Slope protection structure

Abstract

The utility model discloses a side slope protection structure which comprises a protection slope body, a main framework and a branch framework are arranged on the protection slope body, and the main framework is perpendicular to the horizontal line of the protection slope body. An angle of 45 degrees is formed between the main framework and the branch framework; a plurality of shrub planting areas are backfilled in the branch framework, and shrubs are planted in the shrub planting areas; a drainage ditch is formed in the slope toe of the protection slope body, a drainage groove is formed in the main framework, and the drainage groove communicates with the drainage ditch. The main framework is made into a groove shape, and the branch framework is made into an L shape so as to divert and discharge surface water; through the arranged drainage grooves and drainage ditches, a complete drainage system is further formed, meanwhile, it is avoided that concentrated water flow washes a roadbed slope, and potential engineering safety hazards are avoided; in addition, the drainage ditches are subjected to smooth surface treatment, so that overall attractiveness and smooth water interception and drainage are guaranteed; and the planting area is backfilled in the branch framework, so that vegetation such as shrubs convenient for soil conservation can be conveniently planted, and the stability of the side slope is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of protection slope design, and in particular to a slope protection structure. Background Art

[0002] The destruction of the original landform vegetation is inevitable. In order to prevent soil erosion, a common measure is to build water conservancy slope protection along the river. Water conservancy slope protection can play a role in maintaining water and soil and preventing floods. In order to be beautiful and green the environment, turf is often planted on the surface of water conservancy slope protection. The protection slope mainly relies on the adhesion between plant roots and soil and the mutual entanglement between roots to achieve the purpose of reinforcing the slope.

[0003] Water conservancy ecological protection slopes can conserve water resources, reduce soil erosion, and effectively purify the air, protect the ecology, and beautify the environment, with ecological benefits; the existing drainage grooves and drainage ditches of the protection slopes are not set up reasonably, and it is easy for water to concentrate and erode the roadbed slopes when it rains, causing engineering hazards. At the same time, if concrete is poured directly on the main body of the protection slope, it will cause inconvenience for plant growth and inconvenience for soil conservation, further leading to the instability of the slope. How to effectively solve the above problems is an important direction that needs to be solved in the current protection slope construction. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art, and a slope protection structure is proposed, including a protection slope body, a water cutoff frame is cast on the protection slope, the water cutoff frame includes a main frame and a branch frame, the main frame and the horizontal line of the protection slope body are perpendicular; the main frame and the branch frame are 45 degrees, and are arranged in a herringbone shape; a plurality of shrub planting areas are backfilled in the branch frame, the distance between the two shrub planting areas is 1m, and one shrub is planted in each shrub planting area;

[0005] A drainage ditch is provided at the foot of the main slope of the protection slope, and a drainage groove is provided on the main frame, and the drainage groove is connected to the drainage ditch;

[0006] The protection starting point and end point of the protection slope body are provided with mortar-laid rubble stone masonry edges within a width of 0.5m;

[0007] The upper surface of the protective slope body is provided with steps made of mortar-laid slab stones.

[0008] Preferably, the main frame is made into a groove shape, and the branch frame is L-shaped.

[0009] Preferably, the distance between the main frames is 4 to 5 meters, the main frame is 0.6m thick and 0.6m wide, and 0.1m thick C25 concrete water retaining edges are provided on both sides of the top surface.

[0010] Preferably, the spacing between the support frames is 3m; the support frames are 0.5m thick and 0.5m wide, and a 0.1m thick C25 concrete water retaining edge is provided on the lower side of the top surface.

[0011] Preferably, the edging thickness is 0.6 m.

[0012] Preferably, the interval between the steps is 50-100 m, and the width of the steps is 1 m.

[0013] Preferably, an expansion joint is provided at the arch top of the supporting frame, the expansion joint has a width of 2 cm, and the entire section of the expansion joint is filled with asphalt hemp tendons.

[0014] Preferably, the drainage ditch foundation is 0.3m thick mortar-laid rubble stone masonry, and the drainage ditch is also provided with a water retaining edge.

[0015] Preferably, the soil layer thickness in the shrub planting area is ≥0.1m.

[0016] Compared with the existing technology, the beneficial effects of the utility model are: by making the main frame into a trough shape and the support frame into an L shape, surface water is diverted and discharged; by setting a mortar-laid stone masonry step along the slope to facilitate maintenance operations, the step width is 1.0m; by using asphalt reinforcement to fill the entire section of the expansion joint, the expansion joint position and the drainage are staggered to ensure overall harmony and beauty with the slope; by setting up drainage grooves and drainage ditches, a complete drainage system is further formed, while avoiding concentrated water flow to scour the roadbed slope and avoid engineering safety hazards; in addition, the drainage ditch is polished to ensure overall beauty and smooth interception and drainage; by backfilling the planting area in the support frame, it is convenient to plant shrubs and other vegetation that are convenient for conserving soil, thereby further ensuring the stability of the slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a slope protection structure proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of a slope protection structure proposed by the utility model (side view);

[0019] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure at the A node;

[0020] Figure 4 It is the cross-section diagram of the step structure;

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of section II-II. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Referring to the drawings, the present embodiment provides a slope protection structure, including a protection slope body, on which a water-cutting frame is cast, the water-cutting frame including a main frame 1 and a branch frame 2, the main frame 1 and the horizontal line of the protection slope body are perpendicular; the main frame 1 and the branch frame 2 are 45 degrees, and the branch frame is arranged in a herringbone shape; a plurality of shrub planting areas 3 are backfilled in the branch frame 2, the spacing between the two shrub planting areas 3 is 1m, and one shrub is planted in each shrub planting area 3;

[0024] A drainage ditch 4 is provided at the foot of the main body of the protection slope, and a drainage ditch 5 is provided on the main frame, and the drainage ditch 5 is connected to the drainage ditch 4;

[0025] The protection starting point and the end point of the protection slope body are each provided with a 0.5m width border 7 made of mortar-laid rubble stone;

[0026] The upper surface of the protective slope body is provided with steps 8 made of mortar-laid slabs.

[0027] Furthermore, the main frame 1 is made into a groove shape, and the branch frame 2 is L-shaped.

[0028] Furthermore, the distance between the main frames 1 is 4 to 5 meters, the main frame 1 is 0.6 meters thick and 0.6 meters wide, and 0.1-meter-thick C25 concrete water retaining edges 9 are arranged on both sides of the top surface.

[0029] Furthermore, the spacing between the support frames 2 is 3m; the support frames are 0.5m thick and 0.5m wide, and a 0.1m thick C25 concrete water retaining edge is provided on the lower side of the top surface.

[0030] Furthermore, the thickness of the edging 7 is 0.6 m.

[0031] Furthermore, the interval between the steps 8 is 50-100 m, and the width of the steps 8 is 1 m.

[0032] Furthermore, an expansion joint is provided at the arch top of the supporting frame 2, the expansion joint has a width of 2 cm, and the entire section of the expansion joint is filled with asphalt hemp tendons.

[0033] Furthermore, the foundation of the drainage ditch 5 is built with 0.3m thick mortar-laid flagstones, and the drainage ditch 5 is also provided with a water retaining edge.

[0034] Furthermore, the soil layer thickness of the shrub planting area 3 is ≥0.1m.

[0035] When the above embodiment is implemented, the applicable conditions include:

[0036] 1. Applicable to slope height H>3m and slope gradient not steeper than 1:1.5 embankment slope.

[0037] 2. Embankment slopes where fill materials are suitable for easy growth of vegetation.

[0038] 3. For embankment slopes that are not conducive to plant growth and are constructed with group A or B fillers, grass seeds should be sown within the herringbone water-cutting frame, and shrubs should be planted in holes for slope protection. The frame should be backfilled with 10 cm thick planting soil, and then shrub seedlings should be planted in holes and grass seeds should be sown.

[0039] Its main engineering measures

[0040] 1. For sections with V≤160km / h, the water-cutting frame is built with M7.5 mortar-laid rubble stone, and the water retaining edge is built with C25 concrete; for sections with V=200km / h, concrete is cast on site, and the water retaining edge is cast in place with concrete of the same grade as the frame.

[0041] 2. The main frame of the water-cutting frame is made into a trough shape, and the branch frame is made into an L shape to divert and discharge surface water.

[0042] 3. The frame is composed of a main frame and a supporting frame. The main frame is perpendicular to the horizontal line of the slope, with a net spacing of 4~5m, a thickness of 0.6m, and a width of 0.6m. A 0.1m thick C25 concrete water retaining edge is set on both sides of the top surface, see "Ⅱ-Ⅱ Sectional Drawing" for details: the supporting frame and the main frame are 45", set in a herringbone shape, with a net spacing of 3m, a thickness of 0.5, and a width of 0.5m. A 0.1m thick C2: concrete water retaining edge is set on the lower side of the top surface (the lower part of the water retaining edge is embedded in the mortar frame 0.1 in the V≤160km / h section), see "II Sectional Drawing" for details.

[0043] 4. Mortar-laid rubble stone masonry (concrete pouring) is used for edge reinforcement within a width of 0.5m at the starting and ending points of the slope protection, with a thickness of 0.6m.5. The maximum height of a single-stage slope protection is >6m (the maximum total height of a multi-stage slope protection is >10m) and the continuous length is >50m, with an interval of about 5 (~100m. A mortar-laid rubble stone masonry road step is set along the slope (concrete pouring is used in sections with a speed of 200km / h) to facilitate maintenance operations, and the step width is 1.0m. See "Step Profile" for details.

[0044] 5. An expansion joint with a width of 2 cm is set at the top of the supporting frame every 3 frames. The entire section of the joint is filled with asphalt reinforcement. The expansion joints are all through joints. It is strictly prohibited to cut and set false joints. The position of the expansion joint must be staggered with the drainage to ensure that it is in harmony with the overall slope.

[0045] 6. The main frame drainage channel at the foot of the embankment must be extended and connected to the drainage ditch to form a complete drainage system. The water foundation is built with 0.3m thick mortar-laid stone (the foundation and water retaining edge of the drainage channel in the V-200km / h section are cast with frame grade concrete), and water retaining edges are set on both sides. The specific dimensions are shown in the "Main frame extension drainage channel profile design drawing". After the drainage channel is formed, it must be polished in time to ensure the overall beauty and smooth interception and drainage.

[0046] 7. The distance between shrubs in the V-shaped frame is 1.0m, and one shrub is planted in each hole.

[0047] Construction sequence:

[0048] 1. After constructing the skeleton, sow grass seeds, lay geotextiles, dig holes, plant shrub seedlings, and maintain

[0049] 2. Fill the frame with 10cm thick planting soil, level it, dig holes and fill them with nutrient soil to plant shrubs.

[0050] During construction, the construction technical requirements include the following points:

[0051] 1. Before construction, the loose soil on the slope should be cleaned and the pits should be filled to make the slope roughly flat.

[0052] 2. Before laying (casting) the frame, control piles should be placed at the starting and ending points of each frame according to the design requirements, and the line should be hung for layout. Then the frame groove should be manually excavated and the frame should be embedded in the slope. The burial depth of the main and supporting frames must be guaranteed. After the frame construction is completed, the backfill soil near the groove should be compacted.

[0053] 3. During construction, the joints of the frames should be built (cast) first, and then the frames of other parts should be built (cast). The joints of the two frames should be at the same height.

[0054] 4. During construction, the frame should be built (cast) from bottom to top. The frame should be close to the slope and the water flow surface of the frame should be smooth.

[0055] 5. When the skeleton slope protection is made of concrete, the water retaining edge is cast together with the skeleton: When the skeleton slope protection is made of mortar-laid rubble, the water retaining edge is built with prefabricated concrete blocks and embedded 0.1m into the mortar-laid rubble. During the construction process of the water retaining edge, it must be well connected with the skeleton foundation, and the natural slope must not be eroded by torrents to ensure the stability of the slope.

[0056] 6. The water in the intercepting ditch of the slope platform must flow into the drainage ditch at the appropriate position through the hanging ditch or the intercepting ditches at both ends to form a complete drainage system. At the same time, avoid concentrated water flow to scour the roadbed slope and avoid potential engineering safety hazards.

[0057] In addition, the quality inspection skeleton slope protection should be close to the slope without voids. The allowable errors of each part of the skeleton slope protection are: plane position: ±50mm; base elevation: ±50mm; slope top elevation: -20~0mm; skeleton net distance: ±50mm; slope surface flatness <30mm; skeleton width and side groove height, skeleton thickness and embedding depth, shoulder guard, edging and foundation width, width, step width and depth shall not be less than the design value.

[0058] In the slope protection structure mentioned in the above embodiment, the main frame is made into a trough shape and the support frame is made into an L shape to divert and discharge surface water; a mortar-laid stone masonry step is set along the slope to facilitate maintenance operations, and the step width is 1.0m; asphalt reinforcement is used to fill the entire section of the expansion joint, and the expansion joint position is staggered with the drainage to ensure overall harmony and beauty with the slope; a complete drainage system is further formed by setting up drainage grooves and drainage ditches, while avoiding concentrated water flow to scour the roadbed slope and avoid engineering safety hazards; in addition, the drainage ditch is polished to ensure overall beauty and smooth interception and drainage; by backfilling the planting area in the support frame, it is convenient to plant shrubs and other vegetation that are convenient for conserving soil, thereby further ensuring the stability of the slope.

[0059] By arranging a sampling tube on the dilution barrel, it is convenient to take samples during the stirring process to observe the dilution condition of the paint. Whether the sampling tube is inserted depends on the specific condition of the paint.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A slope protection structure, comprising a protection slope body, on which a water cutoff frame is cast, characterized in that: The water-cutting frame includes a main frame and a branch frame, the main frame is perpendicular to the horizontal line of the protection slope body; the main frame and the branch frame are arranged at 45 degrees, and the branch frame is arranged in a herringbone shape as a whole; a plurality of shrub planting areas are backfilled in the branch frame, the distance between the two shrub planting areas is 1m, and each shrub planting area is planted with shrubs that are convenient for conserving water and soil; A drainage ditch is provided at the foot of the main slope of the protection slope, and a drainage groove is provided on the main frame, and the drainage groove is connected to the drainage ditch; The protection starting point and end point of the protection slope body are provided with mortar-laid rubble stone masonry edges within a width of 0.5m; The upper surface of the protective slope body is provided with steps made of mortar-laid slab stones.

2. A slope protection structure according to claim 1, characterized in that: The main frame is made into a groove shape, and the branch frame is L-shaped.

3. A slope protection structure according to claim 1, characterized in that: The distance between the main frames is 4 to 5 meters. The main frame is 0.6m thick and 0.6m wide. 0.1m thick C25 concrete water retaining edges are set on both sides of the top surface.

4. A slope protection structure according to claim 1, characterized in that: The spacing between the support frames is 3m; the support frames are 0.5m thick and 0.5m wide, and a 0.1m thick C25 concrete water retaining edge is provided on the lower side of the top surface.

5. A slope protection structure according to claim 1, characterized in that: The edging thickness is 0.6m.

6. A slope protection structure according to claim 1, characterized in that: The interval between the steps is 50-100m, and the width of the steps is 1m.

7. A slope protection structure according to claim 1, characterized in that: An expansion joint is arranged at the arch top of the supporting frame, the width of the expansion joint is 2 cm, and the entire section of the expansion joint is filled with asphalt hemp tendons.

8. A slope protection structure according to claim 1, characterized in that: The foundation of the drainage ditch is 0.3m thick mortar-laid rubble stone masonry, and the drainage ditch is also provided with a water retaining edge.

9. The slope protection structure according to claim 1, characterized in that: The soil layer thickness in the shrub planting area is ≥0.1m.

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