Arbitrary-Shaped Test Block for High-Steep Slope Rolling Stone Simulation
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Solution Overview
Problem
Current high-steep slope impact test blocks have fixed shapes and sizes, leading to inaccurate simulations of rock mass impacts, sensor damage due to poor protection, and cumbersome transportation and hoisting issues.
Innovation Solution
An arbitrary-shaped fabricated test block using 3D printing technology with a connecting square barrel and sensor box, allowing for customizable shapes and materials, and secure sensor integration to replicate rock mass impacts accurately while enhancing durability and ease of transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If test blocks are integrally cast with fixed shape and size, then manufacturing is simple, but they cannot accurately simulate real rock masses with varying shapes and materials
Solution Approach 1:
The test block is divided into multiple segments that can be separately manufactured and then assembled together. Each segment can have different shapes, materials, and sizes to simulate complex rock mass compositions, while individual segments remain simple to manufacture using conventional casting methods.
Solution Approach 2:
The test block system incorporates a standardized connecting structure with groove and protrusion features that allow different segments to be universally assembled in various configurations. This universal connecting mechanism enables the same basic segment design to create multiple test block variations for different testing requirements.
2Measurement precision
If sensors are directly fixed on test block surface or placed in simple holes, then installation is easy, but relative displacement occurs during impact causing inaccurate data
Solution Approach 1:
The sensor mounting structure is merged with the test block's connecting structure. Sensors are integrated into the groove-protrusion connecting features, combining the functions of segment connection and sensor mounting into a single integrated system that ensures both structural integrity and measurement accuracy.
Solution Approach 2:
Sensors are nested within recesses or cavities in the groove-protrusion connecting structure. This nesting approach protects sensors from direct impact while maintaining their positional accuracy and ensuring they move with the test block segments during impact events.
3Reliability
If large-scale test blocks are integrally cast for high-steep slope testing, then test requirements are met, but hoisting and transportation become extremely difficult
Solution Approach 1:
Large test blocks required for high-steep slope testing are segmented into smaller, manageable pieces that can be easily transported and hoisted to test sites. The segmented blocks are then assembled on-site using the groove-protrusion connecting mechanism to form the complete large-scale test structure needed for reliable high-steep slope testing.
Solution Approach 2:
Test block segments are pre-manufactured and prepared in advance at convenient locations, allowing for easier transportation and hoisting. The segments are ready-assembled with connecting features prepared, enabling rapid on-site assembly once at the test location, thus meeting the reliability requirements for high-steep slope testing without the logistical burden of moving complete large blocks.
4Reliability
If sensors lack proper protection in high-impact tests, then device complexity is reduced, but sensors and data instruments are damaged due to high impact energy
Solution Approach 1:
Sensors are pre-protected with cushioning elements and shock-absorbing structures integrated into the groove-protrusion connecting system. These protective features are built-in before testing, allowing sensors to withstand the high impact energies encountered in high-steep slope rolling stone tests without damage, thereby ensuring reliability and reducing the need for expensive sensor replacements.
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
The solution provides accurate simulation of rock mass impacts, protects sensors from damage, and simplifies transportation by creating test blocks that closely resemble real rock masses in shape, size, and material, reducing test costs and improving data accuracy.
Implementation Method 1
test block bodies are printed on printing bases by 3D printing technology
Implementation Method 2
high-strength bolts penetrate through the connecting groove bolt holes and the connecting plate bolt holes to connect the test block bodies to the connecting square barrel
Data Source
AI summary
An arbitrary-shaped fabricated test block for a high-steep slope rolling stone test includes a connecting square barrel and test block bodies. The connecting square barrel is formed by enclosing steel plates, the steel plates are provided with connecting grooves on a periphery of the steel plates, and the connecting grooves are provided with connecting groove bolt holes. The test block bodies are printed on printing bases by 3D printing technology, connecting plates are fixedly arranged on the printing bases, connecting plate bolt holes are formed in the connecting plates, and high-strength bolts penetrate through the connecting groove bolt holes and the connecting plate bolt holes to connect the test block bodies to the connecting square barrel. A sensor box is fixedly arranged on an inner side of the connecting square barrel, and a sensor is arranged in the sensor box.