Watertightness of concrete tunnel structures

Watertightness of concrete tunnel structures

Glerum, A.

Civil Engineering and Geosciences

Hydraulic Engineering

1982-06-01

The Netherlands are situated in the delta. of the rivers Rhine, Meuse and Scheldt. Therefore the ground mainly consists.of sediments, such as sand, clay and silt. In certain regions peat layers of varying thickness are found. The high permeability of some of these materials and the fact that the groundwater table is generally only 1 m below ground level, make an adequate watertightness one of the main features of tunnel engineering in the Netherlands. Tunnels in Holland are both of the immersed and cut-and-cover type. The first one being mainly used for river crossings, the second for on land built tunnels. A mixture of both types is the so-called caisson tunnel, where units of about 40m length are built on ground level and then lowered to their final depth by excavating the ground below the floor slab under pneumatic pressure. Although there are marked differences in these construction types, the watertightness problems are more or less the same.

tunnel
watertightness
seepage

http://resolver.tudelft.nl/uuid:58e12db1-9837-42f5-94af-c41196bd6b1f

TU Delft, Section Hydraulic Engineering

Internal publication 1982-1; Paper for the meeting of the working group "Research" of the International Tunnelling Association in Brighton, June 1982

Institutional Repository

report

© 1982 Glerum, A.