A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Measurements of Ground Movements Around Three Tunnels in Loose Cohesionless Soil
The driving of three tunnels in loose cohesionless soils at Warrington has enabled ground deformations during bentonite tunneling to be monitored for a second time in Great Britain and enabled them to be compared with the settlements occurring when tunnels were driven in compressed air or in chemically stabilized ground. Depending on the degree of ground stabilization and on the tunneling technique the amount of ground lost during tunneling varied from 0.3 to 7.1 per cent of the excavated tunnel volume; settlements at the ground surface varied from 1.3 to 42.2 mm. It is concluded that the bentonite is likely to provide more effective ground support than compressed air in cohesionless soil and while chemical treatment was more effective than either, the possibility of some additional settlement during the injection process had to be considered. (Copyright (c) Crown Copyright 1980.)
Measurements of Ground Movements Around Three Tunnels in Loose Cohesionless Soil
The driving of three tunnels in loose cohesionless soils at Warrington has enabled ground deformations during bentonite tunneling to be monitored for a second time in Great Britain and enabled them to be compared with the settlements occurring when tunnels were driven in compressed air or in chemically stabilized ground. Depending on the degree of ground stabilization and on the tunneling technique the amount of ground lost during tunneling varied from 0.3 to 7.1 per cent of the excavated tunnel volume; settlements at the ground surface varied from 1.3 to 42.2 mm. It is concluded that the bentonite is likely to provide more effective ground support than compressed air in cohesionless soil and while chemical treatment was more effective than either, the possibility of some additional settlement during the injection process had to be considered. (Copyright (c) Crown Copyright 1980.)
Measurements of Ground Movements Around Three Tunnels in Loose Cohesionless Soil
M. D. Ryley (author) / P. E. Johnson (author) / M. P. O'Reilly (author) / D. A. Barratt (author)
1980
31 pages
Report
No indication
English
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