M00001614
New product
ISO 22282-1 1st Edition, June 1, 2012 Geotechnical investigation and testing - Geohydraulic testing - Part 1: General rules
In stock
Warning: Last items in stock!
Availability date: 07/13/2021
Description / Abstract:
This part of ISO 22282 establishes the general rules and
principles for geohydraulic testing in soil and rock as part of the
geotechnical investigation services in accordance with EN 1997-1
and EN 1997-2. It defines concepts and specifies requirements
relating to permeability measurement in soil and rock.
The different purposes of geohydraulic testing are to obtain
information on the permeability of soil or rock in natural or
treated states, transmissivity and storage coefficient, and
hydrodynamic parameters of aquifers.
Geohydraulic testing is used for many purposes, such as:
a) absorption capacity and effectiveness of grouting in rock
mass;
b) assessment of seepage and drainage;
c) assessment of groundwater lowering work;
d) effects of cut-offs for dams;
e) effects of tunnels and shaft sinking;
f) checking fill or cover tightness;
g) assessment of the flow of fluids and suspensions in the
ground;
h) planning for remedial measures.
NOTE 1 Geohydraulic testing for water supply is covered by ISO
14686.
NOTE 2 For most types of ground, field permeability tests yield
more reliable data than those carried out in the laboratory,
because a larger volume of material is tested, and because the
ground is tested in situ, thereby including effects
resulting from the structure of the ground mass but avoiding the
disturbance associated with sampling.
This part of ISO 22282 deals with the execution of tests with
groundwater and does not explicitly consider other fluids and
suspensions. The flow of other fluids and suspensions can be
considered by applying the different viscosities and relations
between transmissivity, permeability coefficient and intrinsic
permeability.