arc-shaped buffer frame near the fixed retaining wall is fitted against the movable retaining wall.

[0005] In this way, the protective dam can resist the impact of the first debris flow, slow down the flow velocity, and effectively limit the flow of debris with smaller particle size at the bottom. The first and second diversion channels block the flow of debris. When impacted by the bottom soil, the arc-shaped buffer frame disperses the impact to the base, fixed retaining wall, and movable retaining wall through the arc surface and reinforcing ribs, forming a buffer. When larger soil or rocks in the upper layer of the debris flow impact the movable retaining wall, the buffer mechanism reduces the impact force on the fixed retaining wall, thereby improving the impact resistance of the fixed retaining wall and its base, and thus blocking the continued flow of debris.

[0006] Optionally, a first fixing column is installed on the side of the connecting dam closest to the mountain. The first fixing column is vertically inserted into the mountain and fixedly connected to the connecting dam via a connecting block. The first fixing column, installed inside the mountain, provides tension to the base material, effectively preventing the base material from sliding with the debris flow under its impact.

[0007] Optionally, the protective dam is arranged in a stepped configuration, and a second fixed column is fixedly connected to the bottom of the protective dam. The second fixed column is linearly arranged along the length of the protective dam and extends deep into the ground. The stepped protective dam has better impact resistance and is less prone to damage. The second fixed column can also effectively prevent the base material from sliding with the debris flow under its impact.

[0008] Optionally, the buffer mechanism includes a fixed column, a movable column, and a buffering spring. The fixed column is hinged to the fixed retaining wall via a hinge seat and is located on the side near the second guide channel. The movable column is hinged to the movable retaining wall via a hinge seat and is located on the side near the fixed retaining wall. The end of the fixed column away from the fixed retaining wall has an axially arranged sliding groove hole. The buffering spring is disposed in the sliding groove hole, and the movable column is inserted into the sliding groove hole. The two ends of the buffering spring abut against the sliding column and the bottom of the sliding groove hole, respectively. By using the buffer mechanism to tilt the movable retaining wall onto the fixed retaining wall, it can effectively block larger particles of soil or rocks from the upper layer, reduce the impact of the debris flow, and confine the debris flow within the guide channel.

[0009] Optionally, the outer surface of the fixed column has a limiting groove arranged in the axial direction, the limiting groove communicating with the sliding hole, and a limiting post is vertically arranged on the outer side of the movable column, the limiting post being slidably disposed within the limiting groove. Through the limiting groove and the limiting post, the movable column slides within the fixed column, allowing the internal spring to provide good buffering when impacted by debris flow, reducing the impact of the debris flow on the fixed retaining wall.

[0010] Optionally, several buffer mechanisms are provided from top to bottom, with the upper part longer than the lower part. This facilitates tilting the movable retaining wall towards one side of the mountain, increasing its impact resistance and reducing debris flow obstruction within the first and second diversion channels.

[0011] Optionally, the inner side of the arc-shaped buffer frame is welded with interlaced reinforcing ribs. This improves the impact resistance of the arc-shaped buffer frame and better protects the lower end of the fixed retaining wall.

[0012] Optionally, a plurality of reinforcing frames are provided on the side of the fixed retaining wall away from the second guide channel, and the reinforcing frames are arranged in a triangular pattern. The triangular arrangement of the reinforcing frames improves the impact resistance of the fixed retaining wall.

[0013] Optionally, a third fixing column is vertically installed below the reinforcement frame, extending deep into the ground. This third fixing column prevents the retaining wall from shifting under the impact of mudslides, thus improving its impact resistance.

[0014] Optionally, the substrate is integrally cast from reinforced concrete.

[0015] The beneficial effects of this utility model are as follows: When using this utility model, it can effectively resist the impact of debris flow, has strong impact resistance, and is not easily damaged, thus effectively ensuring the safety of people and property downstream in the area. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective.

[0018] Figure 3 Displayed as Figure 1 A magnified schematic diagram of the structure at point A in the middle. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0020] Please see Figures 1 to 3It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0021] like Figures 1-3 As shown, a debris flow protection retaining wall is arranged laterally along the debris flow gully or mountain 40, including: a base 1 integrally cast from reinforced concrete, a first fixed column 5, a connecting block 6, a connecting dam 2, a protective dam 3, a fixed retaining wall 4, and a second fixed column 7.

[0022] On the base 1, a connecting dam 2, a protective dam 3, and a fixed retaining wall 4 are arranged sequentially outward along the side of the mountain. The connecting dam 2 is set close to the mountain. The first fixed column 5 extends vertically into the mountain and is then connected to the connecting dam 2 through a connecting block 6 to form a tension system.

[0023] The protective dam 3 adopts a trapezoidal reinforced concrete structure. The cross-section of the protective dam is set in a trapezoidal shape. Several second fixed columns 7 are set at intervals along the axis at the bottom of the dam body. The second fixed columns 7 are reinforced concrete columns that penetrate into the bedrock. The second fixed columns 7 and the protective dam 3 are integrally cast together by stirrup cages to improve the anti-sliding capacity. A first diversion channel 8 is formed between the connecting dam 2 and the protective dam 3. Wear-resistant steel plates can be laid on the surface of the first diversion channel 8 and anchored to the base to prevent debris flow erosion.

[0024] A second flow channel 9 is formed between the protective dam 3 and the fixed retaining wall 4. The second flow channel 9 also has an installation groove 901 for installing the arc-shaped buffer frame 10. The arc-shaped buffer frame 10 is formed by cold bending of steel plate, and the inner side of the frame is welded with interlaced reinforcing ribs and fixed in the installation groove 901 by bolts.

[0025] A movable retaining wall 11 is installed on the side of the fixed retaining wall 4 closest to the mountain via a buffer mechanism. The buffer mechanism is arranged in a pattern where the upper part is longer than the lower part, causing the movable retaining wall 11 to tilt towards one side of the mountain to intercept large boulders from the upper layer of the debris flow. The movable retaining wall 11 is located above the second diversion channel 9. A support platform 401 is also provided below the fixed retaining wall 4, and the lower end of the movable retaining wall 11 abuts against the support platform 401. The arc-shaped buffer frame 10 abuts against the side of the movable retaining wall 11 closest to the mountain. On the side of the fixed retaining wall 4 furthest from the mountain, several triangular reinforcement frames 12 made of steel plates are set along the length of the fixed retaining wall 4. A third fixed column 13 is welded below the reinforcement frame 12 and extends into the ground to form an anti-overturning system, improving the impact resistance of the fixed retaining wall 4.

[0026] Specifically, the buffer mechanism includes a fixed column 14, a movable column 15, and a buffer shock-absorbing spring 16. The fixed column 14 is hinged to the fixed retaining wall 4 through a first hinge seat 17, and the movable column 15 is hinged to the movable retaining wall 11 through a second hinge seat 18. The fixed column 14 has a groove hole 19 recessed along the axis at one end away from the first hinge seat 17. The buffer shock-absorbing spring 16 is installed in the groove hole 19. The movable column 15 is slidably inserted into the groove hole 19 through a limiting structure. The two ends of the shock-absorbing buffer spring 16 abut against the bottom of the movable column 15 and the groove hole 19, respectively.

[0027] Specifically, the limiting structure includes a symmetrical limiting groove 20 on the fixed column 14 and a limiting column 21 fixedly welded to the lower end of the movable column 15 corresponding to the limiting groove 20. The limiting column 21 is slidably fitted in the limiting groove 20 to prevent the movable column 15 from coming out of the sliding hole 19.

[0028] Working principle: The debris flow first impacts the protective dam, and after energy dissipation by the stepped dam body, it enters the first diversion channel; small particles of sediment are deposited in the channel. The remaining debris flow enters the second diversion channel; the kinetic energy of the bottom fluid is dispersed to the base and fixed retaining wall by the arc surface of the arc-shaped buffer frame, while the upper large rocks impact the movable retaining wall. Energy is dissipated by the spring compression of the buffer mechanism, reducing the peak impact force, and ultimately the debris flow is effectively intercepted, protecting downstream safety. The above embodiments are merely illustrative of the principle and effect of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A debris flow protective retaining wall, characterized in that, include: A base is provided on which a connecting dam, a protective dam, and a fixed retaining wall are sequentially arranged. The connecting dam is attached to the mountainside. A first diversion channel is provided between the connecting dam and the protective dam. A second diversion channel is provided between the protective dam and the fixed retaining wall. A buffer assembly is provided in the second diversion channel. The buffer assembly includes a movable retaining wall, an arc-shaped buffer frame, and a buffer mechanism. The movable retaining wall is inclined to the fixed retaining wall towards one side of the mountainside through several buffer mechanisms. The bottom of the second diversion channel has an installation groove on the side near the fixed retaining wall. The arc-shaped buffer frame is installed in the installation groove, and the arc surface of the arc-shaped buffer frame is located on the side near the mountainside. There is a support platform on the installation groove. The lower end of the movable retaining wall abuts against the support platform, and the side of the arc-shaped buffer frame near the fixed retaining wall is fitted with the movable retaining wall.

2. The debris flow protection retaining wall according to claim 1, characterized in that: A first fixed column is installed on the side of the connecting dam closest to the mountain. The first fixed column is vertically inserted into the mountain and fixedly connected to the connecting dam by a connecting block.

3. The debris flow protection retaining wall according to claim 1, characterized in that: The protective dam has a trapezoidal cross section, and a second fixed column is fixedly connected below the protective dam. The second fixed column is linearly arranged along the length of the protective dam and extends deep into the ground.

4. A debris flow protection retaining wall according to claim 1, characterized in that: The buffer mechanism includes a fixed column, a movable column, and a buffer shock-absorbing spring. The fixed column is hinged to the fixed baffle wall via a hinge seat and is located on the side near the second guide channel. The movable column is hinged to the movable baffle wall via a hinge seat and is located on the side near the fixed baffle wall. The end of the fixed column away from the fixed baffle wall has an axially arranged sliding groove hole. The buffer shock-absorbing spring is disposed in the sliding groove hole. The movable column is inserted into the sliding groove hole, and the two ends of the buffer shock-absorbing spring abut against the bottom of the movable column and the sliding groove hole, respectively.

5. A debris flow protection retaining wall according to claim 4, characterized in that: The outer surface of the fixed column has symmetrically arranged limiting grooves along the axial direction. The limiting grooves are connected to the sliding groove holes. A limiting post is provided on the outer side of the movable column, and the limiting post is slidably disposed in the limiting groove.

6. A debris flow protection retaining wall according to claim 4 or 5, characterized in that: The buffer mechanism is arranged in several parts from top to bottom, and the buffer mechanism is arranged with the upper part longer than the lower part.

7. A debris flow protection retaining wall according to claim 1, characterized in that: The inner side of the arc-shaped buffer frame is welded with interlaced reinforcing ribs.

8. A debris flow protection retaining wall according to claim 1, characterized in that: The fixed retaining wall is provided with several reinforcing frames on the side away from the second guide channel, and the reinforcing frames are arranged in a triangular shape.

9. A debris flow protection retaining wall according to claim 8, characterized in that: A third fixing column is vertically installed below the reinforcement frame, and the third fixing column extends into the ground.

10. A debris flow protection retaining wall according to claim 1, characterized in that: The substrate is integrally cast from reinforced concrete.

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