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Tunnel Convergence Monitoring Cases

Tunnel convergence monitoring focuses on cross-section deformation. Flexible arrays can follow curved installation paths and form convergence rings, while laser and settlement sensors provide independent checks.

FLEXIBLE ARRAY · CONVERGENCE RING · LASER CHECK

Ring

Cross-Section Layout

Flexible arrays support ring-type installation around tunnel sections.

SAA

Flexible Profile

Segmented sensors convert bending shape into displacement profiles.

Laser

Independent Distance Check

Laser rangefinders can track key chord lengths in the same section.

Cloud

Trend + Alarm

Section deformation is judged by trend, rate and construction stage.

SAA flexible array installed around a tunnel section for convergence monitoring

Case scope

What SoilCreate Monitors On Site

Tunnel convergence is different from vertical borehole inclinometry. The monitored object is a curved lining or excavation section, so the sensor must tolerate bending and installation geometry. SoilCreate uses flexible inclinometer arrays for profile continuity, laser rangefinders for point-to-point confirmation, settlement sensors where vertical movement matters, and an edge terminal to package all readings into one cross-section record.

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Geometry-aware installation
Flexible arrays are selected when the path is curved, horizontal or ring-shaped rather than a straight vertical casing.
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Cross-section rather than single point
The warning object is the shape change of the section, not just one displacement value.
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Independent checks reduce false judgement
Laser distance, settlement and construction event records help separate real convergence from installation disturbance.

Data chain

Monitoring Chain Used On Site

Delivered projects are organized from monitoring targets to data quality, alarm rules and reporting outputs.

Tunnel section → Flexible ring → Laser chord → Edge terminal → Convergence trend

Representative projects

Delivered Monitoring Cases

These cases focus on monitoring targets, sensor combinations and the data logic used after delivery.

Subsea Tunnel

Qingdao Jiaozhou Bay Subsea Tunnel

SoilCreate has served the Qingdao Jiaozhou Bay subsea tunnel project. Automated section-level records are valuable in tunnel environments because access windows and manual measurement timing are constrained.

Shield / Utility Tunnel

Shanghai Suzhou River Deep Tunnel Yunling Shaft

SoilCreate delivered monitoring for the Yunling shaft section of the Shanghai Suzhou River deep tunnel, combining deformation, water-level and support-state data in a typical urban deep-tunnel scene.

Water Tunnel

Zhuhai Modaomen Tunnel

SoilCreate served the Zhuhai Modaomen tunnel project, using automated monitoring to support deformation tracking in a long water-crossing tunnel environment.

Implementation checklist

Delivery Checks Behind Reliable Data

The following checks are standard items in field delivery and long-term operation.

Delivery phase	Field check
Section definition	Define convergence section, sensor arc, laser chord and settlement reference before installation.
Fixing method	Keep the array attached to the lining or support structure without local kinks.
Data interpretation	Read section shape, point displacement and construction event together.