Shear-Shape Sensor Penetration Scissors for Deep Sliding Mass Monitoring
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Solution Overview
Problem
Existing methods for monitoring landslide deformation, such as 'multi-measurement in one hole,' face challenges in accurately measuring parameters like pore water pressure and water content, are prone to damage, and have poor environmental adaptability, especially in compact soil conditions, limiting their effectiveness in deep positions of sliding masses.
Innovation Solution
An arrangement apparatus featuring shear-shaped sensor penetration scissors and a monitor arrangement system that allows sensors to be deployed outside the borehole, with a traction mechanism and jacking system to penetrate and shear the sliding mass, enabling accurate multi-parameter monitoring through wireless data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a monitoring instrument is installed in a borehole for deep inclination measurement and underground water level measurement, then the measurement depth is improved, but the accuracy of pore water pressure and water content measurement deteriorates
Solution Approach 1:
The sensor is extracted from the borehole environment and placed directly into the sliding mass for in-situ measurement. The arrangement apparatus pushes the sensor outside the borehole into the surrounding soil/rock, allowing the sensor to measure pore water pressure and water content directly at the measurement point without being constrained by borehole installation limitations.
2Ease of operation
If a monitoring instrument is installed in a borehole, then the installation simplicity is improved, but the environmental adaptability and reliability deteriorate
Solution Approach 1:
The sensor is extracted from the vulnerable borehole environment and positioned directly within the sliding mass, where it can withstand deformation without being constrained by the borehole structure. This extraction resolves the conflict between simple installation and reliability under deformation conditions.
3Stability of the object's composition
If the soil on the side wall of the borehole is compact, then the geological stability is improved, but the sensor arrangement difficulty increases
Solution Approach 1:
The arrangement apparatus serves as an intermediary tool that bridges the gap between the compact borehole environment and the sensor placement requirement. The pushing mechanism provides the necessary force to penetrate compact soil and position the sensor, resolving the arrangement difficulty without compromising geological stability.
4Area of stationary object
If multi-instrument independent distribution is used, then the measurement coverage is improved, but the monitoring efficiency and cost deteriorate
Solution Approach 1:
Multiple measurement functions are merged into a single integrated sensor unit. The sensor simultaneously measures pore water pressure, water content, and other parameters, achieving comprehensive measurement coverage while improving efficiency and reducing costs compared to multiple independent instruments.
5Measurement precision
If the sensor is placed outside the borehole for in-situ measurement, then the measurement accuracy is improved, but the installation complexity increases
Solution Approach 1:
The arrangement apparatus acts as a temporary intermediary device that facilitates sensor placement outside the borehole. Once the sensor is positioned, the apparatus is removed, leaving only the simple sensor in place for long-term monitoring, thus achieving accurate in-situ measurement without permanent installation complexity.
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 solution enhances the adaptability and accuracy of monitoring in compact environments, reduces disturbance, and allows for more comprehensive data collection closer to the underground environment, improving the reliability and range of multi-parameter information monitoring.
Implementation Method 1
sensor penetration scissors... the shearing portions penetrate out of the mounting hole to shear the sliding mass
Data Source
AI summary
A penetration-type monitor includes a casing pipe and sensor penetration scissors, the sensor penetration scissors are arranged in a shear shape, and a first blade and a second blade rotate close to each other or away from each other in the vertical direction so as to define an initial position and a monitoring position of the sensor penetration scissors; when the sensor penetration scissors are located at the initial position, ends of pressed portions of the first blade and the second blade are arranged at an interval one above the other, when the sensor penetration scissors are located at the monitoring position, the pressed portions move close to each other, and shearing portions penetrate out of a mounting hole to shear a sliding mass; and a monitor arrangement system drives the sensor penetration scissors to move from the initial position to the monitoring position.