CN218814962U - Heavy-load ground structure for large-scale exhibitions - Google Patents

Abstract

The utility model provides a heavy-duty ground structure of large-scale exhibitions project sets up in the foundation ditch, and supreme reinforced concrete structure bottom plate, waterproof layer, pea gravel concrete protective layer, metalling, concrete cushion, wear-resisting concrete layer and the alloy aggregate wearing surface layer of including in proper order are down followed. Compare traditional heavy load ground structure, the utility model provides a heavy load ground structure has better wearability resistance to compression impact resistance, more is fit for being applied to the heavy load ground structure of exhibitions project.

Description

Heavy-load ground structure for large-scale exhibitions

Technical Field

The utility model relates to a heavily carry ground structure technical field, especially relate to a heavy-duty ground structure of large-scale exhibitions project.

Background

In recent years, with the continuous development of economy in China, the requirements of people on large-scale exhibitions are continuously improved, and the work load and the use frequency of the ground of an exhibition hall are continuously increased. However, compare the heavy load ground in other places, the earth's surface of exhibitions project can stand more crowds trample/stop, the process of freight dolly, the goods falls down when friction that light-duty goods pulled and unload, the impact that the participant produced the earth's surface when showing for the exhibition personnel, consequently can appear the earth's surface too smoothly after shorter live time, clean personnel clear up the earth's surface after or the rainy day exhibition personnel bring the rainwater into the circumstances that makes the personnel of process appear slipping and falling injury after the exhibitions place, or the pit appears in the earth's surface, sunken, make whole unaesthetic and influence the exhibitions image. In addition, the exhibitions project can be subjected to long-term pressure in regions and different regions where people/goods pass through due to different exhibitor enterprises and exhibition types, so that the whole heavy-load ground needs to have better pressure bearing and pressure bearing capacity, and the ground surface is prevented from sinking.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a large-scale exhibitions project heavy load ground structure, the utility model discloses a realize like this:

the utility model provides a heavy-duty ground structure of large-scale exhibitions project, sets up in the foundation ditch, from supreme reinforced concrete structure bottom plate, waterproof layer, fine aggregate concrete protective layer, metalling, concrete cushion, wear-resisting concrete layer and the wear-resisting surface course of alloy aggregate of including in proper order down.

Preferably, the reinforced concrete structure bottom plate is a self-waterproof structure bottom plate with an anti-permeability grade of P10, and the reinforced concrete layer is doped with the composite reinforced concrete rust inhibitor.

Preferably, the waterproof layer is formed by vertically and horizontally brushing cement-based capillary crystalline waterproof paint with the thickness of 1.0, and the thickness of the waterproof layer is 0.3-0.5 mm.

Preferably, the fine aggregate concrete protective layer has a concrete grade of C20 and a thickness of 50mm.

Preferably, the thickness of the gravel layer is 400mm, the gravel layer is formed by paving gravel with the particle size of 5-32 mm, and the gravel layer also comprises cement mortar with the particle size of M5.0.

Preferably, the concrete grade of the concrete cushion layer is C20, and the thickness is 200mm.

Preferably, the concrete grade on wear-resisting concrete layer is C30, and thickness is 200mm, set phi 8@200 two-way reinforcing bar net in the wear-resisting concrete layer, just be provided with in the wear-resisting concrete layer and be no less than 4 @100 two-way reinforcing bar nets.

Preferably, the alloy aggregate wear-resistant surface layer is formed by construction of a special liquid hardening agent for a carborundum wear-resistant floor.

The beneficial effects of the utility model reside in that:

1. through setting up wear-resisting concrete layer and alloy aggregate wearing layer at the superiors of heavily loaded ground structure, improved resistance to compression, the ability of shocking resistance and stand wear and tear of the earth's surface on exhibitions project heavy load ground, the while ground top layer that the alloy aggregate wearing layer formed more is favorable to the cleanup crew to clean and maintain.

2. Prevent the ground settlement through set up reinforced concrete structure bottom plate on basic soil layer, set up the waterproof layer on reinforced concrete layer, avoid groundwater infiltration to influence the heavy load ground wholly, set gradually fine aggregate concrete protective layer, metalling, concrete cushion, wear-resisting concrete layer and alloy aggregate wear-resisting surface layer on the waterproof layer again, improved the holistic compressive capacity of heavy load ground and ability of resistance to wears.

Drawings

Fig. 1 is a schematic sectional view of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The utility model provides a heavy-duty ground structure of large-scale exhibitions project sets up in the foundation ditch, and supreme reinforced concrete structure bottom plate 1, waterproof layer 2, fine aggregate concrete protective layer 3, metalling 4, concrete cushion 5, wear-resisting concrete layer 6 and the wear-resisting surface course of alloy aggregate of including in proper order are down followed.

Preferably, the reinforced concrete structure bottom plate 1 is a self-waterproof structure bottom plate with an anti-permeability grade of P10, and the reinforced concrete layer is doped with the composite reinforced concrete rust inhibitor.

Further, after the reinforced concrete structure bottom plate 1 is processed to meet the construction requirements, vertically and horizontally brushing a cement-based capillary crystalline waterproof coating with the thickness of 1.0 thick on the surface of the reinforced concrete structure bottom plate to form a waterproof layer 2, wherein the thickness of each brushing is controlled within the range of 0.3-0.5 mm, and preferably, one brushing is not sticky before the interval time of each brushing.

Furthermore, a lateral waterproof layer 2 formed by 1.0 thick cement-based capillary crystalline waterproof paint is coated on the surface of the inner side wall of the foundation pit, and the coating thickness is controlled within the range of 0.3-0.5 mm.

Furthermore, the upper surface of the waterproof layer 2 is poured with a fine aggregate concrete protective layer 3, the fine aggregate concrete protective layer is compacted by vibration of a plane vibrator during pouring, the fine aggregate concrete protective layer is leveled and covered with a plastic film after pouring, and the concrete is timely watered and maintained after final setting. The thickness of the fine aggregate concrete protective layer 3 is 50mm.

Further, after the fine aggregate concrete protection layer 3 reaches the strength, gravel backfilling is carried out on the upper surface of the fine aggregate concrete protection layer 3 to form a gravel layer 4 with the height of 400mm, and gravel with the particle size of 5-32 mm is preferably selected for the gravel layer 4.

Furthermore, in order to ensure that the gravel is densely filled, filling is carried out in two layers, each layer is 200mm, and in the filling process, the filling is laid from the outer side to the inner side in sequence. And backfilling each crushed stone layer 4 until the specific elevation is 1.5-2.5 cm higher than the ground elevation during filling, and then rolling and flattening by using a crawler-type excavator, wherein wheel tracks are overlapped. Pouring M5.0 cement mortar after the pressure is stabilized, and vibrating and compacting. When grouting, gaps among the broken stones need to be filled, the surface of the mortar is flush with the broken stones, and edges and corners of the broken stones are exposed on the mortar. And (3) immediately after grouting is finished, fully vibrating by using a flat plate vibrator, overlapping 10-20 cm during vibration, and forming a cement mortar layer 41 on the upper end surface of the gravel layer 4 within a vibration time of not less than 30S during vibration at the same position.

Further, a concrete cushion 5 with the thickness of 200mm is poured on the gravel layer 4, the pouring of the concrete cushion 5 is carried out from one end to the other end, and a flat plate vibrator is adopted for vibrating. The concrete should be poured continuously at one time, and if the concrete is intermittent, construction joints should be reserved according to regulations. After the concrete is vibrated to be compact, the surface is rubbed to be flat by applying a wooden trowel. And after the cushion layer is poured, timely maintaining. The concrete grade of the concrete cushion 5 is C20.

Further, after the concrete cushion layer 5 is cured, firstly, the cement slurry is used, and a wear-resistant concrete layer 6 of 200mm is poured on the concrete cushion layer 5. Before pouring, phi 8@200 bidirectional reinforcing mesh is internally matched, the periphery of a pipe ditch needs to be encrypted, 4 channels are not less than @100 bidirectional reinforcing mesh, reinforcing steel bars are bound according to specifications, and certain flatness and elevation are guaranteed during construction to ensure the thickness of a wear-resistant concrete surface layer. Paving the surface layer must be carried out before the transition layer is in initial setting, and the surface layer is strickled off by a scraper and the elevation and the flatness are measured. After the leveling, a disc mechanical smoothing machine is adopted for rolling and slurry extraction, and the first smoothing is carried out before initial setting. Surface layer is smeared after initial setting and before final setting, iron is adopted for smearing and pressing for 2-3 times, and the directions of smearing and pressing for each time are mutually vertical. And after survival for 24h, covering, watering and curing for 7d. The concrete grade of the wear-resistant concrete cushion layer 5 is C30.

And finally, forming a warm gray alloy aggregate wear-resistant surface layer on the surface of the wear-resistant concrete by using a special liquid hardening agent for the carborundum wear-resistant floor. The surface layer construction is divided into two parts: when the initial setting time of the base concrete is controlled for the first time and a 3 mm footprint can be left when people get on the base concrete, uniformly spreading carborundum on the surface of the concrete according to a certain fixed direction by about half of the total amount, and after the carborundum surface spread for the first time becomes dark, using a polishing machine with a grinding disc to trowel and ensure that the corners are all compacted. After the first compaction, the rest carborundum is spread on the ground in the direction perpendicular to the first spreading direction, and is smoothed and polished by electric steel. The extended area is scored 1 × 1 every 3m × 3 m.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a heavy-duty ground structure of large-scale exhibitions project, sets up in the foundation ditch, its characterized in that, supreme reinforced concrete structure bottom plate, waterproof layer, fine aggregate concrete protective layer, metalling, concrete cushion, wear-resisting concrete layer and the wear-resisting surface course of alloy aggregate of including in proper order down.

2. The heavy-duty ground structure for a large-scale exhibitions of claim 1,

the reinforced concrete structure bottom plate is a self-waterproof structure bottom plate with impervious grade P10.

3. The heavy-duty ground structure for a large-scale exhibitions of claim 1,

the waterproof layer is formed by vertically and horizontally brushing cement-based capillary crystalline waterproof paint with the thickness of 1.0, and the thickness of the waterproof layer is 0.3-0.5 mm.

4. The heavy-duty floor structure for large exhibitions as claimed in claim 1,

the concrete grade of the fine aggregate concrete protective layer is C20, and the thickness is 50mm.

5. The heavy-duty floor structure for large exhibitions as claimed in claim 1,

the thickness of the gravel layer is 400mm, the gravel layer is formed by paving gravel with the particle size of 5-32 mm, and the gravel layer also comprises M5.0 cement mortar.

6. The heavy-duty floor structure for large exhibitions as claimed in claim 1,

the concrete grade of the concrete cushion is C20, and the thickness is 200mm.

7. The heavy-duty floor structure for large exhibitions as claimed in claim 1,

the concrete grade on wear-resisting concrete layer is C30, and thickness is 200mm, set phi 8@200 two-way reinforcing bar net in the wear-resisting concrete layer, just be provided with in the wear-resisting concrete layer and be no less than 4 at 100 two-way reinforcing bar nets.

Images