Deep-Buried Tunnel Blasting Parameter Evaluation Method
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Solution Overview
Problem
Existing technologies lack comprehensive application of diverse monitoring information for evaluating deep-buried tunnel blasting parameters, making it difficult to ensure safety and quality in underground engineering construction.
Innovation Solution
A method involving multiple diverse blasting schemes is implemented in test sections with similar geological characteristics, with monitoring data from blast vibration, broken rock zone, and three-dimensional laser scanning used to compare and select the optimal blasting schemes, including individual-hole charge, total charge, blasthole arrangement, and initiation mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple diverse blasting schemes are implemented with comprehensive monitoring, then the quality and safety of blasting excavation is improved, but the complexity of the evaluation system increases
Solution Approach 1:
The patent segments the blasting evaluation into multiple independent monitoring dimensions (vibration monitoring, broken rock zone monitoring, 3D laser scanning) and separate evaluation indicators (excavation quality, safety, efficiency). Each monitoring system operates independently and contributes specific data to the comprehensive evaluation, making the complex system manageable and systematic.
Solution Approach 2:
The patent creates a universal comprehensive evaluation system that integrates multiple monitoring technologies and evaluation indicators into a single framework. This multi-functional system can evaluate different blasting schemes across multiple dimensions simultaneously, providing a unified approach for selecting optimal parameters while maintaining reliability.
2Measurement precision
If comprehensive multi-dimensional monitoring is conducted to evaluate blasting parameters, then the precision of parameter selection is improved, but the cost and complexity of monitoring increases
Solution Approach 1:
The patent adds multiple evaluation dimensions beyond traditional single-indicator assessment. It incorporates spatial dimensions through 3D laser scanning, temporal dimensions through vibration monitoring over time, and depth dimensions through broken rock zone monitoring. This multi-dimensional approach significantly improves measurement precision by evaluating blasting parameters from multiple perspectives simultaneously.
Solution Approach 2:
The patent introduces a comprehensive evaluation system as an intermediary that integrates data from multiple monitoring sources (vibration sensors, 3D scanners, rock zone monitors) and translates them into actionable evaluation results. This intermediary system coordinates the complex monitoring equipment and presents unified evaluation outcomes, making the complexity manageable.
3Reliability
If test sections are used to compare different blasting schemes, then the reliability of parameter selection is improved, but the time and resources required for testing increase
Solution Approach 1:
The patent implements preliminary action by establishing standardized test sections with predetermined monitoring equipment and evaluation criteria before conducting blasting scheme comparisons. The test sections are prepared in advance with all necessary sensors and measurement systems in place, allowing for efficient data collection and comparison of different blasting schemes without repeated setup time.
Solution Approach 2:
The patent systematically varies blasting parameters (charge quantity, hole arrangement, initiation sequence) across different test schemes while keeping test section conditions consistent. By changing only the blasting parameters and not the test setup, the method efficiently compares multiple schemes while minimizing time loss from repeated installation and configuration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for the evaluation of deep-buried tunnel blasting parameters from multiple dimensions, ensuring safety and quality by selecting optimal blasting schemes that minimize disturbance and maximize excavation efficiency.
Implementation Method 1
sending a probe of an acoustic wave tester to a bottom of a hole... obtaining rock wave velocities at different depths from a surrounding rock wall
Implementation Method 2
conducting blast vibration monitoring... calculating a vector resultant velocity and a risk distance based on vibration monitoring data
Implementation Method 3
three-dimensional laser scanning... obtaining overbreak and underbreak situations of typical fracture surfaces based on 3D point cloud data
Data Source
AI summary
The invention provides a method for evaluating deep-buried tunnel blasting parameters, and belongs to the technical field of mine engineering. The method comprises: setting multiple diverse blasting schemes; selecting a plurality of test sections with the same geological characteristics, the number of the test sections corresponding to the number of the blasting schemes; blasting the test sections using the blasting schemes, and obtaining diversified monitoring data of each test section; and comparing the diversified monitoring data to select the optimal blasting schemes for the test sections. According to the method for evaluating the deep-buried tunnel blasting parameters, by implementing different blasting schemes in test sections with the same geological characteristics, diversified monitoring data of the test sections are obtained and compared to select the optimal blasting schemes for the test sections, so as to ensure the safety and quality of blasting excavation of deep-buried tunnels.