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

Verify the earth pressure at rest, A retaining wall, 6 m high, retains dry ...

A retaining wall, 6 m high, retains dry sand with an angle of friction of 30° and unit weight of 16.2 kN/m 3 . Verify the earth pressure at rest. If the water table rises to the to

Rehabilitation of Concrete Roads, Step by step rehabilitation strategies wi...

Step by step rehabilitation strategies with drawing, figures, and illustrations

Define the usage of data from hydrographs, Define the usage of Data from Hy...

Define the usage of Data from Hydrographs Flow rates and volume quantities over time. Predictions based on the runoff flow rates. The characteristics of the drainage b

Sewerage, what is the manhole to manhole joining preferences? why it is joi...

what is the manhole to manhole joining preferences? why it is joined crown to cron, not crown to invert?

Define fatigue load test of shock transmission unit, Define Fatigue load te...

Define Fatigue load test of shock transmission unit? This test was carried out for 100,000 cycles for maximum capacity of STU, assuming the worst case that the 'Lock Up Load' i

Transportation, investigation of strength properties of black cotton soil s...

investigation of strength properties of black cotton soil stabilised with fly ash and georeinforcement

Define design aspects of pot bearing, Define Design Aspects of Pot Bearing?...

Define Design Aspects of Pot Bearing? Basic elements of a POT bearing are: - POT or a shallow cylinder - An elastomeric pad - A set of sealing rings - A piston P

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