ABSTRACT
This chapter is divided into two sections. The first describes techniques of
improving and stabilizing the ground, with respect to both strength and
also permeability. The second describes the various lining techniques
commonly employed in tunnel construction. It should be noted that many
of the stabilization techniques and lining methods are intimately linked
with the tunnel construction methods described in Chapter 5, so the reader
is advised not to treat these chapters in isolation, but to treat both as part
of the tunnel construction process.