Browse > Article
http://dx.doi.org/10.9711/KTAJ.2016.18.3.291

A fundamental study on the ventilation analysis method for the network-type tunnel - focused on the none hardy-cross method  

Kim, Hyo-Gyu (JS G&B Inc.)
Choi, Pan-Gyu (JS G&B Inc.)
Ryu, Ji-Oh (Dept. of Automotive Engineering, Shin-Han University)
Lee, Chang-Woo (Dept. of Energy and Mineral Resources Engineering, Dong-A University)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.18, no.3, 2016 , pp. 291-303 More about this Journal
Abstract
Recently, various forms of diverging sections in tunnels have been designed as the demand for underground passageway in urban areas increases. Therefore, the complexity of the ventilation system in tunnels with diverging sections requires a ventilation analysis method different from the conventional method for the straight tunnels. None of the domestic and foreign tunnel ventilation design standards specifies the method for the ventilation network analysis, and the numerical analysis methods have been most widely used. This paper aims at reviewing the ventilation network analytical method applicable as the design standard. The proposed method is based on the characteristic equations rather than the numerical analysis. Thanks to the advantages of easy application, the Hardy-Cross method has been widely applied in the fields of mine ventilation and tunnel ventilation. However, limitations with the cutting errors in the Taylor series expansion and the convergence problem mainly caused by the mesh selection algorithm have been reported. Therefore, this paper examines the applicability of the ventilation analysis method for network-type tunnels with the gradient method that can analyze flow rate and pressure simultaneously without the configuration of mesh. A simple ventilation analysis method for network-type tunnels is proposed.
Keywords
Tunnel ventilation; Network; Mesh; Branch; Hardy-Cross method;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Ayres, F. (1974), "Matricses", Schau's outline series, McGrawHill Book Co, pp. 1-100.
2 Carpentier, P., Cohen, G., Hamam, Y. (1985), "Water network equilibrium. veriational approach and comparison of numerical algorithms", 7 th Congress on Operational Research, Bologna, Italy, pp. 38-43.
3 Cross, H. (1936), "Analysis of flow in networks of conduits or conductors", University of Illinois, Engineering Experimental Station, Bulletin No. 286, pp. 62-97.
4 Dubin, Ch. (1947), "Le calcul des reseaux mailles. Contribution al' Application Pratique de la Methode Hardy Cross" La Houille Blanchem Mai-Juin, pp. 213-223.
5 Hamam, Y.M., Brameller, A. (1971), "Hybrid method for the solution of piping networks", Proceedings Institution of Electrical Engineers, Vol. 118, No. 11, pp. 115-132.
6 Kim, N.Y. (2013), "Ventilation characteristics by piston effect in underground network road junctions", Doctoral Thesis at Department of Mechanical Engineering., Univ. Kook-min.
7 Lee, C.W., Lee, S.H., Choi, S.I., Baek, D.H., Moon, S.K. (1997), "Simulation modeling of the vehicle tunnel ventilation system using network theory" J. of Mineral and Energy Resources, Vol. 34, pp. 614-629.
8 Seoul Urban Infrastructure Division (2011), "Seoul ${\bigcirc}{\bigcirc}{\bigcirc}$ Tunnel : Private Provided Infrastructure", Proceedings Seoul Urban Infrastructure Division, 2011-93.
9 Todini, E., Pilati, S. (1987), "A gradient algorithm for the analysis of pipe networks", Proceedings International Conference on Computer Applications for Water Supply and Distribution, Leicester Polytechnic, 8-10 September, pp. 45-82.
10 Velde, K. (1988), "A computer simulation for longitudinal ventilation of a road tunnel with incoming and outgoing slip roads", Proceedings of the 6 th International Symposium on the Aerodynamics and Ventilation of Vehicle Tunnels, Durham, UK, p. C3-179-C3-201.
11 Williams, G.N. (1973), "Enhancements of convertgence of pipe network solutions", J. of the Hydraulics Division, ASCE, Vol. 99, No. HY7, pp. 1057-1067.