The concrete placing shall not proceed if density of fluid near about the bottom of borehole exceeds 1250 kg/m3. Determination of the density of the drilling mud from the base of the borehole shall be carried out by taking samples of fluid by suitable slurry sample approved by the engineer in charge,
in first few piles and at suitable interval of piles thereafter and the results recorded. After flushing is completed, tremie head should be removed and funnel should be attached to the tremie pipe.
إرسال تعليق