Vibration & Impact Driving Solutions

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Vibration Driving Solutions

This is a particularly fast and economical method of installation with a wide range of vibratory hammers available for a variety of base machines. Loose to medium dense cohesionless soils provide the best ground for vibro-driving. Whilst vibration and noise occur, this can be kept to a minimum provided the correct choice of hammer is used. When site conditions stipulate that a vibrationless method of installation is required, Ivor King can offer a range of silent, vibration-free installation methods.

Ivor King utilise three main types of vibro-hammers operated from three different types of plant:

  • Excavators with Movax Vibratory Hammer Attachments
  • Telescopic Leader Rigs with Vibratory Hammer Attachments
  • Crawler Cranes with Suspended Vibro-Hammers

Ground Conditions and use of Vibratory Hammers

The soils best suited to vibration work are non-cohesive soils, i.e. gravel or sand, provided that the soils are not too dense. In cases where SPT (Standard Penetration Test) N-values of over 50 are present, vibro-driving will be difficult. Pre-augering prior to vibro-driving piles and water jetting whilst vibro-driving piles can be utilised to loosen dense soil.  Vibratory hammers operating at higher amplitudes are normally effective in more difficult soils.

Clay soils have a dampening effect and reduce the effectiveness of the energy transferred to the pile. Vibratory driving is therefore difficult where firm or stiff clay soils are encountered. High amplitude hammers are likely to yield the best results in such conditions.  Should the vibratory hammer reach a refusal rate of less than 75mm of pile penetration per minute, Impact Driving can be used to progress the piles further (see below).

Our vibration hammers can be operated at various settings to suit different pile and ground conditions and can also be fitted with digital recording devices to help monitor pile installation.

 

Benefits & Advantages of Vibration Driving Solutions

  • Fast and economical solution most suited to loose or cohesionless soil conditions
  • Capable of reducing noise and vibration output
  • Single or double hammer size options available, adaptable to suit the size of rig and/or any site restrictions
  • Adaptable for use with small excavators
  • Can be efficiently used to extract piles
  • Digital reporting to monitor pile installation

Impact Driving Solutions

This is an excellent method for driving sheet piles into difficult ground or final driving of piles to level in panel form. With the correctly selected and sized hammer, it is the most cost effective solution for completing pile penetration into hard soils.

We can provide suitable Impact Hammer attachments which can fit to the same base machines as our Vibratory Hammers. Therefore, the quick change between vibratory and impact hammers ensures efficient and cost-effective site working.

This solution is relatively noisy and generally unsuitable for sensitive or restricted sites. The overall driving time is usually longer than when using a vibratory hammer.

Impact Hammers  

Impact Hammers are used to deliver a blow from the ram. We have a range of hydraulic single and double acting hammers that can be used on single piles, or pairs of piles. They are particularly suited for driving U and Z piles in hard ground conditions and to penetrate very dense sands, gravels and, to a certain extent, rock.

Controls, Settings and Efficient Monitoring  

Our impact hammers can be operated on different settings to suit varying pile profile and ground conditions. For example, a heavy ram weight ratio hammer on wide piles can be used with a low setting to suit driving into clay, whilst double acting hammers on a rapid blow setting can be used to drive single piles into dense sandy soils. Our impact hammers can also be fitted with digital recording devices to help monitor the sheet pile installation.

Benefits & Advantages of Impact Driving Solutions

  • Cost effective approach for driving sheet piles into hard or difficult ground conditions
  • Single or double hammer size options available that are adaptable to suit the size of rig and/or any site restrictions
  • Hydraulic hammers are environmentally efficient and the process is less likely to damage the head of the pile when transmitting the driving force
  • Suitable for prolonged driving in thick clay strata
  • Digital reporting to monitor pile installation

Our Vibration & Impact Piling Equipment and Rig Specification Guide

Sheet pile installation using our Hitachi Zaxis 350 Movax Piling Rig with SG-75 attachment | Ivor King

Hitachi Zaxis 350

(with Movax SG75)

View Spec
Sheet pile installation using our JCB JS360 with Movax SP70 | Ivor King

JCB JS360

(with Movax SP70)

View Spec
Sheet pile installation using our Movax Piling Rig Doosan DX210 W with SG/SP50 attachment | Ivor King

Doosan DX210W

(with Movax SG/SP50)

View Spec
Movax Piling Rig Doosan DX340LC with SPH-80 attachment | Ivor King

Doosan DX340

(with Movax SPH80)

View Spec
Sheet pile installation using our Movax Piling Rig Doosan DX255 | Ivor King

Doosan DX255

(with Movax SG/SP50)

View Spec
Sheet pile installation using our ABI TM 13/6-SL Telescopic Leader Rig | Ivor King

ABI TM 13/16 SL

Telescopic Leader Rig

View Spec
ABI TM14/17B Telescopic Leader Rig | Ivor King

ABI TM 14/17 B

Telescopic Leader Rig

View Spec
Sheet pile installation using our ABI TM 14/17 V Telescopic Leader Rig | Ivor King

ABI TM 14/17 V

Telescopic Leader Rig

View Spec
Sheet pile installation using our RTG RG21T Leader Rig | Ivor King

RTG RG21T

Telescopic Leader Rig

View Spec
Heavy Duty Telescopic Crawler Crane IHI-CCH300 | Ivor King

IHI CCH300T

30 Tonne Telescopic Crawler Crane

View Spec
Hydraulic Heavy Duty Telescopic Crawler Crane IHI CCH500T | Ivor King

IHI CCH500T

50 Tonne Telescopic Crawler Crane

View Spec
Hydraulic Heavy Duty Telescopic Crawler Crane IHI DCH700 | Ivor King

IHI DCH700

70 Tonne Lattice Boom Crawler Crane

View Spec