A basement post-cast strip structure and its construction method

Abstract

This invention discloses a post-cast strip structure for basements, including a pit or trench. The pit or trench contains a concrete cushion layer, on which a waterproof layer is laid. A water-stop caulking plate is laid on the waterproof layer. Positioning structures are symmetrically arranged on both sides of the water-stop caulking plate. Each positioning structure is equipped with a supporting screw. Several supporting screws are present. A water-stop steel plate is sleeved on every two supporting screws. Each water-stop steel plate is fixed by a sealing structure. A supporting structure is installed on each sealing structure. A water-pressure-resistant pad covers the waterproof layer, and a reinforcing structure is provided within the water-pressure-resistant pad. This invention utilizes positioning structures, sealing structures, supporting structures, and reinforcing structures, along with the auxiliary water-stop steel plate, to form a continuous and tight waterproof sealing structure, effectively preventing groundwater infiltration and protecting the underground portion of the building from water damage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of basement construction waterproofing, in particular to a basement post-cast strip structure and a construction method thereof. BACKGROUND

[0002] At present, as an important part of a building, the waterproofing of a basement directly relates to the structural safety of the building. Once the basement has a leakage problem, the ground soil will lose the supporting effect, resulting in serious consequences such as sinking and tilting of the building. The basement post-cast strip is part of the lower structure of the basement, which plays a role in preventing harmful cracks in the cast-in-place reinforced concrete structure due to uneven shrinkage or uneven settlement during construction. Therefore, the waterproofing of the basement post-cast strip is critical.

[0003] At present, there are many problems in the waterproofing treatment of the basement post-cast strip. The water stop steel plate is designed improperly, and the water stop steel plate that is only bent downward cannot effectively block the water flow. Therefore, the present application provides a basement post-cast strip structure and a construction method thereof. SUMMARY

[0004] 1. Technical problem to be solved by the application

[0005] The purpose of the present application is to overcome the problems of the existing basement post-cast strip waterproofing treatment, particularly the problem that the post-cast strip water stop plate cannot effectively prevent water flow, and to provide a basement post-cast strip structure and a construction method thereof. The present application uses positioning structures, plugging structures, support structures, and reinforcing structures to assist the water stop steel plate, thereby forming a continuous and tight waterproof plugging structure to effectively prevent the penetration of groundwater and protect the underground part of the building from water damage.

[0006] 2. Technical solution

[0007] To achieve the above-mentioned purpose, the technical solution provided by the present application is as follows:

[0008] A basement post-cast strip structure, comprising a pit groove, characterized in that: a concrete cushion layer is arranged in the pit groove, a waterproof layer is arranged on the concrete cushion layer, a water stop caulking plate is arranged on the waterproof layer, positioning structures are symmetrically arranged on both sides of the water stop caulking plate, a support screw is installed on each positioning structure, there are a plurality of support screws, a water stop steel plate is sleeved on every two support screws, each water stop steel plate is fixed by a plugging structure, a support structure is installed on each plugging structure, a water pressure resisting cushion layer is arranged on the waterproof layer, and a reinforcing structure is arranged in the water pressure resisting cushion layer.

[0009] As a further improvement of the application, the reinforcing structure comprises bent reinforcing bars, first cushion reinforcing bars, second cushion reinforcing bars and third cushion reinforcing bars, all of which are a plurality of; a plurality of the bent reinforcing bars are horizontally arranged above the waterproof layer, the first cushion reinforcing bars are vertically arranged on the bent reinforcing bars, a plurality of the second cushion reinforcing bars are horizontally arranged on the waterproof layer, and a plurality of the third cushion reinforcing bars are vertically arranged on the second cushion reinforcing bars; the bent reinforcing bars, the first cushion reinforcing bars, the second cushion reinforcing bars and the third cushion reinforcing bars are all laid in the water pressure resisting cushion layer.

[0010] As a further improvement of the application, the positioning structure comprises water stop caulking boards, positioning screws, L-shaped positioning reinforcing bars, positioning steel plates, guide seats and embedded sleeves, the water stop caulking boards are provided with a plurality of insertion grooves, one end of a plurality of the positioning screws is vertically inserted into the insertion grooves, the bottom of the positioning screws is horizontally fixedly installed with horizontal rods of the L-shaped positioning reinforcing bars, the vertical rods of the L-shaped positioning reinforcing bars are movably connected with the upper positioning steel plates installed on the bent reinforcing bars, both ends of each of the positioning steel plates are sleeved on three adjacent bent reinforcing bars, two embedded sleeves are symmetrically installed on the upper part of the positioning steel plates, and the positioning steel plates and the embedded sleeves are all located in the water pressure resisting cushion layer.

[0011] As a further improvement of the application, the lower part of each of the positioning steel plates is symmetrically provided with a guide seat, each of the positioning steel plates is movably sleeved on the corresponding bent reinforcing bars through two guide seats, and the inner wall of the embedded sleeve is provided with a threaded mounting hole.

[0012] As a further improvement of the application, the inner wall of the guide seat is provided with a mounting hole, the bent reinforcing bar passes through the mounting hole and is connected with the guide seat, one side of the positioning steel plate is symmetrically provided with a protruding arc-shaped plate, each of the arc-shaped plates is provided with an insertion hole, and the vertical rod of the L-shaped positioning reinforcing bar is inserted into the insertion hole.

[0013] As a further improvement of the present application, the sealing structure comprises a first support plate, a second support plate, a third support plate and a fourth support plate, the bottom end of the support screw is threadedly installed in the threaded mounting hole, each of the first support plate, the second support plate, the third support plate and the fourth support plate is sequentially sleeved on two support screws, the water stop steel plate is folded downward on both sides, the upper surface of the downward folding is the water-facing surface, the lower surface of the downward folding is the water-backing surface, two second positioning holes are formed on each water stop steel plate, a first positioning hole is formed on each of the first support plate and the third support plate, the first positioning hole is symmetrically provided with two holes, a square boss is provided on the first positioning hole for positioning the hole position, a first positioning hole is formed on each of the second support plate and the fourth support plate, the first positioning hole is symmetrically provided with two holes, a square boss is provided on the first positioning hole for positioning the hole position, each of the first support plate, the second support plate, the water stop steel plate, the third support plate and the fourth support plate is sequentially sleeved on each two support screws, each of the first support plate is fixed by two first nuts, each of the second support plate is fixed by two second nuts, each of the third support plate is fixed by two third nuts, and the upper and lower parts of each of the fourth support plate is fixed by two fourth nuts.

[0014] As a further improvement of the present application, a steel mesh connecting plate is fixedly installed on one side of each of the first support plate, the second support plate, the third support plate and the fourth support plate, a steel wire hole is formed on the steel mesh connecting plate, a sealing steel mesh is installed on the steel mesh connecting plate of each of the first support plate and the second support plate, a sealing steel mesh is installed on the steel mesh connecting plate of each of the third support plate and the fourth support plate, and a plurality of steel wire holes for fixing the sealing steel mesh are formed on each steel mesh connecting plate; the steel mesh connecting plates and the sealing steel meshes of the sealing structures on both sides are correspondingly provided, and the steel mesh connecting plates and the sealing steel meshes are provided on the outer side of the sealing structure.

[0015] As a further improvement of the present application, the support structure comprises a support inclined rod and a fixing nut, one end of the support inclined rod is an upper horizontal end, a sleeve hole is formed in the middle of the upper horizontal end, and the sleeve hole is movably sleeved on the support screw; the other end of the support inclined rod is a lower horizontal end, a support hole is formed in the middle of the lower horizontal end, the support hole is movably sleeved on the top of the positioning screw, and the lower horizontal end is fixed by the fixing nut; the upper horizontal end is higher than the lower horizontal end.

[0016] As a further improvement of the present application, the upper horizontal end is located between the first support plate and the second support plate, and the lower horizontal end is closely attached to the water pressure resisting cushion layer.

[0017] A construction method of a basement post-cast strip structure, the specific steps are:

[0018] S1: lay out the foundation and open a pit, then pour a concrete cushion on the pit, and lay a waterproof layer on the surface of the concrete cushion;

[0019] S2: cross tie the first cushion reinforcement with the bent reinforcement in the pit of the waterproof layer with iron wire, and cross tie the second cushion reinforcement and the third cushion reinforcement on the surface of the waterproof layer with iron wire;

[0020] S3: lay a water stop caulking plate in the pit of the waterproof layer, so that the water stop caulking plate is located between the bent reinforcement on both sides, the positioning steel plate is sleeved on the corresponding bent reinforcement, each positioning steel plate is sleeved with three bent reinforcement, the bottom end of the positioning screw is inserted into the insertion slot on the water stop caulking plate, the vertical rod of the L-shaped positioning reinforcement is inserted through the insertion hole, the position of the guide seat is limited, then the threaded mounting hole is plugged with a wooden plug, and a water pressure resistant cushion is poured, one end of each embedded sleeve and the positioning screw protrudes from the surface of the water pressure resistant cushion, and after the water pressure resistant cushion is solidified, the wooden plug plugging the threaded mounting hole is removed;

[0021] S4: screw the supporting screw into the corresponding threaded mounting hole, then sleeve each first supporting plate on every two supporting screws, so that the panel of the first supporting plate is in contact with the upper surface of the water pressure resistant cushion, then screw the first nut on the supporting screw to fix the position of the first supporting plate, then sleeve the two ends of each supporting inclined rod on the supporting screw and the positioning screw, and then screw the fixing nut on the positioning screw to fix the position of the supporting inclined rod, so as to provide support for the supporting screw;

[0022] S5: screw each second nut to a certain height of the supporting screw, then sleeve each second supporting plate on every two supporting screws corresponding to each first supporting plate, the second nut can support the water stop steel plate, then install each water stop steel plate on every two supporting screws corresponding to each second supporting plate, so that the end of the water surface of the water stop steel plate faces the water pressure resistant cushion, then sleeve each third supporting plate on every two supporting screws corresponding to each water stop steel plate, screw the third nut on each third supporting plate to fix, then install two fourth nuts and the corresponding fourth supporting plate on each two supporting screws, the other side of each fourth supporting plate is also screwed into the fourth nut to fix, and the distance between the two groups of steel mesh connecting plates can be adjusted by rotating the second nut and the third nut at different positions, so that the distance between the two groups of steel mesh connecting plates remains consistent;

[0023] S6: Utilize the iron wire to pass through the steel wire hole on the corresponding steel mesh connecting plate to bind or weld the corresponding length of the blocking steel mesh;

[0024] S7: Tie the steel bars on the side away from the two side blocking steel meshes and pour the concrete to form the basement floor, so that the middle region of the two side blocking steel meshes forms a post-poured band.

[0025] 3. Beneficial effects

[0026] Compared with the prior art, the technical scheme provided by the present application has the following beneficial effects:

[0027] (1) The present application utilizes the pre-buried sleeve to provide connection for the blocking structure. During construction, the bent steel bars and the water stop joint boards can be laid in the pit of the waterproof layer first, then the positioning steel plate is sleeved on the corresponding bent steel bars, and the position of the positioning steel plate is limited by the positioning screw and the L-shaped positioning steel bar, so that the preliminary positioning of the pre-buried sleeve is completed. The pre-buried sleeve does not need to be welded or bound with steel wire for fixation. When pouring the water pressure resisting cushion layer, the position of the positioning steel plate and the pre-buried sleeve can be prevented from being deviated during pouring under the support of the bent steel bars and the positioning of the positioning screw and the L-shaped positioning steel bar, thereby improving the accuracy of the position of the pre-buried sleeve and the stability during subsequent use.

[0028] (2) During construction of the blocking structure, the pre-buried sleeve can be poured into the water pressure resisting cushion layer, the support screw is screwed into the threaded mounting hole on the pre-buried sleeve, and then the first support plate, the second support plate, the third support plate, the fourth support plate and the water stop steel plate are sequentially sleeved on the support screw. The water stop steel plate is located between the second support plate and the third support plate, and the four support plates can be fixed by the first nut, the second nut and the third nut, thereby fixing the position of the water stop steel plate. The distance between the two groups of steel mesh connecting plates can be adjusted by rotating the second nut and the third nut at the corresponding position, thereby adjusting the height of the water stop steel plate, so that the water stop steel plate is in an adjustable state. The operation is simple, and the blocking structure is arranged in a threaded splicing manner, which can avoid the tedious adjustment process caused by the height deviation of the water stop steel plate after being fixed by welding or binding with steel wire. After adjustment, the blocking steel mesh can be bound or welded between the adjacent two steel mesh connecting plates by using the iron wire.

[0029] (3) By sleeving the support inclined rod on the support screw and fixing it by using the fixing nut, the support inclined rod can provide support for the support screw, which can further improve the stability of the two side support screws and the water stop steel plate during pouring of the basement floor, and prevent the blocking steel mesh and the water stop steel plate from being tilted during pouring. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structural schematic view of a basement post-poured band structure and a construction method thereof.

[0031] Figure 2 A water stop caulking plate structure diagram of a basement post-pouring belt structure and a construction method thereof according to the present application;

[0032] Figure 3 A positioning steel plate structure diagram of a basement post-pouring belt structure and a construction method thereof according to the present application;

[0033] Figure 4 A support screw connecting structure diagram of a basement post-pouring belt structure and a construction method thereof according to the present application;

[0034] Figure 5 A support screw section structure diagram of a basement post-pouring belt structure and a construction method thereof according to the present application;

[0035] Figure 6 A steel mesh connecting plate structure diagram of a basement post-pouring belt structure and a construction method thereof according to the present application;

[0036] Figure 7 A support inclined rod structure diagram of a basement post-pouring belt structure and a construction method thereof according to the present application;

[0037] Figure 8 A water stop steel plate structure diagram of a basement post-pouring belt structure and a construction method thereof according to the present application.

[0038] In the figure: 1, pit groove; 2, concrete cushion layer; 3, waterproof layer; 4, water pressure resistance cushion layer; 41, bent reinforcing steel bar; 42, first cushion layer reinforcing steel bar; 43, second cushion layer reinforcing steel bar; 44, third cushion layer reinforcing steel bar; 5, water stop caulking plate; 51, positioning screw; 52, L-shaped positioning reinforcing steel bar; 53, positioning steel plate; 54, guide seat; 55, insertion hole; 56, pre-buried sleeve; 57, insertion slot; 58, threaded mounting hole; 59, mounting hole; 6, support screw; 61, first support plate; 62, second support plate; 63, third support plate; 64, fourth support plate; 65, water stop steel plate; 66, first nut; 67, second nut; 671, third nut; 68, fourth nut; 69, steel mesh connecting plate; 610, plugging steel mesh; 611, first positioning hole; 612, second positioning hole; 613, steel wire hole; 7, support inclined rod; 71, fixed nut; 72, sleeving hole; 73, support hole. DETAILED DESCRIPTION

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1

[0041] like Figures 1 to 8 As shown in the figure, a basement post-cast strip structure of this embodiment includes a pit 1; characterized in that: a concrete cushion layer 2 is provided in the pit 1, a waterproof layer 3 is provided on the concrete cushion layer 2, a water-stop caulking plate 5 is provided on the waterproof layer 3, positioning structures are symmetrically arranged on both sides of the water-stop caulking plate 5, a support screw 6 is installed on each positioning structure, there are several support screws 6, a water-stop steel plate 65 is sleeved on every two support screws 6, each water-stop steel plate 65 is fixed by a sealing structure, a support structure is installed on each sealing structure, a water pressure resistant pad 4 is covered on the waterproof layer 3, and a reinforcement structure is provided in the water pressure resistant pad 4.

[0042] In a preferred embodiment, the reinforcement structure includes bent reinforcing bars 41, first cushion reinforcing bars 42, second cushion reinforcing bars 43, and third cushion reinforcing bars 44, each consisting of a plurality of bent reinforcing bars 41, first cushion reinforcing bars 42, second cushion reinforcing bars 43, and third cushion reinforcing bars 44. The plurality of bent reinforcing bars 41 are horizontally arranged above the waterproof layer 3, with the first cushion reinforcing bars 42 arranged longitudinally on the bent reinforcing bars 41. The waterproof layer 3 has a plurality of second cushion reinforcing bars 43 horizontally arranged, and the second cushion reinforcing bars 43 have a plurality of third cushion reinforcing bars 44 arranged longitudinally on them. The bent reinforcing bars 41, first cushion reinforcing bars 42, second cushion reinforcing bars 43, and third cushion reinforcing bars 44 are all laid within the water-pressure resistant cushion layer 4. The bent reinforcing bars 41 include multiple bent sections, with one end near the water-stop caulking plate 5 bent to form a horizontal "U"-shaped reinforcing bar. The length of the upper reinforcing bar of the horizontal "U"-shaped reinforcing bar is shorter than the length of the lower reinforcing bar, and the extended section of the lower reinforcing bar extends upwards close to the waterproof layer within the pit.

[0043] Preferably, the positioning structure comprises a water-stop joint board 5, positioning screws 51, L-shaped positioning steel bars 52, positioning steel plates 53, guide seats 54 and embedded sleeves 56, the water-stop joint board 5 is provided with a plurality of insertion grooves 57, one end of each of the positioning screws 51 is vertically inserted into the insertion grooves 57, the L-shaped positioning steel bars 52 are horizontally fixedly installed at the bottom of the positioning screws 51, the vertical bars of the L-shaped positioning steel bars 52 are movably connected to the upper positioning steel plates 53 installed on the bent steel bars 41, the two ends of each of the positioning steel plates 53 are sleeved on three adjacent bent steel bars 41, two embedded sleeves 56 are symmetrically installed on the upper part of each of the positioning steel plates 53, and the positioning steel plates 53 and the embedded sleeves 56 are located in the water pressure-resistant cushion layer 4.

[0044] Preferably, the lower part of each of the positioning steel plates 53 is symmetrically provided with a guide seat 54, each of the positioning steel plates 53 is movably sleeved on the corresponding bent steel bar 41 by the two guide seats 54, and the inner wall of each of the embedded sleeves 56 is provided with a threaded mounting hole 58.

[0045] Preferably, the inner wall of the guide seat 54 is provided with a mounting hole 59, the bent steel bar 41 passes through the mounting hole 59 and is connected to the guide seat 54, one side of the positioning steel plate 53 is symmetrically provided with a protruding arc-shaped plate, an insertion hole 55 is formed in each of the arc-shaped plates, and the vertical bar of the L-shaped positioning steel bar 52 is inserted into the insertion hole 55.

[0046] In the embodiment, the embedded sleeves can provide connection for the plugging structure, in construction, the bent steel bars and the water-stop joint boards can be laid in the pits of the waterproof layer first, then the positioning steel plates are sleeved on the corresponding bent steel bars, the positions of the positioning steel plates are limited by the positioning screws and the L-shaped positioning steel bars, thereby the preliminary positioning of the embedded sleeves is completed, the embedded sleeves do not need to be welded or bound by steel wires for fixation, and in subsequent pouring of the water pressure-resistant cushion layer, the positions of the positioning steel plates and the embedded sleeves can be prevented from being deviated in pouring under the support of the bent steel bars and the positioning of the positioning screws and the L-shaped positioning steel bars, thereby the accuracy of the positions of the embedded sleeves and the stability in subsequent use are improved.

[0047] In the construction of the plugging structure in this embodiment, the embedded sleeve can be first poured in the water pressure resistant cushion layer, the support screw rod is screwed into the threaded mounting hole on the embedded sleeve, the first support plate, the second support plate, the third support plate, the fourth support plate and the water stop steel plate are sequentially sleeved on the support screw rod, the water stop steel plate is located between the second support plate and the third support plate, and the four support plates can be respectively fixed by the first nut, the second nut and the third nut, thereby fixing the position of the water stop steel plate. The spacing between the two groups of steel mesh connecting plates can be adjusted by rotating the second nut and the third nut at the corresponding position, thereby adjusting the height of the water stop steel plate, so that the water stop steel plate is in an adjustable state. The operation is simple, the plugging structure is arranged in a threaded splicing manner, and the height deviation after the water stop steel plate is fixed by welding or binding steel wire can be avoided, so that the adjustment process is complicated. After adjustment, the adjacent two steel mesh connecting plates can be bound or welded by using iron wire.

[0048] In this embodiment, the support inclined rod is sleeved on the support screw rod and fixed by the fixing nut, so that the support inclined rod provides support for the support screw rod, which can further improve the stability of the two side support screw rods and the water stop steel plate during pouring of the basement floor, and prevent the plugging steel mesh and the water stop steel plate from being skewed during pouring.

[0049] Embodiment 2

[0050] As shown in Figures 1 to 8 The present embodiment is basically the same as embodiment 1, and preferably, in order to reduce the difficulty of setting the plugging structure, the height of the water stop steel plate 65 is adjustable, and the plugging structure is arranged on the support screw rod 6.

[0051] The plugging structure in the embodiment comprises a first support plate 61, a second support plate 62, a third support plate 63 and a fourth support plate 64, the bottom end of the support screw 6 is threadedly installed in the threaded installation hole 58, each of the first support plate 61, the second support plate 62, the third support plate 63 and the fourth support plate 64 is sequentially sleeved on two support screws 6, the two sides of the water stop steel plate 65 are downwardly and obliquely bent, the upper surface of the downwardly and obliquely bent part is a water-facing surface, the lower surface of the downwardly and obliquely bent part is a backwater surface, two second positioning holes 612 are formed in each water stop steel plate 65, a first positioning hole 611 is formed in each of the first support plate 61 and the third support plate 63, the first positioning hole 611 is symmetrically provided with two holes, a square boss for positioning the hole position is upwardly arranged on the first positioning hole 611, a first positioning hole 611 is formed in each of the second support plate 62 and the fourth support plate 64, the first positioning hole 611 is symmetrically provided with two holes, a square boss for positioning the hole position is downwardly arranged on the first positioning hole 611, each of the first support plate 61, the second support plate 62, the water stop steel plate 65, the third support plate 63 and the fourth support plate 64 is sequentially sleeved on each two support screws 6, each first support plate 61 is fixed by two first nuts 66, each second support plate 62 is fixed by two second nuts 67, each third support plate 63 is fixed by two third nuts 671, and the upper part and the lower part of each fourth support plate 64 are fixed by two fourth nuts 68.

[0052] In the preferred embodiment, the first support plate 61, the second support plate 62, the third support plate 63 and the fourth support plate 64 are fixedly installed with a steel mesh connecting plate 69 on one side, a steel wire hole 613 is formed in the steel mesh connecting plate 69, a plugging steel mesh 610 is installed on the steel mesh connecting plate 69 of each first support plate 61 and the steel mesh connecting plate 69 of each second support plate 62, a plugging steel mesh 610 is installed on the steel mesh connecting plate 69 of each third support plate 63 and the steel mesh connecting plate 69 of each fourth support plate 64, and a plurality of steel wire holes 613 for fixing the plugging steel mesh 610 are formed in each steel mesh connecting plate 69; the steel mesh connecting plate 69 and the plugging steel mesh 610 of the plugging structure on the two sides are correspondingly arranged, and the steel mesh connecting plate 69 and the plugging steel mesh 610 are arranged on the outer side of the plugging structure.

[0053] The pre-embedded sleeve can provide connection for the plugging structure. During construction, the bent reinforcing bars and the water stop caulking plate can be laid in the pit of the waterproof layer first, then the positioning steel plate is sleeved on the corresponding bent reinforcing bar, the position of the positioning steel plate is limited by the positioning screw and the L-shaped positioning reinforcing bar, thereby the preliminary positioning of the pre-embedded sleeve is completed, and the pre-embedded sleeve does not need to be welded or bundled with steel wires for fixing. When pouring the water pressure resisting cushion layer, the position of the positioning steel plate and the pre-embedded sleeve can be prevented from being deviated during pouring under the support of the bent reinforcing bar and the positioning of the positioning screw and the L-shaped positioning reinforcing bar, thereby the accuracy of the position of the pre-embedded sleeve and the stability during subsequent use are improved.

[0054] During construction of the plugging structure, the pre-embedded sleeve can be poured into the water pressure resisting cushion layer first, the support screw is screwed into the threaded mounting hole on the pre-embedded sleeve, the first support plate, the second support plate, the third support plate, the fourth support plate and the water stop steel plate are sequentially sleeved on the support screw, the water stop steel plate is located between the second support plate and the third support plate, and the four support plates can be fixed by the first nut, the second nut and the third nut respectively, thereby the position of the water stop steel plate is fixed. The distance between the two groups of steel mesh connecting plates can be adjusted by rotating the second nut and the third nut at the corresponding positions, thereby the height of the water stop steel plate is adjusted, the water stop steel plate is in an adjustable state, the operation is simple, and the plugging structure is arranged in a threaded splicing manner, which can prevent the adjustment process from being complicated due to the deviation of the height of the water stop steel plate after the water stop steel plate is fixed by welding or bundling with steel wires. After adjustment, the plugging steel mesh can be bundled with iron wires or welded between the adjacent two steel mesh connecting plates.

[0055] In the embodiment, the support inclined rod is sleeved on the support screw and fixed by the fixed nut, so that the support inclined rod provides support for the support screw, which can further improve the stability of the support screw and the water stop steel plate during pouring of the basement floor, and prevent the plugging steel mesh and the water stop steel plate from being inclined during pouring.

[0056] Embodiment 3

[0057] As shown in Figures 1 to 8 the embodiment is basically the same as embodiment 1. Preferably, in order to improve the stability of the support screw 6, the support structure includes a support inclined rod 7 and a fixed nut 71. One end of the support inclined rod 7 is an upper horizontal end, and a sleeve hole 72 is formed in the middle of the upper horizontal end. The sleeve hole 72 is movably sleeved on the support screw 6. The other end of the support inclined rod 7 is a lower horizontal end, and a support hole 73 is formed in the middle of the lower horizontal end. The support hole 73 is movably sleeved on the top of the positioning screw 51, and the lower horizontal end is fixed by the fixed nut 71. The upper horizontal end is higher than the lower horizontal end.

[0058] In a preferred embodiment, the upper horizontal end is located between the first support plate 61 and the second support plate 62, and the lower horizontal end is in close contact with the water pressure resistant pad layer.

[0059] This embodiment utilizes a pre-embedded sleeve to provide a connection for the sealing structure. During construction, bent reinforcing bars and water-stop caulking plates are first laid in the pit of the waterproof layer. Then, positioning steel plates are fitted onto the corresponding bent reinforcing bars. Positioning screws and L-shaped positioning reinforcing bars are used to restrict the position of the positioning steel plates, thereby completing the initial positioning of the pre-embedded sleeve. The pre-embedded sleeve does not require welding or binding wire for fixation. When pouring the water pressure-resistant cushion layer, the support of the bent reinforcing bars and the positioning of the positioning screws and L-shaped positioning reinforcing bars can prevent the position of the positioning steel plate and the pre-embedded sleeve from shifting during pouring, thereby improving the accuracy of the pre-embedded sleeve position and the stability during subsequent use.

[0060] In this embodiment, during the construction of the sealing structure, the pre-embedded sleeve is first poured into the water pressure-resistant pad layer. The support screw is then screwed into the threaded mounting hole on the pre-embedded sleeve. The first support plate, the second support plate, the third support plate, the fourth support plate, and the water-stop steel plate are then sequentially mounted on the support screw. The water-stop steel plate is located between the second and third support plates. The four support plates can be fixed with the first nut, the second nut, and the third nut, respectively, thereby fixing the position of the water-stop steel plate. By rotating the second nut and the third nut at the corresponding positions, the spacing between the two sets of steel mesh connecting plates can be adjusted, thereby adjusting the height of the water-stop steel plate, making the water-stop steel plate adjustable. The operation is simple, and the sealing structure is set up by threaded splicing, which can avoid the cumbersome adjustment process caused by height deviation after welding or binding steel wire to fix the water-stop steel plate. After adjustment, the steel mesh can be sealed by binding or welding iron wire between two adjacent steel mesh connecting plates.

[0061] This embodiment uses a support diagonal brace fitted onto the support screw and fixed with a fixing nut. This allows the support diagonal brace to provide support for the support screw, which can further improve the stability of the support screws on both sides and the waterstop steel plate when pouring the basement floor slab, and prevent the sealing steel mesh and waterstop steel plate from tilting during the pouring process.

[0062] Example 4

[0063] like Figures 1 to 8 As shown, this embodiment is basically the same as embodiments 1 to 3. Preferably, a construction method for a basement post-cast strip structure includes the following steps:

[0064] S1: Lay out the foundation lines and open the pit 1, then pour a concrete cushion layer 2 on the pit 1, and lay a waterproof layer 3 on the surface of the concrete cushion layer 2.

[0065] S2: In the pit of waterproof layer 3, cross tie the bent reinforcement 41 and the first cushion reinforcement 42 with iron wire, and cross tie the second cushion reinforcement 43 and the third cushion reinforcement 44 on the surface of the waterproof layer 3 with iron wire;

[0066] S3: Lay the water-stop flashing plate 5 in the pit of the waterproof layer 3, and make the water-stop flashing plate 5 between the bent reinforcements 41 on both sides. Fit the positioning steel plate 53 on the corresponding bent reinforcement 41, and each positioning steel plate 53 is fitted on three corresponding bent reinforcements 41. Insert the bottom end of the positioning screw 51 into the slot 57 on the water-stop flashing plate 5, and at the same time, pass the vertical rod of the L-shaped positioning reinforcement 52 through the insertion hole 55. The position of the guide seat 54 is limited, and then the threaded mounting hole 58 is plugged with a wooden plug and the water pressure resisting cushion layer 4 is poured. One end of each of the pre-buried sleeves 56 exceeds the surface of the water pressure resisting cushion layer 4, and after the water pressure resisting cushion layer 4 is solidified, the wooden plug plugging the threaded mounting hole 58 is removed;

[0067] S4: Install the support screw 6 by screwing it into the corresponding threaded mounting hole 58, and then fit each first support plate 61 on every two support screws 6, so that the panel of the first support plate 61 is in contact with the upper surface of the water pressure resisting cushion layer 4. Then, the position of the first support plate 61 is fixed by screwing the first nut 66 on the support screw 6. Then, the two ends of each support inclined rod 7 are fitted on the support screw 6 and the positioning screw 51 respectively, and the position of the support inclined rod 7 is fixed by screwing the fixing nut 71 on the positioning screw 51 to provide support for the support screw 6;

[0068] S5: Screw each second nut 67 to a certain height of the support screw 6, and then fit each second support plate 62 on every two support screws 6 corresponding to each first support plate 61. The second nut 67 can support the water-stop steel plate 65. Then, install each water-stop steel plate 65 on every two support screws 6 corresponding to each second support plate 62, so that the water-facing surface of the water-stop steel plate 65 faces the water pressure resisting cushion layer 4. Then, fit each third support plate 63 on every two support screws 6 corresponding to each water-stop steel plate 65, and screw the third nut 671 on each third support plate 63 to fix it. Then, install two fourth nuts 68 and the corresponding fourth support plate 64 on every two support screws 6. The other side of each fourth support plate 64 is also screwed into the fourth nut 68 to fix it. By rotating the second nut 67 and the third nut 68 at different positions, the distance between the two groups of steel mesh connecting plates 69 can be adjusted, so that the distance between the two groups of steel mesh connecting plates 69 remains consistent;

[0069] S6: Tie or weld the corresponding length of the blocking steel mesh 610 by passing the iron wire through the wire hole 613 on the corresponding steel mesh connecting plate 69;

[0070] S7: bundle the steel bars on the side away from the two side blocking steel nets 610 and pour concrete to form the basement floor, so that the middle region of the two side blocking steel nets 610 forms a post-poured strip.

[0071] In this embodiment, the pre-buried sleeve can provide connection for the blocking structure. In construction, the bent steel bars and the water stop caulking plate can be laid in the pit of the waterproof layer first, then the positioning steel plate is sleeved on the corresponding bent steel bar, the position of the positioning steel plate is limited by the positioning screw and the L-shaped positioning steel bar, so that the preliminary positioning of the pre-buried sleeve is completed, and the pre-buried sleeve does not need to be welded or bound with steel wire for fixation. When pouring the water pressure resisting cushion layer, the position of the positioning steel plate and the pre-buried sleeve can be prevented from being deviated during pouring under the support of the bent steel bar and the positioning of the positioning screw and the L-shaped positioning steel bar, so that the accuracy of the position of the pre-buried sleeve and the stability during subsequent use are improved.

[0072] In this embodiment, the pre-buried sleeve can be poured into the water pressure resisting cushion layer during construction of the blocking structure, the support screw is screwed into the threaded mounting hole on the pre-buried sleeve, the first support plate, the second support plate, the third support plate, the fourth support plate and the water stop steel plate are sequentially sleeved on the support screw, the water stop steel plate is located between the second support plate and the third support plate, and the four support plates can be fixed by the first nut, the second nut and the third nut, so that the position of the water stop steel plate is fixed. The distance between the two groups of steel net connecting plates can be adjusted by rotating the second nut and the third nut at the corresponding positions, so that the height of the water stop steel plate is adjusted, the water stop steel plate is in an adjustable state, the operation is simple, and the blocking structure is arranged in a threaded splicing manner, so that the adjustment process is complicated due to the deviation of the height of the water stop steel plate after being fixed by welding or binding with steel wire. After adjustment, the blocking steel net can be bound or welded between the adjacent two steel net connecting plates by using the iron wire.

[0073] In this embodiment, the support inclined rod is sleeved on the support screw and fixed by the fixing nut, so that the support inclined rod provides support for the support screw, which can further improve the stability of the two side support screws and the water stop steel plate during pouring of the basement floor, and prevent the blocking steel net and the water stop steel plate from being tilted during pouring.

[0074] Embodiment 5

[0075] As Figures 1 to 8As shown, the embodiment is basically the same as that of Embodiment 1 to Embodiment 3, preferably, a construction method of a basement post-cast strip structure, the specific steps are as follows: during construction, first lay out the foundation and open a pit 1, then cast a concrete cushion layer 2 on the surface of the pit 1, lay a waterproof layer 3 on the surface of the concrete cushion layer 2, the waterproof layer 3 is composed of waterproof coiled material and waterproof cloth, then cross tie a plurality of bent reinforcing bars 41 and first cushion reinforcing bars 42 in the pit of the waterproof layer 3 by iron wire, cross tie a plurality of second cushion reinforcing bars 43 and third cushion reinforcing bars 44 on the surface of the waterproof layer 3 by iron wire, lay a water stop embedded joint plate 5 between the bent reinforcing bars 41 on both sides, wherein cross tie the bent reinforcing bars 41 and the first cushion reinforcing bars 42 by iron wire is a prior art and necessary operation step, the positioning steel plate 53 is sleeved on the corresponding two bent reinforcing bars 41 through the mounting hole 59 on the guide seat 54, one end of the positioning screw 51 is inserted into the insertion slot 57, at the same time, one end of the L-shaped positioning reinforcing bar 52 on the positioning screw 51 is inserted through the insertion hole 55 on the positioning steel plate 53, so as to limit the position of the guide seat 54, then the threaded mounting hole 58 on the embedded sleeve 56 is plugged by a wooden plug, and the water pressure resistant cushion layer 4 is cast, so that the water pressure resistant cushion layer 4 covers the bent reinforcing bars 41 and the second cushion reinforcing bars 43, and one end of the embedded sleeve 56 and the positioning screw 51 exceeds the surface of the water pressure resistant cushion layer 4, after the water pressure resistant cushion layer 4 solidifies, the wooden plug plugging the threaded mounting hole 58 is taken out, a plurality of supporting screws 6 are screwed into the corresponding threaded mounting holes 58 in sequence, the first supporting plate 61 is sleeved on the two supporting screws 6 through the corresponding first positioning hole 611, so that the panel part of the first supporting plate 61 is in contact with the surface of the water pressure resistant cushion layer 4, then the first nut 66 is screwed on the supporting screw 6 and tightly attached to the top side of the first supporting plate 61, so as to fix the position of the first supporting plate 61, one end of the supporting inclined rod 7 is sleeved on the supporting screw 6 through the sleeving hole 72, the other end of the supporting inclined rod 7 is sleeved on the positioning screw 51 through the supporting hole 73, the fixing nut 71 is screwed on one end of the positioning screw 51, so that the fixing nut 71 abuts against one side of the supporting inclined rod 7, so as to fix the position of the supporting inclined rod 7, the supporting inclined rod 7 can provide support for the supporting screw 6, then the second nut 67 is rethreaded to the specified height of the supporting screw 6, the second supporting plate 62 is sleeved on the supporting screw 6, so that the second supporting plate 62 is in contact with the second nut 67, the second nut 67 can provide support for the water stop steel plate 65, then the water stop steel plate 65 is inserted through the second positioning hole 612 on the supporting screw 6, so that the water stop steel plate 65 is in contact with the panel of the second supporting plate 62, and the water-approaching surface of the water stop steel plate 65 faces the water pressure resistant cushion layer 4, then the third supporting plate 63 is sleeved on the supporting screw 6, so that the third supporting plate 63 and the panel of the second supporting plate 62 sandwich the water stop steel plate 65, the second nut 67 is screwed on the supporting screw 6, so that the second nut 67 is in contact with one side of the third supporting plate 63,Further, the two second nuts 67 respectively extrude the second support plate 62 and the third support plate 63 and fix the position of the water stop steel plate 65, then the third nut 68 is screwed on the support screw 6 and the fourth support plate 64 is arranged, the other side of the fourth support plate 64 is also screwed into the third nut 68 to fix the position of the fourth support plate 64, the distance between the second support plate 62 and the first support plate 61 can be adjusted by rotating the second nut 67 and the third nut 68 at the corresponding position, or the distance between the fourth support plate 64 and the third support plate 63 is adjusted, so that the distance between the two groups of steel mesh connecting plates 69 is kept consistent, according to the construction requirement, the corresponding two steel mesh connecting plates 69 are bound or welded by using the iron wire through the corresponding steel wire hole 613 to bind or weld the blocking steel mesh 610 with the corresponding length, at this time, the laying of the blocking structure can be completed, which prevents the concrete from running out of the mold or losing, and the reinforcement is tied on the side away from each other of the two blocking steel meshes 610 and above, and the concrete is poured on the side away from each other of the two blocking steel meshes 610 to form the basement floor, so that the middle area of the two blocking steel meshes 610 forms a post-poured belt, which needs to be placed and maintained during the placement period and covered with a wooden board to prevent foreign matter from entering, and finally the wooden board is removed after maintenance and the post-poured belt area is poured.

[0076] In the embodiment, the pre-embedded sleeve can provide connection for the blocking structure, during construction, the bent reinforcement and the water stop joint plate can be laid in the pit of the waterproof layer, then the positioning steel plate is sleeved on the corresponding bent reinforcement, the position of the positioning steel plate is limited by the positioning screw and the L-shaped positioning reinforcement, so that the preliminary positioning of the pre-embedded sleeve is completed, and the pre-embedded sleeve does not need to be welded or bound with steel wire for fixation, and during pouring of the water pressure resisting cushion layer, the position of the positioning steel plate and the pre-embedded sleeve can be prevented from being deviated during pouring under the support of the bent reinforcement and the positioning of the positioning screw and the L-shaped positioning reinforcement, so that the accuracy of the position of the pre-embedded sleeve and the stability during subsequent use are improved.

[0077] In the embodiment, the pre-embedded sleeve can provide connection for the blocking structure, during construction, the pre-embedded sleeve can be poured in the water pressure resisting cushion layer, the support screw is screwed into the threaded mounting hole on the pre-embedded sleeve, the first support plate, the second support plate, the third support plate, the fourth support plate and the water stop steel plate are sequentially sleeved on the support screw, the water stop steel plate is located between the second support plate and the third support plate, and the four support plates can be respectively fixed by the first nut, the second nut and the third nut, so that the position of the water stop steel plate is fixed, the distance between the two groups of steel mesh connecting plates can be adjusted by rotating the second nut and the third nut at the corresponding position, so that the height of the water stop steel plate is adjusted, the water stop steel plate is in an adjustable state, the operation is simple, the blocking structure is arranged in a threaded splicing manner, the height deviation after the water stop steel plate is fixed by welding or binding with steel wire can be avoided, the adjustment process is complicated, and after adjustment, the blocking steel mesh can be bound or welded between the adjacent two steel mesh connecting plates.

[0078] The embodiment can make the supporting inclined rod provide support for the supporting screw rod, further improve the stability of the two side supporting screw rods and the water stop steel plate during pouring of the basement bottom plate, and prevent the blocking steel mesh and the water stop steel plate from being skewed during pouring.

[0079] The above description of the present application and its embodiments is illustrative and not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. A basement post-cast strip structure comprising a trench (1), characterized in that: The pit (1) is internally provided with a concrete cushion layer (2), the concrete cushion layer (2) is provided with a waterproof layer (3), the waterproof layer (3) is provided with a water stop caulking plate (5), the water stop caulking plate (5) is symmetrically provided with a positioning structure on both sides, each positioning structure is provided with a supporting screw rod (6), the supporting screw rod (6) is provided with a plurality of water stop steel plates (65), each water stop steel plate (65) is fixed by a plugging structure, each plugging structure is provided with a supporting structure, the water pressure resisting cushion layer (4) is covered on the waterproof layer (3), and the water pressure resisting cushion layer (4) is internally provided with a reinforcing structure; the reinforcing structure comprises bent steel bars (41), first cushion layer steel bars (42), second cushion layer steel bars (43) and third cushion layer steel bars (44), and the bent steel bars (41), the first cushion layer steel bars (42), the second cushion layer steel bars (43) and the third cushion layer steel bars (44) are all provided with a plurality of the bent steel bars (41), the first cushion layer steel bars (42), the second cushion layer steel bars (43) and the third cushion layer steel bars (44); a plurality of the bent steel bars (41) are horizontally arranged above the waterproof layer (3), the first cushion layer steel bars (42) are longitudinally arranged on the bent steel bars (41), a plurality of the second cushion layer steel bars (43) are horizontally arranged on the waterproof layer (3), and a plurality of the third cushion layer steel bars (44) are longitudinally arranged on the second cushion layer steel bars (43); the bent steel bars (41), the first cushion layer steel bars (42), the second cushion layer steel bars (43) and the third cushion layer steel bars (44) are all laid in the water pressure resisting cushion layer (4); the positioning structure comprises the water stop caulking plate (5), a positioning screw rod (51), an L-shaped positioning steel bar (52), a positioning steel plate (53), a guide seat (54) and a pre-buried sleeve (56), the water stop caulking plate (5) is provided with a plurality of insertion grooves (57), one end of a plurality of the positioning screw rods (51) is vertically inserted into the insertion grooves (57), the bottom of the positioning screw rod (51) is fixedly provided with the horizontal rod of the L-shaped positioning steel bar (52), the vertical rod of the L-shaped positioning steel bar (52) is movably connected with the positioning steel plate (53) arranged on the bent steel bar (41), both ends of each positioning steel plate (53) are sleeved on three adjacent bent steel bars (41), and the upper portion of the positioning steel plate (53) is symmetrically provided with two pre-buried sleeves (56); the positioning steel plate (53) and the pre-buried sleeve (56) are all located in the water pressure resisting cushion layer (4).

2. The basement post-cast strip structure according to claim 1, characterized in that: The lower portion of each positioning steel plate (53) is symmetrically provided with a guide seat (54), each positioning steel plate (53) is movably sleeved on the corresponding bent steel bar (41) by two guide seats (54) which horizontally span three bent steel bars (41), and the inner wall of the pre-buried sleeve (56) is provided with a threaded mounting hole (58).

3. The basement post-cast strip structure according to claim 2, characterized in that: The inner wall of the guide seat (54) is provided with a mounting hole (59), the bent reinforcing steel bars (41) pass through the mounting hole (59) and are connected with the guide seat (54), one side of the positioning steel plate (53) is symmetrically provided with a protruding arc-shaped plate, an insertion hole (55) is formed in each arc-shaped plate, and the vertical rod of the L-shaped positioning steel bar (52) is inserted into the insertion hole (55).

4. The basement post-cast strip structure according to claim 3, characterized in that: The plugging structure comprises first support plates (61), second support plates (62), third support plates (63) and fourth support plates (64), the bottom ends of the support screws (6) are screw-mounted in the threaded mounting holes (58), each first support plate (61), second support plate (62), third support plate (63) and fourth support plate (64) are sequentially sleeved on two support screws (6), the water stop steel plates (65) are downwardly and obliquely bent on both sides, two second positioning holes (612) are formed in each water stop steel plate (65), a first positioning hole (611) is formed in each first support plate (61) and each third support plate (63), the first positioning hole (611) is symmetrically provided with two holes, a square boss for positioning the hole position is upwardly arranged on the first positioning hole (611), a first positioning hole (611) is formed in each second support plate (62) and each fourth support plate (64), the first positioning hole (611) is symmetrically provided with two holes, a square boss for positioning the hole position is downwardly arranged on the first positioning hole (611), each first support plate (61), second support plate (62), water stop steel plate (65), third support plate (63) and fourth support plate (64) are sequentially sleeved on each two support screws (6), each first support plate (61) is fixed by two first nuts (66), each second support plate (62) is fixed by two second nuts (67), each third support plate (63) is fixed by two third nuts (671), and the upper portion and the lower portion of each fourth support plate (64) are fixed by two fourth nuts (68).

5. The basement post-cast strip structure according to claim 4, characterized in that: One side of each of the first support plate (61), each of the second support plate (62), each of the third support plate (63) and each of the fourth support plate (64) is fixedly installed with a steel mesh connecting plate (69), a steel wire hole (613) is formed in the steel mesh connecting plate (69), the steel mesh connecting plate (69) of each of the first support plate (61) and the steel mesh connecting plate (69) of each of the second support plate (62) are installed with a blocking steel mesh (610), the steel mesh connecting plate (69) of each of the third support plate (63) and the steel mesh connecting plate (69) of each of the fourth support plate (64) are installed with a blocking steel mesh (610), a plurality of steel wire holes (613) for fixing the blocking steel mesh (610) are formed in each of the steel mesh connecting plates (69); the steel mesh connecting plates (69) and the blocking steel meshes (610) of the blocking structures on both sides are correspondingly arranged, and the steel mesh connecting plates (69) and the blocking steel meshes (610) are arranged on the outer side of the blocking structure.

6. The basement post-cast strip structure according to claim 5, characterized in that: The support structure comprises a support inclined rod (7) and a fixing nut (71), one end of the support inclined rod (7) is an upper horizontal end, a sleeving hole (72) is formed in the middle of the upper horizontal end, and the sleeving hole (72) is movably sleeved on the support screw rod (6); the other end of the support inclined rod (7) is a lower horizontal end, a lower support hole (73) is formed in the middle of the lower horizontal end, the support hole (73) is movably sleeved on the top of the positioning screw rod (51), and the upper part of the lower horizontal end is fixed by the fixing nut (71); the upper horizontal end is higher than the lower horizontal end.

7. The basement post-cast strip structure according to claim 6, characterized in that: The upper horizontal end is located between the first support plate (61) and the second support plate (62), and the lower horizontal end is closely attached to the water pressure resisting cushion layer.

8. The construction method of the basement post-cast strip structure according to claim 7, wherein the specific steps are: S1: laying out the foundation and opening a pit groove (1), then pouring a concrete cushion layer (2) on the pit groove (1), and laying a waterproof layer (3) on the surface of the concrete cushion layer (2); S2: crossing and binding the bent reinforcing steel bars (41) and the first cushion layer reinforcing steel bars (42) with iron wires in the pit of the waterproof layer (3), and crossing and binding the second cushion layer reinforcing steel bars (43) and the third cushion layer reinforcing steel bars (44) with iron wires on the surface of the waterproof layer (3); S3: In the pit of waterproof layer (3), lay waterproof embedded plate (5), make it between two side bending steel bars (41), set positioning steel plate (53) on corresponding bending steel bars (41), each positioning steel plate (53) sets on three corresponding bending steel bars (41); the bottom end of positioning screw rod (51) is inserted into the slot (57) on waterproof embedded plate (5), at the same time, the vertical rod of L-shaped positioning steel bar (52) is inserted into the insertion hole (55), the position of guide seat (54) is limited, then the threaded mounting hole (58) is blocked by wooden plug, and the water pressure resisting cushion layer (4) is poured, one end of each embedded sleeve (56) and positioning screw rod (51) are out of the surface of water pressure resisting cushion layer (4), after the water pressure resisting cushion layer (4) is solidified, the wooden plug of threaded mounting hole (58) is taken out; S4: Support screw rod (6) is screwed into corresponding threaded mounting hole (58) for installation, each first support plate (61) is sleeved on each two support screw rods (6), the panel of first support plate (61) is in contact with the upper surface of water pressure resisting cushion layer (4), then first nut (66) is screwed on support screw rod (6) to fix the position of first support plate (61), then each support inclined rod (7) is sleeved on support screw rod (6) and positioning screw rod (51) respectively, fixed nut (71) is screwed on positioning screw rod (51) to fix the position of support inclined rod (7), support screw rod (6) is supported; S5: Each second nut (67) is threaded to a certain height of support screw rod (6), each second support plate (62) is sleeved on each two support screw rods (6) corresponding to each first support plate (61), second nut (67) can support waterproof steel plate (65), then each waterproof steel plate (65) is installed on each two support screw rods (6) corresponding to each second support plate (62), during installation, the water-facing surface of waterproof steel plate (65) faces water pressure resisting cushion layer (4), then each third support plate (63) is sleeved on each two support screw rods (6) corresponding to each waterproof steel plate (65), third nut (671) is screwed on each third support plate (63) for fixation, then two fourth nuts (68) and corresponding each fourth support plate (64) are installed on each two support screw rods (6), the other side of each fourth support plate (64) is also screwed into fourth nut (68) for fixation, the distance between two groups of steel mesh connecting plates (69) can be adjusted by rotating second nut (67) and third nut (671) at different positions, so that the distance between two groups of steel mesh connecting plates (69) remains consistent; S6: The corresponding length of blocking steel mesh (610) is bound or welded by iron wire through the wire hole (613) on the corresponding steel mesh connecting plate (69). S7: bundle the steel bars on the side far away from the two side blocking steel nets (610) and pour concrete to form the basement floor, so that the middle area of the two side blocking steel nets (610) forms a post-poured belt.

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