3D Grid Soil Distribution Planning for Earthwork Precision
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Solution Overview
Problem
Current soil distribution planning methods based on 2D contour maps are inefficient, prone to large errors, and difficult to implement in complex topographies, especially in multi-stage excavations, due to rough quantity calculations and lack of 3D vertical planning considerations.
Innovation Solution
A soil distribution planning system that uses 3D topographical models to automatically calculate earthwork volumes and optimize soil distribution plans by separating work sections based on dozer and dump truck transport characteristics, incorporating a grid-model generation module, earthwork-volume calculation module, and distribution module to efficiently manage useful soil and spoil banks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If 2D contour map with manual earthwork volume calculation is used, then planning process is simple, but measurement precision and manufacturing precision deteriorate due to rough quantity calculation
Solution Approach 1:
The patent transitions from 2D contour map-based planning to 3D grid model-based planning. By introducing the vertical dimension through digital elevation models and creating three-dimensional grid structures, the system achieves precise earthwork volume calculations while maintaining manageable process complexity through automated computation.
Solution Approach 2:
The patent replaces manual mechanical measurement and calculation methods with automated computer-based processing. The system uses software to automatically calculate earthwork volumes, process topographical data, and generate distribution plans, eliminating the need for manual field measurements and hand calculations.
2Ease of operation
If 2D contour map with manual calculation is used, then ease of operation is maintained, but productivity deteriorates due to many trials and errors
Solution Approach 1:
The system performs self-service by automatically calculating earthwork volumes, determining optimal soil distribution plans, and generating work sequences without requiring multiple manual trials. The automated optimization algorithms independently find the best distribution strategy based on input parameters, eliminating the need for repeated manual adjustments.
Solution Approach 2:
The system incorporates feedback mechanisms where calculated earthwork volumes and distribution results are automatically fed back into the optimization process. This allows the system to iteratively improve the soil distribution plan based on calculated parameters, achieving high productivity through automated feedback loops rather than manual trial-and-error.
3Loss of time
If global model divided by 40m×40m grid is used, then calculation speed is improved, but manufacturing precision deteriorates when topography or target shape is complicated
Solution Approach 1:
The patent applies segmentation by dividing the construction area into multiple small grid models rather than using a single large global grid. This allows the system to maintain high calculation precision in areas with complicated topography or target shapes while keeping the overall calculation process manageable through modular processing of individual grid segments.
Solution Approach 2:
The system implements local quality by allowing different grid resolutions or calculation methods for different areas. In regions with simple topography, coarser grids can be used for faster calculation, while areas with complicated topography or critical precision requirements can utilize finer grids, optimizing both speed and accuracy locally.
4Measurement precision
If stratal structure calculation is performed in complex topography, then measurement precision is improved, but loss of time increases due to excessive calculation time
Solution Approach 1:
The system performs preliminary actions by pre-processing topographical data and pre-calculating basic parameters before the main stratal structure analysis. This includes generating preliminary grid models, pre-identifying soil types, and pre-calculating basic volumes, which reduces the computational burden during the detailed stratal structure calculation and speeds up the overall process.
Data Source
AI summary
The disclosure relates to a soil distribution planning system. The soil distribution planning system according to an embodiment includes a grid-model generation module configured to receive information about three-dimensional (3D) topography, ground and a target model and generate a 3D grid model by dividing a target area; an earthwork-volume calculation module configured to calculate an earthwork volume of each grid model generated by the grid-model generation module and store the calculated earthwork volume in a database; and an earthwork-volume distribution module configured to distribute the earthwork volume of a cutting area to a banking area based on the earthwork volume stored in the database.