THE INVESTIGATION OF SILO AND TUNNEL LININGS
Abstract
Some aspects of the problem of determining the response of underground cylindrical tunnel and silo linings to blast-induced loading are presented. The studies include the effects on silo linings of differential horizontal soil displacements, vertical skin-friction forces generated by vertical compression of the surrounding soil, and axial response of a silo with integral cover to the blast-induced cover loading. A theoretical method for estimating the forces acting on a cylindrical structure subjected to air blastinduced ground shock is presented. The radial forces on the surface of the cylinder consist of the undisturbed free-field pressure component plus pressures proportiona to the radial velocity and displacement of the structure relative to the free-field particles. The effect of virtual mass, foundation modulus, and damping on the response was studied by obtaining solutions appropriate for tunnel and silo linings. Static tests on three metal, cylindrical tunnel models buried in dense Ottawa sand are presented and compared with the theoretical method.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1962
- Accession Number
- AD0278063
Entities
People
- R. R. Robinson
Organizations
- Air Force Special Weapons Center