CN114417584A - Method and equipment for slope online safety assessment based on pore water pressure meter - Google Patents
Method and equipment for slope online safety assessment based on pore water pressure meter Download PDFInfo
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- CN114417584A CN114417584A CN202210021018.4A CN202210021018A CN114417584A CN 114417584 A CN114417584 A CN 114417584A CN 202210021018 A CN202210021018 A CN 202210021018A CN 114417584 A CN114417584 A CN 114417584A
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Abstract
The method comprises the steps of determining a response surface equation for indicating the relation between the water level value of the side slope and the safety coefficient based on the number and the installation position of pore water pressure meters; acquiring a real-time water level value of a side slope corresponding to each pore water pressure meter; and inputting the real-time water level value corresponding to each pore water pressure meter into the response surface equation for calculation to obtain the real-time safety coefficient of the side slope, so that the response surface equation for calculating the stability of the side slope is constructed based on the pore water pressure meters, and the safety coefficient of the side slope is calculated in real time, so that the stability of the side slope is dynamically evaluated in real time, and the safety in the construction process of the side slope is ensured.
Description
Technical Field
The application relates to the field of computers, in particular to a method and equipment for slope online safety assessment based on a pore water pressure meter.
Background
The condition of meeting with heavy rainfall often can appear in current side slope construction and construction process, and continuous heavy rainfall can make the rainwater infiltration slope internal portion, changes the inside water level line of slope to weaken the shear strength of the soil body, lead to the risk of side slope unstability.
Most of the existing slope construction safety protection is carried out from the perspective of displacement monitoring and construction measures, but the existing protection measures cannot carry out real-time calculation on the safety of the slope along with the change of the water level line in the soil slope, and carry out remote online evaluation through the Internet of things.
Disclosure of Invention
An object of the present application is to provide a method and a device for slope online safety assessment based on a pore water pressure meter, so as to implement a response surface equation for calculating slope stability by constructing based on the pore water pressure meter, and calculate the safety factor of the slope in real time, so as to make real-time dynamic assessment on the slope stability, thereby ensuring the safety during the slope construction process.
According to one aspect of the application, a method for slope online safety assessment based on a pore water pressure meter is provided, wherein the method comprises the following steps:
determining a response surface equation for indicating the relationship between the water level value of the side slope and the safety coefficient based on the number and the installation position of the pore water pressure meters;
acquiring a real-time water level value of a side slope corresponding to each pore water pressure meter;
and inputting the real-time water level value corresponding to each pore water pressure meter into the response surface equation for calculation to obtain the real-time safety coefficient of the side slope.
Further, in the above method for online slope safety assessment based on pore water pressure meters, determining a response surface equation between a water level value of the slope and a safety factor based on the number and the installation position of the pore water pressure meters includes:
determining the number and the installation positions of the pore water pressure meters;
based on the number and the installation position of the pore water pressure meters, at least one group of simulated water level values of the side slope is obtained through a response surface method, and the simulated safety coefficient of the side slope corresponding to each group of simulated water level values is calculated through a limit balance method;
and performing regression operation on the at least one group of simulated water level values and the simulated safety coefficients by a response surface method, and fitting a response surface equation for indicating the relationship between the water level values of the side slope and the safety coefficients.
Further, in the above method for online safety evaluation of a slope based on pore water pressure meters, the determining the number and the installation positions of the pore water pressure meters includes:
determining the number of the pore hydraulic pressure meters according to the evaluation requirement, and presetting the installation positions of the pore hydraulic pressure meters;
and respectively installing at least one pore water pressure meter according to a preset installation position, wherein each installation position corresponds to one pore water pressure meter.
Further, in the method for online slope safety assessment based on pore water pressure meters, the obtaining a real-time water level value of a slope corresponding to each pore water pressure meter includes:
acquiring real-time water pressure of each pore water pressure meter;
and respectively calculating the real-time water level value corresponding to each pore water pressure meter based on the real-time water pressure of each pore water pressure meter.
According to another aspect of the present application, there is also provided a non-volatile storage medium having computer readable instructions stored thereon, which when executed by a processor, cause the processor to implement a method for online slope safety assessment based on a pore water pressure gauge as described above.
According to another aspect of the present application, there is also provided an apparatus for on-line slope safety assessment based on a pore water pressure gauge, wherein the apparatus comprises:
one or more processors;
a non-volatile storage medium for storing one or more computer-readable instructions,
when executed by the one or more processors, the one or more computer readable instructions cause the one or more processors to implement a method for online slope safety assessment based on pore water pressure gauge as described above.
Compared with the prior art, the method and the device have the advantages that based on the number and the installation position of the pore water pressure meters, a response surface equation for indicating the relation between the water level value of the side slope and the safety coefficient is determined; acquiring a real-time water level value of a side slope corresponding to each pore water pressure meter; and inputting the real-time water level value corresponding to each pore water pressure meter into the response surface equation for calculation to obtain the real-time safety coefficient of the side slope, so that the response surface equation for calculating the stability of the side slope is constructed based on the pore water pressure meters, and the safety coefficient of the side slope is calculated in real time, so that the stability of the side slope is dynamically evaluated in real time, and the safety in the construction process of the side slope is ensured.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 illustrates a schematic flow diagram of a method for online slope safety assessment based on a pore water gauge, according to one aspect of the present application;
FIG. 2 illustrates a schematic view of the installation of a pore water pressure gauge in an embodiment of a method for online safety assessment of a slope based pore water pressure gauge according to one aspect of the present application;
fig. 3 shows a sample schematic diagram of a simulated water level value and a simulated safety factor in a practical application scenario of a method for online slope safety assessment based on a pore water pressure gauge according to an aspect of the present application.
The same or similar reference numbers in the drawings identify the same or similar elements.
Detailed Description
The present application is described in further detail below with reference to the attached figures.
In a typical configuration of the present application, the terminal, the device serving the network, and the trusted party each include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include non-transitory computer readable media (transient media), such as modulated data signals and carrier waves.
As shown in fig. 1, according to one aspect of the present application, there is provided a schematic flow chart of a method for online safety evaluation of a slope based on a pore water pressure gauge. Wherein the method comprises the following steps: step S11, step S12, and step S13 specifically include the steps of:
and step S11, determining a response surface equation for indicating the relationship between the water level value of the side slope and the safety factor based on the number and the installation position of the pore water pressure meters.
The number of the pore water pressure meters is determined according to the evaluation requirement of an owner, wherein the evaluation requirement refers to the water level line precision of the side slope section, and the increase of the pore water pressure meters can improve the water level line precision of the whole side slope section; the number and the installation position of the pore water pressure meters can directly influence the shape of the water line during modeling in the section of the side slope. After the number of the pore water pressure meters is determined according to the evaluation requirement of an owner, a simulated water level line shape in a side slope section is established based on the number and the installation position of the pore water pressure meters, a response surface equation for indicating the relationship between the water level value of the water level line of the side slope and the safety coefficient of the side slope is determined according to the established simulated water level line, wherein the water level value of the water level line corresponding to each pore water pressure meter corresponds to each input variable of the response surface equation, so that the relationship between the water level value of the water level line in the side slope and the safety coefficient of the side slope capable of reflecting the stability of the side slope is visually reflected through the form of the response surface equation, the safety coefficient of the side slope is monitored in real time according to the real-time water level line of the side slope, and the real-time monitoring of the stability of the side slope is realized. For example, in one embodiment of the present application, as shown in FIG. 2, 3 pore hydraulic gauges 1 are installed inside the slope to build the response surface equation from the 3 pore hydraulic gauges and their locations.
And step S12, acquiring the real-time water level value of the slope corresponding to each pore water pressure meter.
And S13, inputting the real-time water level value corresponding to each pore water pressure meter into the response surface equation for calculation to obtain the real-time safety coefficient of the side slope.
The constructed response surface equation is embedded into the monitoring platform of the Internet of things in a programming mode, the real-time water level value corresponding to each pore water pressure meter is input into the monitoring platform as an input variable, the real-time safety coefficient of the side slope is obtained through calculation of the response surface equation in the detection platform, and the real-time safety coefficient of the side slope is displayed through the webpage end interface, so that the online safety evaluation of the side slope stability is realized.
Through the steps S11 to S13, the response surface equation for indicating the relation between the water level value of the side slope and the safety factor is determined based on the number and the installation position of the pore water pressure meters; acquiring a real-time water level value of a side slope corresponding to each pore water pressure meter; and inputting the real-time water level value corresponding to each pore water pressure meter into the response surface equation for calculation to obtain the real-time safety coefficient of the side slope, so that the response surface equation for calculating the stability of the side slope is constructed based on the pore water pressure meters, and the safety coefficient of the side slope is calculated in real time, so that the stability of the side slope is dynamically evaluated in real time, and the safety in the construction process of the side slope is ensured.
Following the above embodiments of the present application, wherein the step S11 determines a response surface equation between the water level value of the slope and the safety factor based on the number and the installation position of the pore water pressure meters, includes:
determining the number and the installation positions of the pore water pressure meters;
based on the number and the installation position of the pore water pressure meters, at least one group of simulated water level values of the side slope is obtained through a response surface method, and the simulated safety coefficient of the side slope corresponding to each group of simulated water level values is calculated through a limit balance method;
and performing regression operation on the at least one group of simulated water level values and the simulated safety coefficients by a response surface method, and fitting a response surface equation for indicating the relationship between the water level values of the side slope and the safety coefficients.
After the pore water pressure meters are installed on the slope, at least one group of simulated water level values of the slope is obtained through a response surface method Design test based on the number of the pore water pressure meters and the installation positions of the pore water pressure meters in the slope, wherein the Design test method comprises but is not limited to a central complex Design method (Central complex Design method), a Box-Behnken Design method (Box-Behnken Design) and other test Design methods, and at least one group of simulated water level values are obtained through the Design test, wherein each simulated water level value designed in the test corresponds to one group of simulated water level values, and each group of simulated water level values comprises the water level value of the simulated water level value corresponding to each pore water pressure meter. According to the principle of the limit balance method, the corresponding slope stability of the slope under the condition of different simulated water level lines is calculated, namely, the simulation safety factors of the slopes respectively corresponding to different simulation water level lines are calculated, so as to obtain the corresponding relation between each group of simulation water level values of the slopes and each simulation safety factor, obtaining the simulation safety factor of the side slope corresponding to each group of simulation water level values, wherein the algorithm for calculating the stability of the side slope according to the principle of the limit balance method comprises but is not limited to a Ferrenus (Fellenius) method, a Bishop (Bishop) method, a Taylor (Taylor) method, a Janbu (Janbu) method, a Morganston-Pris (Morgensten-Price) method, a Spander (Spencer) method, a Salmar (Sarma) method, a wedge method, a plane straight line method, a transfer coefficient method, a Becker-Garber (Baker-Garber) critical sliding surface method and other slope stability algorithms.
It should be noted that the simulated water level value corresponding to each pore water pressure meter is respectively used as an input variable, regression operation is performed on at least one group of obtained simulated water level values and the simulated safety coefficients corresponding to each group of simulated water level values through a response surface method, a response surface equation with the slope water level value as the input variable and the slope safety coefficient as the response variable is fitted, and therefore the relationship between the slope water level value and the slope safety coefficient is reflected through the response surface equation.
For example, in a preferred embodiment of the present application, as shown in FIG. 3, according to 3 pore hydraulic gauges and their mounting positions, pass throughDesigning a response surface by a central composite design method in response surface test design, wherein the corresponding simulated water level value of each pore water pressure gauge in each group of design tests is h1、h2And h3And calculating slope safety factors corresponding to the simulated water level values of each group of the 3 pore water pressure meters according to a Bishop (Bishop) method in the principle of a limit balance method, and taking the simulated water level values of each group and the corresponding safety factors as a sample group. Counting the test data of 20 sample groups, performing regression operation on the test data of 20 sample groups by a response surface method, and fitting a slope water level value h1、h2、h3And a response surface equation of the relation between the slope water level and the slope safety coefficient FS further reflects the influence of the slope water level line on the slope stability. Wherein the fitted water level value h of the side slope1、h2、h3The concrete formula of the response surface equation of the relation between the response surface equation and the slope safety factor FS is as follows:
following the above embodiments of the present application, wherein the determining the number and the installation position of the pore water pressure meters in step S11 includes:
determining the number of the pore hydraulic pressure meters according to the evaluation requirement, and presetting the installation positions of the pore hydraulic pressure meters;
and respectively installing at least one pore water pressure meter according to a preset installation position, wherein each installation position corresponds to one pore water pressure meter.
After the number of the required pore hydraulic meters is determined according to the evaluation requirement, the installation positions of the pore hydraulic meters are preset according to the number of the pore hydraulic meters, and the pore hydraulic meters are respectively installed at the corresponding installation positions.
For example, in a preferred embodiment of the present application, 3 pore hydraulic pressure meters are selected for measurement according to the evaluation requirement, the installation position of each pore hydraulic pressure meter is preset, and the 3 pore hydraulic pressure meters are respectively installed at the preset installation positions, so that the real-time monitoring of the slope water level is realized through the pore hydraulic pressure meters.
Following the above embodiment of the present application, wherein the obtaining a real-time water level value of a slope corresponding to each pore water pressure gauge includes:
acquiring real-time water pressure of each pore water pressure meter;
and respectively calculating the real-time water level value corresponding to each pore water pressure meter based on the real-time water pressure of each pore water pressure meter.
And obtaining the distance between each pore water pressure meter and the water surface according to the pore water pressure P, the density, the gravity acceleration and the distance between the pore water pressure meter and the water surface, and obtaining the real-time water level value corresponding to each pore water pressure meter.
In a preferred embodiment of the present application, as shown in fig. 2, 3 pore hydraulic pressure meters 1 are installed inside a slope, positions of the pore hydraulic pressure meters are calculated according to the 3 pore hydraulic pressure meters, a simulated water level value is designed by a center composite design method in a response surface method, 20 sets of simulated water level values corresponding to the 3 pore hydraulic pressure meters are obtained, simulated safety coefficients corresponding to each set of simulated water level values are calculated according to a Bishop (Bishop) method in a limit balance method principle, regression operation is performed on the simulated water level values and the simulated safety coefficients by the response surface method, further, the influence of the water level values of the slope water level line as input variables and the safety coefficients as response surface equations are obtained, further, the real-time water level value of the slope real-time water level line 2 corresponding to the pore hydraulic pressure meters is obtained in real time, and the real-time water level value is input into the response surface equation, the safety factor of the side slope is monitored in real time, and the safety of side slope construction is guaranteed.
In a practical application scenario of the present application, the present application includes a sensor system and a wireless platform control system. The sensor system comprises a pore water pressure meter, wireless communication equipment and a controller; the wireless communication equipment is connected with the pore water pressure meter through a lead and is arranged at a water level measuring point. The wireless platform control system comprises a webpage end interface and an analysis program; the webpage end interface is used for displaying the real-time monitoring data and the converted real-time safety coefficient; and the analysis program comprises a customized response surface design and a built-in algorithm solver. This application is based on the demand of side slope stability, and the embedding is through the response surface equation of water level value calculation side slope stability in long-range wireless platform control system to through hole hydrostatic meter real-time supervision side slope water level value, calculate the real-time factor of safety of side slope in order to realize at the construction stage, and transmit the result to cloud platform in real time through wireless platform, thereby realize carrying out real-time dynamic aassessment to the security of side slope.
According to another aspect of the present application, there is also provided a non-volatile storage medium having computer readable instructions stored thereon, which when executed by a processor, cause the processor to implement a method for online slope safety assessment based on a pore water pressure gauge as described above.
According to another aspect of the present application, there is also provided an apparatus for on-line slope safety assessment based on a pore water pressure gauge, wherein the apparatus comprises:
one or more processors;
a non-volatile storage medium for storing one or more computer-readable instructions,
when executed by the one or more processors, the one or more computer readable instructions cause the one or more processors to implement a method for online slope safety assessment based on pore water pressure gauge as described above.
For details of each embodiment of the apparatus for online slope safety assessment based on a pore water pressure gauge, reference may be made to corresponding parts of the above embodiment of the method for online slope safety assessment based on a pore water pressure gauge, and details are not repeated here.
In summary, the response surface equation for indicating the relationship between the water level value of the side slope and the safety coefficient is determined based on the number and the installation position of the pore water pressure meters; acquiring a real-time water level value of a side slope corresponding to each pore water pressure meter; and inputting the real-time water level value corresponding to each pore water pressure meter into the response surface equation for calculation to obtain the real-time safety coefficient of the side slope, so that the response surface equation for calculating the stability of the side slope is constructed based on the pore water pressure meters, and the safety coefficient of the side slope is calculated in real time, so that the stability of the side slope is dynamically evaluated in real time, and the safety in the construction process of the side slope is ensured.
It should be noted that the present application may be implemented in software and/or a combination of software and hardware, for example, implemented using Application Specific Integrated Circuits (ASICs), general purpose computers or any other similar hardware devices. In one embodiment, the software programs of the present application may be executed by a processor to implement the steps or functions described above. Likewise, the software programs (including associated data structures) of the present application may be stored in a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. Additionally, some of the steps or functions of the present application may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
In addition, some of the present application may be implemented as a computer program product, such as computer program instructions, which when executed by a computer, may invoke or provide methods and/or techniques in accordance with the present application through the operation of the computer. Program instructions which invoke the methods of the present application may be stored on a fixed or removable recording medium and/or transmitted via a data stream on a broadcast or other signal-bearing medium and/or stored within a working memory of a computer device operating in accordance with the program instructions. An embodiment according to the present application comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform a method and/or a solution according to the aforementioned embodiments of the present application.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Claims (6)
1. A method for slope online safety assessment based on a pore water pressure meter, wherein the method comprises the following steps:
determining a response surface equation for indicating the relationship between the water level value of the side slope and the safety coefficient based on the number and the installation position of the pore water pressure meters;
acquiring a real-time water level value of a side slope corresponding to each pore water pressure meter;
and inputting the real-time water level value corresponding to each pore water pressure meter into the response surface equation for calculation to obtain the real-time safety coefficient of the side slope.
2. The method of claim 1, wherein determining a response surface equation between a slope water level value and a safety factor based on the number and installation location of pore water pressure meters comprises:
determining the number and the installation positions of the pore water pressure meters;
based on the number and the installation position of the pore water pressure meters, at least one group of simulated water level values of the side slope is obtained through a response surface method, and the simulated safety coefficient of the side slope corresponding to each group of simulated water level values is calculated through a limit balance method;
and performing regression operation on the at least one group of simulated water level values and the simulated safety coefficients by a response surface method, and fitting a response surface equation for indicating the relationship between the water level values of the side slope and the safety coefficients.
3. The method of claim 2, wherein the determining the number and mounting locations of the pore water pressure meters comprises:
determining the number of the pore hydraulic pressure meters according to the evaluation requirement, and presetting the installation positions of the pore hydraulic pressure meters;
and respectively installing at least one pore water pressure meter according to a preset installation position, wherein each installation position corresponds to one pore water pressure meter.
4. The method of claim 1, wherein the obtaining of the real-time water level value of the slope corresponding to each pore water pressure gauge comprises:
acquiring real-time water pressure of each pore water pressure meter;
and respectively calculating the real-time water level value corresponding to each pore water pressure meter based on the real-time water pressure of each pore water pressure meter.
5. A non-transitory storage medium having stored thereon computer readable instructions which, when executed by a processor, cause the processor to implement the method of any one of claims 1 to 4.
6. An apparatus for on-line slope safety assessment based on pore water pressure gauge, wherein the apparatus comprises:
one or more processors;
a non-volatile storage medium for storing one or more computer-readable instructions,
when executed by the one or more processors, cause the one or more processors to implement the method of any one of claims 1-4.
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| CN202210021018.4A CN114417584A (en) | 2022-01-10 | 2022-01-10 | Method and equipment for slope online safety assessment based on pore water pressure meter |
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| CN202210021018.4A CN114417584A (en) | 2022-01-10 | 2022-01-10 | Method and equipment for slope online safety assessment based on pore water pressure meter |
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