Shield Construction Stratum Deformation Control
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Solution Overview
Problem
Current methods for controlling stratum deformation in shield construction processes are inadequate, as they fail to effectively manage the varying factors influencing settlement during different stages of the process, leading to difficulties in maintaining soil stability and environmental safety.
Innovation Solution
A method and apparatus that monitor settlement characteristic parameters, predict a settlement proportion using a prediction model, and adjust construction parameters in real-time based on this proportion to ensure that the settlement stages remain within predetermined ranges, thereby controlling stratum deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional shield construction methods are used, then construction speed and mechanization are improved, but stratum deformation and surface settlement increase
Solution Approach 1:
The patent implements real-time monitoring of settlement characteristics and uses this feedback to dynamically adjust construction parameters. The system continuously measures settlement data and modifies construction parameters based on the monitored settlement characteristics, creating a closed-loop control system that adapts to changing ground conditions during shield construction.
Solution Approach 2:
The patent transitions from static construction parameter settings to dynamic parameter adjustment. Construction parameters such as advance speed, grouting pressure, and support force are continuously adjusted based on real-time settlement monitoring data, allowing the construction process to adapt dynamically to varying stratum conditions and settlement patterns.
2Object-affected harmful factors
If construction parameters are adjusted to control settlement, then stratum deformation is reduced, but construction efficiency decreases
Solution Approach 1:
The patent systematically adjusts multiple construction parameters including advance speed, grouting pressure, support force, and cutting head rotation speed based on settlement proportion predictions. By optimizing these parameters dynamically rather than using fixed values, the system achieves effective settlement control while maintaining construction efficiency through data-driven parameter optimization.
Solution Approach 2:
The patent uses prediction models to forecast settlement proportions before actual deformation occurs. By calculating predicted settlement values and comparing them with threshold values in advance, the system can proactively adjust construction parameters to prevent excessive settlement, rather than reacting after deformation has already occurred.
3Measurement precision
If real-time monitoring and prediction models are implemented, then control precision is improved, but system complexity increases
Solution Approach 1:
The patent integrates multiple functions into a unified monitoring and control system. The same monitoring infrastructure serves multiple purposes: measuring settlement characteristics, predicting settlement proportions, triggering alerts when thresholds are approached, and coordinating parameter adjustments. This multi-functional approach reduces overall system complexity compared to having separate systems for each function.
Data Source
AI summary
A method and apparatus for controlling stratum deformation in a shield construction process, a non-volatile storage medium, and a processor are disclosed. The method includes: monitoring settlement characteristic parameters in a shield construction process; predicting a settlement proportion according to the settlement characteristic parameters, the settlement proportion being a ratio between a predicted settlement value and a corresponding settlement threshold; and determining construction parameters in the shield construction process according to the settlement proportion. In the method, a settlement proportion is predicted through settlement characteristic parameters monitored in a shield construction process, and then appropriate construction parameters are determined according to the settlement proportion, so that the construction parameters in the shield construction process can be corrected in real time, and the safety and scientificity of stratum deformation control in shield construction can be ensured.