This paper is concerned with the re"ned numerical techniques for the seismic analysis as well as the free vibration analysis of liquid-storage tanks. In the numerical formulation of accurate added-mass matrix, for the construction of uncoupled-separated structural dynamic system, the liquid free-sur
Soil gas survey techniques for the investigation of underground storage tanks
โ Scribed by Schlender, Michael H. ;Rowe, Jerry
- Publisher
- American Institute of Chemical Engineers
- Year
- 1989
- Tongue
- English
- Weight
- 473 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0278-4491
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โฆ Synopsis
The sampling and analysis of near sugace soil gas has shown great promise for the investigations of underground storage tanks. Trace to elevated concentrations of volatile organic components in soil gas samples have been used to identqy source areas near buried tanks and map the migration of releases in groundwater and in the vadose
zone. Soil gas surveys are also an effective tool to position soil borings, excavations, and monitoring wells, while support equipment (drilling rigs, backhoe, etc.) is stiU on site. Two examples are presented where soil gas surveys were used to direct the investigation of underground storage tanks.
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## Abstract The scope of the headspace sampling technique for the analysis of solid samples is discussed, and the static and the dynamic headspace methods compared. Theoretical aspects relating to quantification are discussed. The paper considers both instrumental requirements and applications.