Abstract
Eight shallow seismic refraction profiles were conducted at the proposed KACST expansion site, northwest of Riyadh, to estimate the near-surface geotechnical parameters for construction purposes. Both compressional (P) and shear (S) waves were acquired, processed, and interpreted using “time-term” technique which is a combination of linear least squares and delay time analysis to invert the first arrivals for a velocity section. The most important geotechnical near-surface parameters such as stress ratio, Poisson’s ratio, material index, concentration index, N value, and foundation material-bearing capacity are calculated. The results of these seismic measurements were compared with the results of borehole report in the project area in terms of number of layers, the lithological content, thicknesses, and N values of rock quality designation. A good matching between the results was observed particularly at the sites of boreholes.
الملخص
تم عمل القياسات السيزمية على امتداد ثمانية خطوط في الموقع المخصص لتوسعة مدينة الملك عبدالعزيز للعلوم والتقنية , شمال غرب مدينة الرياض لتعيين المدلولات الجيوتقنية للطبقات القريبة من سطح الأرضبهدف تقييم الموقع من الناحية الهندسية لغرض الإنشاءات والمباني . تم أنتاج وتسجيل كلاً من الموجات الأولية وموجات القص على امتداد خطوط القياس الثمانية , تحليل البيانات المسجلة تم باستخدام تقنية "Time-term" والتي تعتبر مزيج من كلاً من خوارزمية Linear least squares” " و ” Delay time” لتحويل أزمنة الوصول الأولية لموجات السيزمية المنكسرة إلى مقطع للسرعة . من السرعات تم حساب ابرز المعاملات الجيوتقنية الهامة للموقع والتي تشمل كلاً من معامل الانفعال , معامل بويشن , مؤشر المادة , مؤشر التركيز , قيم " N " بالإضافة إلى قيم قدرة التحمل لطبقة الأساس . تم مقارنة القيم المحسوبة من القياسات السيزمية مع نتائج آبار الاختبار بالمنطقة والتي أظهرت درجة عالية من التطابق بالأخص من ناحية عدد الطبقات وسمكها ونوع النسيج الجيولوجي بالإضافة إلى قيم " N ".
Similar content being viewed by others
References
Abd El Rahman M, Abd El Latif T (1990) Geophysical interpretations for shallow engineering site investigations at the area north of Sana’a, Yemen Arab Republic. MERC 4:41–51
Abd El Rahman M, Setto I, El-Werr A (1992) Inferring mechanical properties of the foundation materials at the 2nd industrial zone, city, from geophysical measurements. E.G.S. Proceedings of the 10th Annual Meeting, pp 50–61
Abd El-Rahman M (1989) Evaluation of the kinetic elastic moduli of the surface materials and application to engineering geologic maps at Maba-Risabah area (Dhamar Province), Northern Yemen. Egypt J Geol 33(1–2):229–250
Abd El-Rahman M (1991) The potential of absorption coefficient and seismic quality factor in delineating less sound foundation materials in Jabal Shib Az Sahara area, Northwest of Sanaa, Yemen Arab Republic. Egypt, M. E. R. C. Earth Sci, vol 5. Ain Shams University, pp 181–187
Birch F (1966) Handbook of physical constants. Geol Soc Amer Men 97:613
Bowels JE (1984) Physical and geotechnical properties of soils. McGraw-Hill, London
Bowles JE (1982) Foundation analysis and design, 2nd edn. McGraw-Hill International Book Company, London, p 587
Cordier JE (1984) Velocities in reflection seismology. Reidel Publ. Comp. Holland
Davis A, Taylor SD (1979) Dynamic elastic moduli logging of foundation materials. In: Ardus DA (ed) Proceedings of International Conference on Offshore Site Investigation. Graham and Trotman Limited, London
Gassman F (1973) Seismische Prospektion. Birkhaeuser, Stuttgart, p 417
Green R (1974) The seismic refraction method—a review. Geoexploration 12:259–284
Hobson GD (1970) Seismic methods in mining and ground water exploration, mining and ground water geophysics. Geol Surv Canada Econ Geol Report 26:148–176
Mooney HM (1976) Handbook of engineering geophysics. Bison Instruments Inc., Minneapolis
Musgrave AW (1967) Seismic refraction prospecting. Society of Exploration Geophysicists, Tulsa
Pakiser LC, Black RA (1957) Exploring for ancient channels with the refraction seismograph. Geophysics 22(1):32–47
Palmer D (1986) Refraction seismics. Geophysical Press, London
Parry RHG (1977) Estimation bearing capacity of sand from SPT values. JGED, ASCE, 103, Gt. 9:1014–1103
Redpath BB (1973a) A seismic refraction exploration for engineering site investigations. Technical report E-73-4, US Army engineer waterways experiment station, Vicksburg, MS
Redpath BB (1973b) Seismic refraction exploration for engineering site investigations: Technical Report E-73-4, Explosive Research Laboratory, Livermore, CA (NTIS Report AD-768 710)
Schmertmann JH (1975) Measurement of in-site shear strength. State of Art paper, 6th PSC, vol 2, pp 57–138
Scott JH (1973) Seismic refraction modeling by computer. Geophysics 38(2):271
Sheriff RE, Geldart LP (1986) Exploration seismology. Cambridge University Press, Cambridge, p 316
Sjogren B, Ofsthus A, Sandberg J (1979) Seismic classification of rock mass qualities. Geophysical Prospecting 27:10–40
Soil and Foundation Co. Ltd. (2007) Geotechnical investigation report for the proposed KACST project
Stumpel M, Kahler S, Meissner R, Nikereit B (1984) The use of seismic shear waves and compressional waves for lithological problems of shallow sediments. Geophys Prospect 32:662–675
Tatham RH (1982) Vp/Vs and lithology. Geophysics 47(3):336–344
Telford WM, Geldert LP, Sherif RE (1997) Applied Geophysics, Cambridge university press, London, p.751
Thomsen L (1986) Weak elastic anisotropy. Geophysics 1954–1966
Vaslet D, Al-Muallem MS, Maddah SS, Brosse JM, Fourniguet J, Breton JP, Le Nindre YM (1991) Geologic map of the Ar Riyad quadrangle, sheet 241, Kingdom of Saudi Arabia (with text): Saudi Arabian Directorate General of Mineral Resources, Jeddah, Geosciences Map, GM-121A
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Almalki, H., El-Werr, AK. & Abdel-Rahman, K. Estimation of near-surface geotechnical parameters using seismic measurements at the proposed KACST expansion site, Riyadh, KSA. Arab J Geosci 4, 1131–1150 (2011). https://doi.org/10.1007/s12517-010-0124-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12517-010-0124-3