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Procontractor's Posts

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PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 7:03pm On Jun 26, 2024
Kickers, column reinforcements...

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 5:46pm On Jun 26, 2024
Oversite Concrete...

PropertiesRe: Need HDF Doors?: Check Out Our Custom HDF Doors With Edge Protection Material. by Procontractor(op): 11:11am On Jun 26, 2024
Our doors are uniquely crafted to give you that experiential living...
PropertiesRe: Need HDF Doors?: Check Out Our Custom HDF Doors With Edge Protection Material. by Procontractor(op): 6:05am On Jun 26, 2024
toba1909:
I can't see your reply to this.
The message was automatically removed by Nairaland anti spam bot. I have not witnessed that before.
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 7:17pm On Jun 25, 2024
Blinding, mechanical works

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 7:15pm On Jun 25, 2024
Casting of foundation...

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 6:36pm On Jun 24, 2024
Formwork to beams and starters...


Mechanical and electrical sleeves..

PropertiesRe: Need HDF Doors?: Check Out Our Custom HDF Doors With Edge Protection Material. by Procontractor(op): 7:57pm On Jun 23, 2024
Our work is unique.
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 7:55pm On Jun 23, 2024
Pile caps, beams and starters...

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 7:50pm On Jun 23, 2024
Pile caps, foundation beams and starters in pictures...
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 8:17pm On Jun 22, 2024
@ Larwin


Hope I did justice to your question?
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op):
[quote author=Larwin post=130605614][/quote]Yes. The Geotechnical report recommended a depth of 14m,....this report is always forwarded to the Structural Engineer for Structural analysis and design of the building. So ultimately the Structural Engineer will design based on the recommendations from the Geotechnical report.


Let me further break it down:

After soil investigation the key data to be provided by the Geotechnical engineer is as follows:

1) proposed depth of pile

2) proposed diameter of pile

3) proposed service load on pile


In our own case a trial pile was done based on those recommendations, loaded,.. and result compared with the proposed service load to ascertain if there's any difference in theoretical service load provided by the Geotec and actual pile carrying capacity. Results were ok and therefore the Structural engineer proceeded to design with proposed service load. This is a very important process. Subsequently after pile installation confirmatory PLT is done on selected piles.
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 10:44am On Jun 22, 2024
Pile caps reinforcements arrangements...

PropertiesRe: Need HDF Doors?: Check Out Our Custom HDF Doors With Edge Protection Material. by Procontractor(op): 10:41am On Jun 22, 2024
Our doors are double panel
with internal bracing.
50mm thick.
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 10:18am On Jun 22, 2024
Excavation and pile cropping contd...

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 11:52pm On Jun 21, 2024
More updates for this project coming tomorrow......stay tunned.


Also new thread for block 2 coming
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 7:10pm On Jun 20, 2024
This Project follows a standard construction ssequence and methodology.


Next operation:

1) Excavation to required level


2) Blinding


3) Pile cropping preparatory to pile cap reinforcements arrangements.




Pictures

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op):
Now to the PLT summary:

Design servce load on pile = N340KN


Geotechnical Engr tested using ultimate limit state as per the standard. A factor of 1.5 of service load. That will come to 510KN. ( as engrs we are concerned with applying factor of safety, this superceeds serviceability limit state). In a layman's terms we opt for the worst case scenario.


The loading system is applied in increments of 25% at every Loading and Unloading Cycle over a period of 12hrs.




Outcome :


** After PLT procedure, settlement on trial pile was far less than 10% of the nominal pile diameter.


Verdit:

Pile ok


** A confirmatory PLT was equally conducted which came to the same outcome.


What this implies is that we have APPROVAL from the Geotechnical engr to proceed with laying of pile caps and other foundation operations.
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 4:36pm On Jun 20, 2024
Larwin:
Weldone
I appreciate it sir...
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 10:37pm On Jun 19, 2024
Pile Load Test on Block 3 trial Pile Cap In Pictures:

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 10:19pm On Jun 19, 2024
Based on the result from the PIT 2 piles was recommended for Pile Load Test.


I will break down the Pile load test procedure subsequently,... let's have a look at pictures for the PLT
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 7:07pm On Jun 19, 2024
Pile Integrity Test;


At the completion of pile installation, PIT was conducted on all installed piles to ascertain:

1) Continuity

2) Defects such as cracks, necking and soil inclusion

3) Change in cross section

4 ) Approximate pile length

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op):
Pilling operation in pictures:



** Diameter of Pile = 450mm

** Depth of Pile = 14m

** Total number of piles in Block 3 = 124



2 percussion rigs was employed for block 3 averaging 4 to 6 piles daily.

Duration of pilling was approximately 30days from date of commencement.

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 4:28am On Jun 19, 2024
chelseamann:
Following grin
I love massive projects
Thank you sir,... stay tuned.
PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 10:00pm On Jun 18, 2024
Design was received and approved 3 months ago



Now to the action





We decided to use PERCUSSION MACHINE for the PILLING operation.

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op):
3D model





Copy right: CGL LTD



Modified: Will post the revised drawing on the cause of this thread.

PropertiesRe: Construction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op): 9:10pm On Jun 18, 2024
Soil investigation in pictures


5 CPT and 3 boreholes to ascertain soil bearing capacity and ultimately design for pile service load

PropertiesConstruction Diary of Our 4 Blocks Of 6 Storey Residential Buildings Block 3 & 4 by Procontractor(op):
Good Evening Distinguished Ladies And Respected Gentlemen.


Introducing To You; SOLOMON'S COURT'S


With Gratitude To God Almighty, It Is My Uttermost Pleasure To Bring To You The Construction Diary Of This Epic Project.


DEVELOPERS: CONCRETE GRIDS LTD

SUPERVISING SUB-CONTRACTORS : GOZOK ENGINEERING SERVICES LTD.

FINANCIERS: SHELL COOPERATIVE & THRIFTY SOCIETY ( COOPLAG)

LOCATION: SURULERE, LAGOS NIGERIA.


KEY FEATURES :

1) 3 Bedroom All Ensuite With 4 Bathrooms

2) 11 Flats In One Unit.

3) LIFT

4) Spacious Parking Lot On The Ground Floor

5) State Of The Art Swimming Pool

6) Fully Servised Apartments.


I Will Be Updating The Construction Sequence For Block 3 & 4 On This Thread......Subsequent Threads Will Cover blocks 2 & 1


We Are Already 3 Months Gone On This Project,....Will Bring Us Up To Speed On Block 3 To The Current Phase Of the Project,........And Then Daily Updates Will Follow.

KINDLY STAY TUNNED!!





GOZOK...



Modified:
PropertiesRe: Need Complete Working Drawings With Stamp For Your Project(s)? Look No Further!! by Procontractor(op): 6:49pm On Jun 18, 2024
Our drawings will leave you desiring to build.
PropertiesRe: Need HDF Doors?: Check Out Our Custom HDF Doors With Edge Protection Material. by Procontractor(op): 6:48pm On Jun 18, 2024
We are good at what we do,.... we give that experiential living you seek for. Something uniquely different!
PropertiesRe: Need HDF Doors?: Check Out Our Custom HDF Doors With Edge Protection Material. by Procontractor(op): 11:03am On Jun 11, 2024
We bring inovation to construction.

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