Development and performance verification of induced drainage method for leakage treatment in existing underground structures

In this study, drainage systems were proposed to drain the leakage of groundwater in the existing underground concrete structures. Drainage technology consists of drainage board, wire mesh, fixed nail, and mortar with mineral. For the purpose of increasing the construction speed, the drainage board and wire mesh were attached on the surface of cement concrete using the air nailer and fixed nail. The mortar with 30% of blast furnace slag was sprayed on the drainage board and wire mesh using the spray mortar equipment. The field test construction was carried out in a conventional concrete lining tunnel and concrete retaining wall for performance verification of the drainage system in the field. There was no problem with performance degradation in the drainage system after three years. The bond strength tests were performed on the sprayed mortar at 14 days and about 3 years after field test construction. In case of attaching the wire mesh on the drainage board, the bond strengths of the sprayed mortar were 1.04 MPa at 14 days and 1.46 MPa about 3 years. In case of the drainage board without the wire mesh, the bond strengths of the sprayed mortar were 1.13 MPa at 14 days and 0.89 MPa, less than 1 MPa of bond strength criteria, about 3 years.

keywords: Underground structure, Groundwater, Leakage, Induced drainage, Bond strength, 지하구조물, 지하수, 누수, 유도배수, 부착력

참고문헌

1. Choo, J.H., Park, S.W., Kim, H.T., Jee, K.H., Yoon, T.G. (2011), “Analysis and cause of occurrence of lining cracks on NATM tunnel based on the precise inspection for safety and diagnosis - Part I”, Journal of Korean Tunnelling and Underground Space Association, Vol. 13, No. 3, pp. 199-214.

2. Kim, D.G., Jung, H.S., Choi, Y.N. (2008), Development of Safety Maintenance and Disaster Prevention Technology(V), KICT 2008-038, Korea Institute of Construction Technology.

3. Kim, D.G., Baek, Y., Shin, H.Y., Jung, H.S. (2009), Development of Safety Maintenance and Disaster Prevention Technology(VI), KICT 2009-069, Korea Institute of Construction Technology.

4. Kim, D.G., Jung, H.S., Bae, G.J., Shin, H.S. (2009), “Characterization of deterioration of concrete lining in tunnel structures”, Journal of Korean Tunnelling and Underground Space Association, Vol. 11, No. 4, pp. 387-391.

5. Kim, Y.S., Shin, H.C., Kim, Y.G. (2012), “Waterproofing method and new technologies for construction structure”, Magazine of Korea Concrete Institute, Vol. 24, No. 4, pp. 23-28.

6. Kim, H.T., Han, M.Y., Son, E.J., Han, R.H., Jung, J.M. (2008), ‘A study on the state of the art on the construction and the new technology of the underground structure (underpass, underground passageways)”, Proceedings of the Korea Concrete Institute, Vol. 20, No. 2, pp. 891-894.

7. Korea Rail Network Authority, (2016), http://kr.or.kr/sub/info.do?m=05020202.

8. Kwon, K.J., Oh, S.G. (2008), “A performance test method of waterproofing system to evaluate the responsiveness to the movement of box culvert structure for underground electronic power facility”, Magazine of Korea Concrete Institute, Vol. 20, No. 4, pp. 57-62.

9. Lee, Y.S., Park, S.W., Whang, I.B., Shin, Y.S., Kim, S.G. (2009), “Analysis of cause and deterioration about using 3-Arch tunnel”, Journal of Korean Tunnelling and Underground Space Association, Vol. 11, No. 1, pp. 97-105.

10.

10. Oh, S.G. (2005), Development of waterproofing method of ground structures applied to fully boned sheet(reverse tanking) and waterproofing concrete for crack safety, 04CCTI-C041008-02, Korea Agency for Infrastructure Technology Advancement.

11.

11. Ministry of Environment, (2012), Sewerage statistics.

12.

12. Mehta, P.K. (1993), “Concrete”, Prentice Hall, pp. 126-176.

13.

13. Michael, T.K. (1993), Waterproofing the Building Envelope, McGraw-Hill.

14.

14. Ministry of Land, Infrastructure and Transport, (2016), Yearbook of road bridge and tunnel Statistics.

15.

15. Nevilie, A.M. (1995), “Properties of concrete”, Fourth and Final Edition, Longman.

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논문 상세

Vol.19 No.3

운영중인 지하구조물 누수처리를 위한 유도배수공법 개발 및 성능 검증

Development and performance verification of induced drainage method for leakage treatment in existing underground structures

Abstract

참고문헌

(사)한국터널지하공간학회