Reinforcing structure of dam spillway reverse-arc section retaining wall

Abstract

The utility model provides a kind of dam sluice reverse-arch section retaining wall reinforcing structure, including the retaining wall main body structure being anchored in the one side of sluice reverse-arch section retaining wall, retaining wall main body structure and bottom plate between, retaining wall main body structure and dam body between respectively using several anchoring steel bars to connect fixed, retaining wall main body structure and sluice reverse-arch section retaining wall between using several connecting steel bars to connect fixed, by setting retaining wall main body structure, and using anchoring steel bar and connecting steel bar to be anchored with dam body sluice, reverse-arch section retaining wall respectively of retaining wall main body structure, avoid retaining wall main body structure to displace, effectively increase the stability of dam sluice reverse-arch section retaining wall, guarantee the stable operation of dam sluice.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower technology, and in particular to a reinforcement structure for the retaining wall of the anti-arc section of a dam spillway. Background Technology

[0002] During the construction of the retaining wall of the spillway section of a hydropower dam, the outer side of the retaining wall needs to withstand the lateral pressure of the backfilled soil and rock. During the long-term operation of the dam, due to the instability of the lateral pressure, the retaining wall of the spillway section will shift, causing instability of the retaining wall. This can lead to excessive stress on the retaining wall and its collapse, affecting the normal operation of the dam. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a reinforcement structure for the retaining wall of the dam spillway in the reverse arc section, which can solve the problem that the retaining wall of the dam spillway in the reverse arc section may collapse due to displacement under lateral pressure.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A reinforcement structure for the retaining wall of the spillway counter-arc section includes a main retaining wall structure anchored to the side of the spillway counter-arc section retaining wall facing the backfill soil and rock. The main retaining wall structure is connected and fixed to the base plate and the dam body by a number of anchoring steel bars. The main retaining wall structure is also connected and fixed to the spillway counter-arc section retaining wall by a number of connecting steel bars.

[0006] Based on the above technical solutions, the present invention may also adopt the following further technical solutions, or combine these further technical solutions:

[0007] The retaining wall main structure is provided with a number of first reinforcing bars and second reinforcing bars on the side in contact with the backfill soil and rock. The first reinforcing bars are anchored into the bottom slab and the dam body, and the second reinforcing bars are anchored into the dam body.

[0008] The connecting steel bars are HRB400 grade steel bars with a diameter of 20mm. The reinforcement interval is 150cm and they are arranged in a staggered pattern. The connecting steel bar 1 is vertically anchored into the retaining wall of the reverse arc section of the sluice channel to a depth of 0.5m. The part of the connecting steel bar that is exposed in the retaining wall of the reverse arc section of the sluice channel is inserted into the main structure of the retaining wall to a depth of 0.5m.

[0009] The anchoring steel bars are HRB400 grade steel bars with a diameter of 25mm, a reinforcement interval of 50cm, and are arranged with a longitudinal spacing of 100cm. The anchoring steel bars are vertically anchored into the bottom slab and the dam body to a depth of 0.5m. The portion of the anchoring steel bars that protrudes from the bottom slab and the dam body is inserted into the main structure of the retaining wall to a depth of 0.5m.

[0010] The main structure of the retaining wall is a cast-in-place reinforced concrete structure, the main structure of the retaining wall is a gravity structure, and the main structure of the retaining wall is made of C25 cast-in-place concrete.

[0011] The first reinforcing bar is made of HRB400 grade steel bar with a diameter of 25mm and a spacing of 15cm. The second reinforcing bar is made of HRB400 grade steel bar with a diameter of 20mm and a spacing of 20cm. The anchorage depth of the first reinforcing bar into the bottom slab and the dam body is not less than 0.3m, and the anchorage depth of the second reinforcing bar into the dam body is not less than 0.3m.

[0012] Before the concrete is poured, the contact surfaces of the main structure of the retaining wall with the bottom slab, the dam body, and the reverse arc section of the spillway retaining wall are roughened to a depth of 3cm.

[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects: by setting up the main structure of the retaining wall and using anchoring steel bars and connecting steel bars to anchor the main structure of the retaining wall to the spillway and the reverse arc section retaining wall of the dam body respectively, displacement of the main structure of the retaining wall is avoided, the stability of the reverse arc section retaining wall of the spillway is effectively increased, and the stable operation of the spillway is guaranteed. Attached Figure Description

[0014] Figure 1 This is an exterior view of the present utility model.

[0015] Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote elements with the same or similar functions throughout. However, it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting this utility model. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this utility model.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0018] This utility model provides a reinforcement structure for the retaining wall of the dam spillway's reverse arc section, including a main retaining wall structure 5 anchored to the side of the dam spillway's reverse arc section retaining wall 6 facing the backfill soil and rock 8. The main retaining wall structure 5 is connected and fixed to the base plate 2 and the dam body 3 by a number of anchoring steel bars 4. The main retaining wall structure 5 is connected and fixed to the dam spillway's reverse arc section retaining wall 6 by a number of connecting steel bars 1. Under the combined action of the connecting steel bars 1, the anchoring steel bars 4, and the main retaining wall structure 5, the stability of the dam spillway's reverse arc section retaining wall 6 is ensured, and no displacement occurs.

[0019] On the side of the retaining wall main structure 5 that is in contact with the backfill soil and rock 8, there are a number of first reinforcing bars 71 and second reinforcing bars 72. The first reinforcing bars 71 are anchored into the bottom plate 2 and the dam body 3, and the second reinforcing bars 72 are anchored into the dam body 3.

[0020] In this embodiment, the steel reinforcement 1 is HRB400 grade steel reinforcement with a diameter of 20mm. The reinforcement interval is 150cm and it is arranged in a quincunx pattern. The steel reinforcement 1 is vertically anchored into the retaining wall 6 of the sluice channel with an anchoring depth of 0.5m. The part of the steel reinforcement 1 that is exposed in the retaining wall 6 of the sluice channel is inserted into the main structure 5 of the retaining wall with an insertion depth of 0.5m.

[0021] In this embodiment, the anchoring steel bars 4 are HRB400 grade steel bars with a diameter of 25mm, a densification interval of 50cm, and are arranged with a longitudinal spacing of 100cm. The anchoring steel bars 4 are vertically anchored into the bottom plate 2 and the dam body 3 respectively, with an anchoring depth of 0.5m. The part of the anchoring steel bars 4 that is exposed in the bottom plate 2 and the dam body 3 is inserted into the main structure of the retaining wall 5, with an insertion depth of 0.5m.

[0022] The main structure 5 of the retaining wall adopts a cast-in-place reinforced concrete structure, and the main structure 5 of the retaining wall adopts a gravity structure. The main structure 5 of the retaining wall adopts C25 cast-in-place concrete.

[0023] In this embodiment, the first reinforcing steel bar 71 is made of HRB400 grade steel bar with a diameter of 25mm and a spacing of 15cm. The second reinforcing steel bar 72 is made of HRB400 grade steel bar with a diameter of 20mm and a spacing of 20cm. The anchorage depth of the first reinforcing steel bar 71 into the bottom plate 2 and the dam body 3 is not less than 0.3m, and the anchorage depth of the second reinforcing steel bar 72 into the dam body 3 is not less than 0.3m.

[0024] The thickness of the protective layer for the steel reinforcement used in this structure is 5cm.

[0025] The type and dimensions of the connecting steel bars 1, anchoring steel bars 4, and the main structure of the retaining wall 5 can be adjusted according to the actual situation through stress calculations to ensure that the retaining wall 6 of the chute's reverse arc section can withstand the lateral pressure of the backfilled soil and rock 8 on the outside and remain stable.

[0026] Before the concrete is poured, the contact surfaces of the main structure 5 of the retaining wall with the bottom plate 2, the dam body 3, and the retaining wall of the spillway reverse arc section 6 are all roughened to a depth of 3cm.

[0027] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the dam spillway reverse arc section retaining wall reinforcement structure of this utility model, and can produce the positive effects described in this utility model.

[0028] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "connected," and "sleeve-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two mechanisms, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

[0030] Furthermore, in practicing the claims of this utility model, those skilled in the art can understand and influence variations to the disclosed embodiments through a study of the drawings, the disclosure, and the appended claims. Additionally, in the claims and description, words such as "comprising" and "containing" do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the present utility model are covered by the scope of the claims of the present utility model, and will not be listed here.

Claims

1. A reinforcement structure for the retaining wall of the reverse arc section of a dam spillway, characterized in that, The retaining wall main structure (5) is anchored to the side of the retaining wall (6) of the spillway facing the backfill soil and rock (8). The retaining wall main structure (5) is connected and fixed to the bottom plate (2) and the dam body (3) by several anchoring steel bars (4). The retaining wall main structure (5) and the spillway reverse arc section retaining wall (6) are connected and fixed by several connecting steel bars (1).

2. The reinforcement structure for the retaining wall of the dam spillway reverse arc section as described in claim 1, characterized in that, The retaining wall main structure (5) is provided with a number of first reinforcing bars (71) and second reinforcing bars (72) on the side in contact with the backfill soil and rock (8). The first reinforcing bars (71) are anchored into the bottom plate (2) and the dam body (3), and the second reinforcing bars (72) are anchored into the dam body (3).

3. The reinforcement structure for the retaining wall of the dam spillway reverse arc section as described in claim 1, characterized in that, The connecting steel bar (1) is HRB400 grade steel bar with a diameter of 20mm. The reinforcement interval is 150cm and it is arranged in a quincunx pattern. The connecting steel bar (1) is vertically anchored into the retaining wall (6) of the sluice channel with an anchoring depth of 0.5m. The part of the connecting steel bar (1) that is exposed in the retaining wall (6) of the sluice channel is inserted into the main structure (5) of the retaining wall with an insertion depth of 0.5m.

4. The reinforcement structure for the retaining wall of the dam spillway reverse arc section as described in claim 1, characterized in that, The anchoring steel bars (4) are HRB400 grade steel bars with a diameter of 25mm and a densification interval of 50cm. They are arranged with a longitudinal spacing of 100cm. The anchoring steel bars (4) are vertically anchored into the bottom plate (2) and the dam body (3) respectively, with an anchoring depth of 0.5m. The part of the anchoring steel bars (4) that is exposed in the bottom plate (2) and the dam body (3) is inserted into the main structure of the retaining wall (5) with an insertion depth of 0.5m.

5. The reinforcement structure for the retaining wall of the dam spillway reverse arc section as described in claim 1, characterized in that, The main structure (5) of the retaining wall adopts a cast-in-place reinforced concrete structure, the main structure (5) of the retaining wall adopts a gravity structure, and the main structure (5) of the retaining wall adopts C25 cast-in-place concrete.

6. The reinforcement structure for the retaining wall of the dam spillway reverse arc section as described in claim 2, characterized in that, The first reinforcing bar (71) is made of HRB400 grade steel bar with a diameter of 25mm and a spacing of 15cm. The second reinforcing bar (72) is made of HRB400 grade steel bar with a diameter of 20mm and a spacing of 20cm. The first reinforcing bar (71) is anchored into the bottom plate (2) and the dam body (3) to a depth of not less than 0.3m. The second reinforcing bar (72) is anchored into the dam body (3) to a depth of not less than 0.3m.

7. The reinforcement structure for the retaining wall of the dam spillway reverse arc section as described in claim 1, characterized in that, Before the concrete is poured, the contact surfaces of the main structure of the retaining wall (5) with the bottom plate (2), the dam body (3), and the retaining wall (6) of the spillway are roughened to a depth of 3cm.

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