D Geo Pipeline User Manual DGeo

User Manual: Pdf DGeoPipeline-Manual

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1 General Information
- 1.1 Preface
- 1.2 Installation of pipelines
- 1.3 Features in standard module (HDD)
- 1.4 Features in additional modules
  - 1.4.1 Micro Tunneling module
  - 1.4.2 Trenching module
- 1.5 History
- 1.6 Minimum System Requirements
- 1.7 Definitions and Symbols
- 1.8 Getting Help
- 1.9 Getting Support
- 1.10 Deltares
- 1.11 Deltares Systems
- 1.12 On-line software (Citrix)
2 Getting Started
- 2.1 Starting D-Geo Pipeline
- 2.2 Main window
- 2.3 Files
- 2.4 Tips and Tricks
3 General
- 3.1 File menu
  - 3.1.1 General options
  - 3.1.2 Option ''Export Results as csv''
- 3.2 Tools menu
- 3.3 Help menu
4 Input
- 4.1 Project menu
- 4.2 Soil menu
- 4.3 Geometry menu
- 4.4 GeoObjects menu
  - 4.4.1 Boundaries Selection
  - 4.4.2 Calculation Verticals
- 4.5 Loads menu
  - 4.5.1 Traffic Loads
- 4.6 Pipe menu
- 4.7 Defaults menu
  - 4.7.1 Factors
  - 4.7.2 Special Stress Analysis
5 Calculations
- 5.1 Start Calculation
- 5.2 Special Stress Analysis (only for HDD)
- 5.3 Warning and Error messages
  - 5.3.1 Warning messages
  - 5.3.2 Error messages
6 View Results
- 6.1 Report selection
- 6.2 Report
- 6.3 Drilling Fluid Pressures Plots
- 6.4 Operation Parameter Plots
  - 6.4.1 Operation Parameter Plots for Micro Tunneling
  - 6.4.2 Operation Parameter Plots for Construction in trench
- 6.5 Stresses in Geometry
- 6.6 Subsidence Profiles
7 Graphical Geometry Input
- 7.1 Geometrical objects
  - 7.1.1 Geometry elements
  - 7.1.2 Construction elements
- 7.2 Assumptions and restrictions
- 7.3 View Input Window
- 7.4 Geometry modeling
- 7.5 Graphical manipulation
8 Tutorial 1: Calculation and assessment of the drilling fluid pressure
- 8.1 Introduction to the case
- 8.2 Project
- 8.3 Geometry
- 8.4 Pipeline Configuration
- 8.5 Soil behavior
- 8.6 Calculation Verticals
- 8.7 Product Pipe Material Data
- 8.8 Drilling Fluid Data
- 8.9 Factors
- 8.10 Results
- 8.11 Conclusion
9 Tutorial 2: Stress analysis of steel pipes and polyethylene pipes
- 9.1 Introduction to the case
- 9.2 Project Properties
- 9.3 Product Pipe Material Data
- 9.4 Engineering Data
- 9.5 Factors
- 9.6 Calculation and Results (Tutorial-2a)
  - 9.6.1 Results of the pulling force calculation
  - 9.6.2 Results of the pipe stress analysis of the steel pipe
- 9.7 Special Pipe Stress Analysis (Tutorial-2b)
- 9.8 Polyethylene Product Pipe (Tutorial-2c)
- 9.9 Conclusion
10 Tutorial 3: Influence of soil behavior on drilling fluid pressures and soil load on the pipe
- 10.1 Introduction to the case
- 10.2 Geometry of the longitudinal cross section
- 10.3 Soil layer properties
- 10.4 Finishing the geometry of the longitudinal cross section
- 10.5 Soil behavior
- 10.6 Calculated reduced soil load for pipe stress analysis
- 10.7 Calculated drilling fluid pressures
- 10.8 Drilling fluid pressure and groundwater pressure
- 10.9 Conclusion
11 Tutorial 4: Exporting soil mechanical data for an extended stress analysis
- 11.1 Introduction to the case
- 11.2 Settlement model
- 11.3 Geometry of the longitudinal cross section
- 11.4 Soil layer properties
- 11.5 Finishing the geometry of the longitudinal cross section
- 11.6 Calculated soil mechanical parameters in export file
- 11.7 Conclusion
12 Tutorial 5: Drilling with a horizontal bending radius
- 12.1 Introduction to the case
- 12.2 Pipeline Configuration
- 12.3 Calculation of the pulling force and pipe stress analysis
- 12.4 Conclusion
13 Tutorial 6: Installation of bundled pipelines
- 13.1 Introduction to the case
- 13.2 Product Pipe Material Data
- 13.3 Drilling Fluid Data
- 13.4 Engineering Data
- 13.5 Factors
- 13.6 Results
14 Tutorial 7: Face support pressure for micro tunneling
- 14.1 Introduction to the case
- 14.2 Model selection
- 14.3 Geometry
- 14.4 Pipeline Configuration
- 14.5 Pipe Material Data
- 14.6 Soil behavior
- 14.7 Calculation Verticals
- 14.8 Engineering Data
- 14.9 Results: Operation Parameter Plots
15 Tutorial 8: Uplift and thrust forces for micro tunneling
- 15.1 Introduction to the case
- 15.2 Geometry of the longitudinal cross section
- 15.3 Soil layer properties
- 15.4 Soil behavior
- 15.5 Pipeline Configuration
- 15.6 Calculation Verticals
- 15.7 Engineering Data
- 15.8 Results
  - 15.8.1 Thrust Force
  - 15.8.2 Uplift safety
16 Tutorial 9: Settlement and soil mechanical parameters for micro tunneling
- 16.1 Introduction to the case
- 16.2 Settlement
- 16.3 Geometry of the longitudinal cross section
- 16.4 Soil layer properties
- 16.5 Finishing the geometry of the longitudinal cross section
- 16.6 Calculated soil mechanical parameters in export file
- 16.7 Conclusion
17 Tutorial 10: Subsidence after micro tunneling
- 17.1 Introduction to the case
  - 17.1.1 Volume loss along the tunnel excavation
  - 17.1.2 Modification of the drilling line
- 17.2 Pipeline Configuration
- 17.3 Material data
- 17.4 Engineering Data
- 17.5 Results: Subsidence
18 Tutorial 11: Installation of pipeline in a trench
- 18.1 Introduction to the case
- 18.2 Model
- 18.3 Geometry of the longitudinal cross section
- 18.4 Soil layer properties
- 18.5 Finishing the geometry of the longitudinal cross section
- 18.6 Adding a waterway
- 18.7 Calculation Verticals
- 18.8 Boundaries Selection
- 18.9 Trench configuration and pipe material
- 18.10 Engineering Data
- 18.11 Results: Soil Mechanical Parameters
19 Tutorial 12: Trenching: uplift and heave
- 19.1 Introduction to the case
- 19.2 Materials
- 19.3 Phreatic level
- 19.4 Calculation Verticals
- 19.5 Factors
- 19.6 Results
- 19.7 Lowering the hydraulic head (Tutorial-12c)
20 Design of a pipeline
- 20.1 Design of a pipeline crossing using the HDD technique
- 20.2 Design of a pipeline crossing using the micro tunneling technique
- 20.3 Design of a pipeline using a trench
21 Calculation of soil mechanical data
- 21.1 Neutral vertical stress
- 21.2 Passive vertical stress
- 21.3 Reduced neutral vertical stress
  - 21.3.1 Reduced neutral vertical stress in compressible soil layers
  - 21.3.2 Reduced neutral vertical stress in non-compressible soil layers
- 21.4 Initial vertical stress
- 21.5 Neutral horizontal stress
  - 21.5.1 Pipelines installed using the HDD technique
  - 21.5.2 Pipelines installed in a trench or using micro tunneling
- 21.6 Vertical modulus of subgrade reaction
  - 21.6.1 Pipelines installed using a drilling technique
  - 21.6.2 Pipelines installed in a trench
- 21.7 Horizontal modulus of subgrade reaction
  - 21.7.1 Pipelines installed using a drilling technique
  - 21.7.2 Pipelines installed in a trench
- 21.8 Ultimate vertical bearing capacity
- 21.9 Ultimate horizontal bearing capacity
  - 21.9.1 Pipelines installed using the HDD technique
  - 21.9.2 Pipelines installed in a trench or using micro tunneling
- 21.10 Vertical displacement
  - 21.10.1 Isotache model
  - 21.10.2 Koppejan model
- 21.11 Maximal axial friction
  - 21.11.1 Pipelines installed using the HDD technique
  - 21.11.2 Pipelines installed in a trench or using micro tunneling
- 21.12 Displacement at maximal friction
  - 21.12.1 Pipelines installed using the HDD technique
  - 21.12.2 Pipelines installed in a trench or using micro tunneling
- 21.13 Global determination of the soil type
- 21.14 Traffic load
22 Drilling fluid pressures calculation
- 22.1 Minimum required drilling fluid pressure
- 22.2 Maximum allowable drilling fluid pressure
  - 22.2.1 Maximum allowable drilling fluid pressure in undrained layers
  - 22.2.2 Maximum allowable drilling fluid pressure in drained layers
- 22.3 Equivalent diameter for a bundled pipeline
- 22.4 Equilibrium between drilling fluid pressure and pore pressure
23 Strength pipeline calculation
- 23.1 Buoyancy control
- 23.2 Pulling force in a flexible pipeline
- 23.3 Maximum representative pulling force
- 23.4 Pulling force for a bundled pipeline
- 23.5 Strength calculation
- 23.6 Check of calculated stresses
  - 23.6.1 Check of calculated stresses according to the Dutch standard NEN
    - 23.6.1.1 Check of calculated stresses acc. to the Dutch standard NEN: Steel pipe
    - 23.6.1.2 Check of calculated stresses acc. to the Dutch standard NEN: Polyethylene pipe
- 23.7 Deflection of the pipe
- 23.8 Implosion of the polyethylene pipe
  - 23.8.1 Check on implosion during the pull-back operation
  - 23.8.2 Check on implosion when the pipe is in operation
24 Micro tunneling
- 24.1 Support pressures and thrust forces
- 24.2 Uplift Safety
- 24.3 Subsidence
25 Trenching
- 25.1 Uplift Safety
- 25.2 Bursting of the trench bottom (heaving)
26 Effective Stress and Pore Pressure
- 26.1 Hydraulic head from piezometric level lines
- 26.2 Phreatic line
- 26.3 Stress by soil weight
- 26.4 Distribution of stress by loading
  - 26.4.1 Stress increment caused by a line load
  - 26.4.2 Stress increment caused by a strip load
- 26.5 Effective stress and pore pressure
27 Benchmarks
Bibliography

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