The injury medical waste is the most serious infectious, which serious impact on human health and environmental issues. There are many hidden dangers in the injury medical waste processing, particularly in small and medium-sized hospitals. The current situation, classify and hazard are analysed, as well as problems and difficulties in injury medical waste disposal. The disposal mechods and countermeasures are put forward to dispose the injury medical waste for small and medium-sized hospitals. The research has certain practical significance for injury medical waste disposal.

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Abstract. Through the analysis and research on the vibration effect caused by the urban New Austrian (shallow embedded) metro tunnel blasting construction, the main harming effect of the blasting vibration on the surface buildings is summarized. According to the actual condition on the site of blasting construction in No.2 line of Dalian metro tunnel, the reasonable vibration monitoring plan for blasting vibration wave is established. At the same time, by means of the regression analysis about the monitoring results of blasting vibration, the vibration wave’s regression formula are set up, which can expression the correlation among the vibration velocity, the charge weight, the distance between the blasting fountains and the buildings. The results show that the Sadaovsk formula can be use to describe the effect of the metro tunnel blasting construction on the surface buildings accurately and reasonably in this construction segment. This kind of regression analysis method can be use to direct subsequent blasting excavation.