Abstract The Chalk is an unusual karst aquifer with limited cave development, but extensive networks of smaller solutional conduits and fissures enabling rapid groundwater flow. Small-scale features (stream sinks, dolines, dissolution pipes, springs) are common, hundreds stream sinks recorded. Tracer velocities from 27 connections between springs have median mean 4700 4600 m d −1 . Tests to abs...

There are many karst collapse columns in coal seam roof the southern field China, which different from those floor northern field, due to stratum characteristics. The column tends reactivate and conduct water induce serious inrush disaster, when communicates with overlying aquifer. In order reveal evolution mechanism of water-conducting channel mining area southwest aquifers inflow rule 1908 wo...

The existence of large-scale weak zone will have a great adverse impact on coal mining in high confined aquifer. Taking the Wutongzhuang Coal Mine which is threatened by high-pressure water as an example, this paper studies difference between microseismic events before and after analyzes influence large size research results show that characteristics soft belt are small number events, spatial d...

The results of long-term groundwater monitoring in the Bileća reservoir adjacent (eastern Herzegovina, Bosnia and Herzegovina) indicate that there is a good hydraulic connection between karst aquifer located right bank reservoir. In remote parts right-bank aquifer, due to complex lithostratigraphic characteristics tectonic structure, influence very variable has been insufficiently studied up un...