Construction method of buried assembly type concrete fire pool

Abstract

The invention discloses a construction method of a buried assembly type concrete fire pool, which is characterized in that a prefabricated pool top plate and prefabricated pool side plates are produced in a factory in a standardized manner, the quality is controllable, common quality problems in cast-in-place concrete construction are effectively avoided, and the prefabricated pool top plate and the prefabricated pool side plates are assembled and fixed in a manner of reserving connecting anchor bars on plates; a steel square tube bearing structure and a transverse supporting rod are installed in the pool, the structural stability of the fabricated concrete fire-fighting pool is ensured, then anti-seepage concrete is poured and tamped at the splicing position to connect the stand columns and the connecting beams, and finally the interior of the pool is coated with waterproof paint, so that the construction efficiency and the construction quality of the fabricated concrete fire-fighting pool are improved; and the waterproof performance of the structure is effectively ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of fire pool construction, and particularly to a construction method for a buried prefabricated concrete fire pool. Background Art

[0002] Traditional construction methods for fire pools usually adopt the method of casting concrete on site, which has problems such as long construction periods, difficult quality control, and serious environmental pollution. With the development of prefabricated building technology, prefabricated concrete structures have gradually been applied to the construction of fire pools due to their advantages of fast construction speed, controllable quality, and environmental protection.

[0003] However, existing construction methods for prefabricated concrete fire pools still have deficiencies in aspects such as connection node treatment and waterproof performance, and urgent improvements are needed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a construction method for a buried prefabricated concrete fire pool in view of the above-mentioned deficiencies of the prior art. This construction method for a buried prefabricated concrete fire pool has a short construction period, controllable quality, excellent waterproof performance, saves labor costs, reduces on-site wet operations, reduces construction waste and noise pollution, conforms to the development concept of green buildings, and has broad application prospects.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: A construction method for a buried prefabricated concrete fire pool, the steps are as follows: Step 1: According to the design requirements, prefabricate multiple precast pool roof slabs and precast pool side slabs.

[0006] Among them, both the precast pool roof slab and the precast pool side slab adopt single-layer bidirectional reinforcement; symmetric L-shaped rabbets are reserved at both left and right ends of the precast pool side slab, and the single-layer bidirectional reinforcement extends uniformly along the L-shaped rabbets that are continuous at both ends to form side slab reserved anchor bars; top reserved anchor bars extend uniformly from the top of the precast pool side slab, and bottom reserved anchor bars extend uniformly from the bottom; L-shaped rabbets are reserved on the periphery of the precast pool roof slab, and the single-layer bidirectional reinforcement extends uniformly along the L-shaped rabbets that are continuous on the periphery to form roof slab reserved anchor bars.

[0007] Step 2: Excavate the foundation pit according to the design drawings to ensure that the length, width, and depth dimensions of the foundation pit meet the requirements.

[0008] Step 3: Pour a reinforced concrete structure raft slab in the foundation pit, and pre-set embedded grooves 11 on the upper surface of the structure raft slab, and bind embedded groove steel bars in the embedded grooves.

[0009] Step 4: Transport the prefabricated pool top plate and prefabricated pool side plates to the construction site; use lifting equipment to vertically place the prefabricated pool side plates in the embedded grooves one by one, and connect the adjacent prefabricated pool side plates with the L-shaped tongue and groove facing outward.

[0010] Step 5: Overlap and tie the reserved anchor bars at the bottom with the embedded groove steel bars, and fix temporary diagonal braces on the inner side of each prefabricated water tank side plate. Then pour C40 anti-seepage concrete in the embedded groove and vibrate it to make it dense. The adjacent prefabricated water tank side plates are overlapped and tied with the reserved anchor bars on the side plates.

[0011] Step 6: There are multiple square tube load-bearing structural columns distributed in an array inside the fire water tank. Horizontal braces are connected between adjacent square tube load-bearing structural columns in the length and / or width direction. Horizontal braces are also connected between the square tube load-bearing structural columns on the periphery of the array and the side panels of the prefabricated water tank to ensure the stability of the prefabricated concrete fire water tank.

[0012] Step 7: Use lifting equipment to place the prefabricated pool top plates in the corresponding positions in sequence, and connect the adjacent prefabricated pool top plates 3 with the L-shaped tongue and groove facing outward.

[0013] Step 8: The prefabricated water tank top plate and the installed square tube load-bearing structure column at the bottom are fixed with bolts; the adjacent prefabricated water tank top plates are overlapped and tied with the anchor bars reserved in the top plates. At the same time, the top reserved anchor bars around the fire water tank are overlapped and tied with the anchor bars reserved in the top plates.

[0014] Step 9: Pour C40 waterproof concrete into the formwork at the joints and vibrate it to make it dense, so as to form concrete connecting columns between the side panels, concrete connecting columns at the corners of the side panels, concrete connecting beams between the top panels, and concrete connecting beams between the top and side panels.

[0015] Step 10: Apply waterproof paint on the surface of the prefabricated pool top plate and prefabricated pool side plate inside the fire water pool, and apply an additional layer of waterproof paint on the joints inside the pool to ensure the waterproof performance of the pool.

[0016] Step 11: Install the stainless steel assembled pump room and ventilation pipe on the top of the pool.

[0017] Step 12: Backfill the foundation pit and compact the backfill soil layer by layer to ensure the stability of the pool structure.

[0018] Furthermore, the top of the fire water tank is formed by assembling M×N prefabricated water tank top plates, with M rows of prefabricated water tank top plates in the length direction and N rows of prefabricated water tank top plates in the width direction; the surrounding sides of the fire water tank are formed by surrounding prefabricated water tank side plates, with M prefabricated water tank side plates correspondingly arranged in the length direction of the fire water tank, whose design length is equal to the design length a of the prefabricated water tank top plate, and whose design height is equal to the design height of the fire water tank; N prefabricated water tank side plates are correspondingly arranged in the width direction of the fire water tank, whose design length is equal to the design width b of the prefabricated water tank top plate, and whose design height is equal to the design height of the fire water tank.

[0019] Furthermore, the embedded groove is in the form of a cup mouth, which is used to position and connect the prefabricated pool side panels; the width of the embedded groove is greater than the thickness of the prefabricated pool side panels, and the prefabricated pool side panels are placed vertically in sequence along the central axis of the embedded groove.

[0020] Furthermore, the L-shaped tongue and groove of the adjacent prefabricated pool side panels in the plane face outward. After the joints are connected, the inner side of the joints is flat and the outer side is "凵"-shaped. The side panels have reserved anchor bars that are overlapped and tied in the outer "凵"-shaped space.

[0021] The L-shaped tongue and groove of the adjacent prefabricated pool side panels at the corner face outward. After the joints are connected, the inner side of the joints is 90° and the outer side is in a "⌋" shape; the side panels have reserved anchor bars that are overlapped and tied in the outer "⌋"-shaped space.

[0022] Furthermore, the L-shaped tongue and groove of the adjacent prefabricated water tank top plates face outward. After the joints are connected, the inner side of the joints is flat and the outer side is "凵"-shaped. The prefabricated water tank top plates form "凵"-shaped spaces in both the length and width directions, and the top plates have reserved anchor bars that are overlapped and tied in the "凵"-shaped space.

[0023] Furthermore, each square tube load-bearing structural column is fixed to the structural raft plate with bolts; a square support head is integrally formed at the top of the square tube load-bearing structural column, and the top corners of each four prefabricated pool top plates are assembled at the square support head and fixed with bolts.

[0024] Furthermore, an array of (M-1) × (N-1) square tube load-bearing structural columns is distributed inside the fire water tank.

[0025] Furthermore, connecting plates are integrally provided at both ends of the transverse brace; and both ends of the transverse brace are bolted to the square tube load-bearing structure columns via the connecting plates.

[0026] Furthermore, one end of the transverse strut is bolted to the square tube load-bearing structure column on the periphery of the array through a connecting plate, and the other end is bolted to the joint of the adjacent prefabricated pool side panels through a connecting plate.

[0027] Furthermore, waterproof coating is applied to the surfaces of the precast pool roof slab and precast pool side panels inside the pool to ensure the waterproof performance of the pool, and an additional layer of waterproof coating is applied at the joints inside the pool.

[0028] Furthermore, the concrete connecting columns between side panels, the concrete connecting columns at the side panel corners, the concrete connecting beams between top panels, and the concrete connecting beams between the roof slab and side panels adopt an enlarged treatment form with protruding columns and protruding connecting beams.

[0029] The present invention has the following beneficial effects: 1. The factory prefabricates the precast pool roof slab and precast pool side panels in advance, assembles and fixes the precast pool roof slab and precast pool side panels by means of reserved connecting anchor bars on the plates, installs a steel square tube load-bearing structure and transverse braces inside the pool to ensure the structural stability of the prefabricated concrete fire pool. Subsequently, anti-seepage concrete connecting columns and connecting beams are cast at the joints, and finally, waterproof coating is applied inside the pool, which improves the construction efficiency and construction quality of the prefabricated concrete fire pool, effectively ensures the structural waterproof performance. Compared with the construction of traditional cast-in-place concrete structure fire pools, the construction method of the buried prefabricated concrete fire pool of the present invention has a short construction period, controllable quality, excellent waterproof performance, saves labor costs, reduces on-site wet operations, reduces construction waste and noise pollution, conforms to the development concept of green buildings, and has a wide application prospect.

[0030] 2. The connection between the precast pool side panel and the structural raft slab is different from the traditional connection method of precast wall panels. The traditional connection adopts the form of sleeve grouting. In the present invention, a cup-shaped embedded groove is set on the structural raft slab, embedded groove steel bars are tied in the embedded groove. After the embedded groove steel bars are lapped and tied with the bottom reserved anchor bars at the bottom of the precast pool side panel, high-strength anti-seepage concrete is directly poured into the embedded groove. Compared with the traditional connection method at the bottom of precast wall panels, it is more convenient for construction and has better structural stability.

[0031] 3. The precast components are produced in the factory in a standardized manner, and the quality is controllable, effectively avoiding the common quality problems in cast-in-place concrete construction.

[0032] 4. High-strength anti-seepage concrete is poured and vibrated densely at the joint connections to form the concrete connecting columns between side panels, the concrete connecting columns at the side panel corners, the concrete connecting beams between top panels, and the concrete connecting beams between the roof slab and side panels, and an enlarged treatment form with protruding columns and protruding connecting beams is adopted to improve the anti-seepage performance; waterproof coating is applied inside the pool, greatly reducing the leakage risk at the joints, effectively ensuring the waterproof performance of the pool, improving the durability of the pool, and extending the service life.

[0033] 5. Multiple square tube load-bearing structure columns are arranged in an array inside the fire pool to ensure the integrity and stability of the pool structure, and thus the thickness of the wall panels can be reduced. Brief Description of the Drawings

[0034] Figure 1 is the overall top view of the buried prefabricated concrete fire pool.

[0035] Figure 2 is Figure 1 the sectional view taken along line A-A of

[0036] Figure 3 is the schematic diagram of the connection between the precast pool side plate and the embedded groove.

[0037] Figure 4 is the partial side view of the buried prefabricated concrete fire pool.

[0038] Figure 5 is the schematic diagram of the joint connection of adjacent precast pool side plates.

[0039] Figure 6 is the schematic diagram of the joint connection of adjacent precast pool side plates in the plane.

[0040] Among them are: 1 - Structural raft slab, 2 - Prefabricated pool top slab, 3 - Prefabricated pool side plate, 4 - Concrete connecting column between side plates, 5 - Concrete connecting column at the side plate corner, 6 - Stainless steel assembled pump house, 7 - Fire water intake, 8 - Vent pipe, 9 - Square pipe load-bearing structural column, 10 - Transverse strut, 11 - Embedded groove, 12 - Bottom reserved anchor bars, 13 - Reinforcement bars in the embedded groove, 14 - Concrete connecting beam between the top slab and the side plate, 15 - Temporary inclined strut, 18 - Waterproof coating, 19 - Concrete connecting beam between top plates, 20 - Tongue-and-groove joint, 21 - Connecting plate. Detailed Embodiment

[0041] The present invention will be further described in detail below in conjunction with the drawings and specific preferred embodiments.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "left side", "right side", "upper part", "lower part", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not represent the importance of the components, so it cannot be understood as a limitation to the present invention. The specific dimensions adopted in this embodiment are only for illustrating the technical solution by way of example, and do not limit the protection scope of the present invention.

[0043] As Figure 1 shown, a construction method for a buried prefabricated concrete fire pool is as follows: Step 1: According to the design requirements, prefabricate multiple prefabricated pool top slabs 2 and prefabricated pool side plates 3.

[0044] According to the design requirements of the fire pool size, determine the quantity of the precast pool top plate 2 and the precast pool side plate 3 to be precast.

[0045] Furthermore, the top of the fire pool is formed by assembling precast pool top plates.

[0046] Based on the design length L and design width W of the fire pool, as well as the design length a and width b of the precast pool top plate, the top of the fire pool is formed by assembling M×N precast pool top plates. There are M rows of precast pool top plates in the length direction and N rows of precast pool top plates in the width direction; among them, M and N are natural numbers greater than or equal to 3, and L = M*a, W = N*b.

[0047] Preferably, as Figure 1-2 shown, M = 9, N = 3, and the top of the fire pool is formed by assembling 27 precast pool top plates.

[0048] Furthermore, the periphery of the fire pool is surrounded by precast pool side plates; the height dimensions of the precast pool side plates in the length direction of the fire pool are the same as those in the width direction, and the length dimensions are slightly different.

[0049] Furthermore, M precast pool side plates are correspondingly arranged in the length direction of the fire pool. Its designed height is the designed height H of the fire pool, and its designed length is equal to the designed length a of the precast pool top plate.

[0050] Preferably, 9 precast pool side plates are correspondingly arranged in the length direction, with a height of H and a length of a.

[0051] Furthermore, N precast pool side plates are correspondingly arranged in the width direction of the fire pool. Its designed height is the designed height H of the fire pool, and its designed length is equal to the designed width b of the precast pool top plate.

[0052] Preferably, 3 precast pool side plates are correspondingly arranged in the width direction, with a height of H and a length of b.

[0053] Preferably, both the precast pool top plate 2 and the precast pool side plate 3 adopt single-layer bidirectional reinforcement.

[0054] Symmetrical L-shaped rabbets are reserved at the left and right ends of the precast pool side plate 3. The single-layer bidirectional reinforcement extends uniformly along the L-shaped rabbets that run through both ends to form side plate reserved anchor bars.

[0055] Top reserved anchor bars extend uniformly from the top of the precast pool side plate 3, and bottom reserved anchor bars 12 extend uniformly from the bottom.

[0056] L-shaped rabbets are reserved on the periphery of the precast pool top plate 2. The single-layer bidirectional reinforcement extends uniformly along the L-shaped rabbets that run through the periphery to form top plate reserved anchor bars.

[0057] Step 2: Excavate the foundation pit according to the design drawings, ensuring that the length, width and depth of the foundation pit meet the requirements.

[0058] The foundation pit is used to cast the bottom structure raft slab of the fire water tank, and the bottom structure raft slab is the foundation.

[0059] Step 3: Cast a reinforced concrete raft slab 1 in the foundation pit, and pre-set embedded grooves 11 on the upper surface of the raft slab, and tie embedded groove steel bars 13 in the embedded grooves.

[0060] Furthermore, the design size of the embedded trough is determined based on the design size of the fire water tank.

[0061] As can be understood, the fire water tank is surrounded by prefabricated side panels. Pre-buried grooves 11 are pre-installed on the upper surface of the structural raft. These grooves are used to position and arrange the prefabricated side panels, thereby forming the fire water tank. Therefore, the design dimensions of the pre-buried grooves are determined based on the design dimensions of the fire water tank.

[0062] Step 4: transport the prefabricated pool top plate 2 and the prefabricated pool side plate 3 to the construction site; use lifting equipment to vertically place the prefabricated pool side plates 3 in the embedded grooves in sequence, and connect the adjacent prefabricated pool side plates 3 with the L-shaped tongue and groove facing outward.

[0063] like Figure 3 As shown, the embedded groove 11 is in the form of a cup mouth and is used to position and connect the prefabricated pool side panel 3.

[0064] Furthermore, the width of the embedded groove is greater than the thickness of the prefabricated water pool side panels 3, and the prefabricated water pool side panels 3 are placed in sequence along the central axis of the embedded groove.

[0065] like Figure 5 As shown, adjacent prefabricated pool side panels 3 are connected by seams, with the L-shaped tongue and groove facing outward; there are two types of seam connections of adjacent prefabricated pool side panels, one is an in-plane seam connection, and the other is a corner seam connection.

[0066] For the in-plane joint connection: the L-shaped tongue and groove of the adjacent prefabricated pool side panels 3 in the plane face outwards. After the joint is connected, the inner side of the joint is flat and the outer side is "凵" shaped.

[0067] For the joint connection at the corner: the L-shaped tongue and groove of the adjacent prefabricated pool side panels 3 at the corner face outward. After the joint is connected, the inner side of the joint is 90° and the outer side is in a "⌋" shape.

[0068] Step 5: Overlap and tie the bottom reserved anchor bars 12 and the embedded groove steel bars 13, and fix temporary diagonal braces 15 on the inner side of each prefabricated water tank side plate. Then pour C40 anti-seepage concrete in the embedded groove 11 and vibrate it to make it dense; overlap and tie the adjacent prefabricated water tank side plates with the side plate reserved anchor bars.

[0069] Preferably, in order to ensure the verticality and installation convenience of the prefabricated pool side panels, temporary diagonal braces 15 are fixed on the inner side of the prefabricated pool side panels.

[0070] The connection between the prefabricated pool side panel and the structural raft panel is different from the traditional prefabricated wall panel connection method. The traditional connection adopts the form of sleeve grouting. The present invention sets a cup-shaped embedded groove on the structural raft panel, ties the embedded groove steel bars in the embedded groove, and the embedded groove steel bars 13 are overlapped and tied with the bottom reserved anchor bars 12 at the bottom of the prefabricated pool side panel. After the completion of the lap connection, a higher grade of anti-seepage concrete is directly poured in the embedded groove. Compared with the traditional prefabricated wall panel bottom connection method, it is more convenient to construct and has better structural stability.

[0071] Furthermore, if Figure 5 As shown, adjacent precast pool side panels are overlapped and tied using the side panel's reserved anchor bars. For in-plane joints, the side panel's reserved anchor bars are overlapped and tied within the outer "凵"-shaped space. For corner joints, the side panel's reserved anchor bars are overlapped and tied within the outer "⌋"-shaped space.

[0072] Step 6: There are multiple square tube load-bearing structural columns distributed in an array inside the fire water tank. Horizontal braces are connected between adjacent square tube load-bearing structural columns in the length and / or width direction. Horizontal braces are also connected between the square tube load-bearing structural columns on the periphery of the array and the side panels of the prefabricated water tank to ensure the stability of the prefabricated concrete fire water tank.

[0073] The fire water tank is supported by a number of square tube load-bearing structural columns arranged in an array inside to ensure the integrity and stability of the tank structure, thereby reducing the thickness of the wall panels.

[0074] Preferably, a square tube load-bearing structural column 9 is provided at the top corner assembly of every four prefabricated water pool top plates to support the prefabricated water pool top plates 3, that is, (M-1) × (N-1) square tube load-bearing structural columns 9 are distributed in an array inside the fire water pool; the square tube load-bearing structural columns can further improve the overall structural stability of the fire water pool while bearing the load.

[0075] Preferably, if Figure 1-2 As shown, there are 8×2 (a total of 16) square tube load-bearing structural columns 9 distributed in an array inside the fire water tank.

[0076] Furthermore, each square tube load-bearing structural column 9 is fixed to the structural raft 1 by bolts.

[0077] Furthermore, in the length and / or width direction, transverse struts 10 are connected between adjacent square tube load-bearing structural columns 9; the transverse struts can enhance the load-bearing strength of the square tube load-bearing structural columns.

[0078] Preferably, connecting plates are integrally provided at both ends of the horizontal strut to enhance the connection tightness.

[0079] Preferably, both ends of the horizontal strut are bolted to the square tube load-bearing structural column through the connecting plates.

[0080] Furthermore, a horizontal strut 10 is connected between the square tube load-bearing structural column 9 and the precast water tank side plate.

[0081] Preferably, one end of the horizontal strut 10 is bolted to the square tube load-bearing structural column at the periphery of the array through the connecting plate, and the other end is bolted to the joint of adjacent precast water tank side plates through the connecting plate.

[0082] Step Seven: Use a hoisting device to place the precast water tank top plate 3 to the corresponding positions in sequence. The adjacent precast water tank top plates 3 are connected at the joints, and the L-shaped rabbet faces outward.

[0083] As Figure 1 and Figure 6 shown, the L-shaped rabbets of adjacent precast water tank top plates 3 face outward. After the joints are connected, the inner side of the joint is flat and the outer side is in a "U" shape. The precast water tank top plate 3 forms a "U" shape space in both the length direction and the width direction.

[0084] Preferably, one precast water tank top plate is determined for reserving the fire water intake 7 and is also used for entering and exiting the interior construction of the water tank.

[0085] Step Eight: The precast water tank top plate 3 and the square tube load-bearing structural column 9 installed at the bottom are fixed with bolts; the adjacent precast water tank top plates are overlapped and tied with the top plate reserved anchor bars. At the same time, the top reserved anchor bars on the periphery of the fire water tank are overlapped and tied with the top plate reserved anchor bars.

[0086] A square support head is integrally formed at the top of the square tube load-bearing structural column 9. The top corners of every four precast water tank top plates are assembled at the square support head and fixed by means of bolt connection. The support stability and safety of multiple adjacent precast water tank top plates are improved through the square support head.

[0087] Furthermore, as Figure 1 and Figure 6 shown, the top plate reserved anchor bars are overlapped and tied in the "U" shape space. At the same time, the top reserved anchor bars on the periphery of the fire water tank are overlapped and tied with the top plate reserved anchor bars. This step completes the overlapping and tying of the anchor bars between adjacent precast water tank top plates, and also completes the overlapping and tying of the anchor bars between the precast water tank top plates on the periphery of the fire water tank and the precast water tank side plates. After this step is completed, the assembly type concrete fire water tank completes all the steel bar tying.

[0088] Step Nine: Erect formwork at the joint seams and pour C40 impermeable concrete, and vibrate it thoroughly to form the concrete connecting columns 4 between side plates, the concrete connecting columns 5 at the side plate corners, the concrete connecting beams 19 between top plates, and the concrete connecting beams 14 between the top plate and the side plates.

[0089] As Figure 4-6 shown, use a higher grade of impermeable concrete at each joint seam; the concrete connecting columns 4 between side plates, the concrete connecting columns 5 at the side plate corners, the concrete connecting beams 19 between top plates, and the concrete connecting beams 14 between the top plate and the side plates adopt an enlarged treatment form with protruding columns and protruding connecting beams to improve impermeability.

[0090] Step Ten: Apply waterproof coating on the surfaces of the precast pool top plate and the precast pool side plates inside the fire pool, and additionally apply a layer of waterproof coating at the joint seams inside the pool to ensure the waterproof performance of the pool.

[0091] Applying waterproof coating inside the pool greatly reduces the leakage risk at the joints, effectively ensures the waterproof performance of the pool, improves the durability of the pool, and extends the service life.

[0092] Step Eleven: Install the stainless steel assembled pump house 6 and the vent pipe 8 on the top of the pool.

[0093] Set up the stainless steel assembled pump house 6 at the precast pool top plate. The top of the pump house can be opened to facilitate entry into the inside of the pool during construction.

[0094] Further, remove the temporary inclined struts 15 fixed on the inner side of the precast pool side plates.

[0095] Step Twelve: Backfill the foundation pit, and compact the backfill soil layer by layer to ensure the stability of the pool structure.

[0096] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0097] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A construction method for a buried prefabricated concrete fire pool, characterized in that: Here are the steps: Step 1: Prefabricate multiple prefabricated pool top plates and prefabricated pool side plates according to design requirements; Among them, the prefabricated pool top plate and prefabricated pool side plate both adopt single-layer two-way reinforcement; Symmetrical L-shaped grooves are reserved at the left and right ends of the prefabricated pool side panels. Single-layer bidirectional reinforcement extends evenly along the L-shaped grooves at both ends to form reserved anchor bars for the side panels. Top reserved anchor bars extend evenly from the top of the prefabricated pool side panels, and bottom reserved anchor bars extend evenly from the bottom. The top slab of the prefabricated pool is equipped with L-shaped grooves on all sides. Single-layer bidirectional reinforcement is evenly extended along the L-shaped grooves along the entire length of the slab to form reserved anchor bars for the top slab. Step 2: Excavate the foundation pit according to the design drawings to ensure that the length, width and depth of the foundation pit meet the requirements; Step 3: Cast a reinforced concrete raft slab in the foundation pit, pre-set an embedded groove on the upper surface of the raft slab, and tie embedded groove steel bars in the embedded groove; Step 4: Transport the prefabricated pool top plate and prefabricated pool side plates to the construction site; use hoisting equipment to vertically place the prefabricated pool side plates in the embedded grooves one by one, and connect the adjacent prefabricated pool side plates with the L-shaped tongue and groove facing outward; Step 5: Overlap and tie the anchor bars reserved at the bottom and the steel bars of the embedded grooves, and fix temporary diagonal braces on the inner side of each prefabricated pool side panel. Then pour C40 anti-seepage concrete in the embedded grooves and vibrate it to make it dense. Overlap and tie the side panels of adjacent prefabricated pools with the anchor bars reserved on the side panels. Step 6: Multiple square tube load-bearing structural columns are arranged in an array inside the fire water tank. Transverse braces are connected between adjacent square tube load-bearing structural columns in the length and / or width directions. Transverse braces are also connected between the square tube load-bearing structural columns on the periphery of the array and the prefabricated pool side panels to ensure the stability of the prefabricated concrete fire water tank. Step 7: Use hoisting equipment to place the prefabricated pool roof panels in the corresponding positions in sequence, and connect the adjacent prefabricated pool roof panels with the L-shaped tongue and groove facing outward; Step 8: Use bolts to fix the prefabricated pool top plate to the installed square tube load-bearing structural columns at the bottom; overlap and tie the adjacent prefabricated pool top plates with the reserved anchor bars on the top plates. At the same time, overlap and tie the reserved anchor bars on the top of the fire water tank perimeter with the reserved anchor bars on the top plates; Step 9: Pour C40 impermeable concrete into the joints and vibrate to compact them, thereby forming concrete connecting columns between side panels, concrete connecting columns at the corners of side panels, concrete connecting beams between top panels, and concrete connecting beams between top and side panels; Step 10: Apply waterproof coating to the surface of the prefabricated top and side panels of the fire water pool, and apply an additional layer of waterproof coating to the joints inside the pool to ensure the waterproof performance of the pool; Step 11: Install the stainless steel assembled pump room and ventilation pipe on the top of the pool; Step 12: Backfill the foundation pit and compact the backfill soil layer by layer to ensure the stability of the pool structure.

2. The construction method of the buried prefabricated concrete fire pool according to claim 1, characterized in that: The top of the fire water tank is formed by assembling M×N prefabricated water tank top plates, with M rows of prefabricated water tank top plates in the length direction and N rows of prefabricated water tank top plates in the width direction. The fire water tank is surrounded by prefabricated water tank side plates, with M prefabricated water tank side plates correspondingly arranged in the length direction of the fire water tank. The design length of the prefabricated water tank side plates is equal to the design length a of the prefabricated water tank top plates, and the design height is equal to the design height of the fire water tank. N prefabricated water pool side panels are arranged correspondingly in the width direction of the fire water pool, whose design length is equal to the design width b of the prefabricated water pool top plate, and whose design height is equal to the design height of the fire water pool.

3. The construction method of the buried prefabricated concrete fire pool according to claim 1, characterized in that: The embedded groove is in the form of a cup mouth and is used to position and connect the prefabricated pool side panels; the width of the embedded groove is greater than the thickness of the prefabricated pool side panels, and the prefabricated pool side panels are placed vertically in sequence along the central axis of the embedded groove.

4. The construction method of the buried prefabricated concrete fire pool according to claim 1, characterized in that: The L-shaped tongue and groove of the adjacent prefabricated pool side panels in the plane face outwards. After the joints are connected, the inner side of the joints is flat and the outer side is "凵" shaped. The anchor bars reserved in the side panels are overlapped and tied in the outer "凵" shaped space. The L-shaped tongue and groove of the adjacent prefabricated pool side panels at the corners face outwards. After the joints are connected, the inner side of the joints is 90° and the outer side is in a "⌋" shape. The anchor bars reserved in the side panels are overlapped and tied in the outer "⌋"-shaped space. The L-shaped tongue and groove of the adjacent prefabricated water tank top plates face outward. After the joints are connected, the inner side of the joints is flat and the outer side is "凵"-shaped. The prefabricated water tank top plates form "凵"-shaped spaces in both the length and width directions. The top plates have reserved anchor bars that are overlapped and tied in the "凵"-shaped spaces.

5. The construction method of the buried prefabricated concrete fire pool according to claim 2, characterized in that: Each square tube load-bearing structural column is fixed to the structural raft with bolts; a square support head is integrally formed on the top of the square tube load-bearing structural column, and the top corners of every four prefabricated pool top plates are assembled at the square support head and fixed with bolts.

6. The construction method of the buried prefabricated concrete fire pool according to claim 5, characterized in that: There are (M-1) × (N-1) square tube load-bearing structural columns distributed in an array inside the fire water tank.

7. The construction method of the buried prefabricated concrete fire pool according to claim 6, characterized in that: Both ends of the transverse brace are integrally provided with connecting plates; the two ends of the transverse brace are connected to the square tube load-bearing structure column bolts through the connecting plates.

8. The construction method of the buried prefabricated concrete fire pool according to claim 7, characterized in that: One end of the transverse brace is bolted to the square tube load-bearing structure column on the periphery of the array through a connecting plate, and the other end is bolted to the joint of the adjacent prefabricated pool side panel through a connecting plate.

9. The construction method of the buried prefabricated concrete fire pool according to claim 1, characterized in that: Apply waterproof paint on the surface of the prefabricated pool top plate and prefabricated pool side plate inside the pool to ensure the waterproof performance of the pool, and apply an additional layer of waterproof paint on the joints inside the pool.

10. The construction method of the buried prefabricated concrete fire pool according to claim 1, characterized in that: The concrete connecting columns between the side panels, the concrete connecting columns at the side panel corners, the concrete connecting beams between the top panels, and the concrete connecting beams between the top panel and the side panels adopt the enlarged treatment form of protruding columns and protruding connecting beams.

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