Based on the experimental study of single spur,the scour occuring around spurgroups is discussed.

Based on the difference equations for 2-D depth-averaged current,the 2-D mathematical model with spur-dikes is proposed,which is solved by finite element method using Galerkin method of weighted residuals and Newton-Raphson non-linear iteration.

In order to monitor behavior of dam group,remote and real-time monitoring warning system of dam group is realized by use of modern technology of Internet and communication.

In order to fully utilize the rapid increasing abundant monitoring data of dam group and to provide the stronger decision-making support fordam safety monitoring, data warehouse is discussedas the baseplatformand the new-style decision-making systemwith the functions of management and decision-makingfordam groupis developed.

In order to solve the existing problem of distributed management of dams, modern technology of Internet and communication is used for the realization of remote, online and real-time monitoring of dam groups.

The discussion on reserviors controlling in Qixinghe river valley;

Liubatang Group, composed of Dabaihuashan formation, Huanglishan formation and Qingshuigou formation, belongs to Qingbaikou System in Kunming area of Central Yunnan Province.