Both ends of the three tunnels, the two driving tunnels and the service tunnel, must pass through zones of weathered rock of extremely poor quality before entering into solid rock on-land before entering the subsea section.

Study on characteristics of seismic stratigraphy by generalized S-transform;

Correlation between the Xujiahe Formation and the Xiangxi Group is performed by using various methods, such as petrostratigraphy, seismic stratigraphy, event stratification and high resolution cyclic stratigraphy, and the Upper Triassic in the whole basin is correlated.

The seismic stratigraphy can be divided into 11 seismic units: early Pleistocene U1, mid-Pleistocene U2, U3, U4, U5 and U6, late Pleistocene U7, U8, U9, U10 and U11.

Evaluation on earthquake risk of city buildings by life-cycle cost method;

In this paper, the earthquake risk in Anhui and East China is assessed by use of the information diffusion pattern in two aspects of annual earthquake frequency and annual maximum earthquake.

There is huge earthquake risk in China.

Research on seismic risk analysis of wood structural house

Seismic fragility analysis is one of the three issues (seismic hazard analysis, seismic fragility analysis and seismic loss assessment) in seismic risk analysis.

The seismic risk estimation for buildings is one of the most important parts of urban earthquake disaster planning.