CN211006208U

CN211006208U - Cast-in-place concrete grass planting brick system and parking lot

Info

Publication number: CN211006208U
Application number: CN201921618062.3U
Authority: CN
Inventors: 黄庆为; 王文博; 蒋英锋
Original assignee: Guangxi Hongfa Construction Group Co ltd; Zhuhai Guojia Construction Engineering Co ltd
Current assignee: Guangxi Hongfa Construction Group Co ltd; Zhuhai Guojia Construction Engineering Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-07-14
Anticipated expiration: 2029-09-26

Abstract

The application provides a cast-in-place concrete grass planting brick system and parking lot, wherein, this cast-in-place concrete grass planting brick system includes: a base layer; and a leveling layer laid over the base layer; and the geotextile is laid above the leveling layer; and a reinforcing mesh laid over the geotextile; and concrete grass planting bricks which are poured above the reinforcing mesh and distributed at intervals, wherein gaps between adjacent concrete grass planting bricks are used for planting grass. The application provides a technical scheme can improve the durability of grass planting brick.

Description

Cast-in-place concrete grass planting brick system and parking lot

Technical Field

The application belongs to the building field, especially relates to a cast-in-place formula concrete grass planting brick system and parking apron.

Background

The outdoor parking lot with the prefabricated grass planting bricks is attractive in appearance during initial construction, novel in feeling and concept, green, low in laying cost and capable of creating a rush of hot tide.

Traditional grass planting bricks are all laid on the ground after being integrally formed, after years of use, soil is naturally eroded due to being washed by heavy rain, the bricks are extruded by the gravity of an automobile, and the smooth grass planting bricks form soil pits after rain. If the soil pit is not repaired in time, the soil pit becomes more and more obvious and is not coordinated with the surrounding environment, and the soil pit becomes a failure pen for landscaping.

Disclosure of Invention

The application provides a cast-in-place concrete grass planting brick system can improve grass planting brick's durability.

This application first aspect provides a cast-in-place concrete grass planting brick system, includes:

a base layer;

and a leveling layer laid over the base layer;

and the geotextile is laid above the leveling layer;

and a reinforcing mesh laid over the geotextile;

and concrete grass planting bricks which are poured above the reinforcing mesh and distributed at intervals, wherein gaps between adjacent concrete grass planting bricks are used for planting grass.

Based on the first aspect of the present application, in a first possible implementation manner, the concrete grass-planting bricks are distributed in a quincunx shape.

In a second possible implementation manner, based on the first aspect of the present application or the first possible implementation manner of the first aspect of the present application, the plant planted in the gap is a gramineae plant and/or a cyperaceae plant.

In a third possible implementation manner based on the first aspect of the present application or the first possible implementation manner of the first aspect of the present application, the base layer is specifically composed of compacted plain soil and sand and pebbles.

Based on the first aspect of the present application or the first possible implementation manner of the first aspect of the present application, in a fourth possible implementation manner, the leveling layer is specifically composed of medium grit with a thickness of 30 mm.

Based on the first aspect of the present application or the first possible implementation manner of the first aspect of the present application, in a fifth possible implementation manner, a mortar cushion block is further disposed between the geotextile and the reinforcing mesh;

the reinforcing mesh is particularly erected above the mortar cushion block.

Based on the fifth possible implementation manner of the first aspect of the present application, in a sixth possible implementation manner, the mortar pads are distributed at intervals of 1 meter.

A second aspect of the present application provides a parking lot, wherein each parking space of the parking lot is provided with a cast-in-place concrete grass brick system as mentioned in the first aspect or any one of the possible implementations of the first aspect.

According to the technical scheme, the leveling layer is laid above the base layer by the cast-in-place concrete grass planting brick system, the geotextile laid above the leveling layer is provided with the reinforcing mesh, the concrete grass planting bricks distributed at intervals are poured above the reinforcing mesh, and grass planting is carried out through gaps between the adjacent concrete grass planting bricks. On the one hand, because the concrete grass planting brick is cast-in-place concrete grass planting brick, consequently, concrete grass planting brick is better with the ground joint degree for cast-in-place concrete grass planting brick system has gathered the ground sclerosis, and the afforestation is in an organic whole, possesses better structural integrity, when realizing high afforestation rate, can satisfy the requirement that various traffic bore, forms real green traffic passageway. In addition, through laying geotechnological cloth between screed-coat and reinforcing bar net, can prevent soil erosion and water loss, more be favorable to vegetation.

Drawings

FIG. 1 is a schematic cross-sectional view of a cast-in-place concrete grass brick system provided herein;

fig. 2 is a schematic view of a reinforcing mesh arrangement provided in the present application;

FIG. 3 is a schematic plan view of a concrete grass block provided herein;

fig. 4 is a partial schematic view of a field scene of a parking apron provided by the present application.

Detailed Description

In order to make the purpose, technical solution and beneficial effects of the present application more clear and more obvious, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1, a schematic cross-sectional view of a cast-in-place concrete grass-planting brick system includes:

a base layer 11;

and a leveling layer 12 laid over the base layer 11;

and the geotextile 13 laid above the leveling layer 12;

and a reinforcing mesh 14 laid over the geotextile 13;

and concrete grass planting bricks 15 which are poured above the reinforcing mesh 14 and are distributed at intervals, wherein gaps between the adjacent concrete grass planting bricks 15 are used for planting grass.

It should be noted that, since fig. 1 is a schematic cross-sectional view of a cast-in-place concrete grass-planting brick system, in practical applications, the mesh of the steel bar net can be arranged to avoid the grass planting area (i.e. the gap between adjacent concrete grass-planting bricks 15), and therefore, the steel bar net 14 is schematically shown as a black solid circle in fig. 1.

In the present embodiment, the base course 11 may be composed of compacted plain soil 111 and sand and gravel 112. In the actual construction process, the plain soil and sand pebbles spread on the ground can be rolled by a road roller to obtain a compacted base layer 11. Of course, in other embodiments, the base layer may be made of compacted plain soil and sand, or the base layer may be made of compacted plain soil and gravel, which is not limited herein. When the base layer is constructed by sand and plain soil, the mud content of the selected sand is not more than 10% of the mass of the sand, and the slender and flat particles in sand particles are not more than 20% so as to ensure that the sand meets certain hardness requirements.

Alternatively, the screed 12 is made of medium grit with a thickness of 30 mm, i.e. the 30 mm thick medium grit is used for leveling on the substrate. In the construction process, the medium coarse sand can be uniformly spread on a preset width to keep the surface flat. Specifically, the requirements of the leveling layer can refer to 'road foundation construction technical specification' JTG F10.

Optionally, in order to ensure a minimum protective layer thickness of the mesh reinforcement 14 and avoid direct contact between the mesh reinforcement 14 and the geotextile 13, a mortar cushion block may be provided between the geotextile and the mesh reinforcement, and the height of the mortar cushion block is equal to the protective layer thickness. As shown in fig. 2, a mesh reinforcement arrangement is provided between the geotextile 13 and the mesh reinforcement 14, and the mesh reinforcement 14 is laid on top of the mesh reinforcement 16. Specifically, during construction, according to the stress condition, the short-direction reinforcing steel bars 141 of the reinforcing mesh 14 can be laid firstly, and then the long-direction reinforcing steel bars 142 of the reinforcing mesh 14 can be laid, when the reinforcing steel bars are bound, the intersection points of two lines close to the periphery are bound, the intersection points of the middle part can be bound in a staggered way, and the intersection points of the reinforcing steel bars can be bound by the reinforcing steel bars stressed in two directions. When binding joints exist in the steel bars, the lapping length and the lapping position of the steel bars meet the requirements of construction specifications, and iron wires are applied to the lapping positions of the steel bars to be firmly tied at the center and two ends. If the welding joint is adopted, the position of the joint also meets the regulation of construction specifications except that a sample is extracted according to the regulation of welding regulations. Specifically, the construction of the mesh reinforcement 14 can refer to the standard requirements in "construction process standard for installation of steel reinforcement works" FJEJ/QBSJ020102 and "specification for welding and acceptance of steel reinforcement" JTG 18.

Optionally, the mortar pads 16 are distributed at intervals of 1 meter, and in the specific construction process, the mortar pads 16 can be arranged at intervals of 1 meter according to a quincunx shape.

Optionally, as shown in fig. 3, which is a schematic plan view of the concrete grass-planting bricks, the concrete grass-planting bricks 15 are distributed in a quincunx shape.

In the embodiment of the present application, the gaps between the adjacent concrete grass-planting bricks 15 are used for planting grass, and as shown in fig. 1, plants 17 are planted in the gaps between the adjacent concrete grass-planting bricks 15. Further, in order to make the plant color of the cast-in-place concrete grass brick system beautiful and more practical, the plant 17 may be selected from gramineae plants and/or cyperaceae plants which are drought-resistant, insect-resistant, cold-resistant and resistant to trampling. The grass can be Poa pratensis, zoysia japonica, bermuda grass, eremochloa ophiuroides and the like.

The construction process of the cast-in-place concrete grass planting brick system is explained as follows:

1. construction survey

And (5) retesting and controlling main control points of the construction route, such as triangular points, lead points and the like. And re-measuring the road center line, the sideline and the elevation, recording by using a measurement recording table, and sending to a field supervision engineer for approval. According to underground pipeline data provided by a construction unit and actual data of on-site exploration, arrangement and trend conditions of underground pipelines are firstly explored before roadbed construction, so that construction safety is guaranteed.

2. Roadbed (namely base course and leveling course) construction

The construction is mainly mechanical and is assisted by manual work. The compaction should be light first and heavy, slow first and fast second, and uniform. The fastest speed of the road roller is not suitable to exceed 4 kilometers per hour. The compaction times of the filled soil are determined by field tests according to the compaction requirement. Measures should be taken to protect the safety of underground pipelines and structures in the compaction process. The rolling is carried out from the edge of the roadbed to the center, the safe distance between the outer edge of the road roller and the edge of the roadbed is kept, and the compaction degree meets the requirement. And the surface should not have obvious phenomena such as wheel tracking, slurry turning, peeling, wave and the like. Compaction should be performed when the soil moisture content approaches an optimal moisture content value. The deviation amplitude of the water content is determined by experiments. The roadbed construction adopts a heavy compaction standard, and the filling roadbed is compacted in a layering manner.

The compaction factor should be determined by the test section. The paving is uniform, and when the thick and thin aggregates are concentrated or separated, the thick and thin aggregates should be timely and uniformly turned and stirred. Before rolling, water should be sprayed, and the water spraying amount should wet all the sand pebbles, gravels or gravels without causing slurry turning under the layer. Taking sand and pebbles and plain soil as an example to construct a base layer, all the sand and pebbles should be kept wet in the rolling process. When rolling, a road roller with the initial rolling speed of 25-30 meters per minute is adopted, after the sand and pebbles are initially stabilized, the rolling speed is controlled to 40 meters per minute until the wheel track is not more than 5 millimeters, the surface of the base layer is smooth and solid, and the phenomena of looseness and thick and thin aggregate concentration are avoided.

Leveling with medium coarse sand of 30 mm thickness. The material is evenly spread on a preset width, and the surface is smooth. And (5) checking the thickness of the loose paving material to test whether the loose paving material meets the expected requirement, and if necessary, performing material reduction or material supplement work. Refer to 'highway subgrade construction technical Specification' JTG F10.

3. Construction of reinforcing mesh

Before the reinforcing mesh is arranged, a house of geotextile is laid to prevent water and soil loss and be more beneficial to plant growth. And popping up a steel bar position line according to the steel bar space marked by the drawing. The steel bar space can not be changed at will, and collision with the cast-in-place concrete prefabricated mould is avoided. And laying the lower layer of steel bars according to the position lines of the steel bars. According to the stress condition, the short-direction reinforcing steel bars are paved first and then the long-direction reinforcing steel bars are paved. When the reinforcing steel bars are bound, every point of the intersection points close to two lines of the periphery is bound, the intersection points of the middle part can be bound in a staggered way, and the intersection points of the reinforcing steel bars are all bound by the reinforcing steel bars stressed in two directions. And placing mortar cushion blocks for the bottom plate concrete protective layer, wherein the thickness of the mortar cushion blocks is equal to that of the protective layer, and the mortar cushion blocks are placed in a quincunx shape at a distance of about every 1 m. When binding joints exist in the steel bars, the lapping length and the lapping position of the steel bars meet the requirements of construction specifications, and iron wires are applied to the lapping positions of the steel bars to be firmly tied at the center and two ends. If the welding joint is adopted, the position of the joint also meets the regulation of construction specifications except that a sample is extracted according to the regulation of welding regulations. Refer to 'construction technology Standard for Steel Bar installation engineering)' FJEJ/QBSJ020102 and 'Specification for welding and acceptance of Steel bars' JTG 18.

4. Laying of prefabricated forms

And (4) erecting the concrete formwork of the peripheral outline of the parking lot according to the pay-off position after rechecking is correct, and paying attention to the fact that the construction joint needs to meet the construction specification requirement. And sequentially laying prefabricated templates on each parking space, and rechecking the positions. The prefabricated template is laid above the reinforcing mesh, and the prefabricated module can adopt a quincunx prefabricated template, so that the concrete grass planting bricks cast and formed based on the prefabricated template are also distributed in a quincunx shape.

5. Concrete grass planting brick pouring construction

The concrete adopts qualified products, unqualified products are firmly realized, and construction can be carried out after the consent of owners and supervision engineers.

Commercial C30 concrete 150 mm thick was used. And pouring construction is carried out section by section according to the division of the construction sections. When the concrete is poured, the principle of depth to depth is followed for continuous pouring and one-step forming. When the concrete is vibrated, the vibrator is operated to move slowly and vibrate along with pouring. Refer to 'concrete structure engineering construction Specification' GB50666 and 'unified Standard for testing and accepting concrete structure engineering construction quality' GB 50300.

6. Removal of prefabricated forms

The concrete can be dismantled when the strength of the concrete can ensure that the surface and the edges and corners of the concrete are not damaged by dismantling the formwork, generally after 12 hours. The formed cast-in-place concrete can not be damaged in the dismantling process by adopting a retreating dismantling direction and manually dismantling by using a dismantling tool matched with the prefabricated template.

7. Maintaining

The curing is preferably carried out by spraying a curing agent and simultaneously moisturizing and covering. In rainy days or under the condition of sufficient maintenance water, a watering wet maintenance mode of covering a moisturizing film, a geotechnical felt, geotechnical cloth, a gunny bag, a straw curtain and the like can be adopted, and the surrounding water maintenance mode is not suitable. The curing time is determined according to the increase condition of the bending tensile strength of the concrete, is not less than 80 percent of the designed bending tensile strength, and special attention should be paid to the moisture (temperature) retention curing in the first 7 days. The curing days are preferably 14-21 days, the curing days are not less than 14 days at high temperature, and the curing days are not less than 21 days at low temperature. At the initial stage of maintenance, people, livestock and vehicles are strictly prohibited from passing, and pedestrians can pass after the design strength is 40%. During pavement maintenance, temporary bridges are constructed at the level crossings. After the panel reaches the designed bending and pulling strength, the traffic can be opened.

8. Quality acceptance

And (4) performing construction completion acceptance by a construction unit organization acceptance group. The inspection and acceptance composition comprises related responsible persons of units such as construction, investigation, design, construction, supervision, facility management and the like. The relevant experts can also be invited to participate. The group leader of the acceptance group is assumed by the construction unit. The completion of the project should be checked and accepted after the quality of each item, each subsection and each unit project constituting the road is checked and accepted. When the design rules are used for road deflection tests and load tests, the acceptance must be carried out after the tests are finished. The completion data should be completed before completion acceptance. Refer to GBJ97 and CJJ1, which are the specifications of construction and acceptance of cement concrete pavements and urban road engineering.

9. Grass planting

The plant of gramineae and cyperaceae with drought resistance, insect resistance, cold resistance and strong trampling resistance is mainly selected. The grass of Poa pratensis, zoysia japonica, bermuda grass, eremochloa ophiuroides and the like are often selected, the zoysia japonica is the most common, and the color and the practicability are ideal.

Another embodiment of the present application further provides a parking lot, each parking space of the parking lot is provided with a cast-in-place concrete grass planting brick system, wherein the cast-in-place concrete grass planting brick system specifically can be the cast-in-place concrete grass planting brick system in the foregoing embodiment, and details are not repeated here.

Fig. 4 is a partial schematic view of a field scene of a parking lot according to an embodiment of the present application, and as can be seen from fig. 4, a cast-in-place concrete grass brick system is disposed in each parking space of the parking lot.

In this application, through set up cast-in-place formula concrete grass planting brick system at parking apron, when overcoming traditional grass planting brick terrace and use the shortcoming, reduced engineering cost, realized green ecology, environmental protection's effect, form real green traffic passageway, embodied the design intention well.

It should be understood that the above-mentioned embodiments are merely preferred embodiments of the present application, and the product form of the present application is not limited to the illustrations and the embodiments, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cast-in-place concrete grass planting brick system, comprising:

a base layer;

and a leveling layer laid over the base layer;

and the geotextile is laid above the leveling layer;

and a reinforcing mesh laid over the geotextile;

2. The cast-in-place concrete grass block system of claim 1, wherein the concrete grass blocks are distributed in a quincunx pattern.

3. A cast-in-place concrete grass block system according to claim 1 or 2, wherein the plants planted in the voids are gramineae and/or cyperaceae.

4. A cast-in-place concrete grass block system according to claim 1 or 2, characterized in that the screed in particular consists of medium grit of 30 mm thickness.

5. The cast-in-place concrete grass planting brick system according to claim 1 or 2, wherein a mortar cushion block is further arranged between the geotextile and the reinforcing mesh;

the reinforcing mesh is particularly erected above the mortar cushion block.

6. The cast-in-place concrete grass block system of claim 5, wherein the mortar blocks are spaced every 1 meter.

7. Parking apron, characterized in that each parking stall of the parking apron is provided with a cast-in-place concrete grass block system according to one of claims 1 to 6.