Method for construction of measurement and pavement of GRP (ground reference point) of ballastless track reference network
A ballastless track and construction method technology, applied in tracks, track maintenance, roads, etc., can solve the problems of long time for GRP measurement, slow measurement and installation, difficult to guarantee accuracy, etc., achieving significant social and economic benefits, improved accuracy, The effect of reducing investment
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[0022] The present invention will be further described below with reference to the accompanying drawings.
[0023] like figure 1 , 2 . The construction method of the GRP measurement of the track reference network of the ballastless track shown in 3 includes the following steps:
[0024] (1) GRP point stakeout
[0025] The track reference network GRP is based on the track control network CPIII. It provides a control network for the laying and fine adjustment of the track slab. The GRP is arranged between the track axes, and the connection between the positioning cone and the GRP is perpendicular to the track axis. The center line is 0.10m, and the GRP point is generally buried on the lower side, that is, the position of the plate seam of the two track plates;
[0026] The coordinates of the GPR points should be calculated in advance so that they are at the design positions when staked out. The coordinates of these points can be calculated directly by the software. The ...
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