Trimble Access Tunnels

Software

Product Information Support & Downloads Version 2021.20 Now Available

All day, every day. What professionals use to survey in the field.

Trimble® Access™ continues to be the leading field software professional surveyors use around the world.

Easily set up a station.
Measure the backsight and all foresight targets and save their details to the job for subsequent site visits.
Add points to monitor by measuring, keying in, or importing from a .csv file.
Define measurement parameters such as epoch interval and tolerance.

Define tunnel geometry for the design including alignments, templates, profiles, offsets, rotations, and station equations
Key in set-out positions for rockbolts, anchors, blast holes, and other tunnel features
Review design elements in powerful plan and cross-section views.

Automate the measurement of as-built profiles using the S-series robotic total station
Review measured data to report on over and underbreak values for construction quality control
Measure points through an iterative process that ensures data is collected on-station even when encountering irregular surfaces
Create in-field as-built reports to assess the excavation, shotcrete, and lining process

Automate stake out of key tunnel features such as rockbolts, anchors, blast holes, and other tunnel features using the S-series laser pointer
Position construction equipment such as roadheaders and drilling jumbos using the S-series laser pointer and design alignment
Report on deltas between staked location and design point for quality control

Seamlessly transfer designs and survey data between Trimble Access and TBC
Utilizing Trimble Sync Manager to communicate designs and data between the field and office
Generate in-field reports for construction control and quality that can be shared with stakeholders and clients

Overview

The Trimble® Access Tunnels application includes powerful tools to define, survey, stakeout, and report on tunnel operations. The easy-to-use interface guides you through tasks such as marking areas of underbreak and overbreak, and positioning machinery.

Features

Define your Tunnel

Refine tunnel components including horizontal and vertical alignments, templates, and rotation, or import a definition from a LandXML file.
Define end-face blast holes and set-out positions typically used for bolt holes.
Review the tunnel before going underground.

Survey

Auto scan cross sections including options to manually measure and delete points.
Measure positions relative to the tunnel definition.
Set out pre-defined positions.
Position machinery, typically a drilling rig, relative to the tunnel.

Output and Reports

Review auto scanned, set out, and manually measured points
You can generate reports for your surveyed tunnel while in the field. Use these reports to check data in the field, or to transfer data from the field to your client or to the office for further processing with office software.