Desert aeolian sand compaction degree measuring method, device and equipment

Abstract

The invention provides a desert aeolian sand compaction degree measuring method, device and equipment. The desert aeolian sand compaction degree measuring method comprises the following steps: acquiring static penetration resistance experimental data and dynamic penetration resistance experimental data of a plurality of test points in a target area; determining a standard penetration force conversion relation according to the static penetration resistance experimental data and the dynamic penetration resistance experimental data; obtaining static penetration resistance measurement data of a plurality of measurement points in the target area; according to the static penetration resistance measurement data and the standard penetration force conversion relation, target standard penetration force data are obtained; and according to the target standard penetration force data, obtaining aeolian sand compaction degree information of a plurality of measurement points in the target area. According to the scheme, the standard penetration force conversion relation can be determined, so that the relation between the double-bridge static sounding and standard penetration test result indexes is determined, the double-bridge static sounding is utilized to inversely calculate the standard penetration test click number, the desert aeolian sand layer compactness degree is judged, the construction period can be shortened, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of compaction degree measurement of aeolian sand, and in particular to a method, device and equipment for measuring compaction degree of aeolian sand in deserts. Background Art

[0002] When conducting geotechnical engineering surveys in desert areas, it is necessary to determine the compactness of aeolian sand. Determining the compactness of aeolian sand is the most important work purpose in geotechnical surveys in desert areas. The current method for determining the compactness of aeolian sand in deserts is the standard penetration test, which is to first drill a hole and then conduct a standard penetration test in the hole to obtain the standard penetration hammer number N. The compactness of aeolian sand in deserts is determined based on the standard penetration hammer number N.

[0003] However, in desert areas where aeolian sand exists, it is difficult to bring in mechanical equipment for drilling holes in standard penetration tests. At the same time, aeolian sand in deserts is prone to hole collapse. Large-scale drilling and drilling in desert areas requires mud wall protection. In desert areas, mud production equipment is difficult to transport, resulting in difficulties in drilling holes. Therefore, it is difficult to conduct large-scale standard penetration tests in desert areas, with high costs and long construction periods. Summary of the invention

[0004] The present invention provides a method, device and equipment for measuring the compactness of desert aeolian sand, which can realize the determination of the standard penetration force conversion equation, thereby determining the relationship between the double-bridge static penetration test and the standard penetration test result index, and using the double-bridge static penetration test to back-calculate the number of standard penetration test blows, thereby judging the compactness of the desert aeolian sand layer, which helps to shorten the construction period and reduce costs.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] A method for measuring the compactness of desert aeolian sand, comprising:

[0007] Obtain static penetration resistance test data and dynamic penetration resistance test data of multiple test points in the target area;

[0008] Determining a standard penetration force conversion relationship according to the static penetration resistance test data and the dynamic penetration resistance test data;

[0009] Obtain static penetration resistance measurement data at multiple measurement points within the target area;

[0010] Obtaining target standard penetration force data according to the static penetration resistance measurement data and the standard penetration force conversion relationship;

[0011] According to the target standard penetration force data, the compaction degree information of aeolian sand at multiple measuring points in the target area is obtained;

[0012] According to the compaction degree information of aeolian sand at a plurality of measuring points in the target area, a measurement result of the compaction degree of aeolian sand in the desert is obtained.

[0013] Optionally, static penetration resistance test data and dynamic penetration resistance test data of multiple test points in the target area are obtained, including:

[0014] Obtain static penetration resistance test data and dynamic penetration resistance test data of multiple test points selected in the target area according to the first point selection rule.

[0015] Optionally, determining a standard penetration force conversion relationship according to the static penetration resistance test data and the dynamic penetration resistance test data includes:

[0016] Obtain the initial penetration force conversion relationship;

[0017] The standard penetration force conversion relationship is obtained based on the static penetration resistance test data, the dynamic penetration resistance test data and the initial penetration force conversion relationship.

[0018] Optionally, obtain the initial penetration force conversion relationship, including:

[0019] According to the formula:

[0020] F j =q c ×A+f s ×F s ;

[0021] F d =1.577×c1×ln(h)×N+1.577×c2×N;

[0022] F j ≈kF d ;

[0023] The initial penetration force conversion relationship is obtained:

[0024]

[0025] Among them, F j represents the static penetration resistance of soil during the static penetration test of the double bridge; q c represents the cone tip resistance obtained by double-bridge static penetration; A represents the cross-sectional area of ​​the static penetration probe; f s F represents the lateral friction resistance obtained by static penetration testing of double bridges; s Indicates the surface area of ​​the friction tube of the static penetration probe; F d It represents the dynamic penetration resistance of soil in standard penetration test; h represents the length of drill rod in standard penetration test; N represents the number of hammer blows in standard penetration test; c1, c2, k, k1 and k2 all represent coefficients, k1=k×c1, k2=k×c2.

[0026] Optional, according to the formula:

[0027] E0=M×G×H;

[0028] E R =E0×R;

[0029] R = c1 × ln (h) + c2;

[0030]

[0031] Get the formula: F d =1.577×c1×ln(h)×N+1.577×c2×N;

[0032] Among them, E0 represents the energy generated by each hammer blow in the standard penetration test; M represents the mass of the standard penetration test hammer, which is 63.5 kg; G represents the acceleration of gravity, which is 9.8 m / s 2 ; H represents the height of the standard penetration test hammer, which is 0.76m; E R It represents the energy transferred to the SPT in the standard penetration test; R represents the energy transfer coefficient, R≤1; h represents the length of the drill rod in the standard penetration test; L represents the penetration depth in the standard penetration test.

[0033] Optionally, static penetration resistance measurement data of multiple measurement points within the target area are obtained, including:

[0034] Obtain static penetration resistance measurement data of multiple measurement points selected in the target area according to the second point selection rule.

[0035] Optionally, according to the target standard penetration force data, the compaction degree information of aeolian sand at multiple measuring points in the target area is obtained, including:

[0036] The target standard penetration force data is compared with the desert aeolian sand density judgment standard to obtain aeolian sand density information at multiple measuring points in the target area.

[0037] The present invention also provides a device for measuring the compactness of desert aeolian sand, comprising:

[0038] An acquisition module is used to acquire static penetration resistance test data and dynamic penetration resistance test data of multiple test points in the target area; and acquire static penetration resistance measurement data of multiple measurement points in the target area;

[0039] A processing module is used to determine a standard penetration force conversion relationship based on the static penetration resistance test data and the dynamic penetration resistance test data; obtain target standard penetration force data based on the static penetration resistance measurement data and the standard penetration force conversion relationship; obtain compaction degree information of aeolian sand at multiple measuring points in a target area based on the target standard penetration force data; and obtain measurement results of the compaction degree of aeolian sand in the desert based on the compaction degree information of aeolian sand at multiple measuring points in the target area.

[0040] The present invention also provides a computing device, comprising: a processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method described above is executed.

[0041] The present invention also provides a computer-readable storage medium storing instructions, which, when executed on a computer, enable the computer to execute the method described above.

[0042] The above solution of the present invention includes at least the following beneficial effects:

[0043] The above scheme of the present invention obtains static penetration resistance test data and dynamic penetration resistance test data of multiple test points in the target area; determines the standard penetration force conversion relationship based on the static penetration resistance test data and the dynamic penetration resistance test data; obtains static penetration resistance measurement data of multiple measuring points in the target area; obtains target standard penetration force data based on the static penetration resistance measurement data and the standard penetration force conversion relationship; obtains the compaction degree information of aeolian sand at multiple measuring points in the target area based on the target standard penetration force data; obtains the measurement results of the compaction degree of aeolian sand in the desert based on the compaction degree information of aeolian sand at multiple measuring points in the target area; can realize the determination of the standard penetration force conversion relationship, thereby determining the relationship between the double bridge static penetration test and the standard penetration test result indicators, and using the double bridge static penetration test to back-calculate the number of standard penetration test blows, thereby judging the compaction degree of aeolian sand layer in the desert, which helps to shorten the construction period and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a flow chart of a method for measuring the compactness of desert aeolian sand provided by an embodiment of the present invention;

[0045] Figure 2 Module diagram of a device for measuring the compactness of desert aeolian sand provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0046] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0047] like Figure 1 As shown, an embodiment of the present invention provides a method for measuring the compactness of desert aeolian sand, comprising:

[0048] Step 11, obtaining static penetration resistance test data and dynamic penetration resistance test data of multiple test points in the target area;

[0049] Step 12, determining a standard penetration force conversion relationship according to the static penetration resistance test data and the dynamic penetration resistance test data;

[0050] Step 13, obtaining static penetration resistance measurement data of multiple measurement points in the target area;

[0051] Step 14, obtaining target standard penetration force data according to the static penetration resistance measurement data and the standard penetration force conversion relationship;

[0052] Step 15, obtaining the compaction degree information of aeolian sand at multiple measuring points in the target area according to the target standard penetration force data;

[0053] Step 16, obtaining a measurement result of the compactness of desert aeolian sand based on the compactness information of aeolian sand at multiple measurement points in the target area.

[0054] In this embodiment, static penetration resistance test data and dynamic penetration resistance test data of multiple test points in the target area are obtained; the standard penetration force conversion relationship is determined according to the static penetration resistance test data and the dynamic penetration resistance test data; static penetration resistance measurement data of multiple measuring points in the target area are obtained; target standard penetration force data are obtained according to the static penetration resistance measurement data and the standard penetration force conversion relationship; compaction information of aeolian sand at multiple measuring points in the target area is obtained according to the target standard penetration force data; measurement results of the compaction of aeolian sand in the desert are obtained according to the compaction information of aeolian sand at multiple measuring points in the target area; the standard penetration force conversion relationship can be determined, thereby determining the relationship between the double-bridge static penetration test and the standard penetration test result indicators, and using the double-bridge static penetration test to back-calculate the standard penetration test number, thereby judging the compaction degree of aeolian sand layers in the desert, which helps to shorten the construction period and reduce costs.

[0055] In an optional embodiment of the present invention, step 11 includes:

[0056] Step 111, obtaining static penetration resistance test data and dynamic penetration resistance test data of multiple test points selected in the target area according to the first point selection rule.

[0057] In this embodiment, multiple test points are selected in the target area according to the first point selection rule. Specifically, test points of different numbers and positions are selected according to different desert dune forms in the target area:

[0058] ① Target areas with sand dune height not higher than 2 meters (including 2 meters): no less than 3 test points per hectare (≥3 / hm2), and no less than 20 in total;

[0059] ② For target areas with sand dune height between 2 and 5 meters (inclusive): no less than 3 test points per hectare (≥3 / hm2), with a total of no less than 20, and the number of test points on the windward and leeward sides of the dunes shall each be no less than 40% of the total;

[0060] ③ Target areas with sand dune heights between 5 and 10 meters (inclusive): no less than 4 test points per hectare (≥4 / hm2), with a total of no less than 25, and the number of test points on the windward and leeward sides of the dunes shall each be no less than 40% of the total;

[0061] ④ Target areas with sand dune height greater than 10 meters: no less than 5 test points per hectare (≥5 / hm2), with a total of no less than 30, and the number of test points on the windward and leeward sides of the dunes shall each be no less than 40% of the total;

[0062] In this embodiment, multiple test points are selected in the target area by the first point selection rule, so that the compactness of the aeolian sand layer at the multiple test points can be sufficiently close to the compactness of the aeolian sand layer in the target area, thereby ensuring the accuracy of subsequent measurements.

[0063] In an optional embodiment of the present invention, step 12 includes:

[0064] Step 121, obtaining an initial penetration force conversion relationship;

[0065] Step 122, obtaining the standard penetration force conversion relationship according to the static penetration resistance test data, the dynamic penetration resistance test data and the initial penetration force conversion relationship.

[0066] Further, step 121 includes:

[0067] According to the formula:

[0068] F j =q c ×A+f s ×F s ;

[0069] F d =1.577×c1×ln(h)×N+1.577×c2×N;

[0070] F j ≈kF d ;

[0071] The initial penetration force conversion relationship is obtained:

[0072]

[0073] Among them, F j represents the static penetration resistance of soil during the static penetration test of the double bridge; q c represents the cone tip resistance obtained by double-bridge static penetration; A represents the cross-sectional area of ​​the static penetration probe; f s F represents the lateral friction resistance obtained by static penetration testing of double bridges; s Indicates the surface area of ​​the friction tube of the static penetration probe; F d It represents the dynamic penetration resistance of soil in standard penetration test; h represents the length of drill rod in standard penetration test; N represents the number of hammer blows in standard penetration test; c1, c2, k, k1 and k2 all represent coefficients, k1=k×c1, k2=k×c2.

[0074] Furthermore, according to the formula:

[0075] E0=M×G×H;

[0076] E R =E0×R;

[0077] R=c1×ln (h) +c2;

[0078]

[0079] Get the formula: F d =1.577×c1×ln(h)×N+1.577×c2×N;

[0080] Among them, E0 represents the energy generated by each hammer blow in the standard penetration test; M represents the mass of the standard penetration test hammer, which is 63.5 kg; G represents the acceleration of gravity, which is 9.8 m / s 2 ; H represents the height of the standard penetration test hammer, which is 0.76m; E R It represents the energy transferred to the SPT in the standard penetration test; R represents the energy transfer coefficient, R≤1; h represents the length of the drill rod in the standard penetration test; L represents the penetration depth in the standard penetration test.

[0081] In this embodiment, the standard penetration test (SPT) is to use a 63.5 kg weight to fall freely at a specified drop distance (76 cm), drive a standard specification penetrometer into the ground, and determine the properties of the soil layer based on the number of hammer blows obtained by the penetrometer at a certain penetration depth (30 cm);

[0082] Calculation of dynamic penetration resistance: In the standard penetration test, a 63.5kg hammer is lifted 76cm and dropped to hit the hammer pad, and the penetrator is penetrated into the soil through the drill pipe. The energy generated by each hammer is: E0 = 63.5kg × 9.8m / s2 × 0.76m = 473J; the energy generated by the hammer is transmitted to the standard penetration device through the drill pipe: E R =E0×R=473J×R; the relationship between the energy transfer coefficient R and the rod length h is: R=c1×ln(h)+c2; the hammer energy transferred to the standard penetration device is used to overcome the resistance of the aeolian sand stratum for the penetration process. The dynamic penetration resistance in the standard penetration test is: The standard penetration number N is the number of hammer blows when the standard penetration device penetrates 0.3m. The penetration depth L of the standard penetration test adopts the average penetration depth: Then, the dynamic penetration resistance is: F d =1.577×c1×ln(h)×N+1.577×c2×N;

[0083] During the static penetration test, static force is used to press the probe into the soil at a certain rate. The force sensor in the probe is used to record the penetration resistance of the probe through an electronic measuring device. In addition to the cone head sensor, the double-bridge probe also has a side wall friction sensor and a friction sleeve, which can measure the cone tip resistance and side friction force.

[0084] Calculation of dynamic penetration resistance: The static penetration resistance of aeolian sand in the double bridge static penetration test is: F j =q c ×A+f s ×F s ;q c represents the cone tip resistance obtained by double-bridge static penetration; A represents the cross-sectional area of ​​the static penetration probe; f s F represents the lateral friction resistance obtained by static penetration testing of double bridges; s It represents the surface area of ​​the friction tube of the static penetration probe;

[0085] Static penetration resistance F of double bridges based on static penetration test of aeolian sand with the same density j , and the dynamic penetration resistance F of the standard penetration test d Strong linear correlation and similarity principle: F j ≈kF d ; Finally, the initial penetration force conversion relationship is obtained: According to the static penetration resistance test data, the dynamic penetration resistance test data and the initial penetration force conversion relationship, the standard penetration force conversion relationship is obtained;

[0086] Through the above process, the standard penetration force conversion relationship can be obtained, that is, the static penetration resistance F of aeolian sand in the double bridge static penetration test j The conversion relationship between the static penetration resistance measurement data and the standard penetration force blow number N is convenient for obtaining the target standard penetration force data according to the subsequent conversion relationship between the static penetration resistance measurement data and the standard penetration force.

[0087] In an optional embodiment of the present invention, step 13 includes:

[0088] Step 131, obtaining static penetration resistance measurement data of a plurality of measurement points selected in the target area according to the second point selection rule.

[0089] In this embodiment, multiple measurement points are selected in the target area according to the second zone point rule. Specifically, according to the basic structural characteristics of the proposed building (structure) in the target area, the measurement points should be arranged according to the perimeter lines and corner points of the proposed building (structure), and the number and spacing of the measurement points should be arranged in a grid form of 30 to 120m spacing according to the type of building (structure) and the site topography, taking into account the perimeter lines and corner points of the building (structure);

[0090] ① For target areas where the height of sand dunes is not higher than 2 meters (including 2 meters), the building site adopts a spacing of 60 meters and the structure site adopts a spacing of 120 meters;

[0091] ② Target areas with sand dune heights between 2 and 10 meters (inclusive): 45 meters spacing is used for building sites and 100 meters spacing is used for structure sites;

[0092] ③ Target areas with sand dune height greater than 10 meters: 30 meters spacing is used for building sites, and 80 meters spacing is used for structure sites;

[0093] By selecting multiple measurement points in the target area according to the second zone point rule, the measurement accuracy of the compaction degree of aeolian sand in the target area can be guaranteed.

[0094] In an optional embodiment of the present invention, step 15 includes:

[0095] Step 151, comparing the target standard penetration force data with a criterion for judging the compactness of desert aeolian sand, and obtaining information on the compactness of aeolian sand at multiple measuring points in the target area.

[0096] In this embodiment, according to the target standard penetration force data and the desert aeolian sand compaction judgment standard, the aeolian sand compaction information of multiple measuring points in the target area is obtained, as shown in Table 1, which is the specific content of the desert aeolian sand compaction judgment standard.

[0097] Table 1 Classification of compactness of aeolian sand

[0098] Standard penetration hammer number N Degree of density Standard penetration hammer number N Degree of density N≤10 Loose 15＜N≤30 Medium 10＜N≤15 Slightly dense N＞30 Dense Specific embodiment:

[0100] The static penetration resistance test data and dynamic penetration resistance test data of multiple test points in a desert area were obtained; the details are shown in Table 2:

[0101] Table 2 Static penetration resistance test data and dynamic penetration resistance test data of multiple test points

[0102]

[0103] According to the static penetration resistance test data and the dynamic penetration resistance test data, the standard penetration force conversion relationship is determined; specifically, the data in Table 2 is input into The values ​​of k1 and k2 are obtained, where k1 = 0.15063, k2 = 0.28674; A is 15, F s Take the value 300; get the standard penetration force conversion relationship:

[0104] Obtain static penetration resistance measurement data at multiple measurement points in a desert area; specifically, the cone head resistance data and side resistance data are shown in Table 3;

[0105] According to the static penetration resistance measurement data and the standard penetration force conversion relationship, the target standard penetration force data is obtained; the specific target standard penetration force data is shown in the converted standard penetration number data in Table 3:

[0106] According to the target standard penetration force data, the compaction degree information of aeolian sand at multiple measuring points in a certain desert area is obtained; specifically, the target standard penetration force data is compared with the desert aeolian sand compaction degree judgment standard to obtain the compaction degree information of aeolian sand at multiple measuring points in a certain desert area; wherein the desert aeolian sand compaction degree judgment standard is shown in Table 1; specifically, the compaction degree information of aeolian sand at multiple measuring points in a certain desert area is shown in the compaction degree information in Table 3;

[0107] According to the compaction information of wind-blown sand at multiple measuring points in a certain desert area, the measurement results of the compaction of wind-blown sand in the desert are obtained; it is used to judge whether a certain desert area meets the conditions for building components;

[0108] Table 3 Static penetration resistance measurement data, converted standard penetration hits data and compaction information at multiple measurement points in a desert area

[0109]

[0110]

[0111] Through the above process, the conversion relationship of standard penetration force can be determined, thereby determining the relationship between the Shuangqiao static penetration test and the standard penetration test results. The Shuangqiao static penetration test can be used to back-calculate the number of standard penetration test blows, thereby determining the density of the desert aeolian sand layer, which helps to shorten the construction period and reduce costs.

[0112] like Figure 2 As shown, an embodiment of the present invention further provides a desert aeolian sand compaction degree measuring device 20, comprising:

[0113] An acquisition module 21 is used to acquire static penetration resistance test data and dynamic penetration resistance test data of multiple test points in the target area; and acquire static penetration resistance measurement data of multiple measurement points in the target area;

[0114] The processing module 22 is used to determine the standard penetration force conversion relationship based on the static penetration resistance test data and the dynamic penetration resistance test data; obtain the target standard penetration force data based on the static penetration resistance measurement data and the standard penetration force conversion relationship; obtain the compaction degree information of aeolian sand at multiple measuring points in the target area based on the target standard penetration force data; obtain the measurement result of the compaction degree of aeolian sand in the desert based on the compaction degree information of aeolian sand at multiple measuring points in the target area.

[0115] Optionally, static penetration resistance test data and dynamic penetration resistance test data of multiple test points in the target area are obtained, including:

[0116] Obtain static penetration resistance test data and dynamic penetration resistance test data of multiple test points selected in the target area according to the first point selection rule.

[0117] Optionally, determining a standard penetration force conversion relationship according to the static penetration resistance test data and the dynamic penetration resistance test data includes:

[0118] Obtain the initial penetration force conversion relationship;

[0119] The standard penetration force conversion relationship is obtained based on the static penetration resistance test data, the dynamic penetration resistance test data and the initial penetration force conversion relationship.

[0120] Optionally, obtain the initial penetration force conversion relationship, including:

[0121] According to the formula:

[0122] F j =q c ×A+f s ×F s ;

[0123] F d =1.577×c1×ln(h)×N+1.577×c2×N;

[0124] F j ≈kF d ;

[0125] The initial penetration force conversion relationship is obtained:

[0126]

[0127] Among them, F j represents the static penetration resistance of soil during the static penetration test of the double bridge; q c represents the cone tip resistance obtained by double-bridge static penetration; A represents the cross-sectional area of ​​the static penetration probe; f s F represents the lateral friction resistance obtained by static penetration testing of double bridges; s Indicates the surface area of ​​the friction tube of the static penetration probe; F d It represents the dynamic penetration resistance of soil in standard penetration test; h represents the length of drill rod in standard penetration test; N represents the number of hammer blows in standard penetration test; c1, c2, k, k1 and k2 all represent coefficients, k1=k×c1, k2=k×c2.

[0128] Optional, according to the formula:

[0129] E0=M×G×H;

[0130] E R =E0×R;

[0131] R=c1×ln (h) +c2;

[0132]

[0133] Get the formula: F d =1.577×c1×ln(h)×N+1.577×c2×N;

[0134] Among them, E0 represents the energy generated by each hammer blow in the standard penetration test; M represents the mass of the standard penetration test hammer, which is 63.5 kg; G represents the acceleration of gravity, which is 9.8 m / s 2 ; H represents the height of the standard penetration test hammer, which is 0.76m; E RIt represents the energy transferred to the SPT in the standard penetration test; R represents the energy transfer coefficient, R≤1; h represents the length of the drill rod in the standard penetration test; L represents the penetration depth in the standard penetration test.

[0135] Optionally, static penetration resistance measurement data of multiple measurement points within the target area are obtained, including:

[0136] Obtain static penetration resistance measurement data of multiple measurement points selected in the target area according to the second point selection rule.

[0137] Optionally, according to the target standard penetration force data, the compaction degree information of aeolian sand at multiple measuring points in the target area is obtained, including:

[0138] The target standard penetration force data is compared with the desert aeolian sand density judgment standard to obtain aeolian sand density information at multiple measuring points in the target area.

[0139] It should be noted that the device is a device corresponding to the above method, and all implementation methods in the above method embodiments are applicable to the embodiments of the device and can achieve the same technical effects.

[0140] The embodiment of the present invention further provides a computing device, including: a processor, a memory storing a computer program, and when the computer program is executed by the processor, the method described in the above embodiment is executed. All implementations in the above method embodiment are applicable to this embodiment and can achieve the same technical effect.

[0141] In an embodiment of the present invention, a computer-readable storage medium is further provided, which stores instructions, and when the instructions are executed on a computer, the computer executes the method described in the above embodiment. All implementations in the above method embodiment are applicable to this embodiment, and can also achieve the same technical effect.

[0142] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0143] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0144] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0145] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0146] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0147] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. 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, including several instructions for a computer device (which can be a personal computer, server, or 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 USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0148] In addition, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it is understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0149] Therefore, the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device. The computing device can be a well-known general device. Therefore, the purpose of the present invention can also be achieved by simply providing a program product containing a program code that implements the method or device. That is to say, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. In addition, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order. Some steps can be performed in parallel or independently of each other.

[0150] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for measuring the compactness of desert aeolian sand, characterized in that: include: Obtain static penetration resistance test data and dynamic penetration resistance test data of multiple test points in the target area; Determining a standard penetration force conversion relationship according to the static penetration resistance test data and the dynamic penetration resistance test data; Obtain static penetration resistance measurement data at multiple measurement points within the target area; Obtaining target standard penetration force data according to the static penetration resistance measurement data and the standard penetration force conversion relationship; According to the target standard penetration force data, the compaction degree information of aeolian sand at multiple measuring points in the target area is obtained; According to the compaction degree information of aeolian sand at a plurality of measuring points in the target area, a measurement result of the compaction degree of aeolian sand in the desert is obtained.

2. The method for measuring the compactness of desert aeolian sand according to claim 1, characterized in that: Obtain static penetration resistance test data and dynamic penetration resistance test data of multiple test points in the target area, including: Obtain static penetration resistance test data and dynamic penetration resistance test data of multiple test points selected in the target area according to the first point selection rule.

3. The method for measuring the compactness of desert aeolian sand according to claim 1, characterized in that: According to the static penetration resistance test data and the dynamic penetration resistance test data, a standard penetration force conversion relationship is determined, including: Obtain the initial penetration force conversion relationship; The standard penetration force conversion relationship is obtained based on the static penetration resistance test data, the dynamic penetration resistance test data and the initial penetration force conversion relationship.

4. The method for measuring the compactness of desert aeolian sand according to claim 3, characterized in that: Obtain the initial penetration force conversion relationship, including: According to the formula: F j =q c ×A+f s ×F s ; F d =1.577×c1×ln(h)×N+1.577×c2×N; F j ≈kF d ; The initial penetration force conversion relationship is obtained: Among them, F j represents the static penetration resistance of soil during the static penetration test of the double bridge; q c represents the cone tip resistance obtained by double-bridge static penetration; A represents the cross-sectional area of ​​the static penetration probe; f s F represents the lateral friction resistance obtained by static penetration testing of double bridges; s Indicates the surface area of ​​the friction tube of the static penetration probe; F d It represents the dynamic penetration resistance of soil in standard penetration test; h represents the length of drill rod in standard penetration test; N represents the number of hammer blows in standard penetration test; c1, c2, k, k1 and k2 all represent coefficients, k1=k×c1, k2=k×c2.

5. The method for measuring the compactness of desert aeolian sand according to claim 4, characterized in that: According to the formula: E0=M×G×H; AND R =E0×R; R = c1 × ln (h) + c2; Get the formula: F d =1.577×c1×ln(h)×N+1.577×c2×N; Among them, E0 represents the energy generated by each hammer blow in the standard penetration test; M represents the mass of the standard penetration test hammer, which is 63.5 kg; G represents the acceleration of gravity, which is 9.8 m / s 2 ; H represents the height of the standard penetration test hammer, which is 0.76m; E R It represents the energy transferred to the SPT in the standard penetration test; R represents the energy transfer coefficient, R≤1; h represents the length of the drill rod in the standard penetration test; L represents the penetration depth in the standard penetration test.

6. The method for measuring the compactness of desert aeolian sand according to claim 1, characterized in that: Obtain static penetration resistance measurement data at multiple measurement points within the target area, including: Obtain static penetration resistance measurement data of multiple measurement points selected in the target area according to the second point selection rule.

7. The method for measuring the compactness of desert aeolian sand according to claim 1, characterized in that: According to the target standard penetration force data, the compaction degree information of aeolian sand at multiple measuring points in the target area is obtained, including: The target standard penetration force data is compared with the desert aeolian sand density judgment standard to obtain aeolian sand density information at multiple measuring points in the target area.

8. A device for measuring the compactness of desert aeolian sand, characterized in that: include: An acquisition module, used to acquire static penetration resistance test data and dynamic penetration resistance test data of multiple test points in a target area; Obtain static penetration resistance measurement data at multiple measurement points within the target area; A processing module, used for determining a standard penetration force conversion relationship according to the static penetration resistance test data and the dynamic penetration resistance test data; According to the conversion relationship between the static penetration resistance measurement data and the standard penetration force, the target standard penetration force data is obtained; according to the target standard penetration force data, the compaction degree information of aeolian sand at multiple measuring points in the target area is obtained; according to the compaction degree information of aeolian sand at multiple measuring points in the target area, the measurement result of the compaction degree of aeolian sand in the desert is obtained.

9. A computing device, characterized in that include: A processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to any one of claims 1 to 7 is performed.

10. A computer-readable storage medium, characterized in that: Instructions are stored, and when the instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 7.

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