Mechanized tunnelling in hydrothermally altered grounds: The effect of hydrothermal fluids on the rock behaviour in the central Iran

The disasters caused by the high rock temperature are increasingly prominent. To accurately assess the temperature at the rock-lining interface in high rock temperature tunnels, the rock thermal conductivity evaluation coefficient was introduced to propose a method for calculating interface contact thermal resistance that accounts for the influence of the surrounding rock lithology. This method, based on a disc model, offers precise insights into the thermal resistance between the surrounding rock and the tunnel lining. To validate the efficacy of this method, initial numerical simulations and subsequently performed laboratory experiments across various rock-concrete interfaces were conducted. Laboratory experiments reveal that the interface contact thermal resistance between rock and concrete specimens tends to decrease as temperatures rise from 20°C to 80°C. Moreover, a substantial increase in interfacial contact thermal resistance was observed when dealing with higher-grade surrounding rock (indicating lower quality), reaching up to 111.24 %. The maximum relative error observed in the results of the calculation method is 8.64 %, well within the acceptable range of 15 %, confirming its reliability and practicality for engineering applications. These research findings can serve as a valuable reference for designing support structures in high-temperature rock tunnels and advancing disaster prevention and mitigation technologies.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Mechanized tunnelling in hydrothermally altered grounds: The effect of hydrothermal fluids on the rock behaviour in the central Iran

Cited by 4 publications

References 26 publications

Introducing a new classification of soft rocks based on the main geological and engineering aspects

Introducing a new classification of soft rocks based on the main geological and engineering aspects

Geo-mechanical model test on excavation and support of deep tunnel crossing a fault under hydro-mechanical coupled condition

Calculation Method of Interface Contact Thermal Resistance between Rock and Lining in High Rock Temperature Tunnels Considering the Lithology

Contact Info

Product

Resources

About