Effect of dispersant on the tangential adhesion strength between clay and metal for EPB shield tunnelling

When Earth Pressure Balance (EPB) shields pass through clayey ground, the working tool is frequently clogged, causing a low tunnelling rate and accelerating cutter disk abrasion. Clay clogging is considered to be due to the high tangential adhesion strength between the clay and metal. This paper inv...

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Veröffentlicht in:	Tunnelling and underground space technology 2020-01, Vol.95, p.103144, Article 103144
Hauptverfasser:	Wang, Shuying, Liu, Pengfei, Hu, Qinxin, Zhong, Jiazheng
Format:	Artikel
Sprache:	eng
Schlagworte:	Abrasion Adhesion Adhesion strength Adhesive strength Atterberg limits Bentonite Clay Consistency Consistency index Dispersants Dispersion Earth pressure EPB shield Kaolin Moisture content Screw conveyors Soil conditioning Soil strength Soils Tensile strength Tunneling shields Tunnels
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