Tunnel Control 

Trimble's solutions include hardware and software integrated to enable the capture of highly accurate data in tunnels where dirt, dust, water and machinery provide a challenging work environment. Remote operation of operation of instruments and scanners enhances user ergonomics and contributes to increasing safety by enabling surveyors to stand in safe locations and capture data efficiently in the often inaccessible, confined spaces of tunnels.

Tunneling for miles underground is a costly business, requiring the utmost dependance on surveyors to ensure tunnel breakthroughs occur at the exact location (within millimeters). To ensure accuracy, surveyors rely on precise measurements from high-accuracy total stations, such as the Trimble® S9 HP. With the new Trimble TSC7 data collector with Trimble Access™ field software, surveyors can easily control the total station and manage tunnel information. The combined solution improves the ease of use and data visibility in challenging tunnel environments. The 7-inch data collector display, backlit keypad and optimized software makes it easier than ever to capture control data efficiently and accurately. In the office, traverse and network adjustment can be processed with the Trimble Business Center software to ensure high-level accuracy.

Drilling and Blasting

Survey and tunnel construction contractors can now use the Trimble Business Center Tunneling module to key-in tunnel alignment and design elements and effectively transfer tunnel designs to the field for stakeout. The large display of the Trimble TSC7 allows field engineers to view the designs more efficiently while enhancing usability for the precise stakeout of drilling locations and guide drilling and blasting machinery . The specific Class 3R laser point on the Trimble S9 HP and the Trimble Access Tunneling Application enable surveyors to clearly and quickly define drilling locations, enabling progress tracking and ensuring the project stays on schedule and on budget.


As-built Verification 

Rapid analysis and reporting on tunnel excavation and boring is critical in order to identify any potential deviations from the original design and to determine quantities for shotcrete and other linings. Trimble solutions provide surveyors with dependable solutions, whether rapidly scanning sections with the Trimble Access Tunneling Application and a Trimble S9 HP or using a Trimble SX10 to quickly capture highly detailed information throughout the tunnel. All data and designs are seamlessly shared between the field and office enabling quick analysis and reporting in the field within Trimble Access, or more detailed comparison to design within the new Trimble Business Center Tunneling module.  Analysis includes overbreak / underbreak visualization and reporting, design to as-built comparison, clearance reporting and accurately calculating shotcrete lining volumes that are critical to minimize costs and improve project efficiency.

Trimble TSC7 Controller



This portfolio of products reduces the time to generate project deliverables by enabling survey and tunneling engineers to easily compare tunnel designs with field captured data.  

Trimble Business Center 
Trimble TSC7 + Access 2018
Trimble S-Series Total Stations

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