KR101718700B1 - Selecting method of criterion factors for keeping or removing erosion control district - Google Patents

Abstract

We will disclose how to select the reference factor for maintenance and release of the slope. The present invention is characterized in that a slope evaluation server obtains and stores a published slope facility inspection report by analyzing a slope facility inspection report stored in a slope evaluation server to obtain a plurality of basic slope check parameters, Performing a quantification analysis on each of the basic slope check factors obtained in the facility inspection report to select a plurality of final factors; setting the importance of each of the plurality of final factors; And generating a management reference table for determining the maintenance release of the oblique road.

Description

{SELECTING METHOD OF CRITERION FACTORS FOR KEEPING OR REMOVING EROSION CONTROL DISTRICT}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a sloping ground, and more particularly, to a method of selecting a reference slip for maintaining and releasing a sloped ground.

The purpose of the four-way project is to prevent the degradation of mountain slopes and mooring by carrying out civil engineering works on the damaged and damaged areas and to promote vegetation, and to promote the public-interest functions of forests such as the control of production and movement of soil and gravel, It has the purpose of raising the quality of life. Defined in the Four-Way Business Act, the term "flat zone" refers to an area in which the four-way project has been implemented or is to be implemented.

In order to conduct business everywhere, it is required to designate a flat land, which has been designated for ten years under the Four-Way Business Act, and the landlord can not exercise property rights for at least ten years. In other words, if it is necessary to release the land, it can be lifted only after 10 years (the Enforcement Decree of the Fourth Street Business Act, enforced on March 23, 2013). In recent years, however, there has been controversy over the infringement of the rights of the citizens, such as the right to property rights and the pursuit of happiness. In particular, private forests account for 68.1% of the national forests with 4,338,000 hectares, There are many.

When the type of the four-way project is divided into the mountain, coast, and the four-way project as in the four-way business law, the case of the four-way project (such as the four-way dam) have. In addition, even in the case of aquatic ecosystem change, the ecosystem is destroyed immediately after construction, but there is a case that the ecosystem gradually stabilizes after about 18 months after construction. However, in the case of forest soil, the forest is formed as time elapses after the all-round project, and it tends to become stable due to the development of the soil by the wastepaper. However, if left untouched, There are also cases.

Therefore, it is necessary to differentiate the length of time that can be released from the sidewalks by differentiating the sidewalk designation period according to the type of the four - way project. In particular, when the structure is constructed, it is necessary to consider a method of eliminating the designation period of the sidewalks.

However, in order to discriminate the maintenance or release of the oblique ground, it is necessary to establish a criterion for discrimination.

Korean Patent Publication No. 10-2015-0116676 (published Oct. 16, 2015)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of selecting a reference factor for determining whether to maintain or release designation of a region designated as a slope.

According to another aspect of the present invention, there is provided a method of selecting a reference factor for maintaining and releasing a slope, comprising: acquiring and storing a slope facility inspection report issued by a slope evaluation server; Analyzing the municipal facilities inspection report stored in the municipality evaluation server to obtain a plurality of basic sidewalk check factors; Performing a quantification analysis on each of the basic slope check factors obtained in the slope facility inspection report by the slope evaluation server to select a plurality of final factors; Setting the importance of each of the plurality of final factors; And generating a management reference table for determining the maintenance release of the warp using each of the final factors; .

Wherein the selecting of the plurality of final factors is performed by performing a quantification II analysis on each of the basic oblique angle check factors and selecting the plurality of final factors.

The step of selecting the plurality of final factors includes a step of checking the condition of the four-way facilities, the state of the other facilities, the mooring state, the occurrence of the collapsed land and the embankment land, the other erosion, The relationship between the development of the surrounding area and the development of the surrounding area, the relationship with the surrounding area, the presence of the access road, and the damage to the safety facilities, etc. , The bottom mooring state, the occurrence of erosion, the growth of the planting tree, the covering state of the fresh stream, and the condition of the other greening facilities are selected as the final factors.

Wherein setting the importance of each of the final factors comprises: calculating a score and a range of a good or a bad category of each of the plurality of final factors; And determining the importance degree of each of the plurality of final factors by combining the ranking of the categories and the rank of the rank relation coefficient; And a control unit.

Wherein the generating the management criteria table comprises: calculating a discrimination hit rate for the plurality of final factors; And generating the management reference table in which an evaluation for each of the plurality of final factors can be written if the evaluation hit rate is greater than or equal to a predetermined reference determination hit rate. And a control unit.

Therefore, the reference factor selecting method for maintaining and releasing the oblique slope of the present invention can present a slope management reference table capable of judging whether the oblique slope is maintained or released. Factors that can cause additional erosion of the slope should be maintained even if it is a little bad. However, there is a possibility that the slope can be released because the extreme erosion may not occur even if the growth and other conditions of planting are somewhat poor. Therefore, if the suggested slope management standard table is used, it can be a basis for shortening the designated training period of the slope which is a current problem.

FIG. 1 illustrates a method of selecting a reference factor for maintaining and releasing a rectangular shape according to an embodiment of the present invention.
FIG. 2 shows an example of a situation in which the maintenance or release of a slope that has passed six years after the execution of the four-way project is possible.
FIG. 3 is a view comparing the ratio of maintaining or releasing a rectangular area by dividing the facility inspection into two sections.
4 is a graph showing the score and range of each factor of each factor affecting the management judgment of the sloping ground.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. However, the present invention can be implemented in various different forms, and is not limited to the embodiments described. In order to clearly describe the present invention, parts that are not related to the description are omitted, and the same reference numerals in the drawings denote the same members.

Throughout the specification, when an element is referred to as "including" an element, it does not exclude other elements unless specifically stated to the contrary. The terms "part", "unit", "module", "block", and the like described in the specification mean units for processing at least one function or operation, And a combination of software.

FIG. 1 shows a method of selecting a reference factor for maintaining and releasing a rectangular area according to an embodiment of the present invention. FIG. 2 shows an example of a situation in which a rectangular area has been maintained or released for 6 years after the execution of the square area.

The reference factor selection method for maintaining and releasing the oblique slope shown in FIG. 1 is performed in a slope evaluation server (not shown).

In the method of selecting the reference factor for maintenance and release of the oblique pavement, first, the pavement inspection report is collected and stored (S10).

At present, the inspection of the slope in Korea is carried out in accordance with the revised 2008 Amendment on the "Management, Inspection, Safety Diagnosis, and Safety Measures for the Facilities in Each Facility" (related to Article 12 of the Enforcement Decree of the Fourth Street Business Act). In accordance with the Four-Way Business Law and the Regulations, each association has signed a consigned service contract with each local forestry agency and local government every year since 2009 to conduct inspection work on each facility. do.

Inspection of all facilities is a comprehensive survey of the status of major civil engineering works, greening facilities, erosion and other unspecified matters for the four-year facilities which have been completed five years after the completion of the four-sided designation in accordance with Article 4 of the Fourteenth Business Act. Especially, in the case of the sloped area, it was surveyed whether the four-way structure damaged by the mountainous area and the landslide restoration project, the bottom mooring condition (the foot curtain), and other erosion. In addition, the relationship between the planting site and the other facilities due to the development and destruction of the surrounding area, the type of planted tree, planting condition and growth condition, And so on.

In order to select a standard factor for maintaining and releasing the slope, the slope evaluation server receives and saves the previously issued slope inspection report (S10), and issues it within the designated period (for example, three years) (S20). ≪ tb > < TABLE > For example, in the present invention, an analysis was conducted on 1,391 slopes using a three-year (2010 to 2012) facility inspection report.

Previously, the report of the facility inspection report included 1. State of the facility, 2. Status of other facilities, 3. State of mooring, 4. Status of collapsed and collapsed grounds, 5. Other erosion, 6. Stability of planting material, Growth state of existing tree, 9. condition of surrounding area, 10. occurrence of initial eruption of sulfur, 11. development of the surrounding area, relationship with the facility, 12. road access, 13. safety The damage of the facilities is used as a check factor for the slope.

The slope evaluation server analyzes the slope inspection report and judges the slope inspection report to be a slope where the inspection result is defective or the expression that maintenance and maintenance of the slope is necessary is maintained, There is no fear of soil leaking and erosion, and the expressions of stabilization of the slope area such as the coating screening and the area in which the slope is designated as being released can be identified as the slope area where the slope can be released.

In the present invention, it is divided into a range of 6 to 10 years and a range of 10 to 10 years, and it is analyzed whether or not the maintenance of the flat zone can be maintained or released do.

Regardless of the duration of the survey, 80% (1,111) of the surveyed sites and 20% (280) of the surveyed sites were required to be maintained. It can be judged that there are a lot of places that can be lifted out of the places that are currently maintained at the sloping ground, where 80% of the whole area can be dismantled. This is similar to the previous research results that the present condition of the slope is good and there are many good places. It can be judged as a result of the preliminary investigation, design and construction by the experts.

In addition, since the site inspection is conducted for the places where five years have elapsed since the execution of the four-way project, it is possible to check whether the four-way facilities are maintained or canceled And the results are shown in Table 1 and FIG.

As shown in FIG. 2, 310 locations and 360 locations were found to be most likely to be dismissed from 10 to 11 years after the implementation of the four-way project, And 82, respectively. The number of locations that can be maintained or released in the open area over 10 to 11 years is due to the large number of open areas in the survey area. However, when compared with the whole ratio, it is estimated that there are many places that can be dismissed from the riverside because it is about four times more clearable than the place where the riverside should be maintained.

Table 2 summarizes the results of the study. The results of the study are as follows. Table 2 shows the range of 6 ~ 10 years and 10 years over 10 years, And FIG. 3 is a view comparing the ratio of maintaining or releasing the roof by dividing the facility inspection into two sections.

As shown in Table 2, 168 cases (19%) and 699 cases (81%) were reported to be overturned over 10 years. However, 112 cases (21%) and 412 cases (79%) could be maintained in the slopes where 6-10 years have passed. The percentage of maintenance or cancellation of the slope according to the duration of each project was similar between 6 ~ 10 years and over 10 years. However, even if 10 years have not elapsed, the rate of releasing the blind spot is 79% when the condition of the blind spot is normal. Therefore, institutional and legal standards to reduce the evaluation standard of the blind spot .

Though 10 years have passed since the cancellation of the obliteration zone, 19% (168 sites) of the whole area were required to maintain the obligation continuously. In order to investigate the cause of the maintenance of the rectangular shape, the present invention is classified into the following items as shown in Table 3 (defects (breakage, scour, erosion) of main facilities, mooring erosion and instability, Respectively. As for other matters, there are no 4 items or 'no concern about erosion and soil leakage' in the inspection section of the facility inspection report, and it was judged that these areas have not been stable since the implementation of the four-way project .

Ten years have passed since the beginning of the four-way project, but 105 cases (63%) were the most important reason to keep the roads continuously. In order to be careful in releasing the oblique ground, the criterion of releasability is defined as 'there is no concern of erosion and soil erosion', and it is judged whether the object without such expression can be released only by normal or defect I can not. As a result, it was found that 28 cases (17%) of mooring erosion and instability, 27 cases (16%) of defects in major facilities, 4 cases %).

It is considered that the crucial factor for maintaining the steep slope is the stability of the slope, such as mooring erosion and instability and defects of main facilities.

On the other hand, the slope evaluation server performs a quantification analysis on the result of the generalized analysis of the facility inspection report (S30). Quantification refers to giving quantities appropriate to each category of qualitative external criteria or qualitative explanatory variable. In other words, qualitative categorical variables are converted into quantitative continuous categorical variables by quantification.

Particularly, in the present invention, quantification II analysis is performed, and quantification II analysis is performed by Huh, M.H. (1998) Quantification Methods I, II, II and IV. Free Academy. Seoul, Korea. pp. The analytical method proposed in Section 111 is to assign quantification values to each category of qualitative variables, ie, external criteria and qualitative variables, and the external criteria and the explanatory variables are expressed using variable numbers, And maximizing the correlation coefficient between the linear combination of the variables and the explanatory variables, thereby quantifying the quantitative values in all the qualitative categories.

In the present invention, for example, in the evaluation server, the data used in the quantitative analysis was 1,387 data, excluding 4 unexcited data among 1,391 total analysis sites, and the data were classified into two categories as 'normal' or 'defect' , And it was judged that it was normal that "no" was entered in the oblique inspection report.

In addition, the diagonal evaluation server used the quantification analysis to examine the status of erosion control structures, the status of downstream, and so on, taking into account factor independence and correlation for each of the 13 factors used in the four- 6 factors such as Occurrence of soil erosion, Growth status of planted trees, Coverage of grass and Stability of other greening facilities (S40).

The diagonal evaluation server obtains the results of the quantification analysis of each of the six final factors selected, the range of the respective factors, and the rank of the partial correlation coefficient, and uses the acquired score range (range) and the partial correlation coefficient The priority of each factor is set (S50).

For this purpose, the diagonal evaluation server calculates the score and range of each factor of each factor affecting management judgment of the diagonal area. The scores and ranges for each factor are shown in Table 4 and Fig. 4 is a graph showing the score and range of each factor of each factor affecting the management judgment of the sloping ground.

The score of 1.5646 for the defective four-way work is the worst, and 0.0211 for the other deficient facilities.

This is due to the fact that if the state of the four-way work is defective, maintenance and management of the sloping ground is wrong, and the sloping ground is released, the risk of causing landslide disaster is high. . However, the status of other greening facilities refers to the greening condition and the greening condition of the vegetation growing inside and outside the rectangular area, and it can be judged that the importance is relatively low because it includes the vegetation around the rectangular area.

Based on Table 4, the score range of each factor and the ranking of the partial correlation coefficient are obtained as shown in Table 5 to determine the importance.

The rank correlation coefficient of factors that are closely related to the evaluation of whether the condition of the slope is normal or defective is in the order of the four-way workpiece state, erosion occurrence, the cover state of the stream, the bottom mooring state, And ranged in the order of the four-way workpiece state, the flowering state of the fresh stream, the erosion occurrence, the bottom mooring state, the planting growth state, and the other greening state. This is because the order of importance of the explanatory variables by the partial correlation and the order of the importance of the explanatory variables by the range are not necessarily the same.

In addition, as a measure for determining the importance of factors, it is common to use quantitative correlation in addition to the quantification value range in quantification II. As a result, it was found that the condition of the four - way work, the covering condition of the stream, and the occurrence of erosion were influenced relatively by the factors that can judge the present state of the flat.

On the other hand, the slope evaluation server performs an evaluation on the final factor selected (S60).

As a result of the quantification analysis, defects in the oblique region were 1.6211 and standard deviation 1.0173, respectively. In the normal group, the average was -0.0746 and the standard deviation was 0.1818, and the correlation ratio was 0.61. In addition, the discrimination score of the defect group and the normal group is 0.0644. In the evaluation of the sloping management judgment, if the sum of the score of each factor is equal to or greater than the discrimination score, the discrimination score is discriminated.

As a result of reclassification of defective group and normal group into actual values and estimated values using the discrimination hit point as an analysis result of quantification II, as shown in Table 7, in the defective group, 6 defects were misclassified and 10% And 39 cases were misclassified and 3% were misclassified. Also, the overall hit ratio was 96.8% and the correlation ratio was 0.61. In the evaluation of the analysis by the general quantification II, it is a good hit rate when the discrimination accuracy rate is 75% and the correlation ratio is 0.5 or more. The quantification II analysis result of this study is considered to have a high hit ratio.

The sloppy road evaluation server then determines whether the hit rate is equal to or greater than a preset reference hit rate (S70). If it is determined that the reference hit rate is normal, a management reference table for determining whether or not to maintain the oblique direction is generated using the selected factor (S80).

The management standard table is then used as a criterion for maintenance evaluation for the sidewalks so that it can be objectively assessed for the sidewalks that are over 5 years old so that the maintenance or release of the sidewalks can be judged.

Table 8 shows an example of the slope management standard table.

In order to simplify the calculation and to improve the efficiency of the field survey, the range of the score for each category was added and presented as an integer. In addition, the discrimination score, which is the standard of the slope management determination, is modified in the same manner, and if the score of the slope is 18 or more, it is determined to be defective. The reason that the discrimination score is low is that in the field inspection of the flat field, the four-way workpiece state, the covering state, the erosion occurrence, and the mooring state can not be released despite the defect. This is a burden on the investigator because of the liability for damage caused by the earth leakage after the dismantling of the slope. However, since the vegetation and greening facilities are relatively not directly related to the damage caused by the landslide, it is considered to be a management standard based on the results of on-site inspection.

The method according to the present invention can be implemented as a computer-readable code on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and a carrier wave (for example, transmission via the Internet). The computer-readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (5)

A method for selecting a reference factor for maintaining and releasing a sloppy ground,
Acquiring and storing a municipal facility inspection report previously issued by a municipal association and stored in a database of the municipal association;
The analysis results of the municipal facilities inspection report stored in the slope evaluation server are analyzed, and the state of the municipal facilities, the state of other facilities, the mooring state, the state of collapse and the occurrence of lapping ground, the other erosion, Obtaining 13 basic slope check factors as to whether or not there is damage to the facility, whether it is in the vicinity of the surrounding area, in the surrounding area, in the occurrence of the initial sulfur erosion, in the development of the surrounding area,
The slope evaluation server performs quantification II analysis for each of the basic slope check factors obtained in the slope facility inspection report to determine whether the four rectangular work check conditions, the four-way work state, the bottom mooring state, Selecting a plurality of final factors as the six factors of growth state, covering state of fresh stream, and state of other greening facilities;
Calculating a score and a range of each of the plurality of final factors of each of the plurality of final factors by setting a score range of the category and a rank of the rank correlation coefficient to set importance of each of the plurality of final factors; ; And
Generating a management reference table for determining the maintenance release of the warp using each of the final factors; A method of selecting a reference factor for maintaining and releasing a sloppy ground. delete delete delete 2. The method of claim 1, wherein generating the management criteria table comprises:
Calculating a discrimination hit rate for the plurality of final factors; And
Generating the management reference table in which an evaluation for each of the plurality of final factors can be written if the discrimination hit rate is equal to or greater than a predetermined reference discrimination hit rate; And selecting a reference factor for maintaining and releasing a rectangular shape.

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