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Railway engineering earthwork calculation method based on engineering reference ellipsoidal surface

A technique of railway engineering, computational methods, used in cross-sectional drawing, instrumentation, surveying and navigation, etc.

Inactive Publication Date: 2020-08-14
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of railway engineering earthwork calculation, and proposes a railway engineering earthwork calculation method based on engineering reference ellipsoid

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  • Railway engineering earthwork calculation method based on engineering reference ellipsoidal surface
  • Railway engineering earthwork calculation method based on engineering reference ellipsoidal surface
  • Railway engineering earthwork calculation method based on engineering reference ellipsoidal surface

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Embodiment Construction

[0063] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0064] Such as figure 1 As shown, the present invention provides a kind of railway engineering earthwork calculation method based on the engineering reference ellipsoid, comprising the following steps:

[0065] S1: Measure the cross-section of the middle pile of the railway engineering earthwork to be calculated;

[0066] S2: Calculate the cross-sectional area of ​​two adjacent pile numbers in the middle pile cross-section by using the product distance method or the coordinate method;

[0067] S3: According to the cross-sectional area of ​​two adjacent pile numbers, the earthwork volume of the railway project is calculated by the average section method or the edge method.

[0068] In the embodiment of the present invention, such as figure 2 As shown, step S1 includes the following sub-steps:

[0069] S11: Use real-time dynamic measurement technology...

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Abstract

The invention discloses a railway engineering earthwork calculation method based on an engineering reference ellipsoidal surface. The method comprises the following steps: S1, measuring a middle pilecross section of to-be-calculated railway engineering earthwork; S2, calculating areas of two adjacent pile number cross sections of the middle pile cross section by adopting a product distance methodor a coordinate method; and S3, calculating the earthwork volume of the railway engineering by adopting an average section method or a prismoid method. Compared with an existing method for calculating the earthwork volume of the railway engineering, the method of the invention has the following advantages: the engineering reference ellipsoidal surface serves as a calculation surface, so that theinfluence of projection deformation can be avoided or reduced, and results on various projection surfaces can be obtained from data obtained through calculation on the engineering reference ellipsoidal surface according to various projection rules. By adopting the technical scheme to calculate the earthwork of the railway engineering, no projection deformation or minimum deformation of a measurement and calculation result can be achieved, and conversion and deformation calculation of various data on the reference ellipsoid are integrated, so that the calculation data has reusability and universality.

Description

technical field [0001] The invention belongs to the technical field of earthwork calculation for railway engineering, and in particular relates to an earthwork calculation method for railway engineering based on an engineering reference ellipsoid. Background technique [0002] In the planning, design and construction of railway projects, it is often necessary to make approximate budgets and accurate calculations of earthwork volumes for filling and excavation. The amount of earthwork is an important index in railway engineering projects, which is related to the location of land acquisition, the location of abandoned land and the scope of railway land. It also has a great impact on the project cost, the number of required labor and machinery and equipment, and the construction period. [0003] At present, in the calculation process of railway earthwork, it is necessary to convert the measured geodetic coordinates of each corner point into the plane coordinates in the survey c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C7/02
CPCG01C7/02
Inventor 周玉辉谢少勇谢毅张献州郑旭旭陈铮蒋恒廖玉祥李志益周世明袁成忠王筑蔡建国曾加胤邓方正
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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