A virtual simulation experimental method and system for preparing foam lightweight soil

Abstract

The present invention proposes a virtual simulation experiment method and system for foam lightweight soil preparation. This method computerizes the foam lightweight soil preparation process. By constructing a first relationship between construction wet density and foam lightweight soil mix material parameters, the system determines whether the construction wet density requirement is met based on the relevant information of the material to be tested. If not, the foaming liquid mass in the test material is adjusted until the construction wet density is met. The system then determines the fluidity. Once the fluidity requirement is met, the revised test material mix ratio is further adjusted based on actual on-site construction conditions to obtain the final test material mix ratio. The entire test process does not require actual test operations, greatly reducing the time required for test experiments, avoiding material waste, and lowering test costs.

Description

Technical Field

[0001] The invention belongs to the technical field of simulation calculation, and in particular relates to a virtual simulation experiment method and system for preparing foam lightweight soil. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Foam lightweight soil is a green material made by mixing cementitious material slurry and foam. It has the advantages of adjustable strength, easy construction, economy and environmental protection, and is widely used in the field of construction engineering. There are two ways to introduce bubbles into the slurry: chemical method and physical method. However, the chemical method is relatively complicated to operate and the size of the bubbles introduced is uneven. Therefore, most of the foam lightweight soils currently on the market are made by the physical method of mixing the prepared foam into the cementitious material slurry. Foam lightweight soil with good properties should have stable density, suitable fluidity and reliable strength. However, due to the instability of the properties of the bubbles themselves and the differences in the cementitious materials used, it is not easy to meet the above conditions. Therefore, reasonable design and multiple trial mixing must be carried out in advance before construction to ensure the stable quality of the foam lightweight soil during formal construction.

[0004] From the above, it can be seen that in the prior art, the trial mixing of foam lightweight soil requires multiple designs and actual experimental operation trial mixing according to the designed mix ratio. The whole process is time-consuming and requires a large amount of trial mixing materials. Summary of the Invention

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a virtual simulation experimental method and system for the preparation of foam lightweight soil. The entire trial preparation process does not require actual trial preparation operations, which greatly reduces the time required for the trial preparation experiment, avoids material waste, and reduces the trial preparation cost.

[0006] To achieve the above-mentioned object, the first aspect of the present invention provides a virtual simulation experimental method for preparing foam lightweight soil, the method comprising:

[0007] Based on the relationship between the construction wet density and the foam lightweight soil mix material parameters, a first relationship is constructed; wherein the foam lightweight soil mix material parameters include the water-binder ratio, the foaming liquid bubble volume, and the foaming liquid mass;

[0008] Based on the parameters of the material to be tested and in combination with the first relationship, the mass of the foaming liquid in the material to be tested is changed until the material to be tested meets the construction wet density requirement, thereby obtaining a revised mix ratio of the test material;

[0009] According to the revised trial material ratio, determine whether the fluidity requirements are met;

[0010] If the fluidity requirements are met, the amount of foaming liquid in the first revised trial mix is ​​adjusted according to the on-site construction parameters to obtain the final mix ratio of the trial mix.

[0011] A second aspect of the present invention provides a virtual simulation experimental system for preparing foam lightweight soil, the system comprising:

[0012] A design requirement module is configured to construct a first relationship based on the relationship between the construction wet density and the foam lightweight soil mix material parameters, wherein the foam lightweight soil mix material parameters include a water-binder ratio, a foaming liquid bubble volume, and a foaming liquid mass;

[0013] a mix ratio design module for changing the mass of the foaming liquid in the material to be tested based on the parameters of the material to be tested and in combination with the first relationship until the material to be tested meets the construction wet density requirement, thereby obtaining a revised mix ratio of the test material; and determining whether the fluidity requirement is met based on the revised mix ratio of the test material;

[0014] The ratio adjustment module is used to adjust the amount of foaming liquid in the first corrected trial material according to the on-site construction parameters while meeting the fluidity requirements to obtain the final ratio of the trial material.

[0015] A third aspect of the present invention provides a computer device comprising: a processor, a memory, and a bus, wherein the memory stores machine-readable instructions executable by the processor. When the computer device is running, the processor and the memory communicate via the bus, and when the machine-readable instructions are executed by the processor, a virtual simulation experimental method for preparing foam lightweight soil is performed.

[0016] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, a virtual simulation experimental method for preparing foam lightweight soil is executed.

[0017] One or more of the above technical solutions have the following beneficial effects:

[0018] In the present invention, the foam lightweight soil preparation process is computerized. By constructing a first relationship between construction wet density and foam lightweight soil mix material parameters, the relevant information of the material to be trial-mixed is used to determine whether the construction wet density requirement is met. If not, the mass of the foaming liquid in the material to be trial-mixed is adjusted until the construction wet density is met. The fluidity is then determined. Once the fluidity requirement is met, the revised trial mix ratio is adjusted again based on actual on-site construction conditions to obtain the final trial mix ratio. The entire trial mix process does not require actual trial mix operations, greatly reducing the time required for trial mix experiments, avoiding material waste, and lowering trial mix costs.

[0019] Advantages of additional aspects of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0021] Figure 1 This is a block diagram of a virtual simulation experiment system for preparing foam lightweight soil in Example 2 of the present invention;

[0022] Figure 2 This is a flowchart of a virtual simulation experiment system for preparing foam lightweight soil in the second embodiment of the present invention;

[0023] Figure 3 This is a block diagram of the ratio design module in Example 2 of the present invention. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0025] It should be noted that the terms used herein are for describing particular embodiments only and are not intended to limit the exemplary embodiments according to the present invention.

[0026] In the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0027] Example 1

[0028] This embodiment discloses a virtual simulation experimental method for preparing foam lightweight soil, including:

[0029] Step 1: Construct a first relationship based on the relationship between the construction wet density and the foam lightweight soil mix material parameters; wherein the foam lightweight soil mix material parameters include the water-binder ratio, the foaming liquid bubble volume, and the foaming liquid mass;

[0030] Step 2: Based on the parameters of the material to be tested and in combination with the first relationship, the mass of the foaming liquid in the material to be tested is changed until the material to be tested meets the construction wet density requirement, thereby obtaining a revised mix ratio of the test material;

[0031] Step 3: Based on the revised mix ratio of the trial materials, determine whether the fluidity requirements are met;

[0032] Step 4: If the fluidity requirements are met, adjust the amount of foaming liquid in the first revised trial material according to the on-site construction parameters to obtain the final trial material mix ratio.

[0033] In this embodiment, the foam lightweight soil preparation process is computerized. By constructing a first relationship between construction wet density and foam lightweight soil mix material parameters, the relevant information of the material to be trial-mixed is used to determine whether the construction wet density requirement is met. If not, the mass of the foaming liquid in the trial-mixed material is adjusted until the construction wet density is met. The fluidity is then determined. Once the fluidity requirement is met, the revised trial mix ratio is further adjusted based on actual on-site construction conditions to obtain the final trial mix ratio. The entire trial mix process does not require actual trial mix operations, greatly reducing the time required for trial mix experiments, avoiding material waste, and lowering trial mix costs.

[0034] The following is a detailed description of the virtual simulation experimental method for preparing foam lightweight soil proposed in this embodiment:

[0035] In step 1, each engineering mode corresponds to different construction wet density and fluidity requirements for the foam soil mixture. Based on the determined engineering mode, the target construction wet density and fluidity requirements are obtained. These engineering modes include soft foundation bridgehead roadbed backfill, old road reconstruction and expansion, pipeline backfill, and cut-fill interface treatment.

[0036] For example, for the “soft foundation bridgehead roadbed backfill” engineering model, the search specification “Q / CR 758-2020 Technical Specification for Bubble Mixed Lightweight Soil Filling Engineering” requires a design wet density of 600kg / m 3 , the design flow value is 160-190mm.

[0037] Assuming that 1 cubic meter of mixture consists entirely of water and cementitious materials, solving the following equations, we can get m W and m B :

[0038]

[0039] Among them, m W Indicates the mass of water (kg), m B represents the mass of cementitious material (kg), ρ W Indicates the density of water (kg / m 3 ), ρ B Indicates the total density of the cementitious material (kg / m 3 ).

[0040]

[0041] Among them, ρ iIndicates the density of each cementitious material, k i Indicates the proportion of each cementitious material.

[0042] Next, determine the bubble volume v introduced per 1 kg of foaming liquid used:

[0043]

[0044] Among them, ρ A Indicates the density of the foaming liquid (kg / m 3 ), e represents the foaming ratio.

[0045] Combining formula (1)-formula (3), verify whether formula (4) is valid. Formula (4) is as follows:

[0046]

[0047] Among them, ρ t Indicates construction wet density (kg / m 3 ).

[0048] In step 2, according to the parameters of the materials to be tested, including but not limited to the type of cementitious material used, the apparent density of the cementitious material, the density of the foaming liquid and the foaming ratio, etc., it is determined by formula (4) whether the construction wet density requirements are met. If the requirements are not met, the foaming liquid mass m is adjusted. A , until formula (4) is established, and the corrected mix ratio of the materials to be tested is obtained.

[0049] In step 3, after the wet density is met, the fluidity is tested to see if it meets the requirements. Specifically:

[0050] Since the water-binder ratio directly affects the fluidity of the slurry, and the increase in foam increases the discontinuity of the slurry, the flow value of foam soil mainly depends on these two factors. The parameter r is defined as follows:

[0051]

[0052] Where w / b is the water-binder ratio; V% is the volume fraction of the foaming liquid, i.e., the ratio of the foaming liquid volume to the total volume of the mixture. When the r value is between 40-50, the flow value requirements of the intended mixture are basically met for all engineering models.

[0053] In step 4, the bubbles in the foam soil mixture will defoam to varying degrees due to the influence of on-site construction conditions, so the foam dosage in the designed mix ratio needs to be adjusted. Based on the relevant parameters of the on-site construction method, such as the mixer stirring speed, stirring time, on-site filler pumping pressure, layer thickness, etc., the foam dosage of the lightweight soil can be appropriately reduced based on the stirring speed, pumping pressure, fill thickness, etc. The specific correction principle is as follows:

[0054] Every increase or decrease in stirring speed by 95-105 rpm corresponds to a 10% increase or decrease in the amount of foaming liquid used; every increase or decrease in stirring time by 15-25 s corresponds to a 2% increase or decrease in the amount of foaming liquid used; every increase or decrease in pumping pressure by 0.95-1.05 MPa corresponds to a 10% increase or decrease in the amount of foaming liquid used; and every increase or decrease in fill thickness by 0.45-0.55 m corresponds to a 5% increase or decrease in the amount of foaming liquid used. Based on this principle, the amount of foam used is adjusted accordingly. The material mix ratio obtained in step 2 is further modified to obtain the final construction mix ratio.

[0055] This embodiment also includes: constructing an age-mechanical property relationship curve under certain curing conditions and a certain auxiliary cementitious material dosage: Under certain curing conditions and a certain auxiliary cementitious material dosage, the corresponding relationship between five or more pairs of age and the mechanical properties of the foam soil mixture should be obtained from previous actual experiments. The system can use existing mathematical analysis tools such as MATLAB and Origin to perform least squares or polynomial fitting on these five pairs of data to construct a functional correspondence between age and mechanical properties under the curing conditions and the auxiliary cementitious material dosage. Based on the above principle, the age-mechanical property relationship curve can be obtained under different curing conditions and different auxiliary cementitious material dosages.

[0056] For example, the age-compressive strength relationship curve under the curing conditions of 25°C, RH95% and tailings content of 30% is constructed as an example: the user inputs the corresponding relationship between five or more pairs of age and compressive strength under the conditions of 25°C, 95% relative humidity and 30% tailings content (1, 0.15), (3, 0.2), (7, 0.4), (14, 0.6), (28, 1). The five or more pairs of data should be obtained in previous actual experiments. The system can call existing mathematical analysis tools such as MATLAB and Origin to perform least squares or polynomial fitting on the five pairs of data to obtain the fitting curve y=0.03x+0.14(R 2 =0.9916), thus constructing the functional relationship between age and compressive strength under the curing conditions of 30% tailings content, 25°C, and RH95%.

[0057] Based on the curing temperature, humidity and cementitious material ratio provided by the user, the age-mechanical property curve under the corresponding conditions is retrieved. By querying the curve, the corresponding auxiliary cementitious material dosage and the mechanical property value of the corresponding age can be returned.

[0058] For example, based on the user-provided curing temperature, humidity, and cementitious material ratio, the computer retrieves the age-to-mechanical property curve for the corresponding conditions. By querying the curve, the computer can return the mechanical property values ​​for the corresponding supplementary cementitious material dosage and the corresponding age. For example, if the computer queries the 6-day compressive strength at 25°C, 95% relative humidity, and 30% tailings content, the computer will return a compressive strength of 0.32 MPa based on the fitted relationship.

[0059] In this embodiment, the age-mechanical property relationship curve described above can be continuously fitted and adjusted to ensure that the functional relationship conforms to actual conditions. After curing to the desired age, the returned strength value is used to determine whether the designed mix ratio is acceptable. If it does not meet actual requirements, the user can return to step 1 to adjust the material quantities and repeat the trial mixing until the final mixture meets the requirements.

[0060] Example 2

[0061] like Figure 1-Figure 3 As shown, the purpose of this embodiment is to provide a virtual simulation experiment system for preparing foam lightweight soil, the system comprising:

[0062] A design requirement module is configured to construct a first relationship based on the relationship between the construction wet density and the foam lightweight soil mix material parameters, wherein the foam lightweight soil mix material parameters include a water-binder ratio, a foaming liquid bubble volume, and a foaming liquid mass;

[0063] a mix ratio design module for changing the mass of the foaming liquid in the material to be tested based on the parameters of the material to be tested and in combination with the first relationship until the material to be tested meets the construction wet density requirement, thereby obtaining a revised mix ratio of the test material; and determining whether the fluidity requirement is met based on the revised mix ratio of the test material;

[0064] The ratio adjustment module is used to adjust the amount of foaming liquid in the first corrected trial material according to the on-site construction parameters while meeting the fluidity requirements to obtain the final ratio of the trial material.

[0065] In the design requirements module, the system interface provides several engineering categories, including "Backfill of soft foundation bridgehead roadbed", "Extended construction of old roads", "Backfill of pipelines", and "Treatment of fill-cut junction". The specifications used in each engineering mode are already built into the system. The system retrieves the specifications to determine the construction wet density and fluidity requirements of the foam soil mixture that meet the design requirements. For example, if "Backfill of soft foundation bridgehead roadbed" is selected, the system retrieves the specification "Q / CR 758-2020 Technical Specification for Bubble Mixed Lightweight Soil Filling Engineering" and gives the requirement that the design wet density is 600kg / m 3 , the design flow value is 160-190mm.

[0066] This embodiment also includes a material parameter module, which is used to input the apparent density of cement, the apparent density of tailings, the proportion of cement in cementitious materials, the proportion of tailings in cementitious materials, and the foaming ratio of the foaming liquid. The proportion design module uses the various parameters input in the material parameter module.

[0067] In the mix design module, the following are specifically included: density-based design, so the wet density of the mixture can meet the design requirements, and then check whether the flow value meets the requirements, as follows:

[0068]

[0069] Use the above formula to judge whether the construction wet density meets the requirements. If the above formula is true, it meets the requirements; otherwise, it does not meet the requirements.

[0070] Determine whether the flow value meets the requirements according to the following formula:

[0071] Volume of foaming liquid

[0072] In the mix ratio adjustment module, because mixing speed, mixing time, pumping pressure, and fill thickness can affect foam properties, this module stipulates a standard mixing speed of 285±10r / min, a standard mixing time of 5 minutes, a standard pumping pressure of 10MPa, and a standard fill thickness of 1m during foam soil construction. In this module, the user enters actual construction information such as mixing speed, pumping pressure, and fill thickness. The computer determines the bubble defoaming rate by comparing the input information with the standard values, thereby correcting the working mix ratio to ensure that the quality of the foam soil during actual construction is closer to the simulated value. The specific correction principle is as follows: for every 100 r / min increase (or decrease) in stirring speed, the amount of foaming liquid increases (or decreases) by 10%; for every 20 seconds increase (or decrease) in stirring time, the amount of foaming liquid increases (or decreases) by 2%; for every 1 MPa increase (or decrease) in pumping pressure, the amount of foaming liquid increases (or decreases) by 10%; and for every 0.5 m increase (or decrease) in fill thickness, the amount of foaming liquid increases (or decreases) by 5%. Based on this principle, the system adjusts the amount of foam accordingly. After completing this module, the user will obtain a construction mix ratio that meets the actual conditions of the construction site, which will guide the user into the maintenance simulation module.

[0073] In this embodiment, a curing simulation module is also included. The user enters the curing temperature and humidity in this module, and the system retrieves the proportion of each cementitious material (k i After setting the curing conditions, the system guides the user to simulate the curing of the mixture. The curing age is set by the user, saving the time cost of actual experiments. The curing simulation is implemented in the following ways:

[0074] (1) Construction stage. Here, we take the construction of the age-compressive strength relationship curve under the conditions of 25℃, RH95% curing and tailings content of 30% as an example: the user inputs the corresponding relationship between five or more pairs of age and compressive strength under the conditions of 25℃, 95% relative humidity and tailings content of 30% (1, 0.15), (3, 0.2), (7, 0.4), (14, 0.6), (28, 1). The five or more pairs of data should be obtained in previous actual experiments. The system can call existing mathematical analysis tools such as MATLAB and Origin to perform least squares or polynomial fitting on the five pairs of data, and obtain the fitting curve y=0.03x+0.14(R 2 =0.9916), thus constructing the functional relationship between age and compressive strength under the curing conditions of 30% tailings content, 25°C, and RH95%.

[0075] (2) Simulation stage. The system retrieves the age-mechanical property curve under the corresponding conditions according to the curing temperature, humidity and cementitious material ratio input by the user, and returns the mechanical property value of the corresponding auxiliary cementitious material dosage and the corresponding age by querying the curve. For example, if the 6-day compressive strength under the conditions of 25°C, 95% relative humidity and 30% tailings dosage is queried, the computer will return the compressive strength as 0.32MPa according to the fitting relationship. In addition, these function curves can be continuously fitted and adjusted through the "quality maintenance" module to ensure that the function relationship conforms to the actual situation. After curing to the required age, the system determines whether the designed mix ratio can be adopted based on the returned strength value. If it cannot meet the actual needs, the user can still return to the mix ratio design module to adjust the material quantity and repeatedly test mix until the final mixture meets the requirements.

[0076] This embodiment also includes a quality maintenance module. Through the quality maintenance module, based on the data used to input the foam lightweight soil sampling test after actual construction, the other five modules can retrieve these data to provide experience values ​​that are more in line with actual conditions for subsequent designs.

[0077] This embodiment scheme digitizes the foam soil trial mixing process, reduces the trial and error cost in actual construction, and improves the construction efficiency of foam soil; improves the design and trial mixing efficiency of foam lightweight soil mix ratio, making the application of foam lightweight soil more flexible; makes the foam soil design process more process-oriented and intensive, objectively improving the universality of foam soil construction under different working conditions; makes the foam soil design process more convenient, and users only need to complete the design according to the system process guidance, reducing the designer's workload; reduces the material waste of foam soil trial mixing, which is conducive to controlling the cost of foam soil construction.

[0078] Example 3

[0079] The purpose of this embodiment is to provide a computing device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the program.

[0080] Example 4

[0081] The purpose of this embodiment is to provide a computer-readable storage medium.

[0082] A computer-readable storage medium stores a computer program, which, when executed by a processor, performs the steps of the above method.

[0083] The steps involved in the apparatuses of Examples 2, 3, and 4 above correspond to those of Method Example 1. For detailed implementations, please refer to the relevant description of Example 1. The term "computer-readable storage medium" should be understood to mean a single medium or multiple media containing one or more instruction sets; it should also be understood to include any medium capable of storing, encoding, or carrying an instruction set for execution by a processor and causing the processor to perform any method of the present invention.

[0084] Those skilled in the art will appreciate that the modules or steps of the present invention described above can be implemented using a general-purpose computer device. Alternatively, they can be implemented using program code executable by a computing device, which can then be stored in a storage device and executed by the computing device. Alternatively, they can be fabricated into separate integrated circuit modules, or multiple modules or steps can be fabricated into a single integrated circuit module for implementation. The present invention is not limited to any specific combination of hardware and software.

[0085] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without any creative work are still within the scope of protection of the present invention.

Claims

1. A virtual simulation experimental method for preparing foam lightweight soil, characterized in that: The method comprises: Based on the relationship between construction wet density and foam lightweight soil mix material parameters, the first relationship is constructed; specifically: A first sub-relationship is constructed based on the water-to-gel ratio and the density-mass relationship between water and gel materials; wherein the density of the gel material is determined by the ratio of each gel material and the density of the corresponding gel material; According to the relationship between the density and expansion ratio of the foaming liquid and the volume of the foaming liquid bubbles, a second sub-relationship is constructed; Combining the first sub-relationship and the second sub-relationship, a first relational expression is constructed for the relationship between water mass, cementitious material mass, foaming liquid mass, foaming liquid bubble volume, and construction wet density; The foam lightweight soil mix material parameters include water-binder ratio, foaming liquid bubble volume and foaming liquid mass; Based on the parameters of the material to be tested and in combination with the first relationship, the mass of the foaming liquid in the material to be tested is changed until the material to be tested meets the construction wet density requirement, thereby obtaining a revised mix ratio of the test material; According to the revised trial material ratio, determine whether the fluidity requirements are met; If the fluidity requirements are met, the amount of foaming liquid in the first revised trial mix is ​​adjusted according to the on-site construction parameters to obtain the final trial mix ratio; Construct an age-mechanical property relationship curve under different auxiliary cementitious material dosages under curing conditions; according to the curing conditions, humidity and the proportion of cementitious materials in the final trial material mix ratio, call the constructed age-mechanical property relationship curve to obtain the corresponding auxiliary cementitious material dosage and the mechanical property value at the corresponding age.

2. A virtual simulation experimental method for preparing foam lightweight soil according to claim 1, characterized in that: Whether the fluidity requirement is met is determined by the ratio of the water-binder ratio to the volume fraction of the foaming liquid in the first corrected trial material.

3. The virtual simulation experimental method for preparing foam lightweight soil according to claim 1, characterized in that: If the fluidity requirements are met, adjust the amount of foaming liquid in the first revised test material according to the on-site construction parameters, specifically: During on-site construction, if the stirring speed increases or decreases by 95r / min-105r / min, the amount of foaming liquid will increase or decrease by 10% accordingly; If the stirring time increases or decreases by 15s-25s, the amount of foaming liquid should be increased or decreased by 2% accordingly; If the pumping pressure increases or decreases by 0.95MPa-1.05MPa, the amount of foaming liquid will increase or decrease by 10% accordingly; If the filling thickness increases or decreases by 0.45m-0.55m, the amount of foaming liquid will increase or decrease by 5% accordingly.

4. A virtual simulation experimental method for preparing foam lightweight soil according to claim 1 or 2, characterized in that: The liquidity requirement range is 40-50.

5. The virtual simulation experimental method for preparing foam lightweight soil according to claim 1, characterized in that: Different engineering modes correspond to different construction wet density requirements.

6. A virtual simulation experimental system for preparing foam lightweight soil, characterized in that: The system comprises: The design requirement module is used to construct the first relationship based on the relationship between the construction wet density and the foam lightweight soil mix material parameters; specifically: A first sub-relationship is constructed based on the water-to-gel ratio and the density-mass relationship between water and gel materials; wherein the density of the gel material is determined by the ratio of each gel material and the density of the corresponding gel material; According to the relationship between the density and expansion ratio of the foaming liquid and the volume of the foaming liquid bubbles, a second sub-relationship is constructed; Combining the first sub-relationship and the second sub-relationship, a first relational expression is constructed for the relationship between water mass, cementitious material mass, foaming liquid mass, and foaming liquid bubble volume, and construction wet density; wherein the foam lightweight soil mix material parameters include water-binder ratio, foaming liquid bubble volume, and foaming liquid mass; a mix ratio design module for changing the mass of the foaming liquid in the material to be tested based on the parameters of the material to be tested and in combination with the first relationship until the material to be tested meets the construction wet density requirement, thereby obtaining a revised mix ratio of the test material; and determining whether the fluidity requirement is met based on the revised mix ratio of the test material; A mix ratio adjustment module is used to adjust the amount of foaming liquid in the first corrected trial mix material according to on-site construction parameters while meeting the fluidity requirements to obtain the final mix ratio of the trial mix material; Construct an age-mechanical property relationship curve under different auxiliary cementitious material dosages under curing conditions; according to the curing conditions, humidity and the proportion of cementitious materials in the final trial material mix ratio, call the constructed age-mechanical property relationship curve to obtain the corresponding auxiliary cementitious material dosage and the mechanical property value at the corresponding age.

7. A computer device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the computer device is running, the processor and the memory communicate via the bus, and when the machine-readable instructions are executed by the processor, a virtual simulation experimental method for preparing foam lightweight soil according to any one of claims 1 to 5 is performed.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is run by a processor, the virtual simulation experimental method for preparing foam lightweight soil according to any one of claims 1 to 5 is executed.

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