A floor structure with waterproof and damping performance and a construction method thereof

Abstract

This invention relates to a base slab structure with both waterproof and vibration-damping properties and its construction method. The structure includes a precast base slab and a cast-in-place base slab. The precast base slab includes, from bottom to top, a cushion layer, a first waterproof layer, a structural layer, a vibration-damping layer, a second waterproof layer, a structural layer, and a perimeter vertically enclosing formwork. The cast-in-place base slab includes, from bottom to top, a cushion layer, a waterproof layer, a structural layer, and a vibration-damping filling layer. The cast-in-place base slab and the precast base slab are connected by the main reinforcement of the structural layer and concrete is poured to form a load-bearing whole. An adhesive layer and a finishing layer are integrally laid on the top surface of both the cast-in-place and precast base slabs. Construction method: After the precast base slab is positioned and installed, a cushion layer and a waterproof layer are laid in the area of ​​the cast-in-place base slab. The engineering piles, structural columns, and structural layer reinforcement are arranged and fixed, and connected to the pre-reserved main reinforcement of the precast base slab's structural layer. After pouring concrete to form a load-bearing whole structural layer, the vibration-damping filling layer is constructed. Finally, an adhesive layer and a finishing layer are fully laid on the top surface of the base slab.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to a base plate structure with both waterproof and vibration damping properties and its construction method. Background Technology

[0002] In the process of rapid urbanization, in order to alleviate the shortage of ground space, optimize the urban functional layout, and improve the efficiency of infrastructure, the construction scale of urban rail transit networks is expanding and maturing. However, with the increasing compactness of urban space and the continuous improvement of environmental requirements, the development and construction of underground space around rail transit is facing unprecedented challenges. Especially in core urban areas or under special geological conditions, the construction of adjacent tunnels not only needs to be fast and efficient to reduce the impact on the rail transit environment and residents' lives, but also must ensure the long-term safety and stability of the structure and the comfort of its use, which includes strict requirements for waterproofing and vibration reduction performance.

[0003] Currently, domestic engineering construction typically uses on-site cast-in-place concrete structures to construct foundation slabs. While traditional cast-in-place slabs have advantages in terms of integrity and operability, they also have the following drawbacks: cast-in-place slabs require on-site formwork erection, rebar tying, concrete pouring, and curing, resulting in a long construction cycle; complex and variable on-site conditions can lead to uneven concrete strength, cracking, leakage, and other problems if improper operation is not performed, making it difficult to guarantee construction quality; furthermore, conventional cast-in-place slabs do not consider vibration reduction and sound insulation design, and the density and rigidity of the concrete itself contribute to vibration transmission rather than absorption.

[0004] In view of this, given the high standards required for rapid construction, waterproofing, safety, and vibration control in engineering construction around rail transit, researching a new type of base plate structure and its construction method that can be constructed quickly and efficiently while also possessing waterproofing and vibration reduction properties is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In order to overcome the problems and defects existing in the prior art, the present invention aims to provide a base plate structure and its construction method that have both waterproof and vibration reduction properties. It strives to achieve the integration of structural stress, base plate waterproofing and building vibration reduction performance while ensuring high-quality and rapid construction of the foundation plate, and has excellent economic, environmental and social benefits.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] A base slab structure combining waterproofing and vibration damping properties includes a precast base slab structure and a cast-in-place base slab structure. The precast base slab structure comprises, from bottom to top, a precast base slab cushion layer, a first waterproof layer, a precast base slab structural layer, a precast base slab vibration damping layer, a second waterproof layer, a precast base slab structural layer, and a perimeter vertically enclosing end formwork. The precast base slab structure is positioned between engineering piles and structural columns, avoiding their arrangement. The cast-in-place base slab structure comprises, from bottom to top, a cast-in-place base slab cushion layer, a cast-in-place base slab waterproof layer, a cast-in-place base slab vibration damping layer, a second waterproof layer, a precast base slab structural layer, and a perimeter vertically enclosing end formwork. The system comprises a water layer, a cast-in-place base slab structural layer, and a cast-in-place base slab vibration damping filling layer. The cast-in-place base slab structure is positioned between the precast base slab structures, covering the area above the engineering piles and below the structural columns. Through the stress connection between the main reinforcement of the cast-in-place base slab structural layer and the reserved main reinforcement of the precast base slab structural layer, as well as the anchoring and fixing of the longitudinal reinforcement of the engineering piles and the main reinforcement of the structural columns, and the integral pouring of concrete, the precast base slab structure, the engineering piles, and the structural columns are integrated. An adhesive layer and a finishing layer are laid from bottom to top on the top surface of the cast-in-place base slab vibration damping filling layer and the precast base slab structural layer.

[0008] Furthermore, the first waterproof layer of the precast base slab structure is made of waterproof membrane laid loosely on the pad layer and extends upward to the top surface of the structural layer to form a closed edge. The second waterproof layer of the precast base slab structure is made of waterproof coating attached to the vibration damping layer and extends upward to the top surface of the structural layer to form a closed edge.

[0009] Furthermore, the precast base plate vibration damping layer includes a vibration damping pad that is horizontally laid on the precast base plate structural layer and a perimeter vibration damping pad that is vertically laid close to the inner side of the end cap template. The perimeter vibration damping pad extends to the top of the vibration damping pad at the corner, and the two overlap each other to form vibration isolation.

[0010] Furthermore, the end cap template of the precast base plate structure is arranged vertically along the perimeter of the precast base plate to enclose and seal the precast base plate cushion layer to the structural layer, and through holes are set at the reserved positions of the main reinforcement in the precast base plate structural layer. The height of the end cap template is the same as the thickness of the precast base plate.

[0011] Furthermore, the head template of the precast base plate structure has an outwardly extending cutting edge at the corner position. The length of the outwardly extending cutting edge is L / 5 to L / 3, where L is the side length of the head template and the width is 50 to 500 mm.

[0012] Furthermore, the outer side of the end cap template of the precast base plate structure is pre-set with a perimeter waterstop steel plate and a rubber waterstop strip on the precast base plate structure layer and the construction layer, respectively.

[0013] Furthermore, the precast main reinforcement bars in the precast base slab structural layer are the main load-bearing reinforcement bars of the structural layer, which are the outward extensions of the main reinforcement bars of the precast base slab structural layer through the end cap template, and the outward extension length outside the end cap template is greater than or equal to 35d.

[0014] Furthermore, the vibration damping filling layer of the cast-in-place base slab is made by densely filling the top surface of the cast-in-place base slab structural layer with a certain strength of sound-absorbing and vibration-damping material or filling it to the side of the structural column, and is flush with the top surface of the precast base slab structural layer.

[0015] Furthermore, the sound-absorbing and vibration-damping material must meet the strength requirement that the average slope of the variable compression curve under a 100kPa load does not exceed 8mm / h.

[0016] This invention also provides a construction method for a base plate structure that combines waterproofing and vibration damping properties, the construction method comprising the following steps:

[0017] Step S1: The factory produces prefabricated base slab structural components, and the construction site is excavated to the foundation for pile head and foundation cleaning;

[0018] Step S2: Transport the precast base plate structural components to the site and position and install them using the extended cutting edge of the end cap template;

[0019] Step S3: Lay the cast-in-place base slab cushion layer and waterproof layer in sequence in the area of ​​the cast-in-place base slab structure;

[0020] Step S4: Arrange and fix the longitudinal reinforcement of the engineering piles, the main reinforcement of the structural columns and the reinforcement of the structural layer in the cast-in-place base slab structure area, and connect them with the reserved main reinforcement of the surrounding precast base slab structure layer for stress-bearing connection.

[0021] Step S5: Cast-in-place concrete for the precast base slab structure layer and structural columns is poured as a whole, so that the precast base slab structure, cast-in-place base slab structure, engineering piles and structural columns are integrated into one unit;

[0022] Step S6: After the concrete reaches its strength, construct the vibration damping filling layer of the cast-in-place base slab on the top surface of the cast-in-place base slab structural layer and the sides of the structural columns.

[0023] Step S7: Lay the bonding layer and finishing layer from bottom to top on the top surface of the cast-in-place foundation slab vibration damping filling layer and the precast foundation slab structural layer.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0025] (1) The base plate structure and its construction method of the present invention, which combines waterproof and vibration reduction performance, are produced in a standardized, large-scale and refined manner in the factory, and then transported to the construction site for positioning and installation. Then, a small amount of on-site casting work is carried out in the area of ​​the cast-in-place base plate structure to form the overall base plate structure. This can effectively shorten the construction cycle, improve the quality of the project, save project costs, and at the same time reduce the noise, dust and other pollution of on-site construction. It is an environmentally friendly green construction method.

[0026] (2) The waterproof and vibration-damping base plate structure and its construction method of the present invention pre-design waterproofing methods and vibration-damping structures according to waterproofing and vibration-damping requirements during the production stage of the precast base plate structure. Through the close integration of the waterproof layer, vibration-damping layer and structural layer and construction layer, as well as the sealing and isolation treatment at the joint of the precast base plate and the cast-in-place base plate, the integration of structural stress, base plate waterproofing and building vibration-damping performance is realized, which is conducive to improving the safety, durability and comfort of the building.

[0027] (3) The base plate structure and construction method of the present invention, which has both waterproof and vibration reduction properties, is constructed by setting a first waterproof layer and a second waterproof layer in the precast base plate structure and extending them upward to the top surface of the structural layer and the construction layer, and by setting a perimeter water-stop steel plate and a rubber water-stop strip on the outside of the end cap template, which together form a multi-layer perimeter closed waterproof system, so that the interior of the precast base plate and the cast-in-place base plate form a complete water-stop isolation in both horizontal and vertical directions, thus ensuring the waterproof performance of the base plate after the overall connection.

[0028] (4) The waterproof and vibration-damping base plate structure and its construction method of the present invention completely isolate the precast base plate structural layer from the precast base plate structural layer that is directly affected by subway vibration through the precast base plate vibration damping layer, and completely isolate the finishing layer from the cast-in-place base plate structural layer that is directly affected by subway vibration through the cast-in-place base plate vibration damping filling layer, thereby achieving the purpose of reducing the vibration effect of the full-area finishing layer on the top of the base plate above the structural layer and the vibration damping filling layer.

[0029] (5) The waterproof and vibration-damping base plate structure and its construction method of the present invention, through the force connection between the precast base plate structure reserved main reinforcement and the cast-in-place base plate structure layer main reinforcement, and the anchoring and fixing of the longitudinal reinforcement of the engineering piles and the main reinforcement of the structural columns and the overall pouring of concrete, make the precast base plate structure, the cast-in-place base plate structure, the engineering piles and the structural columns into one, which not only enhances the overall rigidity and stress performance of the foundation base plate and constitutes a complete foundation base plate structure complex, but also the engineering piles and structural columns can play a role in tying up and resisting buoyancy and vertical bearing pressure on the precast base plate structure, which is conducive to improving the bearing capacity and structural quality. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a prefabricated base slab structure with both waterproof and vibration-damping properties during the hoisting and positioning stage of a base slab structure according to an embodiment of the present invention.

[0031] Figure 2 This is a schematic diagram of a base plate structure with both waterproof and vibration damping properties during the binding and pouring stage of a cast-in-place base plate structure, according to an embodiment of the present invention.

[0032] Figure 3 for Figure 1 and Figure 2 AA structural cross-sectional view;

[0033] Figure 4 for Figure 1 and Figure 2 BB structure sectional view;

[0034] Figure 5 This is a schematic diagram of the prefabricated base plate in a base plate structure that combines waterproofing and vibration damping performance according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the fabrication process of the head template in a base plate structure that combines waterproofing and vibration reduction performance according to an embodiment of the present invention.

[0036] In the picture:

[0037] 10-Precast base slab structure; 11-Precast base slab cushion layer; 12-First waterproof layer; 13-Precast base slab structural layer; 14-Vibration damping pad; 15-Precast base slab structural layer; 16-Adhesive layer; 17-Finishing layer; 18-Second waterproof layer; 19-Edge vibration damping pad; 20-Structural column; 21-Main reinforcement of structural column; 30-End formwork; 31-Rubber waterstop; 32-Waterstop steel plate; 33-Extended cutting edge; 34-Through hole; 35-Main reinforcement of precast base slab structural layer; 36-Reserved main reinforcement of precast base slab structural layer; 40-Cast-in-place base slab structure; 41-Cast-in-place base slab structural layer; 42-Main reinforcement of cast-in-place base slab structural layer; 43-Cast-in-place base slab cushion layer; 44-Cast-in-place base slab waterproof layer; 45-Cast-in-place base slab vibration damping filling layer; 50-Engineering pile; 51-Longitudinal reinforcement of engineering pile. Detailed Implementation

[0038] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a base plate structure and its construction method that combine waterproofing and vibration damping properties according to the present invention. The advantages and features of the present invention will become clearer from the following description. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, used only to facilitate and clarify the illustration of the embodiments of the present invention. For ease of description, the terms "upper" and "lower" used below correspond to the upper and lower directions in the accompanying drawings, but this should not be construed as a limitation of the technical solution of the present invention.

[0039] Example 1

[0040] In this embodiment, the pile-between area refers to a rectangular plate located between the engineering pile 50 and the structural column 20, with no engineering pile below and no structural column above. The plate area is usually large and is constructed using a precast base slab structure 10. The pile top area refers to a grid-like plate located above the engineering pile 50 and below the structural column 20, extending outwards from the center of the engineering pile and the structural column to both sides with a width of 500-1500mm. Since the anchoring steel bars of the pile top and column foot are arranged in the pile top area, it is considered to tie and position them on site and pour concrete to form a cast-in-place base slab structure 40 to ensure quality.

[0041] Please see Figures 1 to 6 A base slab structure with both waterproof and vibration damping properties includes a precast base slab structure 10 and a cast-in-place base slab structure 40. The precast base slab structure 10 includes, from bottom to top, a precast base slab pad layer 11, a first waterproof layer 12, a precast base slab structural layer 13, a precast base slab vibration damping layer, a second waterproof layer 18, a precast base slab structural layer 15, and a perimeter vertically enclosing end formwork 30. The cast-in-place base slab structure 40 includes, from bottom to top, a cast-in-place base slab pad layer 43, a cast-in-place base slab waterproof layer 44, and a cast-in-place base slab structural layer 45. The cast-in-place base slab structural layer 41 and the cast-in-place base slab vibration damping filling layer 45 are connected by the main reinforcement 42 of the cast-in-place base slab structural layer and the reserved main reinforcement 36 of the precast base slab structural layer, as well as the anchoring and fixing of the longitudinal reinforcement 51 of the engineering pile and the main reinforcement 21 of the structural column. The precast base slab structure 10, the cast-in-place base slab structure 40, the engineering pile 50 and the structural column 20 are integrated by pouring concrete as a whole. The bonding layer 16 and the finishing layer 17 are laid from bottom to top on the top surface of the cast-in-place base slab vibration damping filling layer 45 and the precast base slab structural layer 15.

[0042] The precast base slab structure 10 has a planar dimension of 6m × 4.5m, and the cast-in-place base slab structure 40 has a width of 2m. The finished surface thickness of both is 800mm.

[0043] The first waterproof layer 12 of the precast base slab structure is made of waterproof membrane laid loosely on the precast base slab pad layer 11, and extends upward to the top surface of the precast base slab structure layer 13 to form a closed edge. The second waterproof layer 18 of the precast base slab structure is made of waterproof coating attached to the precast base slab vibration damping layer, and extends upward to the top surface of the structural layer 15 to form a closed edge. The two waterproof layers together constitute a multi-layer waterproof system, which can help improve the waterproof performance and durability of the building, and ensure that the precast base slab structure 10 is not damaged by groundwater or other water sources during long-term use.

[0044] The vibration damping layer of the precast base slab structure includes a vibration damping pad 14 that is horizontally laid on the precast base slab structure layer 13 and a perimeter vibration damping pad 19 that is vertically laid close to the inner side of the end cap template 30. The perimeter vibration damping pad 19 extends to the top of the vibration damping pad 14 at the corner, and the two overlap each other to form a vibration isolation structure for the base slab.

[0045] The precast base slab structure head template 30 is made of 50mm thick precast concrete slab with a single layer of bidirectional φ10@200 steel mesh inside. The head template 30 has through holes 34 with a diameter of φ15 at 200mm intervals. An outward-extending cutting edge 33 is provided at the corner position. The length of the outward-extending cutting edge is L / 5~L / 3, where L is the side length of the head template and the width is 50~500mm. A perimeter waterstop steel plate 32 and a rubber waterstop strip 31 are respectively set at the precast base slab structural layer 13 and structural layer 15 on the outside of the head template 30 to prevent groundwater and rainwater from seeping in from the joint.

[0046] In this embodiment, more preferably, the thickness, reinforcement values, and material type of both the precast foundation slab structural layer 13 and the cast-in-place foundation slab structural layer 41 are determined based on the stress analysis of the foundation slab structure. The thickness of the precast foundation slab structural layer 15 is determined according to the building usage requirements, and structural reinforcement is adopted. The main reinforcement 42 of the cast-in-place foundation slab structural layer and the reserved main reinforcement 36 of the precast foundation slab structural layer are effectively connected by various methods such as lap splicing, welding, and sleeve connection.

[0047] In this embodiment, more preferably, the precast base slab structural layer 13 is 500mm thick, the built-in precast base slab structural layer main reinforcement 35 is double-layered bidirectional φ20@150, the precast base slab structural layer 15 is 150mm thick, and the built-in single-layered bidirectional φ10@200 steel mesh is embedded. The cast-in-place base slab structural layer 41 is 500mm thick, the built-in cast-in-place base slab structural layer main reinforcement 42 is double-layered bidirectional φ20@150, the longitudinal reinforcement 51 of the engineering piles is 16φ20, and the main reinforcement 21 of the structural column is 8φ25.

[0048] In this embodiment, more preferably, the precast main reinforcement 36 of the precast base slab structural layer is the main load-bearing reinforcement of the structural layer, which is the extended section of the precast base slab structural layer main reinforcement 35 passing through the end cap template 30, and the extended length outside the end cap template 30 is greater than or equal to 35d, where d is the diameter of the precast base slab structural layer main reinforcement 36; the cast-in-place base slab structural layer main reinforcement 42 and the precast base slab structural layer reserved main reinforcement 36 are connected by welding.

[0049] In this embodiment, more preferably, the cast-in-place base plate vibration damping filling layer 45 is made by densely filling the top surface of the cast-in-place base plate structural layer 41 with a certain strength of sound-absorbing and vibration damping material to the side of the structural column 20, and is flush with the top surface of the precast base plate structural layer 15.

[0050] Specifically, the sound-absorbing and vibration-damping materials are selected based on the strength requirement that the average slope of the variable compression curve under a 100kPa load does not exceed 8mm / h; for example, high-density glass wool board is used. The precast base slab pad 11 is made of XPS board, and the cast-in-place base slab pad 43 is made of crushed stone concrete.

[0051] Please continue to refer to this. Figures 1-6 The present invention also provides a construction method for a base plate structure that combines waterproofing and vibration damping performance, the construction method comprising the following steps:

[0052] Step S1: The factory produces 10 prefabricated base slab structure components, and the construction site is excavated to the foundation for pile head and foundation cleaning;

[0053] Step S2: Transport the precast base plate structure 10 to the site and position and install it using the extended cutting edge 33 of the end cap template 30;

[0054] Step S3: Lay the cast-in-place base slab cushion layer 43 and the cast-in-place base slab waterproof layer 44 in sequence in the area of ​​the cast-in-place base slab structure;

[0055] Step S4: Arrange and fix the longitudinal reinforcement 51 of the engineering piles, the main reinforcement 21 of the structural columns and the reinforcement of the structural layer in the cast-in-place base slab structure area, and connect them with the reserved main reinforcement 36 of the surrounding precast base slab structure layer.

[0056] Step S5: Pour concrete for the cast-in-place base slab structure layer 41 and structural column 20 to form a whole from the precast base slab structure 10, the cast-in-place base slab structure 40, the engineering pile 20 and the structural column 50.

[0057] Step S6: After the concrete reaches its strength, construct the cast-in-place base slab vibration damping filling layer 45 on the top surface of the cast-in-place base slab structural layer 41 and the side surface of the structural column 20.

[0058] Step S7: Lay the adhesive layer 16 and the finishing layer 17 sequentially from bottom to top on the top surface of the cast-in-place foundation slab vibration damping filling layer 45 and the precast foundation slab structural layer 15.

[0059] The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. The above embodiments only illustrate several implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A base plate structure that combines waterproofing and vibration damping properties, characterized in that, The system includes a precast base slab structure and a cast-in-place base slab structure. The precast base slab structure comprises, from bottom to top, a precast base slab cushion layer, a first waterproof layer, a precast base slab structural layer, a precast base slab vibration damping layer, a second waterproof layer, a precast base slab structural layer, and a perimeter vertically enclosing end formwork. The precast base slab structure is positioned between engineering piles and structural columns, while avoiding their arrangement. The cast-in-place base slab structure comprises, from bottom to top, a cast-in-place base slab cushion layer, a cast-in-place base slab waterproof layer, and a cast-in-place base slab structural layer. The precast and cast-in-place foundation slabs are connected by a layer of main reinforcement and a precast foundation slab reinforcement. The cast-in-place foundation slab structure is positioned between the precast foundation slab structures, covering the area above the engineering piles and below the structural columns. The precast foundation slab structure, cast-in-place foundation slab structure, engineering piles, and structural columns are integrated by the stress connection between the main reinforcement of the cast-in-place foundation slab structure layer and the reserved main reinforcement of the precast foundation slab structure layer, as well as the anchoring and fixing of the longitudinal reinforcement of the engineering piles and the main reinforcement of the structural columns, and by pouring concrete as a whole. An adhesive layer and a finishing layer are then laid from bottom to top on the top surface of the cast-in-place foundation slab vibration damping filling layer and the precast foundation slab structural layer. The precast base slab vibration damping layer includes a horizontally laid vibration damping pad on the precast base slab structural layer and a vertically laid perimeter vibration damping pad close to the inner side of the end cap template. The perimeter vibration damping pad extends to the top of the vibration damping pad at the corner, and the two overlap to form vibration isolation. The end cap template of the precast base slab structure is arranged vertically along the perimeter of the precast base slab, enclosing the precast base slab pad layer to the precast base slab structural layer, and through holes are set at the reserved positions of the main reinforcement in the precast base slab structural layer. The height of the end cap template is the same as the thickness of the precast base slab. The cast-in-place base slab vibration damping filling layer is made by densely filling the top surface of the cast-in-place base slab structural layer with a certain strength of sound-absorbing and vibration damping material and filling it to the side of the structural column, and is flush with the top surface of the precast base slab structural layer. The sound-absorbing and vibration damping material must meet the strength requirement that the average slope of the variable compression curve under a 100kPa load does not exceed 8mm / h.

2. The base plate structure with both waterproof and vibration-damping properties according to claim 1, characterized in that, The first waterproof layer of the precast base slab structure is made of waterproof membrane laid loosely on the precast base slab pad layer and extends upward around the perimeter to the top surface of the precast base slab structure layer to form a closed edge. The second waterproof layer of the precast base slab structure is made of waterproof coating attached to the precast base slab vibration damping layer and extends upward around the perimeter to the top surface of the precast base slab structural layer to form a closed edge.

3. The base plate structure with both waterproof and vibration-damping properties according to claim 1, characterized in that, The precast base plate structure has an extended cutting edge at the corner position of the end plate template. The length of the extended cutting edge is L / 5 to L / 3, where L is the side length of the end plate template and the width is 50 to 500 mm.

4. The base plate structure with both waterproof and vibration-damping properties according to claim 1, characterized in that, The outer side of the end cap template of the precast base slab structure is pre-installed with edge-sealing steel plates and rubber waterstops on the precast base slab structure layer and the precast base slab construction layer, respectively.

5. The base plate structure with both waterproof and vibration-damping properties according to claim 1, characterized in that, The reserved main reinforcement bars of the precast base slab structural layer are the main load-bearing reinforcement bars of the precast base slab structural layer. They are the outward extensions of the main reinforcement bars of the precast base slab structural layer that pass through the end cap template. The outward extension length outside the end cap template is greater than or equal to 35d, where d is the diameter of the reserved main reinforcement bars of the precast base slab structural layer.

6. The construction method of the base plate structure with both waterproof and vibration damping properties according to claim 3, characterized in that, Includes the following steps: Step S1: The factory produces prefabricated base slab structural components, and the construction site is excavated to the foundation for pile head and foundation cleaning; Step S2: Transport the precast base plate structural components to the site and position and install them using the extended cutting edge of the end cap template; Step S3: Lay the cast-in-place base slab cushion layer and the cast-in-place base slab waterproof layer in sequence in the area of ​​the cast-in-place base slab structure; Step S4: Arrange and fix the longitudinal reinforcement of the engineering piles, the main reinforcement of the structural columns and the reinforcement of the cast-in-place foundation slab in the cast-in-place foundation slab structural area, and connect them with the reserved main reinforcement of the surrounding precast foundation slab structural layer for stress-bearing connection. Step S5: Cast-in-place concrete for the precast base slab structure layer and structural columns is poured as a whole, so that the precast base slab structure, cast-in-place base slab structure, engineering piles and structural columns are integrated into one unit; Step S6: After the concrete reaches its strength, construct the vibration damping filling layer of the cast-in-place base slab on the top surface of the cast-in-place base slab structural layer and the sides of the structural columns. Step S7: Lay the bonding layer and finishing layer from bottom to top on the top surface of the cast-in-place foundation slab vibration damping filling layer and the precast foundation slab structural layer.

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