A method and device for measuring deformation modulus of soft clay

By combining the self-drilling lateral pressure test and the spiral plate load test with the shear modulus conversion formula, the problems of complex deformation modulus measurement process and insufficient accuracy of soft clay were solved, and efficient and accurate deformation modulus measurement was achieved.

CN116929922BActive Publication Date: 2025-09-30CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD
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Patent Information

Application Number
CN202310774683.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-27
Publication Date
2025-09-30
Estimated Expiration
2043-06-27

AI Technical Summary

Technical Problem

The existing method for measuring the deformation modulus of soft clay is complex and difficult to guarantee accuracy, making it impossible to effectively obtain important parameters.

Method used

Self-drilling lateral pressure test and spiral plate load test were adopted. Combined with the conversion formula of shear modulus and elastic modulus, the deformation modulus measurement formula was established through data fitting, and the deformation modulus was calculated using the initial shear modulus.

Benefits of technology

The efficiency and accuracy of obtaining deformation modulus are improved, the measurement process is simplified, and the accuracy of measurement is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a method and device for measuring the deformation modulus of soft clay, belonging to the field of geotechnical engineering measurement technology. The method comprises: obtaining the initial shear modulus and deformation modulus of the soft clay at each test point in a first state; based on the initial shear modulus of each test point, obtaining the elastic modulus of each test point using a conversion formula between the shear modulus and the elastic modulus; performing data fitting on the deformation modulus and the elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and the elastic modulus in the first state; and determining a measurement formula for obtaining the deformation modulus using the initial shear modulus using the conversion formula and the first fitting relationship. The present invention establishes a measurement formula for obtaining the deformation modulus from the initial shear modulus of soft clay by conducting a load test and a self-drilling lateral pressure test, providing a measurement method for obtaining the deformation modulus using a self-drilling lateral pressure test, which can improve the efficiency and accuracy of obtaining the deformation modulus.
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Description

Technical Field

[0001] The present invention relates to the technical field of geotechnical engineering measurement, and in particular to a method and device for measuring the deformation modulus of soft clay. Background Art

[0002] As a geological material, soft clay has low strength and low natural bearing capacity of its foundation. When the overlying load on the foundation is too large, the cumulative deformation of the foundation will gradually increase.

[0003] The deformation modulus of soft clay is also an important parameter required for investigation and design, but an effective testing method for obtaining the deformation modulus has not yet been developed.

[0004] At present, load tests or indoor tests are often used to obtain deformation modulus, but the test process is complicated, the soil is greatly disturbed, and its accuracy is difficult to guarantee. Summary of the Invention

[0005] The present invention provides a method and device for measuring the deformation modulus of soft clay, which are used to solve the defects of the existing deformation modulus measurement method, such as complex process and difficulty in ensuring accuracy.

[0006] In a first aspect, the present invention provides a method for measuring the deformation modulus of soft clay, comprising: obtaining the initial shear modulus and deformation modulus of the soft clay at each test point in a first state; wherein the initial shear modulus is determined in the elastic stage of a lateral pressure test curve, and the deformation modulus is determined using a slow method based on a spiral plate load test of the soft clay; based on the initial shear modulus of each test point, the elastic modulus of each test point is obtained using a conversion formula between the shear modulus and the elastic modulus; data fitting is performed on the deformation modulus and the elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and the elastic modulus in the first state; and using the conversion formula and the first fitting relationship, a measurement formula for obtaining the deformation modulus using the initial shear modulus is determined.

[0007] The present invention provides a method for measuring the deformation modulus of soft clay, which also includes: performing data fitting on the deformation modulus and the target elastic modulus of each test point to obtain a second fitting relationship between the deformation modulus and the target elastic modulus in a second state; the target elastic modulus is the elastic modulus when the shear strain reaches 0.5%; and using the conversion formula and the second fitting relationship to determine a measurement formula for calculating the deformation modulus using the initial shear modulus.

[0008] The present invention provides a method for measuring the deformation modulus of soft clay, wherein a lateral pressure test curve is obtained by using a self-drilling lateral pressure test.

[0009] The present invention provides a method for measuring the deformation modulus of soft clay, which determines the initial shear modulus in the elastic stage of the lateral pressure test curve, specifically including:

[0010]

[0011]

[0012] Among them, G i is the initial shear modulus; P is the radial pressure exerted by the piezometer on the soil; σ0 is the initial static lateral pressure of the soil; ε c is the circumferential strain of the soil on the hole wall; a0 is the initial radius of the piezometer expansion membrane; a is the radius of the piezometer expansion membrane.

[0013] The present invention provides a method for measuring the deformation modulus of soft clay, which uses a slow method to determine the deformation modulus based on a spiral plate load test of soft clay, including:

[0014] E0=ωI1I2(1-v 2 )bP f / S f ;

[0015] I1=0.5+0.23b / z;

[0016] I2=1+2v 2 +2v 4 ;

[0017] Where E0 is the deformation modulus, I1 is the correction coefficient for the buried depth of the spiral plate; I2 is the correction coefficient for the Poisson's ratio; b is the diameter of the spiral plate; z is the buried depth of the spiral plate; ω is the shape coefficient of the spiral plate; v is the Poisson's ratio of soft clay; S f Corresponding to the critical plastic pressure P f The sedimentation value.

[0018] The present invention provides a method for measuring the deformation modulus of soft clay, wherein the conversion formula between the shear modulus and the elastic modulus is specifically as follows:

[0019] E = 2G(1+v);

[0020] Where E is the elastic modulus, G is the shear modulus, and ν is the Poisson's ratio of soft clay.

[0021] The present invention provides a method for measuring the deformation modulus of soft clay, performing data fitting on the deformation modulus and elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and the elastic modulus in a first state, specifically:

[0022] E0=λ1E i ;

[0023] Among them, E0 is the deformation modulus, E i is the elastic modulus corresponding to the first state, and λ1 is the correction coefficient corresponding to the first state.

[0024] The present invention provides a method for measuring the deformation modulus of soft clay, which performs data fitting on the deformation modulus of each test point and the target elastic modulus to obtain a second fitting relationship between the deformation modulus in a second state and the target elastic modulus, including:

[0025] E0=λ2E 0.5% ;

[0026] Among them, E0 is the deformation modulus, E 0.5% is the target elastic modulus corresponding to the second state, and λ2 is the correction coefficient corresponding to the second state.

[0027] In a second aspect, the present invention further provides a deformation modulus measuring device for soft clay, comprising:

[0028] an acquisition module for acquiring an initial shear modulus and a deformation modulus of the soft clay at each test point in a first state; wherein the initial shear modulus is determined in the elastic phase of the lateral pressure test curve, and the deformation modulus is determined using a slow method based on a spiral plate load test of the soft clay;

[0029] A conversion module is used to obtain the elastic modulus of each test point based on the initial shear modulus of each test point and using a conversion formula between shear modulus and elastic modulus;

[0030] a fitting module, configured to perform data fitting on the deformation modulus and elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and the elastic modulus in a first state;

[0031] The measurement module is used to determine a measurement formula for obtaining the deformation modulus using the initial shear modulus by using the conversion formula and the first fitting relationship.

[0032] In a third aspect, the present invention provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of any of the above-described methods for measuring the deformation modulus of soft clay are implemented.

[0033] In a fourth aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above-described methods for measuring the deformation modulus of soft clay.

[0034] The present invention provides a method and device for measuring the deformation modulus of soft clay. By conducting load tests and self-drilling lateral pressure tests, a measurement formula for obtaining the deformation modulus of soft clay from its initial shear modulus is established. This provides a method for obtaining the deformation modulus using the self-drilling lateral pressure test, which can improve the efficiency and accuracy of obtaining the deformation modulus. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 This is one of the flow charts of the method for measuring the deformation modulus of soft clay provided by the present invention;

[0037] Figure 2 is a schematic diagram of a first fitting relationship provided by the present invention;

[0038] Figure 3 This is the second flow chart of the method for measuring the deformation modulus of soft clay provided by the present invention;

[0039] Figure 4 is a schematic diagram of a second fitting relationship provided by the present invention;

[0040] Figure 5 Schematic diagram of the structure of the deformation modulus measuring device for soft clay provided by the present invention;

[0041] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0043] It should be noted that, in the description of the embodiments of the present invention, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0044] The terms "first," "second," and the like in this application are used to distinguish similar objects, and are not used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in orders other than those illustrated or described herein. Furthermore, the objects distinguished by "first," "second," and the like generally refer to a class of objects and do not limit the number of objects. For example, the first object may be one or more.

[0045] The following combination Figures 1-6 The present invention provides a method and device for measuring the deformation modulus of soft clay.

[0046] Figure 1 This is one of the flow charts of the method for measuring the deformation modulus of soft clay provided by the present invention, such as Figure 1 As shown, including but not limited to the following steps:

[0047] Step 101: Obtain the initial shear modulus and deformation modulus of the soft clay at each test point in the first state.

[0048] The initial shear modulus is determined in the elastic stage of the lateral pressure test curve, and the deformation modulus is determined by a slow method based on a spiral plate load test on soft clay.

[0049] Specifically, a self-drilling lateral pressure test was carried out to obtain the total pressure-radial strain curve of soft clay and determine the initial shear modulus G in the elastic stage (in the first state) of the lateral pressure curve. i , specifically:

[0050]

[0051]

[0052] Among them, G i is the initial shear modulus; P is the radial pressure exerted by the piezometer on the soil; σ0 is the initial static lateral pressure of the soil; ε c is the circumferential strain of the soil on the hole wall; a0 is the initial radius of the piezometer expansion membrane; a is the radius of the piezometer expansion membrane.

[0053] Alternatively, the deformation modulus can be determined using a slow method based on a spiral plate loading test on soft clays, including:

[0054] E0=ωI1I2(1-v 2 )bP f / S f ;

[0055] I1=0.5+0.23b / z;

[0056] I2=1+2ν2 +2v 4 ;

[0057] Where E0 is the deformation modulus, I1 is the correction coefficient for the buried depth of the spiral plate; I2 is the correction coefficient for the Poisson's ratio; b is the diameter of the spiral plate, in m; z is the buried depth of the spiral plate, in m; ω is the shape coefficient of the spiral plate, which is 0.79 for a circle; v is the Poisson's ratio of soft clay; S f Corresponding to the critical plastic pressure P f The settlement value is in mm.

[0058] Step 102: Based on the initial shear modulus of each test point, the elastic modulus of each test point is obtained using a conversion formula between shear modulus and elastic modulus.

[0059] Specifically, according to the theory of elastic mechanics, the conversion formula between shear modulus and elastic modulus is introduced, and the calculation formula is as follows:

[0060] E = 2G(1+ν);

[0061] Where E is the elastic modulus, G is the shear modulus, and ν is the Poisson's ratio of soft clay, which can be taken as 0.38.

[0062] Step 103: performing data fitting on the deformation modulus and elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and the elastic modulus in the first state;

[0063] In the elastic phase of the lateral pressure curve, the initial shear modulus of each test point corresponding to the spiral plate load test is obtained, and then the elastic modulus of each test point is obtained from step 102. In order to study the difference between the deformation modulus E0 obtained by the spiral plate load test and the elastic modulus E obtained in the elastic deformation phase of the soil around the lateral pressure instrument of the self-drilling lateral pressure test, i The first fitting relationship between . Figure 2 Schematic diagram of the first fitting relationship provided by the present invention. As shown in the figure, an empirical formula for converting the deformation modulus into the elastic modulus can be determined.

[0064] Optionally, let E i The correction coefficient between E0 and E0 is λ1. After introducing the assumption that the soil is a nonlinear elastic-ideal plastic material for analysis, the first fitting relationship between the deformation modulus and the elastic modulus in the first state is obtained, specifically:

[0065] E0=λ1E i ;

[0066] Among them, E0 is the deformation modulus, E i is the elastic modulus corresponding to the first state, and λ1 is the correction coefficient corresponding to the first state.

[0067] Step 104: using the conversion formula and the first fitting relationship, determine a measurement formula for obtaining the deformation modulus using the initial shear modulus.

[0068] From the conversion formula in step 102 above, we can see that E i =λ12G i (1+v), then the measurement formula is:

[0069] E0=λ12G i (1+v).

[0070] for Figure 2 The corresponding correction coefficient is used to obtain the initial shear modulus G in the elastic stage (first state) of the lateral pressure test curve. i , where λ1 can be 0.5094.

[0071] Based on the content of the above embodiment, as an optional embodiment, Figure 3 This is a second flow chart of the method for measuring the deformation modulus of soft clay provided by the present invention, such as Figure 3 As shown, the method for measuring the deformation modulus of soft clay further includes:

[0072] Step 301: performing data fitting on the deformation modulus and the target elastic modulus of each test point to obtain a second fitting relationship between the deformation modulus and the target elastic modulus in a second state;

[0073] The target elastic modulus is the elastic modulus when the shear strain reaches 0.5%. Figure 4 is a schematic diagram of the second fitting relationship provided by the present invention, such as Figure 4 As shown in the figure, the empirical formula for converting the deformation modulus into the target elastic modulus can be determined.

[0074] The specific empirical formula is:

[0075] E0=λ2E 0.5%

[0076] Among them, E0 is the deformation modulus, E 0.5% is the target elastic modulus corresponding to the second state, and λ2 is the correction coefficient corresponding to the second state.

[0077] Step 302: Using the conversion formula and the second fitting relationship, determine a measurement formula for obtaining the deformation modulus using the initial shear modulus. Specifically:

[0078] E0=λ22G s (1+v)

[0079] Among them, G s is the initial shear modulus obtained from the first hysteresis loop of the lateral pressure test curve; Figure 4 The corresponding correction coefficient λ2 can be 0.6405.

[0080] In summary, the deformation modulus measurement method for soft clay provided by the present invention establishes a measurement formula for obtaining the deformation modulus from the initial shear modulus of soft clay by conducting load tests and self-drilling lateral pressure tests. This provides a measurement method for obtaining the deformation modulus using the self-drilling lateral pressure test, which can improve the efficiency and accuracy of obtaining the deformation modulus.

[0081] Figure 5 Schematic diagram of the structure of the deformation modulus measuring device for soft clay provided by the present invention, as shown in FIG. Figure 5 As shown, the device includes: an acquisition module 501 , a conversion module 502 , a fitting module 503 and a measurement module 504 .

[0082] The acquisition module 501 is used to obtain the initial shear modulus and deformation modulus of the soft clay at each test point in the first state.

[0083] The initial shear modulus is determined in the elastic stage of the lateral pressure test curve, and the deformation modulus is determined by a slow method based on a spiral plate load test on soft clay.

[0084] The conversion module 502 is configured to obtain the elastic modulus of each test point based on the initial shear modulus of each test point by using a conversion formula between shear modulus and elastic modulus.

[0085] The fitting module 503 is configured to perform data fitting on the deformation modulus and elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and elastic modulus in a first state.

[0086] The measurement module 504 is configured to determine a measurement formula for obtaining a deformation modulus using an initial shear modulus by using the conversion formula and the first fitting relationship.

[0087] It should be noted that the deformation modulus measuring device for soft clay provided in the embodiment of the present invention can execute the deformation modulus measuring method for soft clay described in any of the above embodiments during specific operation, which will not be described in detail in this embodiment.

[0088] Figure 6 Schematic diagram of the structure of the electronic device provided by the present invention, such as Figure 6As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630, and a communication bus 640, wherein the processor 610, the communication interface 620, and the memory 630 communicate with each other via the communication bus 640. The processor 610 may call logic instructions in the memory 630 to execute a method for measuring the deformation modulus of soft clay, the method comprising: obtaining the initial shear modulus and deformation modulus of the soft clay at each test point in a first state; wherein the initial shear modulus is determined in the elastic phase of the lateral pressure test curve, and the deformation modulus is determined using a slow method based on a spiral plate load test of the soft clay; based on the initial shear modulus of each test point, the elastic modulus of each test point is obtained using a conversion formula between the shear modulus and the elastic modulus; data fitting is performed on the deformation modulus and the elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and the elastic modulus in the first state; and using the conversion formula and the first fitting relationship, a measurement formula for calculating the deformation modulus using the initial shear modulus is determined.

[0089] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0090] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the deformation modulus measurement method of soft clay provided by the above embodiments, the method including: obtaining the initial shear modulus and deformation modulus of the soft clay at each test point in a first state; wherein the initial shear modulus is determined in the elastic stage of the lateral pressure test curve, and the deformation modulus is determined using a slow method based on a spiral plate load test of the soft clay; based on the initial shear modulus of each test point, the elastic modulus of each test point is obtained using a conversion formula between shear modulus and elastic modulus; data fitting is performed on the deformation modulus and elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and the elastic modulus in the first state; and using the conversion formula and the first fitting relationship, a measurement formula for obtaining the deformation modulus using the initial shear modulus is determined.

[0091] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the deformation modulus measurement method for soft clay provided in the above-mentioned embodiments, the method comprising: obtaining the initial shear modulus and deformation modulus of the soft clay at each test point in a first state; wherein the initial shear modulus is determined in the elastic stage of the lateral pressure test curve, and the deformation modulus is determined using a slow method based on a spiral plate load test of the soft clay; based on the initial shear modulus of each test point, the elastic modulus of each test point is obtained using a conversion formula between the shear modulus and the elastic modulus; data fitting is performed on the deformation modulus and the elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and the elastic modulus in the first state; and using the conversion formula and the first fitting relationship, a measurement formula for obtaining the deformation modulus using the initial shear modulus is determined.

[0092] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0093] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for measuring the deformation modulus of soft clay, characterized in that: include: Obtaining the initial shear modulus and deformation modulus of the soft clay at each test point in the first state; wherein the initial shear modulus is determined in the elastic phase of the lateral pressure test curve, and the deformation modulus is determined using a slow method based on a spiral plate load test of the soft clay; Based on the initial shear modulus of each test point, the elastic modulus of each test point is obtained using the conversion formula between shear modulus and elastic modulus; Performing data fitting on the deformation modulus and elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and the elastic modulus in a first state; Determining a measurement formula for obtaining a deformation modulus using an initial shear modulus using the conversion formula and the first fitting relationship; Among them, the initial shear modulus determined in the elastic stage of the lateral pressure test curve includes: ; ; in, is the initial shear modulus; P is the radial pressure exerted by the piezometer on the soil; is the initial static lateral pressure of the soil; is the circumferential strain of the soil on the hole wall; is the initial radius of the expansion membrane of the lateral pressure gauge; is the expansion membrane radius of the lateral pressure gauge.

2. The method for measuring the deformation modulus of soft clay according to claim 1, wherein: Also includes: Performing data fitting on the deformation modulus and the target elastic modulus of each test point to obtain a second fitting relationship between the deformation modulus and the target elastic modulus in the second state; The target elastic modulus is the elastic modulus when the shear strain reaches 0.5%; The conversion formula and the second fitting relationship are used to determine a measurement formula for obtaining the deformation modulus using the initial shear modulus.

3. The method for measuring the deformation modulus of soft clay according to claim 1, wherein: in, The lateral pressure test curve is obtained by using a self-drilling lateral pressure test.

4. The method for measuring the deformation modulus of soft clay according to claim 1, wherein: Based on the spiral plate loading test on soft clay, the deformation modulus is determined using the slow method, including: ; ; ; in, is the deformation modulus, is the correction factor for the buried depth of the spiral plate; is the correction factor of Poisson’s ratio; b is the diameter of the spiral plate; z is the burial depth of the spiral plate; is the shape factor of the spiral plate; is the Poisson's ratio of soft clay; To correspond to the critical pressure The sedimentation value.

5. The method for measuring the deformation modulus of soft clay according to claim 1, wherein: in, The conversion formula between shear modulus and elastic modulus is as follows: ; in, is the elastic modulus, is the shear modulus, is the Poisson's ratio of soft clay.

6. The method for measuring the deformation modulus of soft clay according to claim 2, wherein: The deformation modulus and elastic modulus of each test point are fitted to obtain a first fitting relationship between the deformation modulus and the elastic modulus in the first state, specifically: ; in, is the deformation modulus, is the elastic modulus corresponding to the first state, is the correction coefficient corresponding to the first state.

7. The method for measuring the deformation modulus of soft clay according to claim 2, wherein: Data fitting is performed on the deformation modulus and the target elastic modulus of each test point to obtain a second fitting relationship between the deformation modulus and the target elastic modulus in the second state, specifically: ; in, is the deformation modulus, is the target elastic modulus corresponding to the second state, is the correction coefficient corresponding to the second state.

8. A deformation modulus measuring device for soft clay, characterized in that: The method for measuring the deformation modulus of soft clay according to any one of claims 1 to 7 comprises: an acquisition module for acquiring an initial shear modulus and a deformation modulus of the soft clay at each test point in a first state; wherein the initial shear modulus is determined in the elastic phase of the lateral pressure test curve, and the deformation modulus is determined using a slow method based on a spiral plate load test of the soft clay; A conversion module is used to obtain the elastic modulus of each test point based on the initial shear modulus of each test point and using a conversion formula between shear modulus and elastic modulus; a fitting module, configured to perform data fitting on the deformation modulus and elastic modulus of each test point to obtain a first fitting relationship between the deformation modulus and the elastic modulus in a first state; The measurement module is used to determine a measurement formula for obtaining the deformation modulus using the initial shear modulus by using the conversion formula and the first fitting relationship.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method for measuring the deformation modulus of soft clay according to any one of claims 1 to 7 are implemented.