Reservoir side slope rapid supporting structure
By setting up reinforcement components combining steel pipe piles and concrete guard plates on the slope of the reservoir, and installing anti-slip components on the outer wall of the steel pipe piles, the problem of large amount of excavation slag in the prior art is solved, and the stability and environmental protection of the slope are achieved.
Patent Information
- Application Number
- CN202422227771.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The slope of the existing reservoir is cut to a stable slope ratio, resulting in a large amount of excavation slag discarded, which is prone to soil erosion and environmental pollution.
The reservoir slope rapid support structure is adopted, including setting up reinforcement components on the slope with excavation slope ratio of 1:0.75 to 1:1.0, combining steel pipe piles with concrete guard plates, and installing anti-slip components on the outer wall to enhance stability.
It reduces the excavation area, reduces the cost of construction and later greening and maintenance, protects the surrounding environment of the reservoir, avoids slope brushing and collapse, and ensures the stability of the slope.
Smart Images
Figure CN222975784U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water conservancy and hydropower engineering, and specifically belongs to a rapid support structure for reservoir slopes. Background Technique
[0002] With the improvement of people's environmental protection awareness, reliable low-carbon energy has become the trend and direction of energy development. As a result, water conservancy projects are built in some areas rich in water resources to increase the coverage area of hydropower generation and the water conservancy power generation. For reservoirs built in high-altitude areas in some southwestern regions, the slopes of the reservoir area are often covered by thick glacial and fluvial deposits. Affected by altitude and reservoir capacity, the water level is often adjusted by daily regulation power stations, and the water level rises and falls frequently between the normal storage level and the dead level every day. As a result, the slopes of the reservoir area are frequently impacted by the water level, leading to changes in the strength parameters of the strata inside the slopes of the reservoir area, making the stability of the slopes of the reservoir area worse. The mechanical parameters of the thick overburden slopes decrease under the condition of frequent water level rise and fall, causing slope scouring and collapse.
[0003] To ensure the stability of the slopes of the reservoir area, the slope is usually cut to a stable slope ratio. The slopes of the reservoir area built by this method have strong stability, but the required excavation area is large, resulting in serious damage to surface vegetation. At the same time, the amount of excavation and waste slag in this method is large, and a slag yard often needs to be set up separately, which has problems of environmental protection for water, that is, it has a great impact on the environment of the reservoir construction area and is prone to soil erosion and environmental pollution. Content of the Utility Model
[0004] In order to solve the problem that the existing slopes of the reservoir area are cut to a stable slope ratio, resulting in a large amount of excavation and waste slag, and it is easy to cause soil erosion and environmental pollution, the utility model provides a rapid support structure for reservoir slopes.
[0005] To achieve the above object, the utility model provides the following technical solutions:
[0006] The utility model provides a rapid support structure for reservoir slopes, including a reinforcement component arranged in a slope with an excavation slope ratio of 1:0.75 to 1:1.0. A concrete protection board is connected to a position near the top of the reinforcement component, and the concrete protection board is laid on the slope.
[0007] The reinforcement component includes steel pipe piles, the steel pipe piles are installed in the slope, and anti-slip components are arranged on the outer walls of the steel pipe piles.
[0008] Preferably, multiple layers of the anti-slip components are arranged along the axial direction of the outer wall of the steel pipe pile, and the distance between adjacent two layers of the anti-slip components is 1.8 to 2.2 m.
[0009] Preferably, the anti-slip assembly includes a plurality of anti-slip pins and a spreading sleeve. The plurality of anti-slip pins are rotationally installed on the outer wall of the steel pipe pile at equal circumferential intervals. The spreading sleeve is sleeved on the steel pipe pile at a position above the plurality of anti-slip pins and is used to spread the anti-slip pins when the steel pipe pile slides outward.
[0010] Preferably, the anti-slip assembly includes three anti-slip pins. The three anti-slip pins are arranged circumferentially around the outer wall of the steel pipe pile. A first inclined surface facing inward is provided above the anti-slip pins, and a second inclined surface is provided on the outer wall of the spreading sleeve. When the anti-slip pins are not spread, the first inclined surface is in contact with the second inclined surface.
[0011] Preferably, a limiting platform is provided on the inner wall of the spreading sleeve, and a guiding groove is provided along the axial direction on the outer wall of the steel pipe pile. The limiting platform is slidably installed in the guiding groove.
[0012] Preferably, a second reinforcing bar with a diameter of 15 - 25 mm is installed in the steel pipe pile, and the inner wall of the steel pipe pile and the second reinforcing bar are filled with concrete material to fix the second reinforcing bar in the steel pipe pile.
[0013] Preferably, the diameter of the steel pipe pile is 12 cm - 15 cm, and the length is 10.0 m - 15.0 m.
[0014] Preferably, the thickness of the concrete protection plate is 30 cm - 50 cm.
[0015] Preferably, a reinforcing member is provided in the concrete protection plate.
[0016] Preferably, the reinforcing member is a first reinforcing bar with a diameter of 10 - 16 mm.
[0017] Compared with the prior art, the utility model has the following beneficial technical effects:
[0018] The utility model proposes a rapid support structure for the slope of a reservoir, in which a steeper excavation slope ratio can be used to reduce the excavation volume, such as an excavation slope ratio of 1:0.75 to 1:1.0, to meet the stability of the construction period. With the help of the anti-seepage and anti-scouring properties of the concrete guard plate, the slope scouring and collapse caused by the reduction of mechanical parameters of the deep cover layer slope under frequent water level rise and fall are avoided, thereby maintaining the stability during the normal operation period. At the same time, in order to maintain the overall stability of the concrete guard plate, multiple steel pipe piles are staggered and inserted into the covering layer. The top ends of the steel pipe piles are embedded in the concrete guard plate, and the steel pipe piles are embedded in the slope of the covering layer, similar to grabbers or tentacles that penetrate into the covering layer in the slope. While fixing the concrete guard plate, the soil in the area where the slope is located is fixed, so that the slope and the concrete guard plate are combined into an integral structure to prevent the concrete guard plate from slipping; an anti-skid component is provided on the outer wall of the steel pipe pile, so that when the internal water pressure of the steel pipe pile increases relatively after the water level in the reservoir drops and there is a tendency to lift the steel pipe pile, the anti-skid component provides pull-out resistance, reduces the internal water pressure directly acting on the guard plate, and ensures the stability of the slope; at the same time, this structure can effectively reduce the excavation area during the slope construction process, reduce the construction and later greening maintenance costs, thereby reducing the damaged area of vegetation and protecting the environment around the reservoir.
[0019] Furthermore, in this structure, multi-layer anti-skid components are set along the axial direction on the outer wall of the steel pipe pile, and the distance between two adjacent layers is controlled between 1.8 and 2.2m, which enhances the interaction between the steel pipe pile and the slope soil. The multi-layer anti-skid components not only expand the contact area between the pile and the soil, but also ensure that each section of the soil can be effectively anchored through reasonable spacing, thereby improving the stability and reliability of the overall support structure. This refined design helps to better exert the performance of the support structure under complex geological conditions, such as soft soil and collapsible loess, and provides a solid guarantee for the safety and stability of the reservoir slope.
[0020] Furthermore, in the present structure, the anti-slip pins are circumferentially rotatably installed on the outer wall of the steel pipe pile at equal intervals, which not only increases the contact points with the soil, but also effectively disperses the lateral pressure of the soil on the steel pipe pile through its flexible rotation characteristics, reducing the local stress concentration phenomenon; the expansion sleeve enables the steel pipe pile to respond quickly when it is subjected to external force and has a tendency to slide outward, and uses the second inclined surface of its outer wall to push the first inclined surface above the anti-slip pin, so that the anti-slip pin is expanded outward, thereby increasing the embedding area and friction resistance with the soil, and effectively curbing the sliding of the steel pipe pile.
[0021] Furthermore, in this structure, a limiting platform is arranged on the inner wall of the expansion sleeve and is matched with the guiding groove on the outer wall of the steel pipe pile, realizing the stable sliding installation of the expansion sleeve on the steel pipe pile, ensuring that the expansion sleeve can move along a predetermined trajectory when subjected to external forces, effectively avoiding deviation or dislocation, and also enhancing the structural rigidity and reliability of the entire anti-slip component. The close fit between the limiting platform and the guiding groove also restricts the free movement of the expansion sleeve in the non-working state, maintaining the static stability of the support structure.
[0022] Furthermore, in this structure, second reinforcing bars with a diameter of 15 - 25 mm are added inside the steel pipe pile and are firmly fixed to the inner wall of the steel pipe pile through a concrete layer, improving the anti-shearing and anti-deformation abilities of the steel pipe pile. Considering the diameter of the steel pipe pile itself is 12 cm - 15 cm and the length is 10.0 m, 15.0 m, it ensures the stability of the support structure under complex geological conditions, and also takes into account the construction convenience and economy. The combination of the second reinforcing bars and the concrete layer forms a more solid composite structure, effectively resisting external factors such as the lateral pressure of the slope soil and water flow scouring, providing a more reliable technical guarantee for the rapid support of the reservoir slope.
[0023] Furthermore, in this structure, by preferably setting the thickness of the concrete protective plate to be 30 cm to 50 cm and internally placing reinforcement members (such as first reinforcing bars with a diameter of 10 to 16 mm), the strength and durability of the concrete protective plate are further enhanced, ensuring that the protective plate can effectively resist external impacts and erosion by harsh environments. Also, through the uniform distribution of the reinforcement members, the overall stability and crack resistance of the protective plate are improved. The concrete protective plate not only provides a direct protection barrier for the slope but also, through its excellent mechanical properties, works in coordination with reinforcement components such as steel pipe piles to jointly form an efficient and reliable slope support system, providing a solid guarantee for the safety and stability of the reservoir slope. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 is a schematic structural diagram of a rapid support structure for a reservoir slope proposed by the present utility model;
[0025] Figure 2 is a schematic top - view sectional structural diagram of the reinforcement component in a rapid support structure for a reservoir slope proposed by the present utility model;
[0026] Figure 3 is a schematic structural diagram of the reinforcement component in a rapid support structure for a reservoir slope proposed by the present utility model;
[0027] Figure 4 is a schematic connection diagram of the anti - slip component and the steel pipe pile in a rapid support structure for a reservoir slope proposed by the present utility model;
[0028] Figure 5Schematic cross-sectional view of the connection between the anti-sliding component and the steel pipe pile in a rapid support structure for a reservoir slope proposed by the present utility model;
[0029] Figure 6 Schematic cross-sectional view of the anti-steel pipe pile in a rapid support structure for a reservoir slope proposed by the present utility model;
[0030] In the drawings: 1, concrete protection plate; 2, first reinforcing bar; 3, steel pipe pile; 30, connecting groove; 31, connecting column; 32, guiding groove; 4, second reinforcing bar; 5, anti-sliding pin; 6, expanding sleeve; 7, limiting platform. Detailed implementation manners
[0031] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.
[0032] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model 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 thus cannot be understood as a limitation to the present utility model.
[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.
[0034] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0035] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0036] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
[0037] See Figures 1 to 6 , the present utility model provides a rapid support structure for reservoir slopes. During the use of this structure, the overburden excavation slope in the construction area needs to be cleared first, and the excavation is carried out until the excavation slope ratio is 1:0.75 to 1:1.0, obtaining a slope with an excavation slope ratio of 1:0.75 to 1:1.0. This structure includes a reinforcement component arranged in the slope with an excavation slope ratio of 1:0.75 to 1:1.0. The reinforcement components are vertically and staggeredly installed in the overburden layer of the slope, and there are multiple of them. The multiple reinforcement components are arranged in a matrix in the slope, and the distance between two adjacent reinforcement components in the same row is 2.0 m to 3.0 m with a center distance, and the distance between two adjacent rows of reinforcement components is 3.0 to 4.0 m; a concrete protection board 1 is connected to the position near the top of the reinforcement component, and the top of the reinforcement component protrudes 20 cm above the slope concrete 2. The concrete protection board 1 is laid on the slope; the thickness of the concrete protection board 1 is 30 cm to 50 cm, and a reinforcement member is arranged in the concrete protection board 1. The reinforcement member is the first reinforcing bar 2 with a diameter of 10 to 16 mm. The strength of the concrete protection board 1 is increased through the first reinforcing bar 2, and the stability of the support structure is increased.
[0038] See Figures 2 to 6, the reinforcement component includes steel pipe piles 3, which are vertically installed in the slope and the top is 20 cm higher than the outer surface of the slope. The steel pipe piles 3 are connected to the concrete protection board 1 by steel bars and concrete to form an integral structure. Multiple anti-slip components are arranged along the axial direction on the outer wall of the steel pipe piles 3, and the distance between adjacent two anti-slip components is 1.8 - 2.2 m. The anti-slip component includes multiple anti-slip pins 5 and a spreading sleeve 6. The multiple anti-slip pins 5 are arranged circumferentially and equidistantly around the outer wall of the steel pipe piles 3. Connection grooves 30 are arranged at the positions corresponding to the anti-slip pins 5 on the outer wall of the steel pipe piles 3. Connection columns 31 are arranged at the bottom positions of the connection grooves 30 on the steel pipe piles 3. The anti-slip pins 5 are rotatably arranged on the connection columns 31 so that the bottom of the anti-slip pins 5 can rotate on the outer wall of the steel pipe piles 3. Then, after the steel pipe piles 3 are installed on the slope, when the water level rises and falls frequently on the slope and it slides outwards, it is limited by the anti-slip pins 5 to prevent it from sliding outwards, thereby ensuring the stability of the concrete protection board 1 fixed at the slope position and improving the stability of the reservoir area slope. The spreading sleeve 6 is sleeved on the steel pipe piles 3 at the position above the multiple anti-slip pins 5 and is used to spread the anti-slip pins 5 when the steel pipe piles 3 slide outwards. A limiting platform 7 is arranged on the inner wall of the spreading sleeve 6. A guiding groove 32 is arranged along the axial direction on the outer wall of the steel pipe piles 3. The limiting platform 7 is slidably installed in the guiding groove 32 to prevent the steel pipe piles 3 from moving upwards along the axial direction of the steel pipe piles 3 during the installation process, which affects its spreading effect on the anti-slip pins 5. At the same time, when the steel pipe piles 3 move outwards, since the outer wall of the spreading sleeve 6 contacts the soil at the installation position of the steel pipe piles 3 and does not move with the movement of the steel pipe piles 3, it will spread the anti-slip pins 5, making them rotate around the connection columns 31, and then the upper end heads thereof open and are embedded into the surrounding soil to prevent the steel pipe piles 3 from moving outwards, ensuring the overall stability of the concrete protection board 1. In this embodiment, the anti-slip component includes three anti-slip pins 5, and the adjacent two anti-slip pins 5 are spaced 120°. The three anti-slip pins 5 are arranged circumferentially around the outer wall of the steel pipe piles 3.
[0039] An inward first inclined surface is arranged on the upper end face of the anti-slip pin 5, and a second inclined surface is arranged at the position close to the bottom end face of the outer wall of the spreading sleeve 6. When the anti-slip pin 5 is not spread, the first inclined surface is in contact with the second inclined surface. When the steel pipe piles 3 move, the second inclined surface on the spreading sleeve 6 presses the second inclined surface, causing the multiple anti-slip pins 5 to spread, fixing and limiting the steel pipe piles 3 to prevent them from moving.
[0040] Three second reinforcing bars 4 with a diameter of 15 - 25 mm are installed in the steel pipe piles 3. Each second reinforcing bar 4 and the inner wall of the steel pipe piles 3 are filled with a concrete layer to fix the second reinforcing bars 4 in the steel pipe piles 3. The bottom of the second reinforcing bars 4 extends into the soil below the steel pipe piles 3 in the slope, increasing the stability of the fixation of the steel pipe piles 3. The diameter of the steel pipe piles 3 is 12 cm - 15 cm, and the length is 10.0 m - 15.0 m.
[0041] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic features of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claim concerned.
[0042] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of the present utility model, and the protection scope of the present utility model cannot be limited thereby. Any modification made on the basis of the technical solution according to the technical idea proposed by the present utility model falls within the protection scope of the claims of the present utility model.
Claims
1. A rapid support structure for a reservoir slope, characterized in that: It comprises a reinforcement component arranged in a slope with an excavation slope ratio of 1:0.75 to 1:1.0, wherein a concrete guard plate (1) is connected to a position near the top of the reinforcement component, and the concrete guard plate (1) is laid on the slope; The reinforcement component comprises a steel pipe pile (3), the steel pipe pile (3) being installed in the slope, and an anti-slip component being provided on the outer wall of the steel pipe pile (3).
2. A rapid support structure for a reservoir slope according to claim 1, characterized in that: Multiple layers of the anti-slip components are arranged on the outer wall of the steel pipe pile (3) along its axial direction, and the distance between two adjacent layers of the anti-slip components is 1.8-2.2 m.
3. A rapid support structure for a reservoir slope according to claim 2, characterized in that: The anti-slip assembly comprises a plurality of anti-slip pins (5) and a support sleeve (6). The plurality of anti-slip pins (5) are rotatably mounted on the outer wall of the steel pipe pile (3) at equal intervals in the circumferential direction. The support sleeve (6) is sleeved on the steel pipe pile (3) at a position above the plurality of anti-slip pins (5) and is used to support the anti-slip pins (5) when the steel pipe pile (3) slides outward.
4. A rapid support structure for reservoir slope according to claim 3, characterized in that: The anti-slip assembly comprises three anti-slip pins (5), the three anti-slip pins (5) are arranged in a circumferential direction around the outer wall of the steel pipe pile (3), a first inwardly inclined surface is arranged above the anti-slip pins (5), and a second inclined surface is arranged on the outer wall of the expansion sleeve (6), and when the anti-slip pins (5) are not expanded, the first inclined surface is in contact with the second inclined surface.
5. A rapid support structure for reservoir slope according to claim 4, characterized in that: A limiting platform (7) is provided on the inner wall of the expansion sleeve (6), a guide groove (32) is provided on the outer wall of the steel pipe pile (3) along its axial direction, and the limiting platform (7) is slidably installed in the guide groove (32).
6. A rapid support structure for a reservoir slope according to claim 1, characterized in that: A second reinforcing steel bar (4) having a diameter of 15 to 25 mm is installed in the steel pipe pile (3), and the second reinforcing steel bar (4) and the inner wall of the steel pipe pile (3) are filled with concrete material to fix the second reinforcing steel bar (4) in the steel pipe pile (3).
7. A rapid support structure for reservoir slope according to claim 1, characterized in that: The steel pipe pile (3) has a diameter of 12 cm to 15 cm and a length of 10.0 to 15.0 m.
8. A rapid support structure for a reservoir slope according to claim 1, characterized in that: The thickness of the concrete guard plate (1) is 30 cm to 50 cm.
9. A rapid support structure for reservoir slope according to claim 8, characterized in that: A reinforcement member is arranged inside the concrete guard plate (1).
10. A rapid support structure for reservoir slope according to claim 9, characterized in that: The reinforcement member is a first reinforcing steel bar (2) having a diameter of 10 to 16 mm.