Prefabricated ribbed basement wall structure

Abstract

The utility model relates to building structure technical field, concretely relates to a prefabricated rib shape basement outer wall structure, including the mutual connection of many protective plates, and the protective plate is the prefabricated concrete structure, the edge of the protective plate is equipped with tenon and interface groove, the back of the protective plate is equipped with longitudinal groove, the protective plate includes rib roof beam and many mainboards, and the rib roof beam is fixed between two adjacent mainboards and the periphery, the tenon is located at the edge position of the rib roof beam, and the interface groove is opened at the rib roof beam and the mainboard at the edge position, the front of the mainboard is equipped with convex texture, the utility model discloses prefabricated protective plate directly carries out the field assembly construction, does not need to erect scaffold, and the installation is convenient and simplifies the construction process, and the layered construction is controllable, and the prefabricated protective plate is installed in the way of splicing, and then is not easy to be influenced by complex geology and climate conditions.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, specifically to a prefabricated ribbed basement exterior wall structure. Background Technology

[0002] Because concealed works such as basement exterior wall waterproofing and earthwork backfilling are difficult to observe and control during construction, and the subsequent environmental impact is unpredictable, exterior wall leakage problems remain widespread. Currently, there are various construction methods for waterproofing protective layers on the exterior walls of underground projects, including brick masonry waterproofing protection, soft protective layer bonding, and mortar protective layer methods. However, the construction efficiency of brick masonry-based hard protective layers is low, and the quality of soft protective layer bonding processes is difficult to guarantee, failing to meet the demands of rapid construction in modern underground projects. Furthermore, existing construction techniques exhibit significant limitations when facing complex geological and climatic conditions, making it difficult to fully adapt to the needs of different construction environments. Utility Model Content

[0003] The purpose of this utility model is to provide a prefabricated ribbed basement exterior wall structure to solve the technical problems of low construction efficiency and difficulty in adapting to different construction environments in existing basement exterior wall waterproofing structures. The specific technical solution is as follows:

[0004] This utility model provides a prefabricated ribbed basement exterior wall structure, including multiple interconnected protective panels, which are prefabricated concrete structures; the edges of the protective panels are provided with tenons and interface grooves, and the back of the protective panels is provided with longitudinal grooves; the protective panels include rib beams and multiple main panels, the rib beams are fixed between adjacent main panels and on the periphery; the tenons are provided at the edges of the rib beams, and the interface grooves are opened at the edges of the rib beams and the main panels; the front of the main panels is provided with raised textures.

[0005] A further improvement of this utility model of prefabricated ribbed basement exterior wall structure is that the cross-section of the longitudinal groove is trapezoidal.

[0006] A further improvement of this utility model of prefabricated ribbed basement exterior wall structure is that the depth of the longitudinal groove is 8-12mm and the width is 15-20mm.

[0007] A further improvement of this utility model of prefabricated ribbed basement exterior wall structure is that there are multiple longitudinal grooves, which are arranged in parallel and spaced apart, with a distance of 60-80mm between two adjacent longitudinal grooves.

[0008] A further improvement of this utility model of prefabricated ribbed basement exterior wall structure is that the tenon and the interface groove are trapezoidal to match.

[0009] A further improvement of this utility model of prefabricated ribbed basement exterior wall structure is that a EPDM sealing strip is pre-embedded in the splice joint between the tenon and the interface groove.

[0010] A further improvement of this utility model of prefabricated ribbed basement exterior wall structure is that the raised texture is rhomboid and covers more than 70% of the main board area.

[0011] A further improvement of this utility model of prefabricated ribbed basement exterior wall structure is that an expansion joint is provided between at least three of the protective panels in each row, and the expansion joint is filled with sealant.

[0012] The application of the technical solution of this utility model has the following beneficial effects:

[0013] This utility model relates to a prefabricated ribbed basement exterior wall structure. By directly assembling prefabricated protective panels on-site, scaffolding is eliminated, simplifying installation and the construction process. Layered construction allows for controlled progress. Furthermore, the prefabricated protective panels, installed using a splicing method, are less susceptible to complex geological and climatic conditions, solving the technical problems of low construction efficiency and difficulty in adapting to different construction environments in existing basement exterior wall waterproofing structures. The protective panels of this utility model are spliced ​​using tenons and grooved joints, making it less likely for adjacent panels to detach and cause water seepage. The longitudinal grooves reduce the weight of the protective panels, facilitating transportation and installation. The raised texture design increases the friction coefficient between the main panel and the outer wall fill soil.

[0014] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the front structure of the protective panel of the prefabricated ribbed basement exterior wall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the back structure of the protective panel of the prefabricated ribbed basement exterior wall structure of this utility model;

[0018] Figure 3 This is a structural schematic diagram of the prefabricated ribbed basement exterior wall structure of this utility model.

[0019] Among them, 1. Protective plate; 2. Main board; 3. Rib beam; 4. Mortar joint; 5. Adhesive mortar; 6. Longitudinal groove; 7. Tenon; 8. Interface groove; 9. Raised texture; 10. Expansion joint. Detailed Implementation

[0020] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] See Figures 1-3 As shown, a prefabricated ribbed basement exterior wall structure includes multiple interconnected protective panels 1, each protective panel 1 being a prefabricated concrete structure, with a waterproof layer on its back; the edges of each protective panel 1 are provided with tenons 7 and interface grooves 8, and the back of each protective panel 1 is provided with longitudinal grooves 6; each protective panel 1 includes rib beams 3 and multiple main panels 2, the rib beams 3 being fixed between adjacent main panels 2 and on the periphery; the tenons 7 are located at the edges of the rib beams 3, and the interface grooves 8 are opened at the edges of the rib beams 3 and the main panels 2; the front of each main panel 2 is provided with raised textures 9.

[0022] In this embodiment, an expansion joint 10 is installed every 3-4 protective plates 1 (i.e., at intervals of 3.6-4.8m) along the length of the protective plate 1. The expansion joint 10 is 10-15mm wide. Each construction section of the protective plate 1 is 10m-15m long, and a mortar joint 4 is provided between every two adjacent protective plates, with a width of 8-10mm. The rib beams 3 at the expansion joint 10 are broken at intervals of 20mm. The main plate 2 is reinforced with ribs at the location of the expansion joint 10, with the rib height increased by 5mm and the width increased by 10mm. The raised texture 9 is removed within 200mm on both sides of the expansion joint 10 to form a flat sealing surface. This waterproof layer can be made of waterproof membrane.

[0023] Preferably, the longitudinal groove 6 has a trapezoidal cross-section. Further, the depth of the longitudinal groove 6 is 8-12 mm, and the width is 15-20 mm. The bottom width of the longitudinal groove 6 is 2-3 mm narrower than the opening, forming an inverted trapezoidal structure. The design of the longitudinal groove 6 reduces the weight of the main board 2 by 15%-20%, while the inclined surface of the groove wall maintains the compressive strength of the protective plate 1 at no less than 30 MPa.

[0024] Preferably, there are multiple longitudinal grooves 6, which are arranged in parallel and spaced apart, with a distance of 60-80mm between two adjacent longitudinal grooves 6.

[0025] Preferably, the tenon 7 and the interface groove 8 are trapezoidal to fit together, with a tenon height of 10mm, a top width of 8mm, and a bottom width of 12mm; the other long side is provided with an interface groove 8, with a groove depth of 12mm, a groove opening width of 10mm, and a groove bottom width of 14mm, forming an interference fit. The short side of the protective plate 1 adopts a half-tenon structure with a tenon length of 30mm, which overlaps with the adjacent plate in a staggered manner.

[0026] Preferably, an EPDM sealing strip is pre-embedded in the joint between the tenon 7 and the interface groove 8. The EPDM sealing strip has a cross-sectional diameter of 6mm, thereby sealing the gap between the tenon 7 and the interface groove 8 and improving the waterproof effect.

[0027] Preferably, the raised texture 9 is rhomboid in shape, covering more than 70% of the area of ​​the main board 2, with the remaining area of ​​the main board 2 being a smooth mortar bonding strip. Each raised texture 9 has a height of 2-3 mm, a planar projection size of 15 mm × 20 mm, and a center-to-center distance of 25 mm longitudinally and 30 mm laterally between adjacent raised textures. The raised texture 9 can increase the interface friction coefficient between the main board 2 and the external wall backfill soil to 0.45-0.55.

[0028] Increasing the coefficient of friction at the backfill interface can improve the anti-slip stability of the main sheet, specifically in the following ways:

[0029] Horizontal load resistance: Under the action of lateral earth pressure in the basement (usually 30-100kPa), the frictional resistance can be increased by more than 50%, significantly reducing the risk of overall displacement of the protective plate;

[0030] Vibration condition adaptation: During earthquakes or vehicle vibrations, the textured structure dissipates energy through soil particle rearrangement, avoiding the accumulation of interface slip (the displacement is reduced by 40% in actual vibration table tests).

[0031] Increasing the interfacial friction coefficient of backfill soil can optimize the soil structure in a coordinated manner, specifically manifested in the following ways:

[0032] Restraining soil deformation: The raised texture can form a "micro-reinforced zone", which restricts the local shear deformation of the backfill soil (triaxial tests show that the soil strain is reduced by 15-25%).

[0033] Drainage path guidance: The gaps in the texture form capillary drainage channels, accelerating the discharge of pore water and increasing the effective stress of the soil (consolidation time is shortened by 30%). Preferably, an expansion joint 10 is provided between at least three of the protective plates 1 in each row, and the expansion joint 10 is filled with sealant to ensure the waterproof effect of the expansion joint 10. In this embodiment, the sealant is a high-molecular elastic sealant, such as MS (silane-terminated polyether-based crosslinked polymer) sealant.

[0034] During construction, the protective board 1 is first transported to the construction site, and then waterproof membrane is pasted on the back of the protective board 1 to form a waterproof layer. EPDM sealing strips are pre-embedded in the joint groove 8. The protective board 1 is lifted manually or mechanically, and the tenon 7 is first inserted into the joint groove 8 at an angle, then pushed horizontally until the tenon and mortise are fully engaged (sliding distance 30-50mm). A rubber mallet is used to tap along the rib beam 3 to ensure that the tenon shoulder is tightly attached to the groove wall. The protective boards 1 are pasted layer by layer from bottom to top. After the protective boards 1 are pasted, the gaps are sealed with a mixture of bonding mortar 5 in a timely manner. An expansion joint 10 is set every 3-4 protective boards 1 (i.e., every 3.6-4.8m) along the length of the protective boards 1, and the expansion joint is filled with sealant. After the protective boards 1 reach the required bonding strength, the bottom backfill soil is backfilled in sections and compacted.

[0035] This utility model relates to a prefabricated ribbed basement exterior wall structure. By directly assembling the prefabricated protective panels 1 on-site, scaffolding is not required, making installation convenient and simplifying the construction process. Layered construction allows for controllable progress. Furthermore, the prefabricated protective panels 1, installed using a splicing method, are less susceptible to complex geological and climatic conditions, solving the technical problems of low construction efficiency and difficulty in adapting to different construction environments in existing basement exterior wall waterproofing structures. The protective panels 1 of this utility model are spliced ​​using tenons 7 and interface grooves 8, making it less likely for adjacent protective panels 1 to detach and cause water seepage. The longitudinal grooves 6 reduce the weight of the protective panels 1, facilitating transportation and installation. The raised texture design 9 increases the friction coefficient between the main panel 2 and the outer wall filling soil.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A prefabricated ribbed basement exterior wall structure, characterized in that, It includes multiple interconnected protective plates (1), the protective plates (1) being precast concrete structures; the edges of the protective plates (1) are provided with tenons (7) and interface grooves (8), and the back of the protective plates (1) is provided with longitudinal grooves (6). The protective plate (1) includes a rib (3) and multiple main plates (2). The rib (3) is fixed between two adjacent main plates (2) and on the periphery. The tenon (7) is located at the edge of the rib (3). The interface groove (8) is opened at the edge of the rib (3) and the main plate (2). The front of the main plate (2) is provided with raised texture (9).

2. The prefabricated ribbed basement exterior wall structure according to claim 1, characterized in that, The longitudinal groove (6) has a trapezoidal cross-section.

3. The prefabricated ribbed basement exterior wall structure according to claim 2, characterized in that, The longitudinal groove (6) has a depth of 8-12 mm and a width of 15-20 mm.

4. The prefabricated ribbed basement exterior wall structure according to claim 1, characterized in that, The number of longitudinal grooves (6) is multiple, and the multiple longitudinal grooves (6) are arranged in parallel and spaced apart, with the distance between two adjacent longitudinal grooves (6) being 60-80mm.

5. The prefabricated ribbed basement exterior wall structure according to claim 1, characterized in that, The tenon (7) and the interface groove (8) are trapezoidal in shape.

6. The prefabricated ribbed basement exterior wall structure according to claim 1, characterized in that, A EPDM sealing strip is pre-embedded in the splice joint between the tenon (7) and the interface groove (8).

7. The prefabricated ribbed basement exterior wall structure according to claim 1, characterized in that, The raised texture (9) is rhomboid and covers more than 70% of the area of ​​the motherboard (2).

8. The prefabricated ribbed basement exterior wall structure according to claim 1, characterized in that, Expansion joints (10) are provided between at least three of the protective plates (1) in each row, and the expansion joints (10) are filled with sealant.

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