A method, device, storage medium and equipment for evaluating the effect of curing agent reinforcement on roadbed based on geotechnical test

Abstract

The present invention relates to the field of geotechnical engineering technology, and is a method for evaluating the effect of curing agent reinforcement of roadbed based on geotechnical tests, comprising the following steps: obtaining soil strength parameter a, soil anti-hydrolysis parameter b, soil cracking characteristic parameter c, and soil anti-scour characteristic parameter d; and obtaining a curing agent reinforcement roadbed effect contribution index according to a curing agent reinforcement roadbed soil contribution index model. A curing agent reinforcement roadbed effect evaluation device is characterized in that it comprises: a parameter acquisition module for obtaining soil strength parameter a, soil anti-hydrolysis parameter b, soil cracking characteristic parameter c, and soil anti-scour characteristic parameter d of indoor reinforced soil; and a reinforcement roadbed effect evaluation module for determining a curing agent reinforcement roadbed effect contribution index according to a curing agent reinforcement roadbed soil contribution index model.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering, and in particular to a method, a device, a storage medium and equipment for evaluating the effect of a curing agent on a roadbed reinforcement based on a geotechnical test. Background Art

[0002] The biggest technical difficulty in road widening is to solve the problem of uneven settlement of the new and old roadbeds. The difference in the filling materials of the new and old roadbeds has led to the end of the compression deformation of the old road under the action of vehicle load and deadweight, while the new roadbed has undergone a large compression deformation after construction, resulting in uneven deformation of the new and old roadbeds and damage to the road surface. At present, semi-rigid base layers represented by cement-stabilized crushed stone are widely used in the base materials of high-grade highways in my country. They have the advantages of good plate properties, high strength, and high bearing capacity, but their low durability, high cost, and serious resource consumption are contrary to the development concept of green environmental protection.

[0003] In recent years, curing agents have been widely used as a new type of roadbed reinforcement technology in highway construction projects. As an environmentally friendly and energy-saving material, curing agents can not only improve the physical and mechanical properties of soil, making it have good road performance, but also have obvious economic and environmental benefits. Therefore, the application of curing agents as base materials in road engineering practice is currently the focus of attention of scholars at home and abroad. At the same time, it is an urgent task to establish a set of evaluation methods for the effect of curing agent reinforcement roadbed with high feasibility, strong comprehensiveness, rapidity and accuracy. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a method, device, storage medium and equipment for evaluating the effect of curing agent reinforcement on roadbed based on geotechnical tests, which quantitatively evaluates the effect of curing agent reinforcement on roadbed, enriches the roadbed soil reinforcement evaluation system, and can accurately and efficiently evaluate the effect of curing agent reinforcement on roadbed soil.

[0005] In order to achieve the above purpose, a technical solution adopted by the present invention is:

[0006] A method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical test, characterized in that it comprises the following steps:

[0007] S10 obtains soil strength parameter a according to the results of unconfined compression test and rebound modulus determination test of indoor reinforced soil;

[0008] S20 obtains soil anti-hydrolysis capacity parameter b according to the static and dynamic anti-hydrolysis test results of the indoor reinforced soil;

[0009] S30 obtains soil cracking characteristic parameter c according to the drying test result of the indoor reinforced soil;

[0010] S40 obtains soil anti-scour characteristic parameter d according to the scour test results of the indoor reinforced soil; and

[0011] S50 defines the curing agent reinforcement roadbed contribution index model according to the parameters obtained in steps S10 to S40 as follows: PRSM=0.28×a+0.24×b+0.26×c+0.22×d;

[0012] Among them, PRSM is the contribution index of the curing agent to the roadbed reinforcement effect. The larger the PRSM value, the better the curing agent is for reinforcing the roadbed.

[0013] As a preference, when PRSM∈(0,20], the effect of curing agent on roadbed reinforcement is poor; when PRSM∈(20,40], the effect of curing agent on roadbed reinforcement is poor; when PRSM∈(40,60], the effect of curing agent on roadbed reinforcement is medium; when PRSM∈(60,80], the effect of curing agent on roadbed reinforcement is good; when PRSM∈(80,100], the effect of curing agent on roadbed reinforcement is excellent.

[0014] Preferably, the method for calculating the soil strength parameter a comprises the following steps:

[0015] S11 obtains the unconfined compressive strength score value o1 through the unconfined compression test;

[0016] S12 obtains a rebound modulus score value o2 through a rebound modulus measurement experiment; and

[0017] S13 defines the soil strength parameter a according to the unconfined compressive strength o1 and the rebound modulus o2 as follows: a=0.5×o1+0.5×o2.

[0018] Preferably, the scoring standards for the unconfined compressive strength and the modulus of resilience are:

[0019]

[0020] Preferably, the method for calculating the soil hydrolysis resistance parameter b comprises the following steps:

[0021] S21 obtains the disintegration degree score ml and the bonding strength score n1 through the static hydrolysis resistance test;

[0022] S22 obtains the disintegration degree score m2 and the bonding strength score n2 through a dynamic hydrolysis resistance test; and

[0023] S23 defines the soil anti-hydrolysis capacity parameter b as follows: b=0.3×(m1+m2)+0.2×(n1+n2) according to the disintegration degree scores m1, m2 and the bonding strength scores n1, n2.

[0024] Preferably, the scoring standards for the disintegration degree and the bonding strength are:

[0025]

[0026]

[0027] Preferably, the method for calculating the soil cracking characteristic parameter c comprises the following steps:

[0028] S31 obtained soil samples with completely stable surface crack network development through indoor soil drying test;

[0029] S32 uses a camera and software to analyze and extract the crack morphology on the sample surface and make statistics;

[0030] S33 obtains the crack rate score value q1 through statistical result analysis;

[0031] S34 uses a ruler to extend into the crack to measure the crack depth;

[0032] S35 defines the crack depth ratio as the ratio of the crack depth to the soil depth, and obtains the crack depth ratio score q2 according to the measured crack depth, and

[0033] S36 defines the soil cracking characteristic parameter c as follows: c=0.45×q1+0.55×q2 according to the crack ratio score q1 and the crack depth ratio score q2.

[0034] As a preferred method, the scoring criteria for the crack ratio and crack depth ratio are:

[0035]

[0036] Preferably, the method for calculating the soil anti-scour characteristic parameter d comprises the following steps:

[0037] S41 obtains the morphological integrity of the sample through the scouring test, and obtains the erosion depth ratio score r1 and the erosion area ratio score r2; and

[0038] S42 defines the soil anti-scour characteristic parameter d as follows: d=0.5×r1+0.5×r2 according to the erosion depth ratio scoring value r1 and the erosion area ratio scoring value r2.

[0039] As a preferred method, the scoring criteria for the erosion depth ratio and the erosion area ratio are:

[0040]

[0041] A device for evaluating the effect of curing agent reinforcement on roadbed, comprising:

[0042] A parameter acquisition module is used to obtain soil strength parameter a, soil anti-hydrolysis parameter b, soil cracking characteristic parameter c, and soil anti-scour characteristic parameter d of indoor reinforced soil;

[0043] The roadbed reinforcement effect evaluation module is used to determine the contribution index of the roadbed reinforcement effect of the curing agent according to the contribution index model of the roadbed reinforcement soil of the curing agent;

[0044] The contribution index model of curing agent to reinforce roadbed soil is as follows:

[0045] PRSM=0.28×a+0.24×b+0.26×c+0.22×d;

[0046] Among them, PRSM is the contribution index of the curing agent to the roadbed reinforcement effect. The larger the PRSM value, the better the curing agent is for reinforcing the roadbed.

[0047] A storage medium stores a computer program that can be executed by a processor, and when the computer program is executed, the steps of the method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical test are implemented.

[0048] A computer device has a memory and a processor. The memory stores a computer program that can be executed by the processor. When the computer program is executed, the steps of the method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical tests are implemented.

[0049] The beneficial effects of the present invention are: quantitative evaluation is performed on the effect of curing agent reinforcing roadbed, the roadbed soil reinforcement evaluation system is enriched, and the effect of curing agent reinforcing roadbed soil can be accurately and efficiently evaluated; a series of safety accidents and economic and social losses caused by uneven settlement of the roadbed are effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The technical solutions and beneficial effects of the present invention will be made apparent by describing in detail the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0051] Figure 1 The figure is a flow chart of a method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical test according to an embodiment of the present invention;

[0052] Figure 2 The figure is a simplified flow chart of a method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical test according to an embodiment of the present invention. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the present invention.

[0054] like Figure 1-2 As shown, the present invention provides a method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical test, comprising the following steps:

[0055] S10 obtains soil strength parameter a according to the results of unconfined compression test and rebound modulus determination test of indoor reinforced soil; S20 obtains soil hydrolysis resistance parameter b according to the results of static and dynamic hydrolysis resistance test of indoor reinforced soil; S30 obtains soil cracking characteristic parameter c according to the drying test results of indoor reinforced soil; S40 obtains soil anti-scour characteristic parameter d according to the scour test results of indoor reinforced soil; and S50 defines the contribution index model of curing agent reinforced roadbed according to the relevant mechanical and hydraulic parameter information of the curing agent reinforced roadbed soil obtained in steps S10 to S40 as follows: PRSM=0.28×a+0.24×b+0.26×c+0.22×d; wherein PRSM is the contribution index of curing agent reinforced roadbed effect. The evaluation standard of the curing agent reinforced roadbed effect is: the larger the PRSM value, the better the curing agent reinforced roadbed effect.

[0056] The soil strength parameter a includes two evaluation indicators: unconfined compressive strength and rebound modulus; the rebound modulus refers to the ratio of the dynamic deviator stress to the recoverable axial strain of the soil under instantaneous dynamic pulse load.

[0057] The soil hydrolysis resistance parameter b includes two evaluation indicators: disintegration degree and bonding strength; the disintegration degree includes two evaluation indicators: disintegration area and disintegration time.

[0058] The soil cracking characteristic parameter c includes two evaluation indicators: crack ratio and crack depth ratio; the crack ratio refers to the ratio of the crack area on the sample surface to the sample surface area, and the crack depth ratio refers to the ratio of the crack depth to the soil depth.

[0059] The soil anti-scouring characteristic parameter d includes two evaluation indicators: erosion depth ratio and erosion area ratio. The erosion depth ratio refers to the ratio of the gully depth formed by water scouring the soil to the soil depth; the erosion area ratio refers to the ratio of the damaged area caused by water scouring the soil to the soil surface area.

[0060] The effect of curing agent reinforcement on roadbed is graded according to the PRSM value, and the grading standard is as follows: when PRSM∈(0,20], the reinforcement effect is poor; when PRSM∈(20,40], the reinforcement effect is poor; when PRSM∈(40,60], the reinforcement effect is medium; when PRSM∈(60,80], the reinforcement effect is good; when PRSM∈(80,100], the reinforcement effect is excellent.

[0061] The calculation method of the soil strength parameter a includes the following steps: S11 obtains the unconfined compressive strength score value o1 through an unconfined compression test; S12 obtains the rebound modulus score value o2 through a rebound modulus measurement experiment; S13 defines the soil strength parameter a as follows based on the unconfined compressive strength and rebound modulus of the reinforced soil: a=0.5×o1+0.5×o2.

[0062] The scoring standards for the two evaluation indicators of the soil strength parameter a are shown in Table 1:

[0063] Table 1. Evaluation index table of strength parameters of roadbed soil reinforced with curing agent

[0064]

[0065] The calculation method of the soil anti-hydrolysis ability parameter b includes the following steps: S21 obtains the disintegration degree score value ml and the bonding strength score value n1 through a static anti-hydrolysis test; S22 obtains the disintegration degree score value m2 and the bonding strength score value n2 through a dynamic anti-hydrolysis test; S23 defines the soil anti-hydrolysis ability parameter b as follows according to the soil disintegration degree scores m1, m2 and the bonding strength scores n1, n2: b=0.3×(m1+m2)+0.2×(n1+n2).

[0066] The scoring standards for the two evaluation indexes of the soil hydrolysis resistance parameter b are shown in Table 2:

[0067] Table 2. Evaluation index table of hydrolysis resistance parameters of roadbed soil reinforced with curing agent

[0068]

[0069] The calculation method of the soil cracking characteristic parameter c includes the following steps: S31 obtains a soil sample with a completely stable surface crack network through an indoor soil drying test; S32 extracts the surface crack morphology of the sample through a shooting device and software analysis and performs statistics; S33 obtains a crack rate score q1 through statistical result analysis; S34 uses a ruler to extend into the crack to measure the crack depth; S35 defines the crack depth ratio as the ratio of the crack depth to the soil depth according to the measured crack depth, and obtains the crack depth ratio score q2; S36 defines the soil cracking characteristic parameter c as follows according to the crack rate score q1 and the crack depth ratio score q2: c=0.45×q1+0.55×q2.

[0070] The scoring standards for the two evaluation indicators of the soil cracking characteristic parameter c are shown in Table 3:

[0071] Table 3. Evaluation index scoring table of cracking characteristic parameters of roadbed soil reinforced with curing agent

[0072]

[0073]

[0074] The calculation method of the soil anti-scour characteristic parameter d includes the following steps: S41 obtains the degree of integrity of the sample morphology through a scour test, and obtains the erosion depth ratio scoring value r1 and the erosion area ratio scoring value r2; and S42 defines the soil anti-scour characteristic parameter d as follows based on the erosion depth ratio scoring value r1 and the erosion area ratio scoring value r2: d=0.5×r1+0.5×r2.

[0075] The scoring standards for the two evaluation indicators of the soil anti-scour characteristic parameter d are shown in Table 4:

[0076] Table 4. Evaluation index scoring table of cracking characteristic parameters of roadbed soil reinforced with curing agent

[0077]

[0078] The present invention also provides a device for evaluating the effect of curing agent reinforcement on roadbed, comprising:

[0079] A parameter acquisition module is used to obtain soil strength parameter a, soil anti-hydrolysis parameter b, soil cracking characteristic parameter c, and soil anti-scour characteristic parameter d of indoor reinforced soil;

[0080] The roadbed reinforcement effect evaluation module is used to determine the contribution index of the roadbed reinforcement effect of the curing agent according to the contribution index model of the roadbed reinforcement soil of the curing agent;

[0081] The contribution index model of curing agent to reinforce roadbed soil is as follows:

[0082] PRSM=0.28×a+0.24×b+0.26×c+0.22×d;

[0083] Among them, PRSM is the contribution index of the curing agent to the roadbed reinforcement effect. The larger the PRSM value, the better the curing agent is for reinforcing the roadbed.

[0084] The present invention also provides a storage medium on which a computer program that can be executed by a processor is stored. When the computer program is executed, the steps of the method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical tests are implemented.

[0085] The present invention also provides a computer device having a memory and a processor, wherein the memory stores a computer program that can be executed by the processor, and when the computer program is executed, the steps of the method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical tests are implemented.

[0086] Example 1

[0087] The technical solution of the present invention is further described by taking a roadbed section reinforced with a certain curing agent as an example. Figure 1 , Figure 2 As shown in the steps, parameters are collected, scores are assigned and formulas are established.

[0088] S11 obtains the unconfined compressive strength score o1=80 through the unconfined compression test.

[0089] S12 obtains the rebound modulus score value o2=80 through the rebound modulus measurement experiment.

[0090] S13 determines the soil strength parameter a=0.5×o1+0.5×o2=80 according to the unconfined compressive strength and the rebound modulus of the reinforced soil.

[0091] S21 obtains the disintegration degree score m1=90 and the bonding strength score n1=91 through the static anti-hydrolysis test.

[0092] S22 obtained the disintegration degree score m2=85 and the bonding strength score n2=89 through the dynamic anti-hydrolysis test.

[0093] S23 determines the soil anti-hydrolysis capacity parameter b=0.3×(m1+m2)+0.2×(n1+n2)=88.5 according to the soil disintegration degree m1, m2 and the bonding strength n1, n2.

[0094] S31 obtained soil samples with completely stable surface crack network development through indoor soil drying test.

[0095] S32 uses a camera and software to analyze and extract the crack morphology on the sample surface and conduct statistics.

[0096] S33 obtains the crack ratio score value q1=75 through statistical result analysis.

[0097] S34 uses a ruler to extend into the crack to measure the crack depth.

[0098] S35 determines the crack depth ratio scoring value q2 as 90 according to the measured crack depth.

[0099] S36 determines the soil cracking characteristic parameter c=0.45×q1+0.55×q2=83.25 according to the soil crack ratio score q1 and the crack depth ratio score q2.

[0100] S41 obtains the morphological integrity of the sample through scouring test, and obtains the erosion depth ratio scoring value r1=80 and the erosion area ratio scoring value r2=85.

[0101] S42 determines the soil anti-scour characteristic parameter d=0.5×r1+0.5×r2=82.5 according to the erosion depth ratio scoring value r1 and the erosion area ratio scoring value r2.

[0102] According to the obtained relevant mechanical and hydraulic parameter information of the roadbed soil reinforced with the curing agent, the curing agent reinforced roadbed contribution index model PRSM=0.28×a+0.24×b+0.26×c+0.22×d=83.435 was determined.

[0103] It can be further judged that the curing agent reinforcement effect of the roadbed section is excellent.

[0104] The above description is only an exemplary embodiment of the present invention, and does not limit the scope of patent protection of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the present invention.

Claims

1. A method for evaluating the effect of curing agent reinforcement on roadbed based on geotechnical test, characterized in that: The steps include: S10 obtains soil strength parameter a according to the results of unconfined compression test and rebound modulus determination test of indoor reinforced soil; The calculation method of the soil strength parameter a comprises the following steps: S11 obtains the unconfined compressive strength score value o1 through the unconfined compression test; S12 obtains a rebound modulus score value o2 through a rebound modulus measurement experiment; and S13 defines the soil strength parameter a according to the unconfined compressive strength o1 and the rebound modulus o2 as follows: a=0.5×o1+0.5×o2; S20 obtains soil anti-hydrolysis capacity parameter b according to the static and dynamic anti-hydrolysis test results of the indoor reinforced soil; The calculation method of the soil hydrolysis resistance parameter b comprises the following steps: S21 obtains the disintegration degree score m1 and the bonding strength score n1 through the static hydrolysis resistance test; S22 obtains the disintegration degree score m2 and the bonding strength score n2 through the dynamic anti-hydrolysis test; as well as S23 defines the soil anti-hydrolysis capacity parameter b as follows: b=0.3×(m1+m2)+0.2×(n1+n2) according to the disintegration degree scores m1 and m2 and the bonding strength scores n1 and n2; S30 obtains soil cracking characteristic parameter c according to the drying test result of the indoor reinforced soil; The method for calculating the soil cracking characteristic parameter c comprises the following steps: S31 obtained soil samples with completely stable surface crack network development through indoor soil drying test; S32 uses a camera and software to analyze and extract the crack morphology on the sample surface and make statistics; S33 obtains the crack rate score value q1 through statistical result analysis; S34 uses a ruler to extend into the crack to measure the crack depth; S35 defines the crack depth ratio as the ratio of the crack depth to the soil depth, and obtains the crack depth ratio score q2 according to the measured crack depth, and S36 defines the soil cracking characteristic parameter c as follows according to the crack ratio score q1 and the crack depth ratio score q2: c=0.45×q1+0.55×q2; S40 obtains soil anti-scour characteristic parameter d according to the scour test results of the indoor reinforced soil; and S50 defines the curing agent reinforcement roadbed contribution index model according to the parameters obtained in steps S10 to S40 as follows: PRSM=0.28×a+0.24×b+0.26×c+0.22×d; The method for calculating the soil anti-scour characteristic parameter d comprises the following steps: S41 obtains the morphological integrity of the sample through the scouring test, and obtains the erosion depth ratio score r1 and the erosion area ratio score r2; and S42 defines the soil anti-scour characteristic parameter d as follows according to the erosion depth ratio score r1 and the erosion area ratio score r2: d=0.5×r1+0.5×r2; Among them, PRSM is the contribution index of the curing agent to the roadbed reinforcement effect. The larger the PRSM value, the better the curing agent to reinforce the roadbed effect. The scoring standards for the unconfined compressive strength and the modulus of resilience are: The scoring standards for the disintegration degree and bonding strength are: The scoring criteria for the crack ratio and crack depth ratio are: The scoring criteria for erosion depth ratio and erosion area ratio are as follows:

2. The method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical test according to claim 1 is characterized in that: When PRSM∈(0,20], the effect of curing agent on roadbed reinforcement is poor; when PRSM∈(20,40], the effect of curing agent on roadbed reinforcement is poor; when PRSM∈(40,60], the effect of curing agent on roadbed reinforcement is medium; when PRSM∈(60,80], the effect of curing agent on roadbed reinforcement is good; when PRSM∈(80,100], the effect of curing agent on roadbed reinforcement is excellent.

3. A device for evaluating the effect of curing agent on roadbed reinforcement, characterized in that: include: A parameter acquisition module, used to acquire the soil strength parameter a, soil anti-hydrolysis parameter b, soil cracking characteristic parameter c, and soil anti-scour characteristic parameter d of the indoor reinforced soil as claimed in claim 1 or 2; The roadbed reinforcement effect evaluation module is used to determine the contribution index of the roadbed reinforcement effect of the curing agent according to the contribution index model of the roadbed reinforcement soil of the curing agent; The contribution index model of curing agent to reinforce roadbed soil is as follows: PRSM=0.28×a+0.24×b+0.26×c+0.22×d; Among them, PRSM is the contribution index of the curing agent to the roadbed reinforcement effect. The larger the PRSM value, the better the curing agent is for reinforcing the roadbed.

4. A storage medium having stored thereon a computer program executable by a processor, characterized in that: When the computer program is executed, the steps of the method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical tests as described in any one of claims 1 to 2 are implemented.

5. A computer device comprising a memory and a processor, wherein the memory stores a computer program executable by the processor, wherein: When the computer program is executed, the steps of the method for evaluating the effect of curing agent reinforcement roadbed based on geotechnical tests as described in any one of claims 1 to 2 are implemented.

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