Crucially, the standard is designed for use regardless of groundwater conditions. It provides robust procedures for both situations, ensuring a standardized approach that produces reliable, comparable data across all geotechnical projects.
: Pumping water in at a steady rate to see how much the ground can "drink".
: Essential for civil engineering projects, such as designing foundations, dams, and drainage systems, where understanding how water moves through the ground is critical. Requirements bs en iso 22282-2 pdf
: Utilized in open holes or through the bottom of a casing string where packers are not required to isolate the test zone. Purpose : To determine the local hydraulic conductivity ( -value) of the ground. Key Testing Methods Defined in the Standard
By investing in the official standard, you invest in the integrity of your geotechnical work. Crucially, the standard is designed for use regardless
An example packer testing case study conducted in accordance with BS EN ISO 22282‑3 used stepwise pressure increments of 25%, 50%, 75% and 100% of the rock mass pressure, returning to 50% and 25% as part of a standard cycle, while continuously monitoring water pressure and flow.
Engineers and geologists rely on these tests to predict how water moves through the ground. This information is critical for: : Essential for civil engineering projects, such as
An open system is one where the test section of the borehole is directly open to the atmosphere. Typically, this involves creating a "test zone" within the borehole, often isolated by inflatable packers (seals), to which water is added, and the rate at which this water flows out into the surrounding soil or rock is measured. As the name implies, the test zone remains open and accessible above ground.
: Provides the final interpretation of results, including calculated permeability values, graphs of head vs. time, and details on any unsaturated soil conditions encountered. Where to Access BS EN ISO 22282-2