Soil Modification Apparatus Tracks for Wet Subgrade Traction
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Solution Overview
Problem
Construction on wet subgrades is challenging due to machinery entrenchment and rut formation, delaying projects and increasing costs, as existing soil modification apparatuses often become stuck or create deep ruts, and their weight exacerbates the issue.
Innovation Solution
A soil modification apparatus with tracks instead of wheels for improved traction, a larger hopper to minimize refilling stops, and adjustable weights to maintain balance during material distribution, allowing for efficient spreading of soil modification material without becoming entrenched or creating ruts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If heavy machinery is used to spread soil modification material on wet subgrades, then the material can be distributed efficiently, but the machinery becomes entrenched or stuck in the saturated ground
Solution Approach 1:
The apparatus divides the heavy machinery system into multiple support points through tracks with multiple rollers, distributing the weight across numerous contact points with the ground rather than a few wheels, reducing pressure on the wet subgrade
Solution Approach 2:
The invention transitions from point contact (wheels) to linear contact (tracks) by adding a dimensional element, creating a continuous surface that distributes weight along the length of the track rather than at discrete wheel contact points
2Productivity
If the soil modification apparatus uses a larger hopper to reduce refilling stops, then continuous operation is improved, but the increased weight exacerbates entrenchment in wet subgrades
Solution Approach 1:
The hopper is divided into multiple compartments or sections that can be independently supported by the track system, allowing the weight to be distributed across the track length rather than concentrated at a single location
Solution Approach 2:
The track system provides counterbalancing support through its distributed roller configuration, where the cumulative support force of multiple rollers counteracts the increased weight of the larger hopper, preventing entrenchment despite the weight increase
3Reliability
If the apparatus uses tracks instead of wheels for improved traction, then mobility on wet subgrades is enhanced, but the device complexity increases
Solution Approach 1:
The invention replaces the simple wheel-axle mechanical system with a track-roller system that uses distributed rolling contact instead of rotating wheels, substituting a more complex mechanism that provides superior traction through increased surface contact
Solution Approach 2:
The track system uses flexible or semi-rigid track links that can conform to the ground surface, providing adaptive contact similar to flexible shells, allowing the apparatus to navigate uneven wet subgrade surfaces more effectively than rigid wheels
4Productivity
If heavy machinery passes over wet subgrades to spread material, then soil modification can be performed, but deep ruts are created that prevent subsequent machinery from passing
Solution Approach 1:
The track system segments the contact area into multiple small contact patches along the track length, distributing the load across many points rather than creating concentrated pressure zones that form deep ruts
Solution Approach 2:
The track system dynamically adapts to ground conditions through the flexibility of track links and rollers, allowing the apparatus to adjust its weight distribution in real-time to minimize ground disturbance and rut formation while maintaining mobility
Data Source
AI summary
Apparatuses are configured to modify wet subgrades prepare the same for constructions, namely for building roads and/or buildings thereon. The soil modification apparatuses spread mineral material from a truck having increased traction for maneuvering over the wet subgrades. Methods of using the same are further provided.