EPB Shield Research Articles

Patterns of soil deformations around tunnels. Application to the extension of Madrid Metro

In the period 1995–1999 more than 30 km of new tunnels have been constructed for the Madrid Metro. Most of them are excavated with EPB shield through stiff Tertiary layers. The paper presents the application of numerical and analytical solutions to the soil deformations measured during these works. About 60 test sections have been analysed, some of them including measurement of vertical and horizontal displacements within the ground. The values of the solution parameters (ground loss, tunnel ovalization, soil volumetric deformation) have been obtained by fitting the measured movements. The variation of all of the parameters with tunnel geometry and soil type is discussed.

開発機械 トンネル掘削機の動向

This report shows the tunnelling machine movement mainly for civil engineering works in Japan.In these twenty years, various new tunnelling technology has been developed under the strong demands to utilize underground space of cities.3 typical tunnelling machines-open TBM, EPB shield, Slurry type shield are introduced in this report.Technical trends of tunelling machines are;(1) Large diameter/deep location/long distance excavation(2) Free sectional area (double circular, ellipse, changeable diameter, etc.)(3) Start and docking technique(4) Curve excavation(5) ECL (Extruded Concrete Living)(6) AutomationAcontinuous developing movement of tunl/elling machine hereafter can be predicted

EPB shield tunneling in mixed face conditions : G. W. Clough & E. Leca, Journal of Geotechnical Engineering - ASCE, 119(10), 1993, pp 1640–1656

EPB shield tunneling in mixed face conditions : G. W. Clough & E. Leca, Journal of Geotechnical Engineering - ASCE, 119(10), 1993, pp 1640–1656

Drive by world's largest slurry shield is launched in Tokyo; Japan's largest EPB shield completes a 54-m drive

Drive by world's largest slurry shield is launched in Tokyo; Japan's largest EPB shield completes a 54-m drive

Tunnelling machines in soft ground: a comparison of slurry and EPB shield systems : Tunnlg Underground Space Technol V6, N2, June 1991, P169–174

Tunnelling machines in soft ground: a comparison of slurry and EPB shield systems : Tunnlg Underground Space Technol V6, N2, June 1991, P169–174

Tunnelling machines in soft ground: a comparison of slurry and EPB shield systems

Thanks to advances in tunnelling machine technology, tunnels can be driven by machines even in very difficult ground conditions. The two most important objectives in machine tunnelling are: (1) to support the ground reliably during excavation; and (2) to hold the surrounding ground behind the shield tail in balance by grouting while the lining is being erected. The author compares two established machine tunnelling methods—the slurry shield and the earth-pressure balanced shield tunnelling system—with regard to how they achieve these two objectives.

Slurry and EPB shields : Pearse, G World TunnlgV1, N4, Dec 1988, P304–315

A review is presented of current design in pressurised fluid and earth pressure balance (epb) tunnelling shields. An examination is made of slurry shields, hydroshields, thixshields, epb shields, mechanical earth pressure counter balance (mepcb) shields and universal shields. The origins and development of each type is traced and examples given of their use in recent years and on current projects. Brief details are given of their operation and conditions for which they are particularly suited. Tunnelling machine manufacturers are listed and details given of their range of machinery and its use in recent projects. The manufacturers listed include bade and theelen, decon engineering, fives-cail babcock, herrenknecht, hitachi zosen, howden tunnelling, iseka, kawasaki, komatsu, lovat, markham, mitsubishi, orensten and koppel, the robbins company, westfalia lunen and wirth. (TRRL)

Evaluation of soil response to EPB shield tunneling : Finno, R J; Clough, G W J Geotech Engng Div ASCEV111, N2, Feb 1985, P155–173

Evaluation of soil response to EPB shield tunneling : Finno, R J; Clough, G W J Geotech Engng Div ASCEV111, N2, Feb 1985, P155–173

Closure to “ Measured Soil Response to EPB Shield Tunneling ” by G. Wayne Clough, Bryan P. Sweeney, and Richard J. Finno (February, 1983)

Closure to “ <i>Measured Soil Response to EPB Shield Tunneling</i> ” by G. Wayne Clough, Bryan P. Sweeney, and Richard J. Finno (February, 1983)

Discussion of “ Measured Soil Response to EPB Shield Tunneling ” by G. Wayne Clough, Bryan P. Sweeney, and Richard J. Finno (February, 1983)

Discussion of “ <i>Measured Soil Response to EPB Shield Tunneling</i> ” by G. Wayne Clough, Bryan P. Sweeney, and Richard J. Finno (February, 1983)

Measured soil response to EPB shield tunneling : Clough, G W; Sweeney, B P; Finno, R J J Geotech Engng Div ASCE, V109, NGT2, Feb 1983, P131–149

Measured soil response to EPB shield tunneling : Clough, G W; Sweeney, B P; Finno, R J J Geotech Engng Div ASCE, V109, NGT2, Feb 1983, P131–149