CN114482552A - Concrete surface wear-resistant layer construction method for solid material storage and conveying structure - Google Patents
Concrete surface wear-resistant layer construction method for solid material storage and conveying structure Download PDFInfo
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- CN114482552A CN114482552A CN202210146779.2A CN202210146779A CN114482552A CN 114482552 A CN114482552 A CN 114482552A CN 202210146779 A CN202210146779 A CN 202210146779A CN 114482552 A CN114482552 A CN 114482552A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
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Abstract
The invention relates to the technical field of concrete construction, in particular to a construction method of a concrete surface wear-resistant layer of a solid material storage and conveying structure, and aims at concrete structures with additional wear-resistant requirements such as silo conveying pipelines and the like. The wear-resistant layer pieces are prefabricated, the wear-resistant layer pieces are installed in sections and are fixedly supported in a structure before pouring, and then concrete is poured, so that the concrete structure body and the wear-resistant layer are formed at one time. By using the scheme, the main body structure and the functional structure can form a stable and reliable matching body, namely, a gap between the wear-resistant layer and the base concrete is avoided, and potential quality hazards are avoided; and the two processes of concrete pouring and wearing layer laying are integrated together, so that the construction efficiency is improved. Meanwhile, the idea of one-step forming is beneficial to the wear-resistant laying layer and the concrete to mutually borrow the physical characteristics of the other side, has better impact resistance and undercut resistance under the same wear-resistant material consumption, and can effectively avoid the accident potential that the wear-resistant layer falls off in a large area and enters a production system.
Description
Technical Field
The invention relates to the technical field of concrete construction, in particular to a construction method of a concrete surface wear-resistant layer of a solid material storage and conveying structure.
Background
Aiming at the structures such as silos, material chutes, material feeding temporary storage pits and the like in industrial buildings, in order to protect surface concrete and enable the surface concrete to better resist material impact and abrasion, in recent design, designers consider that a layer of wear-resistant steel plate is additionally arranged on the inner surface of the concrete so as to prolong the service life of the structure. The conventional design methods include:
1. the heavy rails are distributed in the storage pits and welded on the inner wall of the tunnel, so that the impact of the materials unloaded by the truck is buffered, and the concrete structure below the truck is protected.
According to the scheme, the welding area between the track and the embedded part is small, the welding performance of the track is poor, and the track is often separated from the embedded part of the pithead. Not only can the concrete surface not be effectively protected, but also the fallen heavy rail can fall into downstream equipment such as a crusher and the like, so that the equipment is damaged.
2. And covering the whole of the blanking pithead or the chute. The process requirement is realized by utilizing the abrasion resistance of the abrasion-resistant steel plate. The initial construction idea of the scheme is to reserve strip-shaped embedded parts on the surface of concrete before pouring, and weld wear-resistant steel plates between the strip-shaped embedded parts after pouring the concrete.
The scheme has the conditions that the flatness of the joint surface is poor, the shape of the pouring end surface of the wood mold is completely uncontrollable, and the flat belt is completely buried in concrete and is not beneficial to welding the wear-resisting plate.
The concrete surface wear-resistant design is technically characterized in that the rigidity and the surface hardness of steel are used for resisting the surface hardness of materials, and impact load caused by high-throwing motion of the previous level (during feeding) is dispersed. The wear-resistant characteristic is overcome by using a special steel plate (NM type) steel plate, and a good wear-resistant effect is achieved. However, the impact resistance is overcome by using the thickness of the steel plate, and the load is dispersed to the concrete base structure by the structure formed by welding the steel plates through the embedded parts, namely, the conduction nodes. Such treatment is the core of thinking of the 2 nd wear-resistant construction method.
However, the 2 nd wear-resistant construction method, i.e. the construction method of embedding the flat belt and welding the wear-resistant steel plate thereon, has some disadvantages in construction, and causes a series of technical and quality hidden troubles due to the disadvantages.
First, due to the characteristics of concrete construction, the embedded flat belts and the concrete forming surface cannot be as flat as the steel plate surface. The wear resistant steel plates will inevitably have voids between the concrete substrates. These voids will gradually release to the deformation of the steel plate after the steel plate is impacted. The stresses caused by these deformations are released at the weld seams between the steel plate and between the steel plate and the insert. Causing the steel sheet to crack along the weld. And after cracking, the cavity of the steel plate can be filled with materials immediately. The material entering the gap conducts the pressure of the material, and further peels off the wear-resistant steel plate to form vicious circle, so that the surface of the steel plate is warped outwards, and the steel plate tends to deform more and deform more easily under the impact of the next round of material.
Secondly, the inserts are typically arranged to control the spacing to 800mm or less, as sufficient contact points or surfaces are required to transfer the impact load from the wear resistant steel shell to the concrete substrate. Thus, for the wear-resistant steel plate, the whole wear-resistant steel plate needs to be cut from the factory size to the construction size and then welded back to the structural shape required by the process. The method of sticking the fish scales causes a large amount of repeated cutting and welding work, so that the construction time is multiplied. Meanwhile, the welding heat-sensitive areas are distributed in the tunnel in a criss-cross mode, and cracking and falling are more easily caused.
It can be known that the existing construction process still has a great improvement space, and the construction process needs to be optimized and improved, so a more reasonable technical scheme should be provided, and the technical problems existing in the prior art are solved.
Disclosure of Invention
In order to solve the defects of the prior art mentioned in the content, the invention provides a construction method of a concrete surface wear-resistant layer of a solid material storage and conveying structure, which realizes the attachment of the surface of a steel shell and the surface of concrete, gives full play to the wear resistance of a steel plate, and simultaneously reasonably enhances the impact resistance of the whole steel plate shell by means of the strong pressure resistance of the concrete.
In order to achieve the purpose, the invention specifically adopts the technical scheme that:
a construction method of a concrete surface wear-resistant layer of a solid material storage and conveying structure is characterized in that a prefabricated member is arranged before concrete structure for solid material storage and conveying is poured, and the prefabricated member covers the solid material storage and conveying surface of the concrete structure to be poured, and the construction method comprises the following steps:
constructing a pouring steel bar structure, and manufacturing a prefabricated part according to the pouring steel bar structure, wherein a plurality of reserved openings are reserved in the prefabricated part, and the reserved openings are arranged on the material receiving surface layer by layer from low to high;
arranging the prefabricated part on a pouring steel bar structure and connecting and fixing the prefabricated part to enable the prefabricated part to be used as a material receiving surface of a material receiving concrete pouring structure;
arranging an anchoring part on the prefabricated part, wherein the length of the anchoring part is equal to the thickness of the poured concrete, the front end of the anchoring part is in contact with the prefabricated part and is welded and fixed, and the rear end of the anchoring part penetrates through the poured steel bar structure;
arranging a bottom template for pouring a steel bar structure, wherein the bottom template is tightly contacted and propped against the fixed end of the anchoring piece; pouring concrete from the lowest reserved opening, stopping pouring when the distance between the height of the poured concrete and the reserved opening reaches a preset value, sealing the reserved opening, and replacing the reserved opening with a higher reserved opening to continue pouring until all the reserved openings are completely sealed;
and after the pouring is finished, removing the bottom die after the concrete reaches the solidification time.
According to the construction method of the wear-resistant layer, after the steel bar structure is poured, the prefabricated part is arranged at the set position, the structural stability of the prefabricated part is kept, meanwhile, the distance between the prefabricated part and the poured steel bar structure is kept, and the thickness of finally poured concrete is ensured to be uniform and reach the standard; after the final pouring is finished, the prefabricated member and the bottom template are filled with concrete completely to form a concrete structure, the prefabricated member becomes a wear-resistant layer on the surface of the concrete, and the wear-resistant layer obtained by the construction has good integrity, can bear better impact and friction, and can keep better wear resistance after being used for a long time.
Further, in the present invention, the prefabricated member can be prepared according to actual requirements, the structural form is not limited uniquely, for example, in some solid material storage and conveying structures with small size, the prefabricated member can be directly prepared and installed as a whole, but in some receiving structures with larger size, the whole rigidity and strength of the prefabricated member need to be considered, so that the prefabricated member needs to be disassembled and assembled, and the following feasible options are optimized and taken out: the prefabricated member include a plurality of concatenation portion, concatenation portion from down up splices in proper order in order to form the prefabricated member wholly. When the scheme is adopted, the number of the splicing parts is not limited uniquely, when the overall size of the prefabricated part is larger, the weight of the prefabricated part is larger, the required strength and rigidity are also larger, and the prefabricated part can be considered to be split into a plurality of parts so as to meet the strength and rigidity requirements after final splicing.
Further, when the prefabricated member is constructed by splicing a plurality of components, a more secure installation method should be adopted during installation, and in particular, a feasible option is given here: when the prefabricated member is installed, the splicing part at the lowest layer is installed at first, the splicing part and the poured steel bar structure are aligned and leveled, and the splicing part at the upper layer is installed layer by layer.
Furthermore, the prefabricated member is made of steel and used as a steel plate part to cover the whole concrete structure, before concrete is poured, the weight of the prefabricated member is borne by the scaffold and the pouring steel bar structure, if the weight of the prefabricated member is large, the deformation of the scaffold and the pouring steel bar structure is easy to occur, and the final forming quality of the concrete is greatly reduced, for example, the surface degree cannot meet the requirement, the thickness of the concrete cannot meet the standard, and the like; to avoid this, the present invention makes optimization and improvement and provides one possible choice as follows: before being connected to the prefab and pouring steel bar structure, set up the support piece that is used for supporting the prefab, support piece contacts with the prefab through a plurality of supporting part, and support piece is from up supporting the prefab down. When the scheme is adopted, the supporting piece is generally arranged in a projection range below the prefabricated piece, and the weight of the supporting piece is borne in a vertical supporting mode.
Further, in the present invention, in order to improve the reliability of the support member to the preform, it is optimized here: the number of the supporting pieces is at least two, and the supporting pieces adopt a door-shaped support structure. Other support structures than a portal frame structure may be used, such as a tripod structure directly provided as a support.
Further, in the present invention, the structure of the anchor is not limited only, and may be configured in various forms, and optimization and selection are made herein and one of the possible options is: the anchoring part comprises anchoring steel bars which are uniformly distributed on the outer side surface of the prefabricated part at intervals.
Further, in order to improve prefab overall structure's stability, avoid before concreting or before the concrete setting prefab takes place the deformation, set up extra support in order assisting the setting to the prefab, optimize here and set up and mention one of them feasible selection: still including setting up secondary bearing structure, secondary bearing structure is located the prefab and connects the one side of material, and the secondary supports the contact and supports the surface that tight prefab connects material one side, and the contact point of secondary support and prefab evenly sets up at interval on the same level of prefab inboard surface. When adopting such scheme, secondary bearing structure provides even tight tension of supporting to the inboard surface of prefab, avoids the prefab to take place displacement deformation under the extrusion force of concrete.
Still further, the secondary support structure is optimized and one of the following possible options is presented: the secondary supporting structure comprises a plurality of supporting rods which are radially arranged, and the outer end of each supporting rod is in contact with and tightly abutted against the inner side surface of the prefabricated member.
Further, in order to ensure the quality of concrete placement, optimization is performed and one possible choice is shown as follows: and in the concrete pouring process, vibrating the concrete through the reserved opening. When the scheme is adopted, different reserved openings can be selected for vibrating and pouring, and flexible selection can be performed according to the actual pouring condition.
Still further, in order to continuously and efficiently perform the pouring, vibrating and sealing of the reserved openings, the number and positions of the reserved openings need to be reasonably configured, and the following feasible options are optimized and proposed here: the reserved openings are arranged on the prefabricated member in rows and columns, and the distance between every two adjacent reserved openings is 2.7-3.3 m. When adopting such scheme, can realize concrete placement, the solidification of vibrating and reserve mouthful welding confined cooperation smoothly, similar whole work impels efficiently.
Still further, when setting up the reservation mouth, cut partial plate from the prefab in order to form the reservation mouth, the plate that cuts is connected to the reservation mouth again as the apron that seals the reservation mouth after pouring and vibrating and accomplish and seal.
Compared with the prior art, the invention has the beneficial effects that:
according to the scheme, the wear-resistant layer is preset as a prefabricated part, a stable and reliable matched structure is formed with the poured steel bar structure, and the wear-resistant layer is prevented from being independently arranged in secondary construction through one-step forming of subsequent pouring; not only improved the efficiency of construction, shortened construction cycle, still reached the complete laminating state of wearing layer and concrete silo wall, improved the quality of construction, the impact force of bearing the material that can be better, the effectual quality hidden danger of avoiding the steel sheet to receive impact deformation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a process diagram of a wear-resistant layer construction method.
Fig. 2 is a schematic structural view of the embodiment in which the wear-resistant layer is provided.
Fig. 3 is a schematic top view of an embodiment of a secondary support structure.
In the above drawings, the meaning of each symbol is: 1. a prefabricated member; 2. a support member; 3. a bottom template; 4. pouring a steel bar structure; 5. an anchoring member; 6. reserving a port; 7. and (5) a secondary support structure.
Detailed Description
The invention is further explained below with reference to the drawings and the specific embodiments.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
Examples
To carry out concrete surface wearing layer construction among the prior art and have the condition that the reliability is low, the construction precision is not up to standard reduction overall efficiency, the problem that exists in order to solve prior art is optimized to this embodiment.
Specifically, as shown in fig. 1, fig. 2 and fig. 3, the embodiment discloses a construction method of a wear-resistant layer on a concrete surface of a solid material storage and conveying structure, wherein a prefabricated member 1 is arranged before a concrete structure for receiving materials is poured, and the prefabricated member 1 covers a receiving surface of the concrete structure to be poured, and the construction method comprises the following steps:
s1, constructing a pouring steel bar structure 4, manufacturing a prefabricated part 1 according to the pouring steel bar structure 4, reserving a plurality of reserved openings 6 on the prefabricated part 1, and arranging the reserved openings 6 on the material receiving surface layer by layer from low to high;
s2, arranging the prefabricated part 1 on the pouring steel bar structure 4, and connecting and fixing the prefabricated part 1 to enable the prefabricated part 1 to serve as a material receiving surface of a material receiving concrete pouring structure;
s3, arranging an anchoring piece 5 on the prefabricated piece 1, wherein the length of the anchoring piece 5 is equal to the thickness of the poured concrete, the front end of the anchoring piece 5 is in contact with the prefabricated piece 1 and is welded and fixed, and the rear end of the anchoring piece 5 penetrates through a poured steel bar structure 4;
s4, arranging a bottom template 3 for pouring the steel bar structure 4, wherein the bottom template 3 is tightly contacted with the fixed end of the anchoring piece 5; pouring concrete from the lowest reserved opening 6, stopping pouring when the distance between the height of the poured concrete and the reserved opening 6 reaches a preset value, sealing the reserved opening 6, and replacing the reserved opening 6 with a higher position to continue pouring until all the reserved openings 6 are completely sealed;
and S5, after the pouring is finished, removing the bottom die after the concrete reaches the setting time.
According to the construction method of the wear-resistant layer, after the steel bar structure 4 is poured, the prefabricated part 1 is arranged at the set position, the structural stability of the prefabricated part 1 is kept, meanwhile, the distance between the prefabricated part 1 and the poured steel bar structure 4 is kept, and the thickness of finally poured concrete is guaranteed to be uniform and reach the standard; after the final pouring is finished, the prefabricated member 1 and the bottom template 3 are filled with concrete completely to form a concrete structure, the prefabricated member 1 becomes a wear-resistant layer on the surface of the concrete, the wear-resistant layer obtained by the construction is good in integrity, can bear better impact and friction, and can keep better wear resistance after being used for a long time.
Preferably, in the present embodiment, the preform 1 has a conical hopper structure; in other embodiments, for example when the surface of the concrete structure is a chute structure, the prefabricated member 1 can be provided as a square trough-shaped member.
In this embodiment, the prefabricated member 1 can be prepared according to actual requirements, the structural form is not limited, for example, in some solid material storage and transportation structures with small size, the prefabricated member 1 can be directly prepared and installed as a whole, but in some solid material storage and transportation structures with large size, the whole rigidity and strength of the prefabricated member 1 need to be considered, so that the prefabricated member needs to be disassembled and assembled, and the following feasible options are optimized and adopted: the prefabricated member 1 comprises a plurality of splicing parts, and the splicing parts are sequentially spliced from bottom to top to form the whole prefabricated member 1. When such a scheme is adopted, the number of the splicing parts is not limited uniquely, and when the overall size of the prefabricated member 1 is larger, the weight of the prefabricated member is larger, the required strength and rigidity are also larger, and the prefabricated member can be considered to be split into a plurality of parts so as to meet the strength and rigidity requirements after final splicing.
When the preform 1 is constructed as a plurality of components to be joined, a more secure installation should be used during installation, in particular, a possible option here: when the prefabricated part 1 is installed, the splicing part at the lowest layer is installed firstly, the splicing part and the pouring steel bar structure 4 are aligned and leveled, and the splicing part at the upper layer is installed layer by layer.
Preferably, the preform 1 is welded or fixed by other means after it has been set in the desired position during the installation.
The prefabricated part 1 is made of steel and used as a steel plate part to cover the whole concrete structure, before concrete is poured, the weight of the prefabricated part 1 is borne by a scaffold and a pouring steel bar structure 4, if the weight of the prefabricated part 1 is large, the deformation of the scaffold and the pouring steel bar structure 4 is easy to occur, and the final forming quality of the concrete is greatly reduced, for example, the surface degree cannot meet the requirement, the thickness of the concrete cannot meet the standard, and the like; to avoid this, the present embodiment is optimized and modified and adopts one of the following possible options: before being connected prefab 1 to pouring steel bar structure 4, set up support piece 2 that is used for supporting prefab 1, support piece 2 contacts with prefab 1 through a plurality of supporting part, and support piece 2 supports prefab 1 from up down. With this solution, the support 2 is generally arranged in the projection below the preform 1, bearing the weight of the support 2 in the form of a vertical support.
In the present embodiment, in order to improve the reliability of the support 2 for the preform 1, it is optimized here: the number of the supporting pieces 2 is at least two, and the supporting pieces 2 adopt a door-shaped support structure. Other support structures than a portal frame structure may be used, such as a tripod structure directly provided as a support.
Preferably, in the present embodiment, the supporting members 2 are made of H-shaped steel material and are circumferentially and uniformly spaced below the preform 1.
In the present embodiment, the structure of the anchor 5 is not limited only, and can be configured in various forms, where an optimal choice is made and one of the possible choices is adopted: the anchoring part 5 comprises anchoring steel bars which are uniformly distributed on the outer side surface of the prefabricated part 1 at intervals.
Preferably, when setting up the anchor reinforcing bar, in order to avoid anchor reinforcing bar's the tight power of support to make the surface of prefab 1 take place to warp, can set up the cushion at the tip of anchor reinforcing bar, the area of contact of cushion and prefab 1 is bigger for anchor reinforcing bar to the pressure of reducible prefab 1 surface department has reduced the condition that prefab 1 takes place to warp.
In order to improve the stability of the whole structure of the prefabricated member 1 and avoid the deformation of the prefabricated member 1 before the concrete is poured or before the concrete is shaped, the prefabricated member 1 is provided with additional support to assist in shaping, and the optimal setting is carried out and one of the feasible options is adopted: still including setting up secondary bearing structure 7, secondary bearing structure 7 is located the one side that prefab 1 connects the material, and the secondary supports the contact and supports the surface that prefab 1 connects material one side tightly, and the secondary supports the even interval setting on the same level of the inboard surface of prefab 1 with the contact point of prefab 1. When adopting such scheme, secondary bearing structure 7 provides even tight tension of supporting to the inboard surface of prefab 1, avoids prefab 1 to take place the displacement deformation under the extrusion force of concrete.
Preferably, the secondary support structure 7 can be arranged at a plurality of height positions simultaneously, or can be arranged for a pouring construction part, and is supported in the construction process and removed after a certain period of time.
Preferably, in the present embodiment, the secondary support structure 7 is optimized and one of the following possible options is used: the secondary supporting structure 7 comprises a plurality of supporting rods which are arranged in a radial mode, and the outer end of each supporting rod is in contact and tight contact with the inner side surface of the prefabricated part 1. Wherein every bracing piece can adopt H shaped steel, can set up the cushion between the tip of bracing piece and prefab 1, and the cushion can increase area of contact, avoids taking place to warp at the extrusion force of pouring in-process prefab 1 under the progressive force of the extrusion force of concrete and bracing piece.
In order to ensure the quality of the concrete placement, optimization is performed here and one of the following possible options is used: in the process of pouring concrete, the concrete is vibrated through the reserved opening 6. When the scheme is adopted, different reserved openings 6 can be selected for vibrating and pouring, and the selection is flexible according to the condition in the actual pouring process.
In order to continuously and efficiently carry out the pouring, vibrating and closing operations of the reserved openings 6, the number and the positions of the reserved openings 6 need to be reasonably configured, and the following feasible options are adopted to carry out optimization: the reserved openings 6 are arranged on the prefabricated member 1 in rows and columns, and the distance between every two adjacent reserved openings 6 is 2.7-3.3 m. When the scheme is adopted, the concrete pouring, the vibration solidification and the welding and sealing matching of the reserved opening 6 can be smoothly realized, and the similar overall work propulsion efficiency is high.
Preferably, the distance between adjacent reserved openings 6 is set to be 3m in the present embodiment.
Preferably, when the preformed opening 6 is provided, a part of the plate member is cut from the prefabricated member 1 to form the preformed opening 6, and the cut plate member is reconnected to the preformed opening 6 as a cover plate for closing the preformed opening 6 after pouring and vibrating are completed to realize closing.
The embodiment utilizes the advantage of mechanical manufacturing precision and combines the characteristics of concrete construction; the method solves the potential quality hazard and technical defects possibly caused by the traditional construction method for pasting the wear-resistant layer on the concrete surface. Compared with the traditional construction method, the construction method can integrate and reduce the construction processes in the aspect of economic effect, and saves time and materials. The method can overcome the problem of concrete surface quality caused by the traditional wood formwork construction in quality, thereby achieving the good effects of improving the technological performance of the wear-resistant layer and prolonging the service life of the wear-resistant layer.
The advantages of the technical solution in this embodiment can be highlighted from the following aspects:
in terms of material usage:
the embodiment completely omits a flat belt and a wood outer die which are needed by the civil engineering embedded part, and the rest dosage is similar to and equivalent to that of the traditional technical scheme.
The construction process aspect:
after concrete pouring in the traditional scheme, even if the control of the pouring process is very good, the flat belt embedded part is easily immersed in concrete mortar, and the flat belt embedded part can be transferred to installation for subsequent flitch processing only by polishing.
For installation, the steel plate of the embedded part of the traditional scheme needs to be firstly cut into the size of the interval of the embedded part, and the steel plate and the embedded part strip are welded together during installation. When the concrete surface is uneven, the steel plate cannot be bent to the curvature of the concrete, and needs to be broken and welded again after being applied in place. In this embodiment, such complicated cutting of the steel plate is not required. Therefore, the length of the welding seam is reduced in the technical scheme of the embodiment.
Construction quality:
compared with the old scheme, the concrete pouring scheme of the new scheme is adopted, the wear-resistant steel plate is completely attached to the wall of the concrete storage bin, the impact force of materials can be better borne, and the quality hidden danger of impact deformation of the steel plate is effectively avoided.
Overall, the solution of the present embodiment is totally superior to the traditional solutions and still does not present any surface damage after 6 months of heavy use.
The above embodiments are just exemplified in the present embodiment, but the present embodiment is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining with each other according to the above embodiments, and any other various embodiments can be obtained by anyone in light of the present embodiment. The above detailed description should not be construed as limiting the scope of the present embodiments, which should be defined in the claims, and the description should be used for interpreting the claims.
Claims (10)
1. The construction method of the concrete surface wear-resistant layer of the solid material storage and conveying structure is characterized in that a prefabricated part (1) is arranged before the concrete structure for solid material storage and conveying is poured, the prefabricated part (1) covers the material receiving surface of the concrete structure to be poured, and the construction method comprises the following steps:
constructing a pouring steel bar structure (4), manufacturing a prefabricated part (1) according to the pouring steel bar structure (4), reserving a plurality of reserved openings (6) on the prefabricated part (1), and arranging the reserved openings (6) on the material receiving surface layer by layer from low to high;
arranging the prefabricated part (1) on a pouring steel bar structure (4) and connecting and fixing the prefabricated part, so that the prefabricated part (1) is used as a solid material to store and convey a material receiving surface of the concrete pouring structure;
arranging an anchoring piece (5) on the prefabricated piece (1), wherein the length of the anchoring piece (5) is equal to the thickness of the poured concrete, the front end of the anchoring piece (5) is in contact with the prefabricated piece (1) and is welded and fixed, and the rear end of the anchoring piece (5) penetrates through a poured steel bar structure (4);
arranging a bottom template (3) for pouring a steel bar structure (4), wherein the bottom template (3) is contacted and tightly propped against the fixed end of the anchoring piece (5); pouring concrete from the lowest reserved opening (6), stopping pouring when the distance between the height of the poured concrete and the reserved opening (6) reaches a preset value, closing the reserved opening (6), and changing to the reserved opening (6) with a higher position to continue pouring until all the reserved openings (6) are completely closed;
and after the pouring is finished, removing the bottom die after the concrete reaches the solidification time.
2. The construction method of the concrete surface wear-resistant layer of the solid material storage and transportation structure according to claim 1, wherein: the prefabricated member (1) comprises a plurality of splicing parts, and the splicing parts are sequentially spliced from bottom to top to form the whole prefabricated member (1).
3. The construction method of the concrete surface wear-resistant layer of the solid material storage and transportation structure according to claim 2, wherein: when the prefabricated member (1) is installed, the splicing part at the lowest layer is installed firstly, the splicing part and the pouring steel bar structure (4) are aligned and leveled, and then the splicing part at the upper layer is installed layer by layer.
4. The construction method of the concrete surface wear-resistant layer of the solid material storage and transportation structure according to any one of claims 1 to 3, wherein: before being connected to prefabricated component (1) and pouring steel bar structure (4), set up support piece (2) that are used for supporting prefabricated component (1), support piece (2) contact with prefabricated component (1) through a plurality of supporting part, support piece (2) support prefabricated component (1) from up down.
5. The construction method of the concrete surface wear-resistant layer of the solid material storage and transportation structure according to claim 4, wherein: the number of the supporting pieces (2) is at least two, and the supporting pieces (2) adopt a door-shaped support structure.
6. The construction method of the concrete surface wear-resistant layer of the solid material storage and transportation structure according to claim 1, wherein: the anchoring parts (5) comprise anchoring steel bars which are uniformly distributed on the outer side surface of the prefabricated part (1) at intervals.
7. The construction method of the concrete surface wear-resistant layer of the solid material storage and transportation structure according to claim 1, wherein: still including setting up secondary bearing structure (7), secondary bearing structure (7) are located prefabricated part (1) and connect the one side of material, and the secondary supports the contact and supports tight prefabricated part (1) and connect the surface of material one side, and the contact point of secondary support and prefabricated part (1) evenly separates the setting on the same level of prefabricated part (1) inboard surface.
8. The construction method of the concrete surface wear layer of the solid material storage and transportation structure according to claim 7, wherein: the secondary supporting structure (7) comprises a plurality of supporting rods which are radially arranged, and the outer end of each supporting rod is tightly contacted with the inner side surface of the prefabricated member (1).
9. The construction method of the concrete surface wear-resistant layer of the solid material storage and transportation structure according to claim 1, wherein: in the process of pouring concrete, the concrete is vibrated through the reserved opening (6).
10. The construction method of the concrete surface wear-resistant layer of the solid material storage and transportation structure according to claim 1, wherein: the reserved openings (6) are arranged on the prefabricated member (1) in rows and columns, and the distance between every two adjacent reserved openings (6) is 2.7-3.3 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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