What is core-barrel samplers, Civil Engineering

Assignment Help:

Q. Core-barrel samplers: single tube sampler vs. double tube sampler vs. triple tube sampler

Core barrel samplers are initially designed to sample rock. In single tube sampler, core barrel of sampler rotates and this poses the possibility of disturbing sample by shearing the sample along certain weak planes. Furthermore cored samples are subjected to erosion and disturbance by the drilling fluid. 

For double tube samplers, tube samplers don't rotate with the core barrels and samplers aren't protected against the drilling fluid. Logging of samples represents difficulty for highly fractured rock. Triple core barrel fundamentallycomprises a double core barrel sampler including an addition of a stationary liner that is intended to protect the cored samples at the time of extraction. Consequently the quality sample attained from triple core barrel is the best among the 3 kinds of barrels mentioned above.


Related Discussions:- What is core-barrel samplers

Benchmark, 1. Where permanent bench of india located ? 2. use of Permanent ...

1. Where permanent bench of india located ? 2. use of Permanent BenchMark ?

Load transmission, • The transmission of load through a structure can be co...

• The transmission of load through a structure can be complex but in any particular case            - The applied load can usually be classified into 4 types                •

Hydraulics, A rectangular channel, 20ft wide is shown. The channel consists...

A rectangular channel, 20ft wide is shown. The channel consists of three reaches of different slopes. The channel has a roughness coefficient of n=0.015 and carries a discharge of

Explain subcritical flow and supercritical flow, Explain Subcritical flow a...

Explain Subcritical flow and Supercritical flow Subcritical flow: The depth of flow is greater than critical depth and the velocity of the fluid is slow. Also termed "tranquil"

Stacking of materials for building, briefly explain the stacking of materia...

briefly explain the stacking of materials in the site for general building?

Moment distribution, Moment Distribution: You have learnt about moment...

Moment Distribution: You have learnt about moment distribution procedure after deriving the slope deflection equation for the members. The concepts of distribution factor and

Afflux in rivers with non scourable bed, Q. Afflux in rivers with non scour...

Q. Afflux in rivers with non scourable bed? Afflux is defined as rise of flood level of the river upstream of a bridge as a result of the obstruction to natural flow caused by

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