Behavior and evaluation of an existing underground structure subjected to impulsive loads from an internal explosion
- Merrick and Co., Los Alamos, NM (United States)
An explosion is the result of a rapid chemical reaction which generates transient air pressure waves called blast waves. There has been much research on the processes of blast wave formation, propagation of blast waves, and quantification of the incident and reflected blast overpressures. The magnitude of blast overpressure, in a partially vented environment, is mainly a function of the type and quantity of detonating material, the amount of available venting, and the orientation and configuration of the reflecting surfaces. In addition to blast overpressure, an explosion can also generate high energy missiles (such as fragments), shock loads, and rapid rise of temperature in the confined space. This study concentrates on the effects of blast overpressure on a 40 feet diameter reinforced concrete cylinder with a hemispherical dome roof, supported on a 3 feet thick reinforced concrete pad, and buried under a minimum of 15 feet of soil used for radiation shielding at the top of the dome. The scope of this study is to determine whether the structure can withstand the blast overpressure generated by the postulated explosion without exceeding allowable design criteria.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 658121
- Report Number(s):
- LA-UR--97-3706; CONF-971190--; ON: DE98001528
- Country of Publication:
- United States
- Language:
- English
Similar Records
BEHAVIOR OF UNDERGROUND STRUCTURES SUBJECTED TO AN UNDERGROUND EXPLOSION
Blast loading and response of underground concrete-arch protective structures