NDLI: Research on the interaction of rock-mass with multiple cracks under seepage pressure

Content Provider	IEEE Xplore Digital Library
Author	Hui Yang Xueliang Jiang
Copyright Year	2011
Description	Author affiliation: School of Civil Engineering, HuNan City University, Yiyang, China (Xueliang Jiang) \|\| School of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha, China (Hui Yang)
Abstract	In actual geotechnical engineering, many rock-mass which contians mang cracks, are in water environment. These adjacent cracks would interact with each and the seepage pressure changes cracks'status and also affects the stress state in rock. According to the theory of fracture mechanics, the mechanical model of rock-mass which including multi-crack under the action of seepage presure was set up. Based on principle of superposition, the formula for calculating stress intensity factor was built. The stress intensity factor of cracks are calculated in different conditions, such as different crack distance, different crack angle and different seepage pressure. The results suggest that, the crack tip' stress field caused by interaction of cracks has significant influence if diatance between two cracks is short. The influence of adjacent cracks interaction is related to the distance between two cracks, with the crack distance increases, the SIF is close to a fixed value which is calculated without considering the interaction between cracks. The results also show that the seepage pressure significant affects the stress field near crack tip and the stress intensity factor KI increases along with seepage pressure increasing. This research results can provide a theoretical basis to study the fractured rock mass failure under seepage pressure condition.
Starting Page	2512
Ending Page	2515
File Size	267925
Page Count	4
File Format	PDF
ISBN	9781424494361
e-ISBN	9781424494392
DOI	10.1109/MACE.2011.5987494
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stress intensity factor Integral equations Interaction Multiple cracks Rocks Solids Seepage pressure Mathematical model Surface cracks Stress Equations
Content Type	Text
Resource Type	Article

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