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Precision measurement control method of metro track structure construction

A precision measurement and control method technology, applied in the direction of track, measuring instrument, track maintenance, etc., can solve problems such as many processes, large measurement errors, and control points that cannot be reused

Active Publication Date: 2013-03-06
CHINA RAILWAY NO 3 GRP CO LTD +3
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Problems solved by technology

[0007] In order to solve the problems that the existing track structure construction measurement control method has many procedures, the control points of the survey and design cannot be reused, the measurement error is relatively large, and the smoothness and high precision of the track line cannot be guaranteed, a subway track structure construction method is provided. precise measurement control method

Method used

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Embodiment Construction

[0014] The precise measurement and control method for subway track structure construction includes firstly setting up a number of control points to build a track foundation control network, using a total station to perform plane measurement and elevation measurement according to the track foundation control network, and then collecting data and feeding it back to the track geometric state measuring instrument for measurement. process, calculate the error of the corresponding position, and finally adjust and control the follow-up construction of the overall ballast bed, seamless track, and turnout according to the error. The specific method is as follows:

[0015] (1) The construction method of the track foundation control network is specifically to arrange the control points on the side walls of the left and right sides of the tunnel respectively. 60m, all control points are 0.7~1.2m higher than the rail surface of the preset rail row; the control points are specifically embedd...

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Abstract

The invention specifically relates to a precision measurement control method of a metro track structure construction, which solves the problems of poor safety, smoothness and comfort of a line and high equipment abrasion and noise vibration in the operation process because the existing measurement control method of the track structure construction has multiple steps and the control benchmarks for measurement can not be reused. According to the precision measurement control method, precision measurement control is performed on the track structure by utilizing a method of establishing a track basic control network in combination with a total station and a track geometrical state measurement instrument, thereby realizing high-precision adjustment on the track; and the track geometrical state measurement instrument is applied so that the precision requirements on points in the metro track measurement are improved to be requirements on the overall smoothness of the line, thereby guaranteeing that the indexes of track gauge, high-low rate of change, track orientation, high and low smoothness and the like of the track are capable of meeting higher requirements; and besides, digitization and automation are realized.

Description

technical field [0001] The invention relates to a construction method of an urban subway track structure, in particular to a precision measurement control method for the construction of a subway track structure. Background technique [0002] The construction of subway track structure is the construction process after the construction of subway civil works, that is, the laying construction of integral track bed, seamless track and turnout. At present, the construction of the subway track structure is to use the plane starting point, the line level control point, etc. The conductor points are transferred to the tunnel to be constructed through the station entrance, and a closed control network is established by arranging several control points along the conductor; then, the control network is refined and encrypted by measurement and calculation methods, and the plane measurement and elevation measurement of the center line of the track line are carried out. At the same time, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B35/00E01B35/08
Inventor 常乃超苏雅拉图张俊兵于善毅薛泽民闫进学郭志广王晋元徐超乔建国
Owner CHINA RAILWAY NO 3 GRP CO LTD
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