Monitoring Changes In The Water Table Depth Using Seismic Surface Wave At A Silty Sand Site

سال انتشار: 1382
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,851

فایل این مقاله در 8 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:


تاریخ نمایه سازی: 10 آبان 1384

چکیده مقاله:

A very shallow (<5 m) seismic surface wave experiment, using the Spectral Analyses of Surface Wave (SASW) technique, was conducted to investigate the position of the water table in the Bosque Wetland Park (silty sand) site near El Paso, Texas in February and June 2002. We performed both laboratory (83 cm long with two receivers) and field experiments. Laboratory tests were held to verify the velocities of dry and saturated materials from the site. Direct measurements of the water level in two monitoring boreholes were taken during each field visit to clarify the saturation measurements obtained by the SASW surveys. These measurements indicated that the average depth of the water table was 2.75 m for winter and 2.2 m summer, which were about the same values obtained by the SASW method during the same periods (2.4 and 2.15m). Our shear wave velocity analysis suggested a three-layer model with the third layer having a lower shear velocity than the second layer for both sites. We interpret this low velocity layer as the fully saturated zone (water table) in this study. Our surface wave results indicated the average shear velocity of the saturation zones is ~130 m/s. The shear wave velocities and the geophysical layering determined by the SASW method are comparable with the measurements of the first two shear velocity layers obtained from seismic down-hole measurement and consistent with DC resistivity studies of the area.Our periodic observations suggest that the SASW technique has a high potential to locate and detect the change in behaviors of saturated/unsaturated sediments in the vicinity of El Paso, Texas.


Enayat Kalantarian

PhD. Student Candidate University of Texas at El Paso, TX., USA, Environmental Science and Engineering Program,

Diane Doser

Professor of Geological Science University of Texas at El Paso, TX., USA, Department of Geological Science,

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
  • Doser, D.L, S Nazarian, D yuan, and M Baker (1998).، ...
  • Nazarian S (1984)."In Situ D etermination of Elastic Moduli of ...
  • _ Langford, R. ; Schulze -Makuch, D. ; Pillai, S. ...
  • _ Kenneth H. Stokoe, I I _ M, ASCE and ...
  • _ Kenneth H, Stokoe, II2, M, ASCE, Sheil Nazarian, M, ...
  • Doug Crice (2001).، Borehole Shear-Wave Surveys for Engineering Site In ...
  • نمایش کامل مراجع