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STRIP TOPSOIL FROM THE SITE FIRST THING TO DO IS A DOZER PROBLEM STEP 1: IDEAL CAPACITY OF DOZER: SEE PROJECT HANDOUT STEP 2: MATERIAL CORRECTION: LOOSE DENSITY OF TOPSOIL - GIVEN IN THE PROJ. HANDOUT STEP 3: FIGURE YOUR OPERATOR IS AVE STEP 4 SOIL CORRECTION OUR SOIL TYPE IN THE PRZOJ HANDOUT DOZING TECHNIQUE: YOU CHOOSE STEP 5. STEP 6 CONDITIONS ARE GOOD STEP 7: EFFICIENCY SEE PROJECT HANDOUT STEP 8: GRADE ADJUSTMENT LOOK AT YOUR OVERALL SITE SKETCH. LET'S USE 3% GRADE, You DETERMINE IF YOU ARE DOZING UP HILL OR DOWN HILL TO YOUR STOCK PILE AREAS STEP 9 JUST LIKE THE HOME WORK STEP ID: JUST LIKE THE HOMEWORK STEP 11 = COMPUTE SWELL FACTOR - SEE PROJECT HAND OUT FOR SOIL DENSITIES DETERMINE YOUR DOZER CAPACITY IN BCY/HR NOW > IF YOU HAVE TO MOVE 4000 BEY OF TOP SOIL, HOW LONG WILL IT TAKE (IN HOURS) ? SO THIS IS HOW LONG IT WILL TAKE ONE DOZER. LET'S SET UP A CREW AND SEE WHAT IT COSTS. (CREW REQ'TS ARE IN THE PROJECT HANDOUT) Hes $. perta 1 D7 DOZER @ 1 SUPERVISOR 1 LABORER C 425 × $ H25 x $ pertte per+2= 1 DOZER MOVE TOTAL = THIS IS WHAT IT WOULD COST FOR 1 DOZER TO TO MOVE ALL THE TOPSOIL ALL BY HIMSELF
SO: WHAT WOULD HAPPEN IF YOU ADDED MORE DOZERS? FOR EXAMPLE, LET'S SAY IT TAKES I DOZER 48 HRS WORK TO DO THE JOB. OF IF YOU HAVE 2 IT WOULD ONLY TAKE 24 HRS TOTAL IF YOU HAVE 3 IT WOULD ONLY TAKE 16 ARS TOTAL 4 12 HRS TOTAL IF YOU HAVE TO PAY $500 FOREACH MOVE BUT REDUCE THE HOURS OF YOUR SUPERVISOR AND LACORER, WHICH COMBO IS BEST? MOVE THE CUT MATERIAL ON SITE YOU ALREADY KNOW YOUR DOZER CAPACITY. YOU ARE MOVING 500 bay of CUT HOW LONG WILL IT TAKE? YOUR CREW REQUIREMENTS FOR THIS, SHOW THAT YOU NEED A ROLLER OR ROLLERS DO A ROLLER CAPACITY PROBLEM LIKE THE CHAPTER 5 HOMEWORK PROBLEM AND DETERMINE HOW MANY ROLLERS YOU NEED SET UP YOUR CREW D7 DOZER (s) @ HRS * $ His x $ peritle= -per HR- ROLLER(S) C 1 SUPERVISOR @ 1 LABORER HRS X $ HRS = $ -potte= ·pe He= ROLLER MOVE (5) NOTE: YOU DON'T HAVE TO MOVE THE DOZERS. THEY'RE ALREADY THERE. TOTAL
THIS PART OF THE PROJECT CONSISTS OF PRODUCTION PLANNING AND ESTIMATING THE REQUIRED ELEMENTS ARE 1) EQUIPMENT SELECTION 2) PRODUCTION ESTIMATES BASED ON THOSE SELECTIONS 3) COST ESTIMATE BASED ON PRODUCTION 4) TOTAL DURATION OF PROJECT FINAL BID PRICES SPECIFICATIONS 1) OUR SITE HAS 500 bay or CUT AND NEEDS AU ADDITIONAL 7.500 bey of FILL WE NEED TO STRIP 4,000 bey of Topsoil 2) THE FILL IS IMPORTED TO THE SITE FROM A FARM 2.1 MILES DOWN THE PAVED ROAD (40 MPH SPEED LIMIT) OR ACCESSED VIA A TEMPORARY HAUL ROAD 3,600 FT LONG. THE HAUL ROAD BEGINS AT THE BACK OF OUR PROPERTY AND GOSS DOWN A 6% GRADE TO THE FARM, THE HAUL ROAD NEEDS TO BE MAINTAINED DAILY TO HOLD A AVELAGE ROLLING RESISTANCE OF BO LES/TON. 3) MATERIAL DENSITIES • TOPSOIL : 2450 LBS/Ley 1150 180/boy 3010 LEF/CCT- 3240 281/ bay • FILL SOIL = 2620 LBS / Ley (DRY, NON COHESIVE) • CRUSHED STONE : 3600 LBC/CCY AND COSTS $30.00/ CEY DELIVERED TO THE SITE. YOU CAN GRADE 500 COY/DRY COMPACTION REQUIRES TWO 6 INCH LIFTS AND & PASSES PER LIFT AT 4 MPH • ASPHALT 152 LBS/CUBIC FOOT. IT WILL BE INSTALLED BY A SOB CONTRACTOR FOR $97.00/TON AND • CONCRETE GUTTERS + COST $20.00/UNEAR FOOT AND WILL BE STALLED BY A SUS CONTRACTOR. THE GUTTERS TAKE 2 DAYS TO NOSTAL AND 3 DAYS TO CURE.
4) TRUCKS = OFF HIGHWAY TRUCKS CARRY 15 LET OVER THE ROAD TRUCKS CARRY 10 LEY AT 75% OF THE POSTED SPEED LIMIT. 5) EQUIPMENT > • EXCAVATOR/BACKHOE & LOADER ALL HAVE 3 CY BUCKETS • GRADER NEEDED FOR HAUL ROAD MAINT • EACH PIECE OF EQUIPMENT HAS A FIXED DELIVERY OF $500 • SOIL COMPACTION REQUIRES 6 INCU LIFTS; 6 PASSES/LIFT AT 4 MPH • REPLACING TOPSOIL DOES NOT REQUIRE COMPACTION AND USES TUS D3 DOZER •ALL EQUIPMENT RUNS AT A 50 MINUTE EFFICIENCY. OPERATING COSTS/H₂ OPERATOR WAGES (INCL. BENEFITS, ETC) • OVER THE ROAD TRUCKS : $60.00 $30.00 • D7 DOZER (IDEAL: 200 LCY/H₂) = $115.00 $35.00 • 3 CY EXCOVATOR OR LOADER : $125.00 $35.00 • 120H GRADER $60.00 $35.00 • OFF HIGHWLY TRUCKS : $75.00 $30.00 • 631E SCRAPERS : $155.00 $35.00 • 5 FT WIDE COMPACTORS * $75.00 $35.00 $ $ 70,00 $30-00 • D3 DOZER (FOL TOPSOIL REPLACEMENT) • SUPERVIS02 • LABORER $50.00 $25.00 NOTE NO OVER TIME WILL BE ALLOWED ON ≤ 4 HRS = 1/2 DAY THIS JOB = 8 4es FULL DAY FOR YOUR FINAL BID USE 25% OVERHEAD + PROFIT. WE WILL DIVIDE PROJECT PART & INTO 4 SECTIONS SECTION 1 SECTION 2 STRIP THE TOPSOIL AND MOVE THE CUT ON SITE BRING SOIL FROM THE FARM USING SCRAPERS SECTION 3 BRING SOIL FROM THE FARM USING AN EXCAVATOR OR LOADER AND CHECKING IF ON ROAD OR OFF ROAD TRUCKS ARE BETTER SECTION 4 PLACING AND GRADING CRUSHED STONE, CONCRETE AND ASPHALT SUBCONTRACTORS, REPLACE TOPSOIL SUBMIT FINAL BID. 6) COSTS :
CREW REQUIREMENTS STRIP TOPSOIL: D7 DOZER (S), SUPERVISOR, LABORER MOVE CUT 3 D7 DOZER (S), SUPERVISOR, LABORER, COMPACTOR. BRING SOIL FROM THE FARM: 4) SCRAPER (<), I D7 DOZER TO PUSH AT THE FARM, 1 GRADER TO MAINTAIN THE HAUL ROAD, COMPACTOR(3), SUPERVISOR, LABORER B) 1 EXCAVATOR (SELECT EITHER A BACKHOE OR LOADER), OFF ROAD TRUCKS, 1 GRADER FOR THE HAUL ROAD, 1DT DOZER ON THE JOBSITE, COMPACTOR(S), SUPERVISOR, LABORER c) I EXCAVATOR (SAME AS ABOVE), ON ROAD TRUCKS, 1 D7 DOZER ON THE JOBSITE, COMPACTOR(S), SUPERVISOR LABORER PLACE + GRADE STONE HOW MUCH STONE DO YOU NEED ? YOU CAN ONLY PLACE & GRADE 500 ccy / DAY. (Bhrs). 1 D7 DOZER, 1 GRADER, 1 COMPACTOR, SUPERVISOR, LABORER CONCRETE SUB: HOW MANY LINEAR FEET OF GUTTER DO YOU HAVE? THE SUBS TAKES 5 DAYS: 2 TO PLACE (YOUR SUPERVISOR NEEDS TO BE THERE) 3 DAYS TO CURE. ASPHALT SUB: HOW MANY TONS OF ASPHALT DO YOU HAVE? IT TAKES 2 DAYS (YOUR SUPERVISOR NEEDS TO BE THERE). REPLACE TOPSOIL (ONLY IN THE RO.w.). THIS WILL TAKE 4 HES WITH A LOADER, THE (D3) SMALL DOBER, SUPERVISOR + LABORER REMEMBER EVERY MOVE OF EQUIPMENT COSTS $500 FULL DAYS ARE 8 HRS. (NO OVERTIME OR SATURDAYS) 1/2 DAYS ARE ≤ 4 Hes