Dynamic Rod Anchor Testing Device for Loose Soil
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Solution Overview
Problem
Existing testing devices for rockfall and avalanche protection structures on loose soil are complex, economically demanding, and inadequate for dynamic loading tests, requiring extensive preparatory work and heavy supporting structures for static anchor tests.
Innovation Solution
A testing device for rod anchors that includes a metal extension rod and an impact weight, accelerated by a pneumatic, mechanical, or chemical acceleration device, allowing for dynamic force application without external support, enabling dynamic testing independent of subsoil strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If static anchor tests are carried out using hydraulic presses with heavy supporting structures, then measurement precision is improved, but device complexity and loss of time increase significantly
Solution Approach 1:
The invention extracts the essential testing function from the complex static testing system. Instead of using hydraulic presses and heavy supporting structures, the patent employs a simple impact weight that falls freely onto the anchor, eliminating the need for complex force application mechanisms while maintaining measurement capability through the recorded impact energy and resulting deformation.
Solution Approach 2:
The invention replaces the hydraulic mechanical system with a gravitational system. The impact weight is accelerated by gravity alone, eliminating the need for hydraulic presses and complex mechanical force application devices. This substitution dramatically reduces device complexity while still enabling precise measurement of anchor performance.
2Force
If static anchor tests are performed with heavy supporting structures, then force application capability is improved, but loss of time increases due to extensive preparatory work
Solution Approach 1:
The invention extracts the force application function from the complex supporting structure system. The impact weight naturally provides the necessary test force through gravity, eliminating the need for heavy supporting structures and extensive preparatory work. The force is applied directly through the simple impact mechanism, dramatically reducing setup time.
Solution Approach 2:
The impact weight system is self-sufficient and does not require external supporting structures or complex setup. The gravitational force automatically provides the test load, and the system self-regulates the force application through the free-fall mechanism, eliminating time-consuming preparatory operations.
3Device complexity
If static testing methods are used, then device complexity is reduced, but the ability to reflect actual service conditions deteriorates
Solution Approach 1:
The invention transitions from static to dynamic testing by using a falling impact weight that creates dynamic loading conditions. This dynamic approach better reflects actual service conditions where anchors are subjected to impact and shock loads, while the device remains relatively simple. The dynamic nature of the test provides more reliable results that correspond to real-world performance.
4Reliability
If dynamic loading tests are implemented, then reliability of test results is improved, but device complexity increases
Solution Approach 1:
The invention extracts the dynamic testing capability from complex systems. Instead of using complicated dynamic testing equipment, the patent uses a simple impact weight that falls freely under gravity, creating dynamic loading conditions without requiring complex mechanisms. This extraction of the essential dynamic testing function maintains simplicity while improving result reliability.
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
Facilitates dynamic anchor testing without the need for heavy supporting structures, reducing testing time and costs, and providing results that reflect actual service conditions, thus improving the evaluation of anchor quality and load-bearing capacity.
Implementation Method 1
an impact weight (4), which can also be referred to as an impact or shock weight, which is movably guided on the rod anchor extension (3) for the purpose of carrying out the test
Implementation Method 2
accelerate the impact weight (4) in the direction of a stop (6) attached to the rod anchor extension (3)
Data Source
Figure 1
AI summary
A test device (1) for rod anchors (2), in particular in loose soil (LB), comprising a rod anchor extension (3) which is temporarily connected to the rod anchor (2); comprising an impact weight (4) which is movably guided on the rod anchor extension (3), and comprising an acceleration device (5) for accelerating the impact weight (4) in direction (R) towards a stop (6) attached to the rod anchor extension (3).