View
222
Download
0
Category
Preview:
Citation preview
8/8/2019 MCM 115 Site Inspections
1/25
MCM 115: C ONSTRUCTION M ETHODS AND T ECHNOLOGY
By
N. Ramesh Babu Associate Professor
8/8/2019 MCM 115 Site Inspections
2/25
S ITE I NSPECTIONS
8/8/2019 MCM 115 Site Inspections
3/25
A CCESS (O FF S ITE )
Width or weight restrictions, which may affectplant choice, on existing roads.
Are any bridges nearly subject to height orweight restrictions?Will additional access over private land beneeded as well as that specified?If road construction is inadequate for the traffic
envisaged, will the local authority allow use if thecontractor pays for reinstatement at the end of the contract?
8/8/2019 MCM 115 Site Inspections
4/25
A CCESS (O N S ITE )
O verhead: Power Lines, Telephone Cables, Treesetc.,Ground Level: Surface level drainage pipes, on ornear surface distribution mains in industrialplants and areas of natural features to beprotected.Underground: Drainage, sewers, cables and
water and gas mains. In addition old basementsand foundations.Buildings and Trees:Water Courses: Extent and impact on new works.
8/8/2019 MCM 115 Site Inspections
5/25
B OUNDARY CONDITIONS
What adjacent buildings and trees are there? Estimates of heightsneeded for comparison with heights needed by tower crane, if required to swing outside the site boundary.Relationship of new works to boundary. How much room will there bebetween new construction and the site boundary? This information isessential in determining room for plant movement and scaffolding.
Safety of the public. Will pavement gantries be required to allow safepedestrian access under any external scaffolding.
Adjacent public areas. Are there schools, playgrounds or parksadjoining the site? Will they be within the range of possible fallingobjects.
Adjacent water courses. Are adjacent rivers or streams likely to havean impact on excavation on site?
Airfields. Any adjacent airfields may affect plant location andselection.Right of access for others.
Adjacent mains and sewers. What risk may arise from deepexcavations or other activities within the site to mains etc., outsidethe site?
8/8/2019 MCM 115 Site Inspections
6/25
N OISE
Noise is today is a pollutant and is covered bylegislation. Maximum permitted noise levels arelaid down by the local authority . Any restrictionson night work should also be checked.
8/8/2019 MCM 115 Site Inspections
7/25
V ISUAL SURFACE GROUNDCONDITIONS AND LOCALGEOLOGICAL FEATURES
A visual inspection of the site can often provideuseful information to the construction planner. If the site inspection is done in dry weather, a falseimpression can arise. What seems a dry site maybecome a wet boggy one in the winter. Localgeological features can also be helpful.
8/8/2019 MCM 115 Site Inspections
8/25
L OCAL WORKING WEEK ANDL OCAL H OLIDAYS
Such knowledge is essential to the constructionmethod planner, in the assessment of performance and time.
8/8/2019 MCM 115 Site Inspections
9/25
L OCAL W EATHER C ONDITIONS
Adequate knowledge of local weather conditionsis important to the construction method planner
in making allowance in performance for delaysdue to the weather.
8/8/2019 MCM 115 Site Inspections
10/25
T YPES OF S ITES
O pen FieldLong and ThinRestricted
8/8/2019 MCM 115 Site Inspections
11/25
8/8/2019 MCM 115 Site Inspections
12/25
T EMPORARY W ORKS
Site Establishment
Excavation-oversiteand regrading
Access Needs
Foundations,
Superstructure
External Cladding
Internal Services
Roof Cladding
Temporary offices, stores, hoardings, welfare facilities,
temporary servicesTemporary drainage , support to adjoining property,
access for vehicle
Temporary roads, bridges, drainage, protection HTcables
Support of excavations, foundations for plant,formwork to bases, pile caps
Formwork, scaffolding, anchors for cranes and hoiststo building.
Scaffolding, cradles
Scaffold, Mobiles or Working Platforms
Scaffolding and Edge Protection
8/8/2019 MCM 115 Site Inspections
13/25
P REPARATORY F ACILITIES FOR P ROJECT
Starting the job Access to jobConstruction camp
Service Plant
8/8/2019 MCM 115 Site Inspections
14/25
S TARTING THE J OB
The job should neither be started too early nortoo late. It should be started when enoughoperations are lined up and definite commitmentsare made for arrival of material and equipment.For example dont let happen that labour hascome but material is not there or material arrivesbut starting facilities are lacking.
8/8/2019 MCM 115 Site Inspections
15/25
A CCESS TO J OB
The most economical and practical system for
access to the job must be worked out. This mayinvolve finding the economics of railways orhighways.
8/8/2019 MCM 115 Site Inspections
16/25
C ONSTRUCTION C AMP
The size and type of construction camp depends
upon the following factors:1) The type of work.
2) Amount of work involved and
3) The duration of construction
8/8/2019 MCM 115 Site Inspections
17/25
8/8/2019 MCM 115 Site Inspections
18/25
F ACILITIES FOR A C AMPPermanent houses
Temporary housesDormitories for gents
Dormitories for ladies
Staff houses
Dining hall and kitchen
Guest house
Community hall
Schools
TempleO ffice
Hospital
Stores
Shops
Garages, repair shop, petrol station etc.,
Facilities like water supply, electric supply, telephones etc.,
Sanitary facilities
8/8/2019 MCM 115 Site Inspections
19/25
S ER V
ICE P LANT
The shop and plant layout deserve a great deal of study in determining the most effective layout. Itrequires co-ordinating the flow of material,equipment and labour from outside to the plantand construction site. A straight line sequence of operations should be achieved.
8/8/2019 MCM 115 Site Inspections
20/25
F ACILITIES FOR A S ER V ICE P LANTMain office
Time officeField engineers office
Employment office
First aid building
Testing laboratories
Warehouses
Machine repair shop
Air compressor house
Garages
Various shops: Carpenters shop, Electricians shop, Cable shop for placing cables,Drill sharpening shops.
Reinforcing steel yard
Storage yardDocks for receiving terminals of all shipments
Power plant
Power magazines for storing explosives.O il gasoline storage
Pump houseO ther utilities: Power supply, Job lighting and water supply.
8/8/2019 MCM 115 Site Inspections
21/25
SITE PRELIMINARIES
8/8/2019 MCM 115 Site Inspections
22/25
C LEARING THE S ITET HE METHODS A V AILABLE ARE
Pushing out by means of a bulldozer.Digging out by means of a mechanical excavator.Pulling out by means of a chain or wire wrappedaround the tree and attached to a dozer, tractor,lorry or winch.Burning down of hedges and shrubs.Cutting down of trees or hedges partially or fully.
8/8/2019 MCM 115 Site Inspections
23/25
S ITE S ECURITYTHERE ARE THREE MAIN ASPECTS T O BE C O NSIDERED
Loss of goods and materials. VandalismInjury to children
8/8/2019 MCM 115 Site Inspections
24/25
W ELFARE A CCOMMODATION
ShelterSanitary Conveniences- O ne water closet for every 25 employees.
- O ne urinal for every 35 employees.Washing Facilities- O ne wash basin for every 25 employees.
8/8/2019 MCM 115 Site Inspections
25/25
T HANK YOU
Recommended