Facebook tracking pixel

Secant piled wall using segmental casing


Overview
The purpose of this standard is to provide the candidate with details of why and how segmental casing is used in the construction of secant piled walls. This standard was previously called Using segmental casing, extractors and ocsillators for secant piled wall construction.

CITB has developed this standard in discussion with industry

Duration

Minimum 1 day of 6 learning hours

Purpose/scope

The purpose of this standard is to provide the candidate with details of why and how segmental casing is used in the construction of secant piled walls.

 

Scope:

  • basement & substructure design principles
    • basement grade & water tightness
    • propping
  • secant wall design principles
    • basement depth and retained height
    • secant wall type (hard/hard, hard/firm, hard/soft)
    • reinforcement
    • concrete mix design
  • general methodology of installation
    • tolerances and how to achieve them in relation to: guide-wall construction, plan position, verticality, casing length.
    • sequencing
    • use of extractors
    • use of oscillators
    • casing type, maintenance & management
    • associated risks

Occupational relevance

Training delivered against this standard would be relevant to the following occupational groups:

  • supervision
  • management and supervision.

Candidate pre-requisites

A basic knowledge of piling techniques is required.

Instruction/supervision

As a minimum, course instructors must be able to demonstrate that, in relation to this standard, they have:

  • A train the trainer or instructional techniques course certificate
  • Successfully completed training to this standard 
  • At least 2 years relevant industrial experience
  • A verifiable CV.

Delivery

Delivery may be in an on or off the job environment.

All materials and equipment must be of a suitable quality and quantity for candidates to achieve learning outcomes, and must comply with relevant legislation.

The class size and candidate/instructor ratio must allow training to be delivered in a safe manner and enable candidates to achieve the learning outcomes.

The following delivery methods may be used in the delivery of this standard:

  • classroom
  • a blend of classroom and e-learning

This standard is considered to contain 51 per cent or more theoretical learning.

Assessment

For the successful completion of training, candidates must complete an end of course practical assessment or knowledge test that measures the learning outcomes and has a pass or fail criteria.

Quality assurance

Quality assurance against this standard will require initial approval of the training organisation and their content mapped to the standard. 

CITB will also conduct an approval intervention, either desk-based or centre visit, to ensure the training organisation can meet the requirements of the Training Standard. 

Approved training organisations (ATOs) will be required to present information on records of training and assessment upon request to CITB for desk-based analysis. They will also be visited annually by the CITB quality assurance team.

Renewal/refresher

There are no mandatory renewal or recommended refreshment requirements for this standard.

Approval date

November 2018

Review cycle

Either on request or in 3 years from approval date.

Learning outcomes

The candidate will be able to Additional guidance to support learning outcome

Describe how and why basements are constructed in the modern environment

 

Describe the basic principles of a retaining structure to form a basement

 

Describe types of secant piled wall and the differences between them

 

Describe how required tolerances are achieved and the impact that they can have on basement construction

ICE Specification for Piling & Embedded Retaining Walls

Outline the importance of construction sequencing for secant walls

 

Explain how and why casing extractors and oscillators are used

 

Outline of how and why casing management and maintenance is important

 

Identify the main safety risks associated with secant piled wall construction

 

Additional information about this standard

See the Institute for Civil Engineers publication: Specification for Piling and Embedded Retaining Walls, ICE, Third Edition

Share