Large Component Load Testing System

The system primarily consists of a cloud platform, a control center, intelligent hydraulic stations, hydraulic cylinders, sensors, and a machine vision measurement system. The quantities of intelligent hydraulic stations, hydraulic cylinders, sensors, and machine vision measurement systems can be flexibly configured according to the test design requirements.

The control center, equipped with built-in master control software, is responsible for converting test configurations into hydraulic control targets and distributing them to the intelligent hydraulic stations. The embedded controllers within the hydraulic stations operate at a millisecond-level response rate, performing autonomous control based on the received targets and driving the hydraulic cylinders to execute loading actions. Simultaneously, the various sensors and the machine vision measurement system within the system monitor minute deformations on the component in real-time, feeding the data back to the interface to support intelligent decision-making by both the system and human operators.

All test data is automatically uploaded to the cloud platform via the network throughout the entire process. This enables long-term unattended load testing. Users can view and manage test data at any time through a web browser or dedicated application (APP).

▋ Full-Scale Loading Test on an Ultra-Deep Buried Shield Tunnel Segment at a Hangzhou Metro Project

A full-ring structural test was conducted, utilizing 1 control center, 24 intelligent hydraulic stations, and 3 machine vision 2D measurement systems. The test successfully completed the required multi-condition loading and load-holding phases, assessing force and deformation. It measured displacement changes at up to 20 specified measuring points on the structure and successfully simulated the structural convergence deformation state. The test verified that the actual load-bearing capacity of the structure met the design requirements.

▋Composite Cavity Reinforcement Test on a Shield Tunnel at a Nanjing Metro Project

Utilizing 1 control center paired with 24 intelligent hydraulic stations, the test achieved 24-point synchronous control. The system maintained continuous loading for one month, successfully simulating various composite working conditions and satisfactorily fulfilling all test design requirements.

▋Structural Performance Test on a 1/4 Scale Model of a Shanghai Metro Station

A 1/4 scale structural test of a bundled structure in a soft soil area was conducted, utilizing 6 intelligent hydraulic stations and 4 machine vision 2D measurement systems. While successfully completing multi-condition loading and load-holding tests, the system also measured displacement changes at 23 designated measuring points on the structure via the machine vision measurement systems, effectively simulating the structural convergence deformation state.