Fiber-compensating shrinkage concrete construction method

Abstract

The invention relates to the technical field of fiber shrinkage-compensating concrete, and discloses a fiber shrinkage-compensating concrete construction method which comprises the following construction steps: 1) preparing fiber shrinkage-compensating concrete and transporting the fiber shrinkage-compensating concrete to a construction site; (2) formworks are arranged on the construction site, and a steel bar frame is arranged in the enclosed cuboid-shaped pouring space; (3) the pouring space is divided into a plurality of layered spaces, and the fiber compensation shrinkage concrete is poured into the layered spaces in sequence from bottom to top till the layered spaces are filled with the fiber compensation shrinkage concrete; (4) the fiber compensation shrinkage concrete in the pouring space is initially set to form a longitudinal wall, and after the top face is plastered, pressed and leveled, the formwork is dismantled; (5) a top water spraying pipe is arranged on the top face, and a side water spraying pipe is arranged on the side face; a top water spraying pipe and a side water spraying pipe are used for spraying water for maintenance till the set time is reached; the whole construction process is more efficient and orderly through concrete preparation, transportation, pouring, surface treatment and maintenance.

Description

Technical Field

[0001] This invention patent relates to the technical field of fiber compensated shrinkage concrete, and more specifically, to a construction method for fiber compensated shrinkage concrete. Background Art

[0002] Fiber compensated shrinkage concrete is a high-performance concrete material that incorporates an expansive agent and fibers (such as polypropylene fibers) into ordinary concrete. It mainly compensates for the shrinkage of concrete through the expansive stress generated by the expansive agent, and at the same time utilizes the strengthening effect of the fibers to improve the crack resistance and toughness of the concrete.

[0003] The traditional construction process of fiber compensated shrinkage concrete is relatively complex. Usually, it is necessary to strictly control the slump, pouring speed, and curing conditions of the concrete. The construction process and material mix ratio rely more on engineering experience.

[0004] In the prior art, concrete pouring is usually completed in one go, which easily leads to uneven stratification and uneven fiber distribution, increasing the rework caused by uneven stratification and reducing the overall construction efficiency. After the concrete pouring is completed, surface treatment and formwork removal usually require additional time and labor, which not only reduces the overall construction efficiency but also easily causes concrete damage due to premature or late formwork removal;

[0005] In addition, concrete curing is mostly manual operation, and it is difficult to accurately control the curing time and frequency, resulting in uneven curing, and problems such as cracks and insufficient strength caused by insufficient curing will occur. Summary of the Invention

[0006] The purpose of this invention is to provide a construction method for fiber compensated shrinkage concrete, aiming to solve the problem of relatively low overall construction efficiency of fiber compensated shrinkage concrete in the prior art.

[0007] This invention is implemented as follows. The construction method for fiber compensated shrinkage concrete includes the following construction steps:

[0008] 1), Prepare fiber compensated shrinkage concrete, which contains fiber materials, and transport the fiber compensated shrinkage concrete to the construction site;

[0009] 2), The construction site is arranged with formwork, and the formwork encloses to form a cuboid-shaped pouring space. The formwork has two relatively arranged long side plates, and the long side plates extend along the length direction of the pouring space; a steel bar frame is provided in the pouring space, and both sides of the steel bar frame abut against the long side plates;

[0010] 3) Along the height direction of the pouring space, divide the pouring space into multiple hierarchical spaces, and arrange the multiple hierarchical spaces in sequence along the height direction of the pouring space; pour fiber compensated shrinkage concrete into the multiple hierarchical spaces in sequence from bottom to top until the pouring space is filled with fiber compensated shrinkage concrete;

[0011] 4) The fiber compensated shrinkage concrete in the pouring space initially sets to form a longitudinal wall. The longitudinal wall has a top surface arranged upward, and both sides of the longitudinal wall have side surfaces. After the top surface is troweled and leveled, remove the formwork;

[0012] 5) Arrange a top water spray pipe above the top surface, and arrange side water spray pipes outside the side surfaces; use the top water spray pipe to spray water for curing on the top surface, and use the side water spray pipes to spray water for curing on the side surfaces until the longitudinal wall is cured to the set time.

[0013] Further, in the construction step 1), the fiber material is polypropylene mesh fiber.

[0014] Further, in the construction step 1), the fiber compensated shrinkage concrete is formed by stirring and mixing crushed stone materials, sand materials, cement, fly ash, polypropylene mesh fiber, polycarboxylic acid retarder water reducer, and powdered expansive agent. The expansive agent contains calcium sulfoaluminate and calcium oxide.

[0015] Further, in the construction step 1), first pour the crushed stone materials and sand materials into the mixing drum and stir and mix them. During the process of stirring the aggregate, add polypropylene mesh fiber into the mixing drum. The crushed stone materials, sand materials, and polypropylene mesh fiber are stirred and mixed to form a preliminary mixture;

[0016] Add cement, fly ash, and expansive agent into the mixing drum. The cement, fly ash, expansive agent, and preliminary mixture are stirred and mixed to form a secondary mixture; add polycarboxylic acid retarder water reducer and water body into the mixing drum. The polycarboxylic acid retarder water reducer, water body, and secondary mixture are stirred and mixed to form fiber compensated shrinkage concrete.

[0017] Further, in the construction step 1), during the process of stirring and mixing the fiber compensated shrinkage concrete, spray water bodies in multiple directions into the interior of the fiber compensated shrinkage concrete.

[0018] Further, in the construction step 2), both sides of the steel bar frame respectively have side bar frames. The two side bar frames are arranged at intervals facing each other, forming an interval space. The side bar frames are abutted against the long side plates; multiple layers of steel bar meshes are arranged in the interval space, and the multiple layers of steel bar meshes are respectively connected to the two side bar frames as a whole.

[0019] Further, in the construction step 2), multiple layers of the steel bar meshes are arranged at intervals along the length direction of the pouring space, and along the height direction of the pouring space, the steel bar meshes are arranged in multiple sections bent from top to bottom; two bent reinforcing bars are provided between adjacent steel bar meshes, and two ends of each reinforcing bar are respectively butted against two steel bar meshes, and the two reinforcing bars are arranged opposite to each other up and down and are bent away from each other.

[0020] Further, in the construction step 3), during the process of pouring the fiber compensated shrinkage concrete in the hierarchical space, a vibrating rod is inserted into the fiber compensated shrinkage concrete at multiple positions in sequence to vibrate the fiber compensated shrinkage concrete at multiple positions;

[0021] A telescopic rod is inserted through the vibrating rod, an upper part of the telescopic rod is movably inserted into the vibrating rod, a lower part of the telescopic rod extends below the telescopic rod to form a telescopic section, and a plurality of elastically deformable elastic sheets are connected to a bottom of the telescopic section, and the plurality of elastic sheets are arranged at intervals around a circumference of the telescopic section;

[0022] During the process of inserting the vibrating rod into the fiber compensated shrinkage concrete for vibration, the telescopic section is synchronously inserted into the fiber compensated shrinkage concrete, and along with the synchronous vibration of the vibrating rod, the telescopic section synchronously moves up and down in a telescopic manner, and the plurality of elastic sheets are blocked by the fiber compensated shrinkage concrete and bend up and down deforming, so as to vibrate the fiber compensated shrinkage concrete in all directions.

[0023] Further, in the construction step 3), an elastic strip is connected between adjacent elastic sheets. When the telescopic section is inserted into the fiber compensated shrinkage concrete and moves up and down in a telescopic manner, the plurality of elastic sheets synchronously bend up and down deforming, and the elastic strip synchronously deforms in a telescopic manner to restrict the plurality of elastic sheets to bend in the same direction synchronously.

[0024] Further, in the construction step 5), a geotextile is arranged outside the side surface, the geotextile covers the entire side surface, and there is a closed covering interval between the geotextile and the side surface, and the side water spray pipe is arranged in the covering interval; the side water spray pipe has a plurality of side water spray nozzles facing the side surface, and the plurality of side water spray nozzles are arranged at intervals along the length direction of the side water spray pipe;

[0025] During the curing process of the longitudinal wall, the side water spray pipe sprays water towards the side surface through the plurality of side water spray nozzles, and water droplets are kept on an inner side wall of the geotextile until the longitudinal wall is cured to a set time.

[0026] Compared with the prior art, the fiber compensated shrinkage concrete construction method provided by the present invention has the following construction advantages:

[0027] 1), By dividing the pouring space into multiple hierarchical spaces and pouring fiber compensated shrinkage concrete sequentially from bottom to top, it can effectively avoid the problem of uneven stratification that may be caused by one-time pouring, ensure the uniform distribution of fibers in the concrete, thereby better exert the role of fiber compensated shrinkage, and improve the overall performance of the concrete;

[0028] 2), After the fiber compensated shrinkage concrete initially sets to form a longitudinal wall, the top surface is troweled and leveled, and then the formwork is removed. This not only ensures the flatness of the concrete surface, reduces subsequent finishing work, but also shortens the construction period and improves construction efficiency by reasonably arranging the construction steps;

[0029] 3), By arranging spray pipes on the top surface and side surfaces respectively to spray water on the concrete for comprehensive curing, it ensures uniform water supply during the curing process of the concrete, effectively improves the strength and durability of the concrete, reduces the generation of cracks, not only improves the curing efficiency, but also reduces quality problems caused by uneven curing. Description of the Drawings

[0030] Figure 1 is a schematic flow chart of the construction method of fiber compensated shrinkage concrete provided by the present invention;

[0031] Figure 2 is a schematic structural diagram of the formwork and the long side board provided by the present invention;

[0032] Figure 3 is a schematic structural diagram of multiple hierarchical spaces provided by the present invention;

[0033] Figure 4 is a schematic structural diagram of the steel bar frame provided by the present invention;

[0034] Figure 5 is a schematic structural diagram of the longitudinal wall provided by the present invention;

[0035] Figure 6 is a schematic structural diagram of the vibrating rod provided by the present invention;

[0036] In the figure: long side board 100, steel bar frame 101, pouring space 102, side steel bar frame 103, steel bar mesh 104, reinforcement bar 105, formwork 106, longitudinal wall 200, top surface 201, side surface 202, top spray pipe 203, side spray pipe 204, geotextile 205, covering interval 206, vibrating rod 300, telescopic rod 301, telescopic section 302, elastic sheet 303, elastic strip 304. Detailed Embodiments

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0039] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0040] Refer to Figures 1-6 as shown, which is a preferred embodiment provided by the present invention.

[0041] The construction method of fiber compensated shrinkage concrete includes the following construction steps:

[0042] 1), Prepare fiber compensated shrinkage concrete. The fiber compensated shrinkage concrete contains fiber materials, and transport the fiber compensated shrinkage concrete to the construction site;

[0043] 2), The construction site is provided with a formwork 106. The formwork 106 encloses a cuboid-shaped pouring space 102. The formwork 106 has two relatively arranged long side plates 100, and the long side plates 100 extend along the length direction of the pouring space 102; A steel bar frame 101 is provided in the pouring space 102, and both sides of the steel bar frame 101 abut against the long side plates 100;

[0044] 3), Along the height direction of the pouring space 102, divide the pouring space 102 into multiple hierarchical spaces, and the multiple hierarchical spaces are arranged in sequence along the height direction of the pouring space 102; Pour the fiber compensated shrinkage concrete into the multiple hierarchical spaces in sequence from bottom to top until the pouring space 102 is filled with the fiber compensated shrinkage concrete;

[0045] 4), The fiber compensated shrinkage concrete in the pouring space 102 initially sets to form a longitudinal wall. The longitudinal wall has a top surface 201 arranged upwards, and both sides of the longitudinal wall have side surfaces 202. After the top surface 201 is troweled and leveled, remove the formwork 106;

[0046] 5) Arrange a top water spray pipe 203 above the top surface 201, and arrange a side water spray pipe 204 outside the side surface 202; use the top water spray pipe 203 to spray water toward the top surface 201 for maintenance, and use the side water spray pipe 204 to spray water toward the side surface 202 for maintenance until the longitudinal wall is maintained for a set time.

[0047] The fiber-compensated shrinkage concrete construction method provided above has the following construction advantages:

[0048] 1) By dividing the pouring space 102 into multiple levels and pouring fiber-compensated shrinkage concrete sequentially from bottom to top, the problem of uneven stratification that may be caused by one-time pouring can be effectively avoided, ensuring the uniform distribution of fibers in the concrete, thereby better playing the role of fiber-compensated shrinkage and improving the overall performance of the concrete;

[0049] 2) After the fiber-compensated shrinkage concrete is initially set to form a longitudinal wall, the top surface 201 is smoothed and leveled, and then the formwork 106 is removed. This not only ensures the flatness of the concrete surface and reduces subsequent finishing work, but also shortens the construction period and improves construction efficiency by reasonably arranging construction steps;

[0050] 3) By arranging water spray pipes on the top surface 201 and the side surface 202 respectively, the concrete is fully sprayed with water for curing, ensuring that the concrete is evenly supplied with water during the curing process, effectively improving the strength and durability of the concrete, and reducing the occurrence of cracks. This not only improves the curing efficiency, but also reduces quality problems caused by uneven curing.

[0051] In this embodiment, in the construction step 1), the fiber material is polypropylene mesh fiber.

[0052] Polypropylene mesh fiber has the characteristics of high strength, high elastic modulus and good hydrophilicity, which can effectively prevent the occurrence of concrete shrinkage cracks and improve the mechanical properties and durability of concrete;

[0053] Coupled with its good dispersibility and toughness, it can form a three-dimensional network structure inside the concrete, effectively disperse stress and prevent the expansion of cracks, thereby significantly improving the concrete's crack resistance.

[0054] In this embodiment, in the construction step 1), the fiber-compensated shrinkage concrete is formed by mixing crushed stone, sand material, cement, fly ash, polypropylene mesh fiber, polycarboxylic acid retarder water-reducing agent and powdered expansion agent, and the expansion agent contains calcium sulfoaluminate and calcium oxide.

[0055] Through reasonable mix ratio and full use of the retarding effect of polycarboxylic acid retarder and water-reducing agent and the expansion performance of the expansive agent, the setting time of concrete can be effectively extended, while compensating for the shrinkage of concrete and reducing the occurrence of cracks.

[0056] In this embodiment, in construction step 1), first, the crushed stone material and the sand material are poured into the mixing drum for stirring and mixing. During the process of mixing the aggregates, polypropylene mesh fibers are added into the mixing drum. The crushed stone material, the sand material, and the polypropylene mesh fibers are stirred and mixed to form a primary mixture.

[0057] Cement, fly ash, and an expansion agent are added into the mixing drum. The cement, fly ash, expansion agent, and the primary mixture are stirred and mixed to form a secondary mixture. A polycarboxylate retarder and water are added into the mixing drum. The polycarboxylate retarder, water, and the secondary mixture are stirred and mixed to form fiber compensated shrinkage concrete.

[0058] By means of the step-by-step addition method, it can ensure that each component is fully mixed during the mixing process, avoiding uneven mixing caused by one-time addition. The synergistic effect of cement and fly ash can improve the compactness of the concrete, while the expansion agent can generate pre-compressive stress during the hardening process of the concrete to compensate for the shrinkage of the concrete, thereby further enhancing the crack resistance of the concrete.

[0059] In this embodiment, in construction step 1), during the mixing process of the fiber compensated shrinkage concrete, water is sprayed into the interior of the fiber compensated shrinkage concrete in multiple directions.

[0060] In this way, it can ensure that the concrete maintains an appropriate moisture content during the mixing process, improve the workability and fluidity of the concrete, reduce the segregation phenomenon, and thus improve the construction efficiency.

[0061] In this embodiment, in construction step 2), both sides of the steel bar frame 101 are respectively provided with side bar frames 103. The two side bar frames 103 are arranged at intervals facing each other, forming an interval space. The side bar frames 103 are abutted against the long side plate 100. Multiple layers of steel bar meshes 104 are arranged in the interval space, and the multiple layers of steel bar meshes 104 are respectively connected to the two side bar frames 103 as a whole.

[0062] Through the abutment of the side bar frames 103 against the long side plate 100, the stability of the steel bar frame 101 is ensured. The setting of the multiple layers of steel bar meshes 104 can enhance the crack resistance of the concrete and can reduce the cracks caused by unreasonable steel bar arrangement, thereby improving the durability and reliability of the concrete structure.

[0063] In this embodiment, in construction step 2), the multiple layers of steel bar meshes 104 are arranged at intervals along the length direction of the pouring space 102, and along the height direction of the pouring space 102, the steel bar meshes 104 are arranged in multiple sections and bent from top to bottom. Two bent reinforcing bars 105 are arranged between adjacent steel bar meshes 104. The two ends of the reinforcing bars 105 are respectively butted against the two steel bar meshes 104. The two reinforcing bars 105 are arranged opposite to each other up and down and are bent away from each other.

[0064] The spaced arrangement of the multi-layer steel bar mesh 104 can effectively disperse the stress inside the concrete and reduce the generation of cracks. At the same time, the bent reinforcing bars 105 can further enhance the crack resistance of the steel bar mesh 104. Especially in the height direction, they can effectively resist the shrinkage stress of the concrete. This not only improves the strength and durability of the concrete but also reduces the construction quality problems caused by unreasonable steel bar arrangement.

[0065] In this embodiment, in construction step 3), during the process of pouring the fiber compensated shrinkage concrete in the hierarchical space, the vibrating rod 300 is sequentially inserted into the fiber compensated shrinkage concrete at multiple positions to vibrate the fiber compensated shrinkage concrete at multiple positions.

[0066] A telescopic rod 301 is inserted into the vibrating rod 300. The upper part of the telescopic rod 301 is movably inserted into the vibrating rod 300, and the lower part of the telescopic rod 301 extends below the telescopic rod 301 to form a telescopic section 302. A plurality of elastically deformable elastic sheets 303 are connected to the bottom of the telescopic section 302, and the plurality of elastic sheets 303 are arranged at intervals along the circumference of the telescopic section 302.

[0067] During the process of inserting the vibrating rod 300 into the fiber compensated shrinkage concrete for vibration, the telescopic section 302 is synchronously inserted into the fiber compensated shrinkage concrete, and along with the synchronous vibration of the vibrating rod 300, the telescopic section 302 synchronously moves up and down telescopically. The plurality of elastic sheets 303 are blocked by the fiber compensated shrinkage concrete and bend up and down deforming to vibrate the fiber compensated shrinkage concrete in all directions.

[0068] By arranging the telescopic section 302 and the elastic sheets 303 in the vibrating rod 300, not only is the compactness inside the concrete ensured, the generation of air bubbles and cavities is reduced, but also the problem of uneven concrete strength caused by insufficient vibration can be effectively avoided. At the same time, the method of vibrating at multiple positions can significantly improve the construction efficiency, reduce the vibration time, and reduce the construction quality problems caused by insufficient vibration, thus solving the problem of relatively low overall construction efficiency of the fiber compensated shrinkage concrete.

[0069] In this embodiment, in construction step 3), an elastic strip 304 is connected between adjacent elastic sheets 303. When the telescopic section 302 is inserted into the fiber compensated shrinkage concrete and moves up and down telescopically, the plurality of elastic sheets 303 synchronously bend up and down deforming, and the elastic strip 304 synchronously deforms telescopically to restrain the plurality of elastic sheets 303 to bend in the same direction synchronously.

[0070] By utilizing the fact that during the up and down telescopic movement of the telescopic section 302, the elastic strip 304 can restrain the elastic sheets 303 to bend in the same direction synchronously, ensuring that the vibration effect of the vibrating rod 300 is consistent at different positions. This can effectively improve the uniformity of the concrete and reduce the problem of local strength deficiency caused by uneven vibration, thereby further improving the construction quality.

[0071] In this embodiment, in construction step 5), a geotextile 205 is arranged outside the side surface 202. The geotextile 205 covers the entire side surface 202, and there is a closed covering interval 206 between the geotextile 205 and the side surface 202. The side water spray pipe 204 is placed in the covering interval 206. The side water spray pipe 204 has a plurality of side water spray nozzles facing the side surface 202, and the plurality of side water spray nozzles are arranged at intervals along the length direction of the side water spray pipe 204.

[0072] During the curing process of the longitudinal wall, the side water spray pipe 204 sprays water towards the side surface 202 through the plurality of side water spray nozzles, and keeps water droplets on the inner side wall of the geotextile 205 until the longitudinal wall is cured to the set time.

[0073] By arranging the geotextile 205 outside the side surface 202 and setting the side water spray pipe 204, uniform wetting of the concrete side can be achieved, enabling the geotextile 205 to retain moisture, reducing the rapid evaporation of water, ensuring that the concrete remains in a wet state during the curing process, and effectively reducing problems such as cracks and insufficient strength caused by insufficient curing, thereby improving the durability and overall performance of the concrete.

[0074] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fiber-compensated shrinkage concrete construction method, characterized in that: The construction steps include: 1) preparing fiber-compensated shrinkage concrete, wherein the fiber-compensated shrinkage concrete contains fiber material, and transporting the fiber-compensated shrinkage concrete to a construction site; 2) A template is arranged at the construction site, and the template encloses a rectangular casting space. The template has two long side plates arranged opposite to each other, and the long side plates are arranged along the length direction of the casting space; a steel bar frame is arranged in the casting space, and the two sides of the steel bar frame abut against the long side plates; 3) along the height direction of the casting space, the casting space is divided into a plurality of hierarchical spaces, and the plurality of hierarchical spaces are arranged in sequence along the height direction of the casting space; fiber-compensating shrinkage concrete is cast in the plurality of hierarchical spaces in sequence from bottom to top until the casting space is filled with fiber-compensating shrinkage concrete; 4) The fiber-compensated shrinkage concrete in the casting space is initially set to form a longitudinal wall, wherein the longitudinal wall has a top surface arranged upward, and both sides of the longitudinal wall have side surfaces. After the top surface is smoothed and leveled, the formwork is removed; 5) Arrange a top water spray pipe above the top surface, and arrange a side water spray pipe outside the side surface; use the top water spray pipe to spray water towards the top surface for maintenance, and use the side water spray pipe to spray water towards the side surface for maintenance until the longitudinal wall is maintained for a set time.

2. The fiber-compensated shrinkage concrete construction method according to claim 1, characterized in that: In the construction step 1), the fiber material is polypropylene mesh fiber.

3. The fiber-compensated shrinkage concrete construction method according to claim 1, characterized in that: In the construction step 1), the fiber-compensated shrinkage concrete is formed by mixing crushed stone, sand material, cement, fly ash, polypropylene mesh fiber, polycarboxylic acid slow-setting water-reducing agent and powdered expansion agent, and the expansion agent contains calcium sulfoaluminate and calcium oxide.

4. The fiber-compensated shrinkage concrete construction method according to any one of claims 1 to 3, characterized in that: In the construction step 1), crushed stone and sand material are first poured into a mixing drum and stirred and mixed. During the mixing of the aggregate, polypropylene mesh fibers are added into the mixing drum. The crushed stone, sand material and polypropylene mesh fibers are stirred and mixed to form a primary mixture. Cement, fly ash and expansion agent are added into the mixing drum, and the cement, fly ash, expansion agent and primary mixture are stirred and mixed to form secondary mixture; polycarboxylic acid retarding water-reducing agent and water are added into the mixing drum, and the polycarboxylic acid retarding water-reducing agent, water and secondary mixture are stirred and mixed to form fiber-compensated shrinkage concrete.

5. The fiber-compensated shrinkage concrete construction method according to claim 4, characterized in that: In the construction step 1), during the mixing process of the fiber-compensated shrinkage concrete, water is sprayed in multiple directions into the interior of the fiber-compensated shrinkage concrete.

6. The fiber-compensated shrinkage concrete construction method according to any one of claims 1 to 3, characterized in that: In the construction step 2), the two sides of the steel bar frame are respectively provided with side reinforcement frames, and the two side reinforcement frames are arranged opposite to each other and spaced apart to form a spacing space, and the side reinforcement frames are abutted against the long side plates; multiple layers of steel mesh are arranged in the spacing space, and the multiple layers of steel mesh are respectively connected to the two side reinforcement frames as a whole.

7. The fiber-compensated shrinkage concrete construction method according to claim 6, characterized in that: In the construction step 2), the multiple layers of the steel meshes are arranged at intervals along the length direction of the casting space, and along the height direction of the casting space, the steel meshes are arranged in multiple curved sections from top to bottom; two curved reinforcing ribs are provided between adjacent steel meshes, and the two ends of the reinforcing ribs are respectively connected to the two steel meshes, and the two reinforcing ribs are arranged opposite to each other up and down, and are bent away from each other.

8. The fiber-compensated shrinkage concrete construction method according to any one of claims 1 to 3, characterized in that: In the construction step 3), during the pouring of the fiber-compensating shrinkage concrete in the layered space, a vibrating rod is inserted into the fiber-compensating shrinkage concrete at multiple positions in sequence to vibrate the fiber-compensating shrinkage concrete at multiple positions; A telescopic rod is inserted into the vibrating rod, the upper part of the telescopic rod is movably inserted into the vibrating rod, and the lower part of the telescopic rod extends to the bottom of the telescopic rod to form a telescopic section, and a plurality of elastic sheets that are elastically deformed up and down are connected to the bottom of the telescopic section, and the plurality of elastic sheets are arranged around the circumference of the telescopic section at intervals; The vibrating rod is inserted during the vibration process of the fiber-compensating shrinkage concrete, and the telescopic section is synchronously inserted into the fiber-compensating shrinkage concrete. As the vibrating rod is synchronously vibrated, the telescopic section synchronously moves up and down, and the plurality of elastic sheets are blocked by the fiber-compensating shrinkage concrete and bend and deform up and down, so that the fiber-compensating shrinkage concrete can be vibrated in all directions.

9. The fiber-compensated shrinkage concrete construction method according to claim 8, characterized in that: In the construction step 3), elastic strips are connected between adjacent elastic sheets. When the telescopic section is inserted into the fiber-compensated shrinkage concrete and telescopes up and down, the multiple elastic sheets are synchronously bent and deformed up and down, and the elastic strips are synchronously telescoped and deformed, thereby restraining the multiple elastic sheets from bending and deforming synchronously in the same direction.

10. The fiber-compensated shrinkage concrete construction method according to any one of claims 1 to 3, characterized in that: In the construction step 5), a geotextile is arranged on the outer side of the side surface, the geotextile covers the entire side surface, and a closed covering interval is formed between the geotextile and the side surface, and the side water spray pipe is placed in the covering interval; the side water spray pipe has a plurality of side water spray ports facing the side surface, and the plurality of side water spray ports are arranged at intervals along the length direction of the side water spray pipe; During the curing process of the longitudinal wall, the side water spray pipe sprays water toward the side surface through a plurality of side water spray ports, and keeps water droplets on the inner wall of the geotextile until the longitudinal wall is cured to a set time.

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