Slope waste slag field structure of water conservancy and hydropower engineering

Abstract

The utility model relates to a side slope waste slag field structure of water conservancy and hydropower engineering. The side slope waste slag field structure of the water conservancy and hydropower engineering is arranged on a near-water side slope and is provided with waste slag bodies piled on the side slope; the slag blocking dam structure is arranged at the bottom of the waste slag body on the side slope, and the slag blocking dam structure can separate the waste slag body and the water body on the near-water side slope; the dry stone slope protection body is laid on the waste slag body, and the bottom of the dry stone slope protection body is arranged on the slag blocking dam structure; the slag retaining dam structure is provided with a rock block bottom protection body laid on a side slope, a rock ballast filling body is arranged on the rock block bottom protection body, and a slope protection structure is laid on an upstream slope of the rock block bottom protection body and the rock ballast filling body. By arranging the slag blocking dam structure on the side slope, when waste slag materials are piled at the position of the backwater side of the slag blocking dam structure on the side slope, the slag blocking dam structure can prevent the waste slag bodies piled on the side slope from falling into a water body under the action of self weight to affect water conservancy and hydropower engineering.

Description

Technical Field

[0001] This utility model relates to a slope spoil disposal site structure for water conservancy and hydropower projects. It is applicable to the technical field of water conservancy and hydropower construction engineering. Background Technology

[0002] In water conservancy and hydropower projects, the excavation of earth and rock is involved in a large amount of work. However, the physical and mechanical properties of some excavated materials are insufficient to meet the project's requirements, necessitating the establishment of specialized spoil heaps for storing these unusable materials. Currently, most water conservancy and hydropower projects choose spoil heap locations above water, which facilitates the construction of bottom retaining structures and ensures the safety of the spoil heap. However, some water conservancy and hydropower projects are located in high mountain and canyon areas with narrow and steep terrain, making spoil heap layout difficult and often limiting in capacity. For these types of projects, existing spoil heap designs are insufficient to meet their disposal requirements. Utility Model Content

[0003] The technical problem to be solved by this utility model is: In order to solve the above-mentioned technical problem, this utility model provides a slope spoil disposal site structure for water conservancy and hydropower projects.

[0004] The technical solution adopted in this utility model is: a slope spoil disposal site structure for water conservancy and hydropower projects, arranged on a water-near slope, having the following characteristics:

[0005] The waste material was piled up on the slope;

[0006] The debris barrier structure is located at the bottom of the waste disposal area on the slope. The debris barrier structure can separate the waste disposal area from the water body on the water-near slope.

[0007] The dry-laid stone slope protection body is laid on the waste material, and the bottom of the dry-laid stone slope protection body is arranged on the waste dam structure.

[0008] The dam structure comprises a riprap bottom layer laid on the slope, a stone fill layer arranged on the riprap bottom layer, and a slope protection structure laid on the upstream slope of the riprap bottom layer and the stone fill layer. Thus, by arranging the dam structure on the slope, when waste material is piled on the downstream side of the dam structure, the dam structure effectively separates the waste material on the slope from the water body, preventing the waste material piled on the slope from falling into the water body under its own weight and impacting the water conservancy and hydropower project.

[0009] The slag fill consists of coarse slag fill arranged on the riprap bottom support and fine slag fill arranged on the coarse slag fill. Thus, the slag barrier structure consists of fine slag fill, coarse slag fill, and riprap bottom support from top to bottom, with the particle size gradually increasing from top to bottom, resulting in good slag retention.

[0010] The slope protection structure comprises a rubble slope protection body laid on the upstream slope of the rubble bottom protection body and the gravel fill body, and an artificial block slope protection body laid on the rubble slope protection body. Reinforced gabions are installed at the top of both the rubble slope protection body and the artificial block slope protection body, positioned corresponding to the fine gravel fill body. Thus, by laying the rubble slope protection body, the artificial block slope protection body, and the reinforced gabions on the upstream slope of the dam structure, the fine gravel fill body, the coarse gravel fill body, and the rubble bottom protection body are effectively maintained.

[0011] The artificial block slope protection body consists of artificial blocks laid on the water-facing slope. The artificial blocks are quadrilateral concrete blocks, and hooks are installed on the artificial blocks.

[0012] The top of the riprap bottom support is horizontal, and the maximum thickness of the riprap bottom support is one-quarter of the height of the dam. In this way, the horizontal top of the riprap bottom support facilitates the placement of the rubble backfill on the riprap bottom support.

[0013] The top elevation of the slag barrier structure is 4m above the highest water level, the top width of the slag barrier structure is 10m, and the thickness of the fine stone slag filling is 1m.

[0014] Both the riprap slope protection body and the artificial block slope protection body have a thickness of 1.5m and a slope of 1:1.6.

[0015] The diameter of the riprap in the bottom protection body is not less than 1m, the diameter of the riprap in the slope protection body is not less than 0.8m, the diameter of the stone chips in the coarse stone slag filling body is less than 0.8m, and the diameter of the stone chips in the fine stone slag filling body is less than 0.3m.

[0016] The thickness of the dry-laid stone slope protection body is 0.5m.

[0017] A construction method for a slope spoil disposal site structure in a water conservancy and hydropower project, using the aforementioned slope spoil disposal site structure for a water conservancy and hydropower project, is as follows:

[0018] Based on the shape of the spoil disposal site, the measurement and layout were carried out to mark the starting and ending points of the spoil dam structure.

[0019] From the starting point and end point of the slag barrier dam structure, boulders and stone chips are continuously circulated and filled towards the middle to form a boulder bottom protection body and a coarse stone chip filling body, which are then compacted.

[0020] At the top of the rubble filling body, a rubble slope protection body is formed on the water-facing slope of the rubble dam structure by dumping rubble with dump trucks;

[0021] The tetrahedrons were lifted one by one to the design position using lifting machinery to form an artificial block slope protection structure.

[0022] Using cranes to lift and manually assist in straightening, steel gabions are placed on top of the riprap slope and the artificial block slope, and all steel gabions are bound or welded together to form a unified whole.

[0023] Dump trucks are used to lay fine stone material on top of the coarse stone slag filling body, and compaction and leveling are carried out using rolling machinery to form a fine stone slag filling body.

[0024] Remove topsoil, tree roots, garbage, etc. from the waste disposal area;

[0025] Fill the waste material to the height of the first-level slope and construct a dry-laid stone slope protection structure.

[0026] Continue filling in the waste slag.

[0027] The beneficial effects of this utility model are as follows: By arranging a slag retaining dam structure on the slope of a water conservancy and hydropower project, this utility model facilitates the retention of slag on the slope when waste material is piled on the back side of the slag retaining dam structure, preventing the waste material from falling into the water. This utility model also features a slag retaining dam structure with a horizontal top riprap bottom, a coarse stone fill on the riprap bottom, a fine stone fill on the coarse stone fill, and a riprap slope protection body and an artificial block slope protection body on the water-facing slope of the slag retaining dam structure. This design provides excellent retention and effectively mitigates the loss caused by water erosion.

[0028] By arranging the spoil heap's retaining dam structure underwater and the spoil material above water, the construction requirements for the retaining dam structure are reduced, allowing construction in non-dry conditions. This also increases the spoil heap's storage area, improves its overall capacity, and reduces the difficulty of achieving overall earthwork balance. Furthermore, the use of riprap at the bottom of the retaining dam structure, along with external riprap slope protection, artificial block slope protection, and reinforced gabions, ensures the dam's resistance to erosion and improves the overall stability of the spoil heap. Additionally, maintaining a certain width at the top of the retaining dam structure preserves the ability to inspect, maintain, and patrol the slopes, further ensuring the long-term stability of the spoil heap. Therefore, this type of spoil heap is effective in increasing spoil capacity, reducing construction requirements, and ensuring overall stability. Attached Figure Description

[0029] Figure 1 : A schematic diagram of the structure of this utility model.

[0030] Figure 2 : A schematic diagram of the slag-trapping dam structure in this utility model.

[0031] Figure 3 , Figure 4 : A schematic diagram of the structure of the artificial block in this utility model.

[0032] In the diagram: 1. Slope; 2. Waste disposal area; 3. Dry-laid stone slope protection; 4. Waste retaining dam structure; 41. Fine stone fill; 42. Reinforced gabion; 43. Coarse stone fill; 44. Artificial block slope protection; 45. Rockfill slope protection; 46. Rockfill bottom protection; 5. Water surface; 6. Artificial block; 7. Hook. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0034] This embodiment describes a slope spoil disposal site structure for a water conservancy and hydropower project.

[0035] In this embodiment, a dam structure 4 is provided on the slope 1. The dam structure 4 includes a riprap bottom support 46 laid on the slope 1, a coarse stone fill 43 laid on top of the riprap bottom support 46, and a fine stone fill 41 laid on top of the coarse stone fill 43. The top of the riprap bottom support 46 is horizontal, which facilitates the laying of the coarse stone fill 43 on top of the riprap bottom support 46. The dam structure 4 is trapezoidal in shape. The top elevation of the dam structure 4 is 4m above the highest water level of the water surface 5. The width of the top of the dam structure 4 is 10m. The thickness of the fine stone fill 41 is 1m. The maximum thickness of the riprap bottom support 46 is one-quarter of the height of the dam. The riprap bottom protection body 46 has a riprap particle size of not less than 1m, the coarse stone slag filling body 43 has a stone slag particle size of less than 0.8m, and the fine stone slag filling body 41 has a stone slag particle size of less than 0.3m. By laying the riprap bottom protection body 46, coarse stone slag filling body 43, and fine stone slag filling body 41 sequentially from bottom to top on the near-water slope 1, the riprap particle size of the riprap bottom protection body 46, coarse stone slag filling body 43, and fine stone slag filling body 41 gradually decreases, which can maintain the stability of the slag barrier structure 4 when the water flows from top to bottom within the slag barrier structure 4.

[0036] In this embodiment, a slope protection structure is laid on the upstream slope of the slag retaining dam structure 4. The slope protection structure includes a rubble slope protection body 45 laid on the upstream slope of the rubble bottom protection body 46 and the slag fill body, and an artificial block slope protection body 44 laid on the rubble slope protection body 45. Reinforced gabions 42 are installed at the top of the rubble slope protection body 45 and the artificial block slope protection body 44, positioned corresponding to the fine slag fill body 41. Both the rubble slope protection body 45 and the artificial block slope protection body 44 have a thickness of 1.5m and a slope of 1:1.6. The riprap slope protection body 45 has riprap with a particle size of not less than 0.8m. The artificial block slope protection body 44 consists of artificial blocks 6 laid on the water-facing slope. The artificial blocks 6 are quadrilateral concrete blocks, and hooks 7 are installed on the artificial blocks 6. The weight of the artificial blocks 6 is 2.45t. The dimensions of the reinforced gabion 42 are 2m×1m×1m (length×width×height). In this way, by laying the riprap slope protection body 45 and the artificial block slope protection body 44 on the water-facing slope of the dam structure 4, the stability of the dam structure 4 is maintained when the water flows along the slope 1 within the dam structure 4.

[0037] In this embodiment, a dry-laid stone revetment 3 is laid on the water-facing slope 1 of the waste disposal body 2. The bottom of the dry-laid stone revetment 3 is arranged on the waste retaining dam structure 4, and the thickness of the dry-laid stone revetment 3 is 0.5m. This effectively prevents the bottom of the waste disposal body 2 from collapsing due to water flow, and from collapsing onto the waste retaining dam structure 4 or even the water conservancy and hydropower project.

[0038] The construction method in this embodiment is as follows:

[0039] Based on the shape of the spoil disposal site, the starting and ending points of the spoil dam structure were marked.

[0040] From the starting point and the end point of the slag barrier structure 4, boulders and stone chips are continuously circulated and filled towards the middle to form a boulder bottom protection body 46 and a coarse stone chip filling body 43, which are then compacted.

[0041] At the top of the rubble filling body, a rubble slope protection body 45 is formed on the water-facing slope of the rubble barrier structure 4 by dumping rubble with dump trucks;

[0042] The tetrahedrons were hoisted one by one to the design position using lifting machinery to form an artificial block slope protection structure 44;

[0043] Using cranes to lift and manually assist in straightening, steel gabions 42 are placed on top of the riprap slope protection body 45 and the artificial block slope protection body 44, and all steel gabions 42 are bound or welded together to form a unified whole.

[0044] On top of the coarse stone slag fill 43, dump trucks are used to lay fine stone slag, and rolling machinery is used to compact and level it to form fine stone slag fill 41.

[0045] Remove topsoil, tree roots, garbage, etc. from the waste disposal area;

[0046] Fill the waste material to the height of the first-level slope 1, and build a dry-laid stone slope protection body 3;

[0047] Continue filling in the waste slag.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A slope spoil disposal site structure for a water conservancy and hydropower project, characterized in that: Arranged on the slope (1), it has the following characteristics: The waste material (2) was piled up on the slope (1); The slag barrier structure (4) is arranged at the bottom of the slag body (2) on the slope (1). The slag barrier structure (4) can separate the slag body (2) on the slope (1) from the water body. The dry-laid stone slope protection body (3) is laid on the waste material body (2), and the bottom of the dry-laid stone slope protection body (3) is arranged on the waste dam structure (4); The slag barrier structure (4) has a riprap bottom protection body (46) laid on the slope (1), a slag fill body is arranged on the riprap bottom protection body (46), and a slope protection structure is laid on the water-facing slope of the riprap bottom protection body (46) and the slag fill body.

2. The slope spoil disposal site structure for a water conservancy and hydropower project according to claim 1, characterized in that: The stone slag filling body has a coarse stone slag filling body (43) arranged on the rubble retaining body (46) and a fine stone slag filling body (41) arranged on the coarse stone slag filling body (43).

3. The slope spoil disposal site structure for a water conservancy and hydropower project according to claim 2, characterized in that: The slope protection structure has a rubble slope protection body (45) laid on the water-facing slope of the rubble bottom protection body (46) and the stone slag filling body, and an artificial block slope protection body (44) laid on the rubble slope protection body (45). A reinforced gabion (42) is set at the top of the rubble slope protection body (45) and the artificial block slope protection body (44), and the reinforced gabion (42) is arranged at the position corresponding to the fine stone slag filling body (41).

4. The slope spoil disposal site structure for a water conservancy and hydropower project according to claim 3, characterized in that: The artificial block slope protection body (44) consists of artificial blocks (6) laid on the water-facing slope. The artificial blocks (6) are quadrilateral concrete blocks, and hooks (7) are installed on the artificial blocks (6).

5. The slope spoil disposal site structure for a water conservancy and hydropower project according to claim 1, characterized in that: The top of the riprap bottom support (46) is horizontal, and the maximum thickness of the riprap bottom support (46) is one-quarter of the height of the slag barrier structure (4).

6. The slope spoil disposal site structure for a water conservancy and hydropower project according to claim 2, characterized in that: The top elevation of the slag barrier structure (4) is 4m above the highest water level, the top width of the slag barrier structure (4) is 10m, and the thickness of the fine stone slag filling body (41) is 1m.

7. The slope spoil disposal site structure for a water conservancy and hydropower project according to claim 3, characterized in that: The thickness of both the riprap slope protection body (45) and the artificial block slope protection body (44) is 1.5m, and the slope is 1:1.

6.

8. The slope spoil disposal site structure for a water conservancy and hydropower project according to claim 3, characterized in that: The boulders of the bottom protection body (46) have a boulder particle size of not less than 1m, the boulders of the slope protection body (45) have a boulder particle size of not less than 0.8m, the coarse stone slag filling body (43) has a stone slag particle size of less than 0.8m, and the fine stone slag filling body (41) has a stone slag particle size of less than 0.3m.

9. The slope spoil disposal site structure for a water conservancy and hydropower project according to claim 1, characterized in that: The thickness of the dry-laid stone slope protection body (3) is 0.5m.

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