ENGINEERING-LITHOLOGICAL AND SEISMIC ASSESSMENT OF PARENT ROCKS (THE EXAMPLE OF CONSTRUCTION SITES IN NIZAMI DISTRICT)
Keywords:
construction site, parent rock, engineering and geological conditions, seismic exploration, Vs30 parameter, foundations, permeability, seismic resistanceAbstract
Parent rock is a fundamental concept in engineering geology and is essential for ensuring the reliability and safety of construction sites. Parent rock refers to dense, strong rocks found deep within the Earth, including limestone, sandstone, granite, and basalt. They have high density, low porosity, and low deformability, making them capable of effectively absorbing and transmitting both static and dynamic loads. The high propagation velocity of seismic waves in such rocks confirms their strength and stability.
The low permeability of parent rock reduces the influence of groundwater and reduces the risk of foundation erosion, weakening, and uneven precipitation. Therefore, studying the lithological composition, physical and mechanical properties, and depth of such rocks is of particular importance in engineering geological surveys. Incorrect assessment in geological conditions often leads to foundation deformations, water infiltration, and reduced stability at construction sites. Given the relevance of the topic, a comprehensive assessment of the engineering and geological conditions of construction sites in the Nizami District was conducted, and the properties of the parent rock were studied.
References
1. AzDTN 2.3.-1. Construction standards in seismic regions. Baku-2011 (original in Azerbaijan language)
2. Ipatov P.P., Strokova L.A. Mechanics of soils, foundations and foundations: Tomsk: Изд-во ТПУ, 2002.-228 p. 2011 (original in Russian language)
3. Investigating Geophysical Methods of Soil Engineering and Seismic Bedrock Parameters of IPEK Yaprak, Menemen Plain. September, 2017 Izmir, page 61. 2011 (original in Azerbaijan language)
4. Louie, J.N. Faster, Better: Shear-wave velocity to 100 meters depth from refraction microtremor arrays. Bulletin of the Seismological Society of America, 2001, v. 91, p. 347–364.
5. McMechan, G.A., Yedlin, M.J. Analysis of dispersive waves by wave field transformation. Geophysics, 1981, v. 46, p. 869–874.
6. Mammadov G.Sh., Hashimov A.J., Verdiyev A.E., Mammadova E.A. Fundamentals of engineering geology. Baku: Elm, 2012. – 798 p. 2011 (original in Azerbaijan language)
7. Nazarian S., Stokoe II K.H. In situ shear wave velocities from spectral analysis of surface waves. Proceedings of the World Conference on Earthquake Engineering, 1984.
8. Engineering-geological reports of the designed construction sites in the territory of Nizami district. “Mənzil” KM, “GEO-Servis” LLC, “GeoEngineering” LLC (1998–2025). 2011 (original in Azerbaijan language)
9. Panahi Sh.A., Karimov V.M., Tagiyev A.Sh. Engineering-geological properties of rocks. Baku, 2018. – 111 p. 2011 (original in Azerbaijan language)
10. Park C.B., Miller R.D., Xia J. Imaging dispersion curves of surface waves on multi-channel record. Society of Exploration Geophysicists, 1998.
11. “Garayev City” MTK (Nizami district, 2400th block). Engineering-geological report. Baku, 2018. “Apartment” K.M. 2011 (original in Azerbaijan language).