CN220580013U - Structure layer for treating filled soil - Google Patents
Structure layer for treating filled soil Download PDFInfo
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- CN220580013U CN220580013U CN202322010408.4U CN202322010408U CN220580013U CN 220580013 U CN220580013 U CN 220580013U CN 202322010408 U CN202322010408 U CN 202322010408U CN 220580013 U CN220580013 U CN 220580013U
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- layer
- soil
- compacting
- compaction
- backfill
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- 239000002689 soil Substances 0.000 title claims abstract description 102
- 238000005056 compaction Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000004568 cement Substances 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 13
- 239000002699 waste material Substances 0.000 claims abstract description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 7
- 239000004571 lime Substances 0.000 claims abstract description 7
- 238000003971 tillage Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 117
- 239000002344 surface layer Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 235000015097 nutrients Nutrition 0.000 abstract description 2
- 230000008635 plant growth Effects 0.000 abstract description 2
- 239000012766 organic filler Substances 0.000 abstract 2
- 238000004062 sedimentation Methods 0.000 description 3
- 238000003306 harvesting Methods 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a structure layer for treating filled soil, which is used for filling gully zones of loess plateau, and comprises a cultivated soil layer, an active cementing material compacting layer and a backfill soil compacting layer, wherein the cultivated soil layer is positioned at the uppermost layer, and the backfill soil compacting layer is formed by backfilling and compacting construction waste with the bottom surface of the gully; the active cementing material compacting layer is positioned in the middle and is formed by compacting cement soil or lime soil; the compaction coefficient of the active cementing material compaction layer and the backfill soil compaction layer is 0.93-0.95. According to the utility model, the construction waste is used for filling and compacting the landfill gully zone, and the loess plateau geology is softer, so that the strength of the landfill foundation is improved by the fact that each backfill layer comprises a layer of cement soil or ash soil compacting layer, and the organic filler of the cultivated soil layer provides a certain nutrient for the structure layer after landfill treatment, so that the surface layer of the organic filler is beneficial to plant growth.
Description
Technical Field
The utility model belongs to the technical field of loess plateau gully landfill treatment, and particularly relates to a structural layer for treating filled soil, which is mainly used for the gully land filling treatment of loess plateau so as to increase the cultivated land area of the loess plateau and reduce the subsidence of backfilled cultivated land.
Background
Because of the population of China, the average occupied land area of each person is approximately equal to 1/3 of the world average land area. Therefore, "people are more and less" is the basic national condition of our country. The cultivated land is less, the spare land resources which can be reclaimed are not more, the development of industry, traffic and towns occupies a part of cultivated land, the use is unreasonable, the phenomenon of occupying the cultivated land in disorder is serious, and the cultivated land area is gradually reduced, so that on one hand, the cultivated land must be practically protected, the technological production level of the cultivated land is improved, the high-yield field is changed from the low-yield field to the high-yield field, and the high-yield field is higher in yield; on the other hand, the barren lands are properly reclaimed, the utilization rate of land resources is improved, and the total amount of cultivated lands is stabilized.
At present, in loess plateau areas, thousand gullies are broken by supporting, and more people are needed, so that the gullies are backfilled with construction waste to develop cultivated land, the gullies are formed into a new planting layer after landfill treatment, the cultivation requirements can be met, the cultivated land area of the loess plateau areas is increased, a part of construction waste is effectively treated, and secondary pollution is reduced.
Disclosure of Invention
In order to solve the above technical problems, an object of the present utility model is to provide a structure layer for treating filled earth, which forms a planting layer by backfilling a gully region with backfilled earth.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a handle structural layer of filling out for the gully zone of loess plateau, its characterized in that: the soil tillage and soil backfilling device comprises a soil tillage layer, an active cementing material compaction layer and a backfill soil compaction layer, wherein the soil tillage layer is positioned at the uppermost layer, and the backfill soil compaction layer is formed by backfilling and compacting construction waste or soil with the bottom surface of a gully; the active cementing material compacting layer is positioned in the middle and is formed by compacting cement soil or lime soil; the compaction coefficient of the active cementing material compaction layer and the backfill soil compaction layer is 0.93-0.95.
Further, the cultivated soil layer is formed by backfilling loose loess.
Further, the backfill soil compacting layer comprises a plurality of layers, the layers of the backfill soil compacting layer are overlapped and compacted, and the compaction thickness of each layer of the backfill soil compacting layer is 100 cm+/-10 cm.
Further, the thickness of the cultivated soil layer is 50cm-100cm.
Further, the thickness of the compacted layer of active cementitious material is 50cm + -2 cm.
And if the filling of the gully is completed, drilling, layering, tamping and compacting are adopted, and different materials are backfilled according to the depth of the structural layer to form the structural layer.
Due to the adoption of the technical scheme, the utility model has the following advantages and effects:
(1) The structural layer for treating the filled soil is used for filling and compacting the landfill gully zone by backfilling construction waste or soil. Because the loess plateau gully region is loose in filling, the compaction coefficient of the backfill layer after treatment is required to be 0.93-0.95 in order to prevent the ground from excessively sinking in the later period; the structural layer is divided into three layers from top to bottom: the first layer is a cultivated soil layer with the thickness of 50cm-100cm, the second layer is an active cementing material compacting layer with the thickness of about 50cm, and the third layer is a backfill soil compacting layer; the cultivated soil layer is loess, which provides a certain nutrient for crops, so that the surface layer of the structural layer is beneficial to the growth of plants.
(2) According to the structural layer for treating the filled soil, provided by the utility model, the purpose of treating the soil with the soil is achieved through the structural layers of different materials, the sedimentation deformation of gully filled soil is obviously reduced, and the requirements of irrigation and harvesting of cultivated lands are ensured; meanwhile, the building rubbish can be consumed, secondary pollution of the building rubbish is prevented, the environment is protected, and the construction cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure, 1-plowing a soil layer; 2-compacting the layer of active cementitious material; 3-backfill compacting layer.
Detailed Description
The following detailed description of the embodiments of the present utility model will be provided with reference to the accompanying drawings in order to more clearly understand the objects, features and advantages of the present utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the utility model, but rather are merely illustrative of the true spirit of the utility model.
The utility model provides a structural layer for treating filled soil, which is used for filling compacted and buried gully zones for cultivation by backfilling construction waste or soil. The structural layer is divided into three layers from top to bottom: the first layer is a cultivated soil layer with the thickness of 50cm-100cm, the second layer is an active cementing material compacting layer with the thickness of 50cm, and the third layer is a backfill soil compacting layer; the compaction factor of the second and third layers is between 0.93 and 0.95. According to the utility model, through the structural layers of different materials, the purpose of controlling soil by soil is achieved, the sedimentation deformation of gully filled soil is obviously reduced, and the requirements of irrigation and harvesting of cultivated lands are ensured; meanwhile, the building rubbish can be consumed, secondary pollution of the building rubbish is prevented, the environment is protected, and the construction cost is reduced.
As shown in fig. 1. The utility model relates to a structural layer for treating filled soil, which sequentially comprises a cultivated soil layer 1, an active cementing material compacting layer 2 and a backfill soil compacting layer 3 from top to bottom. The structure layer formed by the cultivated soil layer 1, the active cementing material compaction layer 2 and the backfill soil compaction layer 3 is buried in ravines.
The cultivated soil layer 1 is positioned at the uppermost layer and is formed by backfilling loose loess, the cultivated soil layer 1 can be used for planting crops, can form fertile organic soil, provides a proper growth environment for the crops, and can also keep air and moisture in the soil. The thickness of the cultivated soil layer 1 is at least 50cm-100cm.
The active cementing material compacting layer 2 and the backfilled soil compacting layer 3 are positioned at the lower part of the cultivated soil layer 1. The method is mainly used for filling up the surface of the ravines, and compaction or ramming treatment is adopted to prevent the farmland from sedimentation deformation after the treatment. The lowest layer adopts construction waste backfill compaction to form a backfill soil compaction layer 3, the upper layer is used as a cement soil or ash soil compaction layer, and the cement soil or ash soil compaction layer forms an active cementing material compaction layer 2. The compaction coefficient of the active cementing material compacted layer 2 and the backfill soil compacted layer 3 is 0.93-0.95, the thickness of the active cementing material compacted layer 2 is 50cm plus or minus 2cm, and the rest is the backfill soil compacted layer 3.
Preferably, when the active cement compacting layer 2 is a soil compacting layer, the soil compacting coefficient is 0.95 or more. The lime soil system is formed by mixing and ramming a certain amount of lime and soil, the volume ratio of the lime soil to the soil can be 2:8 and 1:9, and the soil material adopts the existing cohesive soil. Lime is made of slaked lime powder and is uniformly mixed.
Preferably, when the active cement compacting layer 2 is a soil cement compacting layer, the soil cement compaction coefficient is not less than 0.95. The cement soil system is formed by mixing and tamping a certain amount of cement and soil, and the content of the cement soil is 5-10%. The soil material adopts the existing cohesive soil, and the compaction coefficient after compaction is 0.93-0.95.
The backfill soil compacting layer 3 is preferably subjected to landfill compacting treatment by adopting construction waste. The backfill soil compacting layer 3 is subjected to landfill compacting treatment according to the gully depth, and the backfill soil compacting layer 3 can comprise a plurality of layers, wherein the thickness of each layer after compacting is kept to be 1 meter thick, and preferably 900-1100 mm. According to different gully depths, the second layer and the third layer can be pressed layer by layer after the first layer is pressed to form a multi-layer laminated structure.
As a preference, for example, gully backfilling is completed, drilling, layering, tamping and compaction treatment can be adopted, and different materials can be backfilled again according to the depth of the structural layer.
The utility model relates to a structure layer for treating filled soil, which is characterized in that during concrete construction, a gully region of a loess plateau is selected, plants such as trees on the surface layer of the gully region are cleaned, then a backfill soil compacting layer 3 is paved, and the backfill soil compacting layer 3 is compacted in a layer-by-layer compacting paving mode, so that the compacting coefficient is ensured to be 0.93-0.95 during compacting. When reaching the pre-buried height, the upper layer is respectively paved with an active cementing material compacting layer 2 and a cultivated soil layer 1.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (6)
1. A handle structural layer of filling out for the gully zone of loess plateau, its characterized in that: the soil tillage and soil backfilling device comprises a soil tillage layer (1), an active cementing material compaction layer (2) and a backfill soil compaction layer (3), wherein the soil tillage layer (1) is positioned at the uppermost layer, and the backfill soil compaction layer (3) is arranged at the bottom surface of a gully and is formed by backfilling and compacting construction waste or soil; the active cementing material compacting layer (2) is positioned in the middle and is formed by compacting cement soil or lime soil; the compaction coefficient of the active cementing material compaction layer (2) and the backfill soil compaction layer (3) is 0.93-0.95.
2. A structural layer for treating fill according to claim 1, wherein: the cultivated soil layer (1) is formed by backfilling loose loess.
3. A structural layer for treating fill according to claim 1, wherein: the backfill soil compacting layers (3) comprise a plurality of layers, the backfill soil compacting layers (3) are stacked and compacted layer by layer, and the compaction thickness of each backfill soil compacting layer (3) is 100 cm+/-10 cm.
4. A structural layer for treating filled earth according to claim 1 or 2, characterized in that: the thickness of the cultivated soil layer (1) is 50cm-100cm.
5. A structural layer for treating fill according to claim 1, wherein: the thickness of the active cementing material compacting layer (2) is 50 cm+/-2 cm.
6. A structural layer for treating fill according to claim 1, wherein: and if the filling of the ravines is completed, drilling, layering, tamping and compacting treatment is adopted, and different materials are backfilled according to the depth of the structural layer to form the structural layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322010408.4U CN220580013U (en) | 2023-07-28 | 2023-07-28 | Structure layer for treating filled soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322010408.4U CN220580013U (en) | 2023-07-28 | 2023-07-28 | Structure layer for treating filled soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220580013U true CN220580013U (en) | 2024-03-12 |
Family
ID=90122114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322010408.4U Active CN220580013U (en) | 2023-07-28 | 2023-07-28 | Structure layer for treating filled soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220580013U (en) |
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2023
- 2023-07-28 CN CN202322010408.4U patent/CN220580013U/en active Active
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