The authors base on the artificial simulation of rainfall device,and compare the differences of vertical erosion between soil and sand of Dahongshan mineral district,and analyze the main affect factors of vertical erosion.

As different composition of soil mineral and mechnical,rainfall has an different vertial erosion on three kinds of soil,and the release amount namely vertical erosion loss amout between 30 and 120 g/m3 of the soil is farmland soil column>floodplain soil column>loess soil column.

An engineering analysis model of normal penetration of projectiles into finite thickness composite laminates was established using the conservation laws of energy and momentum on the basis of constitutive relations and failure criterions of composites, and the calculating formula of V 50 for these types of laminates was given.

But this is not the case but when the shaped charge jet impacts ERA in a normal penetration.

Based on the concrete SCET used in the normal penetration by rigid projectile,with the multi-axial material model and strength criterion.

Effect of AOD Oxidizing Slag on Magnesia-Calcia Lining Erosion;

Numerical simulation of erosion for carbon-based composites impacted by hypervelocity particles;

Theoretical analysis about erosion of refractory by slag which produced from new shaft furnace technology for smelting chrome iron;

Properties of cement-based material mixed with grounded slag powder due to sulfate attack at low pH value;

Study on Resistance to Sulfate Attack on Mortar Containing Mineral Admixture;

Based on katogene mechanism of acid rain attacking concrete,the simulation test of the acid rain attacking concrete was analyzed by the shower-lighten cycle method,which sets up its parameters,including the pH value and ion concentration of the liquor, rainfall,temperature and temperature difference,humidity under alternating between dry and humid etc.