Fabricated basement system and manufacturing method

Abstract

The fabricated basement system comprises a prefabricated outer wall, a cast-in-place inner wall, a prefabricated floor slab, a post-pouring interlayer and a post-pouring floor slab layer, and the prefabricated outer wall comprises an outer leaf wall and an inner leaf wall which are arranged in a spaced mode in the second direction and pulled into a whole through a steel bar truss; an interlayer cavity used for pouring a post-pouring interlayer is defined between the outer leaf wall and the inner leaf wall, the outer leaf wall extends out of the inner leaf wall in the first direction, the outer leaf cavities of the two adjacent prefabricated outer walls abut against each other in the first direction, the cast-in-place inner wall is provided with a supporting boss protruding towards the prefabricated outer walls, and the prefabricated floor slab is arranged on the inner leaf wall and the supporting boss in a lap joint mode. The outer leaf wall, the cast-in-place inner wall and the prefabricated floor jointly define a floor pouring cavity used for pouring a post-poured floor layer above the prefabricated floor. According to the assembly type basement system, split cross operation of all parts of the assembly type basement system can be achieved, the construction efficiency is improved, the construction cost is reduced, and the structural strength and waterproof performance of the prefabricated outer wall are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building engineering, and in particular to an assembled basement system and a manufacturing method thereof. Background Art

[0002] In the relevant technology, the supporting basement generally adopts the traditional cast-in-place concrete structure construction method. At the same time, the single-layer area of ​​the basement is large and there is basically no standard layer. When the traditional cast-in-place concrete structure construction method is adopted, there are problems such as large formwork support, long construction period, high formwork amortization cost, and inability to cross-operate. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to propose a prefabricated basement system, which can reduce the number of support molds used, improve construction efficiency, realize the split cross operation of various parts of the prefabricated basement system, shorten the construction period of the prefabricated basement system, and reduce the construction cost of the prefabricated basement system. After pouring concrete slurry into the interlayer cavity, the structural strength of the post-cast interlayer between two adjacent inner leaf walls can be made higher, ensuring the structural strength and waterproof performance of the prefabricated exterior wall, and improving the overall performance of the prefabricated basement system.

[0004] The present invention also provides a method for manufacturing the above-mentioned assembled basement system.

[0005] According to the first aspect of the present invention, the assembled basement system comprises: a plurality of prefabricated exterior walls arranged in a first direction, each of the prefabricated exterior walls comprises an outer leaf wall and an inner leaf wall spaced apart in a second direction, the outer leaf wall and the inner leaf wall are connected as a whole by a steel truss, a sandwich cavity is defined between the outer leaf wall and the inner leaf wall, the outer leaf wall extends upwardly from the inner leaf wall, both sides of the outer leaf wall in the first direction extend from the corresponding sides of the inner leaf wall in the first direction, and the outer leaf walls of two adjacent prefabricated exterior walls are connected to each other by a steel truss. The cavity abuts in the first direction; the cast-in-place inner wall is arranged on the side of the inner leaf wall away from the outer leaf wall, and has a supporting boss protruding toward the prefabricated outer wall; the prefabricated floor slab is placed on the inner leaf wall and the supporting boss, and the outer leaf wall, the cast-in-place inner wall and the prefabricated floor slab jointly define a floor slab casting cavity above the prefabricated floor slab; the post-cast interlayer is filled in the interlayer cavity by pouring; the post-cast floor slab layer is filled in the floor slab casting cavity by pouring; wherein, the first direction is perpendicular to the second direction.

[0006] According to the prefabricated basement system of the present invention, by setting a prefabricated outer wall having an outer leaf wall and an inner leaf wall, and setting the outer leaf wall to extend out of the inner leaf wall in the second direction, the outer leaf wall can be used as a supporting mold for the basement outer wall and does not need to be removed. When pouring the post-cast interlayer, support can be provided only at the gap between two adjacent inner leaf walls, thereby reducing the number of supporting molds used and improving construction efficiency. Moreover, after pouring the concrete slurry into the interlayer cavity, the portion of the post-cast interlayer between the two adjacent inner leaf walls can be larger in size in the first direction, thereby making the structural strength of the post-cast interlayer between the two adjacent inner leaf walls higher, thereby ensuring the structural strength and waterproof performance of the prefabricated outer wall and improving the overall performance of the prefabricated basement system. Moreover, by setting the prefabricated outer wall and the prefabricated floor slab, the prefabricated outer wall and the prefabricated floor slab can be manufactured while pouring the cast-in-place inner wall, thereby realizing the separate and cross-operation of the various parts of the prefabricated basement system, shortening the construction period of the prefabricated basement system, and reducing the construction cost of the prefabricated basement system.

[0007] According to some embodiments of the present invention, the portion of the outer leaf wall extending out of the inner leaf wall in the first direction is a water stop portion, and a size of the water stop portion in the first direction is greater than or equal to 150 mm and less than or equal to 250 mm.

[0008] According to some embodiments of the present invention, the portion of the outer leaf wall extending out of the inner leaf wall in the first direction is a water stop portion, and the prefabricated outer wall further includes a water stop plate connected to the water stop portion.

[0009] According to some embodiments of the present invention, the water stop plate is wavy.

[0010] According to some embodiments of the present invention, a straight threaded sleeve is pre-embedded in the portion of the cast-in-place interior wall above the supporting boss, a steel grid is provided in the floor slab casting cavity, and the reinforcing steel bars in the steel grid are passed through the straight threaded sleeve.

[0011] According to some embodiments of the present invention, the prefabricated floor slab defines a hollow cavity, the portion of the outer leaf wall extending upward from the inner leaf wall is a first casting portion, and the prefabricated floor slab is spaced apart from the first casting portion in the second direction; the portion of the cast-in-place inner wall above the supporting boss is a second casting portion, and the prefabricated floor slab is spaced apart from the second casting portion in the second direction.

[0012] According to some embodiments of the present invention, the prefabricated floor slab defines a hollow cavity, a block for sealing the hollow cavity is provided in the hollow cavity, and the interval between the block and the opening of the hollow cavity in the second direction is greater than or equal to 500 mm and less than or equal to 1000 mm.

[0013] According to some embodiments of the present invention, the prefabricated floor slab includes a main body and a cantilever. In the direction from bottom to top, the size of the main body in the first direction gradually decreases, the cantilever is connected to both sides of the main body in the first direction, the cantilever is connected to the lower side of the main body, the height of the cantilever is less than the height of the main body, and the cantilever of two adjacent prefabricated floor slabs abuts in the first direction.

[0014] The construction method according to the second aspect of the present invention is used to construct the assembled basement system according to the first aspect of the present invention, and the construction method includes:

[0015] producing the prefabricated exterior wall;

[0016] producing the prefabricated floor slab;

[0017] Producing the cast-in-place inner wall, and pre-embedding a straight threaded sleeve above the supporting boss;

[0018] Install the prefabricated exterior wall and build diagonal braces for the prefabricated exterior wall;

[0019] Blocking the gap between two adjacent inner leaf walls;

[0020] pouring concrete slurry into the interlayer cavity;

[0021] installing the prefabricated floor slab;

[0022] tying a steel mesh frame in the floor slab casting cavity;

[0023] Blocking the gap of the floor slab casting cavity;

[0024] Concrete slurry is poured into the floor slab pouring cavity.

[0025] According to the construction method of the present invention, by utilizing the above-mentioned prefabricated exterior walls to splice as the exterior walls of the basement, support can be performed only at the gap between two adjacent inner leaf walls, thereby reducing the number of support molds used and improving construction efficiency. Moreover, the portion of the post-cast interlayer between the two adjacent inner leaf walls can be made larger in the first direction, and the structural strength of the post-cast interlayer between the two adjacent inner leaf walls can be made higher, thereby ensuring the structural strength and waterproof performance of the prefabricated exterior walls and improving the overall performance of the prefabricated basement system. Moreover, the prefabricated exterior walls and prefabricated floor slabs can be manufactured while the cast-in-place interior walls are being poured, thereby realizing the separate and cross-operation of the various parts of the prefabricated basement system, shortening the construction period of the prefabricated basement system and reducing the construction cost of the prefabricated basement system.

[0026] According to some embodiments of the present invention, one end of the prefabricated floor slab close to the outer leaf wall in the second direction is a first end, and the other end is a second end; the construction method comprises:

[0027] When installing the prefabricated floor slab, the first end is spaced apart from the outer leaf wall, and the second end is spaced apart from the part of the cast-in-place inner wall located above the supporting boss;

[0028] The interlayer cavity and the floor slab casting cavity are cast in one piece.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 is a schematic structural diagram of a prefabricated basement system according to some embodiments of the present invention;

[0032] Figure 2 yes Figure 1 A structural diagram of the prefabricated basement system from another perspective;

[0033] Figure 3 yes Figure 1 A structural schematic diagram of the prefabricated basement system from another perspective;

[0034] Figure 4 yes Figure 1 Structural diagram of the prefabricated exterior wall;

[0035] Figure 5 yes Figure 1 Structural diagram of cast-in-place inner wall and straight thread sleeve;

[0036] Figure 6 yes Figure 1 Structural diagram of two precast floor slabs placed side by side.

[0037] Reference numerals:

[0038] 100. Prefabricated basement system;

[0039] 1. Prefabricated exterior wall; 11. Exterior leaf wall; 111. Water stop; 112. First pouring part; 12. Inner leaf wall; 13. Steel truss; 14. Water stop plate; 15. Interlayer cavity;

[0040] 2. Cast-in-place inner wall; 21. Support boss; 22. Second pouring part;

[0041] 3. Prefabricated floor slab; 31. Main body; 311. Hollow cavity; 32. Cantilever ear; 33. Floor slab pouring cavity;

[0042] 4. Straight thread sleeve;

[0043] 5. Strengthen the steel bars. DETAILED DESCRIPTION

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0045] The following describes a prefabricated basement system 100 according to an embodiment of the present invention with reference to the accompanying drawings.

[0046] Reference Figure 1-Figure 6 According to the first embodiment of the present invention, the prefabricated basement system 100 comprises: a plurality of prefabricated exterior walls 1, cast-in-place interior walls 2, prefabricated floor slabs 3, post-cast interlayers and post-cast floor slab layers arranged along a first direction (refer to the e1 direction in the attached drawings), each prefabricated exterior wall 1 comprises an exterior leaf wall 11 and an interior leaf wall 12, the exterior leaf wall 11 and the interior leaf wall 12 are arranged at intervals along a second direction (refer to the e2 direction in the attached drawings), the exterior leaf wall 11 and the interior leaf wall 12 are pulled together by a steel truss 13, an interlayer cavity 15 is defined between the exterior leaf wall 11 and the interior leaf wall 12, the exterior leaf wall 11 extends upwardly from the interior leaf wall 12, both sides of the exterior leaf wall 11 in the first direction extend out from the corresponding sides of the interior leaf wall 12 in the first direction, and the exterior leaf cavities of two adjacent prefabricated exterior walls 1 abut against each other in the first direction;

[0047] The cast-in-place inner wall 2 is arranged on the side of the inner leaf wall 12 away from the outer leaf wall 11, and the cast-in-place inner wall 2 has a support boss 21 protruding toward the prefabricated outer wall 1; the prefabricated floor 3 is placed on the inner leaf wall 12 and the support boss 21. For example, the size of the support boss 21 in the second direction can be 100mm-150mm, so that the support boss 21 has a sufficiently wide step surface to support the prefabricated floor 3, and the size of the support boss 21 in the upper and lower directions can be 100mm-200mm, so that the support boss 21 has a sufficient structure to lightly support the prefabricated floor 3.

[0048] The outer leaf wall 11, the cast-in-place inner wall 2 and the precast floor slab 3 together define a floor slab pouring cavity 33 above the precast floor slab 3, the post-cast interlayer is filled in the interlayer cavity 15 by pouring, and the post-cast floor slab layer is filled in the floor slab pouring cavity 33 by pouring; wherein the first direction is perpendicular to the second direction.

[0049] When constructing the prefabricated basement system 100, the prefabricated exterior wall 1 and the prefabricated floor 3 can be made while pouring the cast-in-place interior wall 2. After the prefabricated exterior wall 1 is formed, the prefabricated exterior wall 1 can be placed at the basement exterior wall position of the prefabricated basement system 100, and the outer leaf wall 11 of the prefabricated exterior wall 1 is set toward the outside. Then, mold support is performed at the gap between two adjacent inner leaf walls 12, and concrete slurry is poured into the interlayer cavity 15. After forming, the interlayer is cast. Thereafter, the prefabricated floor 3 is placed on the inner leaf wall 12 and the supporting boss 21, and mold support is performed on the gap in the horizontal direction of the floor pouring cavity 33. Concrete slurry is poured into the floor pouring cavity 33. After forming, the floor layer is cast.

[0050] By providing the prefabricated exterior wall 1 and the prefabricated floor slab 3, the prefabricated exterior wall 1 and the prefabricated floor slab 3 can be manufactured while the cast-in-place interior wall 2 is being poured, thereby realizing the separate and cross-operation of the various parts of the prefabricated basement system 100, shortening the construction period of the prefabricated basement system 100, and reducing the construction cost of the prefabricated basement system 100.

[0051] By having a prefabricated outer wall 1 with an outer leaf wall 11 and an inner leaf wall 12, and setting the outer leaf wall 11 to extend out of the inner leaf wall 12 in the second direction, the outer leaf wall 11 can be used as a support mold for the outer wall of the basement without removal. When pouring the post-cast interlayer, support can be provided only at the gap between two adjacent inner leaf walls 12, thereby reducing the number of support molds used and improving construction efficiency. Moreover, by abutting two adjacent outer leaf walls 11 together, the gap between the two adjacent outer leaf walls 11 can be made smaller, reducing the risk of groundwater extending into the basement from the gap between the two adjacent outer leaf walls 11. The post-cast interlayer can also play a sealing role, further improving the sealing effect of the outer wall of the basement.

[0052] After pouring the concrete slurry into the interlayer cavity 15, the portion of the post-cast interlayer between two adjacent inner leaf walls 12 can be larger in the first direction, so that the structural strength of the post-cast interlayer between two adjacent inner leaf walls 12 can be higher, which can effectively reduce the risk of cracking of the post-cast interlayer between the two inner leaf walls 12, improve the structural strength of the post-cast interlayer, improve the reliability of the post-cast interlayer, ensure the structural strength and waterproof performance of the basement exterior wall, and improve the overall performance of the prefabricated basement system 100.

[0053] According to the prefabricated basement system 100 of the present invention, by providing a prefabricated outer wall 1 having an outer leaf wall 11 and an inner leaf wall 12, and the outer leaf wall 11 is provided to extend out of the inner leaf wall 12 in the second direction, the outer leaf wall 11 can be used as a supporting mold for the outer wall of the basement and does not need to be removed. When pouring the post-cast interlayer, support can be provided only at the gap between two adjacent inner leaf walls 12, thereby reducing the number of supporting molds used and improving construction efficiency. Moreover, after pouring the concrete slurry into the interlayer cavity 15, the post-cast interlayer can be formed between the two adjacent inner leaf walls 12. The larger size of the part in the first direction can make the structural strength of the post-cast interlayer between the two adjacent inner leaf walls 12 higher, ensure the structural strength and waterproof performance of the prefabricated exterior wall 1, and improve the overall performance of the prefabricated basement system 100; and by arranging the prefabricated exterior wall 1 and the prefabricated floor slab 3, the prefabricated exterior wall 1 and the prefabricated floor slab 3 can be manufactured while pouring the cast-in-place interior wall 2, so as to realize the separate and cross-operation of the various parts of the prefabricated basement system 100, shorten the construction period of the prefabricated basement system 100, and reduce the construction cost of the prefabricated basement system 100.

[0054] Reference Figure 1 , Figure 2 and Figure 4 According to some embodiments of the present invention, the portion of the outer leaf wall 11 that extends out of the inner leaf wall 12 in the first direction is a water stop portion 111, and the size of the water stop portion 111 in the first direction is greater than or equal to 150 mm and less than or equal to 250 mm. For example, the size of the water stop portion 111 in the first direction can be 150 mm, 160 mm, 170 mm, 180 mm, 190 mm, 200 mm, 210 mm, 220 mm, 230 mm, 240 mm, 250 mm. In this way, the spacing between two adjacent inner leaf walls 12 will not be too large. At the same time, the structural strength of the post-cast interlayer between the two adjacent inner leaf walls 12 is higher, so that the mold supporting the gap between the two adjacent inner leaf walls 12 can be set smaller, which is convenient for supporting the mold, reducing work intensity, and improving production efficiency.

[0055] Reference Figure 1 , Figure 2 and Figure 4 According to some embodiments of the present invention, the portion of the outer leaf wall 11 extending out of the inner leaf wall 12 in the first direction is a water stop portion 111, and the prefabricated outer wall 1 further includes a water stop plate 14, which is connected to the water stop portion 111. For example, the water stop plate 14 may be a plastic plate, or a metal plate. By providing the water stop plate 14, after the post-cast interlayer is cast and formed, the outer leaf wall 11 and the post-cast interlayer can form a sealed waterproof structure, thereby reducing the risk of groundwater infiltration toward the interlayer cavity 15 and improving the waterproof performance of the basement outer wall.

[0056] Reference Figure 1 , Figure 2 and Figure 4 According to some embodiments of the present invention, the water stop plate 14 is wavy. This allows the water stop plate 14 to have a higher structural strength. When pouring concrete slurry toward the interlayer cavity 15, this prevents the concrete slurry from squeezing the water stop plate 14 and deforming it, thereby preventing the sealing of the water stop plate 14 from failing. This effectively ensures the integrity of the water stop plate 14 and improves the sealing reliability of the basement exterior wall.

[0057] Reference Figure 1-Figure 3 and Figure 5 According to some embodiments of the present invention, a straight thread sleeve 4 is pre-buried in the part of the cast-in-place inner wall 2 above the supporting boss 21, a steel mesh is provided in the floor slab casting cavity 33, and the reinforcing steel bars 5 in the steel mesh are passed through the straight thread sleeve 4. In this way, the post-cast floor slab layer can be connected to the cast-in-place inner wall 2 as a whole through the straight thread sleeve 4, thereby improving the structural strength of the post-cast floor slab layer, improving the structural strength of the prefabricated basement system 100, and improving the reliability of the prefabricated basement system 100.

[0058] Reference Figure 6 According to some embodiments of the present invention, the precast floor 3 defines a hollow cavity 311, for example, the hollow cavity 311 may be multiple cavities arranged along the first direction, and the precast floor 3 is set as a hollow cavity 311 structure, which is conducive to the drying and molding of the precast floor 3 and shortens the molding cycle of the precast floor 3. The portion of the outer leaf wall 11 extending upward from the inner leaf wall 12 is the first pouring portion 112, and the precast floor 3 is spaced from the first pouring portion 112 in the second direction. When pouring the floor pouring cavity 33, the concrete slurry can flow into the hollow cavity 311, so that the portion of the precast floor 3 pressed in the outer leaf cavity is formed into a solid structure, which effectively improves the compressive strength of the precast floor 3 and further improves the reliability of the prefabricated basement system 100. In addition, the continuous cavity and the floor pouring cavity 33 can be integrally poured, so that the post-cast interlayer and the post-cast floor layer are integrally formed, which improves the sealing performance of the prefabricated basement system 100 and improves the structural strength of the prefabricated basement system 100.

[0059] The portion of the cast-in-place interior wall 2 above the supporting boss 21 is the second pouring portion 22, and the precast floor slab 3 is spaced apart from the second pouring portion 22 in the second direction. When pouring the floor slab pouring cavity 33, the concrete slurry can flow into the hollow cavity 311, so that the portion of the precast floor slab 3 pressed on the supporting boss 21 forms a solid structure, effectively improving the compressive resistance of the precast floor slab 3 and further improving the reliability of the prefabricated basement system 100.

[0060] According to some embodiments of the present invention, a block for blocking the hollow cavity 311 is provided in the hollow cavity 311, and the interval between the block and the opening of the hollow cavity 311 in the second direction is greater than or equal to 500 mm and less than or equal to 1000 mm. For example, the interval between the block and the opening of the hollow cavity 311 in the second direction can be 500 mm, 550 mm, 600 mm, 650 mm, 700 mm, 750 mm, 800 mm, 850 mm, 900 mm, 950 mm, 1000 mm. In this way, while ensuring that the prefabricated floor slab 3 has sufficient pressure resistance, the amount of concrete slurry flowing into the hollow cavity 311 is not too much, thereby reducing the construction cost of the prefabricated basement system 100. For example, the block can be a foam piece to further reduce the construction cost of the prefabricated basement system 100.

[0061] Reference Figure 6 According to some embodiments of the present invention, the prefabricated floor 3 includes a main body 31 and a lug 32. From bottom to top, the main body 31 gradually decreases in size in the first direction, that is, both side surfaces of the main body 31 are inclined inwardly, for example, a hollow cavity 311 may be provided in the main body 31. When the prefabricated floor 3 is made by a mold, it is convenient to demould the prefabricated floor 3.

[0062] The ears 32 are connected to both sides of the main body 31 in the first direction, and the ears 32 are connected to the lower side of the main body 31. The height of the ears 32 is less than the height of the main body 31. For example, the ratio of the height of the ears 32 to the height of the main body 31 can be less than or equal to 0.5. The ears 32 of two adjacent prefabricated floor slabs 3 abut against each other in the first direction.

[0063] After pouring the concrete slurry into the floor pouring cavity 33, the portion of the post-cast floor layer between two adjacent main parts 31 can be larger in the first direction, so that the structural strength of the post-cast floor layer between the two adjacent main parts 31 can be higher, which can effectively reduce the risk of cracking of the post-cast floor layer between the two main parts 31, improve the structural strength of the post-cast floor layer, improve the reliability of the post-cast floor layer, ensure the structural strength and waterproof performance of the basement exterior wall, and improve the overall performance of the prefabricated basement system 100.

[0064] Reference Figure 1-Figure 3 According to the construction method of the second embodiment of the present invention, for constructing the assembled basement system 100 according to the first embodiment of the present invention, the construction method comprises:

[0065] Production of prefabricated exterior walls1;

[0066] Production of prefabricated floor slabs3;

[0067] Make a cast-in-place inner wall 2, and embed a straight thread sleeve 4 above the supporting boss 21;

[0068] Install the prefabricated exterior wall 1 and build the diagonal braces of the prefabricated exterior wall 1;

[0069] Blocking the gap between two adjacent inner leaf walls 12;

[0070] Installation of prefabricated floor slabs 3;

[0071] Tie the steel mesh in the floor slab casting cavity 33;

[0072] Blocking the gap of the floor slab pouring cavity 33;

[0073] pouring concrete slurry into the interlayer cavity 15;

[0074] Concrete slurry is poured into the floor slab pouring cavity 33 .

[0075] When constructing the prefabricated basement system 100, the prefabricated exterior wall 1 and the prefabricated floor 3 can be made while pouring the cast-in-place interior wall 2. After the prefabricated exterior wall 1 is formed, the prefabricated exterior wall 1 can be placed at the basement exterior wall position of the prefabricated basement system 100, and the outer leaf wall 11 of the prefabricated exterior wall 1 is set toward the outside. Then, mold support is performed at the gap between two adjacent inner leaf walls 12, and concrete slurry is poured into the interlayer cavity 15. After forming, the interlayer is cast. Thereafter, the prefabricated floor 3 is placed on the inner leaf wall 12 and the supporting boss 21, and mold support is performed on the gap in the horizontal direction of the floor pouring cavity 33. Concrete slurry is poured into the floor pouring cavity 33. After forming, the floor layer is cast.

[0076] By providing the prefabricated exterior wall 1 and the prefabricated floor slab 3, the prefabricated exterior wall 1 and the prefabricated floor slab 3 can be manufactured while the cast-in-place interior wall 2 is being poured, thereby realizing the separate and cross-operation of the various parts of the prefabricated basement system 100, shortening the construction period of the prefabricated basement system 100, and reducing the construction cost of the prefabricated basement system 100.

[0077] By having a prefabricated outer wall 1 with an outer leaf wall 11 and an inner leaf wall 12, and setting the outer leaf wall 11 to extend out of the inner leaf wall 12 in the second direction, the outer leaf wall 11 can be used as a support mold for the outer wall of the basement without removal. When pouring the post-cast interlayer, support can be provided only at the gap between two adjacent inner leaf walls 12, thereby reducing the number of support molds used and improving construction efficiency. Moreover, by abutting two adjacent outer leaf walls 11 together, the gap between the two adjacent outer leaf walls 11 can be made smaller, reducing the risk of groundwater extending into the basement from the gap between the two adjacent outer leaf walls 11. The post-cast interlayer can also play a sealing role, further improving the sealing effect of the outer wall of the basement.

[0078] Reference Figure 1-Figure 3According to the construction method of the present invention, by utilizing the above-mentioned prefabricated exterior wall 1 to splice as the exterior wall of the basement, support can be performed only at the gap between two adjacent inner leaf walls 12, thereby reducing the number of support molds used and improving construction efficiency. Moreover, the portion of the post-cast interlayer between the two adjacent inner leaf walls 12 can be made larger in the first direction, and the structural strength of the post-cast interlayer between the two adjacent inner leaf walls 12 can be made higher, thereby ensuring the structural strength and waterproof performance of the prefabricated exterior wall 1 and improving the overall performance of the prefabricated basement system 100. Moreover, the prefabricated exterior wall 1 and the prefabricated floor slab 3 can be manufactured at the same time as the cast-in-place interior wall 2 is cast, thereby realizing the split and cross-operation of various parts of the prefabricated basement system 100, shortening the construction period of the prefabricated basement system 100 and reducing the construction cost of the prefabricated basement system 100.

[0079] According to some embodiments of the present invention, one end of the prefabricated floor slab 3 close to the outer leaf wall 11 in the second direction is the first end, and the other end is the second end; the construction method includes:

[0080] When installing the prefabricated floor 3, the first end is spaced apart from the outer leaf wall 11, and the second end is spaced apart from the upper portion of the cast-in-place inner wall 2 located on the supporting boss 21;

[0081] The interlayer cavity 15 and the floor slab cavity 33 are cast in one piece.

[0082] When constructing the prefabricated basement system 100, the prefabricated exterior wall 1 and the prefabricated floor 3 can be made while pouring the cast-in-place interior wall 2. After the prefabricated exterior wall 1 is formed, the prefabricated exterior wall 1 can be placed at the exterior wall position of the basement of the prefabricated basement system 100, and the outer leaf wall 11 of the prefabricated exterior wall 1 is set toward the outside, and then the mold support is performed at the gap between two adjacent inner leaf walls 12, and then the prefabricated floor 3 is placed on the inner leaf wall 12 and the support boss 21, and the mold support is performed on the gap in the horizontal direction of the floor casting cavity 33, and concrete slurry is poured into the interlayer cavity 15 and the floor casting cavity 33, and the post-cast interlayer and the post-cast floor layer are integrally formed. In this way, the sealing performance of the prefabricated basement system 100 can be improved, and the structural strength of the prefabricated basement system 100 can be improved.

[0083] In the description of the present invention, it is to be understood that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0084] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0086] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An assembled basement system, characterized in that: include: A plurality of prefabricated exterior walls arranged along a first direction, each of the prefabricated exterior walls comprising an outer leaf wall and an inner leaf wall spaced apart along a second direction, the outer leaf wall and the inner leaf wall being connected as a whole by a steel truss, a sandwich cavity being defined between the outer leaf wall and the inner leaf wall, the outer leaf wall extending upwardly from the inner leaf wall, both sides of the outer leaf wall in the first direction extending from the corresponding sides of the inner leaf wall in the first direction, and the outer leaf cavities of two adjacent prefabricated exterior walls abutting against each other in the first direction; A cast-in-place inner wall is arranged on a side of the inner leaf wall away from the outer leaf wall and has a supporting boss protruding toward the prefabricated outer wall; A prefabricated floor slab is placed on the inner leaf wall and the supporting boss, and the outer leaf wall, the cast-in-place inner wall and the prefabricated floor slab together define a floor slab casting cavity above the prefabricated floor slab; A post-cast interlayer is filled into the interlayer cavity by pouring; The post-cast floor slab layer is filled into the floor slab casting cavity by pouring; The first direction is perpendicular to the second direction.

2. The assembled basement system according to claim 1, characterized in that: The portion of the outer leaf wall extending out of the inner leaf wall in the first direction is a water stop portion, and a size of the water stop portion in the first direction is greater than or equal to 150 mm and less than or equal to 250 mm.

3. The assembled basement system according to claim 1, characterized in that: The portion of the outer leaf wall extending out of the inner leaf wall in the first direction is a water stop portion, and the prefabricated outer wall further includes a water stop plate, which is connected to the water stop portion.

4. The assembled basement system according to claim 3, characterized in that: The water stop plate is wave-shaped.

5. The assembled basement system according to claim 1, characterized in that: The cast-in-place inner wall is pre-buried with a straight threaded sleeve in the portion above the supporting boss, a steel mesh is provided in the floor slab casting cavity, and the reinforcing steel bars in the steel mesh are passed through the straight threaded sleeve.

6. The assembled basement system according to claim 1, characterized in that: The prefabricated floor slab defines a hollow cavity, and the portion of the outer leaf wall extending upward from the inner leaf wall is the first casting portion, and the prefabricated floor slab is spaced apart from the first casting portion in the second direction; the portion of the cast-in-place inner wall above the supporting boss is the second casting portion, and the prefabricated floor slab is spaced apart from the second casting portion in the second direction.

7. The assembled basement system according to claim 6, characterized in that: A block for blocking the hollow cavity is arranged in the hollow cavity, and the interval between the block and the opening of the hollow cavity in the second direction is greater than or equal to 500 mm and less than or equal to 1000 mm.

8. The assembled basement system according to claim 1, characterized in that: The prefabricated floor slab includes a main body and a cantilever. From bottom to top, the main body gradually decreases in size in the first direction. The cantilever is connected to both sides of the main body in the first direction. The cantilever is connected to the lower side of the main body. The height of the cantilever is less than the height of the main body. The cantilever of two adjacent prefabricated floor slabs abuts in the first direction.

9. A construction method, characterized in that: For constructing a prefabricated basement system according to any one of claims 1 to 8, the construction method comprises: producing the prefabricated exterior wall; producing the prefabricated floor slab; Producing the cast-in-place inner wall, and pre-embedding a straight threaded sleeve above the supporting boss; Install the prefabricated exterior wall and build diagonal braces for the prefabricated exterior wall; Blocking the gap between two adjacent inner leaf walls; pouring concrete slurry into the interlayer cavity; installing the prefabricated floor slab; tying a steel mesh frame in the floor slab casting cavity; Blocking the gap of the floor slab casting cavity; Concrete slurry is poured into the floor slab pouring cavity.

10. The construction method according to claim 9, characterized in that: The end of the prefabricated floor slab close to the outer leaf wall in the second direction is a first end, and the other end is a second end; the construction method comprises: When installing the prefabricated floor slab, the first end is spaced apart from the outer leaf wall, and the second end is spaced apart from the part of the cast-in-place inner wall located above the supporting boss; The interlayer cavity and the floor slab casting cavity are cast in one piece.

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