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Mold shell with higher thermal conductivity was introduced in the article. Reinforced by the carbon fiber, the new type sol silicate mold shell could be made with much less layers while without reducing its strength. Therefore, the new-type mold shell should have higher thermal conductivity. Then measure its thickness, bend strength, analyze the dendritic crystal of the casting manufactured with the new-type mold shell. It was proved that the thickness had reduced by 25% and the bend strength did not decrease. And it performs better in the detection: the dendrite crystals are refined, the primary and secondary dendrite arm space are decreased, the secondary dendrite arms are restrained.

Tailings dam due to earthquake action may lead to severe slippage damage, and setting antiseismic measure is an effective method to prevent damage. Dynamic nonlinear finite element method is used in the efforts to analyze the earthquake reaction and the deformation characteristic. To reduce dam seismic deformation, the reinforcement effect of geotextiles, rock pressure and stone column is studied. Finally, a synthetically antiseismic measure that is composed of geotextiles-reinforced in sub-dam, rock pressure out of starter dam and densification foundation is proposed. It is found that the synthetically antiseismic measure produces better antiseismic effect, and offers a consult for the antiseismic design of tailings dam.

Removed due to plagiarism

It analyses different kinds of risk factors of real estate investment, and establishes a suit of scientific index system about the risk assessment of real estate investment. And this paper not only establishes the risk assessment model of real estate projects in view of fuzzy-synthetical evaluation, but also uses this model to make a risk assessment of Ganzhou Tianyue real estate project, showing the feasibility of the model by examples.