View
215
Download
0
Category
Preview:
Citation preview
7/25/2019 Kuliah 2 - Physical Characteristic and Conditions of Earthmoving
1/9
Physical haracteristic and
onditions of Earthmoving
Rini Novrianti Sutardjo Tui
7/25/2019 Kuliah 2 - Physical Characteristic and Conditions of Earthmoving
2/9
Material Classifications
Top soil Sand Sandy clay Clayey sand
Soft and EasyDigging
Wet and sticky clay Weathered rocks
Medium HardDigging
SlateCompacted materialsSedimentary rocksConglomerateBreccia
Hard Digging
Fresh igneous rocks Fresh metaphoric rocks
Very Hard Diggingand Fresh Rocks
7/25/2019 Kuliah 2 - Physical Characteristic and Conditions of Earthmoving
3/9
Material Influences towards Equipments
1
Determiningtypes of
equipments to beused and estimated orcapacity of
production.
3
Estimating working
ability ofequipments basedon materialcharacteristics.
2
Calculating the
volume of work.
7/25/2019 Kuliah 2 - Physical Characteristic and Conditions of Earthmoving
4/9
Physical Characteristics of Material
BearingCapacity
SwellingWeight
Form
Hardness
Physical
haracteristics
Concerning characteristics
7/25/2019 Kuliah 2 - Physical Characteristic and Conditions of Earthmoving
5/9
Material Swelling
Type of Material Swell Factor (%)
Sand 5
10Top Soil 10 25
Soil 20 45
Clay 30 60
Rock 50 60
BankBank condition is theoriginal condition of material and hasnot been disturbed. It is measured inBank Cubic Meter (BCM).
Loose
Loose conditionis materialcondition after being disturbed. It ismeasured in Loose Cubic Meter(LCM).
Compacted
Compacted condition ismaterial condition after being re-piledup followed by compacting activity. Itis measured in Compacted CubicMeter (CCM).
BCMswellBCMLCM %
7/25/2019 Kuliah 2 - Physical Characteristic and Conditions of Earthmoving
6/9
Swell and Shrinkage Factors
Swell Factor Shrinkage Factor
Load Factor
%100
L
LBSw %100
C
BCSh
vL
vB
B
LLF vLLFvB
7/25/2019 Kuliah 2 - Physical Characteristic and Conditions of Earthmoving
7/9
Bearing Capacity of Material
GroundPressure
BearingCapacity
7/25/2019 Kuliah 2 - Physical Characteristic and Conditions of Earthmoving
8/9
Work Conditions
Accessibility and
transportation
Vegetation
Kind of material and itschange of volume
Climate
Altitude
Time element
Haul roadcondition
Operatingefficiency
Finishingspecifications
Fill specification
Production costs
7/25/2019 Kuliah 2 - Physical Characteristic and Conditions of Earthmoving
9/9
Recommended