3D Retaining Wall Intersection Calculation for Concrete Quantity Estimation
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Solution Overview
Problem
Existing two-dimensional road design technologies face challenges in accurately determining the end position and height of retaining walls due to inconsistencies, leading to inaccurate three-dimensional models that are unsatisfactory for construction, particularly for retaining walls made of concrete where precise calculations of concrete quantities are required.
Innovation Solution
A three-dimensional calculation device and method that automatically calculates the retaining wall model on a three-dimensional road model by placing a slope model with a three-dimensional shape, receiving attribute inputs, and calculating a continuous three-dimensional intersection line to determine the end position and shape change points of the retaining wall, allowing for precise placement and quantity estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cross sections are created only at specified pitch points to generate three-dimensional models, then the modeling process is simplified and faster, but the accuracy of retaining wall end positions and shape change points is lost
Solution Approach 1:
The patent transitions from two-dimensional cross-sectional data at discrete points to three-dimensional continuous surface modeling. By creating a three-dimensional slope surface and calculating its intersection with the retaining wall back surface, the system obtains continuous intersection lines that provide precise end positions and shape change points, eliminating the accuracy losses inherent in discrete point sampling.
Solution Approach 2:
The system performs preliminary creation of the three-dimensional slope surface and retaining wall back surface models before calculating the intersection. This preliminary modeling allows for accurate determination of the intersection line, which in turn provides precise end positions and shape change points without requiring additional field measurements or manual adjustments.
2Device complexity
If two-dimensional road design technology is used to calculate retaining wall end positions and heights, then the calculation process is simpler, but inconsistencies arise making the blueprint inappropriate
Solution Approach 1:
The patent extends the two-dimensional calculation approach into three dimensions by creating three-dimensional models of the slope and retaining wall. The intersection of these three-dimensional surfaces provides continuous and accurate intersection lines, eliminating the inconsistencies that arise in two-dimensional calculations while maintaining computational feasibility through standardized three-dimensional modeling procedures.
3Productivity
If concrete quantities are estimated using approximate three-dimensional models, then the estimation process is faster, but construction costs increase due to inaccurate material requirements
Solution Approach 1:
The system performs preliminary calculation of the precise three-dimensional intersection line between the slope surface and retaining wall back surface. This preliminary geometric analysis provides accurate end positions and shape change points, which are then used to calculate precise concrete quantities, eliminating material waste while maintaining efficient estimation processes.
Data Source
AI summary
The present disclosure allows precise calculation of an end position and a shape change point of a retaining wall in three dimensions. A three-dimensional calculation device for a retaining wall model includes: a slope placement unit that places a slope having a three-dimensional shape on a three-dimensional road model; an input unit that receives an input of an attribute of the retaining wall model; a calculation unit that calculates a three-dimensional intersection line of the slope model placed by the slope placement unit and the retaining wall model that is based on the attribute inputted to the input unit; and a display that displays information on the three-dimensional intersection line calculated by the calculation unit.