W 128 Technical Rule - Standard 07/2008 -PDF file-
Design and Construction of Horizontal Filter Wells
- Herausgeber/Verlag: DVGW
- Format: 19 pages
- Material: available as PDF only
- Ausgabe: 1st edition 2008
- Hinweis: German version W 128
- Verkaufseinheit: 1
- Mindestabnahme: 1
- Artikel-Nr.: 510405
62,03 €*
1 Scope
2 Normative References
3 Terms, Symbols, Units and Abbreviations
3.1 Horizontal Filtering Wells
4 Engineering
5 Water Management and Hydrogeological Requirements
6 Technical Requirements
6.1 General
6.2 Dimensioning Parameters
6.3 Drilling Methods
6.3.1 General
6.3.2 Pipe Jacking Methods (HFB)
6.3.2.1 General
6.3.2.2 Ranney Collector Well
6.3.2.3 Fehlmann Collector Well
6.3.2.4 Preussag Well
6.3.3 Steerable Horizontal Directional Drilling
6.4 Design and Construction
6.4.1 Well Shaft
6.4.2 Solid-wall Pipes and Well Screen Pipes
6.4.3 Filter Sands and Filter Gravels
6.4.4 Development
6.4.5 Well Testing
6.5 Regeneration of Horizontal Filtering Wells
7 Quality Assurance
7.1 Inspections and Acceptances
7.2 Documentation
8 Contract Awarding Procedure