A channel erosion traceable protection structure

Abstract

The utility model discloses a kind of channel trace source erosion protection structures, it is divided into several groups of protection structures from top to bottom distribution in channel, each group of protection structures further include the pile dam support structure being arranged in channel upstream, the auxiliary dam structure of setting channel downstream of pile dam support structure, trapezoidal stilling basin connecting pile dam support structure and auxiliary dam structure, the pile dam support structure further include anti-slide pile, continuous wall, baffle, the anti-slide pile is more than two and is arranged in channel, the continuous wall is connected adjacent anti-slide pile from the channel's gully bed bottom, the baffle is arranged in anti-slide pile front side and located above continuous wall. The utility model is in combination with the common function of pile dam and auxiliary dam and develops a kind of gully trace source erosion protection blocking structure, solves the prevention and cure difficult problem of geological disaster that gully trace source erosion effect occurs.

Description

Technical Field

[0001] This utility model patent belongs to the technical field of gully source slope support structure, specifically relating to a gully source erosion protection structure. Background Technology

[0002] Currently, the main protective structure for upstream erosion in gullies is the valley dam. While this structure and measure have proven effective in engineering practice, they each have limitations depending on topography and hydrological conditions. Furthermore, due to the steepness of the upstream erosion slopes along the gully banks, the impact range of the valley dam backfill counterpressure is limited. The following problems exist with previous structures and solutions:

[0003] 1. Insufficient adaptability to terrain: Traditional retaining structures (such as valley dams) rely on flat foundations or stable bedrock, but valley terrain is often steep with severely eroded bedrock, making foundation conditions difficult to consider. The structure is prone to overall failure due to foundation deformation or lateral sliding instability;

[0004] 2. Mismatch between impact resistance and scale: Source erosion is often accompanied by small-scale collapses or mixed impacts of water and debris flow at multiple points. Traditional structures have limited energy resistance to a single impact, so multi-stage energy dissipation structures are required.

[0005] 3. The coupling of water and debris flow damages the gully, making it prone to forming debris flows during the rainy season. The water flow erodes and hollows out the structural foundation, while simultaneously carrying away rocks, exacerbating the impact. Traditional structures lack coordinated protection against the hydrodynamic forces. The retaining structure tilts or collapses due to water erosion.

[0006] 4. At the same time, traditional retaining structures do not take into account or do not consider the steep slope of the dam crest adequately. Large-scale slope cutting / releasing can easily lead to the collapse and instability of the dam crest slope.

[0007] Therefore, this utility model proposes a channel erosion protection structure. Utility Model Content

[0008] To address the aforementioned technical problems, this utility model provides a gully erosion protection structure that combines the functions of a pile dam and a secondary dam to develop a gully erosion protection barrier structure, thus solving the problem of preventing and controlling geological disasters caused by gully erosion.

[0009] To achieve the above-mentioned technical effects, this utility model is implemented through the following technical solution: a channel erosion protection structure, which is divided into several groups of protection structures distributed from top to bottom in the channel. Each group of protection structures also includes a pile dam support structure set in the upstream of the channel, a secondary dam structure set in the downstream of the channel, and a trapezoidal stilling basin connecting the pile dam support structure and the secondary dam structure. The pile dam support structure also includes anti-slide piles, a continuous wall, and a baffle. The anti-slide piles are arranged in two or more in the channel. The continuous wall connects the adjacent anti-slide piles from the bottom of the channel bed. The baffle is set in front of the anti-slide piles and above the continuous wall.

[0010] Preferably, the anti-slide piles can be square piles with a cross-section of 1.25×1.75m, a pile spacing of 4~5m, a pile length of 10~15m, and an exposed length of 6~7m.

[0011] Preferably, the continuous wall is 0.8-1.2m thick, 1.8-2.1m wide at the top, and made of C20 concrete.

[0012] Preferably, the continuous wall is 0.8-1.2m thick, 1.8-2.1m wide at the top, and made of C20 concrete.

[0013] Preferably, the stilling basin is provided with retaining walls along the slope of the terrain on both sides, with a top width of 0.5~1.0m, a back slope ratio of 1:0.25, a front slope ratio of 1:0.40, and a bottom slab of 0.5m thick C20 concrete.

[0014] Preferably, the secondary dam structure is configured as a valley-shaped dam, with a dam crest width of 0.8-1.2m, a back slope ratio of 1:0.40, a front slope ratio of 1:0.10, and C20 concrete as the wall material.

[0015] The beneficial effects of this utility model are:

[0016] This utility model primarily aims to prevent geological disasters caused by headward erosion of gullies. It utilizes a pile dam support structure as the main support structure, with a continuous wall at the bottom of the gully bed connecting the anti-slide piles within the pile dam support structure. This prevents lateral sliding of individual anti-slide piles and improves the overall stability of the pile dam. A downstream secondary dam structure prevents downcutting erosion of the gully bed in front of the dam, ensuring the overall stability of the protective structure. This expands the impact range of the counter-pressure backfill while maintaining an aesthetically pleasing and harmonious appearance. The technology is mature, facilitating construction and subsequent maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] Figure 1 This is an engineering cross-sectional view of the protective structure of this utility model;

[0019] Figure 2 This is a front sectional view of the pile dam support structure of this utility model;

[0020] Figure 3 This is a top view of the protective structure of this utility model;

[0021] Figure 4 For the present utility model Figure 3 Cross-sectional view of A in the middle;

[0022] Figure 5 For the present utility model Figure 3 Cross-sectional view of B in the middle;

[0023] Figure 6 For the present utility model Figure 3 Cross-sectional view of C;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Ditch; 2. Pile dam support structure; 3. Secondary dam structure; 4. Stilling basin; 5. Anti-slide piles; 6. Continuous wall; 7. Baffle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Example 1

[0027] like Figures 1 to 6 As shown, the prior art in this embodiment has the following problems: the inventors found that the prior art has difficulty in preventing and controlling geological disasters caused by headward erosion of gullies;

[0028] Therefore, the inventor provides a source erosion protection structure for a channel 1, which is divided into several groups of protection structures distributed from top to bottom in the channel 1. Each group of protection structures also includes a pile dam support structure 2 set upstream of the channel 1, a secondary dam structure 3 set downstream of the pile dam support structure 2 in the channel 1, and a trapezoidal stilling basin 4 connecting the pile dam support structure 2 and the secondary dam structure 3. The pile dam support structure 2 also includes anti-slide piles 5, a continuous wall 6, and a baffle 7. The anti-slide piles 5 are arranged in two or more in the channel 1. The continuous wall 6 connects the adjacent anti-slide piles 5 from the bottom of the channel bed of the channel 1. The baffle 7 is set in front of the anti-slide piles 5 and above the continuous wall 6.

[0029] Its effects are as follows: This utility model is mainly designed to prevent geological disasters caused by headward erosion of gullies. A pile dam support structure 2 serves as the main support structure. A continuous wall 6 is installed at the bottom of the gully bed to connect the anti-slide piles 5 in the pile dam support structure 2, preventing lateral sliding of individual anti-slide piles 5 and improving the overall stability of the pile dam. A secondary dam structure 3 is installed downstream to prevent downcutting erosion of the gully bed in front of the dam, ensuring the overall stability of the protective structure. This expands the influence range of the backfilling and also ensures the aesthetic appearance of the structure. The technology is mature, facilitating construction and subsequent maintenance.

[0030] Furthermore, the anti-slide pile 5 can be a square pile with a cross-section of 1.25×1.75m, a pile spacing of 4~5m, a pile length of 10~15m, and an exposed length of 6~7m.

[0031] Furthermore, the continuous wall is 0.8-1.2m thick, with a top width of 1.8-2.1m, and the wall material is C20 concrete.

[0032] Furthermore, the continuous wall is 6mm thick, 1.0m wide at the top, and C20 concrete is used for the wall body.

[0033] Furthermore, retaining walls are arranged along the slopes on both sides of the stilling basin 4, with a top width of 0.5~1.0m, a back slope ratio of 1:0.25, a front slope ratio of 1:0.40, and a bottom slab of 0.5m thick C20 concrete.

[0034] Furthermore, the secondary dam structure 3 is set as a valley dam, the valley dam has a top width of 0.8-1.2m, a back slope ratio of 1:0.40, a front slope ratio of 1:0.10, and the wall material is C20 concrete.

[0035] Furthermore, the top width of the Gufang Dam is 1.0m. Example 2

[0036] Based on the above embodiments, this embodiment also provides a construction process for the erosion protection structure of trench 1, which specifically includes the following:

[0037] First, excavate the foundation pit, pour anti-slide piles 5, then backfill, and after backfilling to the trench bed, pour continuous wall 6 between the anti-slide piles 5, and at the same time pour the pile-interval baffle 7. In the construction project, drainage holes or drainage tunnels need to be reserved. Then, pour stilling basin 4 behind the pile dam support structure 2, then excavate the foundation pit of the secondary dam structure 3 and pour the secondary dam structure 3, and finally backfill.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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.

Claims

1. A channel erosion protection structure, comprising several groups of protection structures distributed from top to bottom in a channel (1), characterized in that: Each set of protective structures also includes a pile dam support structure (2) set upstream of the channel (1), a secondary dam structure (3) set downstream of the pile dam support structure (2) in the channel (1), and a trapezoidal stilling basin (4) connecting the pile dam support structure (2) and the secondary dam structure (3). The pile dam support structure (2) also includes anti-slide piles (5), a continuous wall (6), and a baffle (7). The anti-slide piles (5) are set in two or more in the channel (1). The continuous wall (6) connects the adjacent anti-slide piles (5) from the bottom of the channel bed of the channel (1). The baffle (7) is set in front of the anti-slide piles (5) and above the continuous wall (6).

2. The trench (1) source erosion protection structure according to claim 1, characterized in that: The anti-slide pile (5) can be a square pile with a cross section of 1.25×1.75m, a pile spacing of 4~5m, a pile length of 10~15m, and an exposed length of 6~7m.

3. The trench (1) source erosion protection structure according to claim 1, characterized in that: The continuous wall (6) is 0.8-1.2m thick and 1.8-2.1m wide at the top. The wall material is C20 concrete.

4. The trench (1) source erosion protection structure according to claim 1, characterized in that: The continuous wall (6) is 0.8-1.2m thick and 1.8-2.1m wide at the top. The wall material is C20 concrete.

5. The trench (1) source erosion protection structure according to claim 1, characterized in that: The stilling basin (4) has retaining walls arranged along the terrain slope on both sides, with a top width of 0.5~1.0m, a back slope ratio of 1:0.25, a front slope ratio of 1:0.40, and a bottom plate of 0.5m thick C20 concrete.

6. The trench (1) source erosion protection structure according to claim 1, characterized in that: The secondary dam structure (3) is set as a valley dam, the top width of which is 0.8-1.2m, the back slope ratio is 1:0.40, the front slope ratio is 1:0.10, and the wall material is C20 concrete.

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