Attenuation Plateau Characteristics and Fitting Analysis of the Dynamic Compaction Shockwave
Publication: IACGE 2013: Challenges and Recent Advances in Geotechnical and Seismic Research and Practices
Abstract
The attenuation plateau formed during radiation of dynamic compaction shockwave has a severe impact on construction work in loess backfill site and safety of buildings nearby. With essential targets of finding out reasons for attenuation plateau formation and providing basis for safe distance determination, geophysical prospecting was adopted in the test for in-depth investigation on the attenuation plateau characteristics of shockwave so as to provide basic data for attenuation law study of shockwave. Appropriate cut-off frequency was selected according to the test results and energy composition characteristics of elastic wave in semi-infinite soil. The shockwave energy was divided into body wave energy and surface wave energy in order to analyze energy attenuation characteristics of different waves. It is confirmed that the main reasons for attenuation plateau formation in the area were proportion and radiation characteristics of body wave energy. On this basis, staircase method was used to fit the radiation attenuation characteristics of dynamic compaction shockwave through subsection regression and compare with traditional fitting methods. The results showed that in close-distance and high-density dynamic compaction work, staircase method can be more accurate to mark out safe distance.
Get full access to this article
View all available purchase options and get full access to this chapter.
Information & Authors
Information
Published In
Copyright
© 2013 American Society of Civil Engineers.
History
Published online: Nov 12, 2013
ASCE Technical Topics:
- Analysis (by type)
- Chemical processes
- Chemistry
- Compacted soils
- Compaction (material)
- Continuum mechanics
- Dynamic analysis
- Dynamic structural analysis
- Dynamics (solid mechanics)
- Energy engineering
- Energy sources (by type)
- Engineering fundamentals
- Engineering mechanics
- Environmental engineering
- Geomechanics
- Geotechnical engineering
- Hydro power
- Materials characterization
- Materials engineering
- Radiation
- Renewable energy
- Soil mechanics
- Soils (by type)
- Solid mechanics
- Structural analysis
- Structural dynamics
- Structural engineering
- Surface waves
- Waves (mechanics)
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.