Main principle of post-grouting for mini-piles, Civil Engineering

Assignment Help:

Question

What is main principle of post-grouting for mini-piles?


Answer

During course of post-grouting, a tube with a hole at its base is lowered into pile and grout is injected. Device of post-grouting is as follows- pressurized grout is at first confined by hardened grout and is able to hardly get away. Then, it ruptures grout cover and makes its way to surrounding soils and into soft regions to expand an interlock with harder soil zones. In order to improve pressurized grout to rupture initial grout depth, an utmost time limit is usually imposed between time of initial grouting and time of post-grouting to keep away from development of high strength of initial grout.
So, effect of soil disturbance by putting in of casings and subsequent lifting up of casings will be lessened appreciably.

 


Related Discussions:- Main principle of post-grouting for mini-piles

What is the safe bearing capacity of a rectangular footing, What is the saf...

What is the safe bearing capacity of a rectangular footing, 1 m × 2 m, placed at a depth of 2 m in an saturated clay having unit weight of 20 kN/m 3 and unconfined compression str

Determine about the tensile stresses, Determine about the tensile stresses ...

Determine about the tensile stresses Unifody prestressed members designed for equal flexure in opposite directions,without permitting tensile stresses under working loads, requ

Foundation, write the types of foundation for black cotton soil and exxplin...

write the types of foundation for black cotton soil and exxplin with drowing?

Test on complete bearings, Q. Test on complete bearings? Two bearings s...

Q. Test on complete bearings? Two bearings should be selected at random from the 'lot'. Various tests should be conducted on these 'test bearings'. These bearings should be exc

Concrete, what are the appropriate methods of concreting

what are the appropriate methods of concreting

Determine the uses of screw connectors, Determine the uses of Screw connect...

Determine the uses of Screw connectors Screw connectors are normally used  to splice large-diameter high-tensile strength bars. The bars are threaded at the ends and a sheet-me

Compaction, describe how quality control is maintained in a rolled fill dam...

describe how quality control is maintained in a rolled fill dam

Calculate the actual water cement ratio, Calculate the Actual Water Cement ...

Calculate the Actual Water Cement Ratio A jobsite delivery ticket is shown below for a grout mix.  The actual w/c ratio is most nearly: Solution:       Note, althou

Designing of service reservoirs, Question In designing of service res...

Question In designing of service reservoirs , straight reinforcement in walls of reservoirs is placed at external layer. Give some specific and main reasons?   Answer

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