for these cubes tC be placed along thO arce of the several radii f~m
the tower. ~cause of practical difficulties, it was agreed with the
using setice that they would be set on the chord rather tb
of the Wrious radii and each cube wuld
face was perpendicularto a radiue mm
the arc
bS set individually so its
the ~-foot
line on Aonmn was relocated bSCausO it Ori@mllY
tower. The second
fell on the liaison
airstrip. The only difficultiesencounteredwith this phase of the
work retited from losses of material from the original shipment of the
prefabricatedtimber structuresand the reinforced Quonset hut. Plywood
was substitutedfor the sheathing In the constructionof the two timber
structures, ●nd special drills were fabricated to replace those loot
with the tool kit shipped with the reinforced Quonset hut.
Based on experiencewith the bases for the reinforced concrete
bildings the ●ggregate content of ●ll subsequentlypoured concrete
was ticreased to 16 cubic feet of aand and 16 cubic feet of coral
to produce ● 6 bagmixretkrthan
rock
a ‘7bag mix.
Pouring of the timing ataticn and the blast etructure presented
no difficultiesexcept anxnd the door frames. It was necezmary to cut
a 41’x I+nopening in the bottom of this frame and place the concrete by
hand. Because of time limltatione th
timing station on th
forms were raaoved from the
third day and from the blast stmcture on the
seventh day after pourifig. The only honeycomb of consequence occurred
in the timing station around one bank of pipes on the fkont wall and
thie wee thoroughly cleaned and grouted. Both side walls of the timing
etation develo].jdvertical hairline cracks from top to bottom, ● e did
26
section XVI
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