Mining experiment of upper coal seam under Changxing karst aquifer in Fengcheng Mine Area;

Pollution control and protection of the karst water in Jincheng;

Environment isotope determination mode for Karst water under seam floor of Wanbei Mining Area;

Simulation and analysis of karst water environmental system in Taian city;

Mode of occurrence of karst groundwater in the Northern Shaanxi Energy and Chemical Industry Base, China and its influence factors;

A practical use of ~34)S in the investigation of karst groundwater resource in North China

The abundant karst groundwater resources in a city of North Henan and the tendency of increase in chloride concentration in the karst water are briefly introduced in this paper.

Drainage in a reverse slope is the primary problem in the construction of a tunnel in a reverse-slope stratum with abundant water.

In tunnel construction of rich water karst area,the key technology to guarantee the tunnel construction security is to detect and forecast the geological situation in front of the tunnel face.

Research purposes:In order to ascertain geology condition of karst water bursting disaster in the course of tunnel caving and give a technique foundation for the work of tunnel geology prediction.