Immersed Tube Concrete Pouring Level Monitoring Solution

Published: 2025-12-29 Views: 14

Why Concrete Pouring Level Control Is Critical in Immersed Tube Construction

Immersed tube construction is widely used in bridge and tunnel engineering, especially in underwater crossings. During the concrete pouring process of immersed tube segments, accurate control of concrete filling height is essential to ensure structural integrity, construction quality, and project efficiency.

Uncontrolled or poorly monitored concrete filling may result in:

  • Incomplete filling or internal voids
  • Excessive or insufficient pouring time
  • Uneven structural stress distribution
  • Reduced construction efficiency and rework risk

Therefore, continuous monitoring of concrete filling height during immersed tube pouring is a key requirement in modern bridge construction projects.

2. Limitations of Traditional Pouring Monitoring Methods

Conventional monitoring methods during immersed tube concrete pouring typically rely on:

  • Manual observation
  • Experience-based judgment
  • Intermittent inspection

These methods have clear limitations:

  • Lack of continuous and real-time data
  • High dependency on operator experience
  • Difficulty working in enclosed or underwater-adjacent structures
  • Increased safety risks during on-site inspection

As construction quality standards continue to rise, traditional monitoring methods are no longer sufficient.

3. Distance-Based Monitoring for Concrete Filling Height

Distance-based measurement provides an effective solution for monitoring concrete filling height during immersed tube construction.

By continuously measuring the distance between a fixed reference point and the concrete surface, the system can accurately determine:

  • Current filling height
  • Filling rate
  • Pouring completion status

This enables construction teams to reasonably control pouring time, synchronize construction steps, and ensure both construction quality and speed.

4. Installation Method and Working Principle

In a typical immersed tube application, the monitoring system is arranged as follows:

  • An exhaust pipe is installed vertically at the top of the chamber structure
  • The lower end of the exhaust pipe is connected to the interior of the chamber
  • A MyAntenna RF laser distance sensor is fixed at the top of the exhaust pipe
  • The sensor emits a laser beam downward along the pipe axis

As concrete is poured into the chamber, the sensor continuously measures the distance to the concrete surface through the exhaust pipe, enabling real-time and non-contact monitoring of concrete filling height.

This installation method avoids interference from concrete flow and construction equipment while ensuring stable measurement conditions.

5. Advantages of Laser-Based Monitoring in Immersed Tube Pouring

Using laser distance sensors for immersed tube concrete monitoring provides several advantages:

  • Non-contact measurement without affecting concrete quality
  • Continuous and real-time height monitoring
  • High accuracy and repeatability
  • Reduced reliance on manual inspection
  • Improved construction quality control

These characteristics make laser distance sensors well suited for immersed tube bridges, underwater tunnels, and large civil infrastructure projects.

6. Recommended Sensor Solution

L2 / L3 Series Laser Distance Sensors

For immersed tube concrete pouring applications, MyAntenna RF L2 and L3 series laser distance sensors are commonly used, depending on interface and system requirements.

Typical features include:

  • 650 nm visible red single-point laser
  • Optical non-contact measurement principle
  • Measurement range suitable for enclosed chamber structures
  • Typical accuracy up to ±1 mm under ideal conditions
  • Optional interfaces: TTL / RS485 / 4–20 mA
  • Easy integration with PLC or construction monitoring systems

These sensors provide stable and reliable performance throughout the pouring process.

7. Application Value

Implementing distance-based concrete level monitoring enables:

  • Precise control of concrete filling height
  • Optimized pouring time and construction rhythm
  • Improved structural consistency and quality
  • Reduced risk of defects and rework
  • Higher overall construction efficiency

This solution supports data-driven, standardized, and high-quality infrastructure construction.

About MyAntenna RF

MyAntenna Technology Co.,Ltd. specializes in industrial laser distance sensors and antenna solutions.

Our products are widely used in bridge construction, tunnel engineering, infrastructure monitoring, and industrial automation, delivering reliable performance in demanding construction environments.

Image ALT Text

  • immersed tube bridge concrete pouring process
  • laser distance sensor installed in exhaust pipe for concrete level monitoring

相关产品

Related Products

No products selected in this application area