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Reflection and Semi Three-Dimensional Refraction Surveys for Mapping of Subsurface Cavities in the Northeastern Thailand: Case Studies at Ban Non Sa Bang and Ban Bo Dang, Amphoe Ban Muang, Changwat Sakon Nakhon
| Content Provider | Semantic Scholar |
|---|---|
| Author | Satarugsa, Peangta Khamcha, C. Buthpisert, A. Soisa, Tanat |
| Copyright Year | 2004 |
| Abstract | The purpose of this study was to evaluate the usefulness and suitability of seismic techniques for mapping subsurface cavities in northeastern Thailand in order to assess the possibility of land subsidence. Surveys were conducted at, and nearby, sinkhole areas using high-resolution reflection and semi three -dimensional refraction surveys at Ban Non Sa Bang and Ban Bo Dang. The survey results indicated that a seismic reflection survey is suitable for mapping the location of subsurface cavities under certain circumstances. Near-surface conditions, together with size and depth of subsur face cavities, appeared to influence to a large extent the success of the reflection survey. The presence of a subsurface cavity causes weakening events, with low frequency and amplitude. A seismic refraction survey did not seem to be of use in mapping subsurface cavities in the study areas, but additional trials are required to be certain of a refraction survey's usefulness for this purpose. Subsurface cavities in northeastern Thailand are likely to be formed at the interface between claystone and anhydrite/rock salt strata of the Maha Sarakham Formation. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://home.kku.ac.th/peangta/162_176_Paper_Peangta_Reflection.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
