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BS EN ISO 22282-4:2021

BS EN ISO 22282-4:2021

$167.15

Geotechnical investigation and testing. Geohydraulic testing – Pumping tests

Published By Publication Date Number of Pages
BSI 2021 36
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This document establishes requirements for pumping tests as part of geotechnical investigation service in accordance with EN 1997ā€‘1 and EN 1997ā€‘2.

This document applies to pumping tests performed on aquifers whose permeability is such that pumping from a well can create a lowering of the piezometric head within hours or days depending on the ground conditions and the purpose. It covers pumping tests carried out in soils and rock.

The tests concerned by this document are those intended for evaluating the hydrodynamic parameters of an aquifer and well parameters, such as:

  • permeability of the aquifer,

  • radius of influence of pumping,

  • pumping rate of a well,

  • response of drawdown in an aquifer during pumping,

  • skin effect,

  • well storage,

  • response of recovery in an aquifer after pumping.

This document establishes requirements for pumping tests as part of geotechnical investigation service in accordance with EN 1997ā€‘1 and EN 1997ā€‘2.

This document applies to pumping tests performed on aquifers whose permeability is such that pumping from a well can create a lowering of the piezometric head within hours or days depending on the ground conditions and the purpose. It covers pumping tests carried out in soils and rock.

The tests concerned by this document are those intended for evaluating the hydrodynamic parameters of an aquifer and well parameters, such as:

  • permeability of the aquifer,

  • radius of influence of pumping,

  • pumping rate of a well,

  • response of drawdown in an aquifer during pumping,

  • skin effect,

  • well storage,

  • response of recovery in an aquifer after pumping.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
10 3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Equipment
11 5 Test procedure
5.1 Test preparation
5.1.1 General
5.1.2 Determining the discharge rate for the pumping test
5.2 Arranging the disposal of discharge water
12 5.3 Executing and equipping the well
5.3.1 Design of the test well
14 5.3.2 Installation procedure
5.3.3 Preparation of the well
5.4 Executing and equipping the piezometers
5.4.1 Installation procedure
5.4.2 Preparation of piezometers
15 5.5 Execution of the test
5.5.1 General
5.5.2 Pre-pumping monitoring
5.5.3 Preliminary pumping phase
5.5.4 Pumping test
16 5.5.5 Post-pumping monitoring
17 5.6 Uncertainty of measurement
5.7 Interruptions in pumping
5.8 Decommissioning
6 Test results
18 7 Reports
7.1 Field report
7.1.1 General
7.1.2 Installation record
7.1.3 Record of measured values and test results
19 7.2 Test report
20 Annex A (informative) Record of measured values and test results of the pumping test ā€” Example
23 Annex B (informative) Determining the pumping test discharge
27 Annex C (informative) Interpretation of the pumping test results
35 Bibliography

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BS EN ISO 22282-4:2021
$167.15