Modern Mining ›› 2024, Vol. 40 ›› Issue (03): 27-32.
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Tongling area has experienced complex tectonic evolution and magma activities .Under the dual action of geological conditions and mineral development，karst collapse geological disasters have devel⁃ oped strongly，and occupy a dominant position in all kinds of geological disasters.Based on previous geologi⁃ cal data of karst collapse in the Tongling area，the development scale，morphology，and spatiotemporal dis⁃ tribution characteristics of geological disasters were statistically analyzed. The development regularities were summarized，and typical karst collapse geological disaster points were analyzed.The research results show that the intersection of T1n and P1q carbonate rock strata and structures，and the distribution area of sulfide deposits at the intrusive rock interface are the main locations of karst collapse geological disasters. The change of groundwater level caused by mine drainage is the main inducing factor of karst collapse geological disasters. In the future，engineering construction should avoid the prone locations of karst collapse geologi⁃ cal disasters，and strengthen the demonstration and management of groundwater pumping.
