or about 1/2 tons
about 23 tons per lineal foot or per square foot. This will considerably exceed
the distributed weight of the rollers, if
a·eestme
and a
if we the length of the roller at 15 feet, wheel base of 10 feet. But as the roller has the advantage of the impact due to a moving load, the dead weight of
howe
but there will be
No
the blocks
• proposed will probably prove sufficient, difficulty in increasing the test by adding additional tiers of weighting blocks. By adding more concrete the weight per
lineal foot will be increased to 30 tons and the weight per square foot to nearly
2 tons.
9.
The
concrete blocks may be formed
near the Gas Works
on the Western Praya from to Kennedy town. If on the Quay the
de
on
the edge of the
same derrick used for
blocks in the wall will be able to
1 for setting the along-
side the Quay, lift the blocks and place
them
on
Bayes;
; or a travelling
crane may
be employed for the purpose.
I
10.
" estimate the cost of the wall
as now
if built lineal foot. The estimated cost
• proposed at $58.09 per
61
of the corresponding
portion of Mr. Price's design is $65.21 per
lineal foot.
The details.
1
In the
is will be found
appendix
these estimates. The estimate does
not however include the Floating Derrick and Block Bayes. I am given to
stand that there
can
to under_
be constructed locally
for about £6,000. The two steam rollers
would not cost less than £5,000 including freight and erection:
MA.
Assuming the cost
£6,000 or $40,009,
1 of Plant to be
this distributed over the
length of the wall would be about $4 1/2 per lineal foot of wall, but even with this addition the cost of the wall would be less than that of the wall as originally proposed.
12.
alanned
To sum
up
the advanta
advantages
are: -
for the proposed modification
1. The stability of the wall will be ensured
as it will be erected on an
unstead
of
or a
winthing
unyielding base.
the work
2. The final completion of the
may
if