Workshop on Deep Excavation in Clay – Short term vs long term behaviour

Date 08/12/2017
Location Delft
Organizer Plaxis bv

Price €650

Registration closed

This workshop demonstrates the practical use of Plaxis 2D for deep excavation in clay. It particularly focuses on some of the most relevant modelling issues for such type of analyses:

  • Undrained modelling in PLAXIS
  • Soil test facility for the evaluation of undrained shear stress
  • Dewatering
  • Hardening Soil model vs Mohr-Coulomb model
  • Influence of small strain stiffness
  • Normally consolidated versus over-consolidated clay

For solving practical problems the PLAXIS 2D 2017 computer program will be used. It is recommended that participants already have experience with the PLAXIS 2D software.


The workshop starts at 9:00. The program format consists of 3 lectures (approx. 45 mins each) and 1 exercises (approx. 90 mins. each) and 1 extensive case study (approx. 90 mins) with full tutoring and discussion. The workshop will be completely in English. The organizers reserve the right to make any necessary amendments to the format or schedule.


09:00 - 09:45: Undrained behaviour modelling in PLAXIS
09:45 - 10:30:  Exercise 1: Undrained Excavation Method A vs Method B : Part I
10:30 - 10:45:  Break
10:45 - 11:30: Exercise 1: Undrained Excavation Method A vs Method B : Part II
11:30 - 12:00: Soil test
12:00 - 13:00: Lunch
13:00 - 14:00: Modelling Excavations in PLAXIS 2D
14:00 - 15:45: Case study Part I Deep excavation in NC clay

  • Model Setup
  • Mohr Coulomb vs Hardening Soil models
  • Undrained A versus Undrained B
  • Effect of intermediate consolidation
  • Strain dependent stiffness effect

15:45 - 16:00: Break
16:00 - 17:15: Case study Part II Deep excavation in OC clay

  • Limitations of the Hardening Soil model
  • Introduction and added-value of hypoplasticity model for Clay

17:15 - 17: 30: Questions & Answers session


The lecturers have a long time experience with the use of PLAXIS software. Besides giving courses they are also daily involved with the users through the Services Department.


The cost of the course is €650. The cost includes lunch and refreshments. The course fee also includes a full set of instruction manuals and the use of a computer.

Early bird discount

When registering before the 8th of November an early bird discount of 10% will be offered for the workshop.

Course Venue

The course will be held at the Plaxis Office (Computerlaan 14, Delft, 2628 XK) or at the Westcord Hotel (Olof Palmestraat 2, 2616 LM Delft ).


Please note that lodging is not included in the course fee and registration. If necessary, participants must make accommodation reservations by themselves.


The total number of participants is limited to twenty-two (22). Registration will be accepted in the order in which they will have been received. To register for the workshop, please complete the registration through our webshop. Our Terms & Conditions apply to this workshop.

Extra Workshop

This workshop will be held back-to-back with the Workshop: Material Models and Parameters in PLAXIS on the preceding day, December 7th 2017 at the same location. If you would like to attend both workshops then please register for each workshop separately.