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Common Pile Driving Problems and Solutions(I)
Apr 13, 2017

Piles With Blow Count Above Minimum Pile Penetration Requirements.


Check the pile has sufficient drivability and that the driving system is matched to the pile. If the pile and driving system are suitably matched, check driving system operation for compliance with manufacturers guidelines. If no obvious problems are found, dynamic measurements should be made to determine if the problem is driving system or soil behavior related. Driving system problems could include preignition, preadmission, low hammer efficiency, or soft cushion. Soil problems could include greater soil strength than anticipated, temporarily increased soil resistance with later relaxation (required restrike to check), large soil quakes, or high soil damping.


GL-4000C型工程钻机四川康定引孔.JPG




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