Self-help wells/ R. G. KOEGEL
Material type:
TextLanguage: English Series: FAO IRRIGATION AND DRAINAGE PAPER NO.30Publication details: Rome : FAO, 1977Description: 73 p. ; iliSubject(s): | Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | |
|---|---|---|---|---|---|---|---|---|
| Monograf | JPS HQ Library Main Library | General Collections | FAO-PAPER 30 628.112 KOE (Browse shelf(Opens below)) | 1 | Available | 1000006354 |
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| FAO-PAPER 28 631.62 DIE Drainage testing/ | FAO-PAPER 28-32 341.16 FAO FAO Irrigation and drainage paper 28-32 | FAO-PAPER 3 631.67 FAO Design criteria for basin irrigation systems | FAO-PAPER 30 628.112 KOE Self-help wells/ | FAO-PAPER 33 66.012.5 DOO YIELD RESPONSE TO WATER | FAO-PAPER 33 66.012.5 DOO YIELD RESPONSE TO WATER | FAO-PAPER 33-35 341.16 FAO FAO Irrigation and drainage paper 33-35 |
1. Introduction. 2. Groundwater occurrence. 3. Comparison of large and small diameter wells. 4. Small diameter wells. 4.1 Bored or augured wells. 4.2 Driven wells. 4.3 Jetted wells. 4.4 Hydraulic percussion. 4.5 Percussion. 4.6 Hydraulic rotary. 4.7 Casing and screens. 4.8 Methods for obtaining vertical reciprocating motion. 4.9 Rope. 4.10 Well development and finishing. 4.11 Problem solving. 5. Large diameter wells. 5.1 Rationale for construction of large diameter wells. 5.2 Dimensions for large diameter wells. 5.3 Excavation. 5.4 Lining the excavation. 5.5 Equipment for raising and lowering materials. 5.6 Moulds. 5.7 Concrete work. 5.8 Safety. 5.9 Finishing large diameter wells. 6. Hybrid wells. 7. Non-Vertical wells. 8. Health aspects. 9. Availability of skills and materials.
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