CN114547529A - Earth-rock dam seepage analysis method and device considering hysteresis effect, storage medium and equipment - Google Patents
Earth-rock dam seepage analysis method and device considering hysteresis effect, storage medium and equipment Download PDFInfo
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- CN114547529A CN114547529A CN202210143160.6A CN202210143160A CN114547529A CN 114547529 A CN114547529 A CN 114547529A CN 202210143160 A CN202210143160 A CN 202210143160A CN 114547529 A CN114547529 A CN 114547529A
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Abstract
The invention relates to an earth-rock dam seepage analysis method, an earth-rock dam seepage analysis device, an earth-rock dam seepage analysis storage medium and earth-rock dam seepage analysis equipment considering a hysteresis effect. The method is suitable for the field of dam safety monitoring. The technical scheme adopted by the invention is as follows: an earth-rock dam seepage analysis method considering hysteresis effect is characterized in that: acquiring an upstream water level monitoring data sequence X of the earth and rock dam, measuring point arrangement information of each measuring point in the earth and rock dam and time delay t corresponding to the water level dataiLater measuring point osmotic pressure water level monitoring data sequence Yi(ii) a Based on earth and rockfill dam upstream water level monitoring data sequence X and measuring point osmotic pressure water level monitoring data sequence Y of each measuring point in earth and rockfill damiDetermining the actual seepage lag time tau of each measuring point; and drawing a dam body seepage line under the characteristic water level based on the actual seepage lag time of each measuring point and the measuring point arrangement information, calculating the seepage speed and the slope drop, and analyzing and evaluating the stability of seepage.
Description
Technical Field
The invention relates to an earth-rock dam seepage analysis method, an earth-rock dam seepage analysis device, an earth-rock dam seepage analysis storage medium and earth-rock dam seepage analysis equipment considering a hysteresis effect. The method is suitable for the field of dam safety monitoring.
Background
In the design and construction process of the earth-rock dam, a piezometer pipe or an osmometer is arranged to monitor the conditions of the osmotic pressure water level of the dam body and the dam foundation. The measured osmotic pressure water level of various monitoring facilities generally has hysteresis, and at present, the influence of the osmotic flow hysteresis effect is basically not considered in the osmotic flow analysis of the earth and rockfill dam, so that the analysis of a dam body infiltration line, an osmotic slope and the like can generate deviation, the phenomenon which is inconsistent with the design and the actual situation occurs, and a certain influence exists on the osmotic flow analysis result, so that a new thought and a new method are needed to be found in the osmotic flow analysis of the earth and rockfill dam to consider the influence of the osmotic flow hysteresis effect.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the existing problems, the earth-rock dam seepage analysis method, the device, the storage medium and the equipment considering the hysteresis effect are provided.
The technical scheme adopted by the invention is as follows: an earth-rock dam seepage analysis method considering hysteresis effect is characterized in that:
acquiring an upstream water level monitoring data sequence X of the earth and rock dam, measuring point arrangement information of each measuring point in the earth and rock dam and time delay t corresponding to the water level dataiLater measuring point osmotic pressure water level monitoring data sequence Yi；
Based on earth and rockfill dam upstream water level monitoring data sequence X and measuring point osmotic pressure water level monitoring data sequence Y of each measuring point in earth and rockfill damiDetermining the actual seepage lag time tau of each measuring point;
and drawing a dam body infiltration line under the characteristic water level based on the actual seepage lag time of each measuring point and the measuring point arrangement information, calculating the seepage speed and the slope, and analyzing and evaluating the stability of seepage.
The earth and rockfill dam based upstream water level monitoring data sequence X and the measuring point osmotic pressure water level monitoring data sequence Y of each measuring point in the earth and rockfill damiDetermining the actual seepage lag time tau of each measuring point, comprising the following steps:
calculating X and YiMutual information of I (X; Y)i) And YiInformation entropy of H (Y)i) By the formula
Calculating X to YiConstructing a directed information transfer index function DITI (t) under different lag times;
when the DITI (t) function has the first maximum, the coupling degree between different information is the highest, the information transmission amount is the maximum, and the corresponding time t isiτ is the real seepage lag time τ of the measuring point.
The method comprises the following steps of drawing a dam body infiltration line under a characteristic water level based on the actual seepage lag time of each measuring point and the measuring point arrangement information, calculating seepage speed and slope drop, and analyzing and evaluating the stability of seepage, and comprises the following steps:
based on the obtained actual lag time tau of each seepage point of the dam, the actual lag time of each seepage point is subtracted from the actual measured time sequence of each seepage point of the dam, a measured value process line of each seepage point time sequence of the dam is reconstructed, and the influence of a seepage lag effect is eliminated.
According to the reconstructed time sequence measuring process line of each seepage point of the dam body, selecting the corresponding water level of each seepage point of the dam body under the characteristic water level, drawing the real water level distribution (seepage line) of the dam body under the characteristic water level, calculating the seepage speed by adopting a formula real distribution seepage diameter/the real distribution seepage diameter according to the real water level distribution and the actual lag time tau, calculating the slope drop by adopting the formula real distribution water level difference/the real distribution seepage diameter, and analyzing and evaluating the seepage stability.
The utility model provides a consider earth and rockfill dam seepage flow analytical equipment of hysteresis effect which characterized in that:
a data acquisition module for acquiring upstream water level monitoring data sequence X of the earth and rockfill dam, measuring point arrangement information of each measuring point in the earth and rockfill dam and time delay t corresponding to the water level dataiLater measuring point osmotic pressure water level monitoring data sequence Yi；
A lag time determination module for determining a measurement point osmotic pressure water level monitoring data sequence Y based on the upstream water level monitoring data sequence X of the earth-rock dam and the measurement points in the earth-rock damiDetermining the actual seepage lag time tau of each measuring point;
and the subsequent processing module is used for drawing a dam body infiltration line under the characteristic water level based on the actual seepage lag time of each measuring point and the measuring point arrangement information, calculating the seepage speed and the slope drop, and analyzing and evaluating the stability of seepage.
The lag time determination module includes:
a data calculation module for calculating X and YiMutual information of I (X; Y)i) And YiInformation entropy of H (Y)i) By the formula
Calculating X to YiConstructing a directed information transfer index function DITI (t) under different lag times;
a lag time solving module for obtaining the maximum coupling degree between different information when the DITI (t) function obtains the first maximum value, and the information transmission amount reaches the maximum, at which the corresponding time tiτ is the real seepage lag time τ of the measuring point.
The post-processing module comprises:
and the seepage lag effect eliminating module is used for subtracting the actual lag time of each measuring point from the measured time sequence of each seepage measuring point of the dam based on the actual lag time tau of each seepage measuring point of the dam calculated by the lag time determining module, reconstructing a measuring process line of the time sequence of each seepage measuring point of the dam and eliminating the influence of the seepage lag effect.
And the result calculation and display module is used for selecting the water level corresponding to each seepage measurement point of the dam body under the characteristic water level according to the reconstructed time sequence measurement process line of each seepage measurement point of the dam body, drawing the real water level distribution (infiltration line) of the dam body under the characteristic water level, calculating the seepage speed by adopting the formula real distribution seepage diameter/the real distribution seepage diameter according to the real water level distribution and the real lag time tau, calculating the slope drop by adopting the formula real distribution water level difference/the real distribution seepage diameter, and analyzing and evaluating the seepage stability.
A storage medium having stored thereon a computer program executable by a processor, the computer program comprising: the computer program is executed with the steps of the earth and rockfill dam seepage analysis method taking hysteresis effects into account.
An earth and rockfill dam seepage analysis apparatus taking hysteresis effects into account, having a memory and a processor, wherein the memory has stored thereon a computer program executable by the processor, characterized in that: the computer program when executed implements the steps of the earth and rockfill dam seepage analysis method taking into account hysteresis effects.
The invention has the beneficial effects that: the invention provides a principle of optimizing seepage monitoring facility arrangement, firstly evaluating the reliability of a monitoring data sequence before analysis, grasping the information transfer characteristic in the seepage process of an earth-rock dam, constructing an information transfer model between the upstream water level monitoring information of the earth-rock dam and the seepage pressure water level monitoring information of the dam body, quantitatively calculating the seepage hysteresis effect of the earth-rock dam, considering the hysteresis effect in the seepage process of the earth-rock dam in the analysis and evaluation, more accurately determining an earth-rock dam seepage line and calculating seepage related parameters, and providing a new idea for the seepage analysis of the earth-rock dam.
Drawings
Fig. 1 is a flow chart of earth and rockfill dam seepage analysis considering the hysteresis effect in the embodiment.
Fig. 2 is a schematic diagram of the earth-rock dam body seepage monitoring arrangement in the embodiment.
FIG. 3 is a diagram showing the DITI variation process of the upstream water level and the osmotic pressure water level at point C in FIG. 2.
FIG. 4 is a graph showing the comparison of the saturation lines determined by different methods.
Detailed Description
As shown in fig. 1, the present embodiment is an earth and rockfill dam seepage analysis method considering hysteresis effect, which specifically includes the following steps:
s1, obtaining at T1,T2,…,TnAt any moment, the upstream water level monitoring data sequence X of the dam body is { X ═ X1,x2,…,xnThe method comprises the following steps of (1) taking the input matrix as an information source input matrix; obtaining T1,T2,…,TnAt the moment, a dam body measuring point seepage water level monitoring data sequence Y of each measuring point (measuring point A, B, C, D, E in fig. 2) in the dam body is (Y ═ Y)1,y2,…,ynThe information is used as an information action matrix; obtaining T1+ti,T2+ti,…,Tn+tiAt any moment, a dam body measuring point osmotic pressure water level monitoring data sequence of each measuring point in the dam body is constructed, and a dam body measuring point osmotic pressure water level monitoring data sequence Y is constructed with a delay ti(i-1, 2, …, m) and the following monitoring data sequence
S2, based on the upstream water level monitoring data sequence X of the earth and rockfill dam and the measuring point osmotic pressure water level monitoring data sequence Y of each measuring point in the earth and rockfill damiDetermining the actual seepage lag time tau of each measuring point, comprising the following steps:
calculating edge distribution f of dam upstream water level monitoring data sequence X by adopting Gaussian kernel function methodX(x) And osmotic pressure water level delay tiThe latter data sequence YiEdge distribution of
Similarly, the method of Gaussian kernel function is adopted to calculate X and YiJoint distribution of
Using a formula
Calculating YiInformation entropy of H (Y)i) By the formula
Calculating X and YiOf the joint distributed mutual information I (X; Y)i)；
Using a formula
Calculating X to YiDirected message passing index of (1);
constructing a directed information transfer index function DITI (t) based on directed information transfer indexes under different lag times; FIG. 3 is DITI distribution of upstream water level of dam and osmotic pressure water level of C measuring point under different lag time, and directional information transfer exponential function is formed by fitting;
according to the information transfer principle, when the information transfer exponential function DITI (t) obtains the first maximum value, the coupling between the two information sets is the highest, the directed information transfer amount reaches the maximum, the corresponding time is the actual delay time tau of the seepage of the measuring point, and the actual delay time tau meets the requirement of the actual delay time tau
S3, drawing a dam body saturation line (see figure 4) under a characteristic water level based on the actual seepage lag time of each measuring point and the measuring point arrangement information, calculating seepage speed and slope drop, and analyzing and evaluating the stability of seepage, wherein the method comprises the following steps:
based on the obtained actual lag time of each seepage point of the dam, the actual lag time of each seepage point is subtracted from the actual measured time sequence of each seepage point of the dam, a measured value process line of each seepage point time sequence of the dam is reconstructed, and the influence of a seepage lag effect is eliminated.
According to the reconstructed time sequence measuring process line of each seepage point of the dam body, selecting the corresponding water level of each seepage point of the dam body under the characteristic water level, drawing the real water level distribution (seepage line) of the dam body under the characteristic water level, calculating the seepage speed by adopting the formula real distribution seepage diameter/the delay time according to the real water level distribution and the actual delay time, calculating the slope drop by adopting the formula real distribution water level difference/the real distribution seepage diameter, and analyzing and evaluating the seepage stability.
The seepage pressure water level behind the impervious body of the earth and rockfill dam is generally smaller, and the seepage flow monitoring behind the impervious body is preferably in a combined arrangement form of a piezometer pipe or a piezometer pipe and an osmometer. And if abnormal or error data exists in the actual monitoring data, the reliability of the monitoring data is evaluated before seepage analysis, and abnormal measured values are eliminated.
The embodiment also provides an earth and rockfill dam seepage analysis device considering the hysteresis effect, which comprises a data acquisition module, a hysteresis time determination module and a subsequent processing module.
In this example, the data acquisition module is used for acquiring an upstream water level monitoring data sequence X of the earth and rockfill dam, measuring point arrangement information of each measuring point in the earth and rockfill dam and water levelDelay t corresponding to dataiLater measuring point osmotic pressure water level monitoring data sequence Yi(ii) a The lag time determining module is used for monitoring the data sequence X based on the upstream water level of the earth-rock dam and the measuring point osmotic pressure water level monitoring data sequence Y of each measuring point in the earth-rock damiDetermining the actual seepage lag time tau of each measuring point; and the subsequent processing module is used for drawing a dam body infiltration line under the characteristic water level based on the actual seepage lag time of each measuring point and the measuring point arrangement information, calculating the seepage speed and the slope drop, and analyzing and evaluating the stability of seepage.
In this embodiment, the lag time determining module comprises a data calculating module and a lag time solving module, wherein the data calculating module is used for calculating X and YiMutual information of I (X; Y)i) And YiInformation entropy of H (Y)i) By the formula
Calculating X to YiConstructing a directed information transfer index function DITI (t) under different lag times; the lag time solving module is used for obtaining the maximum coupling degree between different information when the function DITI (t) obtains the first maximum value, the information transmission amount reaches the maximum, and the corresponding time t at the momentiτ is the real seepage lag time τ of the measuring point.
The present embodiment also provides a storage medium having stored thereon a computer program executable by a processor, the computer program when executed implementing the steps of the earth and rockfill dam seepage analysis method of the present embodiment taking hysteresis effects into account.
The present embodiment also provides a method for quantitatively determining the seepage lag time of an earth and rockfill dam, which comprises a memory and a processor, wherein the memory stores a computer program capable of being executed by the processor, and the computer program is executed to implement the steps of the seepage analysis method of the earth and rockfill dam considering the hysteresis effect in the present embodiment.
Claims (10)
1. An earth-rock dam seepage analysis method considering hysteresis effect is characterized in that:
acquiring upstream water level monitoring data of earth and rockfill damMeasuring point arrangement information of measuring points in sequence X and earth-rock dam and time delay t corresponding to water level dataiLater measuring point osmotic pressure water level monitoring data sequence Yi；
Based on earth and rockfill dam upstream water level monitoring data sequence X and measuring point osmotic pressure water level monitoring data sequence Y of each measuring point in earth and rockfill damiDetermining the actual seepage lag time tau of each measuring point;
and drawing a dam body infiltration line under the characteristic water level based on the actual seepage lag time of each measuring point and the measuring point arrangement information, calculating the seepage speed and the slope, and analyzing and evaluating the stability of seepage.
2. The earth and rockfill dam seepage analysis method considering hysteresis effect as claimed in claim 1, wherein the earth and rockfill dam upstream water level monitoring data sequence X and the measuring point seepage pressure water level monitoring data sequence Y of each measuring point in the earth and rockfill dam are based oniDetermining the actual seepage lag time tau of each measuring point, comprising the following steps:
calculating X and YiMutual information of I (X; Y)i) And YiInformation entropy of H (Y)i) By the formula
Calculating X to YiConstructing a directed information transfer index function DITI (t) under different lag times;
when the DITI (t) function has the first maximum, the coupling degree between different information is the highest, the information transmission amount is the maximum, and the corresponding time t isiτ is the real seepage lag time τ of the measuring point.
3. The earth and rockfill dam seepage analysis method considering the hysteresis effect as claimed in claim 1, wherein the dam body infiltration line under the characteristic water level is drawn based on the actual seepage hysteresis time of each measuring point and the measuring point arrangement information, the seepage speed and the slope drop are calculated, and the stability of seepage is analyzed and evaluated, including:
based on the obtained actual lag time of each seepage point of the dam, the actual lag time of each seepage point is subtracted from the actual measured time sequence of each seepage point of the dam, a measured value process line of each seepage point time sequence of the dam is reconstructed, and the influence of a seepage lag effect is eliminated.
According to the reconstructed time sequence measuring process line of each seepage point of the dam body, selecting the corresponding water level of each seepage point of the dam body under the characteristic water level, drawing the real water level distribution of the dam body under the characteristic water level, calculating the seepage speed by adopting the formula real distribution seepage diameter/the real distribution seepage diameter according to the real water level distribution and the actual lag time, calculating the slope drop by adopting the formula real distribution seepage diameter/the real distribution seepage diameter, and analyzing and evaluating the seepage stability.
4. The method for analyzing earth and rockfill dam seepage considering hysteresis effect as claimed in claim 1, wherein: and the seepage pressure water level monitoring of the rear measuring point of the seepage-proofing body of the earth and rockfill dam adopts a pressure measuring pipe or a combination arrangement form of the pressure measuring pipe and the pressure measuring meter.
5. The utility model provides a consider earth and rockfill dam seepage flow analytical equipment of hysteresis effect which characterized in that:
a data acquisition module for acquiring an upstream water level monitoring data sequence X of the earth-rock dam, measuring point arrangement information of each measuring point in the earth-rock dam and a time delay t corresponding to the water level dataiLater measuring point osmotic pressure water level monitoring data sequence Yi；
A lag time determination module for determining a measurement point osmotic pressure water level monitoring data sequence Y based on the upstream water level monitoring data sequence X of the earth-rock dam and the measurement points in the earth-rock damiDetermining the actual seepage lag time tau of each measuring point;
and the subsequent processing module is used for drawing a dam body infiltration line under the characteristic water level based on the actual seepage lag time of each measuring point and the measuring point arrangement information, calculating the seepage speed and the slope drop, and analyzing and evaluating the stability of seepage.
6. The earth and rockfill dam seepage analysis apparatus considering hysteresis effects of claim 5, wherein the hysteresis time determination module comprises:
data calculation module forIn calculating X and YiMutual information of I (X; Y)i) And YiInformation entropy of H (Y)i) By the formula
Calculating X to YiConstructing a directed information transfer index function DITI (t) under different lag times;
a lag time solving module for obtaining the maximum coupling degree between different information when the DITI (t) function obtains the first maximum value, and the information transmission amount reaches the maximum, at which the corresponding time tiτ is the real seepage lag time τ of the measuring point.
7. The earth and rockfill dam seepage analysis apparatus considering hysteresis effects of claim 5, wherein the post-processing module comprises:
and the seepage lag effect eliminating module is used for calculating the actual lag time of each seepage point of the dam based on the lag time determining module, subtracting the actual lag time of each seepage point from the actual measured time sequence of each seepage point of the dam, reconstructing a measured value process line of each seepage point time sequence of the dam and eliminating the influence of the seepage lag effect.
And the result calculation and display module is used for selecting the water level corresponding to each seepage measuring point of the dam body under the characteristic water level according to the reconstructed time sequence measuring process line of each seepage measuring point of the dam body, drawing the real water level distribution (infiltration line) of the dam body under the characteristic water level, calculating the seepage speed by adopting the formula real distribution seepage diameter/the real distribution seepage diameter according to the real water level distribution and the real lag time, calculating the slope drop by adopting the formula real distribution water level difference/the real distribution seepage diameter, and analyzing and evaluating the stability of seepage.
8. The earth and rockfill dam seepage flow analysis apparatus considering hysteresis effect as claimed in claim 5, wherein the seepage pressure water level monitoring at the rear measuring point of the impervious body of the earth and rockfill dam is implemented by using a pressure measuring pipe or a combination of a pressure measuring pipe and a pressure gauge.
9. A storage medium having stored thereon a computer program executable by a processor, the computer program comprising: the computer program when executed implements the steps of the method for earth and rockfill dam seepage analysis considering hysteresis effects of any one of claims 1 to 4.
10. An earth and rockfill dam seepage analysis apparatus taking hysteresis effects into account, having a memory and a processor, wherein the memory has stored thereon a computer program executable by the processor, characterized in that: the computer program when executed implements the steps of the method for earth and rockfill dam seepage analysis considering hysteresis effects of any one of claims 1 to 4.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117629158A (en) * | 2023-11-30 | 2024-03-01 | 长安大学 | Method for determining seepage quantity in river interval |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117629158A (en) * | 2023-11-30 | 2024-03-01 | 长安大学 | Method for determining seepage quantity in river interval |
| CN117629158B (en) * | 2023-11-30 | 2024-06-21 | 长安大学 | Method for determining seepage quantity in river interval |
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