KR20190055986A - LID floating matter blockage test evaluation system - Google Patents

LID floating matter blockage test evaluation system Download PDF

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KR20190055986A
KR20190055986A KR1020170152927A KR20170152927A KR20190055986A KR 20190055986 A KR20190055986 A KR 20190055986A KR 1020170152927 A KR1020170152927 A KR 1020170152927A KR 20170152927 A KR20170152927 A KR 20170152927A KR 20190055986 A KR20190055986 A KR 20190055986A
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permeable
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water
permeability
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권순철
안재훈
김태윤
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부산대학교 산학협력단
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082Investigating permeability by forcing a fluid through a sample
    • G01N15/0826Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/0806Details, e.g. sample holders, mounting samples for testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract

The present invention relates to a system for evaluating a LID floating matter blocking test, which is capable of accurately measuring a permeability coefficient through a permeability performance test for considering blocking depending on a constant permeability time, facilitating objective evaluation for LID element technology by quantitatively calculating cumulative solid load and pollutant reduction efficiency at a time of reducing 80% of the permeability coefficient through trend analysis of permeability coefficient reduction, and determining a maintenance time. The present invention can measure and evaluate a permeability performance depending on time by permeating a blocking particle mixture of a constant concentration to a permeability packing sample in a water level condition, and can be applied to various applications such as improving properties of the mixture or the like. The system for evaluating a LID floating matter blocking test comprises a mixing device (20), a permeability packing sample unit (30), and a measuring tank (40).

Description

LID 부유물 폐색시험 평가 시스템{LID floating matter blockage test evaluation system}The LID floating matter blockage test evaluation system

본 발명은 LID 부유물 폐색시험 평가 시스템에 관한 것으로, 좀 더 구체적으로는 일정 투수시간에 따른 폐색을 고려한 투수성능시험을 통하여 정확한 투수계수의 측정이 가능하고, 투수계수저감 추세 분석을 통한 80% 투수계수저감 시점에서의 누적고형물 부하 및 오염물 저감 효율을 정량적으로 산정하여 LID 요소기술에 대한 객관적인 평가가 가능하며 유지보수 시기를 판정할 수 있는 LID 부유물 폐색시험 평가 시스템에 관한 것이다.The present invention relates to a LID suspended matter occlusion test evaluation system, and more particularly, to a system for measuring the permeability coefficient of a LID suspension, which is capable of measuring an accurate permeability coefficient through a permeability test in consideration of occlusion time, The present invention relates to a LID suspended matter test evaluation system capable of objectively evaluating LID element technology by quantitatively calculating cumulative solid load and pollutant abatement efficiency at the time of coefficient reduction and determining maintenance time.

최근 지하수 자원의 감소, 도시하류지역의 수해증가, 도시평균기온 상승의 원인 중 하나로 인공구조물 중심으로 도시화의 진행, 즉 불투수면의 지속적인 증가를 들 수 있다. LID(저영향개발 : Low Impact Development)는 이러한 도시화에 따른 물순환의 왜곡을 해소하기 위한 대책 중 하나로서, 수문순환 상태를 도심 개발 이전에 가깝게 되도록 개발로 인한 영향을 최소화하기 위한 설계 기법 및 장치를 나타낸다.One of the causes of recent decrease in groundwater resources, increase in floods in urban areas, and rise in urban average temperature is the progress of urbanization centered on artificial structures, ie, a continuous increase in impervious surface area. LID (Low Impact Development) is one of the countermeasures to solve the water cycle distortion caused by urbanization. It is a design technique and device for minimizing the influence of development such that the hydrological cycle is close to that before urban development .

투수성 포장은 LID기법 중 하나로서, 주로 보도, 산책로, 주차장 등에 강우를 노반으로 침투시켜 지표면 유출수를 감소시키고 지하수를 공급하여 도시우수관리를 가능하게 하기 위한 것으로, 투수성 포장의 적용은 점차 확대되고 있는 추세이다.Permeable packaging is one of the LID techniques to reduce the surface runoff by penetrating rainfall into the roadbed, walkway, and parking lot, and to supply the groundwater to enable the urban quality management. .

이러한, 투수성 포장의 투수성능을 확인하기 위해서는, 설정된 크기로 투수성 포장(이하, '투수성 포장'으로 통칭 함)을 만들고, 이 투수포장이 사용되는 환경을 모사한 장치에 투수성 포장-지반 시스템을 위치시킨 후 세립질의 폐색입자가 혼합된 물을 투수시켜 시간에 따른 투수성능을 측정한다.In order to confirm the permeability of the permeable pavement, permeable pavement (hereinafter, referred to as 'permeable pavement') is formed in a predetermined size, and permeable pavement- After placing the ground system, water mixed with fine clay particles is permeated to measure the permeability with time.

한편, 기존의 투수성 포장의 폐색을 고려한 투수 성능을 평가하기 위한 시험방법으로, 특허문헌 1의 "투수포장재의 투수성능 지속성 검증 시험장치 및 방법" 에서 투수성능 지속성 검증을 위한 시험장치는 도 1에 도시된 바와 같이 KSF 4419 및 KSF 2494에 규정된 거푸기를 올려놓을 수 있는 테이블과, 테이블을 스프링으로 받쳐주는 몸체와, 테이블 밑면에 구비되고 테이블에 균일한 진동을 가해 거푸기에 내장된 투수포장재 표면에 놓인 오염물 역할의 협잡물이 투수포장재 내부의 공극으로 스며들도록 하는 진동발생기로 구성된다. 상기 문헌은 오염물을 도포 후 맑은 물을 투수시켜 진동수에 따른 투수성능을 측정하는 것으로, 30초의 60Hz 진동하는 동안 물이 빠지는데 3분을 초과한다면 투수성능이 없는 것으로 간주한다.In the meantime, as a test method for evaluating the permeability performance considering the occlusion of the existing permeable pavement, a test apparatus for verifying the permeability performance persistence in the " apparatus and method for verifying the permeability performance continuity of the permeable permeable material " A body for supporting the table with a spring, a body provided on the bottom of the table, a uniform vibration applied to the table and a water permeable packaging material surface embedded in the tab, as shown in Fig. And a vibration generator for causing a contaminant serving as a contaminant placed on the permeable packaging material to permeate into the pores inside the permeable packaging material. The above document refers to the measurement of the permeability according to the frequency by spraying clean water after application of the contaminants. If the water is released during the 30-second 60-Hz vibration and exceeds 3 minutes, the permeation performance is considered to be absent.

하지만, 상기 문헌의 장비는 물이 흐르는 동한 입자가 폐색되는 것이 아니고 물의 유입 전에 건조 상태에서 진동을 통해 입자가 공극 내로 폐색이 되기 때문에, 실제 물을 통해 입자가 유입되는 실제 현상과는 차이가 있다고 할 수 있다.However, the equipment of the above document is different from the actual phenomenon in which the particles flow through the water because the particles are not occluded by the water and the particles are closed in the pores through vibration in the dry state before the water is introduced can do.

그리고, 투수성 포장재 자체만을 시험대상으로 하기 때문에, 투수성 포장재와 하부 투수 기층 및 지반으로 이루어진 투수성 포장 시스템의 투수 및 폐색 특성은 고려할 수 없다는 한계가 있다.In addition, since the permeable packing material alone is used as the test object, there is a limit in that the permeability and permeability characteristics of the permeable packing system composed of the permeable packing material, the lower permeable layer and the ground can not be considered.

또한, 투수포장이 사용되는 실제환경에 맞춰 투수성능을 측정할 수 없기 때문에 투수계수를 미리 파악하여 혼합물의 물성을 개량하는데 이용할 수 없다는 한계가 있고, 투수성 포장의 기능 중 하나인 오염물질 여과 성능을 평가할 수 없다는 한계가 있다.In addition, since permeability performance can not be measured in accordance with the actual environment in which the permeable packaging is used, there is a limitation in that the permeability coefficient can not be grasped in advance to improve the physical properties of the mixture. There is a limitation that it can not be evaluated.

특허문헌 1 : 국내등록특허공보 제10-1131767호 "투수포장재의 투수성능 지속성 검증 시험장치 및 방법"(2012년 03월 23일 등록)Patent Document 1: Korean Patent Registration No. 10-1131767 " Test apparatus and method for verifying permeability performance persistence of permeable packaging material " (registered on Mar. 23, 2012)

따라서 본 발명은 이와 같은 종래 문제점을 개선하기 위해 제안된 것으로, 일정 투수시간에 따른 폐색을 고려한 투수성능시험을 통하여 정확한 투수계수의 측정이 가능하고, 투수계수저감 추세 분석을 통한 80% 투수계수저감 시점에서의 누적고형물 부하 및 오염물 저감 효율을 정량적으로 산정하여 LID 요소기술에 대한 객관적인 평가가 가능하며 유지보수 시기를 판정할 수 있는 새로운 형태의 LID 부유물 폐색시험 평가 시스템을 제공하는 것을 해결하고자 하는 과제로 한다.Accordingly, the present invention has been proposed in order to solve such a conventional problem, and it is possible to measure the permeability coefficient accurately by performing a permeability test in consideration of occlusion during a certain permeability time, and to decrease the permeability coefficient by 80% A new type of LID suspension closure test and evaluation system capable of objectively evaluating the LID element technology by quantitatively calculating the cumulative solid load and the pollutant abatement efficiency at the time point and determining the maintenance time .

그리고, 일정 농도의 페색입자 혼합물을 정수위 조건에서 투수포장시료에 투수시켜 시간에 따른 투수성능의 측정 및 평가가 가능하고, 이를 통해 혼합물의 물성을 개량하는 등의 다양한 응용이 가능한 새로운 형태의 LID 부유물 폐색시험 평가 시스템을 제공하는 것을 해결하고자 하는 다른 과제로 한다.It is also possible to measure and evaluate permeation performance over time by permeating a mixture of white particles of a certain concentration into a permeable packed sample under a water-saturated condition, thereby improving the physical properties of the mixture through a new type of LID suspension Another object of the present invention is to provide a closed test and evaluation system.

상술한 목적을 달성하기 위한 본 발명의 특징에 의하면, 시험수를 교반하는 교반장치(20)와; 상기 교반장치(20)로부터 분사되는 시험수를 내부에 마련된 투수포장시료(31)에 투과시켜 투수시간에 따른 폐색 성능시험을 수행하는 투수포장시료부(30)와; 상기 투수포장시료(31)를 통과한 상기 투수포장시료부(30) 내부의 시험수를 공급받아 상기 투수포장시료(31)에 대한 투수성능이 측정되도록 하는 측정조(40)를 포함하여, 상기 측정조(40)는 상기 투수포장시료(31)의 투수계수가 80%이상 감소되는 시점에서의 실시간 투수계수 저감추세분석, 누적고형물 부하량 분석, TSS 제거효율 분석이 가능한 것을 특징으로 한다.According to an aspect of the present invention for achieving the above-mentioned object, there is provided an agitation apparatus comprising: an agitating device (20) for agitating test water; A permeable packing sample part (30) for permeating the test water jetted from the stirring device (20) to a permeable packing sample (31) provided therein and performing a closing performance test according to permeation time; And a measuring tank (40) for receiving the test water in the permeable packaging sample (30) that has passed through the permeable packaging sample (31) and measuring the permeability of the permeable packaging sample (31) The measurement tank 40 is capable of analyzing the real-time permeability coefficient reduction tendency analysis, the cumulative solids load analysis, and the TSS removal efficiency analysis at the time when the permeability coefficient of the permeable packed sample 31 is reduced by 80% or more.

이와 같은 본 발명에 따른 LID 부유물 폐색시험 평가 시스템에서 폐색 성능시험은 상기 투수포장시료(31)의 초기 투수계수를 산정 후 폐색 성능시험을 실시하는 것을 특징으로 한다.The clogging performance test in the LID suspended matter clogging test evaluation system according to the present invention is characterized in that the initial permeability coefficient of the permeable packaged sample 31 is calculated and then the clogging performance test is performed.

그리고 본 발명에 따른 LID 부유물 폐색시험 평가 시스템에서 상기 초기 투수계수 산정은 상기 투수포장시료(31)에 청수를 채워 포화시키고, 상기 투수포장시료(31)에 청수를 지속적으로 공급하여 기포를 없애며, 상기 투수포장시료(31)에서 일정한 유출유량이 발생할 때까지 정수위 시험을 실시하되, 상기의 과정을 최소 3회이상 실시 후 산정된 평균값인 것을 특징으로 한다.In the LID suspended matter occlusion test evaluation system according to the present invention, the initial permeability coefficient is calculated by saturating the permeable packed sample 31 with fresh water, continuously supplying fresh water to the permeable packed sample 31 to remove air bubbles, A water level test is performed until a constant outflow flow rate is generated in the permeable packed sample 31. The water level test is an average value calculated after performing the above process at least three times.

또한, 본 발명에 따른 LID 부유물 폐색시험 평가 시스템에서 상기 폐색 성능시험은 상기 투수포장시료부(30)에 청수를 채워 포화시키고, 시험수를 교반하며, 교반된 시험수를 투수포장시료(31)에 분사하고, 상기 투수포장시료(31)에서 일정한 유출유량이 발생할 때까지 정수위 시험을 실시하여 상기 투수포장시료(31)의 투수계수가 초기 투수계수의 80%이상 감소시 시험을 종료하되, 상기의 과정을 최소 3회이상 실시 후 평균값을 산정하는 것을 특징으로 한다.In the LID suspending clogging test evaluation system according to the present invention, the clogging performance test is performed by filling the permeable sample 30 with fresh water to saturate it, stirring the test water, stirring the test water into the permeable sample 31, And the test is terminated when the water permeability coefficient of the permeable packaged sample (31) is reduced by 80% or more of the initial permeability coefficient by performing the water level test until a constant outflow flow rate is generated in the permeable packaged sample (31) Is performed at least three times, and the average value is calculated.

이상과 같이 본 발명에 따른 LID 부유물 폐색시험 평가 시스템에 의하면, 일정 투수시간에 따른 폐색을 고려한 투수성능시험을 통하여 정확한 투수계수의 측정이 가능하고, 투수계수저감 추세 분석을 통한 80% 투수계수저감 시점에서의 누적고형물 부하 및 오염물 저감 효율을 정량적으로 산정하여 LID 요소기술에 대한 객관적인 평가가 가능하며 유지보수 시기를 판정할 수 있는 효과가 있다.As described above, according to the LID suspension control test evaluation system according to the present invention, it is possible to measure the permeability coefficient accurately by performing the permeability test in consideration of the occlusion according to the constant permeability time, and to decrease the permeability coefficient by 80% It is possible to evaluate the LID element technology objectively and quantify the accumulated solid load and the pollutant abatement efficiency at the time point, and it is possible to determine the maintenance period.

그리고, 일정 농도의 페색입자 혼합물을 정수위 조건에서 투수포장시료에 투수시켜 시간에 따른 투수성능의 측정 및 평가가 가능하고, 이를 통해 혼합물의 물성을 개량하는 등의 다양한 응용이 가능한 효과가 있다.It is also possible to measure and evaluate the permeability of water through the permeable packed sample at a constant water concentration under a water level condition, thereby improving the physical properties of the mixture.

도 1은 종래 기술을 설명하기 위한 도면,
도 2는 본 발명의 바람직한 실시예에 따른 LID 부유물 폐색시험 평가 시스템의 구성도이다.
1 is a view for explaining a conventional technique,
2 is a block diagram of a system for evaluating the LID suspension status of a LID suspension according to a preferred embodiment of the present invention.

이하, 본 발명의 바람직한 실시예를 첨부된 도면에 의거하여 상세히 설명하며, 도 2에 있어서 동일한 기능을 수행하는 구성 요소에 대해서는 동일한 참조 번호를 병기한다. 한편, 도면의 도시 및 상세한 설명에 있어서 본 발명의 기술적 특징과 직접적으로 연관되지 않는 요소의 구체적인 기술적 구성 및 작용에 대한 상세한 설명 및 도시는 생략하고, 본 발명과 관련되는 기술적 구성만을 간략하게 도시하거나 설명하였다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 2, the same reference numerals are assigned to the elements performing the same function. In the drawings and the detailed description, detailed description of specific elements and functions of elements not directly related to the technical features of the present invention will be omitted. .

도 2를 참고하면, 본 발명의 바람직한 실시예에 따른 LID 부유물 폐색시험 평가 시스템(10)은 시험수를 교반하는 교반장치(20)와, 교반장치(20)로부터 분사되는 시험수를 내부에 마련된 투수포장시료(31)에 투과시켜 투수시간에 따른 폐색 성능시험을 수행하는 투수포장시료부(30)와, 투수포장시료(31)를 통과한 투수포장시료부(30) 내부의 시험수를 공급받아 투수포장시료(31)에 대한 투수성능이 측정되도록 하는 측정조(40)를 포함하여, 측정조(40)는 투수포장시료(31)의 투수계수가 80%이상 감소되는 시점에서의 실시간 투수계수 저감추세분석, 누적고형물 부하량 분석, TSS 제거효율 분석이 가능한 것을 특징으로 한다.Referring to FIG. 2, the LID suspended matter occlusion test evaluation system 10 according to the preferred embodiment of the present invention includes an agitation device 20 for agitating test water, a test device 20 for testing the test water injected from the agitation device 20 A permeable packing sample portion 30 for permeating the permeable packing sample 31 to perform a closing performance test according to the permeation time and a permeable packing portion 30 for permeating the permeable packaging sample portion 30 through the permeable packing sample 31 And the permeability of the water permeable packaging sample (31) is measured. The measuring tank (40) includes a measuring tank (40) for measuring the permeability of the water permeable packaging sample (31) Coefficient reduction trend analysis, cumulative solids load analysis, and TSS removal efficiency analysis.

교반장치(20)는 표준오염수와 청수를 공급받아 교반시킴으로써 시험수가 형성되도록 한다. 교반장치(20)는 상부 일측에 모터(21)가 설치되고, 내부에는 모터(21)에 연결된 회전축을 통해 회전되는 교반날개(22)가 마련되며, 하부에 시험수를 분사하기 위한 분사구(23)가 형성된다. 이러한, 교반장치(20)는 상부를 통해 내부에 공급된 표준오염수와 청수를 교반날개(22)의 회전으로 시험수를 형성시켜 투수포장시료부(30)에 시험수가 분사구(23)를 통해 분사되도록 한다. 여기서, 본 발명의 교반장치(20)는 시험수를 제외한 청수만을 공급받고, 교반날개(22)를 작동시키지 않는 방법으로 맑은 물(증류수) 상태인 청수만 투수포장시료부(30)에 공급되게 하는 것도 가능하다. 따라서, 본 발명에서는 맑은 물(증류수) 상태인 청수 또는 오염물이 섞인 설정농도의 표준오염수를 하나의 장치에서 선택적으로 공급하여 투수포장시료(31)에 투과할 수 있게 되어, 다양한 조건에서의 보다 정밀한 시험이 가능하게 된다. 여기서, 청수는 보통의 순수한 물이 아닌 다른 액체가 사용될 수 있다.The agitating device 20 is supplied with standard polluted water and fresh water, and stirred to form test water. The stirrer 20 is provided with a motor 21 at one side of the upper portion thereof and an agitating blade 22 for rotating the agitator 20 through a rotary shaft connected to the motor 21 is provided therein and an injection port 23 Is formed. The stirrer 20 forms a test water by rotating the stirring wing 22 with the standard contaminated water and fresh water supplied through the upper portion of the stirring apparatus 20 so that the test water is supplied to the permeable package sample portion 30 through the jet opening 23 . Here, the agitation apparatus 20 of the present invention is provided with only clean water except for the test water, and the clear water (distilled water) in the form of clear water (distilled water) is supplied to the permeable sample unit 30 It is also possible to do. Therefore, in the present invention, the standard polluted water having the set concentration of clean water or contaminated water in the clear water (distilled water) state can be selectively supplied from one apparatus to be permeated to the permeablepackaging sample 31, A precise test becomes possible. Here, the fresh water can be a liquid other than ordinary pure water.

투수포장시료부(30)는 교반장치(20)의 하부에 배치되고, 교반장치(20)의 분사구(23)를 통해 시험수가 분사되도록 투수포장시료(31)가 내부에 마련되며, 교반장치(20)의 분사구(23)를 통해 분사된 시험수가 투수포장시료(31)를 투과하면서 투수시간에 따른 폐색 성능시험을 수행하도록 한다. 투수포장시료부(30)는 교반장치(20)의 시험수를 내부에 마련된 투수포장시료(31)에 정수위 조건에서 투수되도록 한다.The permeable packaging sample part 30 is disposed at the lower part of the stirring device 20 and the permeable packing sample 31 is provided inside the stirrer 20 so that the test water is injected through the injection port 23, 20, the test sample injected through the injection port 23 is passed through the permeable sample 31 to perform the occlusion performance test according to the permeation time. The permeable packaging sample portion 30 allows the test water of the agitation device 20 to be permeated to the permeable packaged sample 31 provided therein under the condition of an underwater condition.

측정조(40)는 투수포장시료(31)를 통과한 투수포장시료부(30) 내부의 시험수를 공급받아 투수포장시료(31)에 대한 투수성능이 측정되도록 한다. 이러한, 측정조(40)는 상부가 개방된 통상으로 마련되어 투수포장시료부(30)의 측면에 위치되어 일정 투수시간에 따른 폐색 성능시험을 통하여 정확한 투수계수의 측정이 가능하도록 하고, 이에 의해 정확한 투수성능의 판별이 가능하게 된다.The measuring tank 40 receives the test water in the permeable packaging sample portion 30 that has passed through the permeable packaging sample 31 and allows the permeable performance of the permeable packaging sample 31 to be measured. The measurement tank 40 is normally provided with an open upper part and is positioned on the side surface of the permeable packaging sample part 30 so that accurate measurement of the permeability coefficient can be performed through occlusion performance test according to a constant permeability time, It is possible to determine the permeability performance.

이하, 폐색 성능시험을 수행하는 과정을 설명하면, 먼저, 초기 투수계수를 산정하고, 이후 폐색 성능시험을 수행하도록 한다.Hereinafter, the procedure of performing the closure performance test will be described. First, the initial permeability coefficient is calculated, and then the closure performance test is performed.

초기 투수계수를 산정하는 과정은 투수포장시료(31)에 청수를 채워 포화시키고, 투수포장시료(31)에 청수를 지속적으로 공급하여 기포를 없애도록 한다. 이때, 기포를 없애는 과정은 투수포장시료부(30)에 청수를 지속적으로 공급하여 청수를 월류시켜 일정한 동수경사를 유지하도록 한다. 이후, 투수포장시료(31)에서 일정한 유출유량이 발생할 때까지 30분 이상 정수위 시험을 실시하되, 상기의 과정을 최소 3회이상 실시하여 측정하고, 이때 산정된 평균값을 초기 투수계수로 지정한다.In the process of calculating the initial permeability coefficient, the permeable packed sample (31) is filled with fresh water to saturate and the fresh water is continuously supplied to the permeable packed sample (31) to remove bubbles. At this time, in the process of eliminating bubbles, fresh water is continuously supplied to the permeable packaging sample portion (30), and the fresh water is flowed over to maintain a constant divergent inclination. Thereafter, a water level test is performed for 30 minutes or more until a constant flow rate is generated in the permeable packed sample (31). The above procedure is performed at least three times, and the calculated average value is designated as the initial permeability coefficient.

상기의 초기 투수계수를 산정하기 위한 식은 아래와 같다.The equation for calculating the initial permeability coefficient is as follows.

Figure pat00001
Figure pat00001

(Q: 유입유량, h: 여재층 높이, A: 여과단면적, L:정수위차, t: 실험시간)(Q: inlet flow rate, h: height of media layer, A: filtration sectional area, L: integer level, t:

초기 투수계수가 산정되면, 폐색 성능시험을 수행하게 되는데, 폐색 성능시험은 투수포장시료부(30)에 청수를 채워 포화시킨다. 그리고, 교반장치(20)에서 표준오염수와 청수를 교반시켜 시험수를 형성하고, 교반장치(20)에서 형성된 시험수를 투수포장시료(31)에 분사하여 일정한 동수경사를 유지하도록 한다. 이후, 투수포장시료(31)에서 일정한 유출유량이 발생할 때까지 정수위 시험을 실시하여 투수포장시료(31)의 투수계수가 초기 투수계수의 80%이상 감소시 시험을 종료하되, 상기의 과정을 최소 3회이상 실시 후 평균값을 산정하도록 한다. 이때, 산정된 평균값은 폐색 성능시험 값으로 정한다.When the initial permeability coefficient is calculated, the occlusion performance test is performed. In the occlusion performance test, fresh water is filled in the permeable sample portion 30 to saturate. Then, the test water is formed by stirring the standard contaminated water and clean water in the agitation device 20, and the test water formed in the agitation device 20 is sprayed onto the permeable packaged sample 31 to maintain a constant number of inclination. Thereafter, the water level test is performed until a constant flow rate is generated in the permeable packed sample (31). When the permeability coefficient of the permeable packed sample (31) decreases by 80% or more of the initial permeability coefficient, the test is terminated. The average value should be calculated after three or more runs. At this time, the calculated average value is determined by the occlusion performance test value.

상기와 같은 과정을 통해 산정된 투수저감계수를 산정하는 식은 아래와 같다.The formula for estimating the permeability reduction coefficient estimated through the above procedure is as follows.

Figure pat00002
Figure pat00002

(Kc: 투수저감계수, KD: 폐색 성능시험 값, K0: 초기 투수계수)(Kc: permeability reduction coefficient, K D : closure performance test value, K 0 : initial permeability coefficient)

한편, 상기의 투수저감계수 시점에서의 누적고형물의 부하계수를 산정하는 식을 살펴보면 아래와 같다.Meanwhile, the formula for calculating the load factor of the accumulated solid at the time of the permeability reduction coefficient is as follows.

Figure pat00003
Figure pat00003

[Q : 유입유량(m3/min), C : 유입농도(mg/l), T : 지속시간(min), A : 면적(m2)][Q: influent flow (m3 / min), C: influent concentration (mg / l), T: duration (min)

이상과 같이 본 발명에 따른 LID 부유물 폐색시험 평가 시스템에 의하면, 일정 투수시간에 따른 폐색을 고려한 투수성능시험을 통하여 정확한 투수계수의 측정이 가능하고, 투수계수저감 추세 분석을 통한 80% 투수계수저감 시점에서의 누적고형물 부하 및 오염물 저감 효율을 정량적으로 산정하여 LID 요소기술에 대한 객관적인 평가가 가능하며 유지보수 시기를 판정할 수 있는 효과가 있다.As described above, according to the LID suspension control test evaluation system according to the present invention, it is possible to measure the permeability coefficient accurately by performing the permeability test in consideration of the occlusion according to the constant permeability time, and to decrease the permeability coefficient by 80% It is possible to evaluate the LID element technology objectively and quantify the accumulated solid load and the pollutant abatement efficiency at the time point, and it is possible to determine the maintenance period.

그리고, 일정 농도의 페색입자 혼합물을 정수위 조건에서 투수포장시료에 투수시켜 시간에 따른 투수성능의 측정 및 평가가 가능하고, 이를 통해 혼합물의 물성을 개량하는 등의 다양한 응용이 가능한 효과가 있다.It is also possible to measure and evaluate the permeability of water through the permeable packed sample at a constant water concentration under a water level condition, thereby improving the physical properties of the mixture.

상술한 바와 같은, 본 발명의 바람직한 실시예에 따른 LID 부유물 폐색시험 평가 시스템을 상기한 설명 및 도면에 따라 도시하였지만, 이는 예를 들어 설명한 것에 불과하며 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 변화 및 변경이 가능하다는 것을 이 분야의 통상적인 기술자들은 잘 이해할 수 있을 것이다.Although the above-described LID suspension flooding test evaluation system according to the preferred embodiment of the present invention has been described above with reference to the above description and drawings, it is to be understood that the present invention is not limited to the above-described embodiments and various changes and modifications within the scope of the present invention. It will be understood by those skilled in the art that changes and modifications may be made.

10 : LID 부유물 폐색시험 평가 시스템
20 : 교반장치 30 : 투수포장시료부
31 : 투수포장시료 40 : 측정조
10: LID suspension flood test evaluation system
20: stirrer 30: permeable packing sample part
31: pitcher package sample 40: measuring tank

Claims (4)

시험수를 교반하는 교반장치(20)와;
상기 교반장치(20)로부터 분사되는 시험수를 내부에 마련된 투수포장시료(31)에 투과시켜 투수시간에 따른 폐색 성능시험을 수행하는 투수포장시료부(30)와;
상기 투수포장시료(31)를 통과한 상기 투수포장시료부(30) 내부의 시험수를 공급받아 상기 투수포장시료(31)에 대한 투수성능이 측정되도록 하는 측정조(40)를 포함하여,
상기 측정조(40)는 상기 투수포장시료(31)의 투수계수가 80%이상 감소되는 시점에서의 실시간 투수계수 저감추세분석, 누적고형물 부하량 분석, TSS 제거효율 분석이 가능한 것을 특징으로 하는 LID 부유물 폐색시험 평가 시스템.
A stirrer 20 for stirring the test water;
A permeable packing sample part (30) for permeating the test water jetted from the stirring device (20) to a permeable packing sample (31) provided therein and performing a closing performance test according to permeation time;
And a measuring tank 40 for receiving the test water in the permeable packaging sample 30 that has passed through the permeable packaging sample 31 and measuring the permeability of the permeable packaging sample 31,
The measurement tank 40 is capable of analyzing the real-time permeability coefficient reduction tendency analysis, the cumulative solids load analysis, and the TSS removal efficiency analysis when the permeability coefficient of the permeable packing sample 31 is reduced by 80% or more. Occlusion test evaluation system.
제 1 항에 있어서,
폐색 성능시험은 상기 투수포장시료(31)의 초기 투수계수를 산정 후 폐색 성능시험을 실시하는 것을 특징으로 하는 LID 부유물 폐색시험 평가 시스템.
The method according to claim 1,
The closure performance test is performed by calculating the initial permeability coefficient of the permeable packaged sample (31) and then performing a closure performance test.
제 2 항에 있어서,
상기 초기 투수계수 산정은 상기 투수포장시료(31)에 청수를 채워 포화시키고, 상기 투수포장시료(31)에 청수를 지속적으로 공급하여 기포를 없애며, 상기 투수포장시료(31)에서 일정한 유출유량이 발생할 때까지 정수위 시험을 실시하되, 상기의 과정을 최소 3회이상 실시 후 산정된 평균값인 것을 특징으로 하는 LID 부유물 폐색시험 평가 시스템.
3. The method of claim 2,
The initial permeability coefficient is calculated by saturating the permeable packed sample 31 with fresh water and continuously supplying fresh water to the permeable packed sample 31 to remove bubbles. Wherein the LID suspension test is carried out at least three times, and the LID suspension test is carried out at least three times.
제 3 항에 있어서,
상기 폐색 성능시험은 상기 투수포장시료부(30)에 청수를 채워 포화시키고, 시험수를 교반하며, 교반된 시험수를 투수포장시료(31)에 분사하고, 상기 투수포장시료(31)에서 일정한 유출유량이 발생할 때까지 정수위 시험을 실시하여 상기 투수포장시료(31)의 투수계수가 초기 투수계수의 80%이상 감소시 시험을 종료하되, 상기의 과정을 최소 3회이상 실시 후 평균값을 산정하는 것을 특징으로 하는 LID 부유물 폐색시험 평가 시스템.
The method of claim 3,
The occlusion performance test is performed by filling the permeable sample 30 with fresh water to saturate it, stirring the test water, injecting the stirred test water into the permeable sample 31, The water level test is carried out until the flow rate of the permeate is generated so that the test is terminated when the permeability coefficient of the permeable packaged sample 31 is reduced by 80% or more of the initial permeability coefficient, and the average value is calculated at least three times LID float obstruction test evaluation system that features.
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Publication number Priority date Publication date Assignee Title
CN112394021A (en) * 2021-01-20 2021-02-23 西南交通大学 Indoor testing arrangement of permeable pavement structure osmotic coefficient
KR102338143B1 (en) * 2020-11-12 2021-12-10 부산대학교 산학협력단 Module-type test equipment to evaluate reduction performance of fine particles and coefficient of permeability of permeable pavement systems
CN115598038A (en) * 2022-12-14 2023-01-13 叙镇铁路有限责任公司(Cn) Indoor test determination device for blockage recovery capability of modified permeable pavement

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KR101131767B1 (en) 2011-11-22 2012-04-05 서울특별시 Apparatus and method for testing cloging phenomenon of permeable pavement

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KR101131767B1 (en) 2011-11-22 2012-04-05 서울특별시 Apparatus and method for testing cloging phenomenon of permeable pavement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102338143B1 (en) * 2020-11-12 2021-12-10 부산대학교 산학협력단 Module-type test equipment to evaluate reduction performance of fine particles and coefficient of permeability of permeable pavement systems
CN112394021A (en) * 2021-01-20 2021-02-23 西南交通大学 Indoor testing arrangement of permeable pavement structure osmotic coefficient
CN112394021B (en) * 2021-01-20 2021-04-09 西南交通大学 Indoor testing arrangement of permeable pavement structure osmotic coefficient
CN115598038A (en) * 2022-12-14 2023-01-13 叙镇铁路有限责任公司(Cn) Indoor test determination device for blockage recovery capability of modified permeable pavement

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