KR101056055B1 - State measurement method of river bank rest facility - Google Patents

Abstract

By accurately measuring the condition of the facilities installed on the slopes of river shores (large signs of damage or signs of collapse) in real time, if there is concern of large-scale damage or collapse of the facilities installed on the river lakes, the countermeasures will be taken in advance. Disclosed is a method for measuring the condition of river shoreline facilities, which can prevent damage caused by large-scale damage or collapse of shoreline facilities.

The disclosed state measurement method of river banks facilities, measuring step of measuring the displacement of the target using a displacement sensor installed in the vertical direction on the surface or ground of the river banks facility; A proximity analysis step of grouping displacement information of the target measured in the measuring step and analyzing proximity based on the displacement information of the grouped targets; A relative displacement difference analysis step of analyzing a relative displacement difference based on the displacement information of the target; And a similarity analysis step of determining a slope behavior by performing a similarity analysis based on the result of analyzing the proximity and the relative displacement difference.

Rivers, shores, slopes, proximity, relative displacement, similarity

Description

{Method for state measuring of revetment facilities}

The present invention accurately measures the condition of facilities installed on slopes of river lakes (large signs of damage or signs of collapse) in real time, and plans to establish countermeasures in advance when there is concern of large-scale damage or collapse of facilities installed on river lakes. The present invention relates to a method for measuring the condition of a riverbank facility, which can prevent damage caused by massive damage or collapse of the riverbank facility.

In Korea, from 2002 to 2004, both large and small rivers in all watersheds suffered a lot of damages due to the collapse of the banks, the loss and flooding due to the invasion of large and small typhoons such as typhoons 'Rusa' and 'Cicada' and frequent rainfall. Wore.

Unlike the existing heavy rain accident at the time of designing a river shore, it is unpredictable because local and intensive (guerrilla) rainfall occurs in a specific area, and the flood duration of the river is 3 days due to the excess rainfall of astronomical probability. As the design concept of '02 is exceeded, it is estimated that the embankment saturates and the sliding occurs, and piping, the embankment, and the leakage of structure parts occur.

The flood damage related to drainage gates in 2002 was 12% (54 out of 453 cases) in the river structure, and the magnitude of flood damage caused by river facilities (structure) is gradually increasing. Able to know.

Therefore, it is urgently needed to present future-oriented advanced safety management techniques that can take into account the diversified contents of water resources (repair, hydrology), soil, and structural aspects for effective embankment safety management.

On the other hand, various real-world measurement data for the risk of slope collapse have been given to civil engineers, but it is not easy to analyze the real-time slope behavior after analysis, processing, and draw conclusions about slope stability.

At present, various methods have been proposed at home and abroad to detect leaking areas of banks and to evaluate the health of the body structure.

In Korea, physical exploration methods such as natural potential exploration, electrical resistivity exploration, and low temperature exploration have been applied in various ways. In this method, since the depth of detection becomes low when the electrode interval is set very small in order to increase the resolution, the electrode interval should be maintained above the proper interval in arcs above a certain scale.

Overseas, there is a study using the nonlinear dynamic model (NDS), which is similar to the mathematical analysis technique, and suggests a method for analyzing the collapse time of structures including earthquakes.

However, all these existing civil structures measurement and management methods are to compare the measurement results with those calculated during the design by calculating the control standard for each structure for effective task performance.

In the civil engineering field, it was confirmed that the management standard value to be compared with the measurement data is not clear. The current management standard value refers to the data of Japan and the US as it is. This value is also an empirical value, not a calculated value in the design of the structure. There is a drawback to using a batch of similar structures.

In particular, since there are too many variables for the repair facility to apply the simple comparative type of control standard method used in other structures, there is an urgent need for a method of calculating the control standard value suitable for the characteristics of the repair facility.

The present invention has been proposed by the above needs,

The problem to be solved by the present invention is to provide a method for measuring the condition of a river shore facility to accurately measure in real time the condition (large signs of damage or signs of collapse) installed in the river lake.

Another problem to be solved by the present invention is to measure in advance the signs of large-scale damage or collapse of the facilities installed in the river lakes, so as to establish countermeasures, thereby preventing damage caused by large-scale damage or collapse of the river lakes facilities in advance. It is to provide a method for measuring the condition of river shoreline facilities.

According to the present invention for solving the above problems, the "state measurement method of river shore protection facilities",

A measurement step of measuring a displacement of the target by using a displacement detection sensor installed in a vertical direction on the ground surface or the ground of a river shore facility;

A proximity analysis step of grouping displacement information of the target measured in the measuring step and analyzing proximity based on the displacement information of the grouped targets;

A relative displacement difference analysis step of analyzing a relative displacement difference based on the displacement information of the target; And

And a similarity analysis step of determining slope behavior by performing similarity analysis based on the result of analyzing the difference between the proximity and the relative displacement.

Here, the grouping of the displacement information of the target is characterized in that the displacement information of the horizontal target installed in the same section is grouped into one group.

According to the present invention, there is an advantage in that it is possible to accurately measure the condition (large signs of damage or signs of collapse, slope behavior) of the facilities installed in the river lakes in real time.

In addition, due to the above advantages, it is possible to predict the signs of large-scale damage or collapse of the facilities installed on the river shore in advance, and to prepare countermeasures to prevent the damage caused by the large-scale damage or collapse of the river shore facility. There are advantages to it.

Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Figure 1a is an example of a plurality of targets installed on the surface slope of the field (site) in the present invention, Figure 1b is an example of a plurality of targets are installed on the underground slope of the field (site), Figure 2 is in accordance with the present invention 3 is a schematic configuration diagram of a state measurement system of a river shore security facility, and FIG. 3 is a flowchart showing a state measurement method of a river shore security facility according to the present invention.

The difference between FIG. 1A and FIG. 1B is that the displacement detection sensor installed in the target is different. For example, as shown in FIG. 1A, the displacement detection sensor installed on the slope of the ground may use a length measuring sensor or a position measuring sensor using GPS that connects each target with a wire and measures a displacement length of the corresponding wire. In addition, it is preferable to use an angle sensor as the displacement sensor installed on the slope of the ground as shown in FIG. 1B. Since the length sensor, the angle sensor, or the position measuring sensor adopts a sensor already known in the field for displacement measurement, its detailed description is omitted.

The measurement of displacement information using targets installed on the slope of the ground and the measurement of displacement information using targets installed on the slope of the ground differ only in the installed sensor, and the slope behavior is measured using the measured displacement information. Since the method of analysis is the same, below, only the thing which installed the target in the surface of the surface for convenience of description is demonstrated.

As shown in FIG. 1A, a plurality of targets 101 to 104 applied to the present invention are installed using poles 111 to 114 on the surface slope of a river shore facility installed in a field (field). Here, the target is preferably installed horizontally with respect to the same cross section.

In FIG. 1A, only four targets are shown on the slope for convenience, but in order to accurately predict the condition of the riverbank facility, it is preferable to install as many targets as possible, but the larger the number of targets, the higher the accuracy can be achieved. Since the cost and information processing are excessively consumed, it is desirable to set an optimized number of targets by experiment or the like.

는 각 단면의 센서위치로서, n은 단면번호이고, m은 센서위치이다.here

Is a sensor position of each cross section, n is a cross section number, and m is a sensor position.

Grouping of the surface installation type of a body can set up a representative cross section to estimate the fracture line of the embankment, that is, whether it will collapse to a deep or shallow fracture surface. The potential breakdown lines that can occur in the cross section to be analyzed are proportional to the number of sensors and are analyzed in each step, including the number of cases.

2 is a configuration diagram showing a state measurement system of a river shore security facility using an angle sensor or GPS, the field system 100, the state measurement means 200 of the river shore security facility 200, the communication network 300, the monitoring system 400 It consists of.

On-site system 100 is installed in the vertical direction on the ground surface of the river shore facility 120 of the site by poles 111 ~ 114 and a plurality of targets (101 ~ 104) including a displacement measuring sensor and installed in the site The target displacement information obtained from the displacement measuring sensors included in the plurality of targets 101 to 104 is converted into a data format corresponding to the connected communication network, and the state measurement means 200 of the river shore facility located remotely through the communication network. Displacement information transmitting means 130 for transmitting.

Displacement information transmission means 130 may include a signal processor for wired transmission to the terminal connected to the signal processing the displacement information obtained from each displacement measuring sensor, and to transmit the displacement information processed by the signal processor to the wireless communication network It may include a wireless transmitter for converting into a wireless data format for wireless transmission. In case of using a wired terminal, it is inconvenient for the administrator to directly access the signal processor by accessing the signal processor, and in the case of the wireless transmission method, the administrator can eliminate the inconvenience of directly exploring the location of the signal processor. have. However, since wired and wireless methods have various advantages and disadvantages, it is possible to select a suitable method or to use both methods in consideration of the installation location of the river shore facility or other surrounding environment.

The state measuring means 200 of the river shore protection facility may be installed at the site like the on-site system 100 installed at the site, installed remotely and performing data communication through a separate communication network (for example, CDMA). You can also use the method. Considering the convenience of management or other surrounding environment, it is desirable to install remotely.

The state measuring means 200 of the river shore security facilities 200 groups the displacement information of the plurality of targets transmitted from the displacement information transmitting means 130, and analyzes the displacement information of the grouped targets to measure the state of the river shore safety facilities. To perform a function, specifically, displacement information receiving means for receiving displacement information of a plurality of targets transmitted from the displacement information transmitting means; A database server 220 for storing and managing displacement information received by the displacement information receiving unit 210 in a database 221; Displacement information of a plurality of targets stored in the database 221 is grouped, the displacement information of the grouped targets is analyzed by a SAM algorithm, and the slope behavior is determined, and the result of the determination is provided as state measurement information of the river shore facility. Information analyzing means 230; Measurement information transmitting means 240 for transmitting the state information of the river shore facility measured by the displacement information analysis means 230 to the terminal of the general user and the information referrer through the communication network 300.

Here, the displacement information analyzing means 230 means a conventional information processing computer, and a detailed description thereof will be omitted.

Surveillance system 400 is a general user (non-professional) system 410 for receiving and using the displacement information analysis information through the communication network 300, and receives the displacement information analysis information through the communication network 300 to the river Information referrer system 420, which is an analytical expert that notifies large-scale damage or collapse of a raft facility or establishes measures to prevent damage from large-scale damage or collapse.

The state measurement system of the river revetment facility according to the present invention configured as described above is to measure the displacement amount of the river revetment facility in the displacement measuring sensor included in the target (101 ~ 104) installed on the surface slope of the river revetment facility (S101), In the signal processor of the displacement information transmission means 130, the measured displacement information is signal-processed and made into a data file, and when the terminal is connected, the wired transmission is performed to the terminal. If the remote data is transmitted remotely, the wireless transmitter converts the data into a wireless data format corresponding to the communication network and wirelessly transmits the displacement information through the communication network. The measured displacement information includes sensor position information, section number information, and sensor position information of each cross section. In addition, the measured displacement information means displacement information of a target horizontally installed with respect to each same cross section. For example, suppose that four targets are installed at regular intervals on the surface slope of a river shoreline facility, and eight targets are installed horizontally on the same section horizontally. Displacement information is generated, and since eight displacement information are grouped in one group horizontally with respect to the same cross section, four data groups can be obtained in the above case (S103).

The grouping information thus obtained is used to set up a representative cross section to estimate the fracture line of the lake, i.e. whether it will collapse into a deep or shallow fracture surface. The potential breakdown lines that can occur in the cross section to be analyzed are proportional to the number of sensors, and the analysis is performed in each step, including the number of cases.

Here, if the number of sensors installed based on each cross-section is less than five, a method of grouping and analyzing the entire cross-section may be applied.

In the above-described field system 100 may be implemented in parallel with a wired transmission method and a wireless transmission method as necessary.

The state measuring means 200 of the river shore security facility 200 receives the displacement information transmitted from the displacement information transmitting means 130 through the displacement information receiving means 210, and the displacement information receiving means 210 transmits the displacement information. Receive displacement information with a technical configuration corresponding to the means 130. For example, when the transmission means is a wired method (RS-485), the receiving means also has a wired configuration, and when the transmission means is a wireless system, the receiving means also has a wireless configuration.

When the displacement information receiving means 210 receives the displacement information of a plurality of targets installed in the vertical direction on the indicator of the river bank facility, it is stored in the database 221 in the database server 220, displacement information analysis means 230 ) Applies the displacement information of the plurality of targets stored in the database 221 to a preset SAM algorithm to extract the state measurement value of the river bank facility.

To this end, first, a closeness is analyzed based on the displacement information of the target (S105). Here, the proximity means a difference in time series data between viewpoints, that is, a degree of correlation of time sequence data of each viewpoint. .

In order to measure the degree of correlation of the time series data of each observation point installed on the slope, each observation point compares the displacement data and analyzes the interlocking behavior of the observation points, that is, the behavior pattern, and confirms the size and speed of the slope. .

It is assumed that there are N observation points or poles on the surface of the measurement target slope, and each observation point is called P1, P2, ..., Pn. The time distribution for measuring data is called t1, t2, ..., tn, and the change in position of each observation point over time, that is, the displacement of the upper slope is called D. Therefore, the displacement of Pi point over time can be expressed as Di (t1), Di (t2), ..., Di (tn), or simply Di (tk), k = 1, 2, ..., tn Can be.

In the same way, for the Pj point, the displacement along the temporal sequence is represented by Dj (t1), Dj (t2), ..., Dj (tk).

When time is tk, the displacement difference between two viewpoints Pi and Pj is defined as Equation 1 below.

When the time domain between two viewpoints Pi and Pj is [t1, t2], the average displacement difference of the time series data D _{i, j} (tk) with respect to displacement can be expressed as Equation 2 below.

그러나 변위차 Di(tk)는 영역이 [0 ~ +∞]사이인 거리차원을 가지고 있다.

However, the displacement difference Di (tk) has a distance dimension whose region is between [0 and + ∞].

delete

As shown in Fig. 4, in the case where the fracture of the slope is a shallow fracture where the fracture occurs at the bottom of the slope, the displacement will occur in the + ∞ direction, and when the fracture surface rotates, such as deep fracture, the displacement will move in the zero direction. Here, the engineering meaning of ∞ corresponds to slope failure, + means an increase in displacement between two observation points, and-means a decrease in displacement. Since the displacement difference generated from the slope should be compared and analyzed on the equation and graph to be developed later, it is better to calculate the displacement difference by changing it to a simple dimensionless constant. Therefore, since the displacement difference is moving between [0 ~ + ∞], the function can be converted into a dimensionless constant using the characteristic of the tan function moving from [0 ° to + 90 °] from [0 ° to + ∞]. . The transformed dimensionless constant will move in the range [0 to +1]. This conversion method is shown in Equation 3 below.

이다.or

to be.

This expression can be rearranged as shown in Equation 4 below.

의 영역은 0≤

≤90이므로,

는 [0 ~ 1]구간 내의 상수 값으로 계산된다. 그러므로

는 두 사면 관측점의 계측변위 데이터의 차이를 거리 차원이 아닌 무차원 상수로 나타낼 수 있는 값이다.here

The area of 0≤

≤90,

Is calculated as a constant value within the range [0 to 1]. therefore

Is a value that can represent the difference between the measured displacement data of two slope observation points as a dimensionless constant rather than a distance dimension.

However, knowing how the slopes interlock together, that is, the two observations on the slope move together, the size of the fracture surface can be known. In other words, if the same time-phase displacement difference between the two viewpoints on the slope is large, the two points are moving on different fracture planes separately, and if there is little or no displacement difference, the two viewpoints are moving on the same fracture plane. Can be inferred.

를 최대값 1에서 빼주면된다.Therefore, it is necessary to introduce a new index of the difference between the displacement data of two viewpoints, that is, the proximity of the viewpoints. Proximity indices are entirely different from the displacement difference between two observation points. Proximity indices can be subtracted from the maximum difference from a constant displacement difference. The maximum value of the displacement represented by the sine function is 1 for + displacement and 0 for-displacement. Therefore, the proximity index is the displacement difference defined by the dimensionless constant,

Subtract from the maximum value of 1.

The proximity index between two observation points on the slope at time differences i and j is

)=발생가능한 최대변위 차(0 ~ ∞) - 실제 변위차(

) = 1(

의 양의 최대변위 값) -

(실제변위 값)Proximity Index (

) = Maximum displacement difference (0 to ∞)-actual displacement difference (

) = 1 (

Value of positive displacement)-

(Actual displacement value)

)(음의 실제변위 값)Or = 0-(-

) (Negative actual displacement value)

Therefore, for deep failures where the relative displacement between two viewpoints due to the rotation of the failure slope decreases, the proximity index will be negative, and for shallow failures where relative displacement increases due to translation of the failure slope, positive exponential values will occur. Have.

근접성 지수의 절대값이 작을수록 두 관측점의 변위차가 작으므로 거동 양상은 비슷하다. 즉, 지수가 1 혹은 0에 근접할수록 사면의 거동 양상은 비슷하며, 이는 같은 파괴면 상에 있다. 변위량이 지속적으로 증가하고 있는 일반적인 사면 거동에 대한 근접성 지수는 아래의 수식 5에 보인 바와 같으며, 만약 현저한 깊은 파괴로 인한 상대변위 감소 구간에서는 아래의 수식 5에 대해 부호만 다르게 정의된다.In conclusion, the greater the absolute value of the proximity index, the smaller the difference in time series data between two observation points, which means that the difference in displacement between two points is small. In other words,

The smaller the absolute value of the proximity index, the smaller the difference in displacement between the two observations. In other words, as the exponent approaches 1 or 0, the behavior of the slope is similar, which is on the same fracture surface. Proximity indices for general slope behavior with increasing displacements are shown in Equation 5 below, and only the sign is defined differently for Equation 5 below in the relative displacement reduction section due to significant deep fracture.

Next, the relative displacement difference is analyzed based on the displacement information of the target (S107).

Since the behavior pattern due to the failure of the slope occurs over a long time, it is advantageous to find a shape in which the displacement difference between the two observation points shows different behavior with time. However, in the case of the proximity index, the total time series data between each observation point is simply represented by one index, so it is difficult to analyze the process of behavioral difference between each observation point. In other words, it is advantageous to use a graph that knows the process rather than the proximity index that represents the overall behavioral difference as one value. Therefore, I would like to introduce the concept of similarity to this requirement.

In other words, since the proximity index uses the concept of an average value, both the stable data and the unstable data may have the same average value.However, when the data are plotted on a graph, it is easy to see that the data of the graph having similar shapes show the same slope behavior. have.

)와 최소변위차(

)와 해당 시점의 변위차를 사용하여 구할 수 있다. 두 관측점의 최대변위 차와 최소변위 차의 차이가 변위차 차이의 최대값이 될 것이며, 이는 두 관측 데이터를 이용한 변위차 그래프의 최대간격(

-

)이 될 것이다. 그리고 최대 변위차값을 해당 시점의 변위차값으로 빼면 이는 변위차 그래프의 해당 시점의 간격이 되며(

-

), 해당 간격을 최대 간격으로 나누면 이는 상대 변위차가 될 것이다. 먼저, 최대 및 최소 상대변위 차는 아래의 수식6 및 수식7로 정의되며, 이는 도 5와 같이 나타낼 수 있다.To use the concept of similarity, we first define a relative displacement. Relative displacement difference is the maximum displacement difference between two observations (

) And minimum displacement (

) And the displacement difference at that time. The difference between the maximum displacement difference and the minimum displacement difference between two observation points will be the maximum value of the displacement difference, which is the maximum interval of the displacement difference graph using the two observation data (

-

Will be Subtracting the maximum displacement difference value by the displacement difference value at that time becomes the interval of the corresponding time point in the displacement difference graph (

-

If you divide the interval by the maximum interval, it will be the relative displacement difference. First, the maximum and minimum relative displacement difference is defined by Equations 6 and 7 below, which may be represented as shown in FIG. 5.

The relative displacement difference of the time column data corresponding to a certain time tk in the observation time i and j of two observation points can be defined by Equation 8 below.

When the average value of two time column data is obtained, it can be defined by Equation 9 below.

의 범위는 [0 ~ 1]인 무차원수이므로, 당연히 이의 평균값인

역시 범위가 [0 ~ 1]사이인 무차원수이다.

값이 크거나 혹은 1에 근접할 때 i, j시간 구간의 데이터 시리즈는 유사한 모양을 갖게 될 것이다. 다시 말하면,

값이 작거나 0에 근접하면 i, j시간 구간의 데이터 시리즈는 서로 다른 모양을 갖게 될 것이다.

Since the range of is a dimensionless number that is [0 to 1],

It is also a dimensionless number ranging from [0 to 1].

When the value is large or close to 1, the data series of the i and j time intervals will have a similar shape. In other words,

If the value is small or close to 0, the data series in the i and j time intervals will have different shapes.

Next, similarity analysis is performed using the results of the proximity analysis and the state displacement difference analysis, and the slope behavior is determined based on the result of the similarity analysis (S109 to S111).

)라는 개념을 정의하였고, 데이터 시리즈의 그래프 형상의 비슷한 정도를 나타내기 위하여 상대 변위차(

)라는 개념을 정의하였다. 상기 두 가지 개념을 각각 사용하는 것이 아니라 함께 사용한다면, 두 관측지점의 시간 열 데이터의 변위차의 정도 및 그래프로 나타난 모양이 비슷한 정도(각 지점의 시간에 따른 데이터의 증감 정도)를 동시에 나타낼 수 있을 것이다. 이 두 개념은 근접성과 상대변위 차를 각각 좌표의 한 축으로 하여 도 6과 같이 그림으로 표현할 수 있으며, 같은 무리에 속하면 같은 거동을 나타내고 있다고 할 수 있을 것이다.In order to quantify the difference in the time series data of two observations, that is, the difference in displacement between two points, the proximity index (

), And the relative displacement difference (

) Is defined. If the two concepts are not used separately, but used together, the degree of displacement of the time series data of two observation points and the shape of the graph are similar (the degree of increase and decrease of data over time at each point) can be simultaneously represented. There will be. These two concepts can be expressed as a figure as shown in Fig. 6 by using the proximity and relative displacement difference as one axis of the coordinates, respectively, and it can be said that they represent the same behavior when belonging to the same group.

)은 아래의 수식 10과 같이 정의한다. 구간이 [0 ~ 1]사이인 두 무차원수로 구성되었으므로, 유사성은 당연히 [0 ~ 1]사이의 범위 구간에 존재한다.The similarity is defined using the product of the proximity index and the relative displacement difference produced by the time columns i and j of the two observations. This similarity (

) Is defined as in Equation 10 below. Since the interval consists of two dimensionless numbers between [0 and 1], similarity naturally exists in the range interval between [0 and 1].

An analytical model, as noted, was applied to the data of any area measured (Slope D, Chungcheongbuk-do). As shown in FIG. 7, the target slope is a cut slope of the national road, and cross sections 1 to 3 are cross-sections from the bandung slope to the concrete road on the village entrance road and the waste-rock embankment layer on the upper slope of the Namhan River at the bottom of the slope. The point at which tensile cracks were found at. Sections 4 to 5 are covered with all-rock and bandage soil (HW-CW), and exposed rock outcrops are discolored due to the development of weathering, and the hand piece is easily removed by hand. In addition, in order to suppress the erosion and activity of the surface soil, but partially treated with gabion and wood blockage, the gabion hole is in a loose state and the wood blockage is also a point damaged by corrosion and rockfall.

In the field measurement data, sections 1 and 3, that is, observation points 1 to 6, were used. Referring to the process of calculating the similarity of the slope behavior using the drawings as follows. FIG. 8 lists the original measurement data, and the displacement difference and the average displacement difference using the same are shown in FIG. 9. In FIG. 10, the relative displacement difference and the average relative displacement difference were calculated. The similarity calculated using the proximity index and the relative displacement difference is shown in FIG. 11, which is illustrated in FIG. 12.

As shown in FIG. 11, the proximity index showed a value close to 1 in all measurement data. This means that there is little displacement difference of slope behavior at each observation point, and that the displacement magnitude of slope behavior is almost constant in both 1st and 3rd sections.

In the case of the relative displacement difference, it moves from 0.376 to 0.489, indicating that the measurement data is null. That is, as can be seen from the proximity, the displacement of the slope behavior does not have a big difference, but as shown in FIGS. 13 to 15, it can be seen that the graph shows an unstable graph pattern, not a stable situation.

In conclusion, by using the concept of proximity, relative displacement, and similarity, we can analyze various real-time measurement data at risk of slope collapse and analyze real-time slope behavior to draw conclusions about slope stability. Will be.

The state measurement information and the judgment information of the river shore protection facilities determined in this way are used by a manager (a professional manager who manages river shore protection facilities) and a general user (by using the communication network such as the Internet or a text transmission method such as SMS). As a user to be used).

The manager shall check the status measurement and judgment information of the stream revetment facilities sent, and if the river revetment is deemed to have a significant damage or fear of collapse, it will issue an alarm and promptly follow up by Minimize the damage that can be caused by large-scale damage or collapse of riverbank facilities.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

1A and 1B are schematic structural diagrams of a field system to which the present invention is applied.

Figure 2 is a block diagram of a state measurement system of the river shore security facilities according to the present invention.

Figure 3 is a flow chart showing a method for measuring the state of the river banks facilities in accordance with the present invention.

Figure 4 is an exemplary view for explaining the fracture surface of the slope in the present invention.

5 is a view for explaining the displacement difference of the slope behavior in the present invention.

Figure 6 is an exemplary view showing a similarity analysis method using the difference between proximity and relative displacement in the present invention.

7 is a layout view of a displacement detection sensor of any slope for applying the state measurement method according to the present invention.

8 is an example of original measurement data in the present invention.

9 is an example of the displacement difference and the average displacement difference in the present invention.

10 is an example of the relative displacement difference and the average state displacement difference.

11 is an example of similarity calculation using the proximity index and the relative displacement difference.

12 is a diagram illustrating the similarity using the proximity index and the relative displacement difference.

13 is an exemplary diagram of circular displacement measurement data over time.

14 is an exemplary view of a displacement difference between observation points of slope behavior.

15 is an exemplary diagram showing a state displacement difference between observation points of slope behavior.

<Explanation of symbols for the main parts of the drawings>

100... Field system

101 to 104. target

111 to 114... pole

130... Displacement information transmission means

200... Means of state measurement of river bank rest facility

220... Database server

230... Displacement Information Analysis Means

300... communications network

Claims (5)

In the method for measuring the state of the river shore security facilities through the on-site system and the state measuring means of the river shore security facilities, A measurement step of measuring a displacement of a target by using a displacement sensor installed in the vertical direction on the ground surface or the ground of the river shore facility in the field system; Proximity to group the displacement information of the target measured in the measuring step in the state measurement means of the river shore security facility, and to analyze the proximity which is the degree of correlation of the time series data of each observation point based on the displacement information of the grouped targets. An analysis step; A relative displacement difference analysis step of analyzing a relative displacement difference, which is a displacement difference between a maximum observation point and a minimum displacement difference and a corresponding viewpoint, based on the displacement information of the target in the state measuring means of the river shore security facility; And Similarity analysis to determine whether belonging to the same group after representing the proximity and relative displacement difference as a picture of the coordinates based on the result of analyzing the proximity and the relative displacement difference in the state measuring means of the river shore facility facilities Method of measuring the condition of the river banks facilities, characterized in that it comprises a similarity analysis step of determining the slope behavior by performing. delete delete delete delete

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