Explain forty-five degree spread rule for driven piles, Civil Engineering

Assignment Help:

Q. Explain Forty-five degree spread rule for driven piles ?

For driven piles the length of piles driven into the ground is generally based on dynamic driving formula such as Hiley's formula. In certain ground (for example chalk) the length of piles driven by adopting pile-driving formulas can be far more than adequate since the soil strength may increase with time. In contrast, in silty soils phenomenon of false set can appear and the piles give a false impression of attaining sufficient bearing resistance from the ground. Henceforth the pile's capacity must be verified and checked later by loading test. 

In case driven piles are founded on different depths below ground, 45-degree spread rule is generally applied to check their load carrying capacities. The base bearing loads of higher driven piles are presumed to spread at 45 degrees from their bases and checking is made if loads from higher piles would influence or get transmitted to deeper ones.


Related Discussions:- Explain forty-five degree spread rule for driven piles

Seive analysis, what is sieve analysis? expalin its procedure.

what is sieve analysis? expalin its procedure.

Explain about warren truss, Q. Explain about Warren Truss? A truss is a...

Q. Explain about Warren Truss? A truss is a simple structure whose members are subject to axial compression and tension only and however not bending moment. The most common tru

Explain the underwater problems and material defects, Explain the Underwate...

Explain the Underwater Problems and Material Defects? The major bridge construction materials are steel and concrete. In the past, stone and brick masonry, with lime mortar as

Importance of geotextiles and sand in reclamation works, Question What ...

Question What is main importance of geotextiles and sand in reclamation works? Answer For geotextiles used in recovery, they serve mainly subsequent two purposes

Importance of tendons in post-tensioned members, Importance of Tendons in p...

Importance of Tendons in post-tensioned members Tendons in post-tensioned members are subjected to different amounts of stresses (among themselves) due to following reasons.

Define major ions present in the water, Define Major Ions present in the wa...

Define Major Ions present in the water  Cations:  Calcium, Magnesium, sodium, potassium Anions: Bicorabonate, sulfate, chloride Other ions present: Iron. Manganese, Fluor

Transportation engineering, What areb the philosophical elements of strateg...

What areb the philosophical elements of strategic planning?

Parabola, how to draw a parabola

how to draw a parabola

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