Software Integration for Pipelines and Underground Stresses

Faraz S. Tehrani

Mini-conference Infra for Water & Energy, Deltares, Delft

November 5, 2015

Outlines

• Overview

• D-Geo Pipeline

• D-Settlement

• Pipequake

• Wanda

• Integration plan

2

Outlines

• Overview

• D-Geo Pipeline

• D-Settlement

• Pipequake

• Wanda

• Integration plan

3

Overview

Layered soil profile

Buried pipelines

Loading conditions due to:

• Service load

• Soil settlement

• Seismic loads

• Shockwave

Is the designed pipeline serviceable?

4

Outlines

• Overview

• D-Geo Pipeline

• D-Settlement

• Pipequake

• Wanda

• Integration plan

5

D-Geo Pipeline

D-GEO PIPELINE is a graphical

interactive Windows tool for designing

pipelines installed by using one of the

three following techniques:

• the horizontal directional drilling (HDD)

technique

• the micro-tunneling technique

• the construction in trench technique

D-GEO PIPELINE provides the complete

functionality for the design of pipelines

installation.

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D-Geo Pipeline

7

Outlines

• Overview

• D-Geo Pipeline

• D-Settlement

• Pipequake

• Wanda

• Integration plan

8

D-Settlement

D-SETTLEMENT is a dedicated tool for

predicting soil settlements by external

loading.

D-SETTLEMENT accurately and quickly

determines the immediate settlement,

consolidation and creep along verticals in

two-dimensional geometry.

D-SETTLEMENT creates a

comprehensive tabular and graphical output

with settlements, stresses and pore pressures

at the verticals that have to be defined.

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D-Settlement

10

Outlines

• Overview

• D-Geo Pipeline

• D-Settlement

• Pipequake

• Wanda

• Integration plan

11

Pipequake

Pipequake is a 3D, non-linear

finite element code for the

analysis of pipelines.

The pipelines consist of Euler

beam elements, attached to

springs on both ends of the

beam.

Soil is modeled as a set of

nonlinear springs and dashpots.

Equation of motion:

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p p p s p p s p s s s sM u + (C + C )u + (K + K )u = C u + K u

Pipequake

13

Outlines

• Overview

• D-Geo Pipeline

• D-Settlement

• Pipequake

• Wanda

• Integration plan

14

Wanda

WANDA is a program for the hydraulic

design, control and optimization of

pipeline systems.

WANDA is used to asses:

• the steady state characteristics of the

system

• the dynamic and multi-phase

(transient) behavior of different media

transported through their often

complex, pipeline networks

WANDA can do the task 4 times faster

than other software.

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Wanda

16

Wanda

What should we do when

an earthquake occurs?

The pumping must be

stopped!

The pumping must

continue!

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Outlines

• Overview

• D-Geo Pipeline

• D-Settlement

• Pipequake

• Wanda

• Integration plan

18

Integration

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Wanda Pipequake

D-Geo Pipeline

D-Settlement

Pipeline System

Stresses at Pipeline

Is the

Design

Satisfactory

?

NO

YES

Save

the

Data

Outcome of the Project

Calculating the stresses generated in a pipeline due to:

• settlement of the surrounding soil

• seismic activities

• internal pressure induced by pumping

Making a safe decision in case of earthquakes

Designing pipelines efficiently

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Thank You!

Questions?

10 november 2015 21