Not only is karst a concern during design and construction, it can also be problematic during subsurface exploration operations due to the inconsistent rock surface and mass. It is common to encounter steeply dipping rock surfaces, isolated rock pinnacles, mud seams, and voids which can not only create difficulties in exploration and sampling, but also be subject to misinterpretation by engineers who are not accustomed to the geology.
ECS has extensive experience with geotechnical exploration and consultation in karst. Karst poses specific challenges to design and construction, ranging from structural support, to site grade activities, to stormwater management facilities. These challenges are typically increased in areas along rivers and waterways due to the movement and influence of surface and groundwater on the weathering of carbonate rock and the resulting inconsistent rock surface. Groundwater seepage also increases the risk of collapse of voids within the overburden soils.
