Simple and convenient assembly type reinforced concrete prefabricated corridor suitable for concrete dam

Abstract

The utility model provides a simple and convenient assembly type reinforced concrete prefabricated corridor suitable for a concrete dam, which is formed by assembling a prefabricated reinforced concrete cover plate, a prefabricated reinforced concrete side wall and a prefabricated reinforced concrete bottom plate, expansion water-stop strips are arranged in a joint between the prefabricated reinforced concrete cover plate and the prefabricated reinforced concrete side wall and a joint between the prefabricated reinforced concrete side wall and the prefabricated reinforced concrete bottom plate; and the prefabricated reinforced concrete cover plate, the prefabricated reinforced concrete side wall, the prefabricated reinforced concrete bottom plate and the expansion water stop strip are fixedly connected through expansion bolts. The prefabricated corridor can be prefabricated in advance in a prefabricating field, standard formworks are adopted, customization is not needed, formwork cost is saved, resource investment of a construction site is reduced, construction is convenient, and construction cost is low; the precast blocks are small in size, are rectangular plates and are convenient to stack and transport; the structure is simple in shape and convenient to prefabricate; the precast blocks are light in weight and convenient to hoist and assemble; the method is suitable for small and medium-sized projects with limited construction conditions.

Description

Technical Field

[0001] The utility model relates to a simple assembled reinforced concrete prefabricated gallery suitable for a concrete dam, and the prefabricated gallery has the characteristics of simple prefabrication, convenient transportation, fast assembly and the like. Background Art

[0002] At present, in the construction of hydraulic concrete dams, corridors for grouting, drainage, transportation and observation are often required in the concrete dam. The construction methods are generally divided into cast-in-place and prefabrication. For small and medium-sized projects with long corridors, if the cast-in-place method is used, the workload of erecting the formwork on the warehouse surface is large, a large amount of manpower and materials are required, and the construction period is long; if the overall prefabrication method is used, the corridor is large in size, the prefabrication is difficult, the transportation is inconvenient, and the hoisting capacity requirements are high, which is not suitable for small and medium-sized projects with limited construction conditions. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a simple and easy-to-assemble reinforced concrete prefabricated corridor suitable for concrete dams, solve the problem of internal corridor construction of concrete dams in small and medium-sized hydropower projects with limited construction conditions, and achieve low construction investment, fast construction speed and low engineering cost.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a simple assembled reinforced concrete prefabricated corridor suitable for concrete dams, characterized in that: it is composed of a prefabricated reinforced concrete cover plate, a prefabricated reinforced concrete side wall and a prefabricated reinforced concrete bottom plate, and expansion waterstop strips are arranged at the joints between the prefabricated reinforced concrete cover plate and the prefabricated reinforced concrete side wall and the joints between the prefabricated reinforced concrete side wall and the prefabricated reinforced concrete bottom plate; the prefabricated reinforced concrete cover plate, the prefabricated reinforced concrete side wall, the prefabricated reinforced concrete bottom plate and the expansion waterstop strip are fixedly connected by expansion bolts, thereby forming a complete section of the prefabricated reinforced concrete corridor.

[0005] Furthermore, the precast reinforced concrete side walls include a precast reinforced concrete left wall and a precast reinforced concrete right wall, and the precast reinforced concrete cover plate, the precast reinforced concrete left wall, the precast reinforced concrete right wall and the precast reinforced concrete bottom plate are all rectangular precast plates.

[0006] Furthermore, a supporting step is arranged on the inner side of the top of the precast reinforced concrete side wall, the precast reinforced concrete cover plate is placed on the supporting step, an L-shaped joint is formed between the precast reinforced concrete side wall and the precast reinforced concrete cover plate, an expansion water stop strip is arranged in the vertical joint, and the expansion bolt passes through the vertical joint to fix the precast reinforced concrete cover plate, the precast reinforced concrete side wall and the expansion water stop strip.

[0007] Furthermore, both ends of the precast reinforced concrete base plate are connected to the inner wall of the precast reinforced concrete side wall, and the joints are vertical joints and expansion waterstop strips are provided; the expansion bolts pass through the vertical joints to fix the precast reinforced concrete base plate, the precast reinforced concrete side wall and the expansion waterstop strips.

[0008] Furthermore, a sunken step is arranged on one or both sides of the precast reinforced concrete base plate, and the sunken step and the precast reinforced concrete side wall form a drainage ditch at the bottom of the corridor. The vertical step surface of the sunken step of the precast reinforced concrete base plate is connected to the precast reinforced concrete side wall through a vertical seam, and an expansion waterstop is arranged in the vertical seam. The expansion bolt passes through the vertical seam to fix the precast reinforced concrete base plate, the precast reinforced concrete side wall and the expansion waterstop strip.

[0009] The beneficial effects of the utility model are as follows: the prefabricated corridor can be prefabricated in advance at the prefabrication site. The prefabricated corridor adopts standard templates and does not need to be customized, which saves template costs, reduces resource investment in the corridor construction site, is convenient for construction, and has low construction costs; the prefabricated blocks are small in size and are all rectangular plates, which are convenient for stacking and transportation; the structure is simple and prefabricated is convenient; the prefabricated blocks are light in weight and easy to lift and assemble; and it is suitable for small and medium-sized projects with limited construction conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0011] Figure 2 It is a structural schematic diagram of embodiment 2 of the present utility model. DETAILED DESCRIPTION

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0013] like Figure 1 , 2 As shown, the utility model provides a simple and easy-to-assemble reinforced concrete prefabricated corridor suitable for concrete dams, which is assembled from a prefabricated reinforced concrete cover plate 1, a prefabricated reinforced concrete side wall and a prefabricated reinforced concrete bottom plate 3. Expansion waterstop strips 5 are arranged at the joints between the prefabricated reinforced concrete cover plate 1 and the prefabricated reinforced concrete side wall and the joints between the prefabricated reinforced concrete side wall and the prefabricated reinforced concrete bottom plate 3; the prefabricated reinforced concrete cover plate 1, the prefabricated reinforced concrete side wall, the prefabricated reinforced concrete bottom plate 3 and the expansion waterstop strips 5 are fixedly connected by expansion bolts 4, thereby forming a complete section of the reinforced concrete prefabricated corridor.

[0014] The precast reinforced concrete side walls include a precast reinforced concrete left wall 2a and a precast reinforced concrete right wall 2b. The precast reinforced concrete cover plate 1, the precast reinforced concrete left wall 2a, the precast reinforced concrete right wall 2b and the precast reinforced concrete bottom plate 3 are all rectangular precast plates.

[0015] The prefabricated corridor of the utility model has a size customized according to design requirements. The prefabricated block-type prefabricated reinforced concrete cover plate 1, the prefabricated reinforced concrete left wall 2a, the prefabricated reinforced concrete right wall 2b and the prefabricated reinforced concrete bottom plate 3 are prefabricated and cured in the factory. After being finished, they are transported to the site in pieces for hoisting and installation. Water-stopping measures are provided at the end joints of the two adjacent sections of the corridor after assembly to prevent water seepage in the corridor, and then concrete is poured on both sides of the installed corridor.

[0016] A preferred embodiment is that a supporting step 6 is provided on the inner side of the top of the precast reinforced concrete side wall, the precast reinforced concrete cover plate 1 is placed on the supporting step 6, an L-shaped joint is formed between the precast reinforced concrete side wall and the precast reinforced concrete cover plate, an expansion water stop strip 5 is provided in the vertical joint, and the expansion bolt 4 passes through the vertical joint to fix the precast reinforced concrete cover plate 1, the precast reinforced concrete side wall (left wall 2a or right wall 2b) and the expansion water stop strip 5 to be connected.

[0017] like Figure 1 As shown, sunken steps 7 are provided on both sides of the precast reinforced concrete base plate, and the sunken steps 7 and the precast reinforced concrete left wall 2a or the precast reinforced concrete right wall 2b on the corresponding side form a corridor bottom drainage ditch 70, the vertical step surface of the sunken step 7 of the precast reinforced concrete base plate is connected to the precast reinforced concrete side wall through a vertical seam, and an expansion waterstop 5 is provided in the vertical seam, and the expansion bolts 4 pass through the vertical seam to fix the precast reinforced concrete base plate 1, the precast reinforced concrete side wall and the expansion waterstop 5 to each other.

[0018] Reference Figure 2 , which is different from the above embodiment, a sinking step 7 is provided on one side of the precast reinforced concrete bottom plate, and the sinking step 7 and the precast reinforced concrete side wall (the right side wall 2b in this embodiment) form a corridor bottom drainage ditch 70, and the other side of the precast reinforced concrete bottom plate is connected to the precast reinforced concrete left side wall 2a, and the expansion bolt 4 passes through the vertical joint to fix the precast reinforced concrete bottom plate 3, the precast reinforced concrete left side wall 2a and the expansion water stop strip 5. The gas part of this embodiment is connected with Figure 1 The embodiments shown are identical.

[0019] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention.

Claims

1. A simple assembled reinforced concrete prefabricated gallery suitable for concrete dams, characterized by: It is composed of a precast reinforced concrete cover plate, precast reinforced concrete side walls and a precast reinforced concrete bottom plate. Expansion waterstop strips are arranged at the joints between the precast reinforced concrete cover plate and the precast reinforced concrete side walls and at the joints between the precast reinforced concrete side walls and the precast reinforced concrete bottom plate. The precast reinforced concrete cover plate, the precast reinforced concrete side walls, the precast reinforced concrete bottom plate and the expansion waterstop strips are fixedly connected by expansion bolts, thereby forming a complete section of precast reinforced concrete corridor.

2. A simple assembled reinforced concrete prefabricated gallery suitable for concrete dams as claimed in claim 1, characterized in that: The precast reinforced concrete side walls include a precast reinforced concrete left wall and a precast reinforced concrete right wall. The precast reinforced concrete cover plate, the precast reinforced concrete left wall, the precast reinforced concrete right wall and the precast reinforced concrete bottom plate are all rectangular precast plates.

3. The simple assembled reinforced concrete prefabricated gallery suitable for concrete dams as claimed in claim 1, characterized in that: A supporting step is arranged on the inner side of the top of the precast reinforced concrete side wall, and the precast reinforced concrete cover plate is placed on the supporting step. An L-shaped joint is formed between the precast reinforced concrete side wall and the precast reinforced concrete cover plate, and an expansion water stop strip is arranged at the vertical joint. The expansion bolt passes through the vertical joint to fix the precast reinforced concrete cover plate, the precast reinforced concrete side wall and the expansion water stop strip.

4. The simple assembled reinforced concrete prefabricated gallery suitable for concrete dams as claimed in claim 1, characterized in that: The two ends of the precast reinforced concrete bottom plate are connected to the inner wall of the precast reinforced concrete side wall, and the joints are vertical joints and expansion water stop strips are arranged; the expansion bolts pass through the vertical joints to fix the precast reinforced concrete bottom plate, the precast reinforced concrete side wall and the expansion water stop strips.

5. The simple assembled reinforced concrete prefabricated gallery suitable for concrete dams as claimed in claim 1, characterized in that: A sunken step is arranged on one or both sides of the precast reinforced concrete base plate, and the sunken step and the precast reinforced concrete side wall form a drainage ditch at the bottom of the corridor. The vertical step surface of the sunken step of the precast reinforced concrete base plate is connected to the precast reinforced concrete side wall through a vertical seam, and an expansion waterstop is arranged in the vertical seam. The expansion bolt passes through the vertical seam to fix the precast reinforced concrete base plate, the precast reinforced concrete side wall and the expansion waterstop strip.

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