Experimental determination of vibration transmission through soft soil near a tunnel

摘要

The Botlek railway tunnel, currently under construction, is part of the cargo line "Betuweroute". This line will run from the port of Rotterdam, The Netherlands, to Germany. The Botlek railway tunnel is a shield driven tunnel and consists of 2 tubesof 1800 m length. The construction project includes some large field tests. The paper deals with the dynamic tests performed at a test site located at the ground surface 500 m from the western entrance. Dynamic measurements are executed by means of 3 seismic penetrometers, 3 instrumented prefab piles, and several surface sensors. The instruments are equipped with 3D accelerometers. Four test sessions are planned. The paper will discuss the test program and the test set-up, as well as some preliminary results.