Tolong jelaskan mengenai collapsible soils; dari Géologi rékayasa dalam bahasa sunda

other types of géologic constraints.

An engineering géologist or geophysicist may be called upon to evaluate the excavatability (i.e. rippability) of éarth (rock) materials to assess the need for pre-blasting during éarthwork construction, as well as associated impacts due to vibration during blasting on projects.