CN113360967A - Soft soil foundation consolidation settlement generation method, device and medium - Google Patents
Soft soil foundation consolidation settlement generation method, device and medium Download PDFInfo
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- CN113360967A CN113360967A CN202110394732.3A CN202110394732A CN113360967A CN 113360967 A CN113360967 A CN 113360967A CN 202110394732 A CN202110394732 A CN 202110394732A CN 113360967 A CN113360967 A CN 113360967A
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Abstract
The invention relates to a soft soil foundation consolidation settlement generation method, a device and a medium technical scheme, comprising the following steps: determining input rock and soil parameters and rock and soil mechanical parameters; according to the calculation instruction, one or more of total settlement calculation of the foundation, total settlement calculation of the foundation and settlement compensation calculation are executed; and generating a table calculation book. The invention has the beneficial effects that: the computing efficiency of soft soil foundation treatment is improved, and an efficient and reliable analysis tool is provided for engineering designers; the advantage of using table calculation is that parameter linkage is realized, calculation optimization and inspection are facilitated, and data display is more visual and convenient.
Description
Technical Field
The invention relates to the field of computers, in particular to a soft soil foundation consolidation settlement generation method, a device and a medium.
Background
The prior art is low in calculation efficiency of processing the soft soil foundation, a visual calculation book cannot be formed in the calculation process of the soft soil foundation, and parameter linkage can not be realized for displaying by combining the existing form tool.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art, provides a soft soil foundation consolidation settlement generation method, a device and a medium, improves the calculation efficiency of soft soil foundation treatment, and provides an efficient and reliable analysis tool for engineering designers.
The technical scheme of the invention comprises a soft soil foundation consolidation settlement generation method, which comprises the steps of foundation total settlement calculation, foundation average consolidation degree calculation and settlement compensation calculation, and is characterized in that: determining soil layer mechanical parameters according to input rock and soil basic parameters; the total settlement of the foundation calculation comprises: determining the received drilling hole number and the settlement starting point elevation according to the received geological section map; comprehensively determining the total sum of layers according to soil layer properties and roadbed width, and calculating the total settlement of the foundation according to the input roadbed width and initial additional load; the calculation of the average consolidation of the foundation includes: calculating the average consolidation degree of the foundation according to the vertical and radial consolidation coefficients of the received soft soil layer, the input drainage plate interval, the drainage plate arrangement mode, the diameter of the drainage plate, the depth of an inserting plate of the drainage plate, the thickness of the soft soil layer below the plate bottom, the consolidation time and the additional stress ratio; the settlement compensation calculation includes: and according to the road design elevation and the road soft foundation treatment load standard, equating the road subgrade and the pavement structure layer to the thickness of the mound earthwork. Simulating a construction step-by-step stacking process by adopting an iteration method, calculating the settlement compensation amount, further determining the final stacking thickness, and guiding the site construction; the calculation of total settlement of foundation, the calculation of average consolidation degree of foundation and the calculation of settlement compensation are interactively represented in a table form.
According to the soft soil foundation consolidation settlement generation method, determining soil layer mechanical parameters comprises the following steps: and performing input according to each soil layer parameter provided by the geotechnical engineering investigation report, and automatically generating corresponding soil layer mechanical parameters according to the geological exploration drilling, wherein the soil layer and the corresponding soil layer mechanical parameters thereof comprise at least one.
According to the soft soil foundation consolidation settlement generation method, the total settlement of the foundation is calculated by any one calculation mode of an e-p curve, a compression modulus and an e-lgP method.
According to the soft soil foundation consolidation settlement generation method, the total settlement calculation input of the foundation further comprises the following steps: and selecting one or more corresponding soil layers and corresponding soil layer mechanical parameters through an interactive interface, wherein the selection sequence of the soil layers forms the engineering geological section map.
According to the soft soil foundation consolidation settlement generation method, the calculation of the total settlement of the foundation further comprises the following steps: the effective drainage diameter is determined according to the diameter of the drainage plate and the arrangement mode of the drainage plate.
According to the soft soil foundation consolidation settlement generation method, the additional stress ratio is obtained by simplifying the stacking load into uniform load on a rectangular area, the foundation is equivalent to a semi-infinite space elastomer, and the additional stress is solved by adopting a Buxinus solution.
According to the soft soil foundation consolidation settlement generation method, the average consolidation degree of the foundation comprises vertical consolidation degree calculation, radial consolidation degree calculation and consolidation degree calculation below the bottom surface of a sand well.
According to the soft soil foundation consolidation settlement generation method, the load of the thickness of the heaped earthwork comprises the thickness of medium coarse sand, the filling height of a roadbed, the thickness of a pavement structure layer, an overload prepressing value and a settlement coefficient, and the settlement coefficient can be set in a user-defined mode.
The technical scheme of the invention also comprises a soft soil foundation consolidation settlement generation device which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, and is characterized in that the processor executes any one of the method steps when the computer program is executed.
The present invention also includes a computer-readable storage medium, in which a computer program is stored, wherein the computer program, when executed by a processor, implements any of the method steps.
The invention has the beneficial effects that: the computing efficiency of soft soil foundation treatment is improved, and an efficient and reliable analysis tool is provided for engineering designers; the advantage of using table calculation is that parameter linkage is realized, calculation optimization and inspection are facilitated, and data display is more visual and convenient.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
FIG. 1 illustrates an overall flow diagram according to an embodiment of the invention;
FIG. 2 is a flow chart illustrating operation according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a computer book according to an embodiment of the present invention;
FIGS. 4a and 4b are schematic diagrams and flowcharts illustrating settlement calculations according to embodiments of the present invention;
FIG. 5 is a schematic diagram illustrating an input of an average consolidation parameter of a foundation according to an embodiment of the present invention;
FIG. 6 is a schematic view showing a composition of a road mound earth according to an embodiment of the present invention;
fig. 7a, 7b, 7c, 7d, and 7e respectively show an additional stress value calculation manner, an additional stress value calculation diagram, a vertical consolidation degree calculation formula, a radial consolidation degree calculation formula, and a consolidation degree calculation formula below the bottom surface of a sand well according to an embodiment of the present invention;
fig. 8 shows a diagram of an apparatus according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the drawings are provided for the purpose of visually supplementing the description with figures and detailed description, and wherein the detailed description is given in order to provide an intuitive and visual understanding of each and every feature and every aspect of the present invention, and not for the purpose of limiting the scope of the invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number.
In the description of the present invention, the consecutive reference numbers of the method steps are for convenience of examination and understanding, and the implementation order between the steps is adjusted without affecting the technical effect achieved by the technical solution of the present invention by combining the whole technical solution of the present invention and the logical relationship between the steps.
In the description of the present invention, unless otherwise explicitly defined, terms such as set, etc. should be broadly construed, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the detailed contents of the technical solutions.
Referring to fig. 1, the main process of the present invention includes: determining input physical and mechanical parameters of rock and soil; according to the calculation instruction, one or more of total settlement calculation of the foundation, total settlement calculation of the foundation and settlement compensation calculation are executed; and generating a table calculation book.
Referring to fig. 2, the technical solution disclosed in the present invention includes the following processes:
(1) selecting a working path for selecting rock and soil parameters and a generation path of a calculation book;
(2) the method comprises the steps of inputting physical mechanical parameters of the rock and soil in batches, and generating soil layer information and automatically generating corresponding physical mechanical parameters of the rock and soil according to geological exploration drilling;
(3) calculating the total settlement of the soft soil foundation, and determining the received drilling hole number and the settlement starting point elevation according to the received geological section diagram; comprehensively determining the total sum of layers according to soil layer properties and roadbed width, and calculating the total settlement of the foundation according to the input roadbed slope bottom width and initial additional load;
layering summation method: as with the e-p curve and compressive modulus of FIG. 2, embodiments may also employ the e-lgP method;
(4) calculating the average consolidation degree of the foundation, namely calculating the average consolidation degree of the foundation according to the vertical and radial consolidation coefficients of the received soft soil layer, the input drainage plate distance, the drainage plate arrangement mode, the diameter of the drainage plate, the insertion plate depth of the drainage plate, the thickness of the soft soil layer below the plate bottom, the consolidation time and the additional stress ratio, and calculating the vertical consolidation degree and the radial consolidation degree;
(5) a settlement compensation calculation, the settlement compensation calculation comprising: according to the road elevation and the road soft foundation processing load standard, the road subgrade and the road surface structure layer are equivalent to the thickness of the mound-loaded earthwork, and according to the load of the thickness of the mound-loaded earthwork, the settlement compensation calculation is carried out by adopting an iteration method
(6) And (5) calculating book generation.
Referring to fig. 3, taking excel as an example, according to the technical solution of the present invention, the excel is associated with excel, entry and calculation of parameters are realized in excel, and data display thereof refers to fig. 3.
Referring to fig. 4b, the process includes:
inputting rock parameters;
according to the geological section diagram, a drilling hole number is input, and the height h1 of a settlement starting point is as follows: the original ground elevation at the drill hole;
referring to the schematic diagram of fig. 4a, the total layering sum method layering thickness is comprehensively determined according to soil layer properties and roadbed width. Inputting the width of the slope bottom of the roadbed and an initial additional load P0 according to design data provided by the road specialties; if the road soft foundation treatment has the intersection elevation as the limiting condition, the initial additional load can be recorded 5 as the initial value of iterative computation, and the later settlement compensation computation can be accurately computed; if the elevation is not used as a settlement control index, the additional load can be directly input after the upper load is sorted.
Selecting a calculation method, compiling two calculation methods of an e-p curve and a compression modulus according to the technical rules of design and construction of the soft soil foundation embankment of the highway (JTG/T D31-02-2013), and increasing the calculation function of the e-lgP method in the later period. The e-P curve calculation method has a settlement compensation calculation function, and the compression modulus method can only calculate the total settlement;
and (4) inputting soil layer information, reading rock-soil base layer parameters, and displaying all soil layer names after the rock-soil name column. According to the engineering geological profile, the name of the first layer of soil layer is clicked from top to bottom, the elevation of the soil layer bottom is recorded, and after a return key is pressed, a corresponding soil layer parameter list appears in a text box. And repeating the operation, and selecting a second soil layer … … until all soil layers within the settlement calculation depth range are recorded.
FIG. 5 is a schematic diagram of the input of the average consolidation degree parameter of the foundation according to the embodiment of the present invention. Inputting the vertical and radial consolidation coefficients of the soft soil layer, inputting the distance d between the drainage plates, the arrangement mode of the drainage plates, the diameter dw of the drainage plates, the depth H1 of the insertion plates of the drainage plates, the thickness H2 of the soft soil layer below the plate bottom, the consolidation time t and the additional stress ratio alpha. Single click "calculate" generated consolidated settlement calculation book. If the consolidation degree does not meet the design requirement, the parameters can be adjusted and recalculated.
After the diameter dw of the drainage body is input, software can automatically calculate the effective drainage diameter de according to the arrangement mode of the drainage plate, so the parameter can not be recorded. Through tests, the consolidation degree is insensitive to the alpha parameter of the additional stress ratio, 1 can be input during trial calculation, if accurate calculation is needed, the additional stress values of the top surface and the bottom surface of the soft foundation can be consulted from a calculation book generated by 'total settlement calculation of the foundation', the pile loading is simplified into uniform load on a rectangular area by the additional stress values, the foundation is equivalent to a semi-infinite space elastomer, the additional stress is solved by adopting a Buxineske solution, and the additional stress value calculation refers to a figure 7a and a figure 7 b.
The average consolidation parameter of the foundation in the embodiment of the invention includes vertical consolidation calculation, radial consolidation calculation formula and consolidation calculation under the bottom surface of the sand well, and the calculation modes refer to fig. 7c, fig. 7d and fig. 7e respectively.
Fig. 6 is a schematic diagram respectively showing the composition of the road earthwork for stacking according to the embodiment of the invention, and the road soft foundation processing usually uses the stacking top surface elevation as a control index, and the traffic elevation is determined by the road design elevation. Due to the nonlinear relationship between foundation settlement and load, the preloading earthwork thickness under the condition cannot be directly solved. The software simulates the process of applying the bulk-loaded earthwork for multiple times by adopting an iteration method, thereby accurately calculating the final bulk-loaded earthwork thickness and providing a basis for calculating the settlement compensation amount.
Referring to fig. 6, before the soft foundation settlement calculation, the standard of the load of the soft foundation treatment of the road should be determined, and the standard is equal-load prepressing or overload prepressing. The road subgrade and the pavement structure layer are equivalent to the thickness of the heaped earthwork, and the load comprises the following parts:
(1) the thickness of the medium coarse sand h0 is generally 0.5m, and the gravity is 20.
(2) And the roadbed filling height h1 is determined according to the professional contribution of the road.
(3) And the thickness h2 of the pavement structure layer is determined according to the professional provisions of roads.
(4) And the overload prepressing value is a vacuum load value by default.
(5) The sedimentation coefficient can be evaluated according to local experience.
After calculation, the settlement compensation calculation is automatically carried out by adopting an iteration method.
Fig. 7a, 7b, 7c, and 7d respectively show an additional stress value calculation manner, an additional stress value calculation schematic diagram, a vertical consolidation degree calculation formula, a radial consolidation degree calculation formula, and a consolidation degree calculation formula below the sand well bottom surface according to an embodiment of the present invention, where, for fig. 7a and 7b, m is l/b, n is z/b, where l is a long side of a rectangle, and b is a short side of the rectangle; for FIG. 7c, the vertical average consolidation degree U of the foundation is calculated under the vertical consolidation conditionvα is the ratio of the additional stress at the drainage surface to the additional stress at the waterproofing surface; cvIs a vertical consolidation coefficient (m)2S); h is the maximum seepage diameter (m) of pore water, the thickness of the compression layer is taken when single-side drainage is carried out, and the thickness of the compression layer is taken as half of that when double-side drainage is carried out; t is the consolidation time(s). For 7d, when the vertical drainage body is arranged in a foundation in a sand well or other forms, the radial consolidation degree U isr，CrIs the radial consolidation coefficient (m)2S); n is the well diameter ratio, i.e. the effective drainage diameter d of the sand welleDiameter d of sand wellwThe ratio of (A) to (B); deEffective drainage diameter (m) of sand wells, d when sand wells are arranged in a square on a planee1.128 d; when arranged in an equilateral triangle, de1.05 d; d is the sand well spacing (m). 7e, the consolidation degree of the foundation below the bottom surface of the sand well is UvCalculate UvWater discharge distance H', H1、H2The depth of the sand well and the thickness (m) of a compressed soil layer below the sand well are shown.
Fig. 8 is a diagram of an apparatus according to an embodiment of the present invention. The apparatus comprises a memory 100 and a processor 200, wherein the processor 200 stores a computer program for performing: determining soil layer mechanical parameters according to input rock and soil basic parameters; the total settlement calculation of the foundation comprises the following steps: determining the received drilling hole number and the settlement starting point elevation according to the received geological section map; comprehensively determining the total sum of layers according to soil layer properties and roadbed width, and calculating the total settlement of the foundation according to the input roadbed slope bottom width and initial additional load; the calculation of the average consolidation degree of the foundation comprises the following steps: calculating the average consolidation degree of the foundation according to the vertical and radial consolidation coefficients of the received soft soil layer, the input drainage plate interval, the drainage plate arrangement mode, the diameter of the drainage plate, the depth of an inserting plate of the drainage plate, the thickness of the soft soil layer below the plate bottom, the consolidation time and the additional stress ratio; the settlement compensation calculation includes: according to the road elevation and the road soft foundation processing load standard, the road subgrade and the road surface structure layer are equivalent to the thickness of the mound earthwork, and settlement compensation calculation is carried out by adopting an iteration method according to the load of the thickness of the mound earthwork; and the calculation of total settlement of foundation, the calculation of average consolidation degree of foundation and the calculation of settlement compensation are interactively represented in a tabular form. Wherein the memory 100 is used for storing data.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A soft soil foundation consolidation settlement generation method comprises the steps of foundation total settlement calculation, foundation average consolidation degree calculation and settlement compensation calculation, and is characterized in that:
determining soil layer mechanical parameters according to input rock and soil basic parameters;
the total settlement of the foundation calculation comprises: determining the received drilling hole number and the settlement starting point elevation according to the received geological section map; comprehensively determining the total sum of layers according to soil layer properties and roadbed width, and calculating the total settlement of the foundation according to the input roadbed width and initial additional load;
the calculation of the average consolidation of the foundation includes: calculating the average consolidation degree of the foundation according to the vertical and radial consolidation coefficients of the received soft soil layer, the input drainage plate interval, the drainage plate arrangement mode, the diameter of the drainage plate, the depth of an inserting plate of the drainage plate, the thickness of the soft soil layer below the plate bottom, the consolidation time and the additional stress ratio;
the settlement compensation calculation includes: and according to the road design elevation and the road soft foundation treatment load standard, equating the road subgrade and the pavement structure layer to the thickness of the mound earthwork. Simulating a construction step-by-step stacking process by adopting an iteration method, calculating the settlement compensation amount, further determining the final stacking thickness, and guiding the site construction;
the calculation of total settlement of foundation, the calculation of average consolidation degree of foundation and the calculation of settlement compensation are interactively represented in a table form.
2. The soft soil foundation consolidation settlement generation method of claim 1, wherein the determining soil layer mechanical parameters comprises: and performing input according to each soil layer parameter provided by the geotechnical engineering investigation report, and automatically generating corresponding soil layer mechanical parameters according to the geological exploration drilling, wherein the soil layer and the corresponding soil layer mechanical parameters thereof comprise at least one.
3. A soft soil foundation consolidation settlement generating method as claimed in claim 1, characterized in that said calculation of total settlement of the foundation is implemented by any one of the calculation methods of e-p curve, compression modulus and e-lgP method.
4. A soft soil foundation consolidation settlement generating method as claimed in claim 1, wherein said total foundation settlement calculation inputs further comprise: and selecting one or more corresponding soil layers and corresponding soil layer mechanical parameters through an interactive interface, wherein the selection sequence of the soil layers forms the engineering geological section map.
5. A soft soil foundation consolidation settlement generating method as claimed in claim 1, wherein said calculation of total foundation settlement further comprises: the effective drainage diameter is determined according to the diameter of the drainage plate and the arrangement mode of the drainage plate.
6. A soft soil foundation consolidation settlement generating method as claimed in claim 1, characterized in that said additional stress ratio is obtained by simplifying the surcharge load to a uniform load over a rectangular area, equating the foundation to a semi-infinite space elastomer, and solving the additional stress by using a bucinnaske solution.
7. A soft soil foundation consolidation settlement generating method as claimed in claim 1, wherein said average degree of consolidation of the foundation includes vertical degree of consolidation calculation, radial degree of consolidation calculation and degree of consolidation calculation below the sand well bottom surface.
8. A soft soil foundation consolidation settlement generating method according to claim 1, wherein the load of the heaped earthwork thickness comprises medium coarse sand thickness, roadbed filling height, pavement structure layer thickness, overload prepressing value and settlement coefficient, and the settlement coefficient can be set by self-definition.
9. A soft soil foundation consolidation settlement generating device comprising a memory, a processor and a computer program stored in said memory and executable on said processor, wherein said processor when executing said computer program implements the method steps of any of claims 1 to 8.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 8.
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