阅读说明：本技术 绿化结构土、包含绿化结构土的阻根结构及其施工方法 (Greening structure soil, root-blocking structure containing greening structure soil and construction method of root-blocking structure ) 是由 陈质毅 封伟 王贺 王昂 白学永 于 2020-08-03 设计创作，主要内容包括：本发明公开了绿化结构土、包含绿化结构土的阻根结构及其施工方法,绿化结构土,包括如下组分：100个单位的干重的石子骨料、20-25个单位的粘壤土、0.035个单位的粘接剂、6.6-8个单位的水。树木阻生结构,包括基础地基层、回填土、滤水管、敷设在滤水管上的土工布、树穴开孔、设置在树穴开孔内的树球、设置在树穴开孔四周的阻根区、填充设置在阻根区内的绿化结构土以及覆土完成面层。采用绿化用结构土,既能满足道路承载力要求,绿化结构土较大的空隙又能满足植物根系的生长,此绿化用绿化结构土可广泛用于人行铺装、景观道路铺装等硬质地面,有很好的生态效益。(The invention discloses greening structure soil, a root-resisting structure containing the same and a construction method thereof, wherein the greening structure soil comprises the following components: 100 units of dry weight of stone aggregate, 20-25 units of clay loam, 0.035 units of binder, 6.6-8 units of water. The tree growth stopping structure comprises a foundation layer, backfill soil, a water filter pipe, geotextile laid on the water filter pipe, a tree pit opening, tree balls arranged in the tree pit opening, a root stopping area arranged around the tree pit opening, greening structure soil filled in the root stopping area and a soil covering finishing surface layer. The greening structural soil can meet the requirement of road bearing capacity, the large gap of the greening structural soil can meet the growth of plant roots, and the greening structural soil can be widely applied to hard ground such as pedestrian pavement and landscape road pavement and has good ecological benefits.)

1. Greening structure soil, its characterized in that: comprises the following components: 100 units of dry weight of stone aggregate, 20-25 units of clay loam, 0.035 units of binder, 6.6-8 units of water.

2. A green structural soil as claimed in claim 1, wherein the stone aggregate is granite; the particle size of the stone aggregate is 40-75 mm.

3. A green structural soil as claimed in claim 1, wherein the adhesive is polypropylene.

4. The greening structural soil of claim 1, wherein the proportion of each component of the structural soil is stone aggregate, clay loam, water, tackifier = 10: 2.5: 0.004: 1.5.

5. a green structural soil as claimed in claim 1, wherein the water is drinkable fresh water or reclaimed water.

6. A tree stopping structure containing the greening structural soil of any one of claims 1 to 5, comprising a foundation base layer (1), backfill soil (2), a strainer, geotextiles laid on the strainer, and a tree pit opening (3), the tree planting device comprises tree balls (4) arranged in tree pit openings (3), a root blocking area (5) arranged around the tree pit openings (3), greening structure soil filled in the root blocking area (5), an earthing completion surface layer (6) and a tree pond cover plate erected on the earthing completion surface layer (6), a water filter pipe comprises a vertical pipe (7) and a coil pipe (8), the top of the vertical pipe (7) is lower than the top surface of the earthing completion surface layer (6), the bottom of the vertical pipe (7) is communicated with the coil pipe (8), the coil pipe (8) is arranged at the bottom of the tree pit openings (3), the coil pipe (8) is provided with a water outlet, and the water outlet is communicated with a municipal drainage pipe; backfill (2) is arranged between the bottom of the coil pipe (8) and the foundation (1), and the backfill (2) is arranged around the root resistance area (5).

7. A tree stopping structure as defined in claim 6, characterised in that the root stopping zone (5) is circular in cross-section, the radius of the root stopping zone (5) being 1500 mm.

8. The construction method of the tree growth-stopping structure according to claim 6 or 7, comprising the following specific steps:

firstly, preparing a greening structural soil material; mixing broken stone, clay, water, soil tackifier and the like according to different proportions;

step two, stirring the mixture of the greening structural soil; mixing the greening structure soil on the pavement surface in the mixing facility by using a forklift or similar equipment in proportion to mix the greening structure soil, so that the greening structure soil cannot be stirred on site; adding water when the forklift falls and at the same time, and stirring all the materials until a certain mixing degree is reached; the water content is kept fully and stably all the time, and the water content is measured and monitored during and after the stirring process;

step three, preparing on site;

cleaning the on-site planting pond before backfilling the greening structural soil, so that pollutants cannot be contained; the method protects the adjacent road or structure and prevents the pollution caused by the soil filling work; laying filter pipes for greening structural soil in a paving area, keeping the positions of arbor tree balls (4) by using a round steel mould before backfilling operation, and erecting a planting pool by using a template;

backfilling, namely laying greening structural soil in layers, and laying thick ramming; paving greening structural soil and pipelines for cross construction; a step of covering a greening structure soil area or planting soil area which does not need to be planted immediately with geotextile to prevent pollution;

and fifthly, planting, namely planting the seedlings according to the positions of the remained soil balls after the greening structure soil is paved, backfilling common planting soil and backfilling soil (2) to the gaps after planting, and compacting.

9. The construction method according to claim 8, wherein in the third step, the circular steel film is larger than the soil ball by 300mm in outer diameter.

10. The construction method according to claim 8, wherein in the fourth step, each layer is 200-250mm when the greening structural soil is layered.

Technical Field

The invention relates to the field of ground construction, in particular to greening structural soil, a root-resisting structure containing the same and a construction method thereof.

Background

Urban greening is the activity of growing plants to improve the urban environment. Urban landscaping, which is a reduction organization in an urban ecosystem, has the ability to restore the original state after being disturbed and destroyed by external factors, which is known as the reduction function of the urban ecosystem. The greening engineering must be carried out by a case approved greening engineering design and related construction documents.

At present, in landscape architecture construction, greening planting and hard landscape are combined more and more tightly. Under the background of urban modernization, the green space gradually shrinks, and the plant root system often grows to intersect with the road pavement position.

Because the common planting soil is not compacted too densely, the soil compacted degree under hard pavement is not required to be settled easily, and if the planting soil is compacted too densely, the development and growth of plant roots are influenced.

Disclosure of Invention

The invention aims to provide greening structural soil, a root-blocking structure containing the same and a construction method thereof, and aims to solve the technical problems that the bearing of an adjacent road has great damage to the development of plant roots, the opposite surface layer is damaged in the development process of the plant roots, the pavement is carried out by people, and the pavement effect of landscape roads is poor.

In order to achieve the purpose, the invention adopts the following technical scheme: the invention provides a greening structural soil, which comprises the following components: 100 units of dry weight of stone aggregate, 20-25 units of clay loam, 0.035 units of binder, 6.6-8 units of water.

Further, the stone aggregate is granite; the particle size of the stone aggregate is 40-75 mm.

Further, the adhesive is polypropylene adhesive. (PAM)

Further, the proportion of each component of the structural soil is that macadam, clay, water and a soil tackifier = 10: 2.5: 0. 004: 1.5.

further, the water is drinkable fresh water or regenerated water.

The invention also provides a tree life-stopping structure containing greening structure soil, which comprises a foundation ground base layer 1, backfill soil 2, a water filter pipe, geotextile laid on the water filter pipe, a tree pit opening 3, a tree ball 4 arranged in the tree pit opening 3, a root-stopping area 5 arranged around the tree pit opening 3, greening structure soil filled in the root-stopping area 5, an earth covering finishing surface layer 6 and a tree pit cover plate erected on the earth covering finishing surface layer 6, wherein the water filter pipe comprises a vertical pipe 7 and a coil pipe 8, the top of the vertical pipe 7 is lower than the top of the earth covering finishing surface layer 6, the bottom of the vertical pipe 7 is communicated with the coil pipe 8, the coil pipe 8 is arranged at the bottom of the tree pit opening 3, and the coil pipe 8 is provided with a water outlet which is communicated with a municipal drainage pipe; backfill 2 is arranged between the bottom of the coil pipe 8 and the foundation stratum basale 1, and the backfill 2 is arranged around the root blocking area 5. Furthermore, the cross section of the root resistance area is circular, and the radius of the root resistance area is 1500 mm.

The invention also provides a construction method of the tree ecological blocking structure, which comprises the following specific steps:

step one, preparing a structural soil material for greening; mixing broken stone, clay, water, soil tackifier and the like according to different proportions;

step two, stirring the mixture of the greening structural soil; mixing the greening structure soil on the pavement surface in the mixing facility by using a forklift or similar equipment in proportion to mix the greening structure soil, so that the greening structure soil cannot be stirred on site; adding water when the forklift falls and at the same time, and stirring all the materials until a certain mixing degree is reached; the water content is kept fully and stably all the time, and the water content is measured and monitored in the stirring process and after the stirring is finished.

Step three, preparing on site;

cleaning the on-site planting pond before backfilling the greening structural soil, so that pollutants cannot be contained; the method protects the adjacent road or structure and prevents the pollution caused by the soil filling work; for the greening structure soil in the paving area, laying filter pipes, keeping the positions of arbor tree balls by adopting a round steel mould before backfilling operation, and erecting a common planting pool by adopting a template.

Backfilling, namely laying greening structural soil in layers, and laying thick ramming; paving greening structural soil and pipelines for cross construction; and a measure of covering geotextile is carried out on a greening structure soil area or planting soil area which does not need to be planted immediately, so that pollution is prevented.

And fifthly, planting, namely planting the seedlings according to the positions of the remained soil balls after the greening structure soil is paved, backfilling common planting soil to the gaps after planting, and compacting.

Furthermore, in the first step, the particle size of the crushed stone is larger than 50mm, and the proportion of the crushed stone is not more than 70%.

Furthermore, in the second step, after the stirring is completed, the plastic cloth must be loaded and covered as soon as possible and then transported to the field for use.

Further, in the third step, the circular steel film is larger than the soil ball with the outer diameter of 300 mm.

Further, in the fourth step, each layer is 200-250mm when the greening structure soil is paved in layers.

Further, in the fifth step, the compaction degree of the greening structural soil is 95%.

The invention has the beneficial effects that:

the greening structural soil, the root-blocking structure containing the greening structural soil and the construction method thereof adopt the greening structural soil, can meet the requirement of road bearing capacity, have larger gaps and can meet the growth of plant roots, and the greening structural soil can be widely used for hard ground such as pedestrian pavement, landscape road pavement and the like and has good ecological benefit.

The greening structure soil, the root-blocking structure containing the greening structure soil and the construction method thereof are characterized in that the greening structure soil is formed by manually mixing broken stones with certain particle sizes, clay, water, a soil tackifier and the like according to a proportion, can meet the strength requirement of paving concrete, asphalt and surface layer materials, and has large pores necessary for plant root growth and air exchange. Meanwhile, in the process of plant growth and root system development, the damage of the root system to the surface layer can be avoided due to the internal space characteristic of the structural soil.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The primary objects and other advantages of the invention may be realized and attained by the instrumentalities particularly pointed out in the specification.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a top view of a tree stopping structure.

Reference numerals: 1-foundation ground layer, 2-backfill, 3-hole opening of tree pits, 4-tree balls, 5-root blocking area, 6-soil covering finishing surface layer, 7-vertical pipe and 8-coil pipe.

Detailed Description

The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and illustrating the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.