CN110942261A - Method, device and equipment for evaluating safety state of dike - Google Patents
Method, device and equipment for evaluating safety state of dike Download PDFInfo
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Abstract
The invention discloses an evaluation method, a device and equipment for the safety state of an embankment, wherein the evaluation method comprises the following steps: acquiring each evaluation index of the dike to be evaluated and a reference index corresponding to the evaluation index; carrying out non-dimensionalization processing on each evaluation index; calculating the correlation coefficient of the evaluation index and the reference index thereof; and evaluating the safety state of the dike to be evaluated according to the correlation coefficient. According to the technical scheme of the embodiment of the invention, the evaluation index is obtained and subjected to non-dimensionalization processing, the reference index is set, the correlation coefficient of the evaluation index and the reference index is calculated, and the safety state of the embankment is evaluated according to the correlation coefficient, so that the quantitative and automatic evaluation of the safety state of the embankment is realized, and the comprehensive evaluation and the high accuracy are realized.
Description
Technical Field
The embodiment of the invention relates to the technical field of dike evaluation, in particular to a method, a device and equipment for evaluating the safety state of a dike.
Background
The conventional embankment inspection and insurance inspection work is mostly carried out in a manual mode, for example, the conditions of failure and wave prevention are probed by feet, the conditions of leakage, slippage, falling pits, cracks, piping and the like are visually observed, inspection results are submitted in a paper form, and only whether certain event occurs or not is selected, and a small amount of subjective language description is added. For example, if a crack occurs at a certain position of a certain dike, an inspector can check the option of abnormal situation after one row on the slope of the dike in a patrol table, and simply describe the crack situation in the column of hidden danger description.
The manual patrol report generation is not standardized, and when a plurality of teams work simultaneously, problems such as mistakes and omissions or repetition may occur. The descriptions of the hidden dangers in the table cannot be digitalized, and the collected information is difficult to calculate and analyze and cannot be used for subsequent risk quantitative prediction.
Disclosure of Invention
The invention provides a method, a device and equipment for evaluating the safety state of an embankment, which are used for realizing the automatic, quantitative and comprehensive evaluation of the safety state of the embankment.
In a first aspect, an embodiment of the present invention provides a method for evaluating a security state of a bank, where the method includes:
acquiring each evaluation index of the dike to be evaluated and a reference index corresponding to the evaluation index;
carrying out non-dimensionalization processing on each evaluation index;
calculating the correlation coefficient of the evaluation index and the reference index thereof;
and evaluating the safety state of the embankment according to the correlation coefficient.
In a second aspect, an embodiment of the present invention further provides an apparatus for evaluating a security state of an embankment, where the apparatus includes:
the index acquisition module is used for acquiring each evaluation index of the dike to be evaluated and a reference index corresponding to the evaluation index;
the index preprocessing module is used for carrying out non-dimensionalization processing on each evaluation index;
the correlation coefficient calculation module is used for calculating the correlation coefficients of the evaluation indexes and the reference indexes thereof;
and the safety evaluation module is used for evaluating the safety state of the embankment according to the correlation coefficient.
In a third aspect, an embodiment of the present invention further provides an apparatus for evaluating a security state of a bank, where the apparatus includes:
one or more processors;
a memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors implement the method for evaluating the security state of the bank provided by any embodiment of the present invention.
According to the technical scheme of the embodiment of the invention, the evaluation index is obtained and subjected to non-dimensionalization processing, the reference index is set, the correlation coefficient of the evaluation index and the reference index is calculated, and the safety state of the embankment is evaluated according to the correlation coefficient, so that the quantitative and automatic evaluation of the safety state of the embankment is realized, and the comprehensive evaluation and the high accuracy are realized.
Drawings
Fig. 1 is a flowchart of a method for evaluating a security status of a bank according to a first embodiment of the present invention;
fig. 2 is a flowchart of a method for evaluating a security state of a bank according to a second embodiment of the present invention;
fig. 3 is a schematic view of an apparatus for evaluating the safety state of an embankment according to a third embodiment of the present invention;
fig. 4 is a schematic diagram of an evaluation apparatus for a safety state of a bank in the fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a method for evaluating a bank security state according to an embodiment of the present invention, where the embodiment is applicable to a case of evaluating a bank security state, and the method may be executed by a device for evaluating a bank security state, where the device may be implemented by software and/or hardware, and as shown in fig. 1, the method specifically includes the following steps:
and 110, acquiring each evaluation index of the dike to be evaluated and a corresponding reference index.
The assessment indexes refer to relevant parameters of the embankment to be assessed, and mainly consider relevant parameters of conditions such as leakage, Huatuo, drop nest, cracks and piping, and the like, and can include crack width and length, depression length, width, high speed and the like, and can also include information such as meteorological hydrological data and embankment structure data. The reference index means that the value of the evaluation index subjected to the dimensionless processing has a serious influence on the safety of the bank when the reference index is used. Taking the crack length as an example, the reference index corresponding to the crack length may be a maximum value that can be reached by the crack length or a value obtained by dimensionless processing of a corresponding value at a boundary value that has a significant influence on the state of the bank. Further, the reference index may default to a maximum value, such as 1.
Optionally, obtaining each evaluation index of the dike to be evaluated includes:
acquiring basic information of the dike to be evaluated, the water level outside the dike and the rainfall; and acquiring the safety index of the dike to be evaluated, wherein the basic information, the water level outside the dike, the rainfall and the safety index are the evaluation indexes of the dike to be evaluated.
Wherein the basic information includes one or more of a height of the dike, a width of the top of the dike, a slope of an upstream surface, a cohesive force of the filling material of the dike, an internal friction angle of the filling material of the dike, a cohesive force of the filling material behind the dike, and an internal friction angle of the filling material behind the dike.
Optionally, the safety indicators include: one or more of crack initiation pile number, crack length, crack width, crack depth, recess initiation pile number, recess length, recess width, recess depth, and piping initiation pile number.
Specifically, the depression may include a bump, a chip, or a void.
Specifically, the safety index of the dike to be evaluated can be obtained in a manual inspection mode. A safety index table may be established in advance, wherein the table includes the name of each safety index and the data to be input. A large number of professional sensors including deformation sensors, seepage sensors, water level sensors and the like can be arranged on the dike to be evaluated, so that evaluation index information of the dike is collected, and the collected data is transmitted in real time to carry out subsequent safety state evaluation. The basic information of the dike to be evaluated can be acquired in a pre-input mode; the water level outside the dike can be obtained through a corresponding sensor or a measuring tool; the rainfall can be acquired through a meteorological platform. Further, the rainfall may be daily average rainfall, hourly average rainfall or real-time rainfall.
Furthermore, each safety index in the safety index table should be a refined item to be detected, and a simple, visual and clear mode should be adopted, so as to facilitate field operation of non-professional personnel. It will be appreciated that each dike to be assessed will often comprise a plurality of piles to be inspected, each of which is provided with a pile number to locate or distinguish. The form of the specific safety index table is shown in table 1. It should be noted that table 1 is merely an example and is not intended to limit the embodiments of the present invention. When the field personnel carry out the dike inspection, corresponding records are required to be carried out according to the safety index table. The safety index table comprises the name, code number, record value and corresponding remark information of the safety index. If the crack occurrence pile number is the safety index name, x1The 'crack occurrence pile number' is the code number of the safety index, and the '002' is the data which needs to be input by field operators or related users, and can also comprise remark information so as to describe the specific state of the embankment in more detail.
Table 1 embankment inspection safety index table
Date: 8 and 18 months in 2018
| Safety index | Record value | Remarks for note |
| Number x of crack occurrence pile1 | 002 | |
| Crack length x2(m) | 0.5 | |
| Crack width x3(m) | 0.2 | |
| Crack depth x4(m) | 0.1 | |
| Number x of sunken pile5 | 008 | In the form of cavities |
| Length x of recess6(m) | -0.23 | |
| Recess width x7(m) | -0.31 | |
| Depth x of depression8(m) | -0.15 | |
| Number x of piping generation pile9 | 008 |
The depressions in table 1 do not merely mean concave defects, but may be convex defects including bumps, holes, and deformities. When the corresponding parameters (the length of the recess, the width of the recess, and the depth of the recess) are negative values, concave defects such as deformities and voids are represented; when positive, it is indicated as a convex defect, such as a bump.
And 120, carrying out non-dimensionalization processing on each evaluation index.
The non-dimensionalization processing refers to that data described by different dimensions are described by a uniform standard. The non-dimensionalization process can employ various methods of normalization or normalization.
Specifically, an extremization method may be adopted, that is, the maximum value and the minimum value of each evaluation index are used for processing; or a standardization method is adopted, namely, the standardization is carried out according to the tie value and the standard deviation of each evaluation index; or an averaging method is adopted, namely each evaluation index is divided by the average value thereof to carry out non-dimensionalization treatment; the non-dimensionalization may be performed by a standard deviation method, that is, a method of dividing each evaluation index by its standard deviation. The present application does not limit the specific method of the dimensionless processing.
And step 130, calculating the correlation coefficient of the evaluation index and the reference index thereof.
The correlation coefficient is a physical quantity that characterizes a relationship between the evaluation index and the reference index.
Optionally, the expression of the correlation coefficient is:
therein, ζ0i(j) Represents the jth evaluation index uijAnd a reference index u0jThe correlation coefficient of (2).
And 140, evaluating the safety state of the embankment to be evaluated according to the correlation coefficient.
The safety state of the embankment refers to the current working state of the embankment, so as to evaluate whether the embankment can continue to work or needs maintenance. One evaluation index corresponds to one correlation coefficient, and therefore, the number of the correlation coefficients is plural. Then an evaluation of the security status of the bank to be evaluated needs to be performed on the basis of the respective correlation coefficient.
Specifically, the average correlation coefficient may be obtained by averaging the correlation coefficients, and the security state of the bank to be evaluated may be evaluated according to the value of the average correlation coefficient. The upper limit value of the correlation coefficient of each evaluation index can be set, and when the correlation coefficient has an upper limit value larger than the corresponding correlation coefficient, the safety state of the embankment to be evaluated needs to be evaluated according to the correlation coefficient.
According to the technical scheme of the embodiment of the invention, the evaluation index is obtained and subjected to non-dimensionalization processing, the reference index is set, the correlation coefficient of the evaluation index and the reference index is calculated, and the safety state of the embankment is evaluated according to the correlation coefficient, so that the quantitative and automatic evaluation of the safety state of the embankment is realized, and the comprehensive evaluation and the high accuracy are realized.
Example two
Fig. 2 is a flowchart of a method for evaluating a security state of a bank according to a second embodiment of the present invention, which is a further refinement of the previous embodiment, and as shown in fig. 2, the method for evaluating a security state of a bank includes the following steps:
and step 210, obtaining each evaluation index of the dike to be evaluated and a corresponding reference index.
The conversion function is a relational expression used for representing the evaluation index and the embankment safety correlation degree. The value range of the conversion function can be [0,1], and the larger the conversion function is, the more dangerous the evaluation index is, and the larger the influence on the safety state of the embankment to be evaluated is.
Exemplary, post number x occurs as a crack1And crack length x2For example, the number x of the crack-generating pile1The crack occurrence location and the distance of the evaluation point of the bank to be evaluated can be characterized. Number x of crack occurrence pile1The expression of the transfer function of (1) is as follows:
wherein x is1Pile number for crack occurrence, u (x)1) Number of piles x occurring for cracks1D is the distance between the pile to be checked and the evaluation point, a is the danger distance, and b is the safety distance. The evaluation point may be one of the piles to be evaluated of the dykes to be evaluated.
The critical distance a represents the position at which the crack is currently occurring, which has a great influence on the safety of the evaluation point of the bank or can lead to the occurrence of a dangerous situation, while the safe distance represents little or no influence.
Further, the dangerous distance may be set to 0, 1m, or other values, and the safe distance may be set to 500m, 1000m, 1500m, or other values.
Crack length x2The expression of the transfer function of (1) is as follows:
wherein x is2Is the crack length, u (x)2) Is the length x of the crack2A conversion function of l1For the length of the dangerous crack,/2Safe crack length.
Wherein the length l of the dangerous crack1Indicating crackingThe length of the seam has a great influence on the safety of the evaluation point of the dyke or can lead to a dangerous situation, while the safety crack length l2It indicates little or no effect.
Further, the hazardous crack length may be set at 2, 3m or other values, and the safe crack length may be set at 1m, 0.5m, 0.3m or other values.
Further, different evaluation indexes can adopt a combined conversion function, for example, the crack length, the crack width and the crack depth are all used for describing the crack condition, and can be described by adopting a combined conversion function.
And 230, carrying out non-dimensionalization processing on the evaluation index according to the conversion function.
Specifically, through the processing of the conversion function, the evaluation indexes described by different units are converted into dimensionless data, which may be data between 0 and 1. And the reference index values are all 1.
And 240, calculating the correlation coefficient of the evaluation index and the reference index thereof.
And step 250, determining weighted association coefficients according to the association coefficients.
Because certain relation exists between the evaluation indexes of the dikes to be evaluated, and the influence degrees on the safety states of the dikes are different, for example, the influence degree of rainfall information is lower than the influence degree of the crack length. Therefore, the weight of the correlation coefficient of each evaluation index can be determined from experience or analysis of historical data, and the weighted correlation coefficient can be determined.
Illustratively, let U be the reference sequence consisting of individual reference indices0＝(u0j) Wherein j is 1,2, …, m, and the comparison sequence composed of each dimensionless evaluation index is Ui＝(uij) Wherein the evaluation index with the same lower subscript j corresponds to the reference index. Then, the correlation coefficient of each evaluation index can be calculated, and the specific formula is as follows:
therein, ζ0i(j) Represents the jth evaluation index uijAnd a reference index u0jThe correlation coefficient of (2). The weight of each reference coefficient may be set to 1 by default, and then by averaging the correlation coefficients,
a weighted correlation coefficient may be obtained. Of course, it is also possible to set a weight for each correlation coefficient, i.e. to set a weight for each correlation coefficient
Wherein, wjNamely the evaluation index uijZeta correlation coefficient0i(j) The weight of (c).
And step 260, evaluating the safety state of the embankment to be evaluated according to the weighted correlation coefficient.
Optionally, the evaluating the security state of the bank to be evaluated according to the weighted association coefficient includes:
pre-establishing a mapping relation between the weighted association coefficient and the security level; and determining the safety level of the dike to be evaluated according to the weighted correlation coefficient and the mapping relation.
The security level of the embankment can be classified into 3, 5, 7 or other values. Taking stage 5 as an example, stage 1: the dike is slightly damaged, and no repairing measures are needed; and 2, stage: the dike is slightly damaged, but the repair measures are not required to be taken immediately, and the personnel can be arranged for repairing after the flood season passes; and 3, level: the dike is damaged more, but the dike is not broken, and the repair can be arranged as soon as possible under the permission of human resources; 4, level: the embankment is seriously damaged, and if the embankment is not repaired immediately, the danger of bank breaking is likely to happen, and the repair measures need to be taken immediately; and 5, stage: the embankment is seriously damaged, so that the danger of embankment breaking can be generated quickly, the repair is not in time, and the rescue team needs to be immediately called up to take remedial measures.
Specifically, the weighted correlation coefficient or the correlation coefficient represents the security risk of level 5 in the interval (0.9, 1), the security risk of level 4 in the interval (0.8,0.9), the security risk of level 3 in the interval (0.65,0.8), the security risk of level 2 in the interval (0.5,0.65), and the security risk of level 1 in the interval (0, 0.5).
Optionally, the method for evaluating the anti-security state further includes:
and drawing a dyke safety level distribution diagram according to the safety level of the dyke.
Specifically, after the safety level of each evaluation point or pile to be checked of the dike to be evaluated is evaluated, the safety level distribution map of each pile to be checked of the dike to be evaluated can be obtained. The thermodynamic diagram can be drawn for display and displayed in a visual and intuitive form.
Specifically, different security levels in the embankment security level distribution map may correspond to different colors, for example, a security level of 5, such as 5: red; 4, level: orange color; and 3, level: yellow; and 2, stage: green; level 1: blue in color. Of course, other colors may be used, and the embodiment of the present invention is not limited thereto.
According to the technical scheme of the embodiment of the invention, the conversion function of each evaluation index is determined, and the non-dimensionalization processing is carried out on each evaluation index according to the conversion function, so that each index is unified and standardized, and the subsequent state evaluation is facilitated; by setting the reference index, calculating the correlation coefficient of the reference index and the dimensionless evaluation index, calculating the weighted correlation coefficient, and evaluating the safety state of the embankment according to the weighted correlation coefficient, scientific and comprehensive automatic evaluation of the safety state of the embankment is realized, and the accuracy of the evaluation result is high.
EXAMPLE III
Fig. 3 is a schematic diagram of an apparatus for evaluating a security state of a bank according to a third embodiment of the present invention, as shown in fig. 3, the apparatus includes: the system comprises an index acquisition module 310, an index preprocessing module 320, a correlation coefficient calculation module 330 and a security evaluation module 340.
The index obtaining module 310 is configured to obtain each evaluation index of the dike to be evaluated and a reference index corresponding to the evaluation index; an index preprocessing module 320, configured to perform non-dimensionalization processing on each of the evaluation indexes; a correlation coefficient calculation module 330, configured to calculate a correlation coefficient of the evaluation index and the reference index thereof; a security evaluation module 340, configured to evaluate the security state of the bank according to the correlation coefficient.
According to the technical scheme of the embodiment of the invention, the evaluation index is obtained and subjected to non-dimensionalization processing, the reference index is set, the correlation coefficient of the evaluation index and the reference index is calculated, and the safety state of the embankment is evaluated according to the correlation coefficient, so that the quantitative and automatic evaluation of the safety state of the embankment is realized, and the comprehensive evaluation and the high accuracy are realized.
Optionally, the index obtaining module 310 is specifically configured to:
acquiring basic information of the dike to be evaluated, the water level outside the dike and the rainfall; and acquiring the safety index of the dike to be evaluated, wherein the basic information, the water level outside the dike, the rainfall and the safety index are the evaluation indexes of the dike to be evaluated.
Optionally, the safety indicators include: one or more of crack initiation pile number, crack length, crack width, crack depth, recess initiation pile number, recess length, recess width, recess depth, and piping initiation pile number.
Optionally, the index preprocessing module 320 is specifically configured to:
determining a conversion function of each evaluation index; and carrying out non-dimensionalization processing on the evaluation index according to the conversion function.
Optionally, the value of the conversion function corresponding to the reference index is a maximum value.
Optionally, the expression of the correlation coefficient is:
therein, ζ0i(j) Represents the jth evaluation index uijAnd a reference index u0jThe correlation coefficient of (2).
Optionally, the security evaluation module 340 includes:
a weighting coefficient determining unit for determining a weighted correlation coefficient according to each of the correlation coefficients; and the safety evaluation unit is used for evaluating the safety state of the embankment to be evaluated according to the weighted correlation coefficient.
Optionally, the security evaluation unit is specifically configured to:
pre-establishing a mapping relation between the weighted association coefficient and the security level;
and determining the safety level of the dike to be evaluated according to the weighted correlation coefficient and the mapping relation.
The evaluation device for the safety state of the embankment provided by the embodiment of the invention can execute the evaluation method for the safety state of the embankment provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
Example four
Fig. 4 is a schematic structural diagram of an apparatus for evaluating a security state of a bank according to a fourth embodiment of the present invention, as shown in fig. 4, the apparatus includes a processor 410, a memory 420, an input device 430, and an output device 440; the number of the device processors 410 may be one or more, and one processor 410 is taken as an example in fig. 4; the processor 410, the memory 420, the input device 430 and the output device 440 in the apparatus may be connected by a bus or other means, for example, in fig. 4.
The memory 420 serves as a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the evaluation method for the bank security state in the embodiment of the present invention (for example, the index obtaining module 310, the index preprocessing module 320, the association coefficient calculating module 330, and the security evaluating module 340 in the evaluation apparatus for the bank security state). The processor 410 executes various functional applications of the device and data processing by running software programs, instructions and modules stored in the memory 420, that is, implements the above-described ground-bank security state evaluation method.
The memory 420 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 420 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 420 may further include memory located remotely from the processor 410, which may be connected to the device/terminal/server via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input means 430 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the apparatus. The output device 440 may include a display device such as a display screen.
EXAMPLE five
An embodiment of the present invention also provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method for evaluating a bank security state, the method including:
acquiring each evaluation index of the dike to be evaluated and a reference index corresponding to the evaluation index;
carrying out non-dimensionalization processing on each evaluation index;
calculating the correlation coefficient of the evaluation index and the reference index thereof;
and evaluating the safety state of the dike to be evaluated according to the correlation coefficient.
Of course, the embodiment of the present invention provides a storage medium containing computer-executable instructions, where the computer-executable instructions are not limited to the operations of the method described above, and may also perform related operations in the method for predicting a geological disaster provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the apparatus for evaluating the safety state of the bank, the included units and modules are only divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for evaluating a security state of an embankment, comprising:
acquiring each evaluation index of the dike to be evaluated and a reference index corresponding to the evaluation index;
carrying out non-dimensionalization processing on each evaluation index;
calculating the correlation coefficient of the evaluation index and the reference index thereof;
and evaluating the safety state of the dike to be evaluated according to the correlation coefficient.
2. The method according to claim 1, wherein said obtaining each evaluation index of the dykes to be evaluated comprises:
acquiring basic information of the dike to be evaluated, the water level outside the dike and the rainfall;
and acquiring the safety index of the dike to be evaluated, wherein the basic information, the water level outside the dike, the rainfall and the safety index are the evaluation indexes of the dike to be evaluated.
3. The method of claim 2, wherein the security metric comprises: one or more of crack initiation pile number, crack length, crack width, crack depth, recess initiation pile number, recess length, recess width, recess depth, and piping initiation pile number.
4. The method according to claim 1, wherein the non-dimensionalizing each of the evaluation indicators includes:
determining a conversion function of each evaluation index;
and carrying out non-dimensionalization processing on the evaluation index according to the conversion function.
5. The method according to claim 4, wherein the value of the transfer function corresponding to the reference indicator is a maximum value.
6. The method of claim 1, wherein the correlation coefficient is expressed by:
therein, ζ0i(j) Represents the jth evaluation index uijAnd a reference index u0jThe correlation coefficient of (2).
7. A method according to claim 1, wherein said evaluating the security status of said bank to be evaluated according to said correlation coefficient comprises:
determining a weighted correlation coefficient according to each correlation coefficient;
and evaluating the safety state of the dike to be evaluated according to the weighted correlation coefficient.
8. A method according to claim 7, wherein said evaluating the security status of said dykes to be evaluated according to said weighted correlation coefficients comprises:
pre-establishing a mapping relation between the weighted association coefficient and the security level;
and determining the safety level of the dike to be evaluated according to the weighted correlation coefficient and the mapping relation.
9. An apparatus for evaluating a safety state of an embankment, comprising:
the index acquisition module is used for acquiring each evaluation index of the dike to be evaluated and a reference index corresponding to the evaluation index;
the index preprocessing module is used for carrying out non-dimensionalization processing on each evaluation index;
the correlation coefficient calculation module is used for calculating the correlation coefficients of the evaluation indexes and the reference indexes thereof;
and the safety evaluation module is used for evaluating the safety state of the embankment according to the correlation coefficient.
10. An apparatus for evaluating a security state of a bank, comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a method of assessing the security status of a bank as claimed in any one of claims 1 to 8.
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