Chamber Blasting Hazard Identification And Evaluation Of The Construction Process

The chamber blasting have the advantage that working period is short, the equipments of construction is simple and the used for toss to blow up can reduce the rock soil shipment quantity etc. Now it is widely applied in the mine, railroad, transportation, irrigation, electric power, building, building materials, the land development, but blasting oneself belong to the very dangerous industry , the frequent accidents accompany with it since it appeared. At present, people have taken its safe problem more and more into account. According to it, this paper conducted the research method of the safety assessment method and applied researches of chamber blasting.This text first combines the characteristics of the chamber blasting itself, introduced some technical parameters of it, then use the basic principles of safety system engineering, identified the existent and dangerous factors of the construction process to carry on chamber blasting , and put forward the control measures. According the dangerous and harmful factors that recognized of, combine with the accident theories, consider the four factors of construction technique, the construction to manage, the construction of controlling, objective environment etc., by using a qualitative and quantitative way—Analytical Hierarchy Process(AHP), the chamber blasting safety assessment factors system is established , carried on the concrete analysis to each factor, and define the relative weights of the safety index.Adopting the model of multistage fuzzy mathematics, applying the method of safety assessment method of chamber blasting study in actual example, by the method of giving marks, combining the relative weights of safety assessment gained, through fuzzy comprehensive evaluation, the real safety grade of this example is draw, using the assessment method, the final result can reflect assessment system's safety state objectively.The research of chamber blasting of safety assessment method in the paper not only lead the safe science theories into the realm of blasting, but also can be apply in the concrete chamber blasting of construction safety assessment work, there is certain realistic meaning. In addition, it is useful for studying the safety assessment of other kings of blasting project.