ABSTRACT
The so-called fourth dimension of a metropolis is the underground space beneath a city which typically includes structures such as tunnels, which facilitate transport and provide gas, water and other supplies. Underground space may also be utilised for living, working and recreational facilities and industrial storage. These volumes focus on underg
TABLE OF CONTENTS
part |2 pages
Section 1: Underground city design, planning of underground constructions
part |2 pages
Section 2: Geotechnical survey and improvement of ground mass
part |2 pages
Section 3: Research, development and design of underground constructions in built-up areas
