ROCK COLLAPSE MECHANISM ON HIGH-STEEP SLOPE FAILURE IN SUB-HORIZONTAL THICK-BEDDED MOUNTAINS

FENG Zhen; LI Bin; HE Kai

2014 Vol. 20, No. 2

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FENG Zhen, LI Bin, HE Kai. ROCK COLLAPSE MECHANISM ON HIGH-STEEP SLOPE FAILURE IN SUB-HORIZONTAL THICK-BEDDED MOUNTAINS[J]. Journal of Geomechanics, 2014, 20(2): 123-131.

Citation:

FENG Zhen, LI Bin, HE Kai. ROCK COLLAPSE MECHANISM ON HIGH-STEEP SLOPE FAILURE IN SUB-HORIZONTAL THICK-BEDDED MOUNTAINS[J]. Journal of Geomechanics, 2014, 20(2): 123-131.

ROCK COLLAPSE MECHANISM ON HIGH-STEEP SLOPE FAILURE IN SUB-HORIZONTAL THICK-BEDDED MOUNTAINS

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
Key laboratory of Neotectonic and Goehazard, Ministry of Land and Resources, Beijing 100081, China
3.
School of Geology Engineering and Geomatics, Chang'an University, Xi'an 710054, China

Received Date: 12 February 2014

Publish Date: 25 June 2014

Abstract

Abstract

Sub-horizontal thick bedding slope shows a gentle dip of approximately 0~10°and strata structure of hard on soft, or hard interbedded with soft. It forms a high and steep terrain and is prone to rock collapse. Reviewing a lot of references, failure process and initiation mechanism, as well as failure modes of high-steep slope in sub-horizontal thick bedding mountains are analyzed in terms of rock mass failure mechanism. Six geomechanic models are summarized such as slipe-tensile, creep-tensile, slipe-shear, shear-rupture, shear-slipe and split-bulk. Corresponding to the reconginition features of geological structure are also presented.
- sub-horizontal bedding slope /
- vertical tectonic joints /
- failure mechanism of rock mass /
- failure mode /
- geomechanic model

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References

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