Virtual simulation experiment method and system for foam light soil preparation

Abstract

According to the virtual simulation experiment method and system for foam light soil preparation, the foam light soil preparation process is informationized, whether the construction wet density requirement is met or not is judged according to related information of a material to be subjected to trial preparation by constructing a first relational expression of the relation between the construction wet density and foam light soil proportioning material parameters, and then the foam light soil proportioning material parameters are judged according to the first relational expression. If not, adjusting the mass of the foaming liquid in the to-be-prepared material until the construction wet density is met; and then judging the flowability, and after the flowability requirement is met, adjusting the corrected mix proportion of the trial mixing material again based on the actual site construction condition to obtain the final mix proportion of the trial mixing material. The whole trial and match process does not need actual trial and match operation, time required by trial and match experiments is greatly shortened, material waste is avoided, and trial and match cost is reduced.

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] Foamed lightweight soil is a green material made by mixing cementitious material slurry and foam. It has the advantages of adjustable strength, convenient 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 introduced bubbles is uneven. Therefore, most of the foamed lightweight soil on the market is made by the physical method of mixing the prepared foam into the cementitious material slurry. Foamed 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 stability of the quality of the foamed 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 deficiencies of the above-mentioned prior art, the present invention provides a virtual simulation experimental method and system for the preparation of foam lightweight soil. The entire trial mixing process does not require actual trial mixing operations, which greatly reduces the time required for the trial mixing experiment, avoids material waste, and reduces the trial mixing cost.

[0006] To achieve the above 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 water-binder ratio, foaming liquid bubble volume and foaming liquid mass;

[0008] Based on the parameters of the materials to be tested and in combination with the first relationship, the mass of the foaming liquid in the materials to be tested is changed until the materials to be tested meet the construction wet density requirements, thereby obtaining a corrected mix ratio of the tested materials;

[0009] According to the revised proportion of the trial materials, determine whether the fluidity requirements are met;

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

[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 used 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 is used to change 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 judging whether the fluidity requirement is met according to the revised mix ratio of the test material;

[0014] The proportion 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 proportion of the trial material.

[0015] The 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, 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 is executed.

[0016] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, and 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 informatized, and by constructing the first relationship between the construction wet density and the foam lightweight soil ratio material parameters, it is judged whether the construction wet density requirement is met according to the relevant information of the material to be trial-matched, and when it is not met, the mass of the foaming liquid in the material to be trial-matched is adjusted until the construction wet density is met; then the fluidity is judged, and after the fluidity requirement is met, the corrected trial material ratio is adjusted again based on the actual on-site construction conditions to obtain the final trial material ratio. The entire trial matching process does not require actual trial matching operations, which greatly reduces the time required for the trial matching experiment, avoids material waste, and reduces the trial matching cost.

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

[0020] The accompanying drawings in the specification, 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 A block diagram of a virtual simulation experiment system for preparing foam lightweight soil in the second embodiment of the present invention;

[0022] Figure 2 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 the second embodiment of the present invention. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those 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 specific embodiments only and are not intended to be limiting of exemplary embodiments according to the present invention.

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

[0027] Embodiment 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 water-binder ratio, foaming liquid bubble volume and foaming liquid mass;

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

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

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

[0033] In this embodiment, the foam lightweight soil preparation process is informatized, and the first relationship between the construction wet density and the foam lightweight soil mix material parameters is constructed. According to the relevant information of the material to be trial-mixed, it is judged whether the construction wet density requirement is met. If it is not met, the mass of the foaming liquid in the material to be trial-mixed is adjusted until the construction wet density is met; then the fluidity is judged, and after the fluidity requirement is met, the corrected trial material mix ratio is adjusted again based on the actual on-site construction conditions to obtain the final trial material mix ratio. The entire trial mixing process does not require actual trial mixing operations, which greatly reduces the time required for the trial mixing experiment, avoids material waste, and reduces the trial mixing cost.

[0034] The following is a detailed description of a 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 of foam soil mixture. According to the determined engineering mode, the target construction wet density and fluidity requirements are obtained. Among them, the engineering mode includes soft foundation bridgehead roadbed backfill, old road reconstruction and expansion, pipeline backfill, fill-cut junction treatment, etc.

[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 the mixture is composed 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 irepresents 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, formula (4) is used to determine whether the construction wet density requirements are met. If the requirements are not met, the mass of the foaming liquid 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 for construction 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 the foamed soil mainly depends on these two factors. The parameter r is defined as follows:

[0051]

[0052] Wherein, w / b is the water-binder ratio; V% is the volume fraction of the foaming liquid, that is, the ratio of the volume of the foaming liquid to the total volume of the mixture. When the r value is between 40-50, it basically meets the flow value requirements of the intended mixture in all engineering modes.

[0053] In step 4, affected by the on-site construction conditions, the bubbles in the foam soil mixture will produce different degrees of defoaming, so it is necessary to make certain adjustments to the foam dosage of the designed mix ratio. According to the relevant parameters of the on-site construction method, such as the stirring speed of the mixer, stirring time, the pumping pressure of the on-site filler, the layer thickness, etc., the foam dosage of the lightweight soil can be appropriately reduced according to the stirring speed, pumping pressure, filling thickness, etc. The specific correction principle is as follows:

[0054] For every increase or decrease of 95r / min-105r / min in stirring speed, the amount of foaming liquid will be increased or decreased by 10%; for every increase or decrease of 15s-25s in stirring time, the amount of foaming liquid will be increased or decreased by 2%; for every increase or decrease of 0.95MPa-1.05MPa in pumping pressure, the amount of foaming liquid will be increased or decreased by 10%; for every increase or decrease of 0.45m-0.55m in filling thickness, the amount of foaming liquid will be increased or decreased by 5%. Based on this principle, the amount of foam is increased or decreased accordingly. The material mix ratio obtained in step 2 is further modified to obtain the final construction mix ratio.

[0055] In this embodiment, it also includes: constructing an age-mechanical property relationship curve 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 under certain curing conditions and a certain auxiliary cementitious material dosage. 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 construct the functional corresponding relationship 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 under different curing conditions and different auxiliary cementitious material dosages can be obtained.

[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 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 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 dosage, 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, the age-mechanical property curve under the corresponding conditions is retrieved according to the curing temperature, humidity and cementitious material ratio provided by the user, and the mechanical property value of the corresponding auxiliary cementitious material dosage and the corresponding age can be returned 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 compressive strength returned by the computer according to the fitting relationship is 0.32MPa.

[0059] In this embodiment, the above-mentioned age-mechanical property relationship curve can be continuously fitted and adjusted to ensure that the functional relationship conforms to the actual situation. After curing to the required age, it is determined whether the designed mix ratio can be adopted according to the returned strength value. If it cannot meet the actual needs, the user can still return to step 1 to adjust the material quantity and repeatedly test mix until the final mixture meets the requirements.

[0060] Embodiment 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 used 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 is used to change 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 judging whether the fluidity requirement is met according to the revised mix ratio of the test material;

[0064] The proportion 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 proportion of the trial material.

[0065] In the design requirements module, the system interface provides several engineering categories, including "Backfill of soft foundation bridgehead roadbed", "Reconstruction and expansion of old roads", "Backfill of pipelines", and "Treatment of fill-excavation junction". The specifications used in each engineering mode have been built into the system. The system retrieves the specifications to determine the construction wet density that meets the design requirements and the fluidity requirements of the foam soil mixture. For example, if "Backfill of soft foundation bridgehead roadbed" is selected, the system retrieves the specification "Q / CR 758-2020 Technical Code 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, it specifically includes: design based on density, 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] According to the above formula, it is judged whether the construction wet density meets the requirements. If the above formula is established, it is satisfied, otherwise it is not satisfied;

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

[0071] Volume of foaming liquid

[0072] In the proportion adjustment module, since the mixing speed, mixing time, pumping pressure and filling thickness will affect the properties of the foam, this module stipulates the standard mixing speed of 285±10r / min, the standard mixing time of 5min, the standard pumping pressure of 10MPa, and the standard filling thickness of 1m during the construction of foam soil. In this module, the user inputs the actual construction information such as mixing speed, pumping pressure, filling thickness, etc. The computer determines the defoaming rate of the bubbles by comparing the input information with the standard value, thereby correcting the working condition mix ratio to ensure that the quality of the foam soil during actual construction is closer to the simulation value. The specific correction principle is as follows: for every increase (or decrease) of 100r / min in stirring speed, the amount of foaming liquid will increase (or decrease) by 10%; for every increase (or decrease) of 20s in stirring time, the amount of foaming liquid will increase (or decrease) by 2%; for every increase (or decrease) of 1MPa in pumping pressure, the amount of foaming liquid will increase (or decrease) by 10%; for every increase (or decrease) of 0.5m in filling thickness, the amount of foaming liquid will increase (or decrease) by 5%. In view of this principle, the system increases or decreases the amount of foam accordingly. After the module is completed, the user will get the construction mix ratio that meets the actual environment of the construction site, and guide the user to enter 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 the actual experiment. 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 curing conditions of 25°C, RH95% 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°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 dosage, 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 proportion of cementitious materials 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 compressive strength returned by the computer is 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 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] The scheme of this embodiment makes the foam soil trial mixing process informationized, 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, and makes the application of foam lightweight soil more flexible; makes the foam soil design process more process-oriented and intensive, and objectively improves 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 workload of designers; reduces the material waste of foam soil trial mixing, which is conducive to controlling the cost of foam soil construction.

[0078] Embodiment 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 steps of the above method are implemented when the processor executes the program.

[0080] Embodiment 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 executes the steps of the above method when executed by a processor.

[0083] The steps involved in the apparatuses of the above embodiments 2, 3 and 4 correspond to the method embodiment 1, and the specific implementation methods can refer to the relevant description part of embodiment 1. The term "computer-readable storage medium" should be understood as a single medium or multiple media including one or more instruction sets; it should also be understood to include any medium that can store, encode or carry an instruction set for execution by a processor and enable the processor to execute any method in the present invention.

[0084] Those skilled in the art should understand that the modules or steps of the present invention described above can be implemented by a general-purpose computer device, or alternatively, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made 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 implementation mode 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 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 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 water-binder ratio, foaming liquid bubble volume and foaming liquid mass; Based on the parameters of the materials to be tested and in combination with the first relationship, the mass of the foaming liquid in the materials to be tested is changed until the materials to be tested meet the construction wet density requirements, thereby obtaining a corrected mix ratio of the tested materials; According to the revised test material ratio, determine whether the fluidity requirements are met; If the fluidity requirements are met, the amount of foaming liquid in the first corrected trial mix material is adjusted according to the on-site construction parameters to obtain the final mix ratio of the trial mix material.

2. A virtual simulation experimental method for preparing foam lightweight soil as claimed in claim 1, characterized in that: Based on the relationship between the construction wet density and the foam lightweight soil mix material parameters, the first relationship is constructed, which is: According to the water-to-gel ratio and the density-mass relationship between water and gel material, a first sub-relationship is constructed; wherein the density of the gel material is determined by the proportion 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 bubbles in the foaming liquid, a second sub-relationship is constructed; By combining the first sub-relationship and the second sub-relationship, a first relational expression of the relationship among the water mass, the cementitious material mass, the foaming liquid mass and the foaming liquid bubble volume and the construction wet density is constructed.

3. A virtual simulation experimental method for preparing foam lightweight soil as claimed in 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.

4. A virtual simulation experimental method for preparing foam lightweight soil according to claim 1, characterized in that: If the fluidity requirements are met, the amount of foaming liquid in the first revised test material is adjusted 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 will increase or decrease 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.

5. A virtual simulation experimental method for preparing foam lightweight soil according to claim 1, characterized in that: Also includes: Construct the relationship curve between age and mechanical properties under different dosages of auxiliary cementitious materials under curing conditions; According to the curing conditions, humidity and the proportion of cementitious materials in the final trial material mix, the constructed age-mechanical property relationship curve is called to obtain the corresponding auxiliary cementitious material dosage and the mechanical property value at the corresponding age.

6. A virtual simulation experimental method for preparing foam lightweight soil as claimed in claim 1 or 3, characterized in that: The liquidity requirement range is 40-50.

7. A virtual simulation experimental method for preparing foam lightweight soil as claimed in claim 1, characterized in that: Different engineering modes correspond to different construction wet density requirements.

8. A virtual simulation experimental system for preparing foam lightweight soil, characterized in that: The system comprises: A design requirement module is used 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; A mix ratio design module is used to change 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 judging whether the fluidity requirement is met according to the revised mix ratio of the test material; The proportion 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 proportion of the trial material.

9. 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 as described in any one of claims 1 to 7 is executed.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the virtual simulation experimental method for preparing foam lightweight soil according to any one of claims 1 to 7 is executed.

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