Engineering Geological Characteristics Based on Rock Mass Rating (RMR) and Geological Strength Index (GSI) in Jlantah Dam Intake Tunnel, Karanganyar District, Central Java Province
نویسندگان
چکیده
This paper presents the results of a geological engineering investigation in form rock mass characterization at Jlantah Dam Intake Tunnel. The study was carried out through technical mapping, core drill evaluation and supported by laboratory test data. determination classification research site has been using Rock Mass Rating (RMR) method, but it is necessary to use another method that more suitable based on for weak rocks, namely Geological Strength Index (GSI) method.The quality will be used as parameter determining excavation tunnel support system intake tunnel. showed area consisted lithology volcanic breccias tuff lapilli. GSI value location ranged from 15 - 65, while RMR 24 70. correlation between different when compared Hoek Brown (1997) similarities with Zhang et al (2019).
منابع مشابه
Rock Mass Characterization for Diversion Tunnels at Diamer Basha Dam, Pakistan – a design perspective
This research work presents a case study of rock mass characterization on diversion tunnels at Diamer Basha Dam, Pakistan. Geological and geotechnical studies were performed to characterize the rock mass along the axis of diversion tunnel. The core specimens retrieved were tested in laboratory and physical and mechanical properties of the rock mass were determined. Detailed discontinuity survey...
متن کاملEngineering geological studies used for redesigning and employing a hard rock TBM in soft rock formations of Chamshir water conveyance tunnel
The Chamshir water conveyance tunnel (CWCT) with a length of 7.4 km and boring diameter of 5.3 m is excavated using a refurbished single shield TBM, initially designed to work in hard rock formations. This study focuses on engineering geological issues, which are important for checking the suitability of this machine and proposing required modifications for improving its performance in soft roc...
متن کاملTunnel surrounding rock classification forecast based on the geological advanced prediction system in seismic area
The global earthquake disaster happened frequently in recent years, how to guide the construction correctly in seismic area becoming a problem to be solved, while the study on the tunnel geological advanced prediction system in seismic area is limited. This paper established an integrated prediction system which was combined with engineering geology analysis and geophysical method combined with...
متن کاملA Preliminary Assessment of Rock Slope Stability in Tropical Climates: A Case Study at Lafarge Quarry, Perak, Malaysia
The stability analysis of rock slopes is a complex task for the geotechnical engineers due to the complex nature of the rock mass in a tropical climate that often has discontinuities in several forms, and consequently, in several types of slope failures. In this work, a rock mass classification scheme is followed in a tropical environment using the Rock Mass Rating (RMR) and Geological St...
متن کاملEffect of engineering geological characteristics of Tehran’s recent alluvia on ground settlement due to tunneling
Ground settlement due to the shallow tunneling in urban areas can have considerable implications for aboveground civilinfrastructures. Engineering geological characteristics of the tunnel host ground including geotechnical parameters of surrounding soil,groundwater situation, and in situ stress condition are amongst the most important factors affecting settlement. In this research, groundsettle...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: E3S web of conferences
سال: 2021
ISSN: ['2555-0403', '2267-1242']
DOI: https://doi.org/10.1051/e3sconf/202132508003