The Zhijidong Cave site(34°38′N,113°13′E) is situated on an isolated hill north to the Wangzong dian Village, Xingyang City, Henan Province (Figure 1).

Study of Database Construction of Karst Caves in China;

High-frequency seismic prospecting used to find caves in the rock-mass below stakes;

When it was being drilled,a vertical well was drilled at first,and caves were made in coalbed gas sect,then a horizontal well were drilled at a distance of 200 m,horizontal segment were in connection with the caves,and 10 branch holes were lateral drilled symmetrically in horizontal sect.

Detecting badger cave disease in embankment by ground penetrating radar;

Grouting applied to treatment of roadbase cave in loess areas;