English

DTIC ADA509548: Evaluation of Safety Distances for UXO Disposal Operations

In this paper an evaluation of danger areas to be evacuated during UXO disposal operations will be made. It is based on the following research programmes currently underway at the TNO Prins Maurits Laboratory (PML). * An evaluation of the safety distances prescribed in the currently-used Dutch directive concerning evacuation distances for UXO disposal operations has been made. The main conclusion of this study is that the safety distances for different net amount of explosive charge show little consistency. It is suggested to conduct a risk analysis to determine new guidelines for safety distances. * A study is underway on blast propagation and interaction with multiple urban structures. The main objective of this study is to provide a simple practical model which describes the influence of obstacles, like buildings and houses, on the propagation of blast waves. This model can be used to improve guidelines for blast damage to residential areas. Preliminary results have indicated that due to shielding, safety distances can be allowed to be smaller than follows from present-day risk analysis, which is based on the free-field pressure decay of the blast wave. * The main results of an

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