11094 search results:

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Functional description of the forces of jacking stations)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Functional description of the jacking forces at individual pipe joints)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Stress-strain diagramme for a pressure transfer ring of soft wood)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

The choice of the modulus of elasticity of the pressure transfer ring is of high relevance for the calculation according to ATV A 161.

There is no explanation concerning the height of the modulus of elasticity in ATV A 161.

The modulus of elasticity must include the hardening of the pressure transfer ring.

(Image: Compression behaviour of a pressure transfer ring made of wood for several E-modules)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Video: Calculation in the direction of the pipe axis: stress distribution at the pressure transfer ring during pipe jacking)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: CoJack calculation algorithm)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Sequential computing of compression of the pressure transfer ring) (Image: Sequential computing of stress of the pressure transfer ring)
(Image: Sequential computing of remaining thickness of the pressure transfer ring)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Maximal contact stress at a specific pipe joint in jacking sequence)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Structural safety in the jacking sequence)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Development of the contact stress in a jacking sequence - 1)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Development of the contact stress in a jacking sequence - 2)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Development of the contact stress in a jacking sequence - 3)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Development of the contact stress in a jacking sequence - 4)

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Calculation method

(Image: Development of the contact stress in a jacking sequence - 5)

Aug 23, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Application areas of optimised jacking calculations

Application area of CoJack:

  • Within the scope of planning it serves to test the structural calculation and the determination of the safety level under the defined conditions (planning data).
  • Within the scope of construction supervision, the jacking data used in planning are constantly replaced by the measurement values (jacking forces, geometric measurements) recorded at the construction site.
  • Within the scope of the approval of the construction, …

Feb 01, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Application areas of optimised jacking calculations

(Image: CoJack - sequence diagramm of simulation)

Feb 01, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Application areas of optimised jacking calculations

(Image: Attention!)

Relevant important improvements compared to the previously used structural calculation methods for pipe jacking:

  • Determination of the level of safety at every point of time
  • Determination of the load reserves at every point of time
  • Detailed parameters for the execution of the construction with updates accompanying the jacking
  • Controlled use of increased jacking forces, if required
  • Improved documentation and quality control

Aug 23, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Jan 25, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Summary

(Image: Procedure of the online-simulation of pipe jacking)
  • Recording of the measured data of the jacking on the construction site.
  • Transmission of the data to the supervising engineering consultant office via the internet.
  • Simulation of the jacking on the basis of the data and determination of the modified requirements of the jacking if necessary.
  • Transmission of the modified requirements to the construction site via the internet.
  • Adjustment of …

Aug 23, 2005

Modules

Mathematical Simulation of Pipe Stresses for Difficult Jackings

Feb 08, 2005

Modules

The presentation shows the new calculation program "Co-Jack" (Computing and Controlling Pipe Jacking) for a structural simulation of pipe jackings.

May 27, 2013

Course

This course includes tutorial services and a final examination.

Cleaning is one of the most important maintenance measures when it comes to ensuring a continuous performance of drainage systems. This module covers essential knowledge regarding the cause and effect of deposits, and provides a strategic approach to the development of a cleaning plan that enables for the optimisation of operating costs and in particular asset preservation.

The course consists of 4 Modules on the following topics:

  • Solids in sewers
  • Cleaning strategy and program
  • High pressure cleaning / Cleaning vehicles
  • Cleaning nozzles

May 01, 2013

Course

This course includes neither tutorial services nor a final examination.

Cleaning is one of the most important maintenance measures when it comes to ensuring a continuous performance of drainage systems. This module covers essential knowledge regarding the cause and effect of deposits, and provides a strategic approach to the development of a cleaning plan that enables for the optimisation of operating costs and in particular asset preservation.

The course consists of 4 modules on the following topics:

  • Solids in sewers
  • Cleaning strategy and program
  • High pressure cleaning / Cleaning vehicles
  • Cleaning nozzles

Oct 25, 2013

Course

This course includes tutorial services and a final examination.

Cleaning is one of the most important maintenance measures when it comes to ensuring a continuous performance of drainage systems. This module expands on the topics covered in module "D-05 cleaning I", by providing further knowledge on the applications and limits of flushing methods, mechanical cleaning methods and special methods, such as physical and chemical sewer cleaning. Discussed are both the accessible and non-accessible lines, as well as pressure lines. It concludes with providing constructive solutions for the minimization of solids entry into the sewer system, with the aim of preventing the formation of deposits and hence the reduction of cleaning efforts and frequencies.

The course consists of 5 modules covering the following topics:

  • Flushing methods
  • Mechanical and Miscellaneous methods
  • Cleaning of large profiles
  • Cleaning of pressure lines
  • Constructive design measures for the reduction of deposit

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