Earthworks of Engineering Faculty

Parking Area

Presented by: 4th group

Introductions

Nowadays, Parking Area has become one of infrastructures needed along increasingly of vehicles volume especially at Engineering Faculty. Problems arising from the provision of parking space itself is vacant land needed. Vacant land located in the north of 4th Building requires an efficient construction methods that can be implemented practically

Work Plan

Step 1

• Identification

Step 2

• Working Method Selection

Step 3

• Heavy Equipment Analysis

Step 4

• Cost Plan Analysis

Step 5

• Scheduling

Step 6

• Working Simulation

Route for Trucks

Start

Finish

Identification

Identification

The following are main working items:

• Land clearing and top soil strippingThe purpose is for clearing the area from organics, therefore it will ready for next work.

• Soil heap workThis work is done by collecting soil from the excavation to be made as a pile of soil on the surface of the ground that has lower elevation than planned.

Identification

• Total Volume = Area x Depth

= 610,13 x 1,65

= 1006,715 m3

• Stripping Volume = Area x Stripping Depth

= 610,13 x 0,15

= 91,5195 m3

• Digging Volume = Total Volume – Stripping Volume

= 1006,715 – 91,5195

= 915,195 m3

Working Method Selection

Working Method

• Land clearing and top soil strippingUsing the excavator as the primary heavy equipment which is used for stripping and digging. The main idea is to use heavy equipment as little as possible, but efficient.

• Soil heap workLM that are transported by trucks to hauling site will condense by the compactor. The results are expected not to exceed a schedule of excavator.

Heavy Equipment

Heavy Equipment Analysis

•Excavator

•Truck

•Compactor

Excavator

Productivity of Backhoe Komatsu PC60-1

• Cycle time (T) = 0,4 • Bucket Capacity (BC) Stripping = 0,25• Bucket Capacity (BC) Digging = 0,28 • Siteplan Management Condition= 0,75 (clay)• Bucket Factor (BF) Stripping = 0,5 • Bucket Factor (BF) Digging = 0,8

• Productivity of Stripping60/T×BC×JM×BF = 60/0,4×0,25×0,75×0,5 = 14 m3/hour

• Productivity of Digging60/T×BC×JM×BF = 60/0,4×0,28×0,75×0,8 = 25,2 m3/hour

Truck

Truck Productivity

• Distance = 500 m• Average Speed = 20 km/hour• Capacity = 5 m3

• Cycle Time• Loading = 11,9 minutes• Single Trip Time = 3 minutes• Position Setting = 5 minutes +

19,9 minutes

Amount trip/hour = 60/15,9

= 3,01 ≈ 3 trip

Compactor

Productivity of Compactor Vibro 10 ton

• Effective Width of Wheel (L) = 80 cm• Compactor Speed (V) = 2 km/hour • Total Tracks of Compacting (N) = 10• Layer Heights = 20 cm• Productivity

F= (L×V×JM)/N=(0,8×2000×0,75)/10= 120 m2/layer/hourCompactor Productivity = 0,2×120 = 24 m2/hour

No. Work Equipment Volume (m3)

Productivity(m3/hour)

Number of Equipment

Time (hour(s))

1 StrippingBackhoe Komatsu

PC 60-191,5195 14 1 6,5

2 DiggingBackhoe Komatsu

PC 60-1915,195

25,21 37

3 Loading Truck 1143,994 15 2 77

4 Compacting Vibro 10 ton 823,6755 24 1 35

Equipment Demand

Cost

No. Work Equipment Number of Equipment

Time of Rent

(hour(s))

Rent Cost(all in)(Rp)

Total Cost(Rp)

1 StrippingBackhoe Komatsu PC 60-1

1 7 190.000 1.330.000

2 DiggingBackhoe Komatsu PC 60-1

1 37 190.000 7.030.000

3 Loading Truck 2 77 50.000 7.700.000

4 CompactingVibro 10

ton 1 35 240.000 8.400.000

TOTAL 24.460.000

No. Work RatioTime

(day(s)) 1 2 3 4 5 6 7

1 Stripping 0,055 1

2 Digging 0,287 6

3 Loading 0,315 6

4 Compacting 0,343 5

TOTAL 1 7

Barchart and S-Curve

Working Simulation

Mob Demob

Stripping

Digging

Loading+

Loading

Compacting +

Total Cost

No. WorkEquipme

nt

Number of

Equipment

Cost(Rp)

Mob deMob

(Rp)

Total Cost (Rp)

1 StrippingBackhoe Komatsu PC 60-1

1 1.330.000 1.500.000 2.830.000

2 DiggingBackhoe Komatsu PC 60-1

1 7.030.000 - 7.030.000

3 Loading Truck 2 7.700.000 - 7.700.000

4Compactin

gVibro 10

ton 1 8.400.000 1.500.000 9.900.000

10 % of Total Cost 2.746.000

TOTAL 30.206.000

THANKS FOR YOUR ATTENTION