Concrete pouring diversion device and construction method of sewage treatment pool

Abstract

This application relates to the technical field of construction engineering. Specifically, it relates to a concrete pouring diversion device and a construction method for pouring the concrete pool wall of a sewage treatment pool, including a diversion member and a mounting base for being fixed on an external installation position; the diversion member is in threaded cooperation with the mounting base so that the diversion member can move relative to the mounting base in a first direction; one end of the diversion member in the first direction is used for concrete to flow into the diversion member, and the other end is used for extending to a target position; the first direction is the length direction of the diversion member. The purpose of this application is to address the problem that during the traditional concrete pouring process, the concrete is directly fed into the pool wall, and when feeding, the concrete is blocked by the impact force and the steel bar framework, or segregation occurs due to being too high, seriously affecting the construction quality, and to provide a concrete pouring diversion device and a construction method for a sewage treatment pool.

Description

Technical Field

[0001] This application relates to the technical field of construction engineering. Specifically, it relates to a concrete pouring diversion device and a sewage treatment pool, and can also be used in the construction of other concrete wall panels or columns. Background Art

[0002] In China, the Degrémont process is widely used in the sewage treatment of oil refining and chemical projects. It fully combines the sewage treatment process with the refining or chemical process to form an integrated whole, turning waste into treasure by using "waste" to treat "waste". The sewage treatment plant is not only their end point but also their starting point, which not only reduces the direct operating cost of enterprises but also effectively reduces the emission of pollutants. During the construction of the sewage treatment pool, it is important to control the construction quality of the pool to prevent leakage of the pool, environmental pollution, and affect the service life of the project. In the traditional concrete pouring process, the concrete is directly poured into the pool wall. When pouring, the concrete is affected by the impact force and blocked by the steel bar framework, or segregates due to being too high, seriously affecting the construction quality. Summary of the Invention

[0003] The purpose of this application is to provide a concrete pouring diversion device and a construction method for a sewage treatment pool in view of the problem that in the traditional concrete pouring process, the concrete is directly poured into the pool wall, and when pouring, the concrete is affected by the impact force and blocked by the steel bar framework, or segregates due to being too high, seriously affecting the construction quality.

[0004] To achieve the above purpose, this application adopts the following technical solutions:

[0005] One aspect of this application provides a concrete pouring diversion device, including a diversion member and a mounting seat for being fixed on an external installation position; the diversion member is in threaded cooperation with the mounting seat so that the diversion member can move relative to the mounting seat in a first direction; at one end of the diversion member in the first direction, it is used for concrete to flow into the diversion member, and the other end of the diversion member is used for extending to a target position; the first direction is the length direction of the diversion member.

[0006] Optionally, two clamping grooves are formed on the mounting seat, and the two clamping grooves are symmetrically arranged on both sides of the diversion member in a second direction, and the clamping grooves are used for clamping with the external installation position.

[0007] Since the external installation position is usually the formwork of the pool wall, the quick installation and disassembly of the concrete pouring diversion device can be achieved by clamping the formwork of the pool wall through the clamping grooves, and the torque acting on the mounting seat can be overcome during the rotation of the diversion member, making the mounting seat fixed more firmly.

[0008] Optionally, a clamping block is arranged in the card slot. The concrete pouring diversion device further includes a locking bolt. A threaded hole matching with the locking bolt is formed on the mounting seat. The locking bolt penetrates through the threaded hole and extends into the card slot. The locking bolt is movably connected with the clamping block, so that the clamping block can move in the second direction driven by the locking bolt.

[0009] After the card slot is clamped with the pool wall formwork, the clamping block can be driven to move by rotating the locking bolt, so that the clamping block moves along the second direction to extrude the pool wall formwork, and then the pool wall formwork is firmly locked in the card slot. When it is necessary to remove the mounting seat from the pool wall formwork, rotate the locking bolt to drive the clamping block to move away from the pool wall formwork to relax the extrusion of the pool wall formwork, so that the mounting seat and the pool wall formwork are easily separated.

[0010] Optionally, the clamping block has an extrusion surface for cooperating with the pool wall formwork, and the extrusion surface is a plane.

[0011] Optionally, the concrete pouring diversion device further includes a locking bolt. A threaded hole matching with the locking bolt is formed on the mounting seat. The locking bolt penetrates through the threaded hole and extends into the card slot. Two locking bolts are installed at the same card slot, and the two locking bolts are arranged oppositely.

[0012] The tightness of the cooperation between the clamping block and the pool wall formwork is increased, and thus the reliability of the connection between the mounting seat and the pool wall formwork is improved.

[0013] Optionally, the middle part of the diversion member in the first direction is an external thread section, and both ends of the diversion member in the first direction have smooth outer walls.

[0014] The external thread section can form a threaded fit with the mounting seat. Since one end of the diversion member is used to receive concrete and the other end is used to send the concrete to the target position, the outer walls may be directly in contact with the concrete. By setting the outer walls to be smooth, the concrete is not easily hung on the diversion member, so that the diversion member is kept clean to a certain extent, and then the concrete pouring diversion device can operate better. In the embodiment of the present application, the diversion member is preferably a cylindrical member. Of course, the diversion member can also be a polygon such as a triangle or a quadrilateral in cross section, as long as the middle part and / or the lower half part of the diversion member is a cylindrical structure with external threads.

[0015] Optionally, one end of the diversion member for the concrete to flow into in the first direction is a funnel-shaped end.

[0016] This makes it easier for the external feeding device to accurately insert into the diversion member when feeding the concrete into the diversion member, improving the construction efficiency.

[0017] Optionally, a handle assembly is installed on the flow guide member. The handle assembly includes two arc-shaped clamping pieces and two handles. The two arc-shaped clamping pieces are connected by bolts, and the concave sides of one arc-shaped clamping piece and the other arc-shaped clamping piece are arranged opposite to each other so that the flow guide member is clamped between the two arc-shaped clamping pieces. Each of the two arc-shaped clamping pieces is provided with one handle.

[0018] The two arc-shaped clamping pieces are connected by bolts. Thus, the force of clamping the flow guide member by the two arc-shaped clamping pieces can be adjusted by adjusting the bolts. By providing two handles, workers can hold one handle in each hand for operation, which is convenient for construction.

[0019] Optionally, the flow guide member includes a receiving cylinder and a flow guide cylinder sleeved together so that the receiving cylinder and the flow guide cylinder can move relative to each other in the first direction. An external thread cooperating with the mounting seat is formed on the outer wall of the flow guide cylinder.

[0020] During use, the top end of the receiving cylinder can be fixed, and by rotating the flow guide cylinder, when the flow guide cylinder moves relative to the mounting seat, it also moves relative to the receiving cylinder in the same direction. Thus, the overall telescopic movement of the flow guide member is realized. In this way, it is not necessary for the external feeding device to move coordinately due to the overall movement of the flow guide member, which increases the convenience of concrete pouring.

[0021] Optionally, a rotating handle for rotating the flow guide cylinder is fixed on the flow guide cylinder, and a fixed handle is fixed on the receiving cylinder.

[0022] During the process of pouring concrete, the fixed handle can be held manually, or the fixed handle can be fixed to an external mounting position. Then, as the concrete pouring progresses, the rotating handle is moved to realize the movement of the flow guide cylinder relative to the receiving cylinder and the mounting seat.

[0023] Another aspect of the present application provides a concrete pouring mold, including a pool wall formwork, a pool wall steel bar structure fixed to the foundation, and the concrete pouring flow guide device provided by the present application. The bottom ends of the pool wall steel bar structure and the flow guide member are located between two relatively arranged pool wall formworks, and the mounting seat is detachably fixed to the pool wall formwork.

[0024] A third aspect of the present application provides a construction method for a sewage treatment pool, which is realized by applying the concrete pouring flow guide device provided by the present application. The method includes:

[0025] Binding the pool wall steel bar structure;

[0026] Installing the pool wall formwork so that the pool wall steel bar structure is located between two relatively arranged pool wall formworks;

[0027] Insert the flow guide member of the concrete pouring flow guide device between two oppositely arranged formworks of the pool wall, set the bottom end of the flow guide member near the target position, and detachably fix the mounting seat on the formwork of the pool wall;

[0028] Pour the concrete into the flow guide member from the top end of the flow guide member, and move the flow guide member as the liquid level of the concrete slurry between the two oppositely arranged formworks of the pool wall rises, so that the bottom end of the flow guide member gradually approaches the mounting seat until the concrete pouring for the target position is completed.

[0029] Optionally, the steel bar structure of the pool wall includes two mutually parallel steel bar mesh units;

[0030] The step of inserting the flow guide member of the concrete pouring flow guide device between two oppositely arranged formworks of the pool wall, setting the bottom end of the flow guide member near the target position, and detachably fixing the mounting seat on the formwork of the pool wall includes:

[0031] Insert the flow guide member of the concrete pouring flow guide device between two mutually parallel steel bar mesh units, and set the bottom end of the flow guide member near the target position;

[0032] Detachably fix the mounting seat on the two formworks of the pool wall.

[0033] Optionally, before installing the formwork of the pool wall so that the steel bar structure of the pool wall is located between two oppositely arranged formworks of the pool wall, it further includes:

[0034] Fix the water stop belt between two mutually parallel steel bar mesh units;

[0035] Correspondingly, the step of installing the formwork of the pool wall so that the steel bar structure of the pool wall is located between two oppositely arranged formworks of the pool wall includes:

[0036] On the direction perpendicular to the steel bar mesh unit, arrange the formworks of the pool wall on both sides of the steel bar structure of the pool wall;

[0037] Install wedge-shaped wooden squares on the side of the formwork of the pool wall facing the steel bar structure of the pool wall so that the position of the wedge-shaped wooden squares corresponds to the position of the water stop belt.

[0038] Optionally, after pouring the concrete into the flow guide member from the top end of the flow guide member, moving the flow guide member as the liquid level of the concrete slurry between the two oppositely arranged formworks of the pool wall rises, so that the bottom end of the flow guide member gradually approaches the mounting seat until the concrete pouring for the target position is completed, it further includes:

[0039] Remove the formwork of the pool wall and the wedge-shaped wooden square to form a contraction joint at the position corresponding to the wedge-shaped wooden square on the solidified concrete, and fill the contraction joint with a waterproof material. This contraction joint is usually a groove contraction joint.

[0040] The technical solutions provided in this application can achieve the following beneficial effects:

[0041] The concrete pouring diversion device and the construction method of the sewage treatment pool provided in this application directly send the concrete to the target position during the concrete pouring process, enabling the concrete to bypass the steel bar framework during the falling process, reducing the impact force, and reducing the occurrence of segregation. At the same time, since the diversion member is movable relative to the mounting seat, it is difficult for the bottom end of the diversion member to be blocked by the concrete slurry liquid level, enabling the concrete pouring to proceed smoothly and ensuring the construction efficiency.

[0042] The additional technical features and their advantages of this application will be more clearly elaborated in the following description content, or can be understood through the specific practice of this application. Description of the Drawings

[0043] In order to more clearly illustrate the technical solutions of the specific embodiments of this application, the drawings required for use in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0044] Figure 1 Structural schematic diagram of an embodiment of the concrete pouring mold provided in the embodiment of this application;

[0045] Figure 2 Front view structural schematic diagram of an embodiment of the concrete pouring diversion device provided in the embodiment of this application;

[0046] Figure 3 Front view structural schematic diagram of another embodiment of the concrete pouring diversion device provided in the embodiment of this application;

[0047] Figure 4 Top view structural schematic diagram of an embodiment of the concrete pouring diversion device provided in the embodiment of this application;

[0048] Figure 5 Top view structural schematic diagram of an installation method of the water stop provided in the embodiment of this application;

[0049] Figure 6 Flow chart of an embodiment of the construction method of the sewage treatment pool provided in the embodiment of this application.

[0050] Reference Signs:

[0051] 100 - Concrete pouring diversion device;

[0052] 110 - Funnel-shaped end;

[0053] 120 - Handle assembly;

[0054] 121 - Handle;

[0055] 122 - Arc-shaped clamping piece;

[0056] 123 - Bolt;

[0057] 130 - Diversion piece;

[0058] 131 - Smooth outer wall;

[0059] 132 - External thread section;

[0060] 140 - Mounting seat;

[0061] 141 - Card slot;

[0062] 150 - Locking bolt;

[0063] 160 - Clamping block;

[0064] 200 - Reinforcement mesh unit;

[0065] 300 - Pool wall formwork;

[0066] 400 - Wedge-shaped wooden square;

[0067] 500 - Waterstop. Detailed implementation manners

[0068] Next, the technical solutions of the present application will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0069] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application 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, and thus cannot be construed as a limitation to the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0070] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0071] As Figures 2 to 4 shown, an aspect of the present application provides a concrete pouring diversion device 100, including a diversion member 130 and a mounting base 140 for being fixed on an external installation position; the diversion member 130 is in threaded cooperation with the mounting base 140 so that the diversion member 130 can move relative to the mounting base 140 in a first direction; one end of the diversion member 130 in the first direction is used for allowing concrete to flow into the diversion member 130, and the other end of the diversion member is used for extending to a target position; the first direction is the length direction of the diversion member 130.

[0072] When the concrete pouring diversion device 100 provided by the embodiment of the present application is used, before pouring concrete, first insert the diversion member 130 between the formworks 300 of the two side pool walls, and make the bottom end of the diversion member 130 extend to the target position, and then fix the mounting base 140 on the formwork 300 of the pool wall so that the mounting base 140 is not likely to move during the process of moving the diversion member 130. After the concrete pouring diversion device 100 is fixed, pour concrete from the top end of the diversion member 130. During the process of pouring concrete, intermittently or continuously rotate the diversion member 130 as the level of the concrete slurry between the formworks 300 of the two side pool walls rises, so that the diversion member 130 moves gradually upward relative to the mounting base 140 in the first direction (at this time, it is the vertical direction or approximately the vertical direction), that is, make the end of the diversion member 130 for extending to the concrete to be poured move gradually towards the position where the mounting base 140 is located until the concrete pouring is completed, so as to avoid the bottom end of the diversion member 130 being blocked by the concrete slurry level.

[0073] The concrete pouring diversion device 100 provided by the embodiment of the present application directly sends the concrete to the target position during the process of pouring concrete, so that the concrete can bypass the steel bar framework during the falling process, reduce the impact force, and reduce the generation of segregation. At the same time, due to the fact that the diversion member 130 is movable relative to the mounting base 140, it is difficult for the bottom end of the diversion member 130 to be blocked by the concrete slurry level, enabling the concrete pouring to proceed smoothly and ensuring the construction efficiency.

[0074] Optionally, two clamping grooves 141 are formed on the mounting base 140. The two clamping grooves 141 are symmetrically arranged on both sides of the diversion member 130 in the second direction, and the clamping grooves 141 are used for clamping with an external mounting position. Since the external mounting position is usually the formwork 300 of the pool wall, the quick installation and disassembly of the concrete pouring diversion device 100 can be realized by clamping the formwork 300 of the pool wall through the clamping grooves 141, and the torque acting on the mounting base 140 can be overcome during the rotation of the diversion member 130, so that the mounting base 140 is fixed more firmly.

[0075] Optionally, a clamping block 160 is arranged in the clamping groove 141. The concrete pouring diversion device 100 further includes a locking bolt 150. A threaded hole cooperating with the locking bolt 150 is formed on the mounting base 140. The locking bolt 150 extends through the threaded hole into the clamping groove 141. The locking bolt 150 is movably connected to the clamping block 160, so that the clamping block 160 can move in the second direction under the drive of the locking bolt 150. After the clamping groove 141 is clamped with the formwork 300 of the pool wall, the clamping block 160 can be driven to move by rotating the locking bolt 150, so that the clamping block 160 moves along the second direction to squeeze the formwork 300 of the pool wall, and then the formwork 300 of the pool wall is firmly locked in the clamping groove 141. When it is necessary to remove the mounting base 140 from the formwork 300 of the pool wall, rotate the locking bolt 150 to drive the clamping block 160 to move away from the formwork 300 of the pool wall to release the extrusion of the formwork 300 of the pool wall, so that the mounting base 140 and the formwork 300 of the pool wall are easily separated.

[0076] Optionally, the clamping block 160 has an extrusion surface for cooperating with the formwork 300 of the pool wall, and the extrusion surface is a plane. The tightness of the cooperation between the clamping block 160 and the formwork 300 of the pool wall is increased, thereby improving the reliability of the connection between the mounting base 140 and the formwork 300 of the pool wall.

[0077] Optionally, the concrete pouring diversion device 100 further includes a locking bolt 150. A threaded hole cooperating with the locking bolt 150 is formed on the mounting base 140. The locking bolt 150 extends through the threaded hole into the clamping groove 141. Two locking bolts 150 are installed at the same clamping groove 141, and the two locking bolts 150 are arranged oppositely.

[0078] Optionally, the middle part of the flow guide member 130 in the first direction is an external thread section 132, and both ends of the flow guide member 130 in the first direction have smooth outer walls 131. The external thread section 132 can form a threaded fit with the mounting seat 140. Since one end of the flow guide member 130 is used to receive concrete and the other end is used to deliver the concrete to the target position, the outer walls may be in direct contact with the concrete. By setting the outer walls as smooth outer walls 131, the concrete is not likely to hang on the flow guide member 130, keeping the flow guide member 130 clean to a certain extent, and thus enabling the concrete pouring flow guide device 100 to operate better. In the embodiment of the present application, the flow guide member 130 is preferably a cylindrical member. Of course, the flow guide member 130 can also be a polygon such as a triangle or a quadrilateral in cross-section, as long as the middle part and / or the lower half of the flow guide member 130 is a cylindrical structure with external threads.

[0079] Optionally, one end of the flow guide member 130 for the concrete to flow into in the first direction is a funnel-shaped end 110. This makes it easier for the external feeding device to accurately insert into the flow guide member 130 when feeding the concrete into the flow guide member 130, improving the construction efficiency.

[0080] Optionally, a handle assembly 120 is installed on the flow guide member 130. The handle assembly 120 includes two arc-shaped clamping pieces 122 and two handles 121. The two arc-shaped clamping pieces 122 are connected by bolts 123, and the concave side of one arc-shaped clamping piece 122 is arranged opposite to the concave side of the other arc-shaped clamping piece 122, so that the flow guide member 130 is clamped between the two arc-shaped clamping pieces 122. Each of the two arc-shaped clamping pieces 122 is installed with one handle 121. The two arc-shaped clamping pieces 122 are connected by bolts 123, and thus the clamping force of the two arc-shaped clamping pieces 122 on the flow guide member 130 can be adjusted by adjusting the bolts. By providing two handles 121, workers can hold one handle 121 in each hand for operation, facilitating construction.

[0081] Optionally, the flow guide member 130 includes a receiving cylinder and a flow guide cylinder sleeved together, so that the receiving cylinder and the flow guide cylinder can move relative to each other in the first direction. External threads that cooperate with the mounting seat 140 are formed on the outer wall of the flow guide cylinder. During use, the top end of the receiving cylinder can be fixed, and by rotating the flow guide cylinder, when the flow guide cylinder moves relative to the mounting seat 140, it also moves relative to the receiving cylinder in the same direction. Thus, the overall telescopic movement of the flow guide member 130 is realized. In this way, it is not necessary for the external feeding device to move synchronously due to the overall movement of the flow guide member 130, increasing the convenience of concrete pouring.

[0082] Optionally, a rotating handle for rotating the draft tube is fixed on the draft tube, and a fixed handle is fixed on the receiving tube. During the process of pouring concrete, the fixed handle can be manually held, or the fixed handle can be fixed to an external installation position. Then, as the concrete pouring progresses, the rotating handle is moved to achieve the movement of the draft tube relative to the receiving tube and the mounting seat 140.

[0083] As Figure 1 shown, another aspect of the present application provides a concrete pouring mold, including a pool wall formwork 300, a pool wall steel bar structure fixed to the foundation, and the concrete pouring and guiding device 100 provided in the embodiment of the present application. The bottom ends of the pool wall steel bar structure and the guiding member 130 are located between two relatively arranged pool wall formworks 300, and the mounting seat 140 is detachably fixed to the pool wall formwork 300.

[0084] The concrete pouring mold provided by the embodiment of the present application adopts the concrete pouring and guiding device 100 provided by the embodiment of the present application. By directly sending the concrete to the target position during the process of pouring concrete, the concrete can bypass the steel bar framework during the falling process, reducing the impact force and reducing the generation of segregation. At the same time, due to the relative movement of the guiding member 130 with respect to the mounting seat 140, it is difficult for the bottom end of the guiding member 130 to be blocked by the concrete slurry surface, enabling the concrete pouring to proceed smoothly and ensuring the construction efficiency.

[0085] As Figure 6 shown, the third aspect of the present application provides a construction method for a sewage treatment pool, specifically a construction method for pouring the concrete of the pool wall of the sewage treatment pool. The method is implemented by applying the concrete pouring and guiding device 100 provided by the embodiment of the present application, and the method includes:

[0086] Step 10: Binding the pool wall steel bar structure;

[0087] Step 20: Installing the pool wall formwork 300 so that the pool wall steel bar structure is located between two relatively arranged pool wall formworks 300;

[0088] Step 30: Inserting the guiding member 130 of the concrete pouring and guiding device 100 between two relatively arranged pool wall formworks 300, setting the bottom end of the guiding member 130 near the target position, and detachably fixing the mounting seat 140 to the pool wall formwork 300;

[0089] Step 40: Pouring the concrete into the guiding member 130 from the top end of the guiding member 130, and moving the guiding member 130 as the concrete slurry surface between two relatively arranged pool wall formworks 300 rises, so that the bottom end of the guiding member 130 gradually approaches the mounting seat 140 until the concrete pouring for the target position is completed.

[0090] In the construction method of the sewage treatment pool provided by the embodiment of the present application, the concrete pouring diversion device 100 provided by the embodiment of the present application is used to directly send the concrete to the target position, so that the concrete can bypass the steel bar framework during the falling process, reduce the impact force, and reduce the generation of segregation. At the same time, since the diversion member 130 is movable relative to the mounting seat 140, the bottom end of the diversion member 130 is difficult to be blocked by the concrete slurry surface, so that the concrete pouring can proceed smoothly, ensuring the construction efficiency.

[0091] Optionally, the pool wall steel bar structure includes two parallelly arranged steel bar mesh units 200;

[0092] Step 30 includes:

[0093] Step 31: Insert the diversion member 130 of the concrete pouring diversion device 100 into the two parallelly arranged steel bar mesh units 200, and set the bottom end of the diversion member 130 near the target position;

[0094] Step 32: Detachably fix the mounting seat 140 on the two pool wall templates 300.

[0095] As Figure 5 shown, optionally, before step 20, it further includes:

[0096] Step 50: Fix the water stop belt 500 between the two parallelly arranged steel bar mesh units 200. The water stop belt 500 can be a shrinkage joint rubber water stop belt;

[0097] Correspondingly, step 20 includes:

[0098] Step 21: On both sides of the pool wall steel bar structure in a direction perpendicular to the steel bar mesh unit 200, set the pool wall templates 300.

[0099] Step 22: Install the wedge-shaped wooden square 400 on the side surface of the pool wall template 300 facing the pool wall steel bar structure, so that the position of the wedge-shaped wooden square 400 corresponds to the position of the water stop belt 500. The wedge-shaped wooden square 400 is a strip-shaped structure.

[0100] Optionally, after step 40, it further includes:

[0101] Step 60: Remove the pool wall template 300 and the wedge-shaped wooden square 400 to form a groove corresponding to the wedge-shaped wooden square 400 on the solidified concrete, which is the set shrinkage joint, and fill the shrinkage joint with waterproof material.

[0102] In the embodiment of the present application, according to the medium in the sewage treatment pool, first select the shrinkage rubber waterstop. If the medium is weak acid or weak alkali, select the chloroprene rubber waterstop; if there is an oil medium, select the nitrile rubber waterstop. According to the water level of the pool, select the width and thickness of the waterstop. The water level of the Deliman process pool of this construction technology does not exceed 8m. According to the specification, the width of the waterstop is not less than 300mm and the thickness is not less than 6mm. Generally, a chloroprene rubber waterstop with a width of 330mm and a thickness of 10mm is selected. The project is located in the northern region with cold weather, so a cold-resistant waterstop is selected with a temperature range of -40 to 60℃. If it is located in the southern region, a common waterstop can be selected with a temperature range of -25 to 60℃. For the on-site acceptance of materials, the deviation of the central circular hole of the waterstop is not allowed to exceed one-third of the wall thickness, and the surface is not allowed to have defects such as cracking, sponginess, dents, bubbles, impurities, and bright scars, and the material certificate is complete.

[0103] When installing the rubber waterstop, you must be careful to avoid the waterstop being pierced by the steel bar head or burned by electric welding. It is forbidden to drill holes, nail nails, or pass wires on the waterstop body to damage the body. The installation position must be accurate and fixed firmly. After the steel bars are tied, use the expansion joint to construct the steel bars to initially fix the waterstop, and then use the positioning steel bars to position it to ensure that the position of the waterstop in the concrete is correct and secure. The fixing method of the rubber waterstop is based on the principle of not damaging the effective waterproof part of the waterstop body.

[0104] The construction of the circular secondary sedimentation tank does not follow the conventional construction method of separating the expansion joints into blocks. Instead, the bottom plate and the pool wall are poured with concrete at one time to ensure the quality of the radius and flatness of the concrete track (top of the pool wall) of the mixer. The expansion joint foam board is reinforced with a dense mesh on both sides, and then reinforced and positioned with positioning steel bars. The polyethylene foam board is used in conjunction with the structural steel bars of the expansion joint during installation to prevent uneven force and movement or breakage during the pouring of concrete. During the pouring of concrete, both sides of the expansion joint are unloaded at the same time to ensure that the height difference on both sides is not too large, so as to avoid excessive pressure caused by excessive height difference, thereby damaging the foam board. The positioning steel bars must not be exposed after demolding, and the thickness of the steel bar protection layer must be ensured when installing the positioning bars.

[0105] The spacing between expansion joints is generally about 30m. Internal stress will be generated between two expansion joints due to concrete shrinkage. When the internal stress is greater than the tensile limit of concrete, concrete cracks will be generated, which will cause concrete leakage. For this reason, it is necessary to set concrete contraction joints so that the cracks generated appear in the contraction joints. Contraction joints are set on the pool wall, and the spacing is generally not more than 10m.

[0106] Contraction joints and expansion joints are different. The steel bars at the contraction joints do not need to be disconnected, nor do they need to be separated by foam boards. The structure is simple and the construction is convenient. Neoprene waterstop strips are installed in the contraction joints.

[0107] The shrinkage joint of the concrete pool wall, the 30×30mm vertical small grooves on both sides, use 30×30mm wooden strips to nail on the pool wall formwork 300 when supporting the pool wall formwork 300 (the wooden strips are trapezoidal, small inside and large outside, easy to remove). After pouring concrete and removing the formwork, the wooden strips are exposed and easy to remove. The concrete cross-section is reduced here, and the stress is concentrated and greater than other places. When the concrete shrinks, it is easy to crack here. The positioning steel bars of the shrinkage joint waterstop are generally two, one on the top and one in the middle. The starting point below is above the foundation bottom plate steel bar. According to the actual situation, the positioning steel bars can be appropriately increased, but not too much, otherwise the shrinkage joint function will be lost. The positioning steel bars clamp and straighten the waterstop to ensure verticality, and the wooden strips are installed in the middle of the waterstop.

[0108] In order to better illustrate the solution provided by the present application, the present application also provides an application example of a three-section tensioning device, a pool wall formwork 300 assembly and a sewage treatment pool construction method.

[0109] In my country, wastewater treatment in oil refining and chemical projects mostly adopts Deliman process, which fully combines wastewater treatment process with refining process or chemical process to form a whole, using "waste" to treat "waste" and realize the transformation of waste into treasure. The sewage treatment plant is both their end and their starting point, which not only reduces the direct operating costs of enterprises, but also effectively reduces the emission of pollutants.

[0110] During the construction of sewage treatment pools, it is important to control the construction quality of the pools to prevent the pools from leaking, polluting the environment, and affecting the service life of the project. Therefore, effective measures must be taken to ensure the construction quality and progress. The main construction technologies are: ① The use of shrinkage compensating concrete can effectively compensate for concrete shrinkage and effectively prevent concrete shrinkage cracking; ② The use of three-section combined water-stop tie rods can be reused to save construction costs; ③ The use of this construction technology effectively ensures the construction quality of expansion joints and contraction joints and avoids leakage; ④ The use of self-made concrete chute (string tube) construction effectively delivers concrete to the pouring site to avoid concrete segregation; ⑤ The use of a self-made water sprinkling (spraying) maintenance system ensures the quality of concrete maintenance; ⑥ The bottom plate and the wall of the second sedimentation tank have expansion joints, and concrete is poured as a whole, which speeds up the construction progress and ensures the radius and flatness quality of the scraper concrete track (top of the pool); ⑦ The biochemical pool is divided by the expansion joint and the water section is constructed, which speeds up the construction speed and improves the utilization rate of turnover materials; ⑧ The use of this technology for anti-seepage and plugging eliminates the worries of the pool being put into use and ensures the normal use of the pool in sewage treatment.

[0111] In this application example, (1) the construction and installation technology of the rubber waterstop ensures that the expansion joint is watertight and leak-proof.

[0112] Before installing the rubber waterstop, first tie the steel bars. When the steel bars enter the site, they must have a factory certificate and be used after passing the re-inspection on site. Before cutting the steel bars, the technical personnel should review the cutting list of the steel bar team. For more complex cases, lofting should be carried out for determination. At the same time, the technical personnel should conduct a comprehensive and systematic technical disclosure and safety disclosure to the steel bar operation team. During the construction of the steel bars, the construction should be carried out strictly in accordance with the requirements of the design drawings and the construction acceptance specifications, and process control should be carried out, combining patrol inspection, sampling inspection and full inspection, and rectify problems in time. Especially for the circular pool wall, when tying the steel bars, the radius dimension deviation must be controlled within the allowable range to prevent affecting the subsequent processes and making it impossible to adjust properly during formwork erection.

[0113] For the installation of the rubber waterstop at the expansion joint of the water tank, the traditional construction method is likely to cause damage to the rubber waterstop itself or inaccurate positioning, resulting in tearing under stress and water seepage. With this construction method, the installation position is accurate and firm. During construction, the structural steel bars at the expansion joint are used for initial fixation, and then positioning steel bars are used for precise positioning and reinforcement to ensure that the waterstop does not shift or get damaged during the concrete pouring process, which is beneficial for the rubber waterstop to expand and contract freely under stress.

[0114] For the construction of the secondary sedimentation tank of a large circular water tank, instead of the conventional construction method of separating and segmenting from the expansion joint, the concrete of the bottom slab and the pool wall is poured integrally at one time, which ensures the construction quality of the radius and flatness of the concrete track (top of the pool wall) of the agitator.

[0115] According to the medium in the sewage treatment water tank, first select the rubber waterstop. If the medium is weak acid or weak base, select the chloroprene rubber waterstop; if there is an oil medium, select the nitrile rubber waterstop. Select the width and thickness of the waterstop according to the water level height of the water tank. The highest water level of the Degremont process water tank in this construction technology does not exceed 8m. According to the specification requirements, the width of the waterstop is not less than 300mm and the thickness is not less than 6mm. Generally, select the chloroprene rubber waterstop with a width of 330mm and a thickness of 10mm. The project is located in the northern region with cold weather, so select the cold-resistant waterstop with a temperature range of -40 to 60°C. If it is located in the southern region, the ordinary waterstop can be selected with a temperature range of -25 to 60°C. For the acceptance of materials entering the site, the deviation of the central circular hole of the waterstop is not allowed to exceed one-third of the wall thickness, and there are no defects such as cracking, sponginess, indentation, bubbles, impurities, and obvious scars on the surface, and the material certificate is complete.

[0116] When installing the rubber waterstop, care must be taken to avoid piercing the waterstop with steel bar heads or burning it with electric welding. It is prohibited to make holes, drive nails, or pass wires through the waterstop body to damage the body. The installation position should be accurate and firmly fixed. After the steel bars are tied, use the construction steel bars of the expansion joint to initially fix the waterstop, and then use positioning steel bars for positioning to ensure the correct and reliable position of the waterstop in the concrete. The fixing method of the rubber waterstop should be based on the principle of not damaging the effective waterproof part of the waterstop body.

[0117] For the construction of the circular secondary sedimentation tank, instead of the conventional construction method of separating and segmenting from the expansion joint, the concrete of the bottom slab and the pool wall is poured in one go. It is necessary to ensure the quality of the radius and flatness of the concrete track (top of the pool wall) of the agitator. The two sides of the expansion joint foam board are strengthened with dense mesh, and then the polyethylene foam board is reinforced and positioned with positioning steel bars. During installation, it is used in conjunction with the construction steel bars of the expansion joint to prevent uneven stress and movement or breakage during the concrete pouring process. During the concrete pouring process, the materials are fed simultaneously on both sides of the expansion joint to ensure that the height difference between the two sides is not too large, avoiding excessive pressure caused by too large a height difference and thus damaging the foam board. After demoulding, the positioning steel bars shall not be exposed, and the thickness of the steel bar protection layer shall be considered when installing the positioning steel bars.

[0118] (2) The repeated use of the three-section combined tension device is beneficial to reducing construction costs and increasing efficiency

[0119] Using the conventional traditional construction method for the tension bolts of the water tank, it is difficult to remove the exposed threaded ends of the tension bolts, which increases the workload, and the butt threaded ends cannot be reused. Using the three-section combined tension bolt reduces the workload of processing the threaded ends of the tension bolt and can be reused, reducing the construction cost.

[0120] Using the three-section combined tension bolt reduces the workload of processing the tension bolt head and can be reused. The length of the middle section plus the thickness of the rubber gaskets at both ends is the thickness of the pool wall. The thread lengths at both ends should be 200 - 250 mm. A water stop ring is welded to the middle section. The spacing of the tension bolts (the horizontal and vertical spacing is generally 500 mm) should be determined by calculation. The horizontal row should be horizontal and the vertical row should be vertical. After demoulding, the spacing of the tension bolt holes on the concrete surface is uniform, horizontal and vertical.

[0121] For the three-section combined tension bolt, before removing the formwork of the pool wall, screw off the exposed threaded ends. After demoulding, chisel off the rubber gaskets and compact and smooth with waterproof mortar. If the conventional construction method is used with ordinary water stop tension bolts, when removing the exposed threaded ends of the tension bolts, they need to be hammered off before demoulding, which cannot be reused, and it is difficult to remove the threaded ends at the root.

[0122] The height of the formwork erection for the secondary sedimentation tank wall should be the same as or slightly higher than the height of the concrete surface of the agitator track. After the formwork erection and reinforcement are completed, use a level to check. If there are high parts on the tank wall formwork, drive nails (spacing 500 mm) on the inner side of the tank wall formwork, and the positions of the nails are the elevation of the concrete surface. The concrete finishing should go through initial finishing, intermediate finishing, and final finishing. The flatness is controlled by a screed. During initial finishing, the elevation of the concrete surface needs to be measured with a level and strictly controlled. Through the construction of the secondary sedimentation tank, dissolved air flotation tank, and oil removal tank, as well as the inspection of the track concrete surface and radius, this construction technology has achieved the expected results and was successful in one attempt during installation and commissioning.

[0123] (3) Application of shrinkage-compensating concrete, effectively compensating for concrete shrinkage

[0124] Ordinary concrete is prone to shrinkage and shrinkage cracks. The use of shrinkage-compensating concrete effectively compensates for concrete shrinkage, thus avoiding shrinkage cracks caused by concrete shrinkage.

[0125] Shrinkage-compensating concrete: The use of shrinkage-compensating concrete effectively compensates for concrete shrinkage, with the expansion rate limited to 0.015 - 0.03%. For the bottom slab, it is not less than 0.015%, and for the tank wall, it is 0.02 - 0.03%. The concrete properties need to be determined through tests, and the raw materials should comply with the relevant specifications. Now commercial concrete is used, and the technical requirements for impermeable concrete should be sent to the commercial concrete station in advance for early trial mixing and testing. It can be used in the project only after meeting the requirements.

[0126] (4) Self-made concrete dropping chute is adopted for the concrete pouring of the tank wall, effectively avoiding segregation

[0127] In the traditional concrete pouring process, the concrete is directly dropped into the tank wall. When dropping, the concrete is blocked by the impact force and the steel bar framework or due to being too high, resulting in segregation. By using a self-made concrete dropping chute and inserting it into the tank wall (spacing about 5 m), the concrete is directly sent to the pouring location from the chute, avoiding segregation. The self-made concrete chute is simple, economical, easy to move, and has a high turnover rate.

[0128] Concrete anti-segregation measures: During the concrete pouring process, avoid segregation caused by the impact force and the steel bar framework blocking the concrete when dropping. When the dropping height exceeds 2 m, use a concrete dropping chute or a chute. During the construction of the tank wall concrete, a self-made chute made of PVC pipe is inserted into the tank wall at a spacing of about 5 m, and the pump pipe of the pump truck is inserted into the chute. The concrete is directly sent to the pouring location from the pipe, avoiding segregation. The self-made concrete chute in this construction technology is simple, economical, easy to move, and has a high turnover rate.

[0129] (5) Self-spraying and self-sprinkling water curing system is adopted for concrete curing, ensuring the quality of concrete curing

[0130] Conventional concrete curing uses workers to water the pool wall, which dries quickly due to wind and sun, causing shrinkage cracks on the concrete surface and affecting the quality of the concrete. A self-made concrete watering curing system is used, and a self-drenching system is set along the periphery or in the middle of the pool wall to keep the concrete surface moist. Through the practice of multiple projects, the use of porous watering pipelines for 24-hour uninterrupted curing has significantly reduced the cracks on the pool wall compared to manual watering curing, especially in the hot summer and windy seasons. This curing method is particularly superior.

[0131] The concrete curing adopts the self-spraying and self-drenching system: after the large-area concrete pouring such as the bottom plate and the top plate is completed, the cotton felt is promptly covered and watered for curing. After the pool wall is demolded, the conventional cotton felt covering and watering curing is adopted. After the practice of multiple projects, the effect is not ideal. This construction technology adopts a self-made concrete watering and curing system: a φ50 pipe is used to introduce water from the water source, and then a φ20 pipe is used to divide several branches, which are set along the edge or middle of the pool wall. Holes (porous sprinkler pipes) are punched on the φ20 pipe with a spacing of about 100mm, connected to the water source, and automatic watering and curing are ensured for 24 hours. When it is difficult to manually water the pool wall, automatically sprinkle water and maintain it, the pool wall formwork is removed after the concrete curing period expires, and the pool wall formwork is used to moisturize and maintain the concrete. The disadvantage of this is that the turnover rate of the turnover material is reduced. Through the practice of many projects, it is found that the arrangement of multiple watering pipelines for 24-hour uninterrupted maintenance can produce fewer cracks on the pool wall than manual watering maintenance. This maintenance method is particularly superior in the hot summer and windy seasons.

[0132] (6) Add concrete shrinkage joints to the pool wall. Shrinkage cracks appear at the shrinkage joints to prevent water seepage.

[0133] In traditional pool construction, there are no shrinkage joints on the pool wall. When the concrete shrinks, shrinkage cracks are likely to form and water seepage occurs. By adding shrinkage joints to the pool wall and installing rubber waterstops in the shrinkage joints, shrinkage cracks caused by concrete shrinkage appear at the shrinkage joints, effectively preventing the phenomenon of cracks and water seepage caused by shrinkage of the pool wall.

[0134] The spacing between expansion joints is generally about 30m. Internal stress will be generated between two expansion joints due to concrete shrinkage. When the internal stress is greater than the tensile limit of concrete, concrete cracks will be generated, which will cause concrete leakage. For this reason, it is necessary to set concrete contraction joints so that the cracks generated appear in the contraction joints. Contraction joints are set on the pool wall, and the spacing is generally not more than 10m.

[0135] Contraction joints and expansion joints are different. The steel bars do not need to be disconnected, nor do they need to be separated by foam boards. The structure is simple and the construction is convenient. Neoprene waterstop is installed in the contraction joint to achieve a water-stopping effect.

[0136] Concrete pool wall shrinkage joint, 30×30mm vertical small grooves on both sides. When erecting the pool wall formwork, 30×30mm wooden strips are nailed to the pool wall formwork (the wooden strips are trapezoidal, smaller inside and larger outside, easy to remove). After the concrete is poured and the formwork is removed, the wooden strips are exposed and easy to take out. The concrete cross-section is reduced here, and the stress is more concentrated and greater than other places. When the concrete shrinks, it is easy to crack here. The positioning steel bars of the shrinkage joint waterstop are generally two, one on the upper part and one in the middle. The starting point of the lower part is above the foundation slab steel bars. According to the actual situation, the positioning steel bars can be appropriately increased, but not too many, otherwise the function of the shrinkage joint will be lost. The positioning steel bars clamp and straighten the waterstop to ensure verticality, and the wooden strips are installed in the middle part of the waterstop.

[0137] (7)Repair of concrete defects and seepage, ensuring no worries after commissioning in the future

[0138] Repair of concrete defects and treatment of seepage and leakage during the water testing process. Traditional treatment methods are prone to cause subsequent seepage. By using multiple treatment methods or a combination of them for repair, it is ensured that there is no seepage or leakage during the project operation. From the commissioning situation of several sewage treatment plants, the effect is obvious and there are no worries.

[0139] Repair of concrete defects before water injection into the pool: Check the concrete cracks and construction cold joints, chisel a "V" groove with a depth of 10 - 20mm and a width of 10 - 20mm from the joints, clean, rinse, and dry. Use epoxy resin: polysulfide rubber: cement: sand (ratio 10:3:12.5:28). After mixing the sand and cement in proportion and stirring evenly, mix the epoxy resin and polysulfide rubber in proportion, then incorporate them into the mixed mortar and stir. Finally, dilute the mixed mortar with a small amount of acetone to a moderate consistency. Embed the mixed epoxy resin mortar into the chiseled, washed, and dried concrete chiseled groove, and compact and smooth it. Repair of honeycombing and pockmarking: Chisel off the loose stones, rinse clean, and repair with cement mortar added with micro-expansion agent, or repair with water-stop or leak-sealing king, and carry out maintenance after repair. Epoxy resin can also be used for repair. Repair of holes: After chiseling off the loose stones in the honeycombing and pockmarking, if the situation is more serious and holes are formed, after washing clean, repair with high-strength non-shrinking grouting material.

[0140] Water storage and leakage plugging of water tank (plugging leakage with water): For repairing concrete leakage by grooving, after the water tank is filled with water and there is leakage from concrete cracks, use quick-setting waterproof materials for repair. Chisel a small groove 20 mm deep along the leaking crack, and after grooving, use quick-setting waterproof materials such as water-stop and leakage-stopping king for plugging. For repairing concrete leakage by grouting, use a high-pressure grouting pump to inject polyurethane or epoxy resin waterproof slurry to fill the concrete gaps with slurry, which expands when encountering water and blocks the leakage of water along the gaps. The length of the grouting needle is 90 mm, the drilling depth is 80 mm, insert the grouting needle and tighten it with a wrench, and continue grouting until the slurry overflows from the hole or gap, and then grout again after a few minutes. During the repair, continue until there is no water seepage or leakage.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. Concrete pouring diversion device, characterized in that, It includes a flow guide member and a mounting base for fixing on an external mounting position; the flow guide member is in threaded cooperation with the mounting base so that the flow guide member can move relative to the mounting base in a first direction; in the first direction, one end of the flow guide member is for concrete to flow into the flow guide member, and the other end of the flow guide member is for extending to a target position; the first direction is the length direction of the flow guide member, and the flow guide member includes a receiving cylinder and a flow guide cylinder sleeved together so that the receiving cylinder and the flow guide cylinder can move relative to each other in the first direction; an external thread cooperating with the mounting base is formed on the outer wall of the flow guide cylinder, so that the top end of the receiving cylinder is fixed, and when the flow guide cylinder moves relative to the mounting base by rotating the flow guide cylinder, the flow guide cylinder also moves in the same direction relative to the receiving cylinder; a rotating handle for rotating the flow guide cylinder is fixed on the flow guide cylinder, and a fixed handle is fixed on the receiving cylinder. The cross-section of the flow guide member is triangular or quadrilateral, and only the middle part and / or the lower half of the flow guide member is a cylindrical structure with an external thread.

2. The concrete pouring diversion device according to claim 1, characterized in that, Two clamping grooves are formed on the mounting base, and the two clamping grooves are symmetrically arranged on both sides of the flow guide member in a second direction, and the clamping grooves are for clamping with an external mounting position.

3. The concrete pouring diversion device according to claim 2, characterized in that, A clamping block is arranged in the clamping groove. The concrete pouring flow guide device further includes a locking bolt. A threaded hole cooperating with the locking bolt is formed on the mounting base. The locking bolt penetrates through the threaded hole and extends into the clamping groove. The locking bolt is movably connected with the clamping block so that the clamping block can move in the second direction driven by the locking bolt.

4. The concrete pouring diversion device according to claim 2, characterized in that, The concrete pouring flow guide device further includes a locking bolt. A threaded hole cooperating with the locking bolt is formed on the mounting base. The locking bolt penetrates through the threaded hole and extends into the clamping groove. Two locking bolts are installed at the same clamping groove, and the two locking bolts are arranged oppositely.

5. The concrete pouring diversion device according to any one of claims 1-4, characterized in that, The middle part of the flow guide member in the first direction is an external thread section, and both ends of the flow guide member in the first direction have a smooth outer wall.

6. The concrete pouring diversion device according to any one of claims 1-4, characterized in that, A handle assembly is installed on the flow guide member. The handle assembly includes two arc-shaped clamping pieces and two handles; the two arc-shaped clamping pieces are connected by bolts, and the concave side of one arc-shaped clamping piece is arranged opposite to the concave side of the other arc-shaped clamping piece so that the flow guide member is clamped between the two arc-shaped clamping pieces; one handle is installed on each of the two arc-shaped clamping pieces.

7. Construction method of sewage treatment pool, characterized in that, The method is implemented by using the concrete pouring flow guide device as described in any one of claims 1-6. The method includes: Binding the steel bar structure of the pool wall; Installing the pool wall formwork so that the steel bar structure of the pool wall is located between two oppositely arranged pool wall formworks; Inserting the flow guide member of the concrete pouring flow guide device between two oppositely arranged pool wall formworks, setting the bottom end of the flow guide member near the target position, and detachably fixing the mounting base on the pool wall formwork; Pour the concrete into the flow guide member from the top of the flow guide member, and move the flow guide member as the concrete slurry level between the two oppositely arranged pool wall forms rises, so that the bottom end of the flow guide member gradually approaches the mounting seat until the concrete pouring for the target position is completed.

8. The construction method of the sewage treatment pool according to claim 7, characterized in that, The pool wall steel bar structure includes two parallelly arranged steel bar mesh units; Insert the flow guide member of the concrete pouring flow guide device between the two oppositely arranged pool wall forms, and set the bottom end of the flow guide member near the target position. Removably fixing the mounting seat on the pool wall form includes: Insert the flow guide member of the concrete pouring flow guide device between two parallelly arranged steel bar mesh units, and set the bottom end of the flow guide member near the target position; Removably fix the mounting seat on the two pool wall forms.

9. The sewage treatment pool construction method according to claim 8, wherein Before installing the pool wall form so that the pool wall steel bar structure is located between the two oppositely arranged pool wall forms, it further includes: Fix the water stop belt between two parallelly arranged steel bar mesh units; Correspondingly, installing the pool wall form so that the pool wall steel bar structure is located between the two oppositely arranged pool wall forms includes: On the direction perpendicular to the steel bar mesh unit, arrange the pool wall forms on both sides of the pool wall steel bar structure; Install wedge-shaped wooden squares on the side surface of the pool wall form facing the pool wall steel bar structure so that the position of the wedge-shaped wooden squares corresponds to the position of the water stop belt; After pouring the concrete into the flow guide member from the top of the flow guide member and moving the flow guide member as the concrete slurry level between the two oppositely arranged pool wall forms rises, so that the bottom end of the flow guide member gradually approaches the mounting seat until the concrete pouring for the target position is completed, it further includes: Remove the pool wall form and the wedge-shaped wooden squares to form shrinkage joints at the positions corresponding to the wedge-shaped wooden squares on the solidified concrete, and fill waterproof materials in the shrinkage joints.

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