Tunnel portal sections always suffer serious damage under strong earthquakes. This paper aims to study the seismic performance of lining strengthening method in soft rock section by employing model test. Firstly, shaking table test considering cases, modified input motions, boundary condition, and monitoring equipment are conducted simulate response tunnel section. Then, increasing concrete gra...

In view of the insufficient analysis coupled joint seismic response intake tower–reservoir water–foundation boundary under oblique incidence SV wave space, a three-dimensional dynamic equation space is established in this paper. The external input method viscoelastic artificial combined with equivalent load and acoustic medium theory are used to simulate action reservoir water, angle change rea...

The Feldbiss fault is the main active fault bounding to the southwest the Roer Valley Graben of NW Europe. In order to investigate the reasons of the discrepancy between its shortand long-term slip rate estimates, we have repeatedly surveyed a 2.3 km-long line by levelling at Sittard (The Netherlands) from April 2001 to December 2004. Simultaneously, three superposed aquifers were monitored on ...