DYNAMICS OF ROCK TEMPERATURE FIELD IN CRYOLITHIC ZONE TUNNELING
Abstract
The paper describes the mathematical model and algorithm for solving the axisymmetric problem of determining the unsteady thermal field around a cylindrical mining. The proposed model is described by the introduction in it the thermal boundary layer at the inner boundary of mining interface. The algorithm of the proposed model is tested by the calculation of the real rock thaw penetration located in the permafrost zone in the Khabarovsk region. The depth of thaw penetration is determined depending on the thickness of the heat insulating layer beyond the tunnel lining. The paper also presents the results of the depth calculation for rock thaw penetration after the completion of the tunnel construction using the cross mining method.
About the Authors
ALEKSANDR L. Isakov
Siberian Transport University
Russian Federation
Russian Federation
IRINA N. Gudkova
Siberian Transport University
Russian Federation
Russian Federation
References
1. Khokholov Y.A., Solovev D.E. Temperaturnyi rezhim mnogoletnemerzlogo gornogo massiva pri vedenii prokhodcheskikh rabot [Temperature conditions in permafrost during narrow works]. Mining Informational and Analytical Bulletin. 2009, No. 4, Pp. 270–275. (rus)
2. Solov'ev D.E. Teplovoi rezhim v gornoi vyrabotke pri vedenii prokhodcheskikh rabot v usloviyakh kriolitozony [Thermal conditions of mining during narrow works in cryolithic zone]. Molodoi uchenyi. 2011, V. 1. No 12. Pp. 53–55. (rus)
3. Isakov A.L., Kim Khyun Chol. Teplofizicheskaya diskretnaya model' promerzaniya grunta zemlyanogo polotna [Thermal discrete model of subgrade freezing]. Transport of the Urals, 2013. No. 2. Pp. 121–124. (rus)
Review
For citations:
Isakov A.L., Gudkova I.N. DYNAMICS OF ROCK TEMPERATURE FIELD IN CRYOLITHIC ZONE TUNNELING. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2015;(5):184-192. (In Russ.)
Views:
599
Email this article 