THE EFFECTIVENESS OF WALLS DESIGNED FOR THE PROTECTION OF STRUCTURES AGAINST AIRBLAST FROM HIGH EXPLOSIVES

This Paper describes a programme of research in which detailed measure ments of the blast environment were made behind a one-tenth scale vert ical blast wall when scaled realistic threats were detonated at approp riate distances from the wall. A grid for measurement was established out to six wall heights behind the wall and up to three wall heights a bove the ground. From the pressure-time histories thus obtained, conto ur plots of overpressure and impulse were developed. These were compar ed wit histories obtained when the wall was absent in order that the r egions that gained maximum benefit from the wall's presence could be i dentified.