Advance notice of lithological heterogeneity and any variation in mechanical rock properties which could affect tunnelling is an important factor. Such early warning makes it possible to ensure that counter-measures and logistic procedures are planned in good time. Continuous, high-quality predictions enable the management of risks inherent in tunnelling.

Challenges of underground projects Uncertainty lies ahead of the face The cost, and overall feasibility, of the project is dominated by geology Every aspect of the geological investigation for tunnels makes greatest demands The understanding of regional geology and hydrogeology is essential Limitations of surface investigations Strongly changing geology conditions High overburden / limited depth penetration Urban areas above tunnel route Insufficient resolution Benefits of Tunnel Seismics Continuous prediction ahead of the face Gain time for construction and logistical countermeasures Minimise the downtime risk of expensive tunnelling equipment Improve safety Profit from shorter construction times and cost savings Systems available TSP 203PLUS The TSP 203PLUS is the latest high-end technology based on many years of experience. This system solution is specifically developed for underground construction.

TSP application video at Olmos tunnel in Peru Comparison of prediction methods over 200m