Built-in pump room structure for floating slab section
By using the method of connecting the prefabricated floating plate bed and the side shear hinge, the problems of low construction accuracy and unfriendly environment of the built-in pump room floating plate bed in the prior art are solved, high-quality construction and structural stability are achieved, and the phenomenon of bed disease is avoided.
Patent Information
- Application Number
- CN202421066111.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-16
AI Technical Summary
In the prior art, the floating plate roadbed of the built-in pump room has low construction accuracy, unfriendly environment, and is prone to diseases such as roadbed settlement deformation and concrete cracking.
A prefabricated floating plate track bed is used, and a hole is reserved on the pump pit position of the drain pump. The base is sinking to the bottom of the pipe sheet to form a water collecting hole where the drain pump can be placed. The prefabricated floating plate is connected through a side-mounted shear hinge to ensure the integrity and stability of the structure.
It improves construction quality and accuracy, reduces the impact on the environment, avoids the settlement deformation of the roadbed and concrete diseases, simplifies the construction process, and improves the construction efficiency.
Smart Images
Figure CN222632490U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel construction, in particular to a floating plate section built-in pump house structure. Background Art
[0002] At present, in the existing technology, the floating slab roadbed at the built-in pump house adopts a cast-in-place floating slab solution, which mainly relies on manual labor and small machines for construction. The construction accuracy is reduced due to the influence of the construction work surface and environmental factors. At the same time, due to the need for cast-in-place floating slabs, the construction site has to go through the transportation, tamping, and maintenance of concrete, which is not friendly to the environment. In addition, the integral roadbed built by the cast-in-place floating slab process is prone to roadbed settlement deformation, concrete cracking and fragmentation and other diseases. Summary of the invention
[0003] The purpose of the utility model is to provide a built-in pump room structure in a floating slab section in accordance with the above-mentioned deficiencies of the prior art, adopt a prefabricated floating slab ballast, and reserve an opening on the plate at the pump pit position for arranging a drainage pump. The base sinks to the bottom of the pipe segment at this location to form a sump for placing the drainage pump, thereby improving the construction quality.
[0004] The purpose of this utility model is achieved by the following technical solutions:
[0005] A built-in pump room structure for a floating slab section, characterized in that it comprises a plurality of prefabricated floating slabs arranged along a line direction, openings are respectively reserved at both end positions of the plurality of prefabricated floating slabs, the plate end openings of adjacent prefabricated floating slabs are combined to form a sump, a drainage pump is arranged in the sump, a middle partition wall is arranged under the prefabricated floating slab, drainage holes for connecting the sump are opened on the middle partition wall, and adjacent prefabricated floating slabs are connected by side shear hinges to form an integral structure.
[0006] The prefabricated floating plate is arranged on a base through a vibration isolator, the base is arranged on a pipe segment, and the base sinks to the bottom of the pipe segment at the plate end opening position of the prefabricated floating plate.
[0007] A sealing strip is arranged between the outer side surface of the prefabricated floating slab and the base.
[0008] The substrate is C40 fiber concrete.
[0009] A water-swellable waterproofing glue is pre-buried in the interior of the base at a position adjacent to the sealing strip.
[0010] The side shear hinges are arranged on the inner side and the outer side of the prefabricated floating slab.
[0011] The utility model has the advantages of ensuring construction quality and construction accuracy and being friendly to the construction environment; having a simple and reasonable structure and convenient construction, which can effectively improve construction efficiency and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a plan view of the utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the pump room in the utility model;
[0014] Figure 3 for Figure 1 Middle AA section;
[0015] Figure 4 for Figure 1 Middle BB cross-section. DETAILED DESCRIPTION
[0016] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:
[0017] like Figure 1-4 As shown, the marks 1-9 in the figure respectively represent: prefabricated floating plate 1, plate end opening 2, sump 3, central ditch 4, side shear hinge 5, sealing strip 6, C40 fiber concrete base 7, vibration isolator 8, water-expandable waterstop 9.
[0018] Example: Figures 1 to 4 As shown, in this embodiment, the built-in pump room structure on the floating slab section is used to construct a pump room in the tunnel, wherein a C40 fiber concrete base 7 is arranged on the tunnel segment, and the C40 fiber concrete base 7 is used to support the upper structure.
[0019] Specifically, combined Figure 1 and Figure 2 As shown, the floating plate section built-in pump house structure in this embodiment includes a plurality of prefabricated floating plates 1 arranged at intervals along the line direction; Figure 1 For example, there are seven prefabricated track slabs in total in the figure, which are divided into two ordinary prefabricated floating slabs located on both sides of the line and five pump room prefabricated floating slabs located at the pump room. The two side plate ends of the prefabricated floating slab 1 at the pump room are respectively provided with plate end openings 2, and the positions of the plate end openings 2 of the two adjacent prefabricated floating slabs 1 match and are combined together to form a sump 3, which is used for line drainage; when in use, a drainage pump can be set in one or more of the sump 3 for line drainage.
[0020] like Figure 1 and Figure 2As shown, a central ditch 4 is provided at the location of the sump 3, and the central ditch 4 is used for connecting and draining. In this embodiment, a middle partition wall is provided under each prefabricated floating slab 1, and the middle partition wall is used to separate the sump 3. Drain holes are provided on the middle partition wall to connect the sumps.
[0021] Combination Figure 3 and Figure 4 As shown, the prefabricated floating slab 1 is supported on a C40 fiber concrete base 7 through a vibration isolator 8. Side shear hinges 5 are respectively provided on the inner and outer sides of the prefabricated floating slab 1. Adjacent prefabricated floating slabs 1 are connected by the side shear hinges 5 to form an integral structure, thereby transmitting shear force and bending moment and coordinating the deformation of the front and rear slabs.
[0022] like Figure 3 or Figure 4 As shown, a sealing strip 6 is provided between the outer side of the prefabricated floating slab 1 and the C40 fiber concrete base 7 to achieve a sealing and water-stopping effect to prevent water from affecting the use of the vibration isolator 8. A water-swelling waterproofing glue 9 is provided at the position of the outer side of the C40 fiber concrete base 7 near the prefabricated floating slab 1. The water-swelling waterproofing glue 9 is located at the fitting surface between the C40 fiber concrete base 7 and the pipe segment to prevent water from entering under the ballast and causing damage after operation.
[0023] In the specific implementation of this embodiment: the fiber main raw material of the C40 fiber concrete base 7 is 100% pure polypropylene, which must be processed by modification and surface antistatic treatment process, and meet the relevant requirements of polypropylene fiber in the "Synthetic Fiber for Cement Concrete and Mortar" (GB / T21120-2018) standard, and 8kg of toughened polypropylene fiber per cubic meter of concrete. The base concrete impermeability grade should not be lower than P10 grade.
[0024] The surface of the sump 3 should be waterproofed and the surface should be coated with PTN waterproof sealing material, including the pit wall and the middle partition wall. The surface dust and accumulated water should be cleaned before construction.
[0025] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.
Claims
1. A built-in pump house structure in a floating slab area, characterized by: It comprises a plurality of prefabricated floating plates arranged along the line direction, openings are reserved at both ends of the plurality of prefabricated floating plates respectively, the plate end openings of adjacent prefabricated floating plates are combined to form a sump, a drainage pump is arranged in the sump, a middle partition wall is arranged under the prefabricated floating plates, drainage holes for connecting the sump are opened on the middle partition wall, and adjacent prefabricated floating plates are connected by side shear hinges to form an integral structure.
2. A floating slab built-in pump house structure according to claim 1, characterized in that: The prefabricated floating plate is arranged on a base through a vibration isolator, the base is arranged on a pipe segment, and the base sinks to the bottom of the pipe segment at the plate end opening position of the prefabricated floating plate.
3. A floating slab built-in pump house structure according to claim 2, characterized in that: A sealing strip is arranged between the outer side surface of the prefabricated floating slab and the base.
4. The floating slab built-in pump house structure according to claim 2, characterized in that: The substrate is C40 fiber concrete.
5. The floating slab built-in pump house structure according to claim 2, characterized in that: A water-swellable waterproofing glue is pre-buried in the interior of the base at a position adjacent to the sealing strip.
6. The floating slab built-in pump house structure according to claim 1, characterized in that: The side shear hinges are arranged on the inner side and the outer side of the prefabricated floating slab.