Identification of Weak Zones in the Tunnel Path Using Seismic Refraction Tomography

Tunnels are an essential requirement of modern era and so is the investigation of the path it takes. To avoid any kind of surprise of a weak zone or to be aware and be prepared for such is a huge advantage to the engineering team working on the project. This study investigates for any weak zone and delineate the bed rock interface throughout the tunnel path. This will help the engineers by providing prior information about the sub-strata and make suitable arrangements to deal with the problem.

Tunnels are used for a variety of purposes in the transportation industry, including the movement of water and sewage as well as road, rail and subway traffic. Conventional ways of investigating tunnel paths are often destructive in nature which may not always be feasible. Geophysics is an advance tool for such challenges. Seismic refraction tomography is a geophysical technique which can be used to identify weak zones in tunnel paths. It involves analyzing the behavior of seismic waves as they pass through different layers of the subsurface. By measuring and analyzing the travel times and velocities of these waves, a detailed image of the subsurface can be created to identify areas of potential weakness. This technique helps engineers and geologists assess the stability and integrity of the tunnel path. By identifying weak zones, such as areas with low rock quality or potential water ingress, necessary precautions can be taken to ensure the safety and durability of the tunnel.

Seismic refraction tomography provides valuable insights into the subsurface conditions, allowing for informed decision-making during the planning and construction phases of tunnel projects. It helps minimize risks and ensures that appropriate measures are taken to address any potential weak zones, ultimately contributing to the successful completion of the tunnel.