Screw Piles

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Advanced Mini Piling systems Ltd.

History of the Helical Screw Pile

The basic principle of the screw pile was first developed in England by an Irish engineer in the 1900’s to stabilise lighthouses. Utilising the same idea, we start off with a lead section, with a number of helix’s on, (depending on load) screwing the Pile down, until the permitted torque kN is attained. If this is not the case, we continue to add sections via bolting the spigot end to the socket cap end of Pile section, screwing the pile down into the underlying strata until our design torque kN or depth M is reached.

 

60mm Round Shaft

Maximum installation torque kN

2.0

Ultimate material strength for axially loaded foundations

80

Pile capacity at maximum permitted torque kN

60

Torque limited kN with 2.0 safety factor

30

Ultimate strength per helix Tension/Compression kN

45

Working capacity per helix Tension/Compression kN with 2.0 safety factor

23

 

60mm Round Shaft Heavy Duty

Maximum installation torque kN

4.0

Ultimate material strength for axially loaded foundations

155

Pile capacity at maximum permitted torque kN

120

Torque limited kN with 2.0 safety factor

60

Ultimate strength per helix Tension/Compression kN

90

Working capacity per helix Tension/Compression kN with 2.0 safety factor

45

 

38mm Square Shaft

Maximum installation torque kN

9.5

Ultimate material strength for axially loaded foundations

300

Pile capacity at maximum permitted torque kN

300

Torque limited kN with 2.0 safety factor

150

Ultimate strength per helix Tension/Compression kN

180

Working capacity per helix Tension/Compression kN with 2.0 safety factor

90

 

45mm Square Shaft

Maximum installation torque kN

13.5

Ultimate material strength for axially loaded foundations

440

Pile capacity at maximum permitted torque kN

440

Torque limited kN with 2.0 safety factor

220

Ultimate strength per helix Tension/Compression kN

220

Working capacity per helix Tension/Compression kN with 2.0 safety factor

110

 

89mm Round Shaft

Maximum installation torque kN

25

Ultimate material strength for axially loaded foundations

700

Pile capacity at maximum permitted torque kN

560

Torque limited kN with 2.0 safety factor

280

Ultimate strength per helix Tension/Compression kN

220

Working capacity per helix Tension/Compression kN with 2.0 safety factor

110

60mm Round Shaft 60mm Round Shaft Heavy Duty 38mm Square Shaft 45mm Square Shaft 89mm Round Shaft
Maximum installation torque kN 2.0 4.0 9.5 13.5 25
Ultimate material strength for axially loaded foundations 80 155 300 440 700
Pile capacity at maximum permitted torque kN 60 120 300 440 560
Torque limited kN with 2.0 safety factor 30 60 150 220 280
Ultimate strength per helix Tension/Compression kN 45 90 180 220 220
Working capacity per helix Tension/Compression kN with 2.0 safety factor 23 45 90 110 110

Advanced Mini Piling systems Ltd.

Helical Screw Pile Systems

Advanced Mini Piling Systems can install a varied range of helical screw pile systems, with sizes ranging from 38mm square shaft and 60mm round shaft, which are installed by hand, micro digger or any other hydraulically powered equipment, to larger diameters exceeding 600mm in diameter, which needs 30t excavator with a torque head of over 300kNM.The range of screw piles we provide can be installed, with varying sizes of machine. Depending on the foundation system required and the impact on the surrounding environment. We can install helical screw piles with machines as small as 750kg and as large as 30t depending on the compression and tension of the required load. each project is individually designed by our engineers and the screw piles are designed to suit your projects criteria, when designing your project, our experienced team will visit site, factor in access, time schedule, ground conditions and cost, which will provide you with the most economical solution to your foundation requirements. Applications for helical screw pile systems: underpinning, new build foundation support, road side structures, rail side structures, LV/ HV power industry and telecom industry.

For more information on our Piling Systems and Services or helpful advice please Contact us.   

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