a. The angle deviation of all straight piles shall not be greater than ±1; the total deviation of the pile position shall not be greater than 75mm. <br>b. If any deviation is found when drilling the pile, it needs to be corrected in real time. However, if the deviation is greater than the allowable deviation (that is, greater than 1 degree) and cannot be corrected in real time, it is necessary to stop the drilling work and consider corrective measures; if necessary, backfill the drilling and re-open the drilling. <br>c. When reaching the stone surface and Bottom level, the stone office must be collected, and the notification and inspection form shall be submitted to RE to check the stone quality and depth.
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