Precision measurement method of underline engineering during station yard transformation

A precision measurement and construction technology, used in radio wave measurement systems, measurement devices, measurement instruments, etc., can solve the problems of poor visibility of wire points, difficulty in meeting overall construction measurement requirements, and low measurement accuracy, and reduce the observation intensity. , the effect of reducing errors and reducing technical difficulty
CN103363965BActive Publication Date: 2015-06-03THE 4TH CONSTR ENG CO LTD OF CHINA RAILWAY NO 4 ENG GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE 4TH CONSTR ENG CO LTD OF CHINA RAILWAY NO 4 ENG GRP
Publication Date
2015-06-03

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Abstract

The invention discloses a precision measurement method of underline engineering during station yard transformation. The method is characterized in that station yard external control points A1, A2, A3 and A4 are successively arranged from one end to the other end at two ends of the outer side within the station yard construction range, and a GPS technology is used for measurement; the station yard external control points A1, A2, A3 and A4 are attached to the known basic plane control network CPI and line plane control network CPII, so that the accuracy loss caused by the starting point of the construction control network of a later-period total station yard, and the plane control measurement network used is unified in the same plane control network. The method is applied to improving the construction measurement accuracy and meeting requirement of the underline engineering of the station yard, and solves the technical problems that the intervisibility of a traverse point is poor, the measurement accuracy is low and the overall construction measurement requirement can be hardly met are solved during underline measurement.
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Description

technical field

[0001] The invention relates to a precision measurement method for off-line engineering in the reconstruction construction of a station, in particular to a precision measurement method in the reconstruction construction of a station. Background technique

[0002] With the rapid development of my country's national economy, the requirements for railway transportation capacity are also continuously increasing. New railway passenger stations and renovation of existing railway yards have become important solutions to improve railway transportation capacity at this stage. In the offline construction of new stations or renovation of existing stations, due to the complexity of the construction environment, the accuracy requirements for construction measurement are also more stringent. If the accuracy of construction measurement is low, there will be technical accidents such as insufficient and staggered clearance boundaries between offline engineering and track engi...

Claims

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