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

Difference between road gullies and catch pits, Q. Difference between road ...

Q. Difference between road gullies and catch pits? Both road gullies and catchpits are the two fundamental types of drainage inlets of drainage system. However they are designe

State the short term effects of concrete, State the Short Term Effects of c...

State the Short Term Effects of concrete These are various types of effects produced, nearly instantaneously, due to the application of external loads on structures. An example

Binder, Binder: Normally 60/70 penetration grade, and provides cohesio...

Binder: Normally 60/70 penetration grade, and provides cohesion to the mixture and increases its stability. The mix design is done by the Marshall test, in which a specimen

Determine the hydraulic radius for rectangular open channel, Determine the ...

Determine the hydraulic radius R for a rectangular open channel with dimensions of 6 ft wide and 4 ft high (side walls) flowing at a depth of 3 ft. Solution: R = A/P Cross-s

How to design shape of guide bunds, Q. How to design Shape of guide bunds? ...

Q. How to design Shape of guide bunds? Alignment of guide bunds converging on the upstream was considered by Bell, Spring and Gales to allow for the waterway obstructed by pier

Lifting of girders, Q. Lifting of girders? Lifting of girders : For gre...

Q. Lifting of girders? Lifting of girders : For greasing the bearings girders are required to be lifted. But the gap between the bottom flange of plate girders and the bed bloc

Dynamics, A vehicle for landing on the moon has a mass of 4500kg. The dampe...

A vehicle for landing on the moon has a mass of 4500kg. The damped spring undercarriage system of the vehicle has a stiffness of 450kn/m and a damping ratio of 0.2. The rocket lift

Example for beam flexure design, Example for Beam Flexure Design Select...

Example for Beam Flexure Design Select the lightest W section for the simply supported beam shown below.  The beam length is 12ft.  The nominal loading is: w d = 4.0 kip/ft (i

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