A partially hollowed through composite foundation mat apparatus and method

Abstract

The application discloses a kind of local hollow through laminated foundation floor device and method, it is related to building engineering field, including floor laminated layer, honeycomb local hollow layer and foundation waterproof floor, floor laminated layer inside has stress reinforcement;Honeycomb local hollow layer is arranged in floor laminated layer downside, for leakage water drainage;Foundation waterproof floor is arranged in honeycomb local hollow layer downside, L-shaped tieback reinforcement is implanted in the foundation waterproof floor, and L-shaped tieback reinforcement is stretched out from honeycomb local hollow layer to be connected with floor laminated layer.The application forms partial hollow and through drainage passage by honeycomb local hollow layer, and upper and lower layer board are fully connected to form a whole, both play the reinforcement effect to original foundation waterproof floor, and can organize leakage water drainage.

Description

Technical Field

[0001] This invention relates to the field of building engineering, and in particular to a partially hollow, through-type composite foundation slab device and method. Background Technology

[0002] Currently, the development and utilization of underground space is becoming increasingly widespread, with more and more underground buildings having multiple floors and deeper foundations. Taking underground parking garages as an example, they are a standard feature in both commercial and residential buildings. Consequently, due to the buoyancy of water, accidents involving underground parking garages rising to the surface occur frequently. This rising of underground parking garages is often accompanied by structural damage, waterproofing failure, and leakage, affecting structural safety and normal functionality.

[0003] When an underground parking garage floats, the buoyancy of the water often causes significant deformation and cracks in the foundation waterproof slab, damaging the underlying flexible waterproof layer and leading to leaks. Currently, reinforcement of the foundation waterproof slab mainly involves adding an overlay layer on top, increasing the thickness of the waterproof floor. While this method achieves reinforcement, it doesn't completely solve the leakage problem. Later leak repairs often fail to locate the original leak point, resulting in unsatisfactory treatment and water accumulation on the garage floor. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a partially hollow and interconnected composite foundation slab device and method. The honeycomb-shaped partially hollow layers form partially hollow and interconnected drainage channels, and the upper and lower layers are fully connected to form a whole. This not only strengthens the original waterproof foundation slab, but also allows for the organized drainage of leaking water.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] In a first aspect, embodiments of the present invention provide a partially hollow, through-type composite foundation slab device, comprising:

[0007] The bottom slab is a composite layer with reinforcing steel bars inside;

[0008] A honeycomb-shaped partial hollow layer is located on the underside of the composite layer of the base plate to drain leaking water;

[0009] A basic waterproof base plate is located on the underside of a honeycomb-shaped partial hollow layer. L-shaped tie bars are embedded in the basic waterproof base plate, and the L-shaped tie bars extend from the honeycomb-shaped partial hollow layer to connect with the overlapping layer of the base plate.

[0010] As a further implementation, the honeycomb-shaped partially hollow layer includes multiple plastic templates arranged in the horizontal and vertical directions, and the plastic templates are interconnected; a set gap area is formed between the plastic templates.

[0011] As a further implementation, the plastic template includes an integrally formed flat plate and pits, the pits being evenly distributed and the bottom of the pits being wrapped with geotextile.

[0012] As a further implementation, a seepage prevention device is also included, which is installed at the junction of the honeycomb-shaped partial hollow layer and the building.

[0013] As a further implementation, the seepage prevention device includes a plastic plate with several water-stop strips on the side of the plastic plate facing away from the building.

[0014] As a further implementation, the waterstop strip extends from one end of the plastic plate to the other end, and multiple waterstop strips are spaced apart along the height direction of the plastic plate.

[0015] As a further implementation, the plastic sheet is a straight sheet or an L-shaped sheet.

[0016] As a further implementation, the L-shaped tie bars are arranged in a quincunx pattern.

[0017] Secondly, embodiments of the present invention also provide a construction method for a partially hollow, through-type composite foundation slab device, comprising:

[0018] Plastic templates are laid on the upper side of the base waterproof slab to form a honeycomb-shaped local hollow layer;

[0019] The waterproof base plate under the gap area formed between the plastic templates is thoroughly roughened, and L-shaped tie bars are inserted at intervals.

[0020] A waterproofing device is installed at the junction of the plastic formwork and the building, and then the reinforcing steel bars are tied and the composite layer of the base slab is poured.

[0021] As a further implementation, the seepage prevention device is fixed to the building and the joint between the seepage prevention device and the building using waterproof adhesive.

[0022] The beneficial effects of this invention are as follows:

[0023] (1) The present invention is divided into three layers: the bottom plate composite layer, the honeycomb-shaped partially hollow layer and the basic waterproof bottom plate. The upper bottom plate composite layer reinforces the original bottom plate, and the middle honeycomb-shaped partially hollow through layer drains the seepage water, so that the device has a seepage prevention function while increasing the overall integrity.

[0024] (2) The honeycomb-shaped partial hollow layer of the present invention is made of multiple plastic templates spliced ​​together to form a gap area. The base waterproof slab is implanted with L-shaped tie bars. The L-shaped tie bars pass through the gap area and connect with the base slab overlay layer, thereby effectively connecting the upper and lower slabs into one, which plays the role of reinforcing the original base slab.

[0025] (3) The present invention also provides a seepage prevention device, which includes a plastic plate and a water-stop strip set on the surface of the plastic plate. The plastic plate is glued with waterproof adhesive at the joint, which achieves a good seepage prevention effect and prevents water from seeping out from the column base, wall base and other parts. Attached Figure Description

[0026] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0027] Figure 1 This is a structural schematic diagram of the present invention according to one or more embodiments;

[0028] Figure 2 This is a schematic diagram of a honeycomb-shaped partially hollow layer structure according to one or more embodiments of the present invention;

[0029] Figure 3 This is a schematic diagram of an anti-seepage device according to one or more embodiments of the present invention. Figure 1 ;

[0030] Figure 4 This is a schematic diagram of an anti-seepage device according to one or more embodiments of the present invention. Figure 2 ;

[0031] Figure 5 This is a schematic diagram of an anti-seepage device according to one or more embodiments of the present invention. Figure 3 .

[0032] The components include: 1. Basic waterproof slab; 2. Honeycomb-shaped partial hollow layer; 3. L-shaped tie bars; 4. Reinforcing steel bars; 5. Composite layer of slab; 6. Plastic sheet; 7. Waterstop strip; 8. Void area.

[0033] 201. Flat plate; 202. Pit; 203. Geotextile. Detailed Implementation

[0034] Example 1:

[0035] To address the problem of deformation of the foundation waterproofing slab due to leakage, this embodiment provides a partially hollow, interconnected composite foundation slab device. By setting a honeycomb-shaped partially hollow layer and the foundation waterproofing slab on the upper part of the foundation waterproofing slab, it not only reinforces the original foundation waterproofing slab but also allows for the organized drainage of leaking water.

[0036] Specifically, such as Figure 1As shown, the composite foundation slab device includes a waterproof foundation slab 1, a honeycomb-shaped partially hollow layer 2, and a composite slab layer 5 arranged sequentially from bottom to top. The honeycomb-shaped partially hollow layer 2 is formed by plastic templates arranged in the horizontal and vertical directions, that is, arranged in both directions, and the plastic templates are interconnected.

[0037] Figure 1 The specific laying method of the plastic template is shown. Multiple plastic templates are spliced ​​together in sequence, and some areas are not laid with plastic templates to form several gap areas 8, so that the entire honeycomb-shaped local hollow layer 2 forms a grid structure.

[0038] like Figure 2 As shown, the main body of the plastic template is a flat plate 201, on which multiple pits 202 are evenly distributed to form a honeycomb-like shape. The pits 202 are formed by hollow round tubes and are integrally formed with the flat plate 201. Geotextile 203 is wrapped around the outside of the pits 202.

[0039] In this embodiment, the thickness of the plate 201 is 2mm; the inner diameter of the pit 202 is 50mm, the height is 50mm, and the center-to-center distance is 100mm.

[0040] The bottom slab composite layer 5 is located at the top layer, and it has reinforcing steel bars 4 inside. The reinforcing steel bars 4 are arranged in the horizontal and vertical directions to form a mesh structure. The plane formed by the reinforcing steel bars 4 is parallel to the plane of the honeycomb-shaped partial hollow layer 2, and there is a certain distance between the two.

[0041] In this embodiment, the bottom slab composite layer 5 is made of impermeable fine stone concrete with a strength level one grade higher than that of the foundation waterproof slab 1, for example, P6 impermeable fine stone concrete is used; the diameter of the reinforcing steel bar 4 is 16mm and the spacing between adjacent reinforcing steel bars 4 is 200mm.

[0042] The base waterproof slab 1 is roughened at the location corresponding to the void area 8, with a roughening depth of not less than 6mm, and then rinsed clean with pressurized water. L-shaped tie bars 3 are inserted at intervals on the base waterproof slab 1. The L-shaped tie bars 3 pass through the void area 8 and are connected to the overlapping layer 5 of the base slab, so that the upper and lower layers of the honeycomb-shaped local hollow layer 2 are effectively connected, increasing the overall integrity.

[0043] In this embodiment, the L-shaped tie bars 3 are arranged in a quincunx pattern, and steel bars with a diameter of 12mm are selected. The spacing between adjacent L-shaped tie bars 3 is 300mm, and the implantation depth is not less than 200mm, so as to meet the connection requirements of the upper and lower layers.

[0044] Understandably, in other embodiments, the diameter, spacing, and implantation depth of the L-shaped tie bar 3 can be set to other values ​​according to the construction site.

[0045] like Figure 1As shown, multiple L-shaped tie bars 3 are provided in each gap area 8. The hook part of the L-shaped tie bar 3 passes through the stressed steel bar 4 to enhance the bonding performance with the bottom plate composite layer 5.

[0046] This embodiment also includes a seepage prevention device, which is installed at the junction of the honeycomb-shaped partial hollow layer 2 and the building; the building here refers to a wall or column, and the shape of the seepage prevention device is adaptively adjusted according to different parts of the wall and column. For example, if the wall has a vertical surface and corners, and the corners are divided into positive corners and negative corners, then for the vertical surface, the seepage prevention device should have a plane that fits against the vertical surface; for the corner, it should have an L-shaped contact surface that adapts to the corner.

[0047] The seepage prevention device includes a plastic board 6 and several waterstop strips 7 on the surface of the plastic board 6; the plastic board 6 is tightly pasted to the column and wall with waterproof adhesive, and the joints of the plastic board 6 are tightly pasted with waterproof adhesive.

[0048] Specifically, when the corner is an outside corner, such as Figure 3 As shown, the plastic panel 6 is an L-shaped panel. Multiple waterstop strips 7 are provided on the outer side of the plastic panel 6 (the side opposite to the column or wall). The waterstop strips 7 are arranged horizontally, that is, they extend from one end of the plastic panel 6 to the other end. The shape of the waterstop strips 7 is also L-shaped. In addition, multiple waterstop strips 7 are distributed at intervals along the height direction of the plastic panel 6 to achieve the effect of preventing leakage.

[0049] When the corner is an inside corner, such as Figure 4 As shown, the plastic sheet 6 is an L-shaped sheet, but its orientation is opposite to that of the aforementioned external corner. For vertical surfaces, the plastic sheet 6 can be set as a straight sheet, for example, a rectangular sheet, with the waterstop strips 7 distributed in a straight line on the surface of the plastic sheet 6.

[0050] This embodiment consists of three layers: upper, middle, and lower. A honeycomb-shaped partially hollow layer 2, arranged in both directions, creates a partially hollow and interconnected drainage channel between the upper and lower layers. After the foundation waterproof slab 1 is fully roughened, L-shaped tie bars connect the upper and lower layers to form a whole, which not only reinforces the original foundation waterproof slab 1 but also allows for the organized drainage of leaking water. Anti-seepage devices are installed at the columns and walls to effectively prevent leaking water from seeping out from the joints between the newly added upper slab composite layer 5 and the columns and walls.

[0051] Example 2:

[0052] This embodiment provides a construction method for a partially hollow, through-type composite foundation slab device, using the composite foundation slab device described in Embodiment 1, and includes the following steps:

[0053] First, lay plastic templates at certain intervals, and seal the joints tightly with waterproof adhesive. When encountering columns or walls, install anti-seepage devices around the columns and at the base of the walls. Then, attach the plastic panels 6 of the anti-seepage devices to the columns or walls with waterproof adhesive, and seal the joints of the plastic panels tightly with waterproof adhesive.

[0054] The foundation waterproof base plate 1 in the gap area 8 formed by the plastic template is thoroughly roughened, and L-shaped tie bars 3 are inserted at intervals.

[0055] Install and tie the upper layer of reinforcing steel bars 4, and pour the bottom slab composite layer 5, wherein the concrete is fine stone concrete and is fully vibrated.

[0056] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A construction method for a partially hollow, through-type composite foundation slab device, characterized in that, The partially hollow, through-type composite foundation slab device includes: The bottom slab is a composite layer with reinforcing steel bars inside; A honeycomb-shaped partial hollow layer is located on the underside of the composite layer of the base plate to drain leaking water; The honeycomb-shaped partially hollow layer includes multiple plastic templates arranged in the horizontal and vertical directions, and the plastic templates are interconnected; a set gap area is formed between the plastic templates; A basic waterproof base plate is provided on the lower side of the honeycomb-shaped partial hollow layer. L-shaped tie bars are embedded in the basic waterproof base plate, and the L-shaped tie bars extend from the honeycomb-shaped partial hollow layer to connect with the base plate composite layer. It also includes a seepage prevention device, which is installed at the junction of the honeycomb-shaped partial hollow layer and the building; Construction methods include: Plastic templates are laid on the upper side of the base waterproof slab to form a honeycomb-shaped local hollow layer; The waterproof base plate under the gap area formed between the plastic templates is thoroughly roughened, and L-shaped tie bars are inserted at intervals; A waterproofing device is installed at the junction of the plastic formwork and the building, and then the reinforcing steel bars are tied and the composite layer of the base slab is poured.

2. The construction method of a partially hollow, through-type composite foundation slab device according to claim 1, characterized in that, The plastic template includes an integrally formed flat plate and pits, the pits being evenly distributed and the bottom of the pits being wrapped with geotextile.

3. The construction method of a partially hollow, through-type composite foundation slab device according to claim 1, characterized in that, The seepage prevention device includes a plastic plate, and the side of the plastic plate opposite to the building is provided with several water-stop strips.

4. The construction method of a partially hollow, through-type composite foundation slab device according to claim 3, characterized in that, The waterstop strip extends from one end of the plastic plate to the other end, and multiple waterstop strips are spaced apart along the height direction of the plastic plate.

5. A construction method for a partially hollow, through-type composite foundation slab device according to claim 3 or 4, characterized in that, The plastic sheet is a straight sheet or an L-shaped sheet.

6. The construction method of a partially hollow, through-type composite foundation slab device according to claim 1, characterized in that, The L-shaped tie bars are arranged in a quincunx pattern.

7. The construction method of a partially hollow, through-type composite foundation slab device according to claim 1, characterized in that, The seepage prevention device is fixed to the building and the joint between the seepage prevention device and the building using waterproof adhesive.

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