As a new type of irrigation of dock, siphon passage which employs the siphon theory has advantages of simple structure, rapid set-off and convenient operation management.

Design of prefabricated section for grouting gallery;

The TangKou hydropower station is based on the chap ash-rock,which develops much fault and cranny,the integrality of rock body is poor and the penetrate ability is strong,the influence of the construct quantity and long time run,many central leakage appear in the grouting gallery and drain gallery of the dam.

Optimization of the first diversion port in the conduit system of Three Gorges Ship Lock;

Numerical simulation of three-dimensional flow for double inlet passage of boatyard;

The paper describes the application of ground-penetrating radar in Wulong Tunnel’s karst and underground river detection,which leads to the delineation of karst-developing places around the catchment channel and provides useful engineering geology data for the designer and constructor to take prevention and curing measures.

After analyzing its advantage and application condition, the paper suggests another two kinds of drain patterns, multilayer_well drainage pattern and collector well_multilayer_well drainage pattern.