Prefabricated reinforced concrete silo and construction method thereof

Abstract

The invention relates to a prefabricated reinforced concrete silo and a construction method thereof.A silo body of the silo is provided with a plurality of silo layers formed by mutually assembling and connecting arc-shaped reinforced concrete prefabricated pieces, positioning steel bars are arranged on supports of the silo, and positioning through holes are formed in the reinforced concrete prefabricated pieces; positioning during assembly of the prefabricated pieces is achieved through the positioning steel bars and the positioning through holes which are matched with each other, positioning is simple, convenient and rapid, the bin body assembly efficiency can be effectively improved, the two adjacent barrel layers of the bin body are bonded and fixed through cement mortar, the two adjacent prefabricated pieces of the same barrel layer are matched through concave-convex spigots and locked through locking bolts, and the bin body assembly efficiency can be effectively improved. Every two upper and lower adjacent prefabricated pieces are connected in a sleeve grouting mode, the connecting strength of the prefabricated pieces can be effectively improved, and the structural stability of the silo is improved.

Description

Technical Field

[0001] The invention relates to the technical field of storage silos, and in particular to a prefabricated assembled reinforced concrete silo and a construction method thereof. Background Art

[0002] Silos are important structures used to store bulk materials and are also one of the main forms of warehouses. According to the structural materials, they can be divided into reinforced concrete silos, steel plate silos, masonry silos, etc. Compared with other types of silos, reinforced concrete silos not only have good air tightness and strong moisture, rain and corrosion resistance, but are also less affected by external temperature differences, have longer service life, and lower maintenance costs. Therefore, they are widely used in material storage in industrial and agricultural fields.

[0003] At present, reinforced concrete silos are mainly constructed by on-site casting. Moreover, for reinforced concrete silos, the on-site casting construction process mainly adopts the slipform construction process. The slipform needs to build a cumbersome and complex formwork support structure, the construction process is complicated, the construction cost is high, and once the slipform construction starts pouring, it is not allowed to be interrupted and continuous operation must be carried out, which is labor-intensive for construction workers.

[0004] With the development of science and technology, prefabricated construction methods have been gradually applied to the construction of reinforced concrete silos. However, in order to increase the volume, silos are usually cylindrical structures. When constructing a circle, the prefabricated construction method has problems such as difficulty in positioning the prefabricated pieces, weak connections between the prefabricated pieces, poor waterproofing at the joints, and due to the high height of the silo, the center of gravity is high, and the earthquake and wind resistance are poor. Summary of the invention

[0005] In view of this, in order to overcome the shortcomings of the prior art problems, the present invention provides a prefabricated reinforced concrete silo, the silo body of the silo has multiple cylinder layers that are assembled and connected to each other by arc-shaped reinforced concrete prefabricated sheets, positioning steel bars are arranged on the supports of the silo, and positioning holes are arranged on the reinforced concrete prefabricated sheets. The positioning of the prefabricated sheets during assembly is achieved by the positioning steel bars and the positioning holes that cooperate with each other. The positioning is simple, convenient and fast, and the assembly efficiency of the silo body can be effectively improved. The adjacent cylinder layers of the silo body are bonded and fixed by cement mortar, and the adjacent prefabricated sheets in the same cylinder layer are matched by concave and convex stoppers and locked by locking bolts. The upper and lower adjacent prefabricated sheets are connected by sleeve grouting, which can effectively improve the connection strength of the prefabricated sheets and enhance the structural stability of the silo. At the same time, the present invention also provides a construction method for a prefabricated reinforced concrete silo.

[0006] To achieve the above purpose, the technical solution of the prefabricated reinforced concrete silo provided by the present invention is: A prefabricated reinforced concrete silo, comprising: a support, a silo body and a silo roof structure, wherein the support is a cast-in-place reinforced concrete support, the silo body is fixedly arranged on the support, the top of the silo body is fixedly arranged with a silo roof structure, and the silo roof structure is a prefabricated silo roof structure, wherein: The silo body has at least two layers of cylindrical layers arranged in sequence, the adjacent cylindrical layers are bonded and fixed by cement mortar, the bottom cylindrical layer is bonded and fixed to the upper end surface of the support by cement mortar, and the top cylindrical layer is bonded and fixed to the silo roof structure by cement mortar. The cylinder layer has a plurality of arc-shaped reinforced concrete prefabricated sheets connected in sequence along the circumferential direction, one side of the prefabricated sheet has a concave stopper / convex stopper, and the other side of the prefabricated sheet has a convex stopper / concave stopper. Two adjacent prefabricated sheets are matched through the concave and convex stoppers and locked through locking bolts and pressure plates. The middle of the prefabricated sheet is provided with positioning through holes arranged along the height direction of the prefabricated sheet, and the upper end of the support is provided with a plurality of positioning steel bars, and the positioning steel bars and the positioning through holes cooperate with each other to realize the positioning of the prefabricated sheet.

[0007] Furthermore, the support comprises a seat plate and a column located at the lower end of the seat plate for supporting the seat plate, the column is buried in the foundation, and the upper end of the column is fixed to the seat plate. The middle part of the upper end of the seat plate has an upwardly protruding truncated cone and a plurality of positioning steel bars, the plurality of positioning steel bars are evenly arranged along the circumference of the truncated cone, the lower end of the positioning steel bar is buried in the seat plate, and the upper end of the positioning steel bar extends upward. The upper end of the seat plate is also provided with a steel bar joint exposed upwards, and the exposed steel bar joint is connected to the prefabricated sheet of the lowest cylinder layer through sleeve grouting.

[0008] Furthermore, it also includes a shock-absorbing component buried in the foundation and connecting the pile foundation bearing platform and the base, the shock-absorbing component has a shock-absorbing seat, the lower end of the shock-absorbing seat is connected to the pile foundation bearing platform through a vertical damper, a shock-absorbing groove is arranged on the shock-absorbing seat, the shock-absorbing seat and the base are connected through a horizontal damper arranged horizontally in the shock-absorbing groove, the two ends of the horizontal damper are respectively hinged to the lower end of the base and the shock-absorbing seat, and the base is provided with the lower end of the column.

[0009] Furthermore, the prefabricated sheet has prestressed steel bars, the prestressed steel bars have steel bar joints exposed on the upper end surface of the prefabricated sheet, the lower end of the prestressed steel bars is connected to a sleeve buried in the prefabricated sheet, and a grouting channel and a grouting channel connected to the inner cavity of the sleeve are provided in the prefabricated sheet. In two adjacent cylinder layers, the exposed steel bar joints of the prefabricated sheets of the lower cylinder layer are inserted into the sleeve from the lower end of the prefabricated sheets of the upper cylinder layer, and grouting is performed through the grouting channel and the grouting outlet channel of the prefabricated sheets of the upper cylinder layer to realize the sleeve grouting connection of the prefabricated sheets of the two adjacent cylinder layers.

[0010] Furthermore, at least one outwardly protruding positioning ridge is provided on the outer surface of the protruding portion of the convex stop of the prefabricated sheet, and at least one positioning groove is provided on the inner surface of the side wall of the concave stop of the prefabricated sheet. When the convex and concave stop of two adjacent prefabricated sheets of the same tube layer are matched, the positioning ridge on the convex stop and the positioning groove on the concave stop cooperate with each other.

[0011] Furthermore, through holes for inserting locking bolts are provided on the protruding portion of the convex stop and the side wall of the concave stop of the prefabricated sheet.

[0012] Furthermore, a sealing gasket and / or a waterproof adhesive layer is provided on the mating surfaces of the concave and convex stoppers of two adjacent prefabricated sheets of the same cylindrical layer.

[0013] Furthermore, a metal mesh is embedded in the cement mortar.

[0014] The technical solution of the construction method of the prefabricated reinforced concrete silo provided by the present invention is: A construction method for a prefabricated reinforced concrete silo, comprising the following construction steps: S1. Excavate the foundation pit, drive piles in the foundation pit, and cast the pile foundation bearing platform on the foundation piles; S2. Install the shock-absorbing seat and vertical damper on the pile foundation bearing platform, install the horizontal damper in the shock-absorbing groove of the shock-absorbing seat, connect the base plate through the horizontal damper, support the formwork on the base plate and cast the base. S3, after the concrete solidifies, connect the column reinforcement cage with the steel bar joint reserved on the base, and then cast the column in formwork; S4. After all the columns are constructed, a steel cage is made at the top of the column and the base plate is cast. After the concrete solidifies, the base plate is constructed. Reserve positioning steel bars and steel bar joints when pouring the seat slab; S5. Construction of the lowest cylinder layer S51. Lay out the line on the base plate, lay out the outer circle of the bottom cylinder layer, then spread a layer of cement mortar in the area between the outer circle and the truncated cone, lay the metal mesh on the surface of the cement mortar, and then spread another layer of cement mortar on the metal mesh. S52, temporarily fixing a sealing gasket on a surface of a convex stopper or a surface of a concave stopper of the prefabricated sheet; S53, along the circumferential direction, multiple prefabricated sheets are installed on the cement mortar on the base plate, a positioning steel bar is inserted into the positioning through hole of each prefabricated sheet, and the steel bar joint on the base plate is inserted into the sleeve from the lower end of the prefabricated sheet, two adjacent prefabricated sheets are locked by locking bolts and a pressing plate, and the sealing gasket is pressed into the joint of the two adjacent prefabricated sheets. After the cement mortar solidifies, cement mortar is injected into the sleeve, and the construction of the bottom layer is completed; S6. Construction of the tube layer above the lowest tube layer S61, spreading a layer of cement mortar on the upper end surface of the prefabricated sheet of the lowest cylindrical layer, then laying a metal mesh on the surface of the cement mortar, and then spreading another layer of cement mortar on the metal mesh, S62, repeating steps S52 and S53 to complete the construction of the second tube layer; S63, repeating steps S61 and S62, constructing the cylinder layers in order from bottom to top, until the height of the silo reaches the designed height; S7. Silo roof structure Install the prefabricated silo roof structure on the top of the silo body; S8. Surface treatment of warehouse Apply cement mortar waterproof layer on the inner and outer surfaces of the warehouse, and after the cement mortar waterproof layer solidifies, carry out the exterior finishing construction; At this point, the construction of the prefabricated reinforced concrete silo is completed.

[0015] The beneficial effects of the present invention are: 1. A convex stopper and a concave stopper are respectively arranged on both sides of the prefabricated sheet of the present invention. Two adjacent prefabricated sheets of the same cylinder layer are matched through the concave and convex stopper 1 and are locked by a pressure plate and a locking bolt, and a sealing gasket is arranged on the matching surface of the concave and convex stopper. This structure can effectively improve the connection strength of the prefabricated sheets of the same cylinder layer, improve the waterproof sealing performance, and improve the stability of the silo structure.

[0016] 2. The two adjacent cylinder layers of the present invention are bonded and fixed by cement mortar, and a metal mesh is embedded in the cement mortar. The prestressed steel bars of the prefabricated sheets of the two adjacent cylinder layers are connected by sleeve grouting. The sleeve grouting connection of the prestressed steel bars of the prefabricated sheets connects the prefabricated sheets in the height direction of the entire silo into a whole. The cement mortar bonding between the cylinder layers can effectively improve the connection strength in the height direction of the silo and improve the structural stability of the silo.

[0017] 3. The columns of the support of the present invention are buried in the foundation, and a shock-absorbing assembly is arranged between the column and the pile foundation. The setting of the horizontal damper of the shock-absorbing assembly can improve the ability of the silo to resist lateral force, and the setting of the vertical damper can improve the ability of the silo to resist vertical force, thereby effectively improving the wind and earthquake resistance of the silo and improving the stability of the silo.

[0018] 4. The construction method of the present invention is simple and easy to operate, has low construction cost, low difficulty in quality control, good appearance, and can effectively improve the construction efficiency of the silo, shorten the construction period, and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the prefabricated sheet of the present invention in one direction; Figure 3 It is a schematic diagram of the three-dimensional structure of the prefabricated sheet of the present invention in another direction; Figure 4 This is a schematic diagram of the upper and lower connection structure of the prefabricated sheet of the present invention; Figure 5 It is a structural schematic diagram of the support of the present invention; Figure 6 It is a schematic diagram of the structure of the shock absorbing assembly of the present invention; Reference numerals: Support 1, seat plate 101, column 102, truncated table 103, positioning steel bar 104, base 105, warehouse body 2, prefabricated sheet 3, convex stop 301, concave stop 302, positioning through hole 303, prestressed steel bar 304, sleeve 305, grouting channel 306, grouting channel 307, positioning ridge 308, positioning groove 309, bolt hole 310, locking bolt 4, pressure plate 5, sealing gasket 6, pile foundation bearing platform 7, shock absorbing seat 8, vertical damper 9, horizontal damper 10, metal mesh 11, steel bar joint 12. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a prefabricated reinforced concrete silo, wherein: a support 1, a silo body 2 and a silo roof structure, the support 1 is a cast-in-place reinforced concrete support 1, the silo body 2 is fixedly arranged on the support 1, the top of the silo body 2 is fixedly arranged with a silo roof structure, the silo roof structure is a prefabricated silo roof structure, the support 1 has a seat plate 101 and a column 102 located at the lower end of the seat plate 101 for supporting the seat plate 101, the column 102 is buried in the foundation, and the lower end of the column 102 It is fixedly connected to the base 105, and a shock-absorbing assembly is arranged between the lower end of the base 105 and the pile foundation bearing platform 7 buried in the foundation. The shock-absorbing assembly has a shock-absorbing seat 8, and the lower end of the shock-absorbing seat 8 is connected to the pile foundation bearing platform 7 through a vertical damper 9. A shock-absorbing groove is arranged on the shock-absorbing seat 8. The shock-absorbing seat 8 is connected to the base 105 through a horizontal damper 10 horizontally arranged in the shock-absorbing groove, and both ends of the horizontal damper 10 are respectively hinged to the lower end of the base 105 and the shock-absorbing seat 8. The upper end of the column 102 is fixed to the seat plate 101. The middle part of the upper end of the seat plate 101 has an upwardly protruding truncated cone 103 and a plurality of positioning steel bars 104. The plurality of positioning steel bars 104 are evenly arranged along the circumference of the truncated cone 103. The lower end of the positioning steel bar 104 is buried in the seat plate 101. The upper end of the positioning steel bar 104 extends upward. The upper end of the seat plate 101 also has a steel bar joint 12 exposed upward. The exposed steel bar joint 12 is connected to the prefabricated sheet 3 of the lowest cylinder layer by sleeve grouting.

[0021] The silo body 2 is fixedly arranged on the seat plate 101 of the support 1. The silo body 2 has at least two layers of cylinder layers arranged in sequence up and down. The adjacent cylinder layers are bonded and fixed by cement mortar. The bottommost cylinder layer is bonded and fixed to the upper end surface of the seat plate 101 by cement mortar. The exposed steel bar joint 12 on the seat plate 101 is connected to the prefabricated sheet 3 of the bottommost cylinder layer by sleeve grouting. The topmost cylinder layer is bonded and fixed to the silo roof structure by cement mortar. A metal mesh 11 is embedded in the cement mortar.

[0022] The cylindrical layer has a plurality of arc-shaped reinforced concrete prefabricated pieces 3 connected in sequence along the circumferential direction, one side of the prefabricated piece 3 has a concave stop 302, and the other side of the prefabricated piece 3 has a convex stop 301. Two positioning convex ridges 308 protruding outward are arranged on the outer surface of the protruding part of the convex stop 301 of the prefabricated piece 3, and two positioning grooves 309 are arranged on the inner surface of the side wall of the concave stop 302 of the prefabricated piece 3. Bolt holes 310 for inserting locking bolts 4 are arranged on the protruding part of the convex stop 301 of the prefabricated piece 3 and the side wall of the concave stop 302. Two adjacent prefabricated pieces 3 are matched through the concave and convex stop and locked by the locking bolts 4 and the pressure plate 5. When two adjacent prefabricated pieces 3 are matched through the concave and convex stop, the positioning convex ridges 308 on the convex stop 301 and the positioning grooves 309 on the concave stop 302 cooperate with each other to realize the positioning of the two adjacent prefabricated pieces 3. A sealing gasket 6 is arranged on the mating surface of the concave and convex stoppers of two adjacent prefabricated sheets 3, and a positioning through hole 303 arranged along the height direction of the prefabricated sheet 3 is arranged in the middle part of the prefabricated sheet 3. The upper end of the support 1 has a plurality of positioning steel bars 104, and the positioning steel bars 104 cooperate with the positioning through holes 303 to realize the positioning of the prefabricated sheet 3.

[0023] The prefabricated sheet 3 has prestressed steel bars 304, and the prestressed steel bars 304 have steel bar joints 12 exposed on the upper end surface of the prefabricated sheet 3. The lower end of the prestressed steel bars 304 is connected to the sleeve 305 buried in the prefabricated sheet 3. The prefabricated sheet 3 is provided with a grouting channel 306 and a grouting channel 307 connected to the inner cavity of the sleeve 305. In two adjacent cylinder layers, the exposed steel bar joints 12 of the prefabricated sheet 3 of the lower cylinder layer are inserted into the sleeve 305 from the lower end of the prefabricated sheet 3 of the upper cylinder layer, and grouting is performed through the grouting channel 306 and the grouting channel 307 of the prefabricated sheet 3 of the upper cylinder layer, so as to realize the sleeve grouting connection of the prefabricated sheets 3 of the two adjacent cylinder layers.

[0024] A construction method for a prefabricated reinforced concrete silo, comprising the following construction steps: S1, excavation of foundation pit, piling in the foundation pit, and pouring of pile foundation bearing platform 7 on the foundation piles; S2, install the shock absorbing seat 8 and the vertical damper 9 on the pile foundation bearing platform 7, install the horizontal damper 10 in the shock absorbing groove of the shock absorbing seat 8, and connect the base plate through the horizontal damper 10, support the formwork on the base plate and cast the base 105, S3, after the concrete solidifies, the steel cage of the column 102 is connected to the steel bar joint 12 reserved on the base 105, and the column 102 is cast by formwork; S4: After all the columns 102 are constructed, a steel cage is made on the upper end of the columns 102 and the seat plate 101 is cast. After the concrete solidifies, the construction of the seat plate 101 is completed. When casting the seat plate 101, reserve the positioning steel bars 104 and the steel bar joints 12; S5. Construction of the lowest cylinder layer S51, laying out the outer circle of the bottom cylindrical layer on the seat plate 101, then spreading a layer of cement mortar in the area between the outer circle and the truncated cone 103, laying the metal mesh 11 on the surface of the cement mortar, and then spreading another layer of cement mortar on the metal mesh 11, S52, temporarily fixing the sealing gasket 6 on the surface of the convex stopper 301 or the surface of the concave stopper 302 of the prefabricated sheet 3; S53, along the circumferential direction, multiple prefabricated sheets 3 are installed on the cement mortar on the seat plate 101, a positioning steel bar 104 is inserted into the positioning through hole 303 of each prefabricated sheet 3, and the steel bar joint 12 on the seat plate 101 is inserted into the sleeve 305 from the lower end of the prefabricated sheet 3, two adjacent prefabricated sheets 3 are locked by the locking bolt 4 and the pressing plate 5, and the sealing gasket 6 is pressed in the joint of the two adjacent prefabricated sheets 3. After the cement mortar solidifies, the cement mortar is injected into the sleeve 305, and the construction of the bottom layer is completed; S6. Construction of the tube layer above the lowest tube layer S61, spreading a layer of cement mortar on the upper end surface of the prefabricated sheet 3 of the lowest cylindrical layer, then laying the metal mesh 11 on the surface of the cement mortar, and then spreading another layer of cement mortar on the metal mesh 11, S62, repeating steps S52 and S53 to complete the construction of the second tube layer; S63, repeating steps S61 and S62, constructing the cylindrical layers in order from bottom to top, until the height of the silo 2 reaches the designed height; S7. Silo roof structure Install the prefabricated silo roof structure on the top of the silo body 2; S8, Surface treatment of warehouse body 2 Apply a cement mortar waterproof layer on the inner and outer surfaces of the silo 2, and after the cement mortar waterproof layer solidifies, perform exterior finishing construction; At this point, the construction of the prefabricated reinforced concrete silo is completed.

[0025] It should be noted that the above embodiments are illustrative of the technical solution of the present invention rather than limiting. Equivalent substitutions made by ordinary technicians in the relevant technical field or other modifications made according to the prior art should be included in the scope of rights required by the present invention as long as they do not exceed the concept and scope of the technical solution of the present invention.

Claims

1. A prefabricated reinforced concrete silo, comprising: A support (1), a silo body (2) and a silo roof structure, wherein the support (1) is a cast-in-place reinforced concrete support (1), the silo body (2) is fixedly arranged on the support (1), the top of the silo body (2) is fixedly arranged with a silo roof structure, and the silo roof structure is a prefabricated silo roof structure, characterized in that: The silo body (2) comprises at least two layers of cylindrical layers arranged in an upper and lower order, the adjacent cylindrical layers are bonded and fixed by cement mortar, the bottom cylindrical layer is bonded and fixed to the upper end surface of the support (1) by cement mortar, and the top cylindrical layer is bonded and fixed to the silo roof structure by cement mortar. The cylindrical layer comprises a plurality of arc-shaped reinforced concrete prefabricated sheets (3) sequentially connected in the circumferential direction, one side of the prefabricated sheet (3) comprises a concave stopper (302) / convex stopper (301), and the other side of the prefabricated sheet (3) comprises a convex stopper (301) / concave stopper (302), two adjacent prefabricated sheets (3) are matched through the concave and convex stoppers and are locked through locking bolts (4) and a pressure plate (5), The middle of the prefabricated sheet (3) is provided with positioning through holes (303) arranged along the height direction of the prefabricated sheet (3), and the upper end of the support (1) is provided with a plurality of positioning steel bars (104), and the positioning steel bars (104) and the positioning through holes (303) cooperate with each other to realize the positioning of the prefabricated sheet (3).

2. The prefabricated reinforced concrete silo according to claim 1, characterized in that: The support (1) comprises a seat plate (101) and a column (102) located at the lower end of the seat plate (101) for supporting the seat plate (101); the column (102) is buried in the foundation, and the upper end of the column (102) is fixed to the seat plate (101). The middle portion of the upper end of the seat plate (101) has an upwardly protruding truncated cone (103) and a plurality of positioning steel bars (104). The plurality of positioning steel bars (104) are evenly arranged along the circumference of the truncated cone (103). The lower ends of the positioning steel bars (104) are buried in the seat plate (101), and the upper ends of the positioning steel bars (104) extend upward. The upper end of the seat plate (101) also has a steel bar joint (12) exposed upwards, and the exposed steel bar joint (12) is connected to the prefabricated sheet (3) of the bottommost cylinder layer by means of sleeve grouting.

3. The prefabricated reinforced concrete silo according to claim 2, characterized in that: The invention also comprises a shock absorbing component buried in the foundation and connecting the pile foundation bearing platform (7) and the base (105), wherein the shock absorbing component comprises a shock absorbing seat (8), the lower end of the shock absorbing seat (8) is connected to the pile foundation bearing platform (7) via a vertical damper (9), a shock absorbing groove is arranged on the shock absorbing seat (8), the shock absorbing seat (8) is connected to the base (105) via a horizontal damper (10) arranged horizontally in the shock absorbing groove, the two ends of the horizontal damper (10) are respectively hinged to the lower end of the base (105) and the shock absorbing seat (8), and the lower end of the column (102) is arranged on the base (105).

4. The prefabricated reinforced concrete silo according to claim 1, characterized in that: The prefabricated sheet (3) has a prestressed steel bar (304) therein, the prestressed steel bar (304) has a steel bar joint (12) exposed from the upper end surface of the prefabricated sheet (3), the lower end of the prestressed steel bar (304) is connected to a sleeve (305) buried in the prefabricated sheet (3), and a grouting channel (306) and a grouting channel (307) communicating with the inner cavity of the sleeve (305) are provided in the prefabricated sheet (3). In two adjacent cylinder layers, the exposed steel bar joints (12) of the prefabricated sheets (3) of the lower cylinder layer are inserted into the sleeve (305) from the lower end of the prefabricated sheets (3) of the upper cylinder layer, and grouting is performed through the grouting channel (306) and the grouting outlet channel (307) of the prefabricated sheets (3) of the upper cylinder layer, thereby achieving sleeve grouting connection of the prefabricated sheets (3) of the two adjacent cylinder layers.

5. The prefabricated reinforced concrete silo according to claim 1, characterized in that: At least one outwardly protruding positioning ridge (308) is provided on the outer surface of the protruding portion of the male stop (301) of the prefabricated sheet (3), and at least one positioning groove (309) is provided on the inner surface of the side wall of the female stop (302) of the prefabricated sheet (3). When the male and female stop of two adjacent prefabricated sheets (3) of the same cylindrical layer cooperate, the positioning ridge (308) on the male stop (301) and the positioning groove (309) on the female stop (302) cooperate with each other.

6. The prefabricated reinforced concrete silo according to claim 1, characterized in that: Bolt holes (310) for inserting locking bolts (4) are provided on the protruding portion of the convex stopper (301) and the side walls of the concave stopper (302) of the prefabricated sheet (3).

7. The prefabricated reinforced concrete silo according to claim 1, characterized in that: A sealing gasket (6) or / and a waterproof adhesive layer are provided on the mating surfaces of the concave and convex stoppers of two adjacent prefabricated sheets (3) of the same cylindrical layer.

8. The prefabricated reinforced concrete silo according to claim 1, characterized in that: A metal mesh (11) is embedded in the cement mortar.

9. The construction method of the prefabricated reinforced concrete silo according to any one of claims 1 to 8, characterized in that: The construction steps include: S1, excavating a foundation pit, driving piles in the foundation pit, and pouring a pile foundation bearing platform (7) on the foundation piles; S2, installing a shock-absorbing seat (8) and a vertical damper (9) on the pile foundation bearing platform (7), installing a horizontal damper (10) in the shock-absorbing groove of the shock-absorbing seat (8), and connecting the base plate through the horizontal damper (10), supporting the formwork on the base plate and casting the base (105), S3, after the concrete solidifies, the steel cage of the column (102) is connected to the steel bar joint (12) reserved on the base (105), and then the column (102) is cast by formwork; S4, after all the columns (102) are constructed, a steel cage is made on the upper end of the columns (102) and a base plate (101) is cast. After the concrete solidifies, the construction of the base plate (101) is completed. When pouring the seat plate (101), the positioning steel bars (104) and the steel bar joints (12) are reserved; S5. Construction of the lowest cylinder layer S51, laying out the outer circle of the bottom cylindrical layer on the base plate (101), then spreading a layer of cement mortar in the area between the outer circle and the truncated cone (103), laying the metal mesh (11) on the surface of the cement mortar, and then spreading another layer of cement mortar on the metal mesh (11), S52, temporarily fixing a sealing gasket (6) on the surface of the convex stopper (301) or the surface of the concave stopper (302) of the prefabricated sheet (3); S53, along the circumferential direction, multiple prefabricated sheets (3) are installed on the cement mortar on the base plate (101), a positioning steel bar (104) is inserted into the positioning through hole (303) of each prefabricated sheet (3), and the steel bar joint (12) on the base plate (101) is inserted into the sleeve (305) from the lower end of the prefabricated sheet (3), two adjacent prefabricated sheets (3) are locked by locking bolts (4) and a pressing plate (5), and the sealing gasket (6) is pressed into the joint between the two adjacent prefabricated sheets (3), and after the cement mortar solidifies, cement mortar is injected into the sleeve (305), thereby completing the construction of the bottom layer; S6. Construction of the tube layer above the lowest tube layer S61, spreading a layer of cement mortar on the upper end surface of the prefabricated sheet (3) of the bottommost cylindrical layer, then laying the metal mesh (11) on the surface of the cement mortar, and then spreading another layer of cement mortar on the metal mesh (11). S62, repeating steps S52 and S53 to complete the construction of the second cylinder layer; S63, repeating steps S61 and S62, constructing the cylindrical layers in order from bottom to top, until the height of the silo (2) reaches the designed height; S7. Silo roof structure Installing the prefabricated silo roof structure on the top of the silo body (2); S8. Surface treatment of the tank body (2) Apply a cement mortar waterproof layer on the inner and outer surfaces of the silo (2), and after the cement mortar waterproof layer solidifies, perform exterior finishing construction; The construction of the prefabricated reinforced concrete silo is now completed.

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