Fabricated gallery in dam

Abstract

The utility model discloses an assembly type gallery in a dam, which comprises standard parts, a crescent rib wall and a rectangular rib wall, the standard parts comprise rectangular inner wall surfaces and arched domes, a plurality of standard parts are arranged and connected to form a straight section, the crescent rib wall is arranged on one side of the inner wall of the arched domes of the standard parts to form a first standard block, and the rectangular rib wall is arranged on the other side of the inner wall of the arched domes. The rectangular rib wall is arranged on one side of the bottom of the rectangular inner wall surface of the standard component to form a second standard block, and the first standard blocks and the second standard blocks are alternately connected to form a stepped ascending lifting section; the multiple straight sections and the multiple lifting sections are connected with one another and are continuously laid to form a complete gallery. The use amount of formwork supporting materials can be reduced, the construction cost is reduced, the erection suspension height of the climbing section gallery formwork is reduced, and construction is safer; and the influence on dam body rolling is reduced, and rapid and continuous construction of the roller compacted concrete dam is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of assembly type dam inner corridors, belong to water conservancy and hydropower engineering technical field. BACKGROUND

[0002] Rolling concrete dam is a widely used water conservancy dam type, and a corridor is usually arranged inside the dam. At present, the form of the dam inner corridor has two kinds of cast-in-place type and prefabricated type. When the dam inner corridor is constructed by using cast-in-place concrete, the corridor formwork erection and steel bar installation need to be carried out before the opening of the warehouse. Usually, the elevation of the corridor will change with the climbing, in which case, a large amount of support material is needed as the formwork support and is embedded in the concrete at one time. During the erection of the formwork and the installation of the steel bar, the construction period will be affected due to the long standby time of the warehouse. If the climbing elevation exceeds the rolling layer thickness, the rolling concrete dam cannot be constructed quickly and continuously.

[0003] The cast-in-place concrete corridor has the following disadvantages: the formwork erection and steel bar installation must be completed before the opening of the warehouse, which prolongs the construction period of the dam body; the formwork support material is embedded in the dam concrete and cannot be recycled, which increases the construction cost; the formwork erection of the corridor in the climbing section is mostly suspended, which poses a safety risk; the rolling concrete cannot form a quick and continuous construction, the interlayer joints of the dam surface increase, and there is a risk of leakage;

[0004] The conventional prefabricated concrete corridor usually adopts an inclined arrangement scheme in the climbing section, and a large amount of support material needs to be pre-embedded in the dam body for later rolling and cannot be recycled. In addition, the length of the single segment of the inclined section prefabricated block is large in order to reduce the joints, which also affects the rolling of the dam body.

[0005] To solve the above problems, the present patent proposes an assembly type dam inner corridor, which can solve the problem of prefabricated corridor in the climbing section. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide an assembly type dam inner corridor, which eliminates the traditional contact type installation process, reduces the amount of formwork support material, and reduces the construction cost.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme: an assembly type dam inner corridor, which comprises standard parts, the standard parts are composed of rectangular inner wall surfaces and arched domes, and the segment length can be adjusted according to the lifting weight of the on-site crane; a plurality of standard parts are arranged and connected to form a straight section.

[0008] It also includes crescent rib walls and rectangular rib walls. The crescent rib walls are arranged on one side of the inner wall of the arched dome of the standard part to form a first standard block, and the rectangular rib walls are arranged on one side of the bottom of the rectangular inner wall of the standard part to form a second standard block. Multiple first standard blocks and second standard blocks are alternately connected to form a step-by-step rising lifting section; multiple straight sections and lifting sections are connected to each other and laid continuously to form a complete corridor.

[0009] In the aforementioned prefabricated dam corridor, the bottom of the rectangular inner wall of the first standard block is aligned and connected with the top of the rectangular rib wall of the second standard block below it, the top of the arched dome of the second standard block below is aligned and connected with the bottom of the crescent rib wall of the first standard block, the first standard block is aligned and connected with the second standard block above it, and the second standard block is used as the starting point of the bottom of the lifting section, and the first standard block is used as the end point of the top of the lifting section.

[0010] In the aforementioned assembled dam corridor, both the front and rear side walls of the standard parts are provided with standard waterstops.

[0011] In the aforementioned assembled dam corridor, the outer surface of the corridor of the crescent rib wall is provided with a waterproof coating.

[0012] In the aforementioned assembled dam corridor, the outer surface of the corridor of the rectangular rib wall is provided with a waterproof coating.

[0013] In the aforementioned assembled dam corridor, a crescent rib wall waterstop is provided at the connection between the crescent rib wall and the second standard block.

[0014] In the aforementioned assembled dam internal corridor, a rectangular rib wall waterstop is provided at the connection between the rectangular rib wall and the first standard block.

[0015] In the aforementioned assembled dam corridor, the standard parts are prefabricated reinforced concrete structures.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] (1) The utility model adopts prefabricated parts to be assembled on site to form the corridor, which reduces the amount of formwork support materials and reduces construction costs.

[0018] (2) The lifting section of the utility model adopts a stepped rise and uses prefabricated parts to be installed alternately, which reduces the suspended height of the corridor template in the climbing section and makes construction safer;

[0019] (3) The utility model can reduce the impact of rolling on the dam body, facilitate the rapid and continuous construction of the roller-compacted concrete dam, and the anti-seepage structure is set at the connection point, which has a good anti-seepage effect;

[0020] (4) The prefabricated parts of the present invention are easy to construct and have a simple structure, which not only shortens the construction period but also can be recycled to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the standard component structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the straight section structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the crescent rib wall structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the rectangular rib wall structure of the utility model;

[0026] Figure 6 This is a schematic diagram of the first standard block structure of the utility model;

[0027] Figure 7 This is a schematic diagram of the second standard block structure of the utility model;

[0028] Figure 8 It is a structural schematic diagram of the lifting section of the utility model.

[0029] Figure markings: 1-straight section, 2-lifting section, 3-standard part, 4-crescent rib wall, 5-rectangular rib wall, 6-first standard block, 7-second standard block, 8-standard part waterstop, 9-crescent rib wall waterstop, 10-rectangular rib wall waterstop.

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0031] Embodiment 1 of the present invention: An assembled dam internal gallery comprises a standard component 3, wherein the standard component 3 is composed of a rectangular inner wall surface and an arched dome, and the segment length can be adjusted and determined according to the hoisting weight of the on-site crane;

[0032] The corridor can be divided into a straight section 1 and a raised section 2. Multiple straight sections 1 and raised sections 2 are interconnected and laid continuously to form a complete corridor; the straight section 1 is composed of multiple standard parts 3 arranged and connected; the raised section 2 adopts a step-by-step ascent and is divided into a first standard block 6 and a second standard block 7. Multiple first standard blocks 6 and second standard blocks 7 are alternately connected to form a step-by-step ascent raised section 2. The first standard block 6 is composed of a crescent rib wall 4 and a standard part 3. The crescent rib wall 4 is arranged on one side of the inner wall of the arched dome of the standard part 3 to form the first standard block 6. The second standard block 7 is composed of a rectangular rib wall 5 and a standard part 3. The rectangular rib wall 5 is arranged on one side of the bottom of the rectangular inner wall of the standard part 3 to form the second standard block 7.

[0033] Embodiment 2 of the present invention: An assembled dam internal gallery comprises a standard component 3, wherein the standard component 3 is composed of a rectangular inner wall surface and an arched dome, and the segment length can be adjusted and determined according to the hoisting weight of the on-site crane;

[0034] The corridor can be divided into a straight section 1 and a raised section 2. Multiple straight sections 1 and raised sections 2 are interconnected and laid continuously to form a complete corridor; the straight section 1 is composed of multiple standard parts 3 arranged and connected; the raised section 2 adopts a step-by-step ascent and is divided into a first standard block 6 and a second standard block 7. Multiple first standard blocks 6 and second standard blocks 7 are alternately connected to form a step-by-step ascent raised section 2. The first standard block 6 is composed of a crescent rib wall 4 and a standard part 3. The crescent rib wall 4 is arranged on one side of the inner wall of the arched dome of the standard part 3 to form the first standard block 6. The second standard block 7 is composed of a rectangular rib wall 5 and a standard part 3. The rectangular rib wall 5 is arranged on one side of the bottom of the rectangular inner wall of the standard part 3 to form the second standard block 7.

[0035] Among them, when the first standard block 6 is connected to the second standard block 7, the bottom of the rectangular inner wall of the first standard block 6 is aligned with the top of the rectangular rib wall 5 of the second standard block 7 below it, the top of the arched dome of the second standard block 7 below is aligned with the bottom of the crescent rib wall 4 of the first standard block 6, the first standard block 6 is aligned with the second standard block 7 above it, and the second standard block 7 is used as the starting point at the bottom of the lifting section 2, and the first standard block 6 is used as the end point at the top of the lifting section 2.

[0036] Embodiment 3 of the present invention: An assembled dam internal gallery comprises a standard part 3, wherein the standard part 3 is composed of a rectangular inner wall surface and an arched dome, wherein the segment length can be adjusted and determined according to the hoisting weight of the on-site crane, and the standard part 3 is a prefabricated reinforced concrete structure;

[0037] The corridor can be divided into a straight section 1 and a raised section 2. Multiple straight sections 1 and raised sections 2 are interconnected and laid continuously to form a complete corridor; the straight section 1 is composed of multiple standard parts 3 arranged and connected; the raised section 2 adopts a step-by-step ascent and is divided into a first standard block 6 and a second standard block 7. Multiple first standard blocks 6 and second standard blocks 7 are alternately connected to form a step-by-step ascent raised section 2. The first standard block 6 is composed of a crescent rib wall 4 and a standard part 3. The crescent rib wall 4 is arranged on one side of the inner wall of the arched dome of the standard part 3 to form the first standard block 6. The second standard block 7 is composed of a rectangular rib wall 5 and a standard part 3. The rectangular rib wall 5 is arranged on one side of the bottom of the rectangular inner wall of the standard part 3 to form the second standard block 7.

[0038] Among them, when the first standard block 6 is connected to the second standard block 7, the bottom of the rectangular inner wall of the first standard block 6 is aligned with the top of the rectangular rib wall 5 of the second standard block 7 below it, and the top of the arched dome of the second standard block 7 below is aligned with the bottom of the crescent rib wall 4 of the first standard block 6. The first standard block 6 is aligned with the second standard block 7 above it, and the bottom starting point of the lifting section 2 uses the second standard block 7, and the top end point of the lifting section 2 uses the first standard block 6. Each first standard block 6 or second standard block 7 of the lifting section 2 can be supported by the surface layer of the bottom roller-compacted concrete dam body, reducing the amount of side support brackets and minimizing the impact on the upper concrete compaction.

[0039] Specifically, the front and rear side walls of the standard part 3 are provided with a standard waterstop 8, the crescent rib wall 4 and the second standard block 7 are connected with a crescent rib wall waterstop 9, and the rectangular rib wall 5 and the first standard block 6 are connected with a rectangular rib wall waterstop 10 to ensure the anti-seepage performance of each connection of the corridor, and the outer surface of the corridor of the crescent rib wall 4 and the rectangular rib wall 5 is provided with a waterproof coating, that is, the crescent rib wall 4 and the rectangular rib wall 5 are painted with waterproof coating on the side facing the post-cast dam body to ensure waterproof performance.

[0040] The working principle of an embodiment of the present invention: The present invention is constructed by on-site assembly of prefabricated standard parts 3, first standard blocks 6 and second standard blocks 7, forming a straight section 1 and a lifting section 2. The straight section 1 and the lifting section 2 are connected to form the entire corridor. The lifting section 2 rises in a stepped manner, and each lifting section 2 is arranged at intervals by first standard blocks 6 and second standard blocks 7. The first standard blocks 6 and second standard blocks 7 of each climbing section 2 can serve as support for the surface layer of the bottom roller-compacted concrete dam body, reducing the amount of side support brackets and minimizing the impact on the compaction of the upper concrete layer. It can reduce the amount of formwork support materials used and reduce construction costs; at the same time, it can reduce the suspended height of the climbing section corridor formwork, making construction safer; and it can reduce the impact on the compaction of the dam body, facilitating the rapid and continuous construction of the roller-compacted concrete dam.

Claims

1. An assembled dam corridor, characterized in that: The standard part (3) is composed of a rectangular inner wall and an arched dome; A plurality of the standard parts (3) are arranged and connected to form a straight section (1); It also includes a crescent rib wall (4) and a rectangular rib wall (5), wherein the crescent rib wall (4) is arranged on one side of the inner wall of the arched dome of the standard component (3) to form a first standard block (6), and the rectangular rib wall (5) is arranged on one side of the bottom of the rectangular inner wall of the standard component (3) to form a second standard block (7), and a plurality of the first standard blocks (6) and the second standard blocks (7) are alternately connected to form a step-by-step ascending lifting section (2); A plurality of straight sections (1) and raised sections (2) are interconnected and laid continuously to form a complete corridor.

2. The assembled dam corridor according to claim 1, characterized in that: The bottom of the rectangular inner wall of the first standard block (6) is aligned and connected with the top of the rectangular rib wall (5) of the second standard block (7) below it, the top of the arched dome of the second standard block (7) below is aligned and connected with the bottom of the crescent rib wall (4) of the first standard block (6), and the first standard block (6) is aligned and connected with the second standard block (7) above it.

3. The assembled dam corridor according to claim 2, characterized in that: The front and rear side walls of the standard part (3) are both provided with standard part waterstops (8).

4. The assembled dam corridor according to claim 3, characterized in that: The outer surface of the corridor of the crescent rib wall (4) is provided with a waterproof coating.

5. The assembled dam corridor according to claim 4, characterized in that: The outer surface of the corridor of the rectangular rib wall (5) is provided with a waterproof coating.

6. The assembled dam corridor according to claim 3, characterized in that: A crescent rib wall water stop (9) is provided at the connection between the crescent rib wall (4) and the second standard block (7).

7. The assembled dam corridor according to claim 6, characterized in that: A rectangular rib wall water stop (10) is provided at the connection between the rectangular rib wall (5) and the first standard block (6).

8. The assembled dam corridor according to claim 1, characterized in that: The standard part (3) is a prefabricated reinforced concrete structure.

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