Browse > Article
http://dx.doi.org/10.12652/Ksce.2011.31.6C.203

Characteristics of the Earth Pressure Magnitude and Distribution in Jointed Rockmass  

Son, Moorak (대구대학교 토목공학과)
Yoon, Cheolwon (대구대학교 토목공학과)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.6C, 2011 , pp. 203-212 More about this Journal
Abstract
This paper investigates the caharactheristics of the earth pressure magnigue and distribution in jointed rockmass for a safe and economic design and construction of earth retaining structures installed in rock stratum. For this purpose, this study will first investigate the limitations and problems of the existing earth pressure studies and then to overcome them th study will conduct the discontinuum numerical parametric studies based on the Discrete Element Method (DEM), which can consider the joint characteristics in rock stratum. The controlled parameters include rock type and joint conditions (joint shear strength and joint angle), and the magnitude and distribution characteristics of earth pressure have been investigated considering the interactions between the ground and the retaining structures. In addition, the comparison between the earth pressures induced in rock stratum and Peck's earth pressure for soil ground has been carried out. From the comparison, it is found that the earth pressure magnitude and distribution in jointed rockmass has been highly affected by rock type and joint condition and has shown different characteristics compared with the Peck's empirical earth pressure. This result would hereafter be utilized as an important information and a useful data for the assessment of earth pressure for designing a retaining structures installed in jointed rockmass.
Keywords
rock excavation; earth pressure; rock type; joint shear strength; soil-structure interactions;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김학문(2002) 도심지 터널굴착시 인접 구조물의 특성과 강성을 고려한 지반거동, 대한토목학회 논문집, 대한토목학회, 제22권 제3C호, pp. 355-364.
2 양구승(1996) 도심지 깊은 굴착시 인접지반 거동에 대한 분석, 박사학위논문, 서울대학교
3 유충식, 김연정(2000) 깊은굴착시 버팀보식 흙막이벽체의 거동, 대한토목학회 논문집, 대한토목학회, 제20권 제3C호, pp. 195-204.
4 이성민(2004) 도시철도기술자료집(2) : 개착터널, 서울특별시 지하철건설본부, pp. 427.
5 이종규, 전성곤(1993) 다층지반 굴착시 토류벽에 작용하는 토압분포, 한국지반공학회지, 한국지반공학회, 제9권, 제1호, pp. 59-68.
6 정은택, 김석기(1997) 다층지반에서의 굴착토류벽에 작용하는 토압분포에 관한 사례연구, 한국지반공학회 '97 봄 학술발표회논문집, 한국지반공학회, pp. 73-80.
7 채영수, 문일(1994) 국내지반조건을 고려한 흙막이벽체에 작용하는 토압, 한국지반공학회 '94 가을학술발표회 논문집, 한국지반공학회, pp. 129-138.
8 홍원표, 윤중만(1995) 지하굴착시 앵커지지흙막이벽에 작용하는 측방토압, 한국지반공학회지, 한국지반공학회, Vol. 11, No. 1, pp. 63-77.
9 Bienniawski, Z. T. (1976) Rock mass classification in rock engineering, John Wiley& Sons, New York.
10 Goodman R. E. (1989) Introduction to rock mechanics, Wiley & Sons, Yew York.
11 Hoek and Brown (1988) Underground Excavations in Rock, Institution of Mining and Metallurgy, London.
12 ITASCA Consulting Group, Inc. (2004) Universal Distinct Element Code, User's Manual, Version 4.0, minneapolis, Minnesota, U.S.A.
13 Peck, R. B. (1969) Deep Excavations and Tunneling in Soft Ground., State-of-the-Art report, Proceedings of the 7th International Conference on Soil Mechanics and Foundation Engineering, Mexico City, State-of-the Art Volume, pp. 225-290.
14 Tschebotarioff, G. P. (1973) Foundations, Retaining and Earth Structures, 2nd Ed., MGH.