Highways Agency Report
Original Record
Shelfmark: SSR/TRL/IN1
Personal author: Hudson J A
Title: Ground quality assessment: channel tunnel machine
erection chamber - October 1974
Publisher: Transport and Road Research Laboratory, 1974
Physical description: 7p., charts
Price: Unpriced
Series: TRRL Internal Note IN 0053/74
Notes - general: Abstract: Measurements showed that the fac indexing
system developed at the tunnelling trials at Chinnor
could be used satisfactorily under the different
conditions and in the different chalk of the chalk was
found to be 6.7 MN/m2 (970 psi). The average
discontinuity spacing was 0.33 m, and most of the
discontinuities were sub-parallel to the tunnel axis
indicating that they have resulted from the excavation
process - either by stress changes of weathering
effects.
Keyword: Land Analysis
Keyword: Land Use
TRRL INTERNAL NOTE
copy:1 id:54046000301257 library:SSR location:SSR-SHELF