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Abstract
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Article Information:
Reliability Index Analysis on Anchor-Shotcret Support of Tunnel under Non-Symmetrical Condition
Ding Jihui, Yuan Man, Z Hang Chunbao and Xi Yinghua
Corresponding Author: Ding Jihui
Submitted: April 12, 2012
Accepted: May 18, 2012
Published: September 15, 2012 |
Abstract:
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In this study, we build the analytical models of reliability index on anchor-shotcret support structure
of tunnel which is non-symmetrica. Considered function’s high non-linear, the reliability index computation
is adopted by Monte-Carlo method. The calculation results show that reliability index decreases when variation
coefficients of crustal stress, cohesive force, inner friction angle, thickness of shotcrete layer, concrete
compression strength and extension strength of anchor-shotcret and anchoring force increased and reliability
index increases when variation coefficients of tunnel radius and final origin angle of broken wedge increases.
Variation coefficients of inner friction angle, tunnel radius and final origin angle of broken wedge has
outstanding influence on reliability index and then thickness of shotcrete layer, concrete compression strength,
cohesive force, crustal stress and anchoring force. Reliability index increases with lateral pressure factor
increased. Reliability index rapid decreases with crustal stress increased.
Key words: Anchor-shotcret support, elastic-plasticity theory, monte-carlo method, non-symmetry, reliability index, ,
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Abstract
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Cite this Reference:
Ding Jihui, Yuan Man, Z Hang Chunbao and Xi Yinghua, . Reliability Index Analysis on Anchor-Shotcret Support of Tunnel under Non-Symmetrical Condition. Research Journal of Applied Sciences, Engineering and Technology, (18): 3406-3409.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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