A method, device and medium for calculating compression coefficient of interlayer soil

Abstract

The invention discloses a method, device and medium for calculating the compression coefficient of interlayer soil, and relates to the field of computational soil mechanics. The method comprises: obtaining the compression coefficient difference ratio of the interlayer soil according to the compression coefficient of the thick layer and the compression coefficient of the thin layer in the interlayer soil; determining the property difference between the thick layer and the thin layer in the interlayer soil according to the compression coefficient difference ratio of the interlayer soil; determining the compression coefficient of the interlayer soil according to the calculation formula corresponding to the property difference, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer. The method can accurately calculate the compression coefficient of the interlayer soil.

Description

Technical Field

[0001] The invention relates to the field of computational soil mechanics, and in particular to a method, a device and a medium for calculating the compression coefficient of interlayer soil. Background Art

[0002] Due to the change of sedimentary environment, the strata undergo periodic reciprocating action and often form strata with multiple soil types alternating, showing unique horizontal stratification and sedimentary rhythm. Interbedded soil has a wide spatial distribution range. For example, this soil layer is widely distributed in China's sea areas. The transition layer of modern floodplain soil layers in the middle and lower reaches of the Yangtze River is a typical interlayer of silt and clay. The interlayer of loess and paleosol forms a complete sequence of Quaternary loess strata. When the thickness ratio of thin layer to thick layer in two adjacent soil layers of different properties is greater than 1 / 3, it is called interbedded soil.

[0003] The compressibility of soil is the property that the volume of soil can be reduced under pressure. The compressibility of soil needs some indicators to measure, such as the compression coefficient of soil. The compression coefficient of soil is the ratio of the decrease in porosity to the increase in pressure when the soil is under pressure under confined conditions, which reflects the difficulty of compression and deformation of the soil under pressure. The change in porosity caused by unit pressure increment is used to characterize the compressibility of soil. The compression coefficient of soil has a wide range of applications in engineering geology, such as foundation treatment, foundation pit excavation, tunnel construction, etc. By calculating the compression coefficient of soil, the compressibility of soil can be understood, which provides an important basis for engineering design and construction. The current specifications have clear provisions for the calculation method of the compression coefficient of homogeneous soils such as crushed stone soil, sandy soil, silt soil, loess, and special soil. However, the calculation method of the compression coefficient of interlayer soil is not mentioned in the current specifications. Geotechnical engineers can only take values ​​based on their own work experience, and their specific values ​​are often conservative.

[0004] Therefore, a method that can accurately calculate the compression coefficient of interlayer soil is urgently needed. Summary of the invention

[0005] Based on this, it is necessary to provide a method, device and medium for calculating the compression coefficient of interlayer soil in response to the above technical problems. The method can accurately calculate the compression coefficient of interlayer soil.

[0006] The present invention adopts the following technical solutions:

[0007] The present invention provides a method for calculating the compression coefficient of interlayer soil, comprising:

[0008] According to the compression coefficient of the thick layer and the compression coefficient of the thin layer in the interlayer soil, the compression coefficient difference ratio of the interlayer soil is obtained;

[0009] According to the compression coefficient difference ratio of interlayer soil, the difference in properties between thick and thin layers in interlayer soil can be determined;

[0010] The compression coefficient of the interlayer soil is determined based on the calculation formula corresponding to the property difference, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer.

[0011] Preferably, the calculation formula of the compression coefficient difference ratio is:

[0012] ;

[0013] in, is the compression coefficient difference ratio of the interlayer soil, is the compression coefficient of the thick layer, is the compression coefficient of the thin layer.

[0014] Preferably, the difference in properties between thick and thin layers in the interlayer soil is determined based on the compression coefficient difference ratio of the interlayer soil, specifically including:

[0015] When the compression coefficient difference ratio of the interlayer soil is less than a first preset threshold value, it is determined that the properties of the thick layer and the thin layer in the interlayer soil are similar;

[0016] When the compression coefficient difference ratio of the interlayer soil is greater than or equal to the first preset threshold value and less than the second preset threshold value, it is determined that there is a difference in the properties of the thick layer and the thin layer in the interlayer soil;

[0017] When the compression coefficient difference ratio of the interlayer soil is greater than or equal to the second preset threshold, it is determined that the properties of the thick layer and the thin layer in the interlayer soil are very different.

[0018] Preferably, the compression coefficient of the interlayer soil is determined according to the calculation formula corresponding to the property difference, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer, specifically including:

[0019] When the difference in properties is that the properties of the thick layer and the thin layer in the interlayer soil are similar, the thickness of the thick layer, the thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer are substituted into the calculation formula to obtain the compression coefficient of the interlayer soil; the calculation formula for the compression coefficient of the interlayer soil is:

[0020] ;

[0021] in, is the compression coefficient of the interlayer soil, is the compression coefficient of the thick layer, is the compression coefficient of the thin layer, is the thickness of the thin layer, The thickness of the thick layer.

[0022] Preferably, the compression coefficient of the interlayer soil is determined according to the calculation formula corresponding to the property difference, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer, specifically including:

[0023] When the property difference is that there is a difference in the properties of the thick layer and the thin layer in the interlayer soil, the magnitude relationship between the compression coefficient of the thick layer and the compression coefficient of the thin layer of the interlayer soil is obtained, and the thickness ratio of the interlayer soil is calculated according to the layer thickness of the thick layer and the layer thickness of the thin layer;

[0024] The calculation formula of the compression coefficient of the interlayer soil corresponding to the size relationship and the thickness ratio is obtained, and the compression coefficient of the thick layer and the compression coefficient of the thin layer are substituted into the calculation formula to obtain the compression coefficient of the interlayer soil.

[0025] Preferably, the method comprises:

[0026] When the size relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the first segment value and less than or equal to the second segment value, the calculation formula for the compression coefficient of the interlayer soil is:

[0027] ;

[0028] When the size relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the second segment value and less than or equal to the third segment value, the calculation formula for the compression coefficient of the interlayer soil is:

[0029] ;

[0030] When the size relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the third segment value and less than or equal to the fourth segment value, the calculation formula for the compression coefficient of the interlayer soil is:

[0031] ;

[0032] When the size relationship is that the compression coefficient of the thick layer is less than that of the thin layer, and the thickness ratio is greater than the first segment value and less than or equal to the second segment value, the calculation formula for the compression coefficient of the interlayer soil is:

[0033] ;

[0034] When the size relationship is that the compression coefficient of the thick layer is less than the compression coefficient of the thin layer, and the thickness ratio is greater than the second segment value and less than or equal to the third segment value, the calculation formula for the compression coefficient of the interlayer soil is:

[0035] ;

[0036] When the size relationship is that the compression coefficient of the thick layer is less than that of the thin layer, and the thickness ratio is greater than the third segment value and less than or equal to the fourth segment value, the calculation formula for the compression coefficient of the interlayer soil is:

[0037] ;

[0038] in, is the compression coefficient of the interlayer soil, is the compression coefficient of the thick layer, is the compression coefficient of the thin layer.

[0039] Preferably, the thickness ratio of the interlayer soil is calculated according to the thickness of the thick layer and the thickness of the thin layer, specifically including:

[0040] The ratio between the layer thickness of the thick layer and the layer thickness of the thin layer is determined as the thickness ratio of the interlayered soil.

[0041] Preferably, the method further comprises:

[0042] When the difference in properties is large between the thick and thin layers in the interlayered soil, the layer summation method is used to determine the compression coefficient of the interlayered soil.

[0043] The present invention provides a device for calculating the compression coefficient of interlayer soil, comprising:

[0044] The acquisition module is used to obtain the compression coefficient of the thick layer and the compression coefficient of the thin layer in the interlayer soil, and obtain the compression coefficient difference ratio of the interlayer soil through the established command formula;

[0045] A confirmation module is used to determine the difference in properties between thick and thin layers in the interlayer soil according to the difference ratio of the compression coefficient of the interlayer soil;

[0046] The calculation module is used to determine the compression coefficient of the interlayer soil according to the calculation formula corresponding to the property difference, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer.

[0047] The present invention provides a computer-readable storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the method for calculating the compression coefficient of interlayer soil is implemented.

[0048] The present invention provides a computer device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned method for calculating the compression coefficient of interlayer soil when executing the program.

[0049] At least one of the above technical solutions adopted by the present invention can achieve the following beneficial effects:

[0050] According to the compression coefficient of the thick layer and the compression coefficient of the thin layer in the interlayer soil, the compression coefficient difference ratio of the interlayer soil is obtained; according to the compression coefficient difference ratio of the interlayer soil, the property difference between the thick layer and the thin layer in the interlayer soil is determined; according to the calculation formula corresponding to the property difference, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer, the compression coefficient of the interlayer soil is determined. The above technology obtains the compression coefficient of the thick layer and the thin layer in the interlayer soil, calculates the compression coefficient difference ratio of the interlayer soil, obtains the layer thickness of the thick layer and the thin layer in the interlayer soil, and uses the calculation formula corresponding to the property difference to accurately calculate the compression coefficient of the interlayer soil, thereby solving the problem that the existing technology cannot accurately obtain the compression coefficient of the interlayer soil and can only estimate it based on work experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0052] Figure 1 A schematic flow chart of a method for calculating the compression coefficient of interlayer soil provided by the present invention;

[0053] Figure 2 A schematic diagram of a method for calculating the compression coefficient of interlayer soil provided by the present invention;

[0054] Figure 3 A schematic diagram of a device for calculating the compression coefficient of interlayer soil provided by the present invention;

[0055] Figure 4 A schematic diagram of a computer device for realizing a method for calculating the compression coefficient of interlayer soil provided by the present invention. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0057] The devices that execute the solutions of this specification include servers, desktops, laptops, terminals, etc. For the convenience of description, the following description is based on computer devices as the execution subject.

[0058] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0059] Figure 1The present invention is a flow chart of a method for calculating the compression coefficient of interlayer soil, which specifically includes the following steps:

[0060] S101: According to the compression coefficient of the thick layer and the compression coefficient of the thin layer in the interlayer soil, the compression coefficient difference ratio of the interlayer soil is obtained.

[0061] Use geological survey reports or soil compression tests to obtain the compression coefficient of thick layers in interlayer soil and the compressibility of the thin layer .

[0062] In an exemplary embodiment, the calculation method of the compression coefficient difference ratio of the interlayer soil is shown in formula (1):

[0063] (1);

[0064] in, is the compression coefficient difference ratio of the interlayer soil, is the compression coefficient of the thick layer, is the compression coefficient of the thin layer.

[0065] S102: Determine the difference in properties between thick and thin layers in the interlayer soil based on the compression coefficient difference ratio of the interlayer soil.

[0066] In an exemplary embodiment, the difference in properties between the thick layer and the thin layer in the interlayer soil is determined based on the compression coefficient difference ratio of the interlayer soil, specifically including: when the compression coefficient difference ratio of the interlayer soil is less than a first preset threshold, it is determined that the properties of the thick layer and the thin layer in the interlayer soil are similar; when the compression coefficient difference ratio of the interlayer soil is greater than or equal to the first preset threshold and less than the second preset threshold, it is determined that there is a difference in properties between the thick layer and the thin layer in the interlayer soil; when the compression coefficient difference ratio of the interlayer soil is greater than or equal to the second preset threshold, it is determined that the properties of the thick layer and the thin layer in the interlayer soil are very different.

[0067] Specifically, the first preset threshold and the second preset threshold can be set according to specific engineering practices; for example, the first preset threshold is set to 30%, and the second preset threshold is set to 60%.

[0068] The compression coefficient difference ratio is ,according to Determine the differences in properties between thick and thin layers of interbedded soil:

[0069] (1) When When it is less than 30%, it is determined that the properties of the thick and thin layers in the interbedded soil are similar;

[0070] (2) When 30% ≤ <60%, it is determined that there are differences in the properties of the thick and thin layers of interbedded soil;

[0071] (3) When ≥60%, it is determined that the properties of the thick and thin layers in the interlayered soil are very different.

[0072] S103: Determine the compression coefficient of the interlayer soil according to the calculation formula corresponding to the property difference, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer.

[0073] In an exemplary embodiment, when the property difference is that the properties of the thick layer and the thin layer in the interlayer soil are similar, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer are substituted into the calculation formula to obtain the compression coefficient of the interlayer soil; the calculation method of the compression coefficient of the interlayer soil is shown in formula (2):

[0074] (2);

[0075] in, is the compression coefficient of the interlayer soil, is the compression coefficient of the thick layer, is the compression coefficient of the thin layer, is the thickness of the thin layer, The thickness of the thick layer.

[0076] In an exemplary embodiment, the thickness ratio of the interlayer soil is calculated according to the thickness of the thick layer and the thickness of the thin layer, which specifically includes: determining the ratio between the thickness of the thick layer and the thickness of the thin layer as the thickness ratio of the interlayer soil.

[0077] Specifically, the interlayer soil thickness ratio The calculation method of is shown in formula (3):

[0078] (3);

[0079] in, is the thickness ratio of the interlayer soil, The thickness of the thin layer in the interlayer soil is It is a thick layer of interlayered soil.

[0080] In an exemplary embodiment, when the property difference is that there is a difference in the properties of the thick layer and the thin layer in the interlayer soil, the size relationship between the compression coefficient of the thick layer and the compression coefficient of the thin layer of the interlayer soil is obtained, and the thickness ratio of the interlayer soil is calculated based on the layer thickness of the thick layer and the layer thickness of the thin layer; the calculation formula of the compression coefficient of the interlayer soil corresponding to the size relationship and the thickness ratio is obtained, and the compression coefficient of the thick layer and the compression coefficient of the thin layer are substituted into the calculation formula to obtain the compression coefficient of the interlayer soil.

[0081] In an exemplary embodiment, when the magnitude relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the first segment value and less than or equal to the second segment value, the compression coefficient of the interlayer soil is calculated as shown in formula (4):

[0082] (4);

[0083] When the size relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the second segment value and less than or equal to the third segment value, the compression coefficient of the interlayer soil is calculated as shown in formula (5):

[0084] (5);

[0085] When the size relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the third segment value and less than or equal to the fourth segment value, the compression coefficient of the interlayer soil is calculated as shown in formula (6):

[0086] (6);

[0087] When the size relationship is that the compression coefficient of the thick layer is less than that of the thin layer, and the thickness ratio is greater than the first segment value and less than or equal to the second segment value, the compression coefficient of the interlayer soil is calculated as shown in formula (7):

[0088] (7);

[0089] When the size relationship is that the compression coefficient of the thick layer is less than that of the thin layer, and the thickness ratio is greater than the second segment value and less than or equal to the third segment value, the compression coefficient of the interlayer soil is calculated according to formula (5);

[0090] When the size relationship is that the compression coefficient of the thick layer is less than that of the thin layer, and the thickness ratio is greater than the third segment value and less than or equal to the fourth segment value, the compression coefficient of the interlayer soil is calculated as shown in formula (8):

[0091] (8);

[0092] in, is the compression coefficient of the interlayer soil, is the compression coefficient of the thick layer, is the compression coefficient of the thin layer.

[0093] Specifically, the first segment value, the second segment value, the third segment value and the fourth segment value can be set according to specific engineering practices; for example, the first segment value is set to 1 / 3, the second segment value is set to 1 / 2, the third segment value is set to 2 / 3, and the fourth segment value is set to 1.

[0094] In an exemplary embodiment, when the property difference is that the properties of the thick layer and the thin layer in the interlayer soil are very different, the layered sum method is used to respectively determine the compression coefficient of each layer in the interlayer soil.

[0095] Specifically, when the difference in properties is that the properties of the thick layer and the thin layer in the interlayer soil are very different, it can be understood that there is no mutual interference between the various soil layers in the interlayer soil, and the compression coefficient of each layer in the interlayer soil can be determined separately according to the idea of ​​stratification.

[0096] In an exemplary embodiment, Figure 2 As shown in Figure 2, the calculation process of the compression coefficient of interlayer soil is as follows:

[0097] S201: Using a geological survey report or a soil compression test, obtain a compression coefficient a1 of a thick layer and a compression coefficient a2 of a thin layer in the interlayer soil.

[0098] S202: Calculate the compression coefficient difference ratio of the interlayer soil using formula (1) , use formula (3) to calculate the thickness ratio of the interlayer soil .

[0099] S203: According to the compression coefficient difference ratio of the interlayer soil , confirm the differences in properties between thick and thin layers in interbedded soils.

[0100] S204: When When <30%, the properties of the thick and thin layers in the interlayer soil are relatively close, and the compression coefficient of the interlayer soil is calculated according to formula (2).

[0101] S205: When 30% ≤ When it is <60%, there are differences in the properties of the thick and thin layers in the interlayered soil.

[0102] S206: Compare the compression coefficient a1 of the thick layer and the compression coefficient a2 of the thin layer.

[0103] S207: When the compression coefficient a1 of the thick layer is greater than or equal to the compression coefficient a2 of the thin layer, the compression coefficient of the interlayer soil is calculated segmentally according to the thickness ratio. ≤1 / 2, calculate the compression coefficient of the interlayer soil according to formula (4); when the thickness ratio is 1 / 2< ≤2 / 3, calculate the compression coefficient of the interlayer soil according to formula (5); when the thickness ratio is 2 / 3< When ≤1, the compression coefficient of the interlayer soil is calculated according to formula (6).

[0104] S208: When the compression coefficient a1 of the thick layer is less than the compression coefficient a2 of the thin layer, the compression coefficient of the interlayer soil is calculated according to the thickness ratio. ≤2 / 3, calculate the compression coefficient of the interlayer soil according to formula (5); when the thickness ratio is 1 / 3< ≤1 / 2, calculate the compression coefficient of the interlayer soil according to formula (7); when the thickness ratio is 2 / 3< When ≤1, the compression coefficient of the interlayer soil is calculated according to formula (8).

[0105] S209: When When the properties of the thick and thin layers in the interlayer soil are very different at 60%, the layer summation method is used to determine the compression coefficient of the interlayer soil.

[0106] Next, various methods are used to calculate the compression coefficient of the interlayer soil. By comparing the compression coefficients of the interlayer soil obtained by different methods with the actual test results of the compression coefficient of the interlayer soil, the accuracy of the compression coefficient of the interlayer soil calculated by the method of the present invention is explained.

[0107] In an exemplary embodiment, the first layer of foundation soil of a coastal project in the south is clay, the second layer is an interlayer of silty clay and silt, and the third layer is silt. The thickness of the silty clay in the second layer is 3m, and the thickness of the silt is 1.2m. According to the in-situ test or soil compression test, combined with the engineering practice experience, the actual test results of each layer are determined: the compression coefficient α1 of the silty clay is 0.18 The compression coefficient of silt is α2, which is 0.13. The compression coefficient α of the second layer of silty clay and silt interlayer is 0.162 .

[0108] The compressibility of this interlayer soil is calculated using different methods:

[0109] (1) Direct averaging method

[0110] Assume that the compression coefficient of silty clay is α1=0.18 , the compression coefficient of silt is α2=0.13 , using the direct average method, the compression coefficient of the interlayer soil is obtained as , comparing the calculation result of the direct averaging method with the actual result, the calculation result of the direct averaging method is smaller than the actual result.

[0111] (2) Ordinary thickness weighted average method without considering the compression coefficient difference ratio and thickness ratio

[0112] Assume that the compression coefficient of silty clay is α1=0.18 , the compression coefficient of silt is α2=0.13 , the thickness of silty clay is h1=1.2m, the thickness of silt is h2=3m, according to the ordinary thickness weighted average method, the compression coefficient of the interlayer soil is obtained 0.166 ,Comparing the calculation results of the ordinary thickness weighted average method with the actual results, it was found that the calculation results of the ordinary thickness weighted average method without considering the compression coefficient difference ratio and thickness ratio were slightly larger than the actual results.

[0113] (3) Calculation method of interlayer soil compression coefficient proposed in this invention

[0114] Assume that the compression coefficient of silty clay is α1=0.18 , the compression coefficient of silt is α2=0.13 , the thickness of silty clay is h1=1.2m, and the thickness of silt is h2=3m.

[0115] According to formula (3), the thickness ratio of the interlayer soil is calculated as .

[0116] The compression coefficient difference ratio of the interlayer soil is calculated according to formula (1):

[0117] .

[0118] The compression coefficient difference ratio of this project is 30% ≤ <60% segment interval, it is determined that there are differences in the properties of the thick and thin layers of interlayer soil, and α1>α2, 1 / 3< ≤1 / 2, that is, the compression coefficient of the interlayer soil is calculated using formula (4) .

[0119] The calculation results obtained by the interlayer soil compression coefficient calculation method proposed in the present invention are compared with the actual results. It is found that the compression coefficient calculation method considering the compression coefficient difference ratio and thickness ratio is closer to the actual result, and is closer to the actual result than the ordinary thickness weighted average method that does not consider the compression coefficient difference ratio and thickness ratio. The calculated compression coefficient of the interlayer soil is improved compared with the compression coefficient of the single silt clay, and the influence of the silt is taken into account to a certain extent. At the same time, the calculated compression coefficient of the interlayer soil is improved compared with the compression coefficient of the single silt clay, which can give full play to the potential of the foundation soil.

[0120] In an exemplary embodiment, in a certain foundation project in a certain place, the first layer of foundation soil distribution is loess, the second layer is interlayered loess and paleosol, the stratification is well developed, the thickness of loess in the second layer is 5m, the thickness of paleosol is 3.5m, and the third layer is paleosol. According to in-situ testing and combined with engineering practice experience, the compression coefficient of loess is determined to be 0.32 , the compression coefficient of the paleosol is 0.18 , the compression coefficient of the second interlayer soil is 0.206 .

[0121] Calculate the compressibility of interlayered soils using different methods;

[0122] (1) Direct averaging method

[0123] Assume that the compression coefficient of loess is α1=0.32 , the compression coefficient of the ancient soil is α2=0.18 , using the direct average method, the compression coefficient of the interlayer soil is obtained 0.25 , comparing the calculation result of the direct averaging method with the actual result, the calculation result of the direct averaging method is smaller than the actual result.

[0124] (2) Ordinary thickness weighted average method without considering the compression coefficient difference ratio and thickness ratio

[0125] Assume that the compression coefficient of loess is α1=0.32 , the compression coefficient of the ancient soil is α2=0.18 The thickness of the paleosol layer is h1=3.5m, and the thickness of the loess layer is h2=5m. According to the ordinary thickness weighted average method, the compression coefficient of the interlayer soil is obtained. 0.262 .

[0126] (3) Calculation method of interlayer soil compression coefficient proposed in this invention

[0127] Assume that the compression coefficient of loess is α1=0.32 , the compression coefficient of the ancient soil is α2=0.18 , the thickness of the paleosol layer is h1=3.5m, and the thickness of the loess layer is h2=5m.

[0128] According to formula (3), the thickness ratio of the interlayer soil is calculated as .

[0129] The compression coefficient difference ratio of the interlayer soil is calculated according to formula (1):

[0130] .

[0131] The compression coefficient difference ratio of this project belongs to 30%≤ <60%, it is judged that the properties of the thick and thin layers in the interlayer soil are not much different. Also, because α1>α2, 2 / 3< ≤1, that is, the compression coefficient of the interlayer soil is calculated using formula (6) .

[0132] By comparing the results obtained by the method for calculating the compression coefficient of interlayer soil proposed in the present invention with the actual results, it is found that the calculation results of the method for calculating the compression coefficient of interlayer soil proposed in the present invention are lower than those of the first two methods and are closer to the actual results. The calculated compression coefficient of interlayer soil is higher than that of ancient soil, and the influence of ancient soil is taken into account to a certain extent. At the same time, the calculated compression coefficient of interlayer soil is milder than that of single loess, which can give full play to the potential of foundation soil.

[0133] When applying the method for calculating the compression coefficient of interlayer soil provided by the present invention, it is not necessary to use Figure 1 The steps are executed in the order shown. The specific execution order of the steps can be determined according to needs, and the present invention does not limit this.

[0134] The above is a method for calculating the compression coefficient of interlayer soil provided by one or more embodiments of the present invention. Based on the same idea, the present invention also provides a corresponding device for calculating the compression coefficient of interlayer soil, such as Figure 3 shown.

[0135] Figure 3 A schematic diagram of a device for calculating the compression coefficient of interlayer soil provided by the present invention comprises:

[0136] An acquisition module 301 is used to obtain a compression coefficient difference ratio of the interlayer soil according to the compression coefficient of the thick layer and the compression coefficient of the thin layer in the interlayer soil;

[0137] A confirmation module 302 is used to determine the difference in properties between the thick layer and the thin layer in the interlayer soil according to the compression coefficient difference ratio of the interlayer soil;

[0138] The calculation module 303 is used to determine the compression coefficient of the interlayer soil according to the calculation method corresponding to the property difference, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer.

[0139] The specific definition of a device for calculating the compression coefficient of interlayer soil can be found in the definition of a method for calculating the compression coefficient of interlayer soil mentioned above, which will not be repeated here. Each module in the above-mentioned device for calculating the compression coefficient of interlayer soil can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0140] The present invention also provides a computer-readable storage medium, which stores a computer program, which can be used to execute the above Figure 1 A calculation method for the compression coefficient of interlayer soil is provided.

[0141] The present invention also provides Figure 4 The structural diagram of the computer device shown in FIG. Figure 4 As shown in the figure, at the hardware level, the computer device includes a processor, an internal bus, a network interface, a memory, and a non-volatile memory, and may also include other hardware required for the business. The processor reads the corresponding computer program from the non-volatile memory into the memory and then runs it to achieve the above Figure 1 A calculation method for the compression coefficient of interlayer soil is provided.

[0142] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0143] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present invention.

Claims

1. A method for calculating the compression coefficient of interlayer soil, characterized in that: include: According to the compression coefficient of the thick layer and the compression coefficient of the thin layer in the interlayer soil, the compression coefficient difference ratio of the interlayer soil is obtained; According to the compression coefficient difference ratio of the interlayer soil, the degree of difference in properties between the thick layer and the thin layer in the interlayer soil is determined; wherein the degree of difference in properties includes: similar properties, differences in properties, and great differences in properties; the calculation formula of the compression coefficient difference ratio is: η2 is the compression coefficient difference ratio of the interlayer soil; Determining the compression coefficient of the interlayer soil according to the calculation formula corresponding to the degree of difference of various properties, the thickness of the thick layer, the thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer specifically includes: When the degree of difference in properties is similar, the thickness of the thick layer, the thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer are substituted into the calculation formula: Obtaining the compression coefficient of the interlayer soil; When the degree of the property difference is that there is a difference in the property, obtaining the magnitude relationship between the compression coefficient of the thick layer of the interlayer soil and the compression coefficient of the thin layer, and calculating the thickness ratio of the interlayer soil according to the thickness of the thick layer and the thickness of the thin layer; Obtaining a calculation formula for the compression coefficient of the interlayer soil corresponding to the size relationship and the thickness ratio, and substituting the compression coefficient of the thick layer and the compression coefficient of the thin layer into the calculation formula for the compression coefficient of the interlayer soil to obtain the compression coefficient of the interlayer soil; When the magnitude relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the first segmentation value and less than or equal to the second segmentation value, the calculation formula of the compression coefficient of the interlayer soil is: When the magnitude relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the second segmentation value and less than or equal to the third segmentation value, the calculation formula for the compression coefficient of the interlayer soil is: When the magnitude relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the third segment value and less than or equal to the fourth segment value, the calculation formula of the compression coefficient of the interlayer soil is: When the magnitude relationship is that the compression coefficient of the thick layer is less than the compression coefficient of the thin layer, and the thickness ratio is greater than the first segmentation value and less than or equal to the second segmentation value, the calculation formula of the compression coefficient of the interlayer soil is: When the magnitude relationship is that the compression coefficient of the thick layer is less than the compression coefficient of the thin layer, and the thickness ratio is greater than the second segmentation value and less than or equal to the third segmentation value, the calculation formula of the compression coefficient of the interlayer soil is: When the magnitude relationship is that the compression coefficient of the thick layer is less than the compression coefficient of the thin layer, and the thickness ratio is greater than the third segment value and less than or equal to the fourth segment value, the calculation formula of the compression coefficient of the interlayer soil is: When the degree of difference in properties is great, the compression coefficient of each layer in the interlayer soil is determined by using the layer summation method; Among them, a is the compression coefficient of the interlayer soil, a1 is the compression coefficient of the thick layer, a2 is the compression coefficient of the thin layer, h1 is the layer thickness of the thin layer, and h2 is the layer thickness of the thick layer.

2. The method according to claim 1, characterized in that Determining the degree of difference in properties between thick layers and thin layers in the interlayer soil according to the compression coefficient difference ratio of the interlayer soil specifically includes: When the compression coefficient difference ratio of the interlayer soil is less than a first preset threshold, it is determined that the properties of the thick layer and the thin layer in the interlayer soil are similar; When the compression coefficient difference ratio of the interlayer soil is greater than or equal to a first preset threshold value and less than a second preset threshold value, it is determined that there is a difference in properties between the thick layer and the thin layer in the interlayer soil; When the compression coefficient difference ratio of the interlayer soil is greater than or equal to a second preset threshold, it is determined that the properties of the thick layer and the thin layer in the interlayer soil are very different.

3. The method according to claim 1, characterized in that The step of calculating the thickness ratio of the interlayer soil according to the thickness of the thick layer and the thickness of the thin layer specifically includes: The ratio between the layer thickness of the thick layer and the layer thickness of the thin layer is determined as the thickness ratio of the interlayered soil.

4. A device for calculating the compression coefficient of interlayer soil, characterized in that: include: An acquisition module, used for obtaining the compression coefficient difference ratio of the interlayer soil according to the compression coefficient of the thick layer and the compression coefficient of the thin layer in the interlayer soil; The confirmation module is used to determine the degree of difference in properties between the thick layer and the thin layer in the interlayer soil according to the compression coefficient difference ratio of the interlayer soil; wherein the degree of difference in properties includes: similar properties, differences in properties, and great differences in properties; the calculation formula of the compression coefficient difference ratio is: η2 is the compression coefficient difference ratio of the interlayer soil; The calculation module is used to determine the compression coefficient of the interlayer soil according to the calculation formula corresponding to the degree of difference of various properties, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer, specifically comprising: when the degree of difference of the properties is similar in properties, the layer thickness of the thick layer, the layer thickness of the thin layer, the compression coefficient of the thick layer and the compression coefficient of the thin layer are substituted into the calculation formula: Obtaining the compression coefficient of the interlayer soil; When the degree of the property difference is that there is a difference in the property, obtaining the magnitude relationship between the compression coefficient of the thick layer of the interlayer soil and the compression coefficient of the thin layer, and calculating the thickness ratio of the interlayer soil according to the thickness of the thick layer and the thickness of the thin layer; Obtaining a calculation formula for the compression coefficient of the interlayer soil corresponding to the size relationship and the thickness ratio, and substituting the compression coefficient of the thick layer and the compression coefficient of the thin layer into the calculation formula for the compression coefficient of the interlayer soil to obtain the compression coefficient of the interlayer soil; When the magnitude relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the first segmentation value and less than or equal to the second segmentation value, the calculation formula of the compression coefficient of the interlayer soil is: When the magnitude relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the second segmentation value and less than or equal to the third segmentation value, the calculation formula for the compression coefficient of the interlayer soil is: When the magnitude relationship is that the compression coefficient of the thick layer is greater than or equal to the compression coefficient of the thin layer, and the thickness ratio is greater than the third segment value and less than or equal to the fourth segment value, the calculation formula of the compression coefficient of the interlayer soil is: When the magnitude relationship is that the compression coefficient of the thick layer is less than the compression coefficient of the thin layer, and the thickness ratio is greater than the first segmentation value and less than or equal to the second segmentation value, the calculation formula of the compression coefficient of the interlayer soil is: When the magnitude relationship is that the compression coefficient of the thick layer is less than the compression coefficient of the thin layer, and the thickness ratio is greater than the second segmentation value and less than or equal to the third segmentation value, the calculation formula of the compression coefficient of the interlayer soil is: When the magnitude relationship is that the compression coefficient of the thick layer is less than the compression coefficient of the thin layer, and the thickness ratio is greater than the third segment value and less than or equal to the fourth segment value, the calculation formula of the compression coefficient of the interlayer soil is: When the degree of difference in properties is great, the compression coefficient of each layer in the interlayer soil is determined by using the layer summation method; Among them, a is the compression coefficient of the interlayer soil, a1 is the compression coefficient of the thick layer, a2 is the compression coefficient of the thin layer, h1 is the layer thickness of the thin layer, and h2 is the layer thickness of the thick layer.

5. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 3 is implemented.

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