Reinforcing structure of high slope spillway
By dispersing the impact of falling rocks through the box culvert structure and supporting components, and by diverting rainwater through the guide plate, the problem of easy blockage and damage to the spillway has been solved, achieving efficient reinforcement and improved stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN UNIV ENG DESIGN & RES INST CO LTD
- Filing Date
- 2023-06-02
- Publication Date
- 2026-06-02
AI Technical Summary
Existing methods for reinforcing spillway slopes are prone to blockage or damage in areas susceptible to landslides or rockfalls, and commonly used methods are expensive, complex to construct, or have limited effectiveness.
The spillway is reinforced with a box culvert structure. Rockfall impact is dispersed by rock retaining plates and support components, and the direct impact on the box culvert is reduced by buffer components. Combined with the flow deflector to divert rainwater, the erosion of the reinforcement layer is reduced.
It effectively prevents spillway blockage and box culvert damage, reduces construction costs, improves slope stability, and reduces erosion of the reinforcement layer.
Smart Images
Figure CN116556283B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of spillway technology, and in particular to a high slope spillway reinforcement structure. Background Technology
[0002] Spillways are flood control devices in water conservancy structures such as reservoirs, and are usually located on one side of the dam. Spillways require excavation of the mountainside to form a channel. When the water level in the reservoir exceeds a safe limit, water flows downstream through the spillway to prevent damage to the dam. High slopes along spillways are a common problem in engineering design and construction.
[0003] Currently, commonly used methods for reinforcing spillway slopes include anti-slide piles and anchor cables, slope cutting and load reduction, and shotcrete and anchor support. Anti-slide piles require high precision in geological exploration, certain requirements on bedrock bearing capacity, and demanding construction techniques and investment. Slope cutting has lower requirements and investment, but requires a larger amount of additional land. Shotcrete and anchor support is mainly used for rock slopes and is less effective for high soil slopes.
[0004] In areas prone to landslides or rockfalls, the falling soil and rocks can cause blockages or even damage to that section of the spillway. Summary of the Invention
[0005] To reduce the risk of spillway blockage or damage, this application provides a high-slope spillway reinforcement structure.
[0006] This application provides a high slope spillway reinforcement structure, which adopts the following technical solution:
[0007] A high slope spillway reinforcement structure includes a slope body and a spillway channel opened on the slope body. A box culvert is installed in the spillway channel. A reinforcement layer for reinforcing the slope body is installed in the spillway channel between the slope body and the box culvert. A retaining plate is installed on the slope body, and the retaining plate is located above the box culvert. A support component for supporting the retaining plate is installed on the slope body.
[0008] By adopting the above technical solution, the spillway is set up as a box culvert to prevent the spillway from being blocked by landslide soil. The box culvert is connected to the slope body by a reinforcement layer, which plays a role in reinforcement. If a rockfall occurs, the rolling soil and rocks fall onto the retaining plate and then roll down. The force generated by the rockfall acts directly on the retaining plate and then on the slope body through the support components. The rockfall does not directly contact the box culvert, effectively preventing damage to the box culvert.
[0009] Furthermore, the support assembly includes a first bracket and a second bracket. The first bracket is fixedly installed on the slope body, and the second bracket is fixedly installed inside the reinforcement layer. The end of the retaining plate near the slope body is connected to the first bracket, and a buffer assembly is provided between the second bracket and the retaining plate.
[0010] Furthermore, the buffer assembly includes a fixed rod, a movable rod, and a spring. One end of the fixed rod is hinged to the second bracket. A groove is formed in the movable rod along its length. The movable rod is slidably sleeved on the fixed rod. The spring is disposed in the groove. One end of the spring abuts against the bottom wall of the groove, and the other end abuts against the fixed rod. The end of the movable rod away from the fixed rod is hinged to the retaining plate. The first bracket is hinged to the retaining plate.
[0011] Furthermore, a pull rope is fixedly connected between the movable rod and the fixed rod, and the spring is in a compressed state when the pull rope is taut.
[0012] Furthermore, an adjusting ring is threaded onto the movable rod, one end of the pull rope is fixedly connected to the adjusting ring, and the other end is fixedly connected to the fixed rod.
[0013] Furthermore, the first bracket is fixedly connected to a first anchor inserted into the slope body, and a second anchor is provided in the slope body, the second anchor being fixedly connected to the second bracket.
[0014] Furthermore, a gap is provided between the end of the retaining plate near the slope body and the slope body, and a guide plate is provided on the slope body to cover the gap between the retaining plate and the slope body, and the guide plate is located above the retaining plate.
[0015] Furthermore, multiple retaining plates are arranged along the length of the box culvert, and adjacent retaining plates are fixedly connected by fixing components.
[0016] Furthermore, the fixing component includes a fixing tube and a connecting block. The fixing tube is fixedly installed on the top wall of the retaining plate, and two adjacent retaining plates are provided with fixing tubes. The connecting block is slidably inserted into the fixing tube, and both ends of the connecting block are respectively connected to the two fixing tubes. A fixing element for limiting the position of the connecting block is provided between the fixing tube and the connecting block.
[0017] Furthermore, a backfill layer is provided inside the spillway channel at the bottom of the box culvert and on the outside of the box culvert.
[0018] In summary, this application includes at least one of the following beneficial technical effects:
[0019] 1. The spillway is constructed as a box culvert to prevent landslides from clogging it. The box culvert is then connected to the slope body through a reinforcement layer, which serves to strengthen the slope. In the event of a rockfall, the falling rocks will land on the retaining plate and then roll downwards. The force of the falling rocks will act directly on the retaining plate and then on the slope body through the support components. The falling rocks will not directly contact the box culvert, effectively preventing damage to the box culvert.
[0020] 2. The guide plate diverts rainwater from the upper slope body to the retaining plate, reducing rainwater infiltration into the reinforcement layer between the box culvert and the half-slope body, reducing erosion of the reinforcement layer, and preventing the box culvert from sliding relative to the slope body.
[0021] 3. Multiple boulder blocks are connected into one unit by fixing components, so that multiple boulder blocks share the force. When falling rocks fall on a single boulder block, the multiple boulder blocks can disperse the force and prevent the boulder block from being damaged. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;
[0023] Figure 2 This is a schematic diagram illustrating the structure of the support component and the buffer component, which are the main components of this application.
[0024] Figure 3 This is a schematic diagram illustrating the structure of the buffer component, which is the main feature of this application.
[0025] Figure 4 This is a schematic diagram illustrating the structure of the fixing component, which is the main feature of this application.
[0026] Explanation of reference numerals in the attached drawings: 1. Slope body; 11. Reinforcement layer; 12. Backfill layer; 13. Diversion plate; 2. Box culvert; 3. Retaining plate; 31. Reinforcing rod; 4. Support assembly; 41. First support; 42. Second support; 421. First insert rod; 422. Second insert rod; 5. Buffer assembly; 51. Fixed rod; 52. Movable rod; 521. Adjusting ring; 522. Pull rope; 53. Spring; 6. Fixing assembly; 61. Fixing pipe; 62. Connecting block; 63. Fixing bolt. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0028] This application discloses a high slope spillway reinforcement structure.
[0029] Reference Figure 1 A high slope spillway reinforcement structure includes a slope body 1 and a spillway channel excavated on the slope body 1. The spillway channel is excavated on a relatively solid foundation of the slope body 1. A box culvert 2 is installed in the spillway channel, and the box culvert 2 is made of reinforced concrete.
[0030] Reference Figure 1A reinforcement layer 11 is installed within the spillway channel between the slope body 1 and the box culvert 2 to reinforce the slope body 1. The reinforcement layer 11 is formed by backfilling with the excavated waste from the spillway channel. A backfill layer 12 is installed at the bottom and outside of the box culvert 2 within the spillway channel. The backfill layer 12 at the bottom of the box culvert 2 is made of poured concrete to improve the resistance to settlement and ensure the stability of the box culvert 2.
[0031] Reference Figure 1 and Figure 2 A retaining wall 3 is installed on the slope body 1, located above the box culvert 2. The retaining wall 3 is inclined downwards and extends along the length of the box culvert 2. A support assembly 4 for supporting the retaining wall 3 is installed on the slope body 1. The support assembly 4 includes a first bracket 41 and a second bracket 42. The first bracket 41 is fixedly installed on the slope body 1, and the second bracket 42 is fixedly installed within the reinforcement layer 11. The second bracket 42 includes a first insert rod 421 perpendicular to the slope body 1 and a vertically installed second insert rod 422, which improves the structural stability of the second bracket 42.
[0032] Reference Figure 2 The first support 41 is fixedly connected to a first anchor inserted into the slope body 1. A second anchor is installed inside the slope body 1 and is fixedly connected to the second support 42. Both the first and second anchors are anchor rods inserted into the slope body 1. The anchor rods are filled with mortar, which connects and fixes the anchor rods to the soil as a whole, thereby improving the structural strength.
[0033] Reference Figure 1 and Figure 2 The end of the retaining plate 3 near the slope body 1 is hinged to the first support 41. A gap is provided between the end of the retaining plate 3 near the slope body 1 and the slope body 1 to facilitate the smooth deflection of the retaining plate 3 when it is impacted by falling rocks. Since the falling rocks generally fall in the middle of the retaining plate 3, the gap between the retaining plate 3 and the slope body 1 can reduce the width of the retaining plate 3 and save materials. In addition, the surface of the slope body 1 is uneven, and the gap can also prevent protruding soil and rocks from interfering with the rotation of the retaining plate 3.
[0034] Reference Figure 2 and Figure 3A buffer assembly 5 is provided between the second support 42 and the retaining plate 3. The buffer assembly 5 includes a fixed rod 51, a movable rod 52, and a spring 53. One end of the fixed rod 51 is hinged to the second support 42. A groove is formed in the movable rod 52 along its length, and the movable rod 52 is slidably sleeved on the fixed rod 51. The spring 53 is located in the groove, with one end abutting against the bottom wall of the groove and the other end abutting against the fixed rod 51. The end of the movable rod 52 away from the fixed rod 51 is hinged to the retaining plate 3. To improve the structural strength of the retaining plate 3, a reinforcing rod 31 is fixedly provided on the bottom wall of the retaining plate 3 along its length. The movable rod 52 is hinged to the bottom wall of the reinforcing rod 31. There is a gap between the end of the retaining plate 3 away from the slope body 1 and the top wall of the box culvert 2 to allow the retaining plate 3 to move downward.
[0035] When a rock falls onto the retaining plate 3, the impact force drives the movable rod 52 to move downwards, compressing the spring 53. During this process, the retaining plate 3 deflects downwards, achieving a buffering effect. The retaining plate 3 and the buffer assembly 5 effectively prevent the rock from directly impacting the box culvert 2, preventing damage to the box culvert 2. This is especially effective for slope sections prone to landslides and rockfalls, preventing damage to the box culvert 2.
[0036] Reference Figure 3 A pull rope 522 is fixedly connected between the movable rod 52 and the fixed rod 51. At least two pull ropes 522 are provided. Specifically, an adjusting ring 521 is threaded onto the movable rod 52. One end of the pull rope 522 is fixedly connected to the adjusting ring 521, and the other end is fixedly connected to the fixed rod 51. When the pull rope 522 is taut, the spring 53 is in a compressed state, so that in the initial state, the spring 53 has a certain preload, reducing the descent stroke of the stop plate 3 after the falling rock impacts it.
[0037] Reference Figure 1 and Figure 2 A guide plate 13 is installed on the slope body 1 to cover the gap between the retaining stone slab 3 and the slope body 1. The guide plate 13 is located above the retaining stone slab 3 and is inclined downwards. The end of the guide plate 13 away from the slope body 1 extends into the retaining stone slab 3 to facilitate the diversion of rainwater and flash floods onto the retaining stone slab 3. The guide plate 13 diverts rainwater from the upper slope body 1 to the retaining stone slab 3, reducing rainwater infiltration into the reinforcement layer 11 between the box culvert 2 and the slope body, reducing erosion of the reinforcement layer 11, and preventing the box culvert 2 from sliding relative to the slope body 1.
[0038] Reference Figure 2 and Figure 4Multiple retaining walls 3 are installed along the length of the box culvert 2. If a retaining wall 3 is damaged, only the damaged retaining wall 3 needs to be replaced, saving maintenance costs. Adjacent retaining walls 3 are fixedly connected by fixing components 6. Each retaining wall 3 is provided with two sets of fixing components 6, which include fixing pipes 61 and connecting blocks 62. The fixing pipes 61 are fixedly installed on the top wall of the retaining wall 3, and each pair of adjacent retaining walls 3 is provided with a fixing pipe 61. The connecting block 62 slides through the fixing pipe 61, and its two ends are respectively connected to the two fixing pipes 61. A fixing element, namely a fixing bolt 63, is provided between the fixing pipe 61 and the connecting block 62 to limit the position of the connecting block 62. The fixing bolt 63 passes through the fixing pipe 61 for threaded connection with the connecting block 62.
[0039] Multiple stone retaining plates 3 are connected into one unit by fixing component 6, so that multiple stone retaining plates 3 share the force. When falling stones fall on a single stone retaining plate 3, multiple stone retaining plates 3 can disperse the force and prevent damage to the stone retaining plate 3.
[0040] The implementation principle of this application embodiment is as follows: the spillway is set as a box culvert 2 to prevent the spillway from being blocked by landslide soil, and the box culvert 2 is connected to the slope body 1 by the reinforcement layer 11 to play a reinforcing role. If a rockfall occurs, the rolling soil and rocks fall onto the retaining plate 3 and then roll downwards. The force generated by the rockfall acts directly on the retaining plate 3, and the impact force drives the movable rod 52 to move downwards, compressing the spring 53. During this process, the retaining plate 3 deflects downwards to achieve a buffering effect. The retaining plate 3 and the buffer component 5 effectively prevent the rockfall from acting directly on the box culvert 2 and prevent damage to the box culvert 2. Especially for slope sections prone to landslides and rockfalls, it effectively prevents damage to the box culvert 2.
[0041] 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 high slope spillway reinforcement structure, characterized in that: The system includes a slope body (1) and a spillway channel opened on the slope body (1). A box culvert (2) is installed in the spillway channel. A reinforcement layer (11) for reinforcing the slope body (1) is installed between the slope body (1) and the box culvert (2) in the spillway channel. A retaining plate (3) is installed on the slope body (1). The retaining plate (3) is located above the box culvert (2). A support component (4) for supporting the retaining plate (3) is installed on the slope body (1). The support component (4) includes a first support (41) and a second support (42). The first support (41) is fixedly installed on the slope body (1), and the second support (42) is fixedly installed in the reinforcement layer (11). The end of the retaining plate (3) near the slope body (1) is connected to the first support (41), and a buffer component (5) is provided between the second support (42) and the retaining plate (3). The buffer assembly (5) includes a fixed rod (51), a movable rod (52), and a spring (53). One end of the fixed rod (51) is hinged to the second bracket (42). A groove is provided in the movable rod (52) along the length of the movable rod (52). The movable rod (52) is slidably sleeved on the fixed rod (51). The spring (53) is set in the groove. One end of the spring (53) abuts against the bottom wall of the groove, and the other end abuts against the fixed rod (51). The end of the movable rod (52) away from the fixed rod (51) is hinged to the retaining plate (3). The first bracket (41) is hinged to the retaining plate (3).
2. The high slope spillway reinforcement structure according to claim 1, characterized in that: A pull rope (522) is fixedly connected between the movable rod (52) and the fixed rod (51). When the pull rope (522) is taut, the spring (53) is in a compressed state.
3. The high slope spillway reinforcement structure according to claim 2, characterized in that: An adjusting ring (521) is threaded onto the movable rod (52). One end of the pull rope (522) is fixedly connected to the adjusting ring (521), and the other end is fixedly connected to the fixed rod (51).
4. The high slope spillway reinforcement structure according to claim 1, characterized in that: The first bracket (41) is fixedly connected to a first anchor inserted into the slope body (1), and a second anchor is provided inside the slope body (1), and the second anchor is fixedly connected to the second bracket (42).
5. The high slope spillway reinforcement structure according to claim 1, characterized in that: The retaining plate (3) has a gap between the end near the slope body (1) and the slope body (1). The slope body (1) is provided with a guide plate (13) for blocking the gap between the retaining plate (3) and the slope body (1). The guide plate (13) is located above the retaining plate (3).
6. The high slope spillway reinforcement structure according to claim 1, characterized in that: Multiple retaining plates (3) are provided along the length of the box culvert (2), and adjacent retaining plates (3) are fixedly connected by fixing components (6).
7. The high slope spillway reinforcement structure according to claim 6, characterized in that: The fixing component (6) includes a fixing tube (61) and a connecting block (62). The fixing tube (61) is fixedly installed on the top wall of the retaining plate (3), and two adjacent retaining plates (3) are provided with fixing tubes (61). The connecting block (62) slides through the fixing tube (61), and both ends of the connecting block (62) are respectively connected to the two fixing tubes (61). A fixing member for limiting the position of the connecting block (62) is provided between the fixing tube (61) and the connecting block (62).
8. The high slope spillway reinforcement structure according to claim 1, characterized in that: A backfill layer (12) is provided inside the spillway channel at the bottom of the box culvert (2) and on the outside of the box culvert (2).