Page 146 - Water Standards
P. 146
are as follows:
1) It should usually be set up near the borrow area. In case,
high usage of aggregates, close transportation distance,
and available site, the aggregate processing plant may also
be set up near the concrete batching plant.
2 ) A coarse crushing workshop of artificial sandstone
processing should be set up as near the concrete system as
possible, in order to jointly utilize the storage area of the
product.
3) Foundations for major equipment shall be stable, and with
enough bearing capacity.
4) The necessary protection distance from residential areas
shall be maintained to reduce the influence of noise and
dust.
5 The volume of the aggregate storage area may be set at 50%⁃
80% of the monthly average value of peak periods, and during
periods of flooding and freezing when mining stops, an extra margin of
20% of usage during the mining period shall be allowed for. In addi⁃
tion, the volume shall comply with the natural dehydration require⁃
ments of the aggregate. If the total volume of the storage area is large,
more rough materials or semi⁃finished product should be stockpiled,
and the stockpile height may be relatively large.
6 Stockpiling and transportation of aggregate product shall meet
the following requirements:
1) The storage area shall have excellent sewage and drainage
systems.
2) Partition walls shall be set up to avoid mixing of various
aggregates, and the wall height may be determined ac⁃
cording to the angle of kinetic friction (34°⁃37°) of the
aggregate, and with an additional height of 0 5m.
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