Hoist machine room floor structure

Abstract

The invention discloses a hoist machine room floor slab structure, relates to the field of water conservancy projects, and aims to improve the bearing capacity of a floor slab to water flow impact and enhance the waterproof capacity of the floor slab. According to the technical scheme, the hoist machine room floor structure comprises floor blocks which are continuously arranged in the arch axis direction of an arch dam, the floor blocks are made of reinforced concrete and are of a thick plate structure, and the bearing capacity of the floor blocks to water flow impact is improved; a first joint is arranged between every two adjacent floor blocks, a waterstop is arranged in each first joint, a boss protruding upwards is arranged on the top face of each floor block along the corresponding first joint, an inner waterproof layer is arranged on the surface of each boss, outer waterproof layers are laid on the top faces of the floor blocks and the outer sides of the inner waterproof layers, and groove covers are further fixedly arranged on the portions, on the two sides of each first joint, of the boss. The dam body on the upstream side of the floor block is provided with a connecting groove, and the floor block is arranged in the connecting groove and flexibly connected with the dam body on the upstream side. The bearing capacity and the waterproof capacity of the hoist machine room floor to water flow impact are enhanced.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering, and more particularly to the joints or seals of hydraulic structures, specifically a floor structure for a gate hoist room. Background Technology

[0002] High concrete arch dams typically control flood discharge through orifices located within the dam body. Depending on the orifice height, arch dams often have surface spillways and deep spillways, and some also have bottom spillways. The surface spillways and deep spillways are arranged vertically. When controlling flood discharge through the surface spillways, the discharge flow is small when the gate opening is low. In this case, some water flow may not have enough impact distance and may fall onto the floor of the hoist room of the lower deep spillway, affecting the floor's safety.

[0003] Currently, in order to cope with the impact of the water flow above on the floor of the hoist room, the conventional treatment is to add a waterproof layer on the top of the floor. This treatment can prevent moisture to a certain extent, but the waterproof effect is poor and the resistance to water flow impact is weak. The continuous and large impact of the water flow will still damage the floor. As a result, some hoist room floors with deep flood discharge holes have developed local cracks. Summary of the Invention

[0004] This invention provides a floor structure for a gate hoist room, which aims to improve the floor's resistance to water flow impact and enhance its waterproofing capabilities.

[0005] The technical solution adopted in this invention is as follows: a floor structure for the hoist room, comprising floor slabs continuously arranged along the arch axis of the arch dam. The floor slabs are made of reinforced concrete and use a thick plate structure. There is a first joint between two adjacent floor slabs. At least one waterstop is provided in the first joint. The top surface of the floor slab has an upwardly protruding boss along the first joint. The bosses on both sides of the first joint have the same height. The surface of the bosses on both sides of the first joint is provided with an inner waterproof layer. An outer waterproof layer is laid on the top surface of the floor slab and the outside of the inner waterproof layer. A groove cover is also fixed on the bosses on both sides of the first joint. The groove cover is located outside the outer waterproof layer. The groove cover is [shaped] in cross-section. The inner width of the groove cover is equal to the sum of the widths of the two bosses on both sides of the first joint.

[0006] The floor slabs are made of reinforced concrete and use a thick slab structure. The floor slabs should not be cast integrally with the dam body on the upstream side. In order to achieve a flexible connection between the floor slabs and the dam body on the upstream side, the dam body on the upstream side of the floor slabs is provided with a connecting groove, the upstream side of the floor slabs is placed in the connecting groove, and the inserted reinforcing bars of the floor slabs are inserted into the dam body on the upstream side. At least one waterstop is provided in the second joint between the floor slabs and the dam body on the upstream side.

[0007] To further enhance the waterproofing of the second joint between the building slab and the upstream dam body, a sealing filler is installed at the second joint. This sealing filler serves to seal the second joint. For example, the sealing filler can be polyurethane.

[0008] To further improve the waterproofing effect of the sealing filler, the following measures are taken: retaining sills are set on the top surface of the floor slab near the second joint and on the dam body upstream of the floor slab near the second joint. The two retaining sills, the floor slab and the dam body upstream of the floor slab form a sealing groove, which is filled with sealing filler.

[0009] To facilitate the installation of retaining walls on the building slab and the dam body upstream of it, specifically: the retaining walls are concrete structures.

[0010] To further enhance the waterproofing effect at the first joint between two adjacent building slabs, a sealing rod is installed between the trench cover and the outer waterproof layer, between the outer and inner waterproof layer, or between the inner waterproof layer and the protrusion. The centerline of the sealing rod is located on the vertical plane corresponding to the first joint. Specifically, the sealing rod is made of polyethylene foam.

[0011] To ensure the strength of the trench cover and to guarantee its effectiveness in securing the inner and outer waterproof layers, specifically: the trench cover is made of metal, such as channel steel.

[0012] The beneficial effects of this invention are as follows: the floor slabs are made of reinforced concrete and employ a thick slab structure, with a thickness of 80cm to 120cm, which improves the floor slabs' resistance to water flow impact. Due to the large thickness of the floor slabs, water-stopping devices are installed in the joints between the slabs. Protrusions are provided on both sides of the first joint, with an inner and outer waterproof layer at the protrusions. The outer waterproof layer is simultaneously laid on the entire top surface of the floor slab, further enhancing the waterproofing effect. The inner and outer waterproof layers are fixed by groove covers, improving their fixation and protection. This invention enhances the waterproofing capability of the hoist room floor slab, completely preventing water from entering the hoist room through the first joint.

[0013] The dam body upstream of the floor slab is equipped with a connecting groove, and the upstream side of the floor slab is placed in the connecting groove. The floor slab is flexibly connected to the upstream side of the dam body, allowing slight deformation under the impact of water flow, which well adapts to the vibration brought by the water flow. The water-stop and sealing filler at the second joint can prevent water from entering the hoist room through the second joint. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a planar structure according to an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram showing the connection between the building section and the dam body on the upstream side in this invention.

[0016] Figure 3 This is a schematic diagram of the connection between two adjacent building panels in this invention.

[0017] Attached reference numerals: 1. Floor panel, 1a. Plug, 1b. First joint, 2. Waterstop, 3. Inner waterproof layer, 4. Outer waterproof layer, 5. Trench cover, 6. Dam body on the upstream side, 7. Second joint, 8. Sealing filler, 9. Retaining sill, 10. Sealing rod, 11. Detailed Implementation

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] like Figure 1 As shown, the hoist room floor structure of this invention includes floor slabs 1 continuously arranged along the arch axis of the arch dam. These floor slabs 1 are sequentially spliced ​​together to form a complete floor slab for the hoist room. The upstream side of each floor slab 1 is connected to the upstream side of the dam body 7, and the downstream side of each floor slab 1 is connected to the upstream side of the dam body. The floor slabs 1 are made of reinforced concrete and employ a thick slab structure, which improves their resistance to water flow impact. The thickness of the floor slabs 1 is 80cm to 120cm, for example, 100cm.

[0020] The floor slab 1 corresponds to a horizontal plane, and the first joint 2 is located between two adjacent floor slabs 1. The plane corresponding to the first joint 2 is vertical. At least one water-stop 3 is installed within the first joint 2, with both ends of the water-stop 3 embedded in the reinforced concrete on both sides of the first joint 2. The water-stop 3 seals the first joint 2, typically using a copper sheet. When only one water-stop 3 is installed in the first joint 2, the water-stop 3 is generally located at the middle of the floor slab 1 along the vertical direction, that is, at the middle of the floor slab 1 along its thickness direction. Figure 3 As shown, the top surface of the floor slab 1 has an upward protruding boss 1a along the first joint 2. The boss 1a has a rectangular cross-section. The bosses 1a on both sides of the first joint 2 have the same height. After the two floor slabs 1 are spliced ​​together, the two bosses 1a treated by the first joint 2 still have a rectangular cross-section.

[0021] An inner waterproof layer 4 is provided on the surface of the protrusions 1a on both sides of the first joint 2. The inner waterproof layer 4 can be formed by spraying or laying. The inner waterproof layer 4 serves to seal the first joint 2. For example, the inner waterproof layer 4 can be a waterproof membrane or waterproof coating. To ensure the adhesion of the inner waterproof layer 4, sealant can be applied to the surface of the protrusions 1a before the inner waterproof layer 4 is applied. The inner waterproof layer 4 is also partially provided on the top surface of the floor slab 1. For example, the width of the inner waterproof layer 4 on the top surface of the floor slab 1 is not less than 25cm. An outer waterproof layer 5 is laid on the top surface of the floor slab 1 and the outer side of the inner waterproof layer 4. The outer waterproof layer 5 is laid on the entire top surface of the floor slab 1 and the outer side of the inner waterproof layer 4, further serving as a waterproof barrier. For example, the outer waterproof layer 5 can be a waterproof membrane. The inner waterproof layer 4 and the outer waterproof layer 5 together prevent moisture from seeping into the first joint 2 and then into the hoist room.

[0022] A groove cover 6 is fixedly installed on the protrusions 1a on both sides of the first joint 2. The groove cover 6 is located on the outside of the outer waterproof layer 5. The groove cover 6 serves to fix the inner waterproof layer 4 and the outer waterproof layer at the first joint 2, and at the same time prevents water flow from directly impacting the inner waterproof layer 4 and the outer waterproof layer 5 at the first joint 2, because the inner waterproof layer 4 and the outer waterproof layer 5 are easily torn at the first joint 2. In order to ensure the strength of the groove cover 6 and ensure its fixing effect on the inner waterproof layer 4 and the outer waterproof layer 5, the groove cover 6 is generally made of metal, such as channel steel, and is welded and fixed to the connecting rib embedded in the protrusion 1a. The groove cover 6 is preferably made of rust-resistant material or has been rust-proofed to ensure its durability. The groove cover 6 is [shaped] in cross-section, and the inner width of the groove cover 6 is equal to the sum of the widths of the two protrusions 1a on both sides of the first joint 2. Figure 3 As shown.

[0023] To improve the waterproofing effect of two adjacent floor slabs 1 at the first joint 2, a sealing rod 11 is provided between the groove cover 6 and the outer waterproof layer 5, between the outer waterproof layer 5 and the inner waterproof layer 4, or between the inner waterproof layer 4 and the protrusion 1a. The centerline of the sealing rod 11 is located on the vertical plane corresponding to the first joint 2. The sealing rod 11 is made of an elastic material, such as polyethylene foam. After the sealing rod 11 is installed, it can increase the allowable deformation of the inner waterproof layer 4 and the outer waterproof layer 5 at the first joint 2, and the sealing rod 11 itself can also play a waterproofing role.

[0024] Floor slab 1 is made of reinforced concrete and uses a thick slab structure. Floor slab 1 should not be cast integrally with the dam body 7 on its upstream side to avoid a rigid connection between floor slab 1 and the dam body 7 on its upstream side. Ideally, floor slab 1 and the dam body 7 on its upstream side should have a flexible connection. For example... Figure 2As shown, the dam body 7 on the upstream side of floor slab 1 is provided with a connecting groove. The upstream side of floor slab 1 is placed in the connecting groove. The overlap length of floor slab 1 in the connecting groove is greater than the maximum allowable deformation of floor slab 1 and meets the safety requirements of the structural stress of both. The inserted reinforcing bar 1b of floor slab 1 is inserted into the dam body 7 on its upstream side, forming a second joint 8 between floor slab 1 and the dam body 7 on its upstream side. At least one waterstop 3 is provided in the second joint 8. The waterstop 3 is located in the connecting groove, and its two ends are respectively embedded in floor slab 1 and the dam body 7 on its upstream side. The waterstop 3 is generally made of copper sheet.

[0025] To improve the waterproofing effect of the second joint 8 between the floor slab 1 and the upstream dam body 7, a sealing filler 9 is also installed at the second joint 8. The sealing filler 9 is located on the top surface of the floor slab 1 and the downstream surface of the upstream dam body 7, and serves to seal the second joint 8. For example, the sealing filler 9 is made of polyurethane. To ensure the construction quality of the sealing filler 9 and improve its waterproofing effect, such as... Figure 2 As shown, retaining sills 10 are respectively installed on the top surface of floor slab 1 near the second joint 8 and on the upstream side of the dam 7 near the second joint 8. The two retaining sills 10, floor slab 1, and the upstream side of the dam 7 form a sealing groove, which is filled with sealing filler 9. The sealing groove has an opening to facilitate the construction of the sealing filler 9. The retaining sills 10 are fixedly installed on floor slab 1 and the upstream side of the dam 7. To facilitate the placement of retaining sills 10 on floor slab 1 and the upstream side of the dam 7, the retaining sills 10 are made of concrete. The retaining sills 10 can generally be made of reinforced concrete and are cast integrally with floor slab 1 or the upstream side of the dam 7.

Claims

1. A floor structure of an operating and closing machine room, comprising floor blocks (1) arranged continuously along the direction of the arch axis of the arch dam, characterized in that: The floor block (1) is made of reinforced concrete and adopts a thick plate structure. A first joint (2) is arranged between two adjacent floor blocks (1). At least one water stop (3) is arranged in the first joint (2). The top surface of the floor block (1) is provided with a boss (1a) protruding upward along the first joint (2). The heights of the bosses (1a) on both sides of the first joint (2) are equal. The surfaces of the bosses (1a) on both sides of the first joint (2) are provided with an inner waterproof layer (4). An outer waterproof layer (5) is arranged on the top surface of the floor block (1) and the outer side of the inner waterproof layer (4). A groove cover (6) is further arranged on the bosses (1a) on both sides of the first joint (2). The groove cover (6) is located on the outer side of the outer waterproof layer (5). The groove cover (6) is in a [shape in its cross section. The inner width of the groove cover (6) is equal to the sum of the widths of the two bosses (1a) on both sides of the first joint (2).

2. The hoist machine room floor structure of claim 1, wherein: The dam body (7) on the upstream side of the floor block (1) is provided with a connecting groove. The upstream side of the floor block (1) is arranged in the connecting groove. The plug-in steel bars (1b) of the floor block (1) are plugged into the dam body (7) on the upstream side thereof. At least one water stop (3) is arranged in the second joint (8) between the floor block (1) and the dam body (7) on the upstream side thereof.

3. The hoist machine room floor structure of claim 2, wherein: A sealing filler (9) is further arranged at the second joint (8).

4. The hoist machine room floor structure of claim 3, wherein: The sealing filler (9) is made of polyurethane.

5. The hoist machine room floor structure of claim 3, wherein: The top surface of the floor block (1) is provided with a barrier (10) near the second joint (8). The dam body (7) on the upstream side of the floor block (1) is also provided with a barrier (10) near the second joint (8). The two barriers (10), the floor block (1) and the dam body (7) on the upstream side thereof form a sealing groove. The sealing groove is filled with the sealing filler (9).

6. The hoist machine room floor structure of claim 5, wherein: The barriers (10) are made of concrete.

7. The opening and closing machine machine room floor structure according to any one of claims 1 to 6, characterized in that: A sealing rod (11) is further arranged between the groove cover (6) and the outer waterproof layer (5), between the outer waterproof layer (5) and the inner waterproof layer (4), or between the inner waterproof layer (4) and the boss (1a). The center line of the sealing rod (11) is located on the vertical plane corresponding to the first joint (2).

8. The hoist machine room floor structure of claim 7, wherein: The sealing rod (11) is made of polyethylene foam material.

9. The opening and closing machine machine room floor structure according to any one of claims 1 to 6, characterized in that: The groove cover (6) is a channel steel.

10. The opening and closing machine machine room floor structure according to any one of claims 1 to 6, characterized in that: The water stops (3) in the first joint (2) and the second joint (8) are both copper sheet water stops.

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