Vibratory Soil Compaction Tool with Integrated Sensor Feedback Control
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Solution Overview
Problem
Current soil compaction methods, such as vibratory tamping, face challenges in determining the optimal compaction state and efficiency, leading to prolonged processing times and increased costs due to inadequate energy input and lack of precise control over the compaction process.
Innovation Solution
A method involving a vibrating tool with integrated sensors that measure various status variables, transmitting data to a control device for comparison with simulated expected data, allowing for real-time adjustment and optimization of the compaction process to achieve a defined target state, thereby enhancing efficiency and precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional vibratory tamping methods are used without real-time monitoring, then the compaction process can be completed, but the processing time is prolonged and costs increase due to inability to determine optimal compaction state
Solution Approach 1:
The patent implements a feedback control system where sensors continuously measure compaction parameters (acceleration, frequency, depth) and transmit data to a control device. The control device compares actual measurements with target values and automatically adjusts vibration parameters to achieve optimal compaction, enabling real-time monitoring and automatic termination when target density is reached, thus reducing processing time while ensuring precision
Solution Approach 2:
The patent replaces manual mechanical judgment of compaction quality with automated sensor-based measurement systems. Acceleration sensors, frequency sensors, and depth sensors substitute for traditional mechanical assessment methods, providing objective, precise, and continuous data about the compaction state, thereby eliminating the need for prolonged processing with uncertain outcomes
2Productivity
If insufficient energy input is provided during compaction, then energy costs are reduced, but the compaction process becomes inefficient and processing time increases
Solution Approach 1:
The patent employs dynamic adjustment of vibration energy input based on real-time soil response. The control device continuously monitors compaction progress and automatically modifies vibration amplitude, frequency, and duration to match the actual compaction needs at each stage, ensuring optimal energy utilization without waste, thereby improving efficiency while controlling energy consumption
Solution Approach 2:
The system dynamically changes vibration parameters (frequency, amplitude, duration) based on measured soil compaction state. As the soil approaches target density, the system automatically adjusts energy input levels, reducing unnecessary energy consumption while maintaining compaction efficiency throughout the process
3Reliability
If the compaction process is extended to ensure sufficient soil compaction, then compaction quality improves, but processing time and costs increase
Solution Approach 1:
The control device receives continuous feedback from sensors measuring acceleration, frequency, and depth parameters. By comparing actual measurements with predetermined target values, the system automatically determines when optimal compaction is achieved and terminates the process, ensuring reliable compaction quality without unnecessary extension of processing time
Solution Approach 2:
The compaction system performs self-assessment through integrated sensors that continuously monitor the compaction state. The system automatically adjusts its own operation and determines when to stop based on measured parameters, eliminating the need for extended processing times and external inspection, thereby ensuring quality while minimizing time loss
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 significantly reduces processing time and costs by enabling precise control over soil compaction, ensuring the desired compaction state is reached efficiently, with a substantial cost-saving effect across multiple work positions.
Implementation Method 1
As soon as the vibrator-lance set penetrates, the soil is compacted by displacement. The compaction effect is significantly increased by the introduction of mechanical energy by means of a vibrator when driving in or out of the ground. Due to the vibrations of the vibrator-lance set, the frictional force is briefly reduced with the support of air and/or water between individual grains of soil.
Implementation Method 2
Due to the vibrations of the vibrator-lance set, the frictional force is briefly reduced with the support of air and/or water between individual grains of soil.
Data Source
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AI summary
The invention relates to a method for soil compaction in which a vibratory tool (12) is lowered into the soil (10) and, during the lowering and compaction process, a plurality of state variables of the vibratory tool (12) are measured by sensors (20), with at least some of the sensors (20) being integrated into the vibratory tool (12), and wherein measurement data (36) from the sensors (20) are transmitted to a control device (26). The control device (26) is designed to compare the measurement data (36) from the sensors (20) with expected measurement data, wherein the expected measurement data represents at least one state variable of the soil (10). Furthermore, a system for soil compaction (10) with which the method can be carried out is part of the invention.