Fan Hao 范灏• Master in 2014 , Tongji University • Joined CCDC 2014

• Site Engineer in HILLSTA• 2014. 8 ~ 2016.4 in charge of External works

• Site Engineer in ECO • 2016.4 ~ Now in charge of 34 Townhouses

External WorkHillsta Project

Shared by FAN HAO

Hillsta (at CCK/Bukit Panjang)•3 Blocks (20-23 stories), 20 townhouse units, totally 416

units•1 MSCP (5 decks)•A lot of Lifestyle facilities and landscape.

External work Scope•Drain, Sewage, underground service.(PUB SP)•Road, retaining wall (FSSD LTA)• Swimming pools •Pavilions, canopies, link ways• Landscape plantings (NPARK)• External floor finishing•Common area ID works

Duration and Critical date• Started at 2012.11• First T.O.P. inspection time was 2015.11.30. (36 Months)• Main Building structure finished at 2014.10. (24 Months)• External Work started at 2014.9 and finished at 2015.11, (15 Months)

Challenges of External Works•Drawings complicated•Proper construction sequence•Weather: prey to Dragon King•Critical task of each project•Site Coordination

Example1: External work between Tower A and B

• Spa Pavilions • Spa pool and Children pool• Feature Wall• Function Room• Relaxation pool

How was it built?

External work between Tower A and B• (1). Excavation and cast pump room and water tank 1

External work between Tower A and B• (2). Excavation and cast pump room and water tank 2

External work between Tower A and B• (3). cast pool 1, pool 2, pool 3

External work between Tower A and B• (4). Cast Retaining wall 1; cast pool 4 base

External work between Tower A and B• (5). Cast Retaining wall2; bend starter bars of pool4; backfill with long arm

External work between Tower A and B• (6). Cast of function room, Remove steel plate and excavate pool 5

External work between Tower A and B• (7). Cast pool 4 wall

Example2: External work between Tower A and C• Meeting Pavilion• Relaxation Pool• Feature Wall• Function Room• Fire engine access• Drop-off canopy

How was it built?

External work between Tower A and C• (1). Excavation and cast pump room and water tank

External work between Tower A and C• (2). Pavilion slab and function room

External work between Tower A and C• (3). Swimming pool base(after A B inside work finish)

External work between Tower A and C• (4). Retaining wall

External work between Tower A and C• (5). Backfill and compact

External work between Tower A and C• (6). Cast Driveway slab, pavilion steel structure hoisting

Example3: Driveway before Townhouse E• Guardhouse• Flower Arbor• Power Cable and

Telecom cables• Alarm control wires• Hydro pipe, main water

inlet• Gas trench• Unit water supply

How was it built?

Driveway before Townhouse E• Excavation and boundary wall

Driveway before Townhouse E• Drain along driveway 1st

finish

Driveway before Townhouse E• Underground services

Driveway before Townhouse E• Driveway casting and gas trench• Continue excation

Driveway before Townhouse E• Flower arbor hoisting

Some Advices• External structure excavate from deepest 1st,• Don’t forget Unground services. Careful about Power cable.• As Maincon, must understand different department. • If possible, develop a real time as-built drawing, for coordination. • Drainage is first to consider. Road follow drainage• Be aware of storm water during construction

很惭愧，做了一些微小的工作，谢谢大家！