Loading and unloading cycles for soil nails, Civil Engineering

Assignment Help:

In carrying out pull-out tests for soil nails, it generally requires the unloading and loading of soil nails of several cycles up to 80% of ultimate tensile strength of soil nails. Principal function of soil nail tests is to verify the design assumptions on the bond strength between grout and soil that is likely to exceed the design values based on past experience. Additionally the ultimate bond strength between grout and soil can be determined and this information is helpful as a reference for future design.

Then someone may query the purpose of conducting load/unloading cycles of soil nails as it doesn't provide information on the above two major purposes of soil nails. Actually loading and unloading soil nails can provide other significant information on their elastic and plastic deformation behaviour. Though as stress levels in soil nails are generally low, knowledge on elastic and plastic performance may not be of significant value. Alternatively the creep and slippage performance of soils nails can also be obtained that may be useful for some soils.

2100_Loading and unloading cycles for soil nails.png

Fig: Typical pull-out test result


Related Discussions:- Loading and unloading cycles for soil nails

Sieve analysis, size of sieve to analysis the grading of 10 mm size stone g...

size of sieve to analysis the grading of 10 mm size stone grit

Define non-destructive inspection of concrete substructures, Define Non-des...

Define Non-destructive inspection of Concrete Substructures? If there is evidence of significant deterioration, then a Level III inspection, involving either non-destructive or

Explain the design of waterway, Q. Explain the Design of waterway? When...

Q. Explain the Design of waterway? When the river flows between high banks and the whole width is actively functioning during high floods, the bridge waterway should practicall

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.

Concrete cover to enhance fire resistance, Q. Concrete cover to enhance fir...

Q. Concrete cover to enhance fire resistance? In the event of exposing concrete structures to a fire, a temperature gradient is established across the cross section of concrete

Levelling, Permanent adjustment and temporary adjustment

Permanent adjustment and temporary adjustment

Installation of band drains, Question For drained reclamation, what wil...

Question For drained reclamation, what will significance of smear zone bring by installation of band drains ? Answer Throughout installation of band drains, smear zon

Principle of airlifting for cleaning pile bores, Q. Principle of airlifting...

Q. Principle of airlifting for cleaning pile bores? Airlifting is generally carried out before concreting to remove debris and clean the base of pile bores. It basically acts a

Shape factor, For a solid circular shaft transmitting torque, the shape fac...

For a solid circular shaft transmitting torque, the shape factor is

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