Amasaman Group Assignment Edited by Aheey

8/10/2019 Amasaman Group Assignment Edited by Aheey

1/14

1.0 INTRODUCTION

This report was compiled by the Amasaman group of the Construction Technology and

Management Level300 class of theKwame Nkrumah University of Science and Technology,

Institute of distance learning.

The group was tasked to visit a construction site and report on progress of work, ongoing

activities, future progress of work, construction site layout, hazards and adequacy of safety signs.

In view of that, we chosethe Achimota Retail Center, a shopping mall being developed along the

Achimota - Nsawam road by WBHO. The field work was done on 1st November 2014 at

12.00pm.

Company/Construction Site

Visited

WBHO - Achimota Retail Center

Company History WBHO Construction Pty is a South African Company with

over fourty years experience in the Mining, Earthworks,

Building and Civil work etc.,undertaking variousprojects in

South Africa, Zimbabwe, Congo DRC, Sierra Leone,

Mozambique and other African countries. It was incorporated

in Ghana about ten (10) years ago. They have undertaken

various projects including Ahafo and Akyem Gold projects,

with Newmont Ghana Gold as their client. They have also

worked with various mining companies such as Anglogold

Ashanti, Tarkwa and Obuasi mines, Obotan Gold project at

Asanko etc., among others. Their building works in Ghana

started with the West Hills Mall which is currently the

biggest Shopping Mallin West Africa.


2/14

Projects Location Achimota (adjacent the Old Peace FM building and opposite

the St Johns Grammar SHS).

The construction site shares a boundary with the Electricity

Company of Ghana (ECGs building), Northwards. To the

South, with Best Point Savings and Loan, to the East, with

Pyto Riker (GIHOC) Pharmaceuticals and to the West, by the

Accra - Nsawam Highway.

ProjectsDescription Name of Project:Achimota Retail Centre

The 14000m

2

Achimota Retail Centreis being constructed by

the WBHO. The project is being developed by a private

investor, Delico Ghana Ltd.

The project is expected to house fifty (50) retail shops, banks,

fashion shops, restaurant/food courts, two basements and an

ample space for about 700 cars for parking.

The project commenced four (4) months ago and it is

expected to be completedin October 2015.

2.0 PROGRESS OF WORK

The project commenced four (4) months ago with site vegetation clearance and removal of

topsoil. It continued with detailed engineering earthworks, filling to make up levels in

foundationsand underneathfloor slabs.


3/14

Concrete works have progressed quickly which have seen the basement for car park almost

completed. Roof trusses will be constructed on Retail Shops by next week.

The project is estimated to last for twelve (12) months.The progress summary document which

we saw, indicatedthat the project wasbehind schedule for seven (7) days.

Table 1.0 is a summary showing the progress of works for the month ending October.

Table 1.0Project start date 2ndJune 2014

Project completion date 8th

October 2015

Total days required 300 days

Construction elapse time 84 days

Construction remaining time 216 days

Actual construction remaining time 233 days

Variance in schedule/slip time -7 days

Percentage of completion 28%

3.0 ONGOING ACTIVITIES

As at the time our team visited the site, the workers were on pay-off, with only a few

employees doing power floating on site.

The following activities were ongoing during the time of our visit.

1. Concreting of column and column bases

1. Concrete in surface beds of car park and power floating of floor

2. Fixing rebars in beams

3. Plastering of wall around retail shopsarea

4. Fixing rebars in walls of sewage treatment tank.


4/14

5. Placing of slab infills for coffer/waffle slab

6. Setting out and laying of sandcrete blocks.

7. Scaffolding. i.e. erecting and dismantling.

4.0 FUTURE PROGRESS OF WORK

1. Retail shop area to receive roof trusses

2. Plastering to be continued

3. Slab infills to be completed and concreted

4. First fixesof plumbing and electrical worksto start in some areas and to continue in other

areas.

5. Reinforcement in sewage treatment tank to be completed

6. Formwork to side of walls of sewage treatment tank to be completed

7. Concreting ofseptic tank walls to be completed

5.0 CONSTRUCTION SITE LAYOUTS

The construction site layout is very well arranged as shownin figure 1.0 below. There is space

for vehicular movementsto the various areas which is very important in setting up a construction

site. The site office is located near the entrance, south-easternside of the construction site. This

is to enable visitors, workers, site managers have a fair view ofwho is approaching or entering

into the construction site. Stores and workers change room is located near the entrance on the

south-western side of the construction site. Various laydowns for subcontractors,

refuse/scraps/offcut materials, eating and steel cutting and bending yard. There is a detailed

traffic layout around the office as shown in figure 2.0


5/14

Figure 1.0 Construction site layout and traffic flow plan

Figure 2.0

FIGURE 1.0 SITE/ TRAFFIC FLOW CHAT


6/14

FIGURE 2.0 SITE OFFICE LAYOUT.


7/14

6.0 ENVIRONMENT,HEALTH AND SAFETY

WBHO is well known for its health and safety procedures and records,having chalked a lot of

success in this regard on various completed projects across the country. This project is no

exception. According to the Health and Safety Managers reports, total man hours for the project

as at now stands at 221,031 hours with a ZERO (0) Lost Time Injury(LTI).Now, only Six (6)

incidents were recorded which aremade of First Aid cases, near misses, theft and Equipment

(i.e. tyre) damage. The company has a well-established laydown safety cultures or safety

indicators and a few are stated below;

All workers on the construction site are inducted

All visitors coming into the construction site are inducted

All Operators are also inducted

Workers are advised to report incidents and not harbor them.

Workers using equipment and machinery are trained exclusively and are given

competence certificates

Work areas are visited frequently.

Job hazard analysis (JHA) is carried out before any work begins.

Pre-startinformation/Pre shift information is always carried out before work begins.

Tool box meetings are also carried outweekly.

Companys Safety Notice board with all policies displayed as well as Man-hours worked.

With the above safety indicators or cultures, we made a visit to site to have a fair view and

understanding of construction works and also identify possible hazards and adequacy of safety

signs on the construction site.


8/14

Over and above, we believe that safety on the construction site is well managed and the hazards

found were of minimum risk except for the first floor area not barricaded and no toe board

placed on most scaffolds which might trigger a heights fall of persons, tools and equipment.

Tables 2.0 and 3.0 showpictures of hazards identified, stating its possible harm and possible

corrective measures.


9/14

Table 2.0

Picture Hazard Identification and Possible correctivemeasure

Hazard - Protruding rebar uncapped

Possible Corrective Measure: Userebar cap and/orwrap a caution cape around the protruding rebar

Hazard - No caution tape put around excavationpit.

Possible harm/hazard - Minimum fall, a vehicle

could fall in pit if the driver is not familiar with

working area and possible leg breakages if

someone falls in.

Possible Corrective Measure: Barricade with

caution tape around excavated base pit.

Hazard - No caution tape put around excavationpit.

Minimum fall, a vehicle could fall in pit if the

driver is not familiar with working area andpossible legbreakagesif someone falls in.

Possible Corrective Measure: Barricade with

caution tape around circular excavated base pit


10/14

Table 3.0

Picture Hazard Identification and Possible correctivemeasure

Hazard - No barricading on first floor

Possible harm/hazard - Fall of a person, tools,materials from height.

Possible Corrective Measure - Hard barricading orcaution tapesshould be used.

Access to the floor area can be restricted by using

a safety sign (AREA NOT SAFE) at the stair case.

HazardUnprotected or notoe board installed onscaffold

Possible harm/hazard- Fall of materials, tools and

equipmenton persons working below

Possible Corrective Measure - Use a 200mm highbarricade or 12.5mm plywood secured to the

scaffolds with a binding wire or rope.

Hazard - Not battering the sides of excavation ofdepth exceeding 2m

Possible harm/hazard - possible collapse of the

sides if the ground is unstable which could resultfrom exerted pressure from nearby foundations.

No quick escape for persons working in pit as

there are no side benches.

Possible Corrective Measure - width of excavation

could be widened, benched orbattered.


11/14

Picture Sign Identification, adequacy and usage

Signs Identity-Vehicle speed limit

Position: Sign is placed just after the entrance intothe site.

Purpose: To inform drivers of light and heavy

vehicles and machinery of the maximum speedlimit on the site.

Signs IdentityScaffoldssafe tag

Position: Placed close to the access stairs toelevated scaffold platforms and other floor areas

Purpose: To inform possible users that scaffold or

elevated platform/working area is safe.

Signs Identity- PPE information board

Position: Placed at the entrance of the constructionsite and few locations within the construction site

Purpose: To inform workers, visitors etc.of the minimum safety requirements to access the

construction site


12/14


Signs Identity-Electric Shock

Position: Sign is placed on various electricaloutlets (GPOs) situated at different locations inthe construction work area where electricity is

required for works.

Purpose: To inform workers of possible electric

shocks when accessing these power outlets.

Signs Identity- Assembling or Muster Point

Position: Placed close to the site office with

adequate open area.

Purpose: To inform all workers on the construction

site of the place of assembling in the case of an

emergency and possible evacuation.

Signs Identity- No Smoking

Position: Placed at the entrance of an enclosed areain which combustible materials, chemicals, oil etc.

fuel bundare kept.

Purpose: To inform workers, visitors etc. thatsmoking is not accepted in the area.


13/14


14/14


Signs Identity- Fire Extinguisher

Position: Sign is placed at open and close areaswithin the construction site and wherebusyworksare going on.

Purpose: to extinguish fire in the cause of anoutbreak as a first option before the local fire

service is called upon.

Signs Identity- Emergency Exit

Position: Placed at indoor areasof the site officeson top of thedoors

Purpose: To inform occupants of the exit door in

the cause of an emergency or any fire outbreak.

Signs Identity- Wet Floor

Position: Placed mostly in office areas and otherareas of the constructionsitewhere water is found,

especially on concrete surfaces.

Purpose: To inform workers or occupants that

there could be a possible slip-and-fallif care is not

taken.

Documents

Amasaman Group Assignment Edited by Aheey