Methodology to quantify rock behavior around shallow tunnels by Rock Engineering Systems

다국어 초록 (Multilingual Abstract)

For quantitative identification of rock behavior
in shallow tunnels, we recommend using the rock behavior index
(RBI) within the Rock Engineering Systems (RES)
approach. RES can aid engineers in effectively determining
complex and un-structured rock behavior utilizing interaction
matrices. Rock behavior types can be classified into three
groups: cave-in, rock fall and plastic deformation. Seven parameters
influence rock behavior: rock mass compressive
strength, rock quality designation (RQD), joint surface condition,
stress, ground water, earthquake, and tunnel span. An
advantage of RES is its ability to obtain each parameter’s
weighting. We quantified the rock behavior into RBI on fall,
cave-in, and plastic deformation. The study results demonstrate
that RES can give engineers quantitative information on
rock behavior. The proposed model is illustrated via a case
study on Seoul Metro Line 9.

다국어 초록 (Multilingual Abstract)

For quantitative identification of rock behavior
in shallow tunnels, we recommend using the rock behavior index
(RBI) within the Rock Engineering Systems (RES)
approach. RES can aid engineers in effectively determining
complex and un-structured rock behavior utilizing interaction
matrices. Rock behavior types can be classified into three
groups: cave-in, rock fall and plastic deformation. Seven parameters
influence rock behavior: rock mass compressive
strength, rock quality designation (RQD), joint surface condition,
stress, ground water, earthquake, and tunnel span. An
advantage of RES is its ability to obtain each parameter’s
weighting. We quantified the rock behavior into RBI on fall,
cave-in, and plastic deformation. The study results demonstrate
that RES can give engineers quantitative information on
rock behavior. The proposed model is illustrated via a case
study on Seoul Metro Line 9.

참고문헌 (Reference)

1 Kaiser P. K., "Underground works in hard rock tunneling and mining" 2000

2 Matthew, M., "The River Test Catchment Surveillance Project, South Water Utilities Final Research Report" Department of Civil Engineering, University of Surrey 101-, 1998

3 Martin C. D., "Stress, instability and design of underground excavations" 40 : 1027-1047, 2003

4 Goel R. K., "Status of tunnelling and underground construction activities and technologies in India" 16 : 63-75, 2001

5 Hudson, J. A., "Rock Mechanics Principles in Engineering Practice, In CIRIA Ground Engineering Report: Underground Construction" 1989

6 Skagius, K., "Performance assessment of the geosphere barrier of deep geological repository for spent fuel. The use of interaction matrices for identification, structuring and ranking of features, events and processes" 176 : 155-162, 1997

7 Goricki A., "New developments for the design and construction of tunnels in complex rock masses" 41 (41): 720-725, 2004

8 Sakuri S., "Lessons learned from field measurements in tunnelling" 12 : 453-460, 1997

9 Martin, C. D., "Hoek‐Brown parameters for predicting the depth of brittle failure around tunnels" 36 (36): 136-151, 1999

10 Stille H., "Ground behavior and rock mass composition in underground excavations" 23 : 46-64, 2008

11 Palmstrom A., "Ground behavior and rock engineering tools for underground excavations" 22 : 363-376, 2007

12 Poschl I., "Geotechnical risk in rock mass characterization‐a concept" 145-154, 2004

13 Cai M., "Estimation of rock mass deformation modulus and strength of jointed hard rock masses using the GSI system" 41 : 3-19, 2004

14 Singh M., "Critical strain and squeezing of rock mass in tunnels" 22 : 343-350, 2007

15 Davies, J. P., "Application of interaction matrices to the problem of sewer collapse" 11-, 1999

16 Benardos A. G., "A methodology for assessing geotechnical hazards for TBM tunneling‐illustrated by Athens Metro, Greece" 41 : 987-999, 2004

17 Leopold, L. B., "A Procedure for Evaluating Environmental Impact" Government Printing Office 1971

18 Hudson, J. A., "A New Approach to Studying Complete Rock Engineering Problems" 25 : 93-105, 1992

19 Mazzoccola, D. F., "A Comprehensive Method of Rock Mass Characterization for Indicating Natural Slope Instability" 29 : 37-56, 1996