Nuwe water pyplyn - Meer vrae as antwoorde
Na vele besoeke aan die nuwe pyplyn wat deur die munisipaliteit goedgekeur is, het daar baie meer vrae ontstaan.
Oorspronklik het ons, ons bedenkinge gehad oor die koste, die kontrakteurs en die prioriteit vir so ‘n pyplyn, aangesien die pyplyn watertoevoer moet verbeter.
Die kapasiteit om water te pomp is egter ‘n groter probleem as die verspreiding.
Ons het aangehou aandring op die verkryging van ‘n generator soos beloof op menigte geleenthede, wat die waterpomp kapasiteit onmiddellik sou verhoog, aangesien daar nie water gepomp kan word tydens beurt krag nie.
Die logika het op dowe ore geval en het hulle met die projek voortgegaan.
Ons het na vele gesprekke ‘n datum vir ‘n inspeksie van die pyplyn vasgemaak.
Die dringendheid van die inspeksie is verhoog na ons met die hulp van kundiges ons eie inspeksie gaan doen het.
Dit het duidelike gebreke uitgewys in tegniese en beplannings vaardighede.
Die volgende dokument is opgestel en aan hulle verskaf voor die inspeksie, maar hulle wou geen vrae wat uitgewys is tydens die inspeksie antwoord nie en het gesê dit moet tydens die weeklikse vergadering bespreek word.
Hulle is egter meesters in ontwyking van vrae en uitstel taktieke.
Die dokument opper dringende vrae wat die kwaliteit en lewens duur van die pypleiding gaan bepaal.
SITE INSPECTION CHECKLIST
13 April 2023
Background
As from the meeting held on Tuesday 4 April 2023 at 16:00 it was agreed that a site meeting should be held on 13 April 2023 at 14:00 which was postponed Via WhatsApp from 14:00 to 17:00
To assist the technical director in his duties, Save Ngwathe thought it well to make the meeting fruitful and productive by compiling a site inspection checklist for the representatives as it would be unreasonable to expect the community to have expertise on the laws and regulations that accompanies not only contractors but these same rules apply for our Municipality. Especially when working on critical infrastructure like waterlines that feeds reservoirs which in turn must supply water to a community starved of this basic need for so long that they would appreciate the fact that due diligence was taken when they went through all aspects of construction inclusive of all pre construction activities and to compile a quality management system based on law and regulation so that our town conforms to our national standards and regulations. This way we ensure quality of workmanship and a standardised method of work to achieve the desired outcome and provide running water in the taps of the end user.
Methodology
Save Ngwathe compiled a very basic checklist in only the high level construction sequence. This would assist the meeting members to know what to look for in the inspection.
After the meeting is concluded, a snag list would be compiled for the assistance of the Technical Department of Ngwathe Local Municipality. The snag list would be circulated to the meeting members. This would ensure that the Technical Director would have enough input from an educated community and can respond easier and quicker to assist the construction team.
The checklist would make reference to the SANS 1200 and its various sub categories. In order to make the document short and fit for purpose, the full extract will not be placed in the document. It is accepted that any municipal technical department must have a copy of the SANS 1200 and can assist the Representatives with full extracts of the SANS 1200 upon request.
Categories of the SANS 1200 would include:
- SANS 1200A (GENERAL)
- SANS 1200C (SITE CLEARANCE)
- SANS 1200DB (PIPE TRENCHES)
- SANS 1200LB (BEDDING PIPES)
- SANS 1200 L (MEDIUM PRESSURE LINES)
Please refer to the Site Inspection Checklist for a very high overview of the topics that needs to be looked at when doing construction and doing site inspections.
SITE INSPECTION CHECKLIST
| ITEM NO | DESCRIPTION | KEY ITEMS | Y/N |
| 1 | SITE CLEARANCE | WORKING AREA CLEARED | |
| WORKING AREA FREE FROM TOPSOIL AND ORGANIC MATERIAL | |||
| 2 | SETTING OUT | BENCHMARKS | |
| IS THE WORK FOR THE DAY CLEARLY MARKED AND IS THERE SURVEY PEGS | |||
| IS THE TRENCH STRAIGHT | |||
| IS THE TRENCH OF CORRECT DIMENSIONS | |||
| IS THE TRENCH OF THE CORRECT DEPTH | |||
| IS THERE LEVELS AND A “BONING ROD” | |||
| 3 | TRENCHING | IS THE WORK SITE BARRICADED | |
| IS THE MACHINE SUITED FOR THE APPLICATION | |||
| IS THERE ENOUGH PLANT |
| IS THE OPERATIONS ECONOMICALLY VIABLE | |||
| IS THE TRENCH OF SUITABLE SIZE | |||
| IS THE TRENCH OF SUITABLE DEPTH | |||
| IS THE TRENCH BOTTOM FREE FROM ROCK AND OTHER DEBRIS | |||
| 4 | BACKFILLING | IS THE TRENCH BOTTOM LEVEL | |
| IS THE TRENCH BOTTOM CLEAN | |||
| IS THE BEDDING MATERIAL OF SUITABLE GRADE AS PER SANS | |||
| IS THERE 300MM CLEARANCE ON EACH SIDE OF THE PIPE FOR THE CRADLE LAYER | |||
| IS THE CRADLE LAYER OF SUITABLE MATERIAL | |||
| IS THE BLANKET LAYER OF SUITABLE MATERIAL |
| IS BLANKET CRADLE AND BEDDING COMPACTED AS PER SANS | |||
| IS THE BACKIFILLING IN THE VELD COMPACTED IN 300MM LAYERS | |||
| WAS THE WORK AREA MADE GOOD AFTER INSTALLATTION | |||
| 5 | THRUST AND ANCHOR BLOCKS | WAS BLOCKS INSTALLED AT ALL DEVIATIONS AND BENDS | |
| IS THE BLOCKS OF CORRECT DIMENSIONS | |||
| IS THE BLOCKS INSTALLED CORRECTLY | |||
| IS THE BLOCK OF SUITABLE CONCRETE STRENGTH | |||
| 6 | AIR BREAKERS AND CONTROLLERS | WAS THIS INSTALLED CORRECTLY | |
| 7 | TESTING | WAS TESTING DONE | |
| WAS ALL JOINTS LEFT OPEN | |||
| WHAT WAS THE TESTING PRESSURE | |||
| HOW LONG PERIOD OF TIME WAS THE TEST DONE FOR |
| WAS ALL LEAKS FIXED BEFORE CLOSING |
PROGRESS
- METERS OF PIPE INSTALLED CORRECTLY:
- TOTAL METER OF PIPE TO INSTALL:
- METERS OF PIPE INSTALLED CORRECTLY DIVIDE BY TOTAL METERS MULTIPLY BY 100 = PERCENTAGE COMPLETE