The effects of petrographic characteristics on engineering properties of conglomerates from Famenin region, northeast of Hamadan province

Document Type : Original Article

Authors

Geology Department, Bu-Ali Sina University, Hamedan-Iran, Khanlari_reza@Yahoo.com

Abstract

To understand the relationship between engineering characteristics and petrological features, eight samples of the Qom Formation conglomerates from Famenin region in North-east of Hamedan of province were collected. Samples were examined in the laboratory for determining the uniaxial compressive strength, point load strength index, modulus of elasticity, porosity, dry and saturation density. For determining the petrological features, textural and mineralogical parameters, thin sections of samples were studied. In this study, based on the results of statistical analysis, predictive relationships were developed to estimate physical and mechanical properties using petrological features. This study showed that the effects of texture properties on the engineering properties is more important than mineralogical composition. It also became clear that the packing proximity, packing density, grain shape, mean grain size, percentages of cement and matrix are textural features that have a significant impact on the physical and mechanical properties of studied conglomerates. In the present study, multiple linear regression (MLR) was used in four different steps including different combinations of petrological features as input variables for each engineering characteristic. Finally, the best relationships were developed to predict the engineering properties  of Conglomerates.

Keywords

Main Subjects

References

آدابی، م.ح.، ۱۳۶۶. سنگ‌های رسوبی شیمیایی – بیوشیمیایی. انتشارات آستان قدس رضوی، 344ص.
آقانباتی، س. ع.، 1385. زمین‌شناسی ایران. سازمان زمین شناسی و اکتشافات معدنی کشور، چاپ دوم، 586ص.
اهری پور، ر.، مصدق، ح.، 1385. مبانی رسوب‌شناسی. انتشارات سازمان آموزشی فزهیختگان علوی.
بلورچی، م.ح.، 1358. نقشه زمین‌شناسی کبودرآهنگ، مقیاس 1:250000، سازمان زمین شناسی و اکتشافات معدنی کشور.
پروین، ح.، 1385. سنگ‌شناسی رسوبی. انتشارات دانشگاه پیام نور، چاپ پنجم، 302 صفحه.
ساداتی، س.م.، خدابخش، س.، محسنی، ح.، 1384. واحدهای سنگی الیگومیوسن در شمال زون سنندج - سیرجان: مطالعه موردی در شرق و شمال شرق همدان، مجله علوم دانشگاه بوعلی، جلد2، شماره1، ص14-22.
Balan, B., Mohaghegh, S., Ameri, S., 1995. State- of- Art- in permeability determination from well   log data:Part 1- A comparative study. Model development. SPE, 30978: 17-25.
Bell, F.G., 1978a. The physical and mechanical properties of the Fell Sandstones, Northumberland, England. Engineering Geology, 12: 1–29.
Bell, F.G., 1978b. Petrographical factors relating to porosity and permeability in the Fell Sandstone. Quaterly Journal of Engineering Geology, 11(2): 113–126.
Deere, D.U., 1968. Geological considerations in rock mechanics in engineering practice (eds. Stagg K.G. and Zienkiewicz, O.C.),, Chapter. Practice 1-20. London: John Wiley and Sons.
Deere, D.U., Miller, R.P., 1966. Engineering classification and index properties for intact rock. U.S. Air Force Systems Command, Air Force Weapons Lab., Kirtland Air Force Base, New Mexicom, Technical Report, AFWL-TR, pp. 65–116.
Gong, Q.M., Zhao, J., 2009. Development of a rock mass characteristics model for TBM penetration rate prediction. International Journal of Rock Mechanics and Mining Science, 46(1): 8–18.
Gunes Yilmaz, N., Yurdakul, M., Goktan, R.M., 2007. Prediction of radial bit cutting force in high-strength rocks using multiple linear regression analysis. International Journal of Rock Mechanics and Mining Science, 44(6): 962–970.
Howarth, D.F. and Rowlands, J.C., 1986. Development of an  index to quantify rock texture for qualitative assessment of intact rock properties. Geotechal Testing Journal, 9: 169-179.
Hutchinson, C.S., 1974. Laboratoary handbook of petrography techniques. Wiley, New York, p 527.
Kahn, J.S., 1956. The analysis and distribution of the properties of packing in sand size sediments. Journal of Geology, 64: 385–395.
Pettijohn, F.J., 2000. Sedimentary Rocks. CBS Pup., New Delhi, 628p.
Sarkar, K., Singh, T.N., Reddy, D.V., 2009. Prediction of strength parameters by dynamic wave. Inter national Journal of Earth Sciences and Engineering, 2(1) :12–19.
Shakoor, A., and Bonelli, R. E., 1991. Relationship between petrographic charac-teristics engineering index properties and mechanical properties of selected sandstone. Bulletin of the Association of Engineering Geologists, 28 : 55-71.
Sharma, P.K., Khandelwal, M., Singh, T.N., 2011. A correlation between Schmidt hammer rebound numbers with impact strength index, slake durability index and P-wave velocity. International Journal of Earth Sciences, 100 :189–195.
Smart, B.D., Rowlands, N. and Isaac, A.K., 1982. Progress towards establishing re-lationships between the mineralogy and physical properties of coal measures rocks. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, 19 : 81-89.
Tamrakar, N.K., Yokota, S., and Shrestha, S.D., 2007. Relationships among me-chanical, physical and petrographic properties of Siwalik sandstones, Central Nepal Sub-Himalayas. Engineering Geology, 90: 105-123.
Ulusay, R., Gokceoglu, C., Sulukcu, S., 2001. Draft ISRM suggested method for determining block punch strength index (BPI). International Journal of Rock Mechanics and Mining Sciences, 38 :1113–1119.
Ulusay, R., Tureli, K., and Ider, M.H., 1994. Prediction of engineering properties of a selected litharenite sandstone from its petrographic characteristics using correla-tion and multivariable statistical techniques. Engineering Geology, 37 : 135-157.
Zorlu, K., Gokceoglu, C., Ocakoglu, F., Nefeslioglu, H.A., Acikalin, S., 2008. Prediction of uniaxial compressive strength of sandstones using petrography-based models. Engineering Geology, 96: 141–158.
Scientific Quarterly Journal of Iranian Association of Engineering Geology
Volume 7, Number 3 & 4
March 2014
Pages 27-42

Files

History

  • Receive Date: 25 February 2014
  • Revise Date: 20 March 2014
  • Accept Date: 17 June 2014

Share

How to cite

Statistics