Light waterproof suspended ceiling structure of vault underground powerhouse

Abstract

The utility model discloses a light waterproof suspended ceiling structure of a vault underground powerhouse, which comprises an anchor rod part embedded on a vault main body structure; the upper and lower ends of the first suspender are respectively connected with the anchor rod part and the waterproof suspended ceiling main keel; the waterproof suspended ceiling main keel is obliquely arranged along the cross section of the underground powerhouse, the left end and the right end of the waterproof suspended ceiling main keel are connected with the arch crown main body structure through anchor plates, a drainage part used for drainage is arranged in the waterproof suspended ceiling main keel, and the lower end of the drainage part communicates with a drainage pipe; the waterproof suspended ceiling secondary keel is vertically connected with the waterproof suspended ceiling main keel in an intersecting manner; and the waterproof suspended ceiling panel is fixedly arranged at the upper ends of the waterproof suspended ceiling main keel and the waterproof suspended ceiling secondary keel. According to the utility model, the first suspender is arranged below the existing anchor rod part, and the plane frame structure consisting of the waterproof suspended ceiling main keel, the waterproof suspended ceiling secondary keel and the waterproof suspended ceiling panel is arranged below the first suspender, so that excessive excavation space of the underground powerhouse cavern is not occupied, and the ventilation pipeline is convenient to construct.

Description

Technical Field

[0001] This utility model relates to the technical field of ceiling structure for underground powerhouses in water conservancy and hydropower projects, specifically to a lightweight waterproof ceiling structure for an arched underground powerhouse. Background Technology

[0002] The existing underground factory buildings with tall arched ceilings are generally anchor-sprayed arches, which are divided into three types: steel and concrete composite floor slab arched ceiling structures, beamless arched corrugated steel roofs, and steel truss arch beam ceiling structures.

[0003] The steel-concrete composite floor slab arched ceiling structure consists of a steel-concrete composite floor slab formed by two-sided ceiling support structures, arch beams, ceiling anchors, profiled steel sheets, and concrete slabs. The beamless arched corrugated steel roof is generally made of color-coated steel sheets with a sloping groove thickness of not less than 1mm. The steel truss arched ceiling structure consists of steel truss arch beams erected between two side anchor beams, with roof purlins fixed to the upper flange of the steel truss arch beams, and roof waterproofing panels fixed above the roof purlins. The steel-concrete composite floor slab arched ceiling structure and the steel truss arched ceiling structure have the problem of occupying excavation space for underground plant caverns, requiring higher structural heights to meet cavern clearance requirements, thus increasing project costs. The beamless arched corrugated steel roof has the problem of a large rise in the roof height, making it difficult to install ventilation ducts, which are located under the roof.

[0004] Therefore, it is urgent to propose a new solution to the above problems. Summary of the Invention

[0005] This utility model provides a lightweight waterproof ceiling structure for an arched underground factory, which can solve the problems of existing steel and concrete composite floor slab arched ceiling structures and steel truss arch beam ceiling structures, which occupy the excavation space of the underground factory cavern, require a higher structural height to meet the cavern clearance requirements, and increase the project cost; and the problem of the difficulty in constructing factory ventilation ducts in beamless arched corrugated steel roof canopies.

[0006] This utility model provides a lightweight waterproof ceiling structure for an arched underground factory, comprising:

[0007] The anchor bolt is embedded in the main structure of the arch.

[0008] The first hanger rod is connected at its upper and lower ends to the anchor rod and the main keel of the waterproof ceiling, respectively.

[0009] The main keel of the waterproof ceiling is inclined along the cross section of the underground factory building. The left and right ends of the main keel are connected to the main structure of the arched ceiling through anchor plates. The main keel of the waterproof ceiling is provided with a drainage section for drainage, and the lower end of the drainage section is connected to a drainage pipe.

[0010] The secondary keel of the waterproof ceiling is perpendicularly connected to the main keel of the waterproof ceiling.

[0011] Waterproof ceiling panels are fixedly installed on the upper end of the main and secondary joists of the waterproof ceiling.

[0012] Furthermore, the surface of the main arch structure facing the first hanger is covered with shotcrete and wire mesh.

[0013] Furthermore, a first angle steel structure for supporting the waterproof ceiling panel is provided in the center of the main keel of the waterproof ceiling, and multiple first angle steel structures are arranged alternately on both sides, with the first angle steel structures arranged parallel to the main keel or the secondary keel of the waterproof ceiling.

[0014] Furthermore, the drainage section includes a second angle steel structure, a U-shaped drainage ditch, and an edge channel steel. The U-shaped drainage ditch is connected to the main keel of the waterproof ceiling by overlapping. The edge channel steel is located on the side of the U-shaped drainage ditch away from the anchor plate. The second angle steel structure is located at the angle between the U-shaped drainage ditch and the main keel of the waterproof ceiling. The second angle steel structure is used to connect the U-shaped drainage ditch and the main keel of the waterproof ceiling. The bottom end of the U-shaped drainage ditch is connected to the drainage pipe at the lower end.

[0015] Furthermore, a waterproof membrane is provided on the top of the waterproof ceiling panel.

[0016] Furthermore, multiple air ducts are installed between the main arch structure and the main waterproof ceiling keel, and air outlets are provided at the lower ends of the air ducts.

[0017] Furthermore, the lower end of the waterproof ceiling secondary keel is connected to a decorative ceiling via a second hanger.

[0018] Furthermore, both the main keel and the secondary keel of the waterproof ceiling are channel steel, and the size of the main keel is larger than that of the secondary keel.

[0019] Furthermore, the upper end of the first rod is provided with a bent portion, and the bent portion and the bottom end of the anchor rod are connected by lap welding.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model utilizes the existing anchor rod to set a first hanger rod below it, and then sets a planar frame structure below it consisting of a waterproof ceiling main keel, a waterproof ceiling secondary keel and a waterproof ceiling panel. This does not occupy too much underground factory cavern excavation space, and the ventilation duct construction is convenient.

[0022] 2. This utility model ensures drainage by incorporating a drainage section in the main keel of the waterproof ceiling and connecting it to a drainage pipe at its lower end. In addition, the left and right ends of the main keel of the waterproof ceiling are connected to the main structure of the arched ceiling through anchor plates, ensuring the structural strength of the planar frame structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the waterproof ceiling structure for an underground factory building according to this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of the waterproof ceiling structure for underground factory buildings according to this utility model;

[0025] Figure 3 This is the utility model Figure 1 Detail drawing of node A at the top of the middle slope;

[0026] Figure 4 This is the utility model Figure 1 Detail drawing of node B at the central drainage ditch;

[0027] Figure 5 This is a diagram showing the arrangement of the main and secondary keel of a waterproof ceiling with decorative features, as per this utility model.

[0028] Figure 6 This is a diagram showing the layout of the main and secondary keel of a waterproof ceiling without decoration, according to this utility model.

[0029] Attached reference numerals: 1. Main structure of the arch; 11. Shotcrete with wire mesh; 2. Anchor bolt; 3. First hanger; 31. Bending section; 41. Main keel of the waterproof ceiling; 42. Secondary keel of the waterproof ceiling; 51. Anchor plate; 52. Long bolt; 61. Drainage section; 611. Second angle steel structure; 612. U-shaped drainage ditch; 613. Edge channel steel; 62. Drainage pipe; 7. Waterproof ceiling panel; 71. Waterproof membrane; 72. First angle steel structure; 81. Air duct; 82. Air outlet; 91. Second hanger; 92. Decorative ceiling. Detailed Implementation

[0030] To further understand the utility model's content, features, and effects, the following embodiments are provided, along with accompanying drawings. Figures 1-6 The details are as follows.

[0031] like Figures 1-4As shown, this embodiment provides a lightweight waterproof ceiling structure for an arched underground factory, including: an anchor rod part 2, which is embedded in the main arch structure 1, wherein the anchor rod part 2 includes many anchor rods already present in the main structure construction, wherein a first hanger 3 is welded to the lower end of the anchor rod at a suitable position, and the remaining anchor rods are not used; the first hanger 3, whose upper and lower ends are respectively connected to the anchor rod part 2 and the main waterproof ceiling keel 41, wherein the size of the first hanger 3 is φ25; the main waterproof ceiling keel 41 is inclined along the cross section of the underground factory, specifically, it is arranged using a 5% bidirectional slope construction process, the waterproof ceiling keel 41 is inclined along the cross section of the underground factory, specifically, it is arranged using a 5% bidirectional slope construction process, the waterproof ceiling keel 41 is inclined along the cross section of the underground factory, specifically, it is arranged using a 5% bidirectional slope construction process, the waterproof ceiling keel 41 is inclined along the cross section of the underground factory, wherein ... The left and right ends of the main keel 41 of the waterproof ceiling are connected to the main structure 1 of the arched ceiling through anchor plates 51 and fixed by multiple long bolts 52. The anchor plates 51 are 300×350×10 steel anchor plates, and the long bolts 52 are 300mm long four-corner M16 chemical bolts. The main keel 41 of the waterproof ceiling is provided with a drainage part 61 for drainage. The lower end of the drainage part 61 is connected to a drainage pipe 62. The secondary keel 42 of the waterproof ceiling is perpendicularly connected to the main keel 41 of the waterproof ceiling. The waterproof ceiling panel 7 is fixedly installed on the upper end of the main keel 41 and the secondary keel 42 of the waterproof ceiling.

[0032] This invention, on the one hand, utilizes the existing anchor rod to set a first hanger rod below it, and then sets a planar frame structure below it consisting of a waterproof ceiling main keel, a waterproof ceiling secondary keel, and a waterproof ceiling panel, which does not occupy too much excavation space for underground factory caverns, and facilitates the construction of ventilation ducts; on the other hand, by setting a drainage section for drainage in the waterproof ceiling main keel and connecting a drainage pipe at its lower end, drainage is ensured. In addition, the left and right ends of the waterproof ceiling main keel are connected to the main arch structure through anchor plates, ensuring the structural strength of the planar frame structure.

[0033] In this embodiment, as Figure 1 As shown, the surface of the main arch structure 1 facing the first hanger 3 is provided with a mesh and shotcrete 11, which provides good support.

[0034] In this embodiment, as Figure 5 and 6 As shown, a first angle steel structure 72 for supporting the waterproof ceiling panel 7 is set in the center of the main keel 41 of the waterproof ceiling. The waterproof ceiling panel 7 is a 1.5mm thick steel plate. Multiple first angle steel structures 72 are arranged alternately on both sides, and the first angle steel structures 72 are parallel to the main keel 41 or the secondary keel 42 of the waterproof ceiling. Figure 5 This is a diagram showing the arrangement of the main and secondary keel of a waterproof ceiling with decorative features, as per this utility model. In this arrangement, the first angle steel structure 72 is set parallel to the main keel 41 of the waterproof ceiling. The spacing between the main keels 41 is 3m, the spacing between the secondary keels 5 is 1m, and the spacing between the first angle steel structures 72 is 0.3m. Figure 6This is a layout diagram of the main and secondary keel of a waterproof ceiling without decoration. The spacing of the main keel 41 in both directions is 3m, the spacing of the secondary keel 42 in both directions is 1m, and the spacing of the first angle steel structure 72 is 0.3m.

[0035] In this embodiment, as Figure 4 As shown, the drainage section 61 includes a second angle steel structure 611, a U-shaped drainage ditch 612, and a finishing channel steel 613. The second angle steel structure 611 has a size of L50×4, and the finishing channel steel 613 has a size of 16#. The U-shaped drainage ditch 612 is connected to the main keel of the waterproof ceiling 41 by overlapping. The U-shaped drainage ditch 612 is made of 1mm thick stainless steel and overlaps across the main keel of the waterproof ceiling 41, connected by full welding. The finishing channel steel 613 is located on the side of the U-shaped drainage ditch 612 away from the anchor plate 51. Three pieces of the second angle steel structure 611 are located at the angle between the U-shaped drainage ditch 612 and the main keel of the waterproof ceiling 41. The second angle steel structure 611 is used to connect the U-shaped drainage ditch 612 and the main keel of the waterproof ceiling 41. The bottom end of the U-shaped drainage ditch 612 is connected to the lower drainage pipe 62.

[0036] In this embodiment, as Figure 1 As shown, a waterproof membrane 71 is provided on the top of the waterproof ceiling panel 7. The waterproof membrane 71 is a 3mm thick self-adhesive modified bitumen waterproof membrane.

[0037] In this embodiment, as Figure 1 As shown, multiple air ducts 81 are installed between the main arch structure 1 and the main waterproof ceiling keel 41. The lower end of each air duct 81 is provided with an air outlet 82. The ventilation duct is easy to construct.

[0038] In this embodiment, as Figure 1 As shown, the lower end of the secondary keel 42 of the waterproof ceiling is connected to the decorative ceiling 92 via the second hanger 91. A decorative moisture-proof wall can also be added. The construction process of the decorative ceiling 92 is as follows: 1. φ10 bolted hangers, 1000mm spacing in both directions; 2. UC60 ceiling light steel main keel, 1000mm spacing; 3. Ceiling matching LA aluminum alloy secondary keel, 1000mm spacing; 4. 1.4mm thick, 300mm wide strip aluminum alloy plate. In addition, after the construction personnel enter the ceiling structure, they should step on the main keel and hold the hanger rods when moving. When entering the standing position, the safety belt should be fastened to the hanger rod. Stepping on the decorative panels is strictly prohibited. When there is a lot of walking work, scaffold boards must be laid on the keel. When walking or standing, personnel should not be concentrated and should stand and work separately.

[0039] In this embodiment, as Figure 1 , 5As shown in Figure 6, both the main keel 41 and the secondary keel 42 of the waterproof ceiling are channel steel. The size of the main keel 41 is larger than that of the secondary keel 42. The main keel 41 is made of 10# channel steel, and the secondary keel 42 is made of 16# channel steel.

[0040] In this embodiment, as Figure 2 As shown, the upper end of the first hanger 3 is provided with a bending part 31. The bending part 31 and the bottom end of the anchor part 2 are connected by lap welding, specifically by full welding process. The concrete sprayed anchor surface of the anchor part 2, the first hanger 3 and the 300mm range on the side of the anchor part 2 is coated with a penetrating membrane waterproof coating.

[0041] In this embodiment, the stainless steel components are made of 304 stainless steel and welded using argon arc welding. The stainless steel plates for the drainage ditch are lap-welded, and all weld seams are fully welded, with the weld points polished. For non-stainless steel components, the material and welding requirements are as follows: Q235 steel is used, E43 type welding rods are employed, all weld seams are fully welded, and the weld points are polished. Rust prevention is achieved through rust removal followed by hot-dip galvanizing for corrosion protection.

[0042] The above-described utility model only illustrates the implementation methods of the present utility model and should not be construed as limiting the scope of the utility model patent, nor is it a limitation on the structure of the present utility model embodiments in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present utility model embodiments, and these all fall within the protection scope of the present utility model embodiments.

Claims

1. A lightweight waterproof ceiling structure for an arched underground factory, characterized in that, include: Anchor bolt (2) is embedded in the main structure (1) of the arch; The first hanger (3) is connected to the anchor rod (2) and the waterproof ceiling main keel (41) at its upper and lower ends respectively; The waterproof ceiling main keel (41) is inclined along the cross section of the underground factory building. The left and right ends of the waterproof ceiling main keel (41) are connected to the main structure of the arch (1) through anchor plates (51). The waterproof ceiling main keel (41) is provided with a drainage part (61) for drainage. The lower end of the drainage part (61) is connected to a drainage pipe (62). The secondary keel (42) of the waterproof ceiling is perpendicularly connected to the main keel (41) of the waterproof ceiling. The waterproof ceiling panel (7) is fixedly installed at the upper end of the main keel (41) and the secondary keel (42) of the waterproof ceiling.

2. The lightweight waterproof ceiling structure for an arched underground factory building according to claim 1, characterized in that: The surface of the main arch structure (1) facing the first hanger (3) is covered with a mesh and shotcrete (11).

3. The lightweight waterproof ceiling structure for an arched underground factory building according to claim 1, characterized in that: The waterproof ceiling main keel (41) is provided with a first angle steel structure (72) for supporting the waterproof ceiling panel (7) in the middle. Multiple first angle steel structures (72) are arranged alternately on both sides. The first angle steel structures (72) are arranged parallel to the waterproof ceiling main keel (41) or the waterproof ceiling secondary keel (42).

4. The lightweight waterproof ceiling structure for an arched underground factory building according to claim 1, characterized in that: The drainage section (61) includes a second angle steel structure (611), a U-shaped drainage ditch (612), and a finishing channel steel (613). The U-shaped drainage ditch (612) is connected to the main keel of the waterproof ceiling (41) by overlapping. The finishing channel steel (613) is located on the side of the U-shaped drainage ditch (612) away from the anchor plate (51). The second angle steel structure (611) is located at the angle between the U-shaped drainage ditch (612) and the main keel of the waterproof ceiling (41). The second angle steel structure (611) is used to connect the U-shaped drainage ditch (612) and the main keel of the waterproof ceiling (41). The bottom end of the U-shaped drainage ditch (612) is connected to the drain pipe (62) at the lower end.

5. The lightweight waterproof ceiling structure for an arched underground factory building according to claim 1, characterized in that: The top of the waterproof ceiling panel (7) is provided with a waterproof membrane (71).

6. The lightweight waterproof ceiling structure for an arched underground factory building according to claim 1, characterized in that: Multiple air ducts (81) are provided between the main arch structure (1) and the main waterproof ceiling keel (41), and an air outlet (82) is provided at the lower end of the air duct (81).

7. The lightweight waterproof ceiling structure for an arched underground factory building according to claim 1, characterized in that: The lower end of the waterproof ceiling secondary keel (42) is connected to the decorative ceiling (92) via the second hanger (91).

8. The lightweight waterproof ceiling structure for an arched underground factory building according to claim 1, characterized in that: Both the main keel (41) and the secondary keel (42) of the waterproof ceiling are channel steel, and the size of the main keel (41) is larger than the size of the secondary keel (42).

9. The lightweight waterproof ceiling structure for an arched underground factory building according to claim 1, characterized in that: The upper end of the first rod (3) is provided with a bent part (31), and the bent part (31) and the bottom end of the anchor rod part (2) are connected by lap welding.

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