Permeability Characteristics of Geosynthetics Vertical Barrier Connections for the Prevention of Contaminants Diffusion

doi:10.15683/kosdi.2022.3.31.001

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2022 Vol.18, Issue 1 Next Page

Original Article

Permeability Characteristics of Geosynthetics Vertical Barrier Connections for the Prevention of Contaminants Diffusion 오염물질 확산방지를 위한 토목섬유 연직차수벽 연결부의 투수성능 평가: 박정준*
Jeong Jun Park*; Research Professor, Incheon Disaster Prevention Research Center, Incheon National University, Incheon, Republic of Korea

31 March 2022. pp. 1-9

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Abstract

Purpose: In this study, we used hydrophilic waterstop used in geosynthetics vertical barrier system to evaluate the performance of impermeability under sealing conditions. Method: ASTM D5887 and ASTM D6766 were applied to determine the capability of the connection during the geosynthetics vertical barrier system. Hydrophilic waterstop was saturated in each solution and the weight, thickness, and volume changes were analyzed over elapsed time. Hydrophilic waterstop was installed at the geosynthetics vertical barrier system connection to evaluate the permeability characteristics. Results: As the expansion reaction time of hydrophilic waterstop increased relatively under saline conditions, the decrease in permeability also showed a smaller decrease in fresh water. Furthermore, the method of engagement of the geosynthetics vertical barrier system showed somewhat better performance of the impermeability due to the large pressure resistance caused by the roll joint type than interlock type. Conclusion: In urban pollutants, which can estimate the outflow of pollutants such as oil storage facilities and industrial complexes, proactive response technologies that can prevent the contaminant diffusion can significantly reduce the damage.

Keywords

Geosynthetics Vertical Barrier System

Permeability Performance

Hydrophilic Waterstop

Contaminant Diffusion

Connection Type

연구목적: 본 연구에서는 토목섬유 연직차수시스템에 사용되는 팽창 지수재를 사용하여 지수재의 팽창에 따른 차수성능을 평가하였다. 연구방법: 토목섬유 연직차수 공법 적용시 연결부에 대한 투수능을 판단하기 위하여 ASTM D5887과 ASTM D6766을 준용하였다. 팽창 지수재를 각 용액에 포화시킨 후 시간경과에 따른 무게, 두께, 부피 변화를 분석하였으며, 토목섬유 연직차수벽 연결부에 팽창지수재를 설치하여 투수 특성을 평가하였다. 연구결과: 염수조건에서 지수재의 팽창반응 시간이 상대적으로 늘어남에 따라 투수능의 저하도 담수에서 보다 작은 감소폭을 나타내었다. 또한 토목섬유 연직차수재료의 결속 방법에 따라 롤 이음방식이 인터록 방식 보다 수두차에 의한 압력저항이 커서 차수성능이 다소 우수하게 나타났다. 결론: 주유소, 유류저장시설 및 산업단지 등 오염물의 유출을 추정할 수 있는 도심지 오염원에서는 오염물질 확산을 방지할 수 있는 사전대응 기술이 피해규모를 현격하게 감소시킬 수 있다.

키워드

토목섬유 연직차수벽

투수성능

팽창지수재

오염 물질 확산

연결방식

References

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Wu, H.N., Shen, S.L., Liao, S.M., Yin Z.Y. (2015). "Longitudinal structural modelling of shield tunnels considering shearing dislocation between segmental ring." Tunnel Underground Space Technology, Vol. 50, pp. 317-323. 10.1016/j.tust.2015.08.001
Xue, Q., Zhang, Q., Liu, L. (2012). "Impact of high concentration solutions on hydraulic properties of geosynthetic clay liner materials." Materials, Vol. 5, pp. 2326-2341. 10.3390/ma5112326 Yun, S.Y., An, H.K., Oh, M., Lee, J.Y. (2019). "A study on the evaluation of permeability and structure for calcium bentonite-sand mixtures." Journal of Korean Geosynthetics Society, Vol. 18, No. 2, pp. 1-10.

Information

Publisher :The Korean Society of Disaster Information
Publisher(Ko) :한국재난정보학회
Journal Title :Journal of the Society of Disaster Information
Journal Title(Ko) :한국재난정보학회논문집
Volume : 18
No :1
Pages :1-9
DOI :https://doi.org/10.15683/kosdi.2022.3.31.001

[1] Awad, Y.M., Kim, S.C., Abd EI-Azeem, S.A.M., Kim, K.H., Kim, K.R., Kim, K.J., Jeon, C., Lee, S.S. (2014). "Veterinary antibiotics contamination in water, sediment, and soil near a swine manure composting facility." Environmental Earth Science, Vol. 71, pp.1433-1440. 10.1007/s12665-013-2548-z

[2] Blowes, D.W., Ptacek, C.J., Jambor, J.L. (1997). "In-Situ remediation of chromate contaminated groundwater using permeable reactive walls." Environmental Science & Technology, Vol. 31, pp. 3348-3357. 10.1021/es960844b

[3] Boni, M.R., Sbaffoni, S. (2009). "The potential of conpost-based biobarriers for Cr(VI) revomal from contaminated groundwater: Column test." Journal of Hazardous Materials, Vol. 166, pp. 1087-1095. 10.1016/j.jhazmat.2008.12.036 Kim Y.H., Lim, D.H., Lee, J.Y. (2001). "A feasibility study on the deep soil mixing barrier to control contaminated groundwater." Journal of Soil and Groundwater Environment, Vol. 6, No. 3, pp. 53-59.

[4] Lee, S.W., Jeoung, J.H., Hwang, J.H. (2009). "Evaluation of hydrophilic waterstop for shield TBM tunnel under high water pressure." Proceedings of Korean Geo-Environmental Conference, Seoul, Korea, pp.389-392.

[5] Ławniczak, Ł., Woźniak-Karczewska, M., Loibner, A.P., Heipieper, H.J., Chrzanowski, Ł. (2020). "Microbial degradation of hydrocarbons-basic principles for bioremediation: A review." Molecules, Vol. 25, p. 856. 10.3390/molecules25040856 PMC7070569

[6] Ministry of Environment (2007). Guidelines for Cleaning Contaminated Soil, 11-1480000-000841-01, Sejong-si, Korea, p. 214.

[7] Ministry of Environment (2009). Purification of Pollution Guideline; Environment of Korea, Sejong-si, Korea.

[8] Park, J.J., Kim, S.H. (2018). "Field investigation for identification of contamination sources in petroleum-contaminated site." Journal of the Society of Disaster Information, Vol. 14, No. 2, pp. 141-153.

[9] Shackelford, D.D., Meier, A., Sample-Lord, K. (2016). "Limiting membrane and diffusion behavior of a geosynthetic clay liner." Geotextile and Geomembrane, Vol. 44, pp. 707-718. 10.1016/j.geotexmem.2016.05.009

[10] Tang, Z., Zhang, L., Huang, Q., Yang, Y., Nie, Z., Cheng, J., Yang, J., Wang, Y., Chao, M. (2015). "Contamination and risk of heavy metals in soils and sediments from a typical plastic waste recycling area in North China." Ecotoxicoloty and Environmental Safety, Vol. 112, pp. 343-351. 10.1016/j.ecoenv.2015.08.006 Teefy, D.A. (1997). "Remediation technologies screening matrix and reference guide: Version III." Remediation Journal, Vol. 8, No. 1, pp. 115-121. 10.1002/rem.3440080111

[11] U.S. EPA (2001). Cost Analyses for Selected Groundwater Cleanup Projects; Pump and Treat System and Permeable Reactive Barriers, Solid Waste and Emergency Response(5102G), USEPA, 542-R-00-013.

[12] Wu, H.N., Shen, S.L., Liao, S.M., Yin Z.Y. (2015). "Longitudinal structural modelling of shield tunnels considering shearing dislocation between segmental ring." Tunnel Underground Space Technology, Vol. 50, pp. 317-323. 10.1016/j.tust.2015.08.001

[13] Xue, Q., Zhang, Q., Liu, L. (2012). "Impact of high concentration solutions on hydraulic properties of geosynthetic clay liner materials." Materials, Vol. 5, pp. 2326-2341. 10.3390/ma5112326 Yun, S.Y., An, H.K., Oh, M., Lee, J.Y. (2019). "A study on the evaluation of permeability and structure for calcium bentonite-sand mixtures." Journal of Korean Geosynthetics Society, Vol. 18, No. 2, pp. 1-10.

Journal of the Society of Disaster Information ISSN:1976-2208(Print) 2671-5287(Online) 한국재난정보학회논문집

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