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NICMAR SODE MODULE 18
ASSIGNEMENT NO. ONE
NCP 24/25
COARSE TITLE: MATERIAL
AND EQUIPMENT
MANAGEMENTNAME :SHIRISH V.KSHIRSAGAR
REG.NO. 211-06-14-9564-2121
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In the site of a contract of developing and constructing a new International Airport
Items to be executed are
Cutting and Dozing
Transportation of Surplus earth
Bringing sand and spreading and leveling
Procurement of Bitumen
First to select excavator we need to know the types of excavator and functions.
Excavators are heavy construction equipment consisting of a boom ,stick, bucket and cab on rotating
platform (known as a house)The house sits atop an undercarriage with tracks or wheels. A cable
operated excavators uses winches and steel ropes to accomplish the movements. They are a natural
progression from steam shovels and often called power shovels .All movement and functions of a
hydraulic excavator are accomplished through the use of hydraulic fluid ,with Hydraulic cylinders and
Hydraulic motors. Due to linear actuation of hydraulic cylinders, their mode of operation is
fundamentally different from cableoperated excavators.
Excavators are also called a JCB (which is a proprietary name) or 360-degree excavators sometimes
abbreviated simply to 360.Tracked excavators are sometimes called trackhoesby analogy to the
backhoe.
Hydraulic excavator capabilities have expanded far beyond excavation tasks with buckets .With the
advent of hydraulic powered attachment such as breaker ,a grapple or an augur, the excavator is
frequently used in many application other than excavation. Many excavator feature a quick coupler for
simplified attachment mounting, increasing the machines utilization on the jobsite. Excavators are
usually employed together with loaders and bulldozers. Most wheeled .compact and some medium
sized (11 to 18 tonne)excavators have a backfill(or dozer) blade. This is a horizontal bulldozer-like blade
attached to the undercarriage and is used for leveling and pushing removed material back in to the
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place.
SHOVELS
Excavators where the digging action is an upward motion are called front shovels or just shovels. The
front shovel perform excavation by crowding the material away from the machine. They are mainly used
for digging above the track level and loading the material into hauling units. Thus they are suitable for
use in quarries for loading of blasted or short rocks. A typical modern shovel is depicted in the diagram
A front shovel has the capacity to develop high breaking force. This is required as the material being
excavated should be such that it will stand on its own almost at a vertical face. And normally such
material are rocky in nature. Usually the front shovel are mounted on track base and have a slow
traveling speed. The other basic parts of a shovel consist of the mount, cab, boom, stick and the bucket
as shown in the figure below. The size of a shovel is indicated by the weight and bucket size.
A front shovel has to be close to the material to be excavated before it begin excavating. When this is
achieved, the bucket is lowered to just above the track level with the bucket teethes pointing into the
material face. A crowding force is applied by hydraulic pressure to the stick cylinder and at the same
time the bucket cylinder rotates the bucket through the face.
The bucket will be fully filled if the height of the of the excavated material is right. If the material height
is too low a second pass will be required. Then once the bucket is full it just tipped over to load the
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material into hauling units. Finally the material left on the pit floor will be excavated after the upper
material is excavated.
Back Hoes Description and Uses
Initialy introduced in the United states as back-hoe.the hydraulic excavator is largely a European
development .Line production in the 200 to 240 ton class is currently available from 3 to 4
manufactureres .In the back hoe mode the hydraulic excavator can stand on top of a bench and load a
truck spotted on the bench below.Due to the small swing angle cycle time is short resulting in high
production.The life of hydraulic excavator is about 8 to 10 years.
Excavators where digging action is a downward arch motion are known as backhoes or hoes and
Even back shovels.Thus they are used to excavate below the ground surface or below the machine track
Level.Back hoes being mounted on crawler tracks can also be mounted on a wheel base.
Wheel mounted excavators are not specifically for bulk excavation but designed for mobility and general
purpose works. The John Deere excavators and JCB excavators are the most well known examples of the
wheeled based types. A typical modern back hoe and it's key components are depicted in the diagram
below.
Uses of back hoes
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These machines are suitable for excavating trenches, pits for basement and smaller machines can
handle general grading work. It is a versatile machine in that it can perform both excavation and lifting
works. Example in drainage works or utility works , the back hoe can perform the trench excavation and
handle the pipes or culverts. Thus this makes the need for a second lifting machine unnecessary.
During excavation the penetration force in to the material being excavated is achieved by the stick
cylinder and the bucket cylinder. The buckets can be selected depending on the type of material
excavated. For easily excavated material wide buckets are used. When excavating rocky material or
blasted rocks, a narrow bucket is used. In utility works, the width of the required trench is the deciding
factor in selecting the bucket.
Mini Excavator Description and Uses
Mini excavators are small, compact machines that range in size from under 2000 kg to 6000kg (4409lb to
13227lb) and with bucket sizes between 0.02m3 to 0.17m3 ( 0.026yd3 to 0.222yd3 ). Like their larger
cousins, these excavators also consists of a cab, a boom arm, a bucket and mounted on top of crawler or
wheeled base. Usually the machine is equipped with a backfill or bulldozer blade that attaches below
the boom. This make it easy to refill and level the material after digging works without having to change
attachments.
Despite their size, mini excavators are extreme versatile. Machines in this class typically have digging
depths from 6 to 8 feet and their relatively powerful hydraulic systems allow these machines to run a
host of attachments, including hammers and breakers for light demolition work. Further more with
retractable undercarriages, this allow them to contract to widths as small as 40 inches to get through
tight areas. Then when the machine is in position, the tracks are expanded out to their working width.
These traits, combined with their compactness, high maneuverability and easy transportation
characteristics make them suitable for working in restricted surroundings. Thus these machines are used
in utility, light demolition, home repair or renovation application. They however can also be used to
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complement bigger machines or even work in conjunction with them. As an example, a mini excavator
can be paired with a wheeled based front shovel. Such pairing can be applied to jobs like the
construction of a residential swimming pool. The mini excavator can dig while the skid-steer loader
removes the material and loads it into a dump truck.
Buldozers
Although not usually employed as a primary excavator the Buldozer has considerable application in
surface mining. The crawlermounted machine is more generally accepted and 70 Ton units are at
present in operation but because of its mobility the rubber-tired bulldozer is increasingly finding
application.For short hauls in severe conditions where scrapper operations would be difficult bulldozing
can usually be adopted.
Material Management
1) In modern management, Time plays a great role. Right decision at right time is the needof hour. All the decisions are based upon the past data or information and as such with
the change in technology and other developments, it is necessary that the decision be
based on the latest information, for which a sound data processing system is called for.
The materials manager who wishes to utilize a computer in the operation of his
department does not have to understand its electronic intricacies. He should, however,
know generally what a computer can do, what it cannot do and how his departmental
procedures must be designated so as to be compatible with computer operation.
Effective use of a computer offers a manager several significant advantages.
Computing ability to process huge volumes of data rapidly. Freeing the personnel from routine clerical work and repetitive tasks.
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Enable departmental personnel to do more creative work. Immediate availability of much more complete data for use in decision making.
The materials management activities which can be performed by computerized system
are the same in all cases. They are
Posting of inventory records. Computation of economic order quantities. Preparation of purchase requisitions. Preparation of purchase orders. Distribution of accounting charges. Automatic preparation of follow-up memos. Posting of delivery and quality records, by part and by vendor. Preparation of numerous operating reports for management. Auditing of invoices and preparation of cheque for payment of invoice.
INTEGRATED MANAGEMENT INFORMATION SYSTEM :
The system using computers can generate various types of information / reports depending on the
requirements. Following list gives a list of few reports used in materials department. The list is only
illustrative and not exhaustive.
Long-term production schedule. Short-term schedule. Materials manual.
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Requirement of non-stock items from user departments. Information regarding lead time, supply position (shortages), price trends, anticipated
price changes, etc.
Production Schedule handed over to production department. Materials requisition from the production to stores. Materials supplied from stores to production. To and fro information between stores and inspection. Information regarding receipts from the stores. Date regarding issues from stores. Due dates of supply from purchase department. Information to purchase department for follow up of supplies. Purchase requisition to purchase department. Purchase order. Materials from suppliers to stores. Previous years consumption data.
OPERATIONAL AND EXCEPTIONAL REPORTS :
The following operational / exceptional can be obtained from the computer. Here again the list is not
exhaustive.
Bill of materials Price forecasts Purchase budge
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ABC Analysis Inventory levels Items below safety stock levels Movement analysis Materials accounting and summary of issues Stock verification Vendor rating Sector-wise and material category-wise purchase list Outstanding payments
It is possible to get the following exceptional reports for managerial purpose.
Items for which consumption is morel than the norms Items for which there is a supply shortage and anticipated price increase Items with stock level above maximum norms Obsolete items
Computerization can be of great help to meet the following objectives of materials
management.
Accurate and speedy remittance of information to customers and suppliers, bills,statements, reminders, etc.
Information for management for control purposes e.g. stock levels, inventory position,customers acceptance etc., etc.,
Improvement of customer relations, vendor and employee relations, by timely accurateand relevant information and thro vendor analysis etc.
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Reduction of inventories to free the working capital. To increase profits at the same time giving better service by optimum scheduling,
forecasting and optimizing utilization of traffic facilities, warehouses, machines, etc.
To increase the productivity of materials and facilities.2)Lead time is the period between a customer's order and delivery of the final product. A small
order of a pre-existing item may only have a few hours lead time, but a larger order of custom-
made parts may have a lead time of weeks, months or even longer. It all depends on a number
of factors, from the time it takes to create the machinery to the speed of the delivery system.
Lead time may change according to seasons or holidays or overall demand for the product.
Manufacturers are always looking for ways to improve the lead time on their products. Lead
time can mean the difference between making the sale and watching a competitor sign the
contract. If a company can deliver the product weeks ahead of the competition, it stands a
better chance of receiving future orders. Because of this, management and labor teams
routinely hold meetings to discuss lead time improvements.
For a real world example of lead time in action, let's order a pizza. When you as the hungry
customer decide on a preferred local pizza restaurant, you may have already considered such
factors as speed and consistency. The selected restaurant must first receive your custom order,
based on their pre-stocked ingredients. Once you've placed your order, the restaurant may tell
you to expect the finished pizza in 45 minutes to an hour. This would be considered lead time.
The restaurant bases this time on several factors: the time it takes to prepare the pizza, the
cooking time, the availability of delivery drivers and the distance to your home.
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As the potential customer, you could still change your mind and place an order with a different
restaurant known for its speedy delivery times. The same style of pizza may arrive in 30
minutes. It's an identical product, but the lead time is different. This other restaurant may use
prepackaged pizzas or hire more delivery drivers. There may be some limitations on delivery
areas, however, or the pizza may not be cooked well. Sometimes a shorter lead time is no
guarantee of overall quality. Lead times may also change according to the day of the week --
demand may be higher on weekend nights, for example, creating a longer lead time.
This is the challenge many companies face when attempting to improve lead time on a product
line. Some processes simply take more time to create a high quality product. A custom order
may require months of preparation before the factory is capable of mass production. It can be
challenging to offer a competitive lead time to the customer while still maintaining quality
control over production. Companies must remain realistic with their lead time estimates, but
constantly strive to improve their manufacturing process and reduce lead times.
3)Inventory control is concerned with minimizing the total cost of inventory. In the U.K. the
term often used is stock control. The three main factors in inventory control decision making
process are:
The cost of holding the stock (e.g., based on the interest rate). The cost of placing an order (e.g., for row material stocks) or the set-up cost of production. The cost of shortage, i.e., what is lost if the stock is insufficient to meet all demand.
The third element is the most difficult to measure and is often handled by establishing a "service level"
policy, e. g, certain percentage of demand will be met from stock without delay. The ABC classification
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system is to grouping items according to annual sales volume, in an attempt to identify the small
number of items that will account for most of the sales volume and that are the most important ones to
control for effective inventory
ABC analysis categories-
There are no fixed threshold for each class, different proportion can be applied based on
objective and criteria. ABC Analysis is similar to the Pareto principle in that the 'A' items will
typically account for a large proportion of the overall value but a small percentage of number of
items. Example of ABC class are:
A items 20% of the items accounts for 70% of the annual consumption value of the items. B items - 30% of the items accounts for 25% of the annual consumption value of the items. C items - 50% of the items accounts for 5% of the annual consumption value of the items.
Another recommended breakdown of ABC classes-:
1. "A" approximately 10% of items or 66.6% of value2. "B" approximately 20% of items or 23.3% of value3. "C" approximately 70% of items or 10.1% of value
ABC Analysis in ERP package
Major ERP packages (SAP, Oracle, etc.) have built in function of ABC analysis. User can execute
ABC analysis based on user defined criteria and system apply ABC code to items (parts). See
detail at external link.
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Example of the Application of Weighed Operation based on ABC class
Actual distribution of ABC class in the electronics manufacturing company with 4051 active
parts.
Distribution of ABC class-
ABC Class No. of Items Total Amount Required
A 5 % 15 %
B 10 % 15 %
C 85 % 10 %
TOTAL 100 %100
Using this distribution of ABC class and change total number of the parts to 4000.
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Uniform Purchase:-When you apply equal purchasing policy to all 4000 components, example weekly
delivery and re-order point (safety stock) of 2 week supply assuming that there are no lot size constraints,
the factory will have 16000 delivery in 4 weeks and average inventory will be 2.5 week supply.
Application of Weighed Purchasing condition-
Uniform Condition Weighed Condition
Items Conditions Items Conditions
All Items 4000
Re-order point=2 weeksupply
Delivery
frequency=weekly
A-class items200Re-order point=1 week
supply
Delivery
frequency=weekly
B-class items 400
Re-order point=2 weeksupply
Delivery frequency=bi-
weekly
C-class items 3400
Re-order point=3 week
supply
Delivery
frequency=every 4
weeks
Weighed Purchase
In comparison, when weighed purchasing policy applied based on ABC class, example C class monthly
(every 4 week) delivery with re-order point of 3 week supply, B class Bi-weekly delivery with re-order
point of 2 weeks supply, A class weekly delivery with re-order point of 1 week supply, total number of
delivery in 4 weeks will be (A 200 x 4=800) + (B 400 x 2=800) + (C 3400 x 1=3400)=5000 and average
inventory will be (A 75% x 1.5weeks) + (B 15% x 3weeks) + (C 10% x 3.5weeks)=1.925 week supply.
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Comparison of "Equal" and "Weighed" Purchase (4 weeks span)-
ABC
class
No of
items
% of
total
value
Equal purchase Weighed purchase
NoteNo of
delivery
in 4
weeks
average
supply
level
No of
delivery
in 4
weeks
average
supply
level
A 200 75% 800 2.5
WEEKS
800 1.5
WEEKSSame delivery frequency,
safety stock reduced from 2.5
to 1.5 weeks, require tighter
control with more
manhours.
B 400 15% 1600 2.5
WEEKS
800 3 WEEKS Increased safety stock level
by 20%, delivery frequency
reduced to half. Less
manhour required.
C 3400 10% 13600 2.5
WEEKS
3400 3.5
WEEKSIncreased safety stock from
2.5 to 3.5 week supply,
delivery frequency is one
quarter. Drastically reduced
manhour requirement.
TOTA
L
4000 100% 16000 2.5
WEEKS
5000 1.925
WEEKSAverage inventory value
reduced by 23%, delivery
frequency reduced by 69%.
Overall reduction of
manhour requirement
A class item can be applied much tighter control like JIT daily delivery. If daily delivery with one day
stock is applied, delivery frequency will be 4000 and average inventory level of A class item will be 1.5
days supply and total inventory level will be 1.025 week supply. reduction of inventory by 59%. Total
delivery frequency also reduced to half from 16000 to 8200.
Result-By applying weighed control based on ABC classification, required man-hours and inventory level
are drastically reduced.
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6)The new age mantras of any business today are the customer knows best and the
customer is always right. Businesses have grown and fallen because of the all important
customer. While the customer is king, and businesses are geared towards serving their
customers in every way possible, without a good supplier or supplier chain to sustain the
business, the customer base will fast disappear. Hence the key to running and managing a
business successfully means that you have a strong customer base and a stronger supplier base.
So how do you decide if a supplier is good and trustworthy? Before answering that, let us begin
with first understanding what defines a good supplier.
A good supplier is one who can meet all customer expectations, with respect to delivery time,
quality of goods and dependability.
Therefore it is logical to infer then that a good supplier is one who meets theses qualities.
However while the laws of commerce have remained relatively simple, the demands and
expectations of the customer keeps evolving. And hence the role of the supplier has changed as
well. Keeping in mind the expectations of the customer, the following list contains seven key
characteristics of a good supplier:
Timely delivery: A good supplier is someone who keeps up to timely delivery of goods and
supplies. Delayed supplies leads to business losses to the immediate customer and in turn
delayed delivery to the end customer. This also opens up avenues for other secondary systems
like buffer inventories to keep the chain going in addition to increasing overall costs.
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Constant frequency of delivery (daily basis): If a supplier can keep to supplying goods at
constant and smaller frequencies, then the cost advantage is supplemented. Meaning, if a
product or part is found to be defective, then the time spent in replacing it is minimal as
opposed to having to replace a whole carton or shipment of that item since the delivery is
frequent and the supply chain is actively functioning. This is not only cost effective but is also a
time and space saver.
Reasonable price: Business owners and suppliers add the cost of purchasing materials for a
product into its retail price making it costlier. A reduction in this cost will lead to a reduction in
the cost of the product as well.
Minimal paper work: From the placing of an order to the actual buying of an order involves a
ton of paper work. A good supplier will find ways of reducing the amount of paper work
involved.
Quick response/ turn around time: The world of business is highly unstable, and often the gap
between demand and supply can be hard to predict. A good supplier will always be prepared to
meet such a contingency. Again a frequent and smaller quantity of supplies is the key to
eliminating this gap.
Inspection of goods: Inspection of goods is a time consuming activity for both the supplier and
the buyer. However quality assurance of the goods can again reduce the time spent on
inspecting the goods.
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Taking care of wear and tear and transport damage: Transportation and delivery often
involves a lot of wear and tear and a good supplier is someone who recognizes these limitations
and takes proactive steps to help reduce or avoid the damage involved. The importance of a
good supplier cannot be undermined and it can be said then that a business is as good as its
suppliers.
EXECUTION
As per the requirement here it is recommended to use Hydraulic crawler mounted excavator i.e Poclain
and JCB (Hydraulic tractor mounted excavator)
1.Cutting and dozing
For cutting and dozing following equipments are to be used
The production of an excavation is a function of the digging cycle which can be divided in to the
following segments
1. Time required to load the bucket2. Time required to swing the bucket3. Time to dump the bucket4. Time to swing with an empty bucket
For excavation there will be three options
1. Bulldozer2. Hydraulic excavator with crawler mounted3. Hydraulic excavator with Tyre mounted
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As Cutting and dozing of earth is to be done for 0.75 m so it is advisable to take hydraulic excavator with
crawler mounting and for leveling Tractor mounted crawler is to be used.
For excavation of 100000 Cum Hydralic excavator Volvo BL70 OR EC 160 Cof 0.7Cum capacity bucket
will be required
Output of excavator
1. Excavation time 10 Sec
2. Time required to load the bucket 20 sec3. Time required to swing the bucket 10 sec4. Time to dump the bucket 10 sec5. Time to swing with an empty bucket 10 sec
---------------------------------------------------------------------
Total time required 60 Sec
In 60 Sec 0.7 Cum excavation will be done
In One Hour
Excavator working will be done up to 12 hours
In 12 Hours with One excavator 60 Cum x 12 Hours = 720 Cum
No. of Excavator required to complete the work in 30 days
Considering 5 days breakdown period
Say 4 Nos.
No. of excavator required :4Nos.
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Dumpers (Trucks)Required:
Capacity of One dumper : 5 cum
Travel time required for dumper : 5 minutes one way
Unloading time : 2 Minutes
Total time required for one dumper : 12 Minutes
Per hour output of one dumper : 25 Cum
In 12 Hours dumper can transport material ` : 300 Cum
No.of Dumpers required for one hydraulic excavator :2.4 Nos.
Considering breakdown period total dumpers required : 3 Nos.
1.Per Cum rate of Excavation
Even though the excavator is owned by company who is doing the work but for rate calculation
purpose market rent is to be considered
Rent of excavator : Rs. 1500 per hour
For Dumper : Rs. 6000 Per day
So per day expences
A)Crawler mounted excavator for 12 hours : Rs. 1500 x 12 hours
(Hydraulic ) :Rs. 18000.00
B)Dumpers(Trucks) per day charges : Rs.6000.00
For three dumpers :3 x 6000.00
:Rs.18000.00
Total A + B + C :Rs.36000.00
Per Cum rate
Overheads 5% 2.50
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Profit 20% 10.50
Total (1) Rs. 63 Per Cum
2.Earth leveling work 80000 Cum with consolidation and compaction
For leveling work Tractor mounted hydraulic excavator two nos.will be required
JCB (Tractor mounted hydraulic excavator) will work for 12 hours
JCB (Tractor mounted hydraulic excavator) charges
Per hour charges : Rs. 700/-
For 12 hours : 12 x 700/-
For one JCB per day rent will be : 8400/-
(Tractor mounted hydraulic excavator)
For two Tractor mounted hydraulic excavator :16800/-
So per Cum Cost :
Overheads 5% :1.11
Profit 20% :4.44
Total Cost of Filling(2) :27.77
3.Transportation of Surplus earth
For shifting surplus earth of 20000 Cum two dumpers will be required
Time required for dumper for one trip : 25 Minutes
Of 3 km
Loading and unloading : 5 Minutes
So 20 minutes will be required for dumper to dispose off 5 cum soil
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In one hour 15 cum soil will be disposed off
In 12 hours dumper can dispose off 180 cum soil
No.of dumpers required to complete the job in 15 days :
For leveling of disposed material one JCB will be required to work for 15 days
A)So total no.of dumpers required will be 8 nos.
Per day rent of one dumper : 6000 Rs.
Total working days : 8 Dumpers x 15 days
: 120 Nos.
Total rent : 120 x 6000/-
: 7,20,000/-
B)Per hour rent of JCB : Rs. 700 per hour
For 12 hours : 8400/-
For 15 days : 15 days x 8400/-
Total rent of JCB for 15 days :126000.00
Per Cum rate A+B :720000+126000
Rs. :846000.00
Per Cum cost Rs.
Add overheads 5% 2.115
Profit 20% 8.88
Rate per Cum(3) Rs.53.29
4.Bringing sand and spreading and leveling
For loading of sand one JCB will be required
Transporation will be done with the help of dumper
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Loading time for dumper with JCB 90 sec.
Within one hour total sand loading will be done : 40 Cum
JCB will work for 8 hours in 8 hours :320 cum
Sand loading can be done
Dumper travel time for 20 km :60 minutes
To utilize JCB 100% Total no.of dumpers to be required : 8 Nos
For spreading one JCB will be required for four days and 20 labours will be required for week
period for even spreading .
Cost
A)JCB loads sand of 320 cum in one day
For 3000 Cum sand total no.of days of JCB required will be 3000/320 =9.375 say 10 days
JCB rent 700 Rs per hour
For 8 hours 700 x8 hours i.e for one day : Rs. 5600 /-
For 10 days :Rs. 5600 x10 days. =Rs.56000/-
B)For dumpers per day rent will be 6000 Rs. Per day
Total 8 Dumpers will be required for 10 days
So total hire charges amount : 10 days x 6000/-
: 60000/-
C) For leveling one JCB is required for four days working time for JCB per day will be 8 hours
Per hour charges 700 Rs.
Total working hours will be 4 Days x 8 hours :32 hours
Total hire charges :32 hours x 700
:Rs. 22400/-
D) Labours required for sand spreading :20 Nos. for week period
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Total no. of labours for week period will be 7 x 20 No.s : 140 Nos.
Wages of labour per day :Rs. 250 per day
So total amount will be :250 x140 Nos.
Total amount :Rs. 35000.00
E)Royalti Charges of sand :1000 Rs. Per Brass
So per cum will be : 1000/2.83
:Rs.353.35
:Say Rs. 354/-
For 3000 cum royalty charges will be Rs. 10,62,000/-
Total cost of bringing sand and spreading and leveling is
A+B+C+D+E :Rs. =1235400/-
Per Cum cost will be :Rs. 411.80
Overhead 5% :Rs 20.59
Profit 20% :Rs. 86.47
Total cost per cum (4) :Rs. 518.86
5.Procurement of 150000 Ltrs of Bitumen
Lead time upto site is 45 days
Storage facility at site is 50000 Ltrs.
Considering Start date from 1
Bitumen will be transported in Bozar (Bitumen tanker) of capacity 10000 Liters order of bitumen
will be placed at the start of work i.e on 5th
day alongwith advance
Bitumen tranporation will be started on 10 th day with the help of five Bozars of 10000 Liters
capacity
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So after 45 days of transportation start day i.e.55 th day Bitumen of 50000 Ltr will be delivered
at site.With the help of this bitumen work will be started from 60 th day.
Bitumen will be consumed at the rate of 5000 Litres per day.With this our 50000 Litres Bitumen
will be consumed in 10 days i.e on 70 th day .
Next lot of Bitumen will be required on 68 th day.
So Bitumen transportation will be started on 23 rd day
On 23 rd day 10000 Liters
On 24 rd day 10000 Liters
On 25 rd day 10000 Liters
On 26 rd day 10000 Liters
On 27 th day 10000 Liters
These will reach at site on
On 68 th day 10000 Liters
On 69 th day 10000 Liters
On 70 th day 10000 Liters
On 71st day 10000 Liters
On 72nd day 10000 Liters
This Bitumen will again get consumed from 71st
day to 80 th day
Third lot of Bitumen will be needed to reach at site by 78th day for this transportation is to be
started on 33 th day
On 33rd day 10000 Liters
On 34th day 10000 Liters
On 35 th day 10000 Liters
On 36st day 10000 Liters
On 37nd day 10000 Liters
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After 45 days lead time this Bitumen will reach at site.It is as per below
On 78th day 10000 Liters
On 79th day 10000 Liters
On 80th day 10000 Liters
On 81st day 10000 Liters
On 82nd day 10000 Liters
Cost of Bitumen
Bitumen will be of 70 grade Per Litre cost 55 Rs. Per Litre
Cost of Bitumen 150000 x 55/- = 82,50,000/-
TOTAL ESTIMATE BASED ON THE ABOVE
SR PARTICULARS QUANTITY UNIT RATE AMOUNT IN
Rs.
01 Cutting and Dozing Earth 100000 Cum 63.00 6300000
02 Filling of Earth in landing strip 80000 Cum 27.77 2221600
03 Transportation of surplus earth
from site to dumping place (3
Km. lead) including spreading.
20000 Cum 53.29 1065800
04 Purchase and transportation of
Sand
3000 Cum 518.86 1556580
05 Purchase of Bitumen 150000 Liter 55.00 8250000
TOTAL AMOUNT 19393980
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Bibliography.
Types of Excavators and its functions
Material management
ABC analysis
Cutting and dozing with the help of excavators
Transportation with the help of Truck
Sand purchasing
Procurement of Bitumen.
Books Read
Product catalogue and literature of Volvo manufacturer
Construction planning and equipment and methods by Peurifoy.
NICMAR Construction equipment planning.
NICMAR Material planning