Site investigation is a term to cover a lot of aspect about the site. For the Engineer in construction site, it means the process to find out the soil and rock condition. From the project management perspective, we see the most essence is whether the quality control system is working well in place . This control system involves sampling , inspection, recording and counter-check. Although the PNAP has imposed a lot of restrains in the site investigation, the entire controlling mechanism still heavily rely on the professional site staff. The sample taken will be inspected the the engineer. This inspection is to be fed back to the Designer to confirm the design assumption of piling coincide well to what happens on site. This is the feedback loop essentially important in the entire QA process.
I witness the coring process and I can say the coring of soil / rock is not a pleasant job. Sometimes, the sample was damaged in the process, sometimes, the sample was dropped in pieces. Thus , a good sampling and coring process did demand patience by labour, right machine set up, on-site engineer inspection and recording.
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