Specific topics include causes of house subsidence in an area adjacent to Illinois' sinkhole plain
, applying the electrical resistivity method in steeply dipping karst terrane, instrumentation and preliminary results from probing the plumbing of Wakulla Spring, water level variation and predicting the Pingshan Sinkhole in Guizhou in southwestern China, the numerical analysis of embankments supported by geosynthetics over drilled shafts in karst terrains, and gypsiferous soils as an engineering problem.
The Southwest Illinois Karst comprises a gently roiling sinkhole plain area located just southeast of St.
Over the course of the past decade, tremendous population growth has occurred on the sinkhole plain. The gently rolling hills of the karst areas present a natural beauty that makes them highly desirable for residential development.
The springs and wells that were tested were spread across the entire sinkhole plain. This was a preliminary evaluation of karst groundwater quality.
As a condition of the grant, the Mississippi Karst Resource Planning Committee is continuing to sponsor tours of the sinkhole plain. A tour was held on April 19, 1997, in conjunction with the Illinois State Geological Survey.
A map delineating the sinkhole plain areas was also incorporated.
Surface discharge systems will not be permitted in the sinkhole plain areas.