W 118 Technical Rule - Standard 07/2005 -PDF file-
Dimensioning of vertical filter wells
- Herausgeber/Verlag: DVGW
- Format: 24 pages
- Material: available as PDF only
- Ausgabe: 1st edition 2005
- Hinweis: German version W 118
- Verkaufseinheit: 1
- Mindestabnahme: 1
- Artikel-Nr.: 510398
59,59 €*
1 Scope
2 Normative references
3 Definitions
3.1 Erosion
3.2 Colmation
3.3 Suffosion
4 Principles of well dimensioning
5 Dimensioning
5.1 Hydraulic dimensioning
5.1.1 Principles
5.1.2 Dimensioning the well filter
5.1.2.1 Colmation safety
5.1.2.2 Slot/gap width of the well screen
5.1.2.3 Well screen length
5.1.2.4 Well screen diameter
5.2 Static dimensioning
5.2.1 Principles
5.2.2 Tensile strength
5.2.2.1 General
5.2.2.2 Verification procedure
5.2.2.3 Determination of weight force
5.2.2.4 Verification of tensile strength
5.2.3 External pressure strength
5.2.3.1 General
5.2.3.2 Verification procedure
5.2.3.3 Determination of the acting external pressure
5.2.3.4 Verification of external pressure strength
Annex A (informative)
Annex B (informative)
Annex C (informative)
C.1 Boundary conditions
C.2 Hydraulic dimensioning
C.2.1 Verification of colmation safety according to 5.1.2.1
C.2.2 Verification of slot/gap width of well screen according to 5.1.2.2
C.2.3 Verification of well screen length according to 5.1.2.3
C.2.3 Verification of well screen diameter according to 5.1.2.4
C.3 Static dimensioning
C.3.1 Verification of tensile strength according to 5.2.2
C.3.2 Verification of external pressure strength according to 5.2.3
Bibliography