What do you mean by piston sampler, Civil Engineering

Assignment Help:

Q. What do you mean by Piston sampler?

In sampling silts orclays, Piston sampler is lowered into boreholes and piston is locked at bottom of the sampler. This stops debris from entering the tube prior to sampling. After reaching the sampling depth, piston is unlocked so that piston stays on top of the sample going into the tube. Prior to withdrawal of the sampler, piston is locked to prevent the downward movement and vacuum generated during movement of the piston from sampler's end aids in retaining the samples recovered. Sample recovery is increased by using Piston samplers.


Related Discussions:- What do you mean by piston sampler

Wet mix macadam - road pavements, Wet Mix Macadam: For heavily traffi...

Wet Mix Macadam: For heavily trafficked highways, the granular bases are constructed using Wet Mix Macadam (WMM). The WMM is a specification in which well graded aggregate is

Collapse mechanisms in unsymmetrical portal frames, How to find beam,sway a...

How to find beam,sway and combined mechanisms for unsymmetrical portal frames? Also how to find the critical mechanisms by using plotting method?

Desirable properties of bitumen, Desirable Properties of Bitumen: For...

Desirable Properties of Bitumen: For performing as a good binder for road works, bitumen should have the following desirable properties: (a) When heated to the mixing temp

Structural analysis, steps to analysis a portal frame with sway condition

steps to analysis a portal frame with sway condition

Introduction to engineering mechanics, Deternim the angle A for which the m...

Deternim the angle A for which the moment of the 500N force is maximum about a point o. also find the maximum momentum

Steel and timber structures, design a tension member subjected to a pull of...

design a tension member subjected to a pull of 300KN using a channel section. the length of a joint available is only 400mm.check the condition of using lug angle for end connecti

School building, from surveying to school building finish

from surveying to school building finish

Mechanism of taking up loads for concrete paving blocks, Mechanism of takin...

Mechanism of taking up loads for concrete paving blocks  Paving for concrete blocks comprises closely packed paving blocks in pre-determined patterns and tiny joint spaces bet

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