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ISO 22476-7:2012

Geotechnical investigation and testing — Field testing — Part 7: Borehole jack test

Nov 28, 2012

General information

90.93     Jun 22, 2023

ISO

ISO/TC 182

International Standard

93.020  

English   French  

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Scope

ISO 22476-7:2012 specifies the equipment requirements, execution of and reporting on borehole jack tests.
It specifies the procedure for conducting a borehole jack test in ground stiff enough not to be adversely affected by the drilling operation. Two diametral cylindrical steel loading plates are placed in the ground and opened by pressure. Pressure applied to, and associated opening of, the probe are measured and recorded so as to obtain a stress-displacement relationship of the ground for the range of the expected design stress.
ISO 22476-7:2012 applies to test depths of < 100 m and to testing either on land or off-shore.

Life cycle

NOW

PUBLISHED
ISO 22476-7:2012
90.93 Standard confirmed
Jun 22, 2023