Bin sealing block dam body structure

Abstract

The utility model discloses a sealing block dam body structure which comprises an upstream roller compacted concrete body, a middle sealing block flange and a downstream rock ballast body, the middle sealing block flange comprises a plurality of sealing blocks, the sealing blocks are stacked from bottom to top, the upper sealing block is suspended out of the upstream roller compacted concrete body relative to the lower sealing block, and the lower sealing block is suspended out of the upstream roller compacted concrete body relative to the lower sealing block. Each bin sealing block is clamped between an upstream roller compacted concrete body and a downstream rock ballast body, an upper positioning part is arranged at the top of each bin sealing block, a lower positioning part is arranged at the bottom of each bin sealing block, and the lower positioning part of the upper bin sealing block is meshed with the upper positioning part of the lower bin sealing block. The sealing block dam body structure is short in construction period, high in efficiency and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete dams, in particular to a dam body structure with sealed blocks. Background Art

[0002] Roller-compacted concrete (RCC) is a new dam construction technology, constructed using earth-rockfill dam technology. It combines the rapid construction speed of earth-rockfill dams with the strength and durability of concrete dams. Unlike conventional concrete dam construction methods that use vibrators to compact the concrete, RCC utilizes earth-rockfill dam construction equipment to vibrate and compact dry, non-slump concrete.

[0003] Existing Chinese patent application number 201710979015.0 discloses a roller-compacted concrete (RCC) dam and its construction method. Specifically, the dam comprises an upstream water-facing area, an interior area, and a downstream area. The interior area is located between the upstream and downstream areas. The upstream water-facing area utilizes low-plasticity, low-heat-of-hydration, high-graded concrete, while the interior area utilizes three-graded RCC. The downstream area utilizes modified concrete. The low-plasticity, low-heat-of-hydration, high-graded concrete, three-graded RCC, and modified concrete are mixed with a hydration heat inhibitor. Each area of ​​the RCC dam is cast using a different concrete mix. Concrete must be poured in each area, and then the concrete must solidify before construction can begin. This results in a long construction cycle, low efficiency, and high costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a dam body structure with a short construction period, high efficiency and low cost.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A sealing block dam structure includes an upstream roller-compacted concrete body, a middle sealing block rib and a downstream slag body. The middle sealing block rib includes multiple sealing blocks, each of which is stacked from bottom to top, and the upper sealing block is cantilevered toward the upstream roller-compacted concrete body relative to the lower sealing block. Each of the sealing blocks is clamped between the upstream roller-compacted concrete body and the downstream slag body. An upper positioning part is provided on the top of the sealing block and a lower positioning part is provided on the bottom. The lower positioning part of the upper sealing block engages with the upper positioning part of the lower sealing block.

[0007] As a further improvement of the above technical solution:

[0008] The upper positioning portion is an upper convex portion, and the lower positioning portion is an upper concave portion.

[0009] The sealing blocks are prefabricated concrete blocks.

[0010] A latch steel bar is embedded in the sealing block, the top of which extends upward from the sealing block, the upper positioning portion is formed at the top of the latch steel bar, a latch hole is reserved at the bottom of the sealing block, and the lower positioning portion is formed in the latch hole.

[0011] Anchor steel bars are provided on one side of the sealing block facing the upstream roller-compacted concrete body, and the anchor steel bars are embedded in the upstream roller-compacted concrete body.

[0012] There are multiple anchoring steel bars, which are arranged at intervals along the length direction of the sealing block.

[0013] One end of the anchor steel bar embedded in the upstream roller compacted concrete body is provided with a hook portion.

[0014] The top of the storage block is provided with a lifting ear, and the bottom is provided with a receiving groove, and the lifting ear of the lower storage block is inserted into the receiving groove of the upper storage block.

[0015] The sealing block is in the shape of a cuboid.

[0016] The sealing block is 6.2m long, 0.4m wide and 0.3m high.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The construction process of the dam structure of the utility model is as follows: first, the dam blocks are stacked from bottom to top at the construction location to form a central dam block rib. Then, roller-compacted concrete is poured on the upstream side of the central dam block rib to form an upstream roller-compacted concrete body. Finally, slag is filled on the downstream side of the central dam block rib to form a downstream slag body. During construction, only the upstream roller-compacted concrete body needs to wait for the concrete to solidify. In fact, the upstream roller-compacted concrete body and the downstream slag body can even be constructed simultaneously, which shortens the construction period, improves efficiency, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the sealing block dam structure of the utility model.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the sealing block of the sealing block dam structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the top view of the sealing block of the sealing block dam structure of the utility model.

[0022] The numbers in the figure represent:

[0023] 1. Upstream RCC body; 2. Middle sealing block rib; 21. Sealing block; 22. Upper positioning part; 23. Lower positioning part; 3. Downstream slag body; 4. Pin reinforcement; 5. Pin hole; 6. Anchor reinforcement; 61. Hook part; 7. Lifting ear; 8. Receiving groove. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0027] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] Figures 1 to 3An embodiment of the sealing block dam structure of the utility model is shown. The sealing block dam structure of this embodiment includes an upstream roller-compacted concrete body 1, a middle sealing block rib 2 and a downstream slag body 3. The middle sealing block rib 2 includes a plurality of sealing blocks 21. Each sealing block 21 is stacked from bottom to top, and the upper sealing block 21 is cantilevered toward the upstream roller-compacted concrete body 1 relative to the lower sealing block 21. Each sealing block 21 is clamped between the upstream roller-compacted concrete body 1 and the downstream slag body 3. An upper positioning portion 22 is provided at the top of the sealing block 21 and a lower positioning portion 23 is provided at the bottom. In the upper and lower adjacent sealing blocks 21, the lower positioning portion 23 of the upper sealing block 21 is engaged with the upper positioning portion 22 of the lower sealing block 21.

[0029] Construction process: First, the individual closure blocks 21 are stacked from bottom to top at the construction location to form the middle closure block rib 2. RCC is then poured upstream of the middle closure block rib 2 to form the upstream RCC body 1. Finally, slag is placed downstream of the middle closure block rib 2 to form the downstream slag body 3. During construction, only the upstream RCC body 1 requires time to solidify. Both the upstream RCC body 1 and the downstream slag body 3 can even be constructed simultaneously, resulting in a short construction period, high efficiency, and low costs.

[0030] Furthermore, in this embodiment, the upper positioning portion 22 is an upper convex portion, and the lower positioning portion 23 is an upper concave portion. The sealing blocks 21 are stacked from bottom to top, with the upper sealing block 21 cantilevering upstream from the lower sealing block 21 toward the RCC body 1, forming a stepped shape overall. The lower positioning portion 23 of the upper sealing block 21 engages with the upper positioning portion 22 of the lower sealing block 21, thereby improving the bonding strength of the upper and lower sealing blocks 21.

[0031] Furthermore, in this embodiment, the enclosure blocks 21 are precast concrete blocks. During construction, one layer of enclosure blocks 21 can be installed and a layer of roller-compacted concrete can be poured. Preferably, the enclosure blocks 21 have a concrete strength grade of C20 and are internally reinforced with ring beams made of A12 and A8 steel.

[0032] Furthermore, in this embodiment, a latching steel bar 4 is pre-embedded in the sealing block 21. The top of the latching steel bar 4 extends upward from the sealing block 21. An upper positioning portion 22 is formed at the top of the latching steel bar 4. A latching hole 5 is reserved at the bottom of the sealing block 21, and a lower positioning portion 23 is formed within the latching hole 5. Preferably, the latching steel bar 4 is B25 steel, with an exposed depth of 10 cm. Preferably, the latching hole 5 is 10 cm deep.

[0033] Furthermore, in this embodiment, anchor bars 6 are provided on the side of the sealing block 21 facing the upstream RCC mass 1. These anchor bars 6 are embedded in the upstream RCC mass 1, enhancing the overall structural strength. Preferably, the anchor bars 6 are B20 steel bars, and the depth of the anchor bars 6 in the upstream RCC mass 1 is 130 cm. The end of the anchor bar 6 facing away from the upstream RCC mass 1 is pre-embedded in the sealing block 21 for a length of 20 cm.

[0034] Furthermore, in this embodiment, a plurality of anchoring steel bars 6 are provided and spaced apart along the length direction of the sealing block 21 to improve the anchoring strength.

[0035] Furthermore, if Figure 2 As shown, in this embodiment, one end of the anchor steel bar 6 embedded in the upstream RCC body 1 is provided with a hook portion 61, thereby further improving the anchoring strength.

[0036] Furthermore, in this embodiment, the top of the closure block 21 is provided with a lifting lug 7 and the bottom with a receiving slot 8. The lifting lug 7 of the lower closure block 21 is inserted into the receiving slot 8 of the upper closure block 21. The lifting lug 7 is used for lifting the closure block 21. Of course, in other embodiments, the receiving slot 8 may not be provided, and the lifting lug 7 is only used temporarily to lift the closure block 21. After the closure block 21 is installed, it is cut away to facilitate the installation of the upper closure block 21. Preferably, the lifting lug 7 is pre-embedded in the closure block 21.

[0037] Furthermore, in this embodiment, the sealing block 21 is a rectangular parallelepiped. Preferably, the sealing block 21 is 6.2m long, 0.4m wide, and 0.3m high.

[0038] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the scope of protection of the present invention.

Claims

1. A sealed block dam structure, characterized by: The invention comprises an upstream roller compacted concrete body (1), a middle sealing block rib (2) and a downstream slag body (3), wherein the middle sealing block rib (2) comprises a plurality of sealing blocks (21), each of the sealing blocks (21) is stacked from bottom to top, and the upper sealing block (21) is cantilevered relative to the lower sealing block (21) toward the upstream roller compacted concrete body (1), each of the sealing blocks (21) is clamped between the upstream roller compacted concrete body (1) and the downstream slag body (3), an upper positioning portion (22) is provided at the top of the sealing block (21), and a lower positioning portion (23) is provided at the bottom, and the lower positioning portion (23) of the upper sealing block (21) is engaged with the upper positioning portion (22) of the lower sealing block (21).

2. The dam body structure of the sealing block according to claim 1 is characterized in that: The upper positioning portion (22) is an upper convex portion, and the lower positioning portion (23) is an upper concave portion.

3. The dam body structure of the sealing block according to claim 2 is characterized in that: The sealing block (21) is a prefabricated concrete block.

4. The sealing block dam structure according to claim 3 is characterized in that: A latch steel bar (4) is pre-embedded in the sealing block (21), the top end of the latch steel bar (4) protrudes above the sealing block (21), the upper positioning portion (22) is formed at the top end of the latch steel bar (4), a latch hole (5) is reserved at the bottom of the sealing block (21), and the lower positioning portion (23) is formed in the latch hole (5).

5. The dam body structure of the sealing block according to claim 1 is characterized in that: Anchor steel bars (6) are provided on the side of the sealing block (21) facing the upstream roller-compacted concrete body (1), and the anchor steel bars (6) are embedded in the upstream roller-compacted concrete body (1).

6. The sealing block dam structure according to claim 5, characterized in that: There are a plurality of anchoring steel bars (6) arranged at intervals along the length direction of the sealing block (21).

7. The sealing block dam structure according to claim 5, characterized in that: One end of the anchor steel bar (6) embedded in the upstream roller-compacted concrete body (1) is provided with a hook portion (61).

8. The sealing block dam structure according to any one of claims 1 to 7, characterized in that: The top of the storage block (21) is provided with a lifting ear (7) and the bottom is provided with a receiving groove (8), and the lifting ear (7) of the lower storage block (21) is inserted into the receiving groove (8) of the upper storage block (21).

9. The sealing block dam structure according to any one of claims 1 to 7, characterized in that: The sealing block (21) is in the shape of a rectangular parallelepiped.

10. The sealing block dam structure according to claim 9, characterized in that: The sealing block (21) is 6.2 m long, 0.4 m wide and 0.3 m high.

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