A method for optimizing soil particle strength applied to a slope based on moisture control

Abstract

The application discloses a soil particle strength optimization method applied to a slope based on moisture control, and belongs to the technical field of soil improvement, and comprises the following steps: S1, confirming a generation index of soil particles and selecting appropriate soil raw materials, detecting relevant parameters of the soil raw materials and pretreating the raw materials; S2, preparing a particle generation composite modifier, and then mixing the particle generation composite modifier with the pretreated raw materials; S3, precisely regulating the generation of the soil particles through moisture control; and S4, experimentally testing the generated soil particles; by the method, the soil raw materials are induced to form soil particles for slope protection which are stable, high in strength and resistant to erosion through the combination of the composite modifier and the moisture precise regulation, and the optimization of the particle strength, the anti-washing capacity and the adaptability of the green plants to water supply is realized.

Description

Technical Field

[0001] This invention relates to the field of soil improvement technology, and in particular to a method for optimizing soil particle strength based on moisture control applied to slopes. Background Technology

[0002] Soil particles are the basic units of soil structure. Their formation quality, strength, and stability directly determine the soil's resistance to erosion, water retention and fertilization capacity, and engineering adaptability. Especially in areas with high rainfall, natural soil particles are easily washed away and dispersed by rainwater. However, existing soil particle generation technologies in slope protection mostly adopt single cementation or physical agglomeration methods, lacking precise intervention in moisture content and moisture form. The generated particles have problems such as insufficient strength, poor toughness, and weak stability. The generated particles are easily washed away and dispersed by rainwater, and cannot achieve long-term retention. Summary of the Invention

[0003] The purpose of this invention is to provide a method for optimizing soil particle strength based on moisture control applied to slopes. By precisely controlling moisture and combining it with a composite modifier, and through testing, the method induces soil raw materials to form stable, high-strength, and erosion-resistant soil particles for slope protection, thereby optimizing particle strength, erosion resistance, and compatibility with vegetation water supply.

[0004] To achieve the above objectives, this invention provides a method for optimizing soil particle strength based on moisture control applied to slopes, comprising the following steps: S1. Confirm the soil particle formation index and select suitable soil raw materials, test the relevant parameters of the soil raw materials and pre-treat the raw materials; S2. Prepare a particle-forming composite modifier, and then mix the particle-forming composite modifier with the pretreated raw materials; S3. Precisely regulate soil particle formation through moisture control; S4. Conduct experimental testing on the generated soil particles.

[0005] Preferably, the process of S1 is as follows: S11. Determine the soil particle generation indicators based on the application scenario of slope protection, including generation targets, strength targets, soil erosion resistance targets, and vegetation water supply targets, and set the soil particle moisture content error fluctuation range. S12. Collect soil samples and divide the soil samples into test materials and experimental materials; S13. Test the basic parameters of the soil using indoor experiments on the test materials; S14. Determine the water regulation range, modifier type and dosage, particle formation parameters and soil erosion control structural parameters by combining soil particle formation indicators and basic parameters. S15. Pre-treat the experimental raw materials, including loosening, leveling, and removing impurities, while crushing the raw materials with larger particle sizes. S16. Adapt the parameters in S14 to the type of soil raw material.

[0006] Preferably, the generation targets in S11 include particle size range, particle agglomeration rate, and particle forming rate; The strength targets include the target shear strength, target cohesion, and target internal friction angle of the generated particles; The goals for combating soil erosion include increasing the proportion of particles with higher erosion resistance coefficient and controlling the particle loss rate. The objectives for green plant water supply include the effective moisture content range of generated particles and the duration of water supply.

[0007] Preferably, the process of obtaining the basic parameters in S13 is as follows: S131. Remove impurities from the test material and crush it; S132. Divide the raw materials processed in S131 into an air-dried sample group and a moisture test sample group. S133. The particle size distribution, initial moisture content, liquid limit, plastic limit, maximum dry density, optimum moisture content, initial shear strength, porosity, permeability coefficient, proportion of free water, weakly bound water and strongly bound water in the raw material, water retention capacity, erosion resistance coefficient and particle aggregation potential of the raw material were tested by air-dried sample group and moisture test sample group respectively.

[0008] Preferably, the composite modifier in S2 includes a temperature-sensitive water-retaining matrix, a biomimetic mineralized particle generating component, a bio-cementing strengthening component, a hydrophobic modifying component, a filling component, an anti-loss enhancing component, and a green plant water supply adaptation component.

[0009] Preferably, the process of S3 is as follows: S31. Based on the optimal moisture content in the basic parameters, adjust the moisture content of the experimental raw materials to the optimal moisture content using moisture control methods, so that it is within the range of moisture content error fluctuation. S32. A composite modifier is added to the soil raw material in the experiment. Then, high-frequency low-amplitude vibration is used to promote the rearrangement and close contact of the soil raw material particles, reduce the proportion of large pores, and at the same time promote the full combination of the modifier with the surface of the raw material particles, enhance the adsorption capacity of strongly bound water, and obtain the initial soil particles. S33. Add biomimetic mineralization particle generating components and bio-cementing strengthening components to the initial soil particles to generate stable soil particles through the synergistic effect of biomimetic mineralization and bio-cementation.

[0010] Preferably, the biomimetic mineralization particle generating component in S33 is a mixture of cementing solution A, cementing solution B, and a crystal form regulator, wherein cementing solution A is... Solution, cementing liquid B is ; The bio-bonding strengthening component consists of urease bacteria solution and straw fiber.

[0011] Preferably, the process of S4 is as follows: S41. Build an intelligent monitoring platform that integrates humidity sensors, intensity sensors, permeability sensors, and rainfall sensors; S42. The soil particles obtained in S3 are laid on the test slope, and the soil from which the soil particles are generated is compacted using a layered compaction method. S43. Lay a biodegradable moisture-retaining film on the surface of soil particles to maintain the experimental slope. S44. After maintenance is completed, plant greenery on the experimental slope. S45. Monitor the condition of the experimental slope in real time through the intelligent monitoring platform to obtain the state index of soil particles. Determine whether the generated soil particles are qualified based on the state index. If they are not qualified, return to S3.

[0012] Preferably, the soil particle state indicators mentioned in S4 include particle size, particle aggregation rate, particle formation rate, shear strength, cohesion, internal friction angle, moisture content stability, erosion resistance coefficient, soil particle loss rate, vegetation survival rate, and duration of effective soil moisture content.

[0013] Therefore, this invention adopts a soil particle strength optimization method based on moisture control applied to slopes using the above-mentioned structure. By overcoming the limitations of single particle generation or single strength optimization in existing slope protection technologies through self-reflection on moisture control and particle generation composite modifiers, it specifically addresses the core pain points of low soil particle generation efficiency, poor stability, easy erosion, and poor adaptability to greening water supply in areas with high rainfall. It achieves simultaneous satisfaction of soil particle generation, strength improvement, erosion resistance and ecological greening needs, and is suitable for diversified scenarios in areas with high rainfall.

[0014] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is an overall flowchart of a soil particle strength optimization method based on moisture control applied to slopes according to the present invention. Figure 2 This is a flowchart illustrating the experimental verification of generated soil particles in a soil particle strength optimization method based on moisture control applied to slopes according to the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0020] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] Example 1 like Figure 1 and Figure 2 As shown, the present invention discloses a method for optimizing soil particle strength based on moisture control applied to slopes, comprising the following steps: S1. Confirm the soil particle formation index and select suitable soil raw materials, test the relevant parameters of the soil raw materials and pre-treat the raw materials; S11. Determine the soil particle generation indicators based on the application scenario of slope protection, including generation targets, strength targets, soil erosion resistance targets, and vegetation water supply targets, and set the soil particle moisture content error fluctuation range. The target parameters include particle size range, particle agglomeration rate, and particle formation rate. The strength targets include the target shear strength, target cohesion, and target internal friction angle of the generated particles; The goals for combating soil erosion include increasing the proportion of particles with higher erosion resistance coefficient and controlling the particle loss rate. The objectives for green plant water supply include the effective moisture content range of generated particles and the duration of water supply.

[0023] S12. Collect soil samples and divide the soil samples into test materials and experimental materials; S13. Test the basic parameters of the soil using indoor experiments on the test materials; S131. Remove impurities from the test material and crush it; S132. Divide the raw materials processed in S131 into an air-dried sample group and a moisture test sample group. S133. The particle size distribution, initial moisture content, liquid limit, plastic limit, maximum dry density, optimum moisture content, initial shear strength, porosity, permeability coefficient, proportion of free water, weakly bound water and strongly bound water in the raw material, water retention capacity, erosion resistance coefficient and particle aggregation potential of the raw material were tested by air-dried sample group and moisture test sample group respectively.

[0024] S14. Determine the water regulation range, modifier type and dosage, particle formation parameters and soil erosion control structural parameters by combining soil particle formation indicators and basic parameters. S15. Pre-treat the experimental raw materials, including loosening, leveling, and removing impurities, while crushing the raw materials with larger particle sizes. S16. Adapt the parameters in S14 to the type of soil raw material.

[0025] S2. Prepare the particle-forming composite modifier, and then mix the particle-forming composite modifier with the pretreated raw materials. The mixing process involves evenly spreading the particle-forming composite modifier at 3-8% of the dry weight of the soil raw materials on the surface of the pretreated soil raw materials, and using a mixing device to mix thoroughly, with a mixing uniformity of not less than 90%, to ensure that the modifier and soil raw material particles are in full contact, laying the foundation for subsequent particle formation and cementation strengthening. For slope areas, a layered mixing method is adopted, with the dosage of the surface layer modifier in the 0-10cm layer increased by 1-2%, to enhance the erosion resistance of the surface-generated particles and the compatibility with vegetation water supply.

[0026] The composite modifier includes a temperature-sensitive water-retaining matrix, a biomimetic mineralized particle generating component, a bio-cementing strengthening component, a hydrophobic modifying component, a filler component, an anti-leakage enhancing component, and a green plant water supply adaptation component.

[0027] The temperature-sensitive water-retaining matrix is ​​prepared by mixing nano-clay and citrus peel extract in a certain mass ratio. The pectin content in the citrus peel extract is not less than 55%. It is used to achieve temperature-sensitive controlled release of water and precipitation enrichment. It is suitable for the characteristics of diurnal temperature difference and uneven precipitation distribution in areas with more precipitation. It provides a stable moisture environment for particle generation and avoids particle disintegration caused by water accumulation after rain and particle cracking caused by water shortage during drought. The hydrophobic modifier is a mixture of sodium methylsilicate and polymer in a mass ratio of 2:1. It is used to form a hydrophobic film on the surface of the generated particles, reduce excessive water intrusion into the particles, reduce the surface water content of the particles, reduce particle dispersion and disintegration during rainwater scouring, and improve the water stability of the generated particles. The filler component is a mixture of nano-silica and fly ash in a mass ratio of 1:2. It is used to fill the gaps between soil raw material particles, optimize particle size distribution, promote particle agglomeration and formation, improve the density and impermeability of the generated particles, and prevent the generated particles from softening due to water accumulation in areas with heavy rainfall. The anti-erosion reinforcement component is composed of sodium carboxymethyl cellulose and basalt fiber in a mass ratio of 3:1. It is used to enhance the bonding force and integrity between generated particles, form an anti-erosion protective layer, inhibit rainwater from stripping and transporting the generated particles, and at the same time improve the stability of particle agglomerates to ensure the long-term retention of generated particles. The green plant water supply adapter consists of humic acid and slow-release fertilizer carrier in a mass ratio of 2:1. Humic acid is used to improve the water and fertilizer retention capacity of the generated granules, while the slow-release fertilizer carrier (zeolite powder) is used to adsorb rainwater and moisture inside the granules, so as to realize the slow release of water and provide continuous and stable water and nutrient supply for green plants, which is suitable for the water needs of green plants in areas with more rainfall.

[0028] S3. Precisely regulate soil particle formation through moisture control; S31. Based on the optimal moisture content in the basic parameters, the moisture content of the experimental raw materials is adjusted to the optimal moisture content through moisture control methods, so that it is within the range of moisture content error fluctuation. Moisture control includes two methods: precise watering and negative pressure drainage. S32. A composite modifier is added to the soil raw material in the experiment. Then, high-frequency low-amplitude vibration is used to promote the rearrangement and close contact of soil raw material particles, reduce the proportion of large pores, and at the same time promote the full combination of the modifier with the surface of raw material particles, enhance the adsorption capacity of strongly bound water, increase the proportion of strongly bound water to more than 35%, control the proportion of weakly bound water at 40-50%, and the proportion of free water to less than 15%, so as to provide stable water form support for particle aggregation and obtain the initial soil particles. S33. Add biomimetic mineralization particle generating components and bio-cementing strengthening components to the initial soil particles to generate stable soil particles through the synergistic effect of biomimetic mineralization and bio-cementation.

[0029] The biomimetic mineralization particle generating component is composed of a mixture of cementing solution A, cementing solution B, and a crystal form regulator, wherein cementing solution A is 0.5-2 mol / L. The solution, cementing solution B, is 0.5-2 mol / L. The crystal form regulator is polyacrylic acid or boric acid, which reacts with the binder in solution B. The molar concentration ratio is ; The bio-binding strengthening component consists of urease-infused bacterial solution and straw fiber, with the urease-infused bacterial solution concentration being [missing information]. Straw fibers are soaked in NaOH solution for 15 minutes, washed and dried, and then cut into 0.8-2cm pieces. These fibers are used to form a three-dimensional mesh anchoring structure during the particle generation process, which wraps the soil raw material particles, enhances the toughness and tear resistance of the generated particles, reduces particle disintegration and loss caused by rainwater erosion, and assists in particle agglomeration and formation.

[0030] S4. Conduct experimental testing on the generated soil particles.

[0031] S41. Establish an intelligent monitoring platform that integrates humidity sensors, strength sensors, permeability sensors, and rainfall sensors to monitor soil moisture content, shear strength, cohesion, infiltration rate, and rainfall in real time. The monitoring data is transmitted to the control terminal in real time. When the strength of the generated particles is found to be 10% lower than the target value, the composite modifier for particle generation is automatically replenished at 10-20% of the initial dosage, and the moisture control strategy is adjusted simultaneously to ensure that the strength of the generated particles meets the standard. When the rainfall is found to be greater than the threshold, the threshold is set according to the regional rainfall intensity, and the opening of the drainage channel is automatically increased, and the rainfall collection device is activated to prevent soil water accumulation that could cause the generated particles to disintegrate. When the effective moisture content of the generated particles is found to be lower than the water supply threshold for green plants, the drip irrigation system of the water storage module is automatically activated to supplement the water supply for the green plants. S42. The soil particles obtained in S3 are laid on the test slope, and the soil particles are compacted in layers. The thickness of each layer of the slope protection is 10-15cm. After compaction, a plate vibrator is used for secondary vibration for 5-10 minutes to further improve the contact density and internal friction angle of the generated particles, enhance the bonding force between particles, and ensure that the generated soil particles have the required strength and good stability. During the compaction process, the slope drainage channel is simultaneously repaired to ensure that rainwater can flow smoothly into the water storage module and avoid the surface water on the slope washing away the generated particles. S43. A biodegradable moisture-retaining film is laid on the surface of soil particles. The surface of the film has a slightly textured surface to collect rainwater, slow down the rate of rainwater erosion, and reduce water evaporation and excessive infiltration of external water, providing a stable moisture environment for the particle formation process. Simultaneously, ecological grass pavers are laid on the slope area. The grass pavers and the moisture-retaining film work together to reduce the damage to the generated particles caused by rainwater erosion on the slope and to provide a substrate for subsequent vegetation growth. The experimental slope is maintained for 14-21 days, during which the soil moisture content is kept stable at the optimum moisture content. Within the designated area, prevent damage to the generated particles from heavy rain and strong sunlight. In areas with high rainfall, strengthen the maintenance of drainage systems, regularly clean debris from blind ditches and drainage channels to ensure smooth drainage. At the same time, regularly replenish anti-erosion agents and plant water supply components to enhance the soil erosion resistance of the generated particles and the stability of plant water supply. Add temporary protective nets to slope areas until the aggregate structure of the generated particles is stable and the plants survive, preventing the generation of particles from being washed away by rainwater. S44. After maintenance, plant greenery on the experimental slope. Select water-resistant and well-developed root varieties such as Bermuda grass and Amorpha fruticosa, and plant them by hole sowing or hydroseeding. During the planting process, ensure that the roots of the green plants penetrate deep into the water-retaining layer of the granules, which is located 8-12cm below the ground surface, to make full use of the water reservoir in the granules. 1-2 weeks after planting, supplement water supply through an intelligent drip irrigation system to ensure the survival rate of the green plants. At the same time, the roots of the green plants can further entwine and generate granules, enhancing the integrity and water loss resistance of the granules. S45. The condition of the experimental slope is monitored in real time through an intelligent monitoring platform to obtain the state indicators of soil particles. These indicators include particle size, particle aggregation rate, particle formation rate, shear strength, cohesion, internal friction angle, moisture content stability, erosion resistance coefficient, soil particle loss rate, vegetation survival rate, and duration of effective soil moisture content. The quality of the generated soil particles is determined based on these state indicators. If the particles are not qualified, the process returns to S3.

[0032] The qualified standards for testing are as follows: particle size is between 0.5mm and 5mm, particle agglomeration rate is ≥85%, particle forming rate is ≥90%, shear strength is increased by more than 30%, cohesion is increased by more than 40%, internal friction angle is increased by more than 15%, moisture content fluctuation range is ≤±1.5%, erosion resistance coefficient is increased by more than 50%, soil particle loss rate is ≤5%, green plant survival rate is ≥90%, effective soil moisture content lasts for ≥7 days, and the generated soil particles have good permeability and no compaction, water accumulation, or disintegration.

[0033] Example 2 The above method was applied to slope protection scenarios with an annual precipitation of 1200-1300 mm. Sandy soil was selected as the soil raw material, and the process of generating soil particles according to the method provided in this invention is as follows: Step 1, Implementation Preparation: Select sandy soil raw materials from the highway slope in the karst area of ​​southern China, remove stones, weeds and other impurities, crush and pass through a 2mm sieve, and control the generation parameters according to the original plan for moisture control, modifier adaptation and particle generation process, with the goal of generating soil particles that meet specific indicators for slope protection.

[0034] Step 2, Particle Generation Process: The moisture content of the sandy soil is adjusted according to the optimum moisture content of 12%, and an appropriate amount of modifier is added to improve the particle bonding force. After mixing, agglomeration, molding and curing for 5 days, the soil particles for slope protection are generated. After molding, the particles have no hardening or disintegration, good permeability, and initially meet the appearance requirements of slope protection.

[0035] Step 3: Implementing Test Results: After generation, three groups of samples were randomly selected, each weighing 5 kg. Following the specifications for indoor testing in geotechnical engineering, professional equipment such as a laser particle size analyzer, direct shear tester, and permeameter were used for testing. All test results met the aforementioned specific qualification indicators. Specific test data for a single sample group are shown in the table below:

[0036] Therefore, this invention adopts a soil particle strength optimization method based on moisture control applied to slopes using the above-mentioned structure. By overcoming the limitations of single particle generation or single strength optimization in existing slope protection technologies through self-reflection on moisture control and particle generation composite modifiers, it specifically addresses the core pain points of low soil particle generation efficiency, poor stability, easy erosion, and poor adaptability to greening water supply in areas with high rainfall. It achieves simultaneous satisfaction of soil particle generation, strength improvement, erosion resistance and ecological greening needs, and is suitable for diversified scenarios in areas with high rainfall.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for optimizing soil particle strength based on moisture control applied to slopes, characterized in that, Includes the following steps: S1. Confirm the soil particle formation index and select suitable soil raw materials, test the relevant parameters of the soil raw materials and pre-treat the raw materials; S2. Prepare a particle-forming composite modifier, and then mix the particle-forming composite modifier with the pretreated raw materials; S3. Precisely regulate soil particle formation through moisture control; S4. Conduct experimental testing on the generated soil particles.

2. The method for optimizing soil particle strength based on moisture control applied to slopes according to claim 1, characterized in that, The process of S1 is as follows: S11. Determine the soil particle generation indicators based on the application scenario of slope protection, including generation targets, strength targets, soil erosion resistance targets, and vegetation water supply targets, and set the soil particle moisture content error fluctuation range. S12. Collect soil samples and divide the soil samples into test materials and experimental materials; S13. Test the basic parameters of the soil using indoor experiments on the test materials; S14. Determine the water regulation range, modifier type and dosage, particle formation parameters and soil erosion control structural parameters by combining soil particle formation indicators and basic parameters. S15. Pre-treat the experimental raw materials, including loosening, leveling, and removing impurities, while crushing the raw materials with larger particle sizes. S16. Adapt the parameters in S14 to the type of soil raw material.

3. The method for optimizing soil particle strength based on moisture control applied to slopes according to claim 2, characterized in that: The generation targets in S11 include particle size range, particle agglomeration rate, and particle formation rate; The strength targets include the target shear strength, target cohesion, and target internal friction angle of the generated particles; The goals for combating soil erosion include increasing the proportion of particles with higher erosion resistance coefficient and controlling the particle loss rate. The objectives for green plant water supply include the effective moisture content range of generated particles and the duration of water supply.

4. The method for optimizing soil particle strength in slopes based on moisture control according to claim 3, characterized in that, The process of obtaining the basic parameters in S13 is as follows: S131. Remove impurities from the test material and crush it; S132. Divide the raw materials processed in S131 into an air-dried sample group and a moisture test sample group. S133. The particle size distribution, initial moisture content, liquid limit, plastic limit, maximum dry density, optimum moisture content, initial shear strength, porosity, permeability coefficient, proportion of free water, weakly bound water and strongly bound water in the raw material, water retention capacity, erosion resistance coefficient and particle aggregation potential of the raw material were tested by air-dried sample group and moisture test sample group respectively.

5. The method for optimizing soil particle strength based on moisture control applied to slopes according to claim 4, characterized in that: The composite modifier in S2 includes a temperature-sensitive water-retaining matrix, a biomimetic mineralized particle generating component, a bio-cementing strengthening component, a hydrophobic modifying component, a filler component, an anti-loss enhancing component, and a green plant water supply adaptation component.

6. The method for optimizing soil particle strength based on moisture control applied to slopes according to claim 5, characterized in that: The process of S3 is as follows: S31. Based on the optimal moisture content in the basic parameters, adjust the moisture content of the experimental raw materials to the optimal moisture content through moisture control methods, so that it is within the range of moisture content error fluctuation. S32. A composite modifier is added to the soil raw material in the experiment. Then, high-frequency low-amplitude vibration is used to promote the rearrangement and close contact of the soil raw material particles, reduce the proportion of large pores, and at the same time promote the full combination of the modifier with the surface of the raw material particles, enhance the adsorption capacity of strongly bound water, and obtain the initial soil particles. S33. Add biomimetic mineralization particle generating components and bio-cementing strengthening components to the initial soil particles to generate stable soil particles through the synergistic effect of biomimetic mineralization and bio-cementation.

7. The method for optimizing soil particle strength based on moisture control applied to slopes according to claim 6, characterized in that: The biomimetic mineralization particle generating component in S33 is composed of a mixture of cementing solution A, cementing solution B, and a crystal form regulator, wherein cementing solution A is... Solution, cementing liquid B is ; The bio-bonding strengthening component consists of urease bacteria solution and straw fiber.

8. The method for optimizing soil particle strength in slopes based on moisture control according to claim 7, characterized in that, The process of S4 is as follows: S41. Build an intelligent monitoring platform that integrates humidity sensors, intensity sensors, permeability sensors, and rainfall sensors; S42. The soil particles obtained in S3 are laid on the test slope, and the soil from which the soil particles are generated is compacted using a layered compaction method. S43. Lay a biodegradable moisture-retaining film on the surface of soil particles to maintain the experimental slope. S44. After maintenance is completed, plant greenery on the experimental slope. S45. Monitor the condition of the experimental slope in real time through the intelligent monitoring platform to obtain the state index of soil particles. Determine whether the generated soil particles are qualified based on the state index. If they are not qualified, return to S3.

9. A method for optimizing soil particle strength based on moisture control applied to slopes according to claim 8, characterized in that: The soil particle state indicators mentioned in S4 include particle size, particle aggregation rate, particle formation rate, shear strength, cohesion, internal friction angle, water content stability, erosion resistance coefficient, soil particle loss rate, vegetation survival rate, and duration of effective soil water content.

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