LParkabw!!!་སt als wiss li ་
275
6.
No. 10. This bridge is in the Shatin Va
mcdiately
to the north of the tunnel through the Kowloon range of
hills. It has 3 spans of 40 feet, the centre on of which “
provides for a watercourse whilst the two side spans are
Occupied occupied by the slopes of the embankment. The piers are
about 4 feet high, measured to the underside of the gir-
ders. He were informed by the Chief Resident Engineer
that the piers and abutments are founded on a bed of gravel,
and, from borings we have had taken, this appears to
be the case. Notwithstanding the fact that gravel consti- tutes a good foundation, we consider that the thickness of the concrete bases of both the piers and soutments, which varies from 13 to 24 inches, is insufficient. piers and abutgents are constructed of line concrete, faced with granite ashlar, We conater that, under the conditions prevailing at this bride, cement concrete sbould oave been usal, zore particularly for the construction
of the abutments.
the
22". Calvert. This is situatéi netagen Bridges 10 and 11. It is forred of an earthenware pipe surrounded with cement concrete, 4" thick. Unequal settlement, due to the weight of the overlying embankment, nas occured, with the result that the culvert has fractured and a portion of the crow has fallen in. This can be remedied in variops ways. 3.11. This is a small curverter two spans similar to No. 5. There is a considerable embankment over the top! of it and, should any settlement occur, the bank can easily be made good again,
No. 12. This is an arch bridge of three 20 foot spans, the two side spans of which are occupied by the slopes
No comments yet.
Private notes are available after approval.