Soil Improvement Through Vibro-Compaction and Vibro-Replacement,
Abstract
The majority of construction has been done on, in, or with soil. With the increase in environmental concerns and availability of suitable construction sites decreasing, the need to utilize what were once thought of as poor soil areas for construction is increasing. With the advent of ground modification techniques, soil can be extended. The basic concept of soil improvement, specifically drainage, densification, and reinforcement were developed long ago and remain valid today. One of the most significant improvement has been the introduction of the vibratory techniques used to densify soils. In the mid 1930's, the use of in place vibrators to densify soil was patented in Germany. The mechanical improvement of soil can be carried out in two ways. In the case of permeable soils, densification can be implemented (i.e., Vibro-compaction), and in the case of soft or low permeable soils, reinforcement (i.e., stone columns) is used. Stone columns or reinforcement is used when the soil cannot be densified, which in-turn leads to the process of densification. Soil densification is the increase of density with the decrease of volume occupied by the voids. This process is achieved through the introduction of addition materials in the constant volume, or the decrease of total volume occupied by in-situ material.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 28, 1991
- Accession Number
- ADA245093
Entities
People
- Christopher J. Griffith
Organizations
- University of Maryland