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Research on chained regularity of perilous rock

Stemming from geomorphology

CHEN Hong-kai

Institute of Geotechnical Engineering, Chongqing Jiaotong University, Chongqing   400074 , P.R.China

Abstract：Formation, avalanche and movement of perilous rock are one of dynamic evolution processes of slope in the area of the Three Gorges Reservoir. Geomorphologic formalities of cliff with anti-terraces are macro-evidences for perilous rock to evolve by stages. On the basis of investigations in real-time field to about ten thousands of perilous rocks and geomorphologic analysis principle, the authors discover chained regularity of perilous rock in the area of the Three Gorges Reservoir. The regularity includes both of micro-chain and macro-chain. Micro-chain designates for perilous rock to form and avalanche gradually up-down from foot of cliff, while macro-chain identifies retreating of cliff backup from surface of slope. The regularity shows two models, one belongs to simple model only with one macro-chain, and another belongs to complex model with many macro-chains at the same time. Formation processes of rock cell and unloading of rock above the rock cell belong to the initial dynamics for perilous rock to develop.

Keywords: geography, chained regularity, geomorphologic evolution, perilous rock, the area of the Three Gorges Reservoir

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