Soil improvement construction method

Abstract

The invention relates to a soil improvement construction method which is used for improving various physical and chemical levels of original soil in an improved area through the combined action of plant waste and building residue soil as raw materials so as to meet actual planting requirements, and meanwhile, environmental pollution is avoided. The soil probability construction method comprises the following steps: S1, excavating original soil in an improved area and preparing raw materials; s2, base layer improved soil manufacturing and backfilling; s3, checking and accepting base layer improved soil; s4, manufacturing and backfilling surface layer improved soil; s5, checking and accepting surface layer improved soil; s6, planting the plants; s7, later maintenance; all physical and chemical levels in site original soil are improved under the combined action of full fermentation of the plant waste and the building muck, so that the physical and chemical indexes of base soil and surface soil required by actual planting are achieved, the actual planting requirements of plants are met, meanwhile, soil improvement is achieved in the mode, industrial organic fertilizer does not need to participate, and the cost is low. Not only is the construction cost of soil improvement reduced, but also the pollution risk is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil improvement, in particular to a soil improvement construction method. BACKGROUND

[0002] In recent years, with the progress of science and technology, various chemical soil improvers and biological improvement methods have been continuously researched and used, providing strong support for the improvement of urban garden planting soil, and realizing the fine management of garden plants, which is an inevitable direction of the development of urban garden landscape.

[0003] Soil improvement is a necessary construction step in the process of garden greening construction. The common soil improvement methods at present are direct fertilization and soil replacement. No matter which construction method is used, industrial organic fertilizer is needed. In addition to the problem of high improvement cost, there is also the risk of environmental pollution.

[0004] Therefore, how to improve the quality of garden planting soil scientifically and effectively under the premise of not increasing resource and environmental burden and effectively controlling the increase of construction cost is an important task to improve the quality of urban garden construction and ecological environment. SUMMARY

[0005] The purpose of the present application is to overcome the defects of the prior art and provide a soil improvement construction method to solve the problems of high cost and environmental pollution hidden dangers in the conventional soil improvement method of the prior art.

[0006] To achieve the above purpose, the present application provides a soil improvement construction method for improving the physical and chemical levels of the original soil in the improvement area by the joint action of plant waste and construction waste as raw materials to meet the actual planting requirements, while avoiding environmental pollution. The soil improvement construction method comprises the following steps:

[0007] S1, original soil excavation and raw material preparation in the improvement area;

[0008] S2, base improved soil making and backfilling;

[0009] S3, base improved soil acceptance;

[0010] S4, surface improved soil making and backfilling;

[0011] S5, surface improved soil acceptance;

[0012] S6, plant planting;

[0013] S7, post-maintenance.

[0014] By adopting the technical scheme, the full fermentation of plant waste and the joint action of construction waste are utilized to improve various physical and chemical levels in the original soil of the site, so that the physical and chemical indexes of the base soil and the surface soil meeting the actual planting requirements are achieved, the actual planting needs of plants are met, and the soil improvement achieved by the method does not need the participation of industrial organic fertilizer, which reduces the construction cost of soil improvement and reduces the pollution risk.

[0015] Further, the raw material preparation in step S1 includes plant waste treatment and construction waste treatment; wherein,

[0016] The plant waste treatment is to ferment the crushed plant waste, regularly turn over to the inside temperature of the pile, and after the temperature falls back to stable, detect the finished product by batch, and after all indexes meet the standard requirements, bag and seal for standby;

[0017] The construction waste treatment is to refine, crush and dry the construction waste for standby.

[0018] By adopting the technical scheme, the plant waste after fermentation has an organic substrate for greening, so that industrial fertilizer can be replaced to combine with dry construction waste for continuous soil improvement during plant planting, and the use of industrial fertilizer is avoided; the dry construction waste is stable in shape, which can ensure that the soil has a long-term good drainage and ventilation effect.

[0019] Further, the base improvement soil making in step S2 includes quantitatively stacking and fully mixing the construction waste and the plant waste at a volume ratio of 6:1;

[0020] The backfilling includes layering the base improvement soil after fully mixing to backfill to the bottom of the pit formed by excavating the original soil of the improvement area.

[0021] By adopting the technical scheme, the construction waste and the plant waste are mixed at a volume ratio of 6:1, which can not only provide the required organic substrate content of the soil, but also save the plant waste and further reduce the cost; the backfilling is performed in a layered manner, which can not only be evenly laid, but also ensure uniform mixing of the backfilling soil.

[0022] Further, step S3 includes that a design unit is responsible for on-site construction guidance during the base improvement soil making and backfilling, and the base improvement soil is accepted according to the concealed engineering acceptance specification and the improvement scheme requirements; if it is unqualified, it is reworked and rectified until the base improvement soil meets the improvement scheme requirements.

[0023] By adopting the technical scheme, the actual construction is ensured to meet the design requirements to meet the actual use needs and increase the construction reliability.

[0024] Further, the surface improvement soil making in step S4 includes quantitatively stacking and fully mixing the original soil and the plant waste at a volume ratio of 6:1.

[0025] The backfilling includes layering the well-mixed surface layer modified soil on top of the base layer modified soil until the surface layer modified soil is level with the surrounding original ground surface.

[0026] By adopting the technical scheme, the original soil and the plant waste are mixed in a volume ratio of 6:1, which can not only provide the required organic matrix content of the soil, but also realize reuse of the original soil and save the plant waste, thereby further reducing the cost.

[0027] Further, the step S5 includes that, during the manufacturing and backfilling of the surface layer modified soil, a design unit is responsible for on-site construction guidance, and the surface layer modified soil is accepted according to the concealed engineering acceptance specification and the requirements of the modification scheme.

[0028] By adopting the technical scheme, the actual construction is ensured to correspond to the design requirements, so as to meet the actual use requirements and increase the construction reliability.

[0029] Further, the step S6 includes that the surface layer modified soil after the backfilling is finely leveled to remove the large impurities mixed in.

[0030] Further, the step S6 includes that the surface layer modified soil after the backfilling is finely leveled to remove the large impurities mixed in.

[0031] By adopting the technical scheme, the fine leveling can reduce the influence of the large impurities on the subsequent planting, and the compaction of the backfilling soil and the original soil can ensure the tightness of the soil.

[0032] Further, the step S7 includes that the maintenance is performed according to the conventional water and fertilizer management, and the soil physical and chemical properties and the plant root system are periodically sampled and detected.

[0033] By adopting the technical scheme, the soil and the plant after the soil modification are obtained in real time, which can be treated when the growth problem occurs, and provides a basis for subsequent soil modification.

[0034] Compared with the prior art, the present application has the following beneficial effects:

[0035] 1. The plant waste is fully fermented and the construction waste soil is used together to improve the physical and chemical levels in the original soil of the site, so as to achieve the physical and chemical indexes of the base soil and the surface soil required for actual planting, and meet the actual planting requirements of the plant.

[0036] 2. The raw materials used for soil improvement, such as plant waste and dried construction waste, are easy to obtain and process, which reduces the difficulty of obtaining materials for soil improvement.

[0037] 3. Plant waste itself can ferment continuously for a long time to provide trace elements to the soil. Combined with the stable shape of dried construction waste, it provides trace elements and a well-drained and breathable planting environment for plants. It is suitable for the growth environment of a variety of plants and has wide applicability. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the soil improvement construction method in this invention;

[0039] Figure 2 This is a comparison table of the physicochemical properties of the improved materials in the embodiments of the present invention;

[0040] Figure 3 This is a table showing the shape and physicochemical properties of unimprovable soil in the embodiments of the present invention;

[0041] Figure 4 This is a table showing the initial soil structure of the base layer in this embodiment of the invention.

[0042] Figure 5 This is a table showing the physical and chemical properties of the base soil during the initial stage of the experiment in this embodiment of the invention;

[0043] Figure 6 This is a table showing the surface soil structure during the initial stage of the experiment in this embodiment of the invention;

[0044] Figure 7 This is a table showing the physicochemical properties of the surface soil in the initial stage of the experiment in this embodiment of the invention;

[0045] Figure 8 This is a table showing the correspondence between planting soil particle size and planting depth in embodiments of the present invention. Detailed Implementation

[0046] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0047] Please see the appendix Figure 1 This invention provides a soil improvement construction method, which uses plant waste and construction debris as raw materials to improve the physical and chemical properties of the original soil in the improvement area to meet actual planting requirements, while avoiding environmental pollution. The soil improvement construction method includes the following steps: S1, excavation of the original soil in the improvement area and preparation of raw materials; S2, preparation and backfilling of the base layer improved soil; S3, acceptance of the base layer improved soil; S4, preparation and backfilling of the topsoil improved soil; S5, acceptance of the topsoil improved soil; S6, planting of plants; S7, post-planting maintenance.

[0048] The full fermentation of plant waste and the joint action of construction waste improve the physical and chemical levels of the original soil in the site, so as to achieve the physical and chemical indexes of the base soil and surface soil required for actual planting, meet the actual planting needs of plants, and at the same time, the soil improvement achieved by this method does not need the participation of industrial organic fertilizer, which reduces the construction cost of soil improvement and reduces the pollution risk, as shown in the physical and chemical property comparison table of the improved material shown in the accompanying Figure 2 The physical and chemical property comparison table of the improved material shown in the accompanying

[0049] The original soil excavation in the improvement area in step S1 includes site clearing, lofting, excavation according to the required thickness of the soil, and acceptance, specifically including clamping according to the depth and range required by the soil improvement scheme, and the original soil excavated is returned to the house nearby, and drainage construction is completed according to the requirements of the drainage scheme of the improvement area;

[0050] Further, the preparation of the original material in step S1 includes plant waste treatment and construction waste treatment; wherein the plant waste treatment is to stack and ferment the crushed plant waste, and periodically turn over when the internal temperature of the stack falls back to stable, detect the finished product by batch, and after each index meets the standard requirements, bag and seal for standby, the plant waste after fermentation has an organic medium for greening, so as to replace industrial fertilizer to combine with dry construction waste for continuous soil improvement during plant planting, and avoid the use of industrial fertilizer; the construction waste treatment is to refine, crush and dry the construction waste for standby, the dry construction waste has stable shape, which can ensure that the soil has long-term good drainage and ventilation effect;

[0051] Further, the plant waste treatment specifically stacks and ferments the crushed plant waste, and at the same time, the internal temperature change of the stack is observed and turned over regularly, after 30-40 days, the internal temperature of the stack basically falls back to stable, the finished product is detected by batch, and after each index meets the standard requirements of LY / T1970-2011 "Organic Medium for Greening", it is bagged and sealed for standby.

[0052] The base improvement soil making in step S2 includes quantitatively stacking and fully mixing the construction waste and plant waste according to the volume ratio of 6:1, which can not only provide the required organic medium content of the soil, but also save plant waste and further reduce the cost; backfilling includes layering backfilling the fully mixed base improvement soil to the bottom of the pit formed by the original soil excavation in the improvement area, and the layering backfilling can not only lay evenly, but also ensure the uniform mixing of the backfilling soil.

[0053] Further, the improved substrate can be purchased and made according to the requirements of the soil improvement scheme, and the improved substrate is backfilled on the base improved soil according to the ratio and process requirements; the thickness of each layer of the base improved soil is not more than 30 cm, and the improved substrate is not less than 5 cm, and after the paving is completed, the base improved soil and the improved substrate are fully mixed by using a machine.

[0054] Step S3 includes that the design unit is responsible for on-site construction guidance during the process of making and backfilling the base improved soil, and the base improved soil is accepted according to the concealed engineering acceptance specification and the requirements of the improvement scheme; if it is unqualified, it is reworked and rectified until the base improved soil meets the requirements of the improvement scheme, so as to ensure that the actual construction corresponds to the design requirements, to meet the actual use requirements, and to increase the construction reliability; mainly, the use of silt, silt soil, swelling soil, heavy clay, construction waste and contaminated soil is prohibited, and if it is unqualified, it must be reworked and rectified, and the corresponding please refer to the attached Figure 3 the shape and physical and chemical index table of the unimproved soil;

[0055] Further, during the acceptance process, the detection unit is notified to witness sampling on site, the samples are sealed and sent to a laboratory meeting the qualification management requirements for detection, and a detection report is issued; the detection report needs to be completed before the project completion acceptance and is compiled into the completion data; specifically, the detection report includes the initial test of the base soil structure and physical and chemical properties, as shown in the attached Figure 4 and the attached Figure 5 respectively.

[0056] The surface improved soil making in step S4 includes that the original soil and plant waste are quantitatively stacked and fully mixed according to a volume ratio of 6:1; the volume ratio of 6:1 of the original soil and plant waste can not only provide the required organic substrate content of the soil, but also realize the reuse of the original soil and save the plant waste, thereby further reducing the cost; the backfilling includes that the fully mixed surface improved soil is backfilled on the base improved soil in layers until it is leveled with the surrounding original ground surface; the backfilling is performed in layers, which can not only be uniformly paved, but also ensure the uniform mixing of the backfilled soil.

[0057] Further, the improved substrate can be purchased and made according to the requirements of the soil improvement scheme, and the improved substrate is backfilled on the base improved soil according to the ratio and process requirements; the thickness of each layer of the base improved soil is not more than 30 cm, and the improved substrate is not less than 5 cm, and after the paving is completed, the base improved soil and the improved substrate are fully mixed by using a machine.

[0058] Step S5 includes that the design unit is responsible for on-site construction guidance during the process of making and backfilling the surface improved soil, and the surface improved soil is accepted according to the concealed engineering acceptance specification and the requirements of the improvement scheme; if it is unqualified, it is reworked and rectified until the surface improved soil meets the requirements of the improvement scheme, so as to ensure that the actual construction corresponds to the design requirements, to meet the actual use requirements, and to increase the construction reliability; mainly, the use of silt, silt soil, swelling soil, heavy clay, construction waste and contaminated soil is prohibited, and if it is unqualified, it must be reworked and rectified, and the corresponding please refer to the attached Figure 3For non-improvable soil shape and physical and chemical index table;

[0059] Further, also includes in the acceptance process to inform the detection unit on-site witness sampling, sampling after the sample seal sent to the laboratory in line with the requirements of the qualification management for detection, and detection report, detection report need to complete before the project completion acceptance and into the completion of the data, specifically, the detection report includes the test initial surface soil structure and physical and chemical properties, such as attached Figure 6 And attached Figure 7 As shown.

[0060] Step S6 includes the fine flatness of the backfill surface improved soil, remove the mixed large impurities; also includes the improved area surrounding and the backfill soil, the original soil compaction, re-paved planting soil, finally the plant planting;

[0061] Further, the planting soil particle size should meet the corresponding requirement table shown in attached Figure 8

[0062] Step S7 includes the routine water and fertilizer management for maintenance, and periodically test soil physical and chemical properties and plant root system, real-time acquisition of soil and plant soil after soil improvement, one can be in the presence of plant growth problems when the timely treatment, the second for subsequent planting soil improvement provides the basis.

[0063] The above embodiments of the present application are described in detail in conjunction with the drawings, those of ordinary skill in the art can make various changes to the present application according to the above description. Thus, some details in the embodiments should not constitute a limitation on the present application, the present application will be defined in the scope of the appended claims as the protection scope of the present application.​

Claims

1. A soil improvement construction method, used to improve the various physical and chemical levels of the original soil in the improvement area through the combined action of plant waste and construction debris as raw materials to meet actual planting requirements, while avoiding environmental pollution; characterized in that, The soil probabilistic construction method includes the following steps: S1. Excavation of original soil and preparation of raw materials in the improved area; S2. Preparation and backfilling of improved soil for the base layer; S3. Acceptance of improved base soil; S4. Preparation and backfilling of surface improved soil; S5. Acceptance of surface improved soil; S6. Plant cultivation; S7. Post-construction maintenance.

2. The soil improvement construction method according to claim 1, characterized in that: The raw material preparation in step S1 includes the treatment of plant waste and construction waste; among which, Plant waste treatment involves piling up crushed plant waste for fermentation, turning it over periodically until the internal temperature of the pile stabilizes, testing the finished products in batches, and bagging and sealing them for later use once all indicators meet the standard requirements. Construction waste treatment involves refining, crushing, and drying construction waste for later use.

3. The soil improvement construction method according to claim 2, characterized in that: The preparation of the base soil improvement in step S2 includes mixing construction waste and plant waste in a volume ratio of 6:

1. Backfilling involves layering the fully mixed improved base soil to the bottom of the pit formed by excavating the original soil in the improved area.

4. The soil improvement construction method according to claim 1, characterized in that: Step S3 includes the design unit being responsible for on-site construction guidance during the preparation and backfilling of the base soil, and inspecting the base soil according to the concealed works acceptance specifications and the requirements of the improvement plan. If there are any defects, rework and rectification shall be carried out until the base soil meets the requirements of the improvement plan.

5. The soil improvement construction method according to claim 2, characterized in that: The preparation of the topsoil improvement in step S4 includes mixing the original soil and plant waste in a volume ratio of 6:

1. Backfilling involves layering the fully mixed topsoil improvement soil onto the base soil improvement soil until it is level with the surrounding original soil surface.

6. The soil improvement construction method according to claim 1, characterized in that: Step S5 includes the design unit being responsible for on-site construction guidance during the preparation and backfilling of the surface improved soil. The surface improved soil is inspected according to the concealed works acceptance specifications and the requirements of the improvement plan. If it is not up to standard, it is reworked and rectified until the surface improved soil meets the requirements of the improvement plan.

7. The soil improvement construction method according to claim 1, characterized in that: Step S6 includes finely leveling the backfilled topsoil and removing large impurities. It also includes compacting the backfill soil and original soil around and below the improved area, then covering it with planting soil, and finally planting plants.

8. The soil improvement construction method according to claim 1, characterized in that: Step S7 includes maintenance according to routine water and fertilizer management, and periodic random checks on soil physicochemical properties and plant root conditions.

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