Junaid Nse Project

8/8/2019 Junaid Nse Project

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DEDICATION

This project is dedicated to the memory of my late father Mr

Junaid Adesanya Ishola Kareem and my late sisters, Mrs Kudirat

Amope Coker and Mrs. Adiyat Atoke Fasasi.

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TABLE OF CONTENTS

Dedication.

2

Table of contents

3

Acknowledgement..

5

CHAPTER 1:Introduction.6

CHAPTER 2:Details of Professional Training and

Experience.....12

2.1 Construction of Housing Unit at Abesan

5..12

2.2 Rehabilitation of Rural Roads in Odeda LocalGovernment..14

2.3 Underground Water Development (Borehole) in

Aigbede Odeda Local Government

Council.15

2.4 Rehabilitation of Building Project in Abeokuta South

Local Government Council..16

2.5 Construction of College Clinic Phase I & II at F.C.E Abeokuta..17

2.6 Report of Professional Experience on Construction

of 1500 Seating Capacity Lecture Theatre Phase 1

at Federal College of Education Osilele

Abeokuta................18

2.6.1 Introduction18

2.6.2 Preliminary Planning.18

2.6.3 The Architectural Design..19

2.6.4 Problems 19

2.6.5 Prospect ....22

2.6.6 Design Analysis..243


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2.7 Report of Professional Experience on Reconstruction of

ALG School 1 & 2 Oke Ago-Owu.27

2.7.1 Reconstruction of ALG School 1..272.7.2 Reconstruction of ALG School 228

LIST OF TABLE

Table 1: Method Statement for poultry building construction7

Table 2: Programme probability Distribution for Construction of

Poultry Building project at Gracib Farm Site 9

Table 3: Spot height survey of phase A

.21

Table 4: Spot height survey of phase B

..22

4

3a


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LIST OF FIGURE

Figure 1: The critical path Network schedule for construction

of poultry building project at Gracib farm site.

7b

Figure 2: Program of work for rehabilitation of Gbongon

-Iwo Iseyin Road contract No:

5952.11b

Figure 3: Critical path method scheduling for Rehabilitation of

Gbongon -Iwo Iseyin Road

............11c

Figure 4: Spot height survey for construction of 150 Seating

capacity lecture theatre at FCE Osiele

Abeokuta..22b

5

3b


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Figure 5: Schematic diagram for proposed Ground floor level of

1500 seating capacity lecture theare at FCE Osile

Abeokuta.......................................................22c

Figure 6: Progamme of work for Renovation of school in Owu

Gbagura community Abeokuta - a world Assisted Project

of Ogun State Community Based urban Development

Project ...................................................................28b

LIST OF PLATES

Plate 1a: Preliminary survey and Excavation of

Foundation and column Bases.19b

Plate 1b: Determination of DPC and oversite concrete

Floor level .19b

Plate 2a: Consultants and Director of works and service Dept.

Inspecting the casting of oversite Concrete floor

..20b

Plate 2b: Consultants and Director of works and services Dept.

Inspecting the final completion of sub-Structure

work.20b

6

4a


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Plate 3a: Super structure works commence from the

Stage Area

..25b

Plate 3b: Consultant Engineer (Engr. Sogbetun) checking

The column height with leveling instrument.25b

Plate 4a: Casting of level + 2250 and level +

3600..25c

Plate 4b: completion of Block work and concrete

work to roof

level..25c

Plate 5a & 5b: Bar arrangement of Doubly reinforcement concrete

Deep Beam of the stage area before

casting.25d

Plate 6a & 6b: Steel Roof formation

..25e

7

4b


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ACKNOWLEDGMENT

I give praises, glory and honour to the Almighty Allah the

most high God, the most beneficent and the most merciful to

mankind.

I will continually appreciate the tremendous support and

encouragement of my humble mentor, Engr. R.A. Kumolu, may

the Lord continue to grant him and his family immense love,

shower his abundant and infinite mercy on them.

I also thank my employers and all that have contributed to

my exposure in the last seventeen years. To just mentioned few,

Engr. Emmanuel Ibok Essien (Ritman Nig Ltd), Engr. Sogbetun

(Tropaed Groups), Engr. Odedoyin (FCE Abeokuta), Mr Oyetunji,

W.B. (Fatnuroye Ltd), Chief Daodu, A. (OASIS/Cardinal), Arc R.

Ayegbajeje (Ren Consult) and Arc Olamilekan Adegbile (Adkon

Engineering Ltd).

The project would not have been completed if not for the

cooperation and assistance of Mrs. Junaid Abosede Olubukola,

Oluwafeyisayo,Oluwafayokemi,Oluwaferanmi,Balikis,Famakinwa

Brown, Alhaja Junaid Abeni Murilat and Mrs Toyin Aderogba. May

Allah grant everyone his infinite mercy.

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1.0 INTRODUCTION

This report is presented to Nigerian Society of Engineers in

partial fulfillment for my election as a corporate member of the

Nigerian Society of Engineers. It covers a period of seventeen

years of active engineering service.

On graduating with Bachelor of Science in Civil Engineering

from Obafemi Awolowo University, Ile-Ife in March 1991 I was

deployed to Akwa-Ibom State for National Youth Service Corps

where I was posted to Ritman Nigerian Limited, Ikot-Ekpene for

my primary assignment -an indigenous engineering firm

specialized in rural development projects.

During the service year I joined the company as a Site

Engineer under the supervision of Engr. Emmanuel Ibok Essien

and I supervised the construction of the following projects at

Cracib Investment Limited farm site in Ikot-Otu between May and

November 1991.

The projects includes:

(i) Administrative office block

(ii) Twins flat of 3 bedrooms for staff accommodation

(iii) 4 blocks of multipurpose livestock building

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The major problem encountered at Gracib farm site was

during the foundation excavation. This poultry building project

was sited on a loose soil. This problem was overcome by

providing earthwork support to the sides of excavation to enable

the excavation reach the suitable Stratum of required bearing

capacity. I prepared my method statement and programme of

work for the construction of poultry buidings and other jobs, at

the same time make a weekly site report for Engr. Essien.

In January 1992 I was assigned to road rehabilitation

projects within Ikot-Ekpene. The job includes asphalt overlay and

design of open channel flow for the lined drains.

The roads in Ikot-Ekpene are:

(i) Ibong Road - 2.727km

(ii) Dibue Road - 0.744km(iii) Child Maternal Health Road - 0.302km

(iv) Oko Eto Road - 0.602km

(v) Etok Akpan Amond Road - 0.782km

(vi) Old Itu Road - 3.5km

These roads was awarded to Ritman Nigeria Limited by Ikot-

Ekpene Local Government Council via job order from Council

Chairman and supervised by the Council Engineer -Engr. E.

Umeh.

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Table 1: Method Statement for poultry building

construction

Operation Qty Method Predetermine Contemporary Labour out

put rate

No of

Labour

No of

days

A Provision of aggregates 92m3 TipperLorry

- E, F, G 4.6m3/day 20 men 10 days

B Site clearance 400.95m2 Manual - C 100m2/day 4 men 2 days

C Setting out of works 340.2m2 Manual B D 2 men 1 day

D Excavation of foundation 48.35m3 Manual C E, F, G 4.05m3/day 11 men 2 days

E Moulding and curing of

blks

3559blks Manual A, D H 350blk/day 6 men 10 days

F Blinding of foundation

trench

10.48m3 Manual A, D I 0.5m3/day 6 men 1 day

G Provision of Cement and

water

10 Tons/

15000ltrs

Lorry/

Tanker

A, D K 1.67Tons/day 1 men 6 days

H Dummy activity - Manual E I - - 0 day

I Blockwork - setting

foundation to DPC level 1029blks Manual H, F I

85blk/day 12 men 2 days

J Laterite earthworks

filling, leveling andcompaction 88.25m3 Manual I K 3.0m3/day 30 men 3 days

K Over site concrete 37.18m3 Manual J, G M, L 1.49m3/day 25 men 1 days

L Roofing materials

delivery Do Lorry K N Sum 2 men 4 days

M Blks work setting DPC to

window seat to roof level 2326blks Manual K O, P, Q 75blks/day 32 men 6 days N Frames & Doors

preparation

8 Nos

Manual L O, P, Q 2 Nos/day 8 men 4 days

O Roof trusses formation Do Manual M, N R 4 men/day 16 men 4 days

P Plumbing works Do Manual M, N U, V, W 2 men/day 10 men 5 days

Q Excavation of foundation

trench for water tanks 0.65m3 Manual M, N S 4.05m3/day 1 men 1 day

R Roof sheeting Do Manual O II, V, W 4 men/day 4 men 1 day

S Construction of water

tank base

1.69m3 Manual Q T 0.5m3/day 4 men 1 day

T Block work- water tank 224blks

2.0m3 Manual S U, V, W

85blks/day

5 men 3 days

U Rendering internal &

eternal wall 216m

2

Manual R, P, T Z, Y 18m

2

/day 12 men 3 daysV Fixing of door frames 8 Nos Manual R, P, T X Sum 2 men 1 day

W Provision of wire netting 240m2 Lorry R, P, T Z, Y Sum 1 men 2 days

X Dummy activity - - V Z, Y - - 0 day

Y Framework for Netting Lump Manual U, X, W ZB 3 men/day 12 men 4 days

Z Floor screeding 10.36m3 Manual U, X, W ZA 0.83m3/day 11 men 2 days

ZA Casting of Floor B 14.48m3 Manual Z ZA 0.5m3/day 21 men 2 days

ZB Netting 237m3 Manual Y ZC 3 men/day 10 men 3 days

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ZC Fixing of Doors 8 door Manual ZB ZD 2 Nos/day 4 men 2 days

ZD Clearing of site Do Manual ZC, ZA ZE 1 men/day 1 men 1 day

ZE Handling over - ZD - 1 men/day 1 men 1 day

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Table 2: Programme Probability Distribution forConstruction of Poultry Building project at GracibFarm Site

Activitie

s

(a) (m) (b) (t)

A 10 12 15 12 0.83B 2 3 5 3 0.50C 1 1 2 1 0.17D 2 3 5 3 0.50E 10 14 20 14 1.67F 1 2 3 2 0.33G 6 10 15 10 1.50H 0 0 0 0 0I 2 3 5 3 0.50

J 3 5 8 5 0.83K 5 7 10 7 0.83L 4 5 7 5 0.50M 6 8 10 8 0.67N 4 5 8 5 0.67O 4 5 6 5 0.38P 5 8 14 10 1.50Q 1 2 3 2 0.33R 1 2 3 2 0.33S 1 2 3 2 0.33T 3 4 6 4 0.33

U 3 5 8 5 0.83V 1 2 3 2 0.33W 2 3 4 3 0.33X 0 0 0 0 0.00Y 4 6 7 6 0.50Z 2 3 5 3 0.50

ZA 2 3 5 3 0.50ZB 3 4 5 4 0.33ZC 2 3 4 3 0.33ZD 1 2 2 2 0.17

ZE 1 2 2 2 0.17

The major problem encountered on this project is that there

was no hydraulic engineering design for the land drain. I sought

the permission from Engr. Essien to allow me design a suitable13


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trapezoidal open channel for the lined drain, which he did, and

make little correction on the design in conjunction with council

Engineer before the final execution was carried out without stress

before the asphalt resurfacing.

I joined Fatnuroye Nigeria Limited in 1994 as Site Engineer

under the supervision of Engr. Sogbetun and Engr. Odedoyin.

During this period, I executed various Civil Engineering projects

at private, governmental and institutional level. These includes:

(i) Construction of housing Unit at Abesan 5

(ii) Grading of rural roads in Odeda Local Government

(iii) Underground water development (Borehole) in Aigbede

(iv) Rehabilitation of building project in Abeokuta south local

government

(v) Construction of prototype office building at Federal College of

Education Abeokuta

(vi) Construction of College Clinic Phase 1& II at F.C.E. Abeokuta.

(vii) Rehabilitation of Main Hall F.C.E. Abeokuta

(viii)Construction of 1500 seating capacity lecture theatre phase 1 at

F.C.E. Abeokuta

In November 2006, I joined Oasis/Cardinal Nigeria Limited

as a Site Engineer for the renovation of schools in Owu/Gbagura

Community. A World Bank assisted project under the supervision

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of Ogun State Community Based Urban Development Project. The

Consulting Engineer is Osot Associate Limited under the

leadership of Engr. R.A. Kumolu.

The renovation works includes:

(i) Holy Trinity Primary School

(ii) Abeokuta North L.G. Pry Sch I, Oke Ago-Owu

(iii) Abeokuta North L.G. Pry Sch. II, Oke Ago-Owu

I later joined Batson Nig. Ltd in August 2007 for

rehabilitation of Gbongan-Iwo-OYSB road in Osun State for major

rehabilitation as company Project Manager. This project was

under the supervision of federal ministry of transportation

engineers, and was supervised by Engr. Z.O. Iseyemi, Federal

Ministry of Transportation field office, osogbo.

In January 2008, I joined Adkon Nigeria Limited as Project

Engineer. On assumption of office I was transferred to supervise

the renovation works at Zenon House, Victoria- island, Lagos.

2.0 DETAILS OF PROFESSIONAL TRAINING ANDEXPERIENCE

On assumption of office at Fatnuroye Nigeria Limited as a

Site Engineer, I was introduced to Engr. Odedoyin and Engr.

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Sogbetun, they are both registered engineer and has been with

the company for several years on part-time basis. I was the only

engineer on full pay roll list; meanwhile I was faced with multiple

challenges. But I had little or no fear because of my exposure

during my service year with Ritman Nigeria Limited where I

worked independently without much supervision from my boss -

Engr. Emmauel Essien.

2.1 CONSTRUCTION OF HOUSING UNIT AT ABESAN 5

The housing unit at Abesan 5 was my first assignment. I

used few days in the office for project planning. The following

document was released to me for proper planning of the job.

(i) Price Bill of Quantities

(ii) Architectural drawing

(iii) Structural drawing

Other parts of the contract document like payment schedule

for the preparation of interim payment certificate, as well as

expected time of completion of the project were also released, to

enable me prepare my programme of work.

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I produced a comprehensive programme of work for the

project within the projected cash flow projection and method

statement for each activity. This was later followed by sourcing

for various equipments that are to be hired for the execution of

the project. At the same time, certain items and materials were

listed for sub-contractors for execution. At the end of these

planning we moved to site immediately and started with

preliminary items like.

(i) Site clearance and construction of site office

(ii) Provision for adequate supply of water and electricity.

(iii) Movement of equipment and matetrials to the site.

The major problem encountered was that the structure was designed

on strip foundation,but the site fall within the swampy and water-

logged area of the estate that calls for raft foundation design or wide

strip foundation.. The attention of the resident engineer and other

consultants were called to address the situation,raft foundation was

finally approved which I carried out the design under Engr. Sogbetun

The bill of addendum was forwarded for the new raft foundation

design.

We swung into action after the final approval of the addendum

and begin with setting out of works. The project planning agenda

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makes the execution easier and interesting I prepared progress

report and photograph against every monthly site meeting for

various level of stages of work.

2.2 REHABILITATION OF RURAL ROADS IN ODEDA LOCALGOVERNMENT

The grading of roads project was the second assignment to

be handled. These roads connect various communities and

villages in Ilugun, Olodo and Alagba ward in Odeda Local

Government. The contract was awarded in October and was

expected to complete within 45 days. The major assignment was

patching of potholes and clearing of road verges. Meanwhile, we

set out having prepared programme of work and immediately

moved to the site for execution. The major problem encountered

was that most of these roads has been abandoned for years.

Therefore I make provision for the earth drains on both sides and

culvert drains where necessary. But before this was carried out, I

had earlier informed the Council Engineer about the development

and importance of this to protect the flexible pavement. This

enables me to prepare variation on extra job and was approved

by the Council Chairman. The project was completed within the

working time frame of programme of work.

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2.3 UNDERGROUND WATER DEVELOPMENT (BOREHOLE)IN AIGBEDE VILLAGE

The huge success recorded on the rehabilitation of roads

fetch the company underground water development in Aigbede.

It was awarded via a job order from local government council

chairman.

The geophysical study was carried out within Aigbede

village by council geophysicst consultant. The result revealed

that the aquifer is 124.7m below NGL and sedimentary layer

takes about 35m while bedrock take about 90m depth. The result

enables me to look for a powerful drilling rig for the execution of

this job.

The drilling and casing operation however went

successfully. The major problem encountered was during the

geophysical operation. The geophysical studies took us longer

time before we could get a better location for high yield of the

aquifer.

Other problem encountered was that of distribution by

gravitational method to minimize cost on supply. This was tackled

by construction central elevated storage on nearby hill to ensure

even distribution by gravity to all nooks and corners of the

village.

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2.4 REHABILITATION OF BUILDING PROJECT IN ABEOKUTASOUTH LOCAL GOVERNMENT COUNCIL

The project was designed for staff accommodation and was

later abandoned for years. As a result, various cracks have

developed within the structure, roof leakages due to lack of

maintenance. All the cracks were corrected with wire-mesh

concrete, and the building was re-roof with aluminum long span.

The major problem encountered was at the early planning

stage when I discovered that certain items were omitted while

some are under quoted in the bill of quantities. These include

reinforced concrete works on the sun breakers and the external

works on septic tank. I prepared the bill of addendum in respect

to these items and forwarded to council engineer for approval.

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2.5 CONSTRUCTION OF COLLEGE CLINIC PHASE I & II ATF.C.E ABEOKUTA

The project was awarded to Fatnuroye Nigeria Limited by

selective tendering having being convinced on the competence of

the company on previous projects handled, such as the prototype

office building and the minor renovation of the Main Hall in the

previous year.

I submitted my programme of work after working on the bill

of quantities and the working drawings - architectural and

structural drawings. The stakeholder on this project includes the

work and services department of the college, the consultant

architect- Ren consult (Arc Remi Ayegbajeje) and consultant

engineer- Tropaed Group (Engr. Sogbetun). Engr. Abiodun and

myself represent the contractor at the site meeting. Engr Abiodun

is a registered Engineer and works on part-time basis with the

company. The project is the first major capital project awarded to

us by the college. I prepared progress report on site activities

monthly for Engr Abiodun against every site meeting. I coordinate

and manage all the site activities and ensure the job is executed

to specification standard within working timeframe.

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2.6 REPORT OF PROFESSIONAL EXPERIENCE ONCONSTRUCTION OF 1500 SEATING CAPACITY LECTURETHEATRE PHASE 1 AT FEDERAL COLLEGE OFEDUCATION OSILELE ABOKUTA

2.6.1 Introduction

In the year 2003, Federal College of Education Osiele

Abeokuta increased her regular student intake by 50% while the

Sandwich Programme Students intake was double. As a result,

there is need to get a bigger space lecture theatre for students.

This led the institution to call for design of 1500 seating capacity

lecture theatre within the Main campus.

Our success story on construction of college clinic phase 1

& 2 made us to aspire for bigger challenging projects. However

this led us to go for the open and competitive tendering on

construction of the 1500 seating capacity lecture theatre phase

1.

The job was awarded to us after the final ratification of the

tendering board and governing council of the college.

2.6.2 Preliminary Planning

The project planning started as usual with the working

drawings which includes architectural drawings and structural

drawing; the priced bill of quantities to enable draw a

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comprehensive programme of work at the same time give high

priority to cash flow projection and other relevant issue in site

management.

2.6.3 The Architectural Design

Both the architectural and structural works of this beautiful

project was perfectly carried out by experienced professionals on

assumption that a suitable site that conform to the design slope

would be found within the main campus by the works and

services department of the institution for the project. Therefore

the preliminary survey of the site to locate the project was not

carried out before the design. In the design, the architect avoids

creation of upper floor and basement slab to minimize cost so

that this project could pass through a ministerial approval.

2.6.4 Problems

The site chosen did not conform to assumed slope used for

the design, therefore the first major assignment on site, was to

carry out the preliminary survey to enable us to determine

Oversite concrete floor level. At the same time, give a clear

picture of the task ahead on substructure works, cost implication

and appropriate engineering solution that would be

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required to combat various problems at a minimal cost

without compromising quality and standard.

It was observed from the earthworks calculation that the

required filling necessary exceeded cutting more than 100%.

These however necessitate for proper planning to avoid

additional cost on the following activities.

(i) Laterite earth filling

(ii) Substructure block wall

(iii) Reinforcement

(iv) Reinforced in-situ concrete

(v) Sawn formwork

(vi) In-fill weak concrete

(vii) External rendering of substructure block walls

(viii) Painting and decoration of external substructure block

walls

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Table 3: Spot heights Survey of Phase A

Location Back sight Fore sight H.I Reduced

Level2.968 2.68 Assumed R.I

A 2.968 0.000B 1.5895 +1.373C 2.450 +0.518D 1.715 +1.253E 2.203 +0.765F 1.029 +1.939G 1.928 +1.040H 1.162 +1.806J 1.469 +1.499K 0.728 +2.240L 0.782 +2.186

M 0.558 +2.410N 0.350 +2.618O 1.535 +1.433P 2.210 +0.758Q 3.148 -0.180R 0.550 +2.418S 0.861 +2.107T 1.559 +1.409U 3.595 -0.627V 3.215 -0.247W 3.242 -0.274X 3.612 -0.356Z 2.113 +0.855

T22 1.415 +1.553A22 3.364 -0.396

Table 4: Spot heights Survey of Phase B

Station Back sight Fore sight H.I Reduced

LevelM 2.412 14.822 14.822 12.410

(Assumed R.L.)M2 2.235 12.587M3 1.832 12.990M4 1.842 13.142N2 2.000 12.822N3 1.364 13.45825


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N4 0.912 13.910N5 0.564 14.258L2 2.268 12.554L3 2.251 12.571L4 2.256 12.598L5 2.201 12.621

2.6.5 Prospect

After due consultation at the site meeting with all the

stakeholders on the project, I took the following steps towards

the successful completion of the job.

(1) Reducing the seat risers from 150mm to 100mm scaled the

vertical height difference of the sub-structure down. This brought

down the cost on substructure works within level + 300 and level

+ 6600 by 30%.

(2) After the setting out of works has been carried out, I excavated

for the column bases and ignore preliminaries

excavation for foundation walls. This enables me to use a

pail loader to bring enough laterite earth filling into the

foundation rather than resulting into expensive manual

labour filling. After the exercise, I did my excavation and

raise the foundation wall. This task also saved me more

than 75% of the real cost of earth fillings.

(3) Also since basement slab was deliberately avoided for

financial reason I was forced to make laterite earth filling to

2.8m above the natural ground level in some areas.

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Meanwhile, I looked for the way to minimize cost and

consider various options.

I consider double wall to be too expensive and structurally

unfit to resist the strong lateral earth pressure. Also, the

excessive height of the double wall that will start from foundation

and terminate at the German floor.

The second option considered was to replace the external

sub-structural block work with retaining wall.

The third option was to construct a LATERAL GROUND

BEAMS within the external sub-structural block work and

spanning over external columns. The lateral ground beam was

introduced at 1 metre apart to break the effect of

laterite earth filling pressure on the external wall as shown in the

diagram.

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Lateral Beam 2

Lateral Beam 1

N.G.L

1 m

1 m


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Figure6 : Arrangement of lateral beam at the substructure

level

2.6.6 Design Analysis

Total horizontal pressure Ph = Area of s

Area of s = bxh

= Ph.h

= . .h.ka.h

= kah

2

where ka =

sin1

sin1

+

is angle of repose depend soil condition

= Density of the earthworks

h = height in metre

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Pa

x

h

2/

3h

1/

3h

Pa= .h.ka


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Moment

Taking moment M due to Ph about base

M = Ph.h/3 = kah2. h/3 = 1/6 kah

3

M & h3 since and ka are constant

When h=0, M=0

At the base h=H M=Max

= 18KN/m3

When h = 2.8m

Ka = 0.33 (take angle of repose between soil to be 300)

M =6

2Kah

=

6)8.2(3 3.0/1 823

mxxmK N

= 21.73KN.m

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Reinforcements

Mu = 0.156 fcu bd2

= 0.156 x 20 x 225 x 2002

= 28KN/m2

Since M < Mu

Design for As only

K =2bdfcu

M=

2

6

20022520

1073.21

xx

x= 0.12

la = 0.5 +9.0

25.0 K = 0.5+

9.0

12.025.0

= 0.5+ 144.0 = 0.88

la = 0.88

As =dl aF

M

y

9 5.0=

20088.041095.0

1073.216

xxx

x

= 317mm2

Provide 2Y16 (402mm2) BOTTOM

Links Y10@ 225 C/C

Hanger bar 2Y12 (226mm2)

30

. ...

225mm

2Y122Y16

Y10@225 C/C

300mm


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2.7 REPORT OF PROFESSIONAL EXPERIENCE ON RECONSTRUCTION

OF ALG SCHOOL 1 & 2 OKE AGO-OWU

On assumption of office as a Site Engineer with

OASIS/CARDINAL Nig Ltd, I was hurriedly moved to Oke Ago-Owu

site to liase with the resident Consultant Engineers on the project

at the same time to pay attention to engineering matters on site.

2.7.1 Reconstruction of ALG School 1

The demolition exercise has been carried out before my

arrival and I quickly supervise the setting out of works to put the

job on the right course. The major problem encountered was on

substructure because of the topography of the site that

culminated into excessive height of the foundation wall and

oversite concrete floor level. But this was solved with introduction

of lateral ground beam on the sub-structure of the load-bearing

wall to prevent any possible shear failure, at the same time

enhance better structural stability.

The lintel level of the load-bearing and none load- bearing

wall was made of reinforced concrete all through to prevent

future vertical cracks that may occur.

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2.7.2 Reconstruction of ALG School 2

The project was initially billed for renovation when the

preliminary studies was carried out in 2002. The structural

defects on the building had reached alarming stage before the

project was awarded in 2006. The project consultant immediately

recommended total reconstruction to Ogun State Community

Based Urban Development Project, the recommendation was

approved and existing structure was demolished while the major

reconstruction was carried out.

The structural design of the reconstruction works was to be

carried out by the Supervising Project Consultant (Osot Associate)

under the leadership of Engr. R.A. Kumolu. But I sought the

permission of my humble mentor, distinguished registered and

highly respected Engineer (Engr. R.A. Kumolu) to allow me carry

out the design under his supervision. My request was granted, as-

built architectural drawing was produced and the design was

carried out as stated in volume 2 of this report.

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Documents

Junaid Nse Project