Compared with the data of the groundwater level monitored by artificial and automatic measures before and after the implementation of underground drainage works,it is shown that the slope groundwater level has declined after excavating the underground drainage tunnel in crushed-rock slope.

Three-dimensional numerical simulation and analysis of excavation and support in underground tunnel;

Comparison of models for heat exchange calculation inside underground tunnel of hydra-power plant

From the analysis of Shawan underground tunnel model,we take the cross section of IV surrounding rock as an example to calculate the displacement and stress of surrounding rock,lining and the stress of anchor bolts,then to research the influences of various excavation types of the tunnel surrounding rock s stability.

Three-dimensional simulation analysis of structure of deep water diversion tunnel with TBM constructing;

Two water diversion tunnels are embedded in soft soil under road.

Construction of vertical shaft by means of freezing is a new attempt for water diversion tunnel construction.

Analysis and evaluation of stability of transporting water tunnel influenced by expressway;

108 transporting water tunnels of Guanzhuang Reservoir,the reasons of the hidden safety trouble of the tunnel and some treatment measures are proposed.

Treatment on collapse of water conveyance tunnel of Maliba Reservoir in Yunnan Province;

Construction features of a super long water conveyance tunnel project with large cross section in construction;