Earthwork amount calculation method based on improved constraint irregular triangulation network construction method

A calculation method, triangulation technology, applied in constraint-based CAD, design optimization/simulation, special data processing applications, etc., can solve problems such as different calculation methods

Inactive Publication Date: 2021-04-30
NINGBO ELECTRIC POWER DESIGN INST
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Problems solved by technology

The calculation methods of the above methods are different, and the calculation accuracy is also quite different under different types of site conditions, and has a specific scope of application

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  • Earthwork amount calculation method based on improved constraint irregular triangulation network construction method
  • Earthwork amount calculation method based on improved constraint irregular triangulation network construction method
  • Earthwork amount calculation method based on improved constraint irregular triangulation network construction method

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Embodiment Construction

[0024] The following descriptions are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention. The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Examples, see Figure 1 to Figure 4 Shown: A calculation method of earthwork quantity based on the construction method of improved constrained irregular triangulation, the specific steps are as follows:

[0026] Position the triangular elements at the start and end points of the constraint boundary line:

[0027] To realize that the project area is inserted into the unconstrained triangular network as a constraint boundary, at first the triangle unit where the boundary line endpoint is located needs to be positioned, and the present invention defines the following algorithm to realize this function;

[0028] Define the endpoint coordinates of the boundary line as Pn(X,Y), n is the endpoint number; de...

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Abstract

The invention discloses an earthwork amount calculation method based on an improved constraint irregular triangulation network construction method. The earthwork amount calculation method comprises the steps: generating an unconstrained Delaunay triangulation network according to elevation data points; inserting the boundary of the engineering area as a constraint in an unconstrained Delaunay triangulation network; performing local optimization to generate a constrained irregular triangulation network; completely projecting the ground elevation on the constraint triangulation network area to obtain an original terrain triangulation network model; after the field level engineering design elevation is specified, calculating the earthwork filling and digging amount on each triangular net unit; and accumulating the triangular net earthwork volume in the engineering area to obtain the total earthwork filling and digging volume. The method has the advantages that the problem that the earthwork amount calculation error is large due to large topographic altitude difference fluctuation can be avoided, the earthwork amount suitable for complex topography and landform of the mountainous region of eastern Zhejiang is accurately calculated, the earthwork amount calculation error is effectively reduced, and the field level engineering earthwork amount calculation precision is optimized.

Description

technical field [0001] The invention belongs to the field of calculating method of earthwork amount for site leveling in civil engineering construction, and in particular relates to an earthwork amount based on an improved constrained irregular triangular network construction method suitable for terrain conditions in eastern Zhejiang mountainous areas with large height difference fluctuations Calculation method. Background technique [0002] The site leveling project refers to the transformation of the original landform of the project site according to the construction needs. Among them, the use of topographic survey results to accurately calculate the amount of earthwork, and then balance the amount of earthwork filling and excavation, and rationally select construction manpower and machinery equipment, is a reliable basis for controlling the construction plan and progress of the site, and is the key to affecting the cost and investment of the project. It is actually relate...

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Application Information

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IPC IPC(8): G06F30/10G06F30/20
CPCG06F30/10G06F30/20G06F2111/04
Inventor 杨艳婷舒凯姚艳周东杰刘洋胡慧峰俞梦迪
Owner NINGBO ELECTRIC POWER DESIGN INST
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