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ISSN : 2233-8292

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논문 투고

Vol.16 No.5
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주방식 지하구조물의 설계 방법 고찰 Part II: 지보 설계 필요단면 검토

Consideration on design procedure of room-and-pillar underground structure part II: selection of shape to design supports

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2014, v.16 no.5, pp.497-506
이철호 (한국건설기술연구원)
허진석 ((주)에스코컨설턴트)
현영환 ((주)에스코컨설턴트)
장수호 (한국건설기술연구원)
이철호, 허진석, 현영환, & 장수호. (2014). 주방식 지하구조물의 설계 방법 고찰 Part II: 지보 설계 필요단면 검토. (사)한국터널지하공간학회, 16(5), 497-506.
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초록

본 연구에서는 동반논문에서 수행한 해석 결과를 이용하여 주방식 지하구조물의 안정성, 공간 활용성, 시공장비 적용성을검토하였다. 지하구조물 안정성은 강도응력비와 한계변형률 개념을 도입하여 적용하였으며 공간 활용성은 주어진 단면에 대한 공간의비율로 활용률을 판단하였고 시공장비 적용성은 굴착공사에서 사용되는 대표 장비를 선정하고 장비의 회전반경을 고려하였다. 제안된일련의 과정을 통해 모두 조건을 만족하는 지하구조물 형상을 선정할 수 있었으며 선정된 단면에 대한 지보재 설계가 가능할 것으로나타났다.

keywords
주방식 공법, 설계, 안정성, 지보재, Room-and-pillar method, Design, Stability, Support

Abstract

In this study, analysis results described in the companion paper was used to determine shapes ofroom-and-pillar underground structure. To select optimized shapes, structural stability, space applicability and vehicleapplicability were considered. In the structural stability step, ratio between strength and stress of the pillar and the criticalstrain at the roof span were adopted. The space applicability was used to retain the sufficient space of underground structureas its purpose is for human activity. The vehicle applicability was used to consider a radius for rotation of constructionequipments in the room-and-pillar underground structure. From the given procedure in this study, proper shapes of rockpillar and room can be selected to design supports at the pillar and roof.

keywords
주방식 공법, 설계, 안정성, 지보재, Room-and-pillar method, Design, Stability, Support

참고문헌

1.

1. Esterhuizen, G.S., Dolinar, D.R., Ellenberger, J.L, Prosser, L.J. (2011), Pillar and roof span design guidelines for underground stone mines, Department Of Health And Human Services, NIOSH, IC 9526.

2.

2. Lee, C., Chang, S-H, Shin, H-S. (2013a), “A numerical study on evaluation of unsupported pillar strength in the room and pillar method”, J. of Korean Tunn Undergr Sp Assoc, Vol. 15, No. 4, pp. 443-453 (in Korean).

3.

3. Lee, C., Chang, S-H, Shin, H-S. (2013b), “A study on conceptual evaluation of structural stability of room-and-pillar underground space”, J. of Korean Tunn Undergr Sp Assoc, Vol. 15, No. 6, pp. 585-597 (in Korean).

4.

4. Sakurai, S. (1982), “An evaluation technique of displacement measurements in tunnels,” Journal of Geotechnical Engineering, JCSE, Vol. 317, pp. 93-100

5.

5. Sakurai, S., I.Kawashima & T.Otani. (1995), “A criterion for assessing the stability of tunnels.”Eurock’93, Ribeiro e Sousa & Grossmann(eds), pp. 969-973.

6.

6. Sakurai, S. (1997), “Lessons Learned from Field Measurements in Tunnelling,” Tunnelling and Underground Space Technology, Vol. 12, No. 4, pp. 453-460.

7.

7. Hoke, E., Brown E.T. (1980), “Underground Excavation in Rock”, Institution of Mining and metallurgy.

8.

8. Korean Tunnelling and Underground Space Association (2004), tunnel engineering series 1, theory and practice of tunnel, Goomibook Seoul, pp. 345-346(in Korean)

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