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

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

Define underwater magnetic particle testing, Define Underwater Magnetic Par...

Define Underwater Magnetic Particle Testing? Underwater magnetic particle testing (UWMT) is a non-destructive testing suited for detection of surface cracks or discontinuities

Elongation, Elongation of bar due to self weight

Elongation of bar due to self weight

Is codes for building design, IS CODES FOR BUILDING DESIGN The codes w...

IS CODES FOR BUILDING DESIGN The codes which help engineers to design buildings are following: 1. IS 456-2000. For the design of plain and reinforced concrete it is code

Surface cleaning tools for underwater inspection of bridge, Define Surface ...

Define Surface Cleaning Tools for Underwater Inspection of Bridge? To perform a thorough inspection, the marine growth on the structure must be removed. This can be done by var

Design Mix M35/C35, What is the actual mix propotion for M35/ C35 design mi...

What is the actual mix propotion for M35/ C35 design mix concrete

Varignon theorem, how to prove varignon theorem in easiest way

how to prove varignon theorem in easiest way

Strength of materials, distribution of shear stress in triangular section

distribution of shear stress in triangular section

CUBE STRENGTH, IN CASE CUBE IS FAIL WHAT CAN IDO

IN CASE CUBE IS FAIL WHAT CAN IDO

Compute the degree of saturation, The maximum dry density and optimum moist...

The maximum dry density and optimum moisture content of a soil from standard proctor's test are 18 kN/m 3 and 16% respectively. Compute the degree of saturation of the sample,

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