False set in pile driving, Civil Engineering

Assignment Help:

Q. False set in pile driving?

For pile driving in certain soils such as dense silt and weathered rock, occurrence of false set phenomenon isn't uncommon. During the driving process, negative pore water pressure is developed and driven piles appear to have sufficient capacity during pile driving as the built-up of negative pore water pressure results in an apparent temporary increase in driving strength andresistance. Though sometime after the pile driving, dissipation of this negative pore water pressure will decrease the bearing strength in resisting the design loads. Occasionally the presence of cracks along pile sections can bring about the problem of false set by dampening effect of stress wavesby these cracks. To evade the problem of false set, a specific percentage of constructed piles must be chosen to perform re-driving to check for false set phenomenon.


Related Discussions:- False set in pile driving

Define seal wear test of shock transmission unit, Define Seal wear test of ...

Define Seal wear test of shock transmission unit? Seal wear test: Seal prevents the leakage of silicon putty in the cylinder. The test is conducted for 30000 cycles assuming th

Building construction drawings, I need a drawing detail of expansion joints...

I need a drawing detail of expansion joints in building and different sizes

Heating season duration , Change the model to take into account the variati...

Change the model to take into account the variation in outdoor temperature for a "typical" day in the heating season based on the heat loss by the fabric and the heating of incomin

Testing of aggregates, Testing of Aggregates: For use in pavement, ro...

Testing of Aggregates: For use in pavement, road aggregates have to be strong, durable and of good shape. A well-graded aggregates adds to the stability of the layer. The fol

Wooden truss, which truss is suitable for 19*22m span on which mangalore ti...

which truss is suitable for 19*22m span on which mangalore tiles can be placed or shud steel truss be preferred for such span and which 1 is more profitable in rural desiggn...

Door, types of door with sketches

types of door with sketches

PROJECT PROPOSAL, HOW CAN I INVESTIGATE THE PROPERTIES UNBURNT COMPRESSED C...

HOW CAN I INVESTIGATE THE PROPERTIES UNBURNT COMPRESSED CLAY BRICKS AND STABILIZED UNBURNT COMPRESSED BRICKS.

Calculate the daily standard production rate of equipment, Calculate the Da...

Calculate the Daily Standard Production Rate of Equipment An excavator with a bucket capacity of 3-yd 3 has a standard operating cycle time of 40 seconds. The daily standard p

IRC class 70R, What will be the structural weight per meter for IRC class 7...

What will be the structural weight per meter for IRC class 70r bridge

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd