This paper provides a formula for calculating ground surface shock motion induced by underground contained explosions and presents two isolation methods which can be taken in strong shock surroundings.

Based on morphological characteristics of gully heads, this paper applied fractal geometrical theory to analyze fractal curvature and fractal dimension of soil particle-size distribution of the gullies investigated, and discovered the correlation between gullies morphology and development under different land-use patterns.

Study on vegetation restoration technology of gully in Yuanmou hot-dry valley;

Analysis on Development Characteristics and Process of Gully in Yuanmon Basin on Lower Reaches of Jinsha River;

According to the geological conditions revealed by the excavation, the engineering characteristics of these defective geological bodies are summarized,with emphasis on the mechanism of the formation of the cumulatively weathered deep channel in the bedding rock slope or gully.