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

State the term - constant eccentricity, State the term - constant eccentric...

State the term - constant eccentricity A pre-stressed concrete beam has a width of 300 mm and an overall depth of 450 mm. The permissible stresses in tension and compression du

Roads, wbm road step by step procedure

wbm road step by step procedure

Cement testing, explain the importance of following standard procedure

explain the importance of following standard procedure

Chemical analysis of fe 415., in this chemical analysis what is the meaning...

in this chemical analysis what is the meaning of c% and s% and P%

Inadequate pile founding level, Reasons of common occurrence of "inadequate...

Reasons of common occurrence of "inadequate pile founding level" in piles of piers The most severe load on piers usually is the horizontal load owing to berthing and mooring o

What is the safe bearing capacity of wide strip footing, A loading test was...

A loading test was conducted with a 300 mm square plate at depth of 1 m under the ground surface in pure clay deposit. The water table is situated at a depth of 4 m below the groun

Soil Mechanics, What relationship between Atterberg limits and cohesion

What relationship between Atterberg limits and cohesion

Doors and windows, important considerations in case doors and windows

important considerations in case doors and windows

State average increase of pressure in the clay stratum, A building was to b...

A building was to be constructed on a clay stratum. Preliminary analysis showed a settlement of 60 mm in 6 years and an ultimate settlement of 250 mm. The average enhance of pressu

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