Where the subsoil is of firm, shrinkable clay which is subject to volume change due to deep rooted vegetation for some depth below surface and where the subsoil is of soft or uncertain bearing capacity for some few metres below surface, it may be economic and satisfactory to use a system of short bored piles as a foundation.
Piles are concrete columns which are either precast and driven (hammered) into the ground or cast in holes that are augered (drilled) into the ground down to a level of a firm, stable stratum of subsoil.
The piles that are used as a foundation down to a level of some 4 m below the surface for small buildings are termed short bore, which refers to the comparatively short length of the piles as compared to the much longer piles used for larger buildings. Short bored piles are generally from 2 to 4 m long and from 250 to 350 mm diameter.
Holes are augered in the ground by hand or machine. An auger is a form of drill comprising a rotating shaft with cutting blades that cuts into the ground and is then withdrawn, with the excavated soil on the blades that are cleared of soil. The auger is again lowered into the ground and withdrawn, cleared of soil and the process repeated until the required depth is reached.
The advantage of this system of augered holes is that samples of the subsoil are withdrawn, from which the bearing capacity of the subsoil may be assessed. The piles may be formed of concrete by itself or, more usually, a light, steel cage of reinforcement is lowered into the hole and concrete poured or pumped into the hole and compacted to form a pile foundation.
The piles are cast below angles and intersection of load bearing walls and at intervals between to reduce the span and depth of the reinforced ground beam they are to support. A reinforced concrete ground beam is then cast over the piles as illustrated in Fig. 10. The ground beam is cast in a shallow trench on a 50 mm bed of ash with the reinforcement in the piles linked to that in the beams for continuity. The spacing of the piles depends on the loads to be supported and on economic sections of ground beam.
Fig. 10 Short bored pile foundation.
22 comentarios:
This is very nice information about bored pile
I am very happy to read your article, it would be my reference to improve our work.
Thank you.
http://www.arsitek-banten.com/
If you compare bored pile with raft foundation, what will be strength wise better option?
I like being busy and juggling a lot of things at the same time. I get bored easily, so I need to do a lot. See the link below for more info.
#bored
www.ufgop.org
very splendid indeed
Auger filler machine is taking place in future which will be the best for making work more easy than before. This is exact fine info about bored.
Would anybody please let me know 'what is the minimum length to diameter ratio of a short pile?'
Nice article
Don Doleshal
When I originally commented I clicked the -Notify me when new comments are added- checkbox and now each time a comment is added I get four emails with the same comment. Is there any way you can remove me from that service? Thanks!
Asphalt Companies Sydney
Great Piece. Visit again . https://pilecapinc.com/resource-center/videos/
thanks admin
This blog was really helpful. Thank you for your information keep posting contiguous piling
At Basement Bro, a Basement Finishing Experts & Basement Renovations Contractors, we see an unfinished basement as unfinished business. Enter our team — certified home building professionals who specialize in remodeling and repairing commercial and residential basements of all sizes, styles and configurations. Let us take care of your renovation or construction. If required, we have the tools to finance project of any size and budget. basement bro
At Basement Bro, a Basement Finishing Experts & Basement Renovations Contractors, we see an unfinished basement as unfinished business. Enter our team — certified home building professionals who specialize in remodeling and repairing commercial and residential basements of all sizes, styles and configurations. Let us take care of your renovation or construction. If required, we have the tools to finance project of any size and budget. basement bro - basement renovations expert Toronto
Thanks for sharing...Builders in Chennai
Civil contractors in chennai
Corpus Christi TX Foundation Repair Company Thanks for a very interesting blog. What else may I get that kind of info written in such a perfect approach? I’ve a undertaking that I am simply now operating on, and I have been at the look out for such info.
Miami FL Foundation Repair Company When your website or blog goes live for the first time, it is exciting. That is until you realize no one but you and your.
Are you looking for the best Piling South London. We offer complete range of construction package. And we are the number one construction company in all over the england.
Thank you share your blog Bored Pile Foundation Dealing with building contractors is one of the most difficult jobs to perform. The companies that provide the best construction-related services charge a pretty penny from their clients. Finding a construction company in the Philippines that provides everything according to your choice, works professionally, and does not charge much money.
Great your blog is very nice and interesting. and Piling Wembley provide a services of construction in united kingdom.
this blog is very interesting and great because of that it contain a knowledgeable information. and Mini Piling Hertfordshire is a small family run business offering a professional and expert service of piling and groundwork throughout Essex, Hertfordshire and London.
Great! your blog is very interesting and informative. If your are looking for these best Piling South London services. Our company provides the best services in United Kingdom.
Post a Comment