Dry-wet cycle stability enhancing construction method for granite slime cake roadbed filling

Abstract

The invention relates to the technical field of road engineering, and discloses a dry-wet cycle stability enhancing construction method for granite slime cake roadbed filling, which comprises the following steps: S1, curing agent selection: selecting cement as a main curing agent, and performing proportioning research in combination with a novel environment-friendly curing agent including polymer modified cement or slag cement; s2, determining an optimal proportion: determining the optimal proportion of a curing agent and the optimal moisture content and the maximum dry density of the mud cake through a laboratory test; s3, dynamic optimization: dynamically optimizing the material ratio by applying a machine learning algorithm so as to improve the performance of the material; s4, manufacturing a test piece: preparing a mixed material and manufacturing a standard test piece, and ensuring that the test piece is uniform and cured in a proper environment. By optimizing the mix proportion of the granite slime cake and selecting the curing agent, the mechanical property and durability of the roadbed material under the dry-wet cycle condition are remarkably improved, and it is ensured that the roadbed material keeps good stability in the complex environment.

Description

Technical Field

[0001] This invention relates to the field of road engineering technology, specifically to a construction method for enhancing the stability of dry-wet cycle roadbed filling using granite ore mud cake. Background Technology

[0002] Several challenges arise during road construction, particularly when using granite ore mud cake as a roadbed material. Existing technologies primarily rely on traditional materials and construction methods. While these methods can meet basic requirements to some extent, they exhibit numerous shortcomings in practical applications. Firstly, traditional mud cakes are often affected by environmental factors during the curing process, such as temperature and humidity variations, leading to uneven curing. This weakens the material structure and reduces its strength, making it difficult to ensure the long-term stability of the roadbed.

[0003] Secondly, existing technologies lack a systematic and scientific approach in the selection and proportioning of curing agents. Most current curing agents are cement-based, which, while possessing certain properties, perform poorly in high-humidity or variable environments. Furthermore, the lack of optimized proportioning designs for different environmental conditions often results in insufficient water resistance and load-bearing capacity of the materials during actual construction, further increasing the risk of roadbed deformation and settlement.

[0004] Furthermore, the performance evaluation of existing materials under wet-dry cycling conditions is mostly limited to the laboratory stage, lacking effective on-site monitoring methods. This prevents construction personnel from monitoring the material's condition in real time during environmental changes, leading to a failure to take timely countermeasures when problems arise. Therefore, compared to actual engineering needs, existing technologies are quite weak in construction quality control and monitoring, making it difficult to meet the requirements of modern engineering for high-performance materials. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a construction method for enhancing the stability of granite ore mud cake roadbed filling under dry-wet cycle conditions, which solves the problems of poor mechanical properties and insufficient durability of granite ore mud cake under dry-wet cycle conditions in existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a construction method for enhancing the stability of granite ore mud cake roadbed through wet-dry cycles, comprising the following steps:

[0007] S1. Selection of curing agent: Cement is selected as the main curing agent, and a formulation study is conducted in combination with new environmentally friendly curing agents, including polymer-modified cement or slag cement.

[0008] S2. Determination of optimal ratio: The optimal ratio of curing agent, as well as the optimal moisture content and maximum dry density of the mud cake, are determined through laboratory tests.

[0009] S3. Dynamic optimization: Applying machine learning algorithms to dynamically optimize the material ratio in order to improve the material performance;

[0010] S4. Specimen preparation: Prepare the mixed materials and make standard specimens, ensuring that the specimens are uniform and cured in a suitable environment;

[0011] S5. Wet and dry cycle test: Under the set wet and dry cycle conditions, the specimen is subjected to a wet and dry cycle test, and its unconfined compressive strength is measured.

[0012] S6. Construction and Monitoring: Carry out roadbed construction, including mixing, paving, compaction and curing processes. At the same time, introduce an intelligent monitoring system, set quality control points, and regularly provide feedback on test and construction data to continuously optimize project quality.

[0013] Preferably, the novel environmentally friendly curing agent is polymer-modified cement or slag cement.

[0014] Preferably, the optimal moisture content and maximum dry density are obtained by heavy compaction test.

[0015] Preferably, the machine learning algorithm is a linear regression model or a support vector machine, used for dynamic optimization analysis of material proportions and construction environmental conditions.

[0016] Preferably, the preparation step of the standard specimen is to load the mixed material into a standard mold and cure it in a constant temperature environment.

[0017] Preferably, the drying stage of the dry-wet cycle test is drying in an oven at 40±2℃ for 12 hours, and the wetting stage is soaking in water at 20±2℃ for 12 hours, and the cycle is repeated 3 times.

[0018] Preferably, the test formula for the unconfined compressive strength is:

[0019]

[0020] Among them, R c denoted as unconfined compressive strength, P as the maximum load at failure, and A as the cross-sectional area of ​​the specimen.

[0021] Preferably, the mixing step of the construction is carried out using specialized equipment to ensure uniform mixing and control the moisture content within the optimal range.

[0022] Preferably, the intelligent monitoring system consists of temperature and humidity sensors and a data processing unit to monitor environmental parameters at the construction site in real time.

[0023] Preferably, the quality control includes setting multiple quality control points, periodically testing the moisture content, density, and mix proportion of the mixture, and recording and analyzing the data.

[0024] This invention provides a construction method for enhancing the dry-wet cycle stability of granite ore mud cake roadbed filling. It has the following beneficial effects:

[0025] 1. This invention improves the physical properties of granite ore mud cake by optimizing the mix design and selecting the curing agent. Through scientific curing agent formulation and material selection, not only is the strength and stability of the mud cake enhanced, but its durability under wet-dry cycling conditions is also improved, fully meeting the stringent requirements of modern roadbed engineering for material performance.

[0026] 2. This invention introduces intelligent monitoring technology to collect and analyze on-site parameters in real time, significantly improving the controllability of the construction process. Through dynamic monitoring of environmental factors and material properties, potential problems can be identified and corrected promptly, ensuring that construction quality consistently meets design standards and providing a solid foundation for subsequent projects.

[0027] 3. This invention, through standardized operating procedures and optimized maintenance methods, ensures that the mixed mud cake has excellent compressive strength and water resistance during construction operations, thereby effectively reducing the risk of roadbed deformation and damage.

[0028] 4. The wet-dry cycle test procedure of this invention systematically evaluates the performance changes of the material under different environmental conditions, providing sufficient data support. This test not only verifies the actual performance of the new material, but also lays a theoretical foundation for future material optimization, enabling the design scheme to more effectively cope with different construction environments.

[0029] 5. This invention combines traditional roadbed construction techniques with modern technological means to construct a new construction model. By realizing intelligent monitoring and data-driven decision support, it not only improves construction efficiency but also further ensures road safety and comfort, opening up new ideas and directions for engineering applications in related fields. Attached Figure Description

[0030] Figure 1 This is a flowchart of the method of the present invention;

[0031] Figure 2 This is a flowchart of the dry-wet cycle test of the present invention. Detailed Implementation

[0032] The technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see the appendix Figure 1 -Appendix Figure 2 This invention provides a method for enhancing the dry-wet cycle stability of granite ore mud cake roadbed filling, comprising the following steps:

[0034] S1. Selection of curing agent: Cement is selected as the main curing agent, and a formulation study is conducted in combination with new environmentally friendly curing agents, including polymer-modified cement or slag cement.

[0035] This embodiment describes step S1, "Selection and Preparation of Curing Agent," in detail. Firstly, in this invention, the selection of the curing agent is crucial for improving the wet-dry cycle stability of granite sludge cake. After researching and analyzing different types of curing agents, this embodiment preferentially uses cement as the main curing agent to fully utilize its excellent hydration properties and strength development capabilities. Furthermore, to further enhance the curing effect, this embodiment also incorporates novel environmentally friendly curing agents, such as polymer-modified cement and slag cement.

[0036] In selecting a curing agent, the primary focus is on its curing reaction characteristics in the presence of moisture. During the reaction of cement with water, hydrates are formed through hydration, thereby increasing the material's strength. The polymer-modified cement mentioned in this article, due to the cross-linked structure formed during hydration, can significantly improve the material's adhesion and toughness, further enhancing its resistance to wet-dry cycles. Similarly, the use of slag cement not only improves the durability of the blend, but its mineral composition also provides the mixture with better resistance to chemical attack.

[0037] In the research process of curing agent formulation, this embodiment adopted laboratory testing methods to systematically evaluate the effects of different curing agent combinations at different dosages. Multiple experimental groups were set up to conduct comparative tests on different curing agent ratios to obtain the optimal curing agent combination. The tests included, but were not limited to, the determination of mechanical properties such as compressive strength, shear strength, and tensile strength. This not only ensured that the performance data of each curing agent was sufficiently reliable but also provided a scientific basis for subsequent construction.

[0038] During the study of the curing agent formulation, the optimal moisture content and maximum dry density of the mud cake were determined through heavy compaction tests. In this test, the mixed material was subjected to a certain static pressure under different humidity conditions to simulate the state during actual construction. Specifically, the heavy compaction test method used conforms to national standards and can accurately reflect the physical properties of the mud cake at different moisture contents. Displacement sensors and a data acquisition system were used to record and analyze the data from each set of tests in real time. This step provides an important physical parameter basis for subsequent construction operations.

[0039] When studying the selection and proportioning of curing agents for mixtures, special attention must be paid to the uniformity of the components. Studies have shown that the uniformity of mixing directly affects the performance of the final material. Therefore, in practical operation, it is particularly important to use advanced mixing equipment to ensure that the components are fully and uniformly combined during mixing, thereby improving the overall performance of the material.

[0040] The selection and preparation steps of the curing agent in this embodiment ensured the excellent performance of the granite ore mud cake in subsequent wet-dry cycle tests and actual subgrade construction. Meanwhile, the optimal selection and proportioning of the curing agent laid a solid foundation for its long-term stability in high-humidity or variable environments. Throughout the entire technical system, the scientific selection and proportioning of the curing agent not only improved the efficiency of material use but also provided important technical support for innovative subgrade engineering.

[0041] In summary, this embodiment, through the clear selection of the curing agent, systematic experimental screening, and strict control of mixing uniformity, achieved enhanced stability of granite slurry cake under wet-dry cycling conditions, providing a reliable material basis for subsequent steps. The detailed description of these technical features not only fully demonstrates the methodological principles of this invention but also provides important guidance and reference for further applications and practices.

[0042] S2. Determination of optimal ratio: The optimal ratio of curing agent, as well as the optimal moisture content and maximum dry density of the mud cake, are determined through laboratory tests.

[0043] In this embodiment, step S2, "Mix Design and Optimization," is described in detail. This step is of great significance in the roadbed filling of granite ore mud cake, aiming to improve the overall performance of the materials and ensure the stability and durability of the project through scientific mix design and optimization.

[0044] In this embodiment, mix design and optimization first involves determining the optimum moisture content and maximum dry density. To this end, a heavy compaction test is employed to systematically test mud cakes with different amounts of curing agent. This process not only reflects the physical properties of the mud cakes at different moisture contents but also ensures optimal filling results during construction. Specifically, the heavy compaction test involves uniformly filling the mud cakes into a standard mold and applying specific pressure. After the test, the dry density is measured to determine the maximum dry density at the corresponding moisture content.

[0045] After collecting the experimental data, statistical analysis tools were used to determine the optimal moisture content. This moisture content ensures that the mud cake achieves the best compaction effect during construction, guaranteeing good mechanical properties after filling. Insufficient moisture content in the mud cake will reduce the material's plasticity, affecting the compaction effect, while excessive moisture may lead to insufficient strength of the mud cake. Therefore, the optimized moisture content is crucial for the construction quality of the material.

[0046] Based on the determination of the optimal moisture content, the material ratio is further optimized. It is recommended to use advanced machine learning algorithms to conduct dynamic optimization analysis by combining historical data and real-time parameters. A suitable regression model (such as linear regression or support vector machine) is selected, and its ability to model the relationship between material ratio and performance is utilized to identify key factors affecting material performance.

[0047] The machine learning process includes data collection, feature selection, model training, and evaluation. By scoring and evaluating data obtained under different mixing ratios and construction conditions, and through repeated iterations, the mix proportions are optimized to ultimately obtain the theoretically optimal ratio. This dynamic optimization strategy ensures that the material usage ratios can be rapidly adjusted based on real-time feedback during actual construction, maximizing the advantages of each component.

[0048] After the mix design is completed, crucial verification work is required to ensure the feasibility of the theoretically guided mix design in actual construction. This process involves preparing test specimens and comparing the performance of different mix designs, including unconfined compressive strength, shear strength, and impermeability. These performance tests further validate the effectiveness of the optimized mix design in practical applications, providing a basis for its application in engineering practice.

[0049] In summary, this embodiment provides a scientific basis for the subgrade filling of granite ore mud cake through systematic mix design and optimization steps, ensuring the stability and durability of the material under wet-dry cycle environments. Through precise material selection and dynamic optimization model analysis, material properties can be fully utilized in practical applications to achieve the goal of improving project quality. This step not only focuses on key physical parameters but also emphasizes the flexibility and adaptability of material proportions, ensuring the reliability of construction under different environmental conditions.

[0050] S3. Dynamic optimization: Applying machine learning algorithms to dynamically optimize the material ratio in order to improve the material performance;

[0051] In this embodiment, step S3, "Specimen Fabrication," is described in detail. This step is crucial in ensuring that the timber pile composite material achieves the required strength and stability. The successful preparation of the specimen directly affects subsequent performance testing and material application effects; therefore, this embodiment has systematically and standardized the design and implementation of this step.

[0052] During specimen preparation, the first step is to uniformly mix the optimized curing agent with the slurry. To achieve good mixing, a high-efficiency mixing device is preferred, allowing for precise addition of materials to ensure uniform distribution of each component. This equipment should prevent stratification or sedimentation during mixing, ensuring that the physical and chemical properties of the mixture meet design requirements.

[0053] After mixing, the final mixture is poured into a standard mold. The mold selection should conform to national standards, and materials with good dimensional stability and surface smoothness are typically chosen to prevent adhesion and deformation during specimen molding. Preferred mold materials are stainless steel or polymers, which provide sufficient support during curing.

[0054] During the specimen filling process, a layered pouring method should be adopted to improve the density and uniformity of the material. Each layer of material should be gently vibrated after filling to ensure sufficient compaction and reduce internal porosity. This process can be achieved using a vibrating table or a manual vibrator, and the uniformity of filling must be continuously monitored to avoid uneven specimen strength due to improper construction.

[0055] After filling, the specimens need to be cured under fixed environmental conditions. Optimizing the curing conditions is crucial for the subsequent performance of the specimens. Under normal circumstances, the temperature and humidity of the curing environment should be kept constant to prevent the specimens from drying out and cracking due to excessive moisture evaporation. It is preferable to keep the specimens saturated with moisture and spray them with water regularly during the curing period to ensure that their surfaces remain moist.

[0056] Furthermore, the curing period should be set reasonably based on the specific properties of the materials in the mix. For example, if a more reactive curing agent is used, the curing time can be appropriately shortened; conversely, if a slower-acting curing agent is used, the curing period should be extended to ensure the curing reaction proceeds fully. According to the principles of chemical reaction, the hydrates generated by the curing agent during the reaction process will further enhance the strength of the specimen; therefore, a proper curing process is essential.

[0057] After completing the curing process, the specimens can be tested for unconfined compressive strength to evaluate the material's stability and performance under wet-dry cycling conditions. This test is performed using the following formula:

[0058]

[0059] Among them, R c This formula represents the unconfined compressive strength, where P is the maximum load at which the specimen fails, and A is the cross-sectional area of ​​the specimen. This formula has strong universality and can provide a scientific basis for subsequent performance evaluation.

[0060] In summary, the specimen preparation steps in this embodiment, through standardized operating procedures, detailed environmental control, and curing methods, ensured that the granite sludge cake material exhibited excellent performance in subsequent wet-dry cycle tests. Simultaneously, emphasis was placed on the uniformity of the specimens to obtain accurate data in material property testing. The effective implementation of this process lays a solid foundation for subsequent construction and application, and provides ample support for the overall effectiveness of this invention.

[0061] S4. Specimen preparation: Prepare the mixed materials and make standard specimens, ensuring that the specimens are uniform and cured in a suitable environment;

[0062] In this embodiment, step S4, "wet-dry cycle test," is described in detail. This step is of great significance in the roadbed filling of granite ore cake, aiming to evaluate the changes in material properties and long-term stability of the solidified cake under wet-dry cycle conditions.

[0063] First, the wet-dry cycle test is designed to simulate environmental changes that may be encountered in real-world applications. In this process, each specimen is subjected to periodic wet-dry cycles under predetermined drying and immersion conditions. Specifically, the test typically involves drying at a specific ambient temperature, followed by immersion in water, to create moisture variations in a real-world application environment.

[0064] In the specific operating procedure, the specimens are first placed in a temperature- and humidity-controlled oven for drying. This aims to maintain a stable drying environment and prevent potential cracking. The drying time and temperature settings should be scientifically arranged according to the type of curing agent and material properties used. Generally speaking, appropriate drying conditions can promote the gradual release of moisture from the material's interior, while guiding the further progress of the curing reaction.

[0065] After the drying stage, the specimens will proceed to the wetting stage. In this stage, the specimens are immersed in clean water for a certain period to allow them to absorb moisture and return to near their initial state. At this time, the penetration of moisture not only triggers subtle structural adjustments within the material but also characterizes its moisture resistance and hydrolysis resistance.

[0066] After each wet-dry cycle, the specimens must be tested for unconfined compressive strength to assess the changes in material performance after wet-dry cycling.

[0067] When conducting wet-dry cycle tests, it is crucial to ensure the consistency and repeatability of test conditions. Therefore, detailed operating procedures should be established for each test cycle to ensure that each specimen is treated under identical conditions throughout the process, minimizing the impact of human error on the test results. Appropriate records should be kept of the parameters for each test stage, including drying and wetting times, temperatures, and changes in specimen mass, forming a standardized data foundation.

[0068] By conducting this series of meticulous experimental operations, this embodiment can fully evaluate and record the changes in the physical properties of granite slurry cake under alternating wet and dry conditions. This data will greatly enrich the present invention's understanding of material stress response, provide a scientific basis for future engineering design and construction, and offer a reference for the continuous optimization of curing agent selection and formulation.

[0069] In summary, the wet-dry cycle test procedure in this embodiment, through scientific design, rigorous operating procedures, and systematic data recording, effectively verified the long-term durability and stability of the granite ore mud cake. This process concretely embodies the technical solution of this invention, thus providing a solid and reliable foundation for subsequent construction and application, and also laying the theoretical and practical basis for further improvement of material performance in the future.

[0070] S5. Wet and dry cycle test: Under the set wet and dry cycle conditions, the specimen is subjected to a wet and dry cycle test, and its unconfined compressive strength is measured.

[0071] In this embodiment, step S5, "subgrade construction," is described in detail. This step aims to apply fully validated granite mud cake to the actual subgrade filling, ensuring that its performance is fully utilized during construction, thereby improving the overall stability and durability of the subgrade.

[0072] In the initial stage of roadbed construction, a detailed survey and preparation of the construction site is necessary. Information on soil properties, geological structure, and hydrological conditions at the construction site should be comprehensively collected and analyzed. This data will provide crucial information for material selection and construction technology development. Ideally, corresponding construction plans should be developed for different geological conditions to achieve the best filling effect.

[0073] Next, prepare the mixed materials according to the optimized mix proportions. At this point, the selected curing agent should be thoroughly mixed with the mud cake to ensure the consistency and uniformity of the materials. To avoid uneven material properties, stable temperature and humidity need to be maintained during the mixing process to ensure that each batch of mixed materials maintains consistency in chemical reaction and physical properties. The standardization of this process greatly affects the quality of subsequent construction and the stability of the roadbed.

[0074] After the mixed material is prepared, the paving operation is carried out. At this time, specialized paving equipment should be used to evenly spread the mixed material on the construction surface. To ensure the thickness and uniformity of the paved layer, appropriate control parameters need to be set, including paving speed, material output rate, and post-paving compaction measures. The key to this step is to ensure that the material does not stratify or separate into fine and coarse particles during paving.

[0075] After laying, timely compaction is necessary. Specialized compaction equipment should be used to effectively compact the newly laid mud cakes to achieve the desired density and strength. The applied pressure during compaction should be scientifically adjusted according to the type of mixed material and the external environment. Maintaining appropriate humidity is crucial for achieving optimal compaction results. Dynamic compaction is preferred, as repeated dynamic loading continuously eliminates internal voids, thereby improving the density and load-bearing capacity of the fill.

[0076] After compaction, the curing stage begins. During this process, appropriate moisture retention measures should be implemented in the filled area to prevent the construction materials from cracking or losing strength due to excessive moisture evaporation. The curing time should be adjusted according to specific climatic conditions and material characteristics, generally preferably several days, to ensure complete curing reaction and maximize the strength and stability of the material.

[0077] During construction, an intelligent monitoring system is also required to monitor changes in construction parameters in real time. This system will help the construction team collect and analyze data such as temperature, humidity, and compaction degree, and dynamically adjust the construction process based on data feedback. The introduction of the intelligent monitoring system aims to improve the accuracy and real-time performance of construction, thereby enhancing the overall construction quality.

[0078] In summary, the roadbed construction steps of this embodiment constitute a systematic process, encompassing the entire workflow from site preparation, material preparation, paving, compaction to curing. Through scientific and standardized construction methods, the construction of granite mud cakes ensures that the expected technical standards and performance requirements are met in practical applications. This process not only enhances the feasibility of the present invention but also provides strong support and guarantees for subsequent practical applications. Ultimately, the effective execution of construction operations will directly affect the stability and durability of the roadbed, laying the foundation for the success of related projects.

[0079] S6. Construction and Monitoring: Carry out subgrade construction, including mixing, paving, compaction and curing processes. At the same time, introduce an intelligent monitoring system, set quality control points, and regularly provide feedback on test and construction data to continuously optimize project quality.

[0080] In this embodiment, step S6, "Intelligent Monitoring and Quality Control," is described in detail. This step combines modern technology with traditional construction methods, aiming to ensure the construction quality of materials and the long-term performance of the roadbed by monitoring key parameters during the construction process in real time.

[0081] The implementation of intelligent monitoring first requires comprehensive collection of environmental parameters at the construction site. This is achieved by deploying devices such as temperature and humidity sensors, strain gauges, and pressure sensors to automatically acquire real-time data from the construction site. These sensors should be strategically positioned to cover the main areas of the construction site, ensuring the comprehensiveness and representativeness of the data.

[0082] Specifically, temperature and humidity sensors monitor the air temperature and humidity of the construction environment in real time. Temperature changes can affect the curing process of materials, while humidity directly affects the drying and curing efficiency of the clay cake. Therefore, ensuring a constant construction environment is crucial for achieving the expected material properties. By recording data and correlating real-time changes in temperature and humidity with the construction process, a scientific basis for construction decisions can be provided.

[0083] During this process, stress sensors are used to monitor the pressure applied to the mud cake by the construction equipment. This parameter not only affects the material's density but is also closely related to the roadbed's bearing capacity. By collecting stress data from the sensors, construction personnel can adjust the operation of the equipment in a timely manner to ensure appropriate pressure is maintained throughout the process, preventing material damage caused by excessive pressure.

[0084] To improve monitoring efficiency throughout the construction process, a data processing system can be used to dynamically analyze the collected data. This system should have real-time processing, analysis, and feedback capabilities, promptly presenting monitoring data to construction management personnel. Through charts or alarm information, managers can quickly understand the construction status and material characteristics, allowing for timely adjustments.

[0085] Regarding quality control, this embodiment proposes establishing a comprehensive quality inspection standard system. Clear quality inspection parameters should be set for each stage of construction, including material preparation, laying, and compaction. These parameters include the moisture content, compaction degree, and compressive strength of the mud cake. By tracking and analyzing these key indicators, it can be ensured that the construction quality meets engineering standards and design requirements.

[0086] For any non-compliance detected, timely corrective measures should be developed. Ideally, a database should be established to store all construction data for each round of inspections, facilitating future review and analysis. Furthermore, by summarizing and analyzing this monitoring data, construction management methods can be continuously optimized, thereby improving the overall efficiency of subsequent construction and the reliability of material usage.

[0087] The entire intelligent monitoring and quality control process fully demonstrates the scientific management methods applied in roadbed construction by this invention. Through real-time data monitoring and feedback mechanisms, effective collaboration among all construction stages is ensured, thereby guaranteeing the full utilization of the material's physical properties. Furthermore, this step provides crucial evidence for material performance verification, ensuring that the final roadbed filling meets or exceeds relevant standards, achieving continuous improvement and enhancement of construction quality.

[0088] In summary, the intelligent monitoring and quality control steps in this embodiment, through a combination of scientific and technological means and standardized management, achieve comprehensive monitoring of the construction process. This process not only optimizes the application effect of materials but also provides important guarantees for the safety and durability of road engineering. Ultimately, it lays the foundation for the effective application of the technical solution of this invention.

[0089] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for enhancing the stability of dry-wet cycle construction of granite ore mud cake roadbed, characterized in that, Includes the following steps: S1. Selection of curing agent: Cement is selected as the main curing agent, and a formulation study is conducted in combination with new environmentally friendly curing agents, including polymer-modified cement or slag cement. S2. Determination of optimal ratio: The optimal ratio of curing agent, as well as the optimal moisture content and maximum dry density of the mud cake, are determined through laboratory tests. S3. Dynamic optimization: Applying machine learning algorithms to dynamically optimize the material ratio in order to improve the material performance; S4. Specimen preparation: Prepare the mixed materials and make standard specimens, ensuring that the specimens are uniform and cured in a suitable environment; S5. Wet and dry cycle test: Under the set wet and dry cycle conditions, the specimen is subjected to a wet and dry cycle test, and its unconfined compressive strength is measured. S6. Construction and Monitoring: Carry out roadbed construction, including mixing, paving, compaction and curing processes. At the same time, introduce an intelligent monitoring system, set quality control points, and regularly provide feedback on test and construction data to continuously optimize project quality.

2. The method for enhancing the stability of dry-wet cycle construction of granite ore mud cake roadbed according to claim 1, characterized in that, The novel environmentally friendly curing agent is polymer-modified cement or slag cement.

3. The method for enhancing the stability of dry-wet cycle construction of granite ore mud cake roadbed according to claim 1, characterized in that, The optimal moisture content and maximum dry density were obtained through heavy compaction tests.

4. The method for enhancing the stability of dry-wet cycle construction of granite ore mud cake roadbed according to claim 1, characterized in that, The machine learning algorithm is a linear regression model or a support vector machine, used for dynamic optimization analysis of material ratios and construction environmental conditions.

5. The method for enhancing the stability of dry-wet cycle construction of granite ore mud cake roadbed according to claim 1, characterized in that, The preparation steps of the standard specimen are to load the mixed material into a standard mold and cure it in a constant temperature environment.

6. The method for enhancing the stability of dry-wet cycle construction of granite ore mud cake roadbed according to claim 5, characterized in that, The drying stage of the dry-wet cycle test consists of drying in an oven at 40±2℃ for 12 hours and wetting stage consists of soaking in water at 20±2℃ for 12 hours, and the cycle is repeated 3 times.

7. The method for enhancing the stability of dry-wet cycle construction of granite ore mud cake roadbed according to claim 1, characterized in that, The formula for testing the unconfined compressive strength is as follows: Among them, R c denoted as unconfined compressive strength, P as the maximum load at failure, and A as the cross-sectional area of ​​the specimen.

8. The method for enhancing the stability of dry-wet cycle construction of granite ore mud cake roadbed according to claim 1, characterized in that, The mixing process during construction employs specialized equipment to ensure uniform mixing and control the moisture content within the optimal range.

9. The method for enhancing the stability of dry-wet cycle construction of granite ore mud cake roadbed according to claim 1, characterized in that, The intelligent monitoring system consists of temperature and humidity sensors and a data processing unit, which monitors environmental parameters at the construction site in real time.

10. The method for enhancing the stability of dry-wet cycle construction of granite ore mud cake roadbed according to claim 1, characterized in that, The quality control includes setting multiple quality control points, regularly testing the moisture content, density, and mix proportion of the mixture, and recording and analyzing the data.

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