Borehole Drilling Method

window sampler

notation 4.2.7 more like this
definition Window or windowless sampling uses either drop weight or hydraulic hammer to drive 1m or 2m long sample tubes into the ground. The sample tubes have open slots or “windows" along their length to allow for logging and sampling. In windowless sampling, the sample tube contains a liner which retains the sample and reduces potential for cross contamination of soils during the drilling process. Window or windowless sampling is used to bore through shallow soft soils to investigate the substrata in order to gain a profile of the ground conditions and to facilitate soil sampling for chemical and geotechnical analysis. more like this
source more like this
broader direct push
narrower window sampler
in scheme boreholedrillingmethod
is primary topic of window sampler