TNAG-0273-FCO40-309-Scheme-for-development-of-container-terminal-at-Hong-Kong-1970 — Page 34

1.1

Independent Piled Structure

7.11 Description. A piled structure forms the working apron and is sited some distance seaward of the main reclamation. It is connected to the container-marshalling area by piled approaches. The reclamation is protected by a rubble mound suitably armoured.

+14.25)

[HW+7.0° [1,W+2.0°

-35.0 400

WORKING APRON

$1 CONTAINER-CRANE

TRACK SO GAUGE

IN 100

HOLLOW

CIRCULAR

P.C. PILES

APPROX

EXISTING

[1

1 F

[]

扫F

SOFTI

COMPACT

SEA

SOIL

SECTION 'A' — 'A'

'A

CONTAINER STACKING

ACCESS BRIDGES

WORKING

APRON

CONTAINER-CRANE RAILS

850

PLAN

ACCESS

BRIDGE

20"x 20" P. CAPILES

RUBBLE MOUND

11

11

ニュー

7.11

7.12 Advantages:-

7.13

7.14

(a) Less fill required for reclamation which can be completed ahead of the structure. (b) The length of berth and working apron can be varied independent of the reclamation. (c) Crane rail settlement virtually eliminated.

Disadvantages:-

(a) The ships berth a long way from the main container-marshalling area making this

arrangement operationally less efficient.

(b) The space between the working apron and the reclamation is sterilized.

(c) The cost is high as a large area of piled structure is required.

(d) Crane rail gauge must be decided at the design stage.

Order of Cost. From $18,000 to $26,000 per ft. run of berth depending partly on length of piles required.

7.15 Suitability. Although suitable for conventional berths where transit sheds would be sited

on the working apron, it is less efficient than other designs for container operations.

25