Ground structure in forest-water integrated construction

Abstract

The utility model discloses a ground structure in forest and water integrated construction. The technical problem that in the prior art, the appearance of a ground structure is extremely prone to deformation is solved. The forest and water integrated structure comprises a shaped island, a pond and / or a depression, plant pits are formed in the island, and the ground structure comprises a plain soil layer, a clay layer and a modified soil layer which are distributed from bottom to top; a first gravel layer is laid on the surface of the modified soil layer at the outer edge of the pond and / or depression, and second gravel layers are laid on the surfaces of the other modified soil layers at intervals; and a sand stone layer is arranged between the modified soil layer and the clay layer at the plant pit. According to the ground structure, all the structural layers are reasonable in design, settlement, erosion or structural damage can be prevented in the long-term use process through the synergistic effect of all the structural layers, and the long-term attractiveness of the ground structure is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of forest and water integration, specifically, relate to the ground structure in the forest and water integration construction. BACKGROUND

[0002] The park city is the new era urban and rural human settlement construction concept and ideal city construction mode. Water, forest, island and city are integrated, and the park city landscape is increased in the natural lake or artificial lake by constructing the forest and water integration mode, and the city forest wetland is formed, which can reflect the ecology, publicness and openness of the park city. However, at present, after the island, pond and / or depression are shaped, the water plants and trees are usually planted after the soil body is rammed, so that the ground structure appearance is easily deformed, and it is difficult to maintain the aesthetic property for a long time. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the utility model is to provide the ground structure in the forest and water integration construction, so as to solve the technical problem that the ground structure appearance is easily deformed in the prior art.

[0004] In order to realize the above-mentioned purpose, the utility model provides the ground structure in the forest and water integration construction, and the technical scheme is as follows:

[0005] The ground structure in the forest and water integration construction, the forest and water integration includes the shaped island, pond and / or depression, the tree hole is arranged on the island, and the ground structure includes the soil layer, clay layer and modified soil layer distributed from bottom to top; the first gravel layer is laid on the surface of the modified soil layer at the outer edge of the pond and / or depression, and the second gravel layer is laid on the surface of the remaining modified soil layer; the sand and stone layer is arranged between the modified soil layer and the clay layer at the tree hole.

[0006] In the above-mentioned ground structure: the soil as the base layer can provide basic support after compaction; the clay layer usually has low permeability and can be used for seepage prevention to prevent excessive water infiltration from causing unstable structure; the modified soil layer refers to the improved soil, which has good water permeability or stability, and enhances the compression resistance and erosion resistance; the gravel layer helps to disperse the load, reduces soil erosion, prevents structure deformation, and the first gravel layer at the outer edge can also drain water and prevent the edge from being washed by water; the second gravel layer laid at other places can also be used to inhibit the growth of aquatic plants; the sand and stone layer is mixed by sand and gravel, which can improve the water permeability, avoid waterlogging of the tree roots, and also stabilize the soil around the tree hole, prevent the structure deformation caused by the growth or root system expansion of the trees. It can be seen that the ground structure of the utility model has reasonable structure layer design, and through the synergistic effect between the structure layers, the settlement, erosion or structure damage can be prevented in long-term use, and the long-term aesthetic property of the ground structure is maintained.

[0007] As a further improvement of the ground structure in the forest-water integrated construction described above, a waterproof layer is further arranged between the plain soil layer and the clay layer of the pond and / or the depression. Thus, water infiltration leading to soil softening or settlement is further prevented, which is particularly important in the ground structure of the pond or the depression.

[0008] As a further improvement of the ground structure in the forest-water integrated construction described above, the thickness of the clay layer is 500-600 mm, and the thickness of the modified soil layer is 300-400 mm. Thus, the construction is facilitated, and the functions of the clay layer and the modified soil layer are ensured.

[0009] As a further improvement of the ground structure in the forest-water integrated construction described above, the first gravel layer and the second gravel layer are formed by piling up gravels with a particle size of 50-100 mm.

[0010] As a further improvement of the ground structure in the forest-water integrated construction described above, the length of the first gravel layer is 1000-1500 mm, and the second gravel layer is laid around the aquatic plants.

[0011] As a further improvement of the ground structure in the forest-water integrated construction described above, the sand and stone layer is arranged around the tree hole with an extension of 500-800 mm beyond the outer edge of the tree hole. Thus, the water permeability around the tree hole is ensured.

[0012] As a further improvement of the ground structure in the forest-water integrated construction described above, a modified soil body is further filled in the tree hole. Thus, the survival rate of the tree is improved.

[0013] As a further improvement of the ground structure in the forest-water integrated construction described above, the modified soil layer is formed by mixing plain soil, clay, loam, organic matter and vermiculite, and the modified soil body is formed by mixing clay, loam, organic matter and vermiculite. The plain soil refers to natural undisturbed soil that has not been artificially improved or contaminated, and maintains the physical and chemical properties in the natural deposition state. The clay is a fine-grained soil with a particle size of <0.002 mm and a particle size ratio of >40%, and is mainly composed of layered silicate minerals such as montmorillonite and kaolinite, and has significant plasticity. The loam is a soil that is approximately evenly mixed with sand particles (0.05-2 mm), silt particles (0.002-0.05 mm) and clay particles (<0.002 mm), and the particle ratios of the three types of particles are 40%, 40% and 20% respectively (USDA classification standard). The organic matter is preferably but not limited to any of compost, peat moss, biogas residue, vermicompost, biochar and lignin modified material.

[0014] The embodiments of the present application provided in the specification will be further described below in conjunction with the drawings and specific embodiments. Additional aspects and advantages of the embodiments of the present application provided in the specification will be part of the description below, some will become apparent from the description below, or will be learned through practice of the embodiments of the present application provided in the specification. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings constituting part of the embodiments of the present application provided in the specification serve to aid the understanding of the embodiments of the present application provided in the specification, and the content provided in the drawings and its related description in the embodiments of the present application provided in the specification can be used to explain the embodiments of the present application provided in the specification, but do not constitute improper limitations on the embodiments of the present application provided in the specification. In the drawings:

[0016] Figure 1 It is a structural schematic view of the ground structure in the forest-water integrated construction of the utility model.

[0017] The related marks in the above drawings are:

[0018] 100- soil layer, 200- clay layer, 300- modified soil layer, 410- first gravel layer, 420- second gravel layer, 500- waterproof layer, 600- sand and stone layer, 700- modified soil body. DETAILED DESCRIPTION

[0019] The embodiments of the present application provided in the specification will be further described below in conjunction with the drawings and specific embodiments. Additional aspects and advantages of the embodiments of the present application provided in the specification will be part of the description below, some will become apparent from the description below, or will be learned through practice of the embodiments of the present application provided in the specification.

[0020] The technical solutions and technical features provided in each part of the embodiments of the present application provided in the specification, including the following description, can be combined with each other without conflict.

[0021] In addition, the embodiments of the embodiments of the present application provided in the specification involved in the following description are generally only a part of the embodiments of the present application provided in the specification rather than all the embodiments, therefore, all other embodiments obtained by the ordinary skilled in the art based on the embodiments of the present application provided in the specification without making creative efforts should belong to the scope of protection of the embodiments of the present application provided in the specification.

[0022] In the embodiments of the application provided in the specification, the terms and units in the embodiments of the application provided in the specification: the terms "include", "contain", "have" and any variants thereof in the specification and claims and related parts of the embodiments of the application provided in the specification are intended to cover non-exclusive inclusion. In addition, other related terms and units in the embodiments of the application provided in the specification can be reasonably interpreted based on the related content of the embodiments of the application provided in the specification.

[0023] Figure 1 The utility model discloses a ground structure in the forest and water integrated construction.

[0024] As Figure 1 The forest and water integration includes shaped islands, ponds and / or depressions, and the islands are provided with tree holes. The ground structure includes a raw soil layer 100, a clay layer 200 and a modified soil layer 300 distributed from bottom to top. The thickness of the clay layer 200 is 500 mm, and the thickness of the modified soil layer 300 is 300 mm.

[0025] The modified soil layer 300 surface at the outer edge of the pond and / or depression is paved with a first gravel layer 410, and the remaining modified soil layer 300 surface is paved with a second gravel layer 420 at intervals. The first gravel layer 410 and the second gravel layer 420 are formed by piling up gravel with a particle size of 50-100 mm. The length of the first gravel layer 410 is 1000 mm. The second gravel layer 420 is paved around the aquatic plants. A waterproof layer 500 is further provided between the raw soil layer 100 and the clay layer 200 of the pond and / or depression. The waterproof layer 500 is a geomembrane.

[0026] A sand and gravel interlayer 600 is provided between the modified soil layer 300 and the clay layer 200 at the tree hole. The sand and gravel interlayer 600 extends 500-800 mm beyond the outer edge of the tree hole. The sand and gravel interlayer 600 is formed by mixing sand and gravel. The tree hole is filled with a modified soil body 700, which is arranged between the soil ball at the root of the tree and the raw soil layer 100.

[0027] The modified soil layer 300 is preferably but not limited to a mixture of 40% raw soil, 15% clay, 25% loam, 15% organic matter and 5% vermiculite by mass fraction.

[0028] The modified soil body 700 is preferably but not limited to a mixture of 12% clay, 55% loam, 18% organic matter and 15% vermiculite by mass fraction.

[0029] The above description is provided on the basis of the embodiments of the present application provided in the present specification. A person skilled in the art can implement the embodiments of the present application provided in the present specification on the basis of the above description. Based on the above description of the embodiments of the present application provided in the present specification, all other preferred embodiments and embodiments obtained by a person skilled in the art without creative labor shall fall within the scope of protection of the embodiments of the present application provided in the present specification.

Claims

1. The ground structure in the integrated forest and water construction, which includes shaped islands, ponds, and / or depressions, with tree pits on the islands, characterized by: The ground structure includes, from bottom to top, a plain soil layer (100), a clay layer (200), and a modified soil layer (300); the modified soil layer (300) at the outer edge of the pond and / or depression is covered with a first gravel layer (410), and the modified soil layer (300) at other intervals is covered with a second gravel layer (420); a sand-gravel layer (600) is provided between the modified soil layer (300) and the clay layer (200) at the tree pit.

2. The ground structure in the integrated forestry and water system construction as described in claim 1, characterized in that: A waterproof layer (500) is also provided between the soil layer (100) and the clay layer (200) of the pond and / or depression.

3. The ground structure in the integrated forestry and water system construction as described in claim 1, characterized in that: The thickness of the clay layer (200) is 500-600 mm, and the thickness of the modified soil layer (300) is 300-400 mm.

4. The ground structure in the integrated forestry and water system construction as described in claim 1, characterized in that: The first gravel layer (410) and the second gravel layer (420) are formed by the accumulation of gravel with a particle size of 50 to 100 mm.

5. The ground structure in the integrated forestry and water system construction as described in claim 1, characterized in that: The first gravel layer (410) has a length of 1000-1500 mm; the second gravel layer (420) is laid around the aquatic plants.

6. The ground structure in the integrated forestry and water system construction as described in claim 1, characterized in that: The sand and gravel layer (600) extends 500-800 mm beyond the outer edge of the tree pit.

7. The ground structure in the integrated forestry and water system construction as described in claim 1, characterized in that: It also includes modified soil (700) used to fill the tree pit.

8. The ground structure in the integrated forest and water construction as described in claim 7, characterized in that: The modified soil layer (300) is composed of a mixture of plain soil, clay, loam, organic matter and vermiculite; the modified soil body (700) is composed of a mixture of clay, loam, organic matter and vermiculite.

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