EFFECT OF BACKPACKING ON STRUCTURE-MEDIUM INTERACTION.
Abstract
A soft crushable layer of material used as 'backpacking' was placed between a buried structure and the surrounding granular soil. Its effect on the pressures and motions transmitted to the structure by the soil was studied. The variables included the strength, thickness, and density of the backpacking and the size of the buried structure. Small rigid cylindrical structures were used in laboratory and field tests. The results show the measured pressures, velocities, and accelerations transmitted through the backpacking. The transmitted pressure was found to be a function of yield-point stress of the backpacking material. The transmitted accelerations and velocities were found to be reduced by the backpacking. The acceleration was reduced to a value of one-half to one-fifth of the acceleration of the unbackpacked structures, and the velocity was reduced to approximately 80 to 90 percent of the velocity of the unbackpacked structures. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1968
- Accession Number
- AD0837225
Entities
People
- Don A. Linger
Organizations
- University of New Mexico