GIVEN D9N Dozer (Fig. 7.14) Move 2000 LCY Distance - 400 ft. (Fig. 7.14) Grade – 1% uphill (Table 7.2) Material - Loose stockpile (Table 7.2) • Operator Skills – Excellent (Table 7.2) Actual Time Working - 50 min/hr (Efficiency) • Operator Technique - slot dozing (Table 7.2) Visibility – N/A (Table 7.2) Material Weight- 2100 lb/CY (standard weight is 2300. Divide 2300 by material weight to get the factor) Transmission – Direct drive (Table 7.2) Dozer Blade - Straight blade D9N Book Efficiency (Fig. 7.14) X above factors Actual Efficiency Factors: grade x material weight x operator x type material x operator technique x visibility x efficiency x transmission x type blade
GIVEN D9N Dozer (Fig. 7.14) Move 2000 LCY Distance - 400 ft. (Fig. 7.14) Grade – 1% uphill (Table 7.2) Material - Loose stockpile (Table 7.2) • Operator Skills – Excellent (Table 7.2) Actual Time Working - 50 min/hr (Efficiency) • Operator Technique - slot dozing (Table 7.2) Visibility – N/A (Table 7.2) Material Weight- 2100 lb/CY (standard weight is 2300. Divide 2300 by material weight to get the factor) Transmission – Direct drive (Table 7.2) Dozer Blade - Straight blade D9N Book Efficiency (Fig. 7.14) X above factors Actual Efficiency Factors: grade x material weight x operator x type material x operator technique x visibility x efficiency x transmission x type blade
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Chapter 7
DOZER PRODUCTION EFFICIENCY
GIVEN
D9N Dozer (Fig. 7.14)
Move 2000 LCY
Distance - 400 ft. (Fig. 7.14)
Grade – 1% uphill (Table 7.2)
Material – Loose stockpile (Table 7.2)
• Operator Skills - Excellent (Table 7.2)
Actual Time Working - 50 min/hr (Efficiency)
Operator Technique - slot dozing (Table 7.2)
Visibility – N/A (Table 7.2)
Material Weight- 2100 lb/CY (standard weight is 2300. Divide 2300 by material
weight to get the factor)
Transmission - Direct drive (Table 7.2)
Dozer Blade - Straight blade
D9N Book Efficiency (Fig. 7.14) X above factors = Actual Efficiency
Factors: grade x material weight x operator x type material x operator technique x
visibility x efficiency x transmission x type blade
Efficiency x Factors = ActuaI Efficiency =
LCY/HR.
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