Structural load
Dead, live and equipment loads gather at each column. The foundation has to carry them without unacceptable settlement.
- Dead load
- Live load
- Equipment
- Home
- Piling & Deep Foundations
Pillar A Deep foundations & piling
Loads above.Engineering below.
Bored and micro piles that carry structural load into suitable ground — engineered systems, not just holes. For buildings, industrial structures, infrastructure, bridges and heavy structures, and difficult ground.
- Buildings
- Industrial structures
- Infrastructure
- Bridges & heavy structures
- Difficult ground
Load path Scroll to follow the load
From structure
to ground.
Load Stage
The pile cap
The cap ties the pile group together and spreads every column load across the piles beneath it.
- Load spreading
- Pile group
- Column dowels
Shaft & reinforcement
A bored pile is a reinforced-concrete column cast in the ground: a cage of vertical bars and rings inside a concrete shaft. Diameter and length come from the design.
- Reinforcement cage
- Concrete shaft
- Ø 200 – 2000 mm
Skin resistance
Along the shaft, friction between concrete and soil carries part of the load. Each soil layer contributes differently.
- Shaft friction
- Layer by layer
- Load transfer
End bearing
At the toe, the pile bears on competent strata — or is socketed into rock where the design calls for it.
- Founding strata
- Rock socket
- End bearing
The foundation system
Structure, cap, shaft, soil and rock work as one path. Each stage is drilled, reinforced and cast to specification.
- Structure → cap
- Shaft → ground
- One load path
Illustrative load path. Pile design, capacity and testing are set by the project's structural and geotechnical engineer; Samar executes to that design.
Scale Pile diameter, drawn to scale
200 to 2000.
See the difference.
Five cross-sections on one scale — from a 200 mm micro pile to a 2000 mm bored pile. The reinforcement cage grows with the shaft.
Plan view · true relative scaleCage illustrative
Overlaid on one scaleØ in mm
Methods Five ways to go deep
The method follows
the ground.
Select a method. Ground, access and load decide which one is right — we confirm against soil data before drilling.
Documented in work orders
Micro / DTH / ODEX
Compact drilling for restricted sites. ODEX advances casing together with the bit through boulders and collapsing ground; a DTH hammer drives through rock.
Suited to
- Boulders, cobbles and mixed fill
- Rock and weathered rock
- Restricted access and headroom
Process
- Compact rigs
- Casing advanced with the bit (ODEX)
- Air-hammer penetration in rock (DTH)
Diameter · indicative
200 mm2000 mm
Small diameter · Underpinning · retrofits · tight urban plots
Capability
Auger Piling
A rotating auger bores and lifts spoil on its flights. Fast, clean cycles wherever the soil will stand open without support.
Suited to
- Cohesive and stiff soils
- Above the water table
- Open, accessible sites
Process
- Continuous rotation
- Spoil lifted on the flights
- No drilling fluid needed
Diameter · indicative
200 mm2000 mm
Small to medium · Housing · low-rise · boundary and retaining piles
Capability
DMC · Mud Circulation
Drilling fluid is pumped down the drill string and returns carrying cuttings, holding the bore wall where the ground will not stand open.
Suited to
- Loose and collapsing sands
- Below the water table
- Deep, unstable profiles
Process
- Fluid pumped through the drill string
- Cuttings carried to a settling pit
- Bore wall held by fluid pressure
Diameter · indicative
200 mm2000 mm
Medium to large · Deep bored piles in unstable ground
Capability
Rotary Piling
A rotary head on a heavy drill string, fitted with tools chosen for the formation - the workhorse for large diameters and hard strata.
Suited to
- Mixed strata to hard rock
- Deep founding levels
- Large diameters
Process
- Heavy drill string and rotary head
- Tooling changed to suit the formation
- Rock socketing where designed
Diameter · indicative
200 mm2000 mm
Large diameter · Heavy structures · bridges · industrial plant
Capability
Hydraulic Method Piling
Hydraulic power rotates and presses casing ahead of the bore, keeping it supported and vertical in variable or water-bearing ground.
Suited to
- Variable and water-bearing ground
- Sensitive neighbouring structures
- Tight verticality tolerances
Process
- Casing-supported bore
- Controlled force and verticality
- Lower disturbance to surroundings
Diameter · indicative
200 mm2000 mm
Medium to large · Sensitive sites · variable ground
Anatomy Inside a bored pile
Steel and concrete,
working as one.
Execution One pile, seven stages
From point
to finished pile.
- 01
Mobilise
Rig, casing and materials to site; access and safety set up.
- 02
Position
Rig set over the surveyed pile point and the mast plumbed.
- 03
Drill
Bore advanced by the method the ground demands.
- 04
Stabilise
Temporary casing or drilling fluid holds the bore open.
- 05
Cage
Reinforcement cage lowered to the design level.
- 06
Concrete
Concrete placed by tremie from the base upward.
- 07
Test / hand over
Checks per specification; records handed over.
Stabilise adapts to the method: temporary casing for ODEX and hydraulic-method piling, drilling fluid for DMC, none where the soil stands open (auger). Test scope follows the project specification.
Plant Foundation machinery
Rigs, cages
and support.
Applications What the foundation must do
Where deep
foundations earn it.
Industrial plants
Heavy equipment, tanks and process structures on filled or mixed ground, where settlement control matters.
Methods usually considered
Multi-storey & commercial buildings
Concentrated column loads, basements and close neighbouring structures.
Methods usually considered
Bridges & heavy civil works
Large diameters, high axial and lateral loads, river and water-bearing ground.
Methods usually considered
Infrastructure
Viaduct and flyover piers, abutments and retaining works along linear corridors.
Methods usually considered
Tanks & utility structures
Elevated tanks, treatment units and utility structures with heavy, concentrated loads.
Methods usually considered
Weak & difficult ground
Fill, loose sand, boulders and high water tables where shallow foundations are unsafe.
Methods usually considered
Method selection is confirmed against soil investigation data and the structural design.
Enquiry BOQ · RFQ · Site requirement
Planning your next foundation or groundwater project?
Send the BOQ, drawings or a few lines on the site. We respond directly.
Upload / Share BOQ on WhatsApp- WhatsApp+91 88909 90863
- Call+91 88909 90863
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- Emailsamarapsarainfratech56@gmail.com
- OfficeNear Royal Enfield Showroom, Tijara Road, Shiv Colony, Alwar, Rajasthan 301001