ct presentation 2

CONSTRUCTION TECHNOLOGY\ CHAI JIA ERN 0324653 \ NA YONG YI 0324458 \\ TEE WAN NEE 0325074 \

ISSUES TO BE TAKEN INTO CONSIDERATION

BEFORE CONSTRUCTION

ACCESSIBILITY TO SITE SERVICE

WATER TABLE SITE CLEARANCE

SITE INVESTIGATION

SUBSOILS

\ CHAI JIA ERN 0324653 \\ NA YONG YI 0324458 \\ TEE WAN NEE 0325074 \

TEMPORARY WORK

ACCESSIBILITY TO SITE- Consideration on how the

vehicles will enter and exit the site.

- Condition of road

- If no suitable accessibility, temporary road is needed.


- Knows the building around the construction site

- To reduce disturbance to the neighbors building ( noise )

- To guarantee the safety

SITE INVESTIGATE


SERVICES- Is there any underground

service ?- Electricity cables, water

pipes, sewers

- SOLUTION ;- Locate the pipes and

cables


WATER TABLE- The level below which the

ground is saturated with water- Ground water pressure equals

to atmospheric pressure

- IMPACT ON CONSTRUCTION OF A HIGH WATER TABLE ;

- Extra costs to increase trench support

- Presence of chemical such as acid can lead to damage of foundation and other materials used below the ground level


SUBSOIL- Determine whether the type of subsoil is suitable for the construction

SANDGRAVEL

HARD ROCK CLAYGravel : Ideal subsoil, strong and easily drained

Sand : Loose, subject to movement

Hard Rock : Good foundation, High excavation cost

Clay : Good bearing capacity, does not drain well


SITE CLEARANCE- Removing existing

structure on the construction site

- Removing shrubs and trees

- Remove soil to reduce level

Bulldozer : equipped with a blade used to push large quantities of materials

[Rear] : claw-like device (ripper) to loosen densely compacted materials

Stump Grinder : power equipment attachment that remove tree stumps

Rotating cutting disk that chips away wood


TEMPORARY WORKSPart of construction project that are needed to enable the permanent works to be built

• Site office• Site accommodation• Site toilet• Material storage• Security


Drag picture to placeholder or click icon to add

SECURITY- FENCE AND LOCK- LIGHTING- ALARMS & SECURITY

GUARDS- CCTV

FENCE & LOCK- Surrounded the whole

construction site- Offer a clear indication to

any outsiders that the area within is strictly off limits.

.LIGHTING

- Large, open and outdoor- Due to these sites seldom

have sufficient lighting - To prevent criminals from

being able to operate in shadow.

.

ALARMS & SECURITY GUARD

- Image can be recorded or monitored live

- On site or remotely

CCTV

- Install a silent alarm- 24-hour manned guarding

SCAFFOLDINGA temporary structure on the outside of the building, used by workers to climb up the building to work

Putlog Scaffold


Independent Scaffold Mobile Access Tower

TIMBERING Trenches in Firm Soil

Trenches in Bad Soil Trenches in Loose Soil - When ground is so bad that it will not stand to a

vertical surface when poling board is inserted- Should the looseness of the soil supports being

fixed at closer intervals than 6 feet. - Timbering a trench in firm ground, in which case

short deal and batten “ends”.

- Temporary supports to sides of excavations.

- Planking & Strutting

https://www.youtube.com/watch?v=cFYkeT0Yk6k


Timbering of

trenches

STAY BRACING

VERTICAL SHEETING BOX

SHEETING

RUNNER SYSTEM

SHEET PILING


Thank you ! (:


ct presentation 2

Education