Fine-tuning construction method for CRTS I (China railway track system) type slab ballastless track

Abstract

The invention discloses a fine-tuning construction method for a CRTS I (China railway track system) type slab ballastless track, comprising the following construction steps: (1) establishment and measurement of a GRP (government railway policy); (2) fine tuning of track slabs; and (3) smooth lap joint between the adjacent track slabs. By means of the fine-tuning construction method disclosed by the invention, the fine-tuning construction quality of the CRTS I type ballastless track slabs is guaranteed in a more accurate and rapid way.

Description

technical field [0001] The invention relates to fine adjustment of slab-type ballastless track slabs, more specifically to a construction method for fine adjustment of CRTS I type ballastless track slabs. Background technique [0002] The Shanghai-Nanjing Intercity Railway is the first ballastless high-speed railway in my country that uses CRTS I-type new track slabs for the entire line, and it is also the first domestic high-speed railway that applies GRP technology to the fine adjustment of CRTS I-type slab ballastless tracks. For the fine adjustment of CRTS I type ballastless track slabs, Japanese datum and triangle gauge technology were used in the past. However, the use of triangular gauge technology has the following defects: 1. The process is complicated, especially the precise setting of the embedded reference device according to the smoothness requirements, which is laborious, labor-intensive and time-consuming; 2. The measurement reference is transmitted multiple t...

AI Technical Summary

Problems solved by technology

However, the use of triangular gauge technology has the following defects: 1. The process is complicated, especially the precise setting of the embedded reference device according to the smoothness requirements, which is laborious, labor-intensive and time-consuming; 2. The measurement reference is transmitted multiple times, which increases the transmission error; 3. Measurement tools Messy, using too many non-standard measuring tools (setting high and low gauges, super high levels, adjusting triangular gauges and positive vector measuring instruments); 4. Many measuring tools are sensitive to environmental factors, and all the measuring tools using water bubbles are sensitive to temperature (setting Height and low measuring tools, super high levels, adjusting triangular gauges and positive vector measuring instruments), wire-drawing measurement is seriously affected by wind force; 5. There are many human error links, manual adjustment of the vernier, human eye observation of blisters and vernier scales vary from person to person; 6. There are too many manual participation links, most of which are manual operations, which are prone to errors; 7. It is impossible to make real records of the actual adjustments and residual deviations, and it is impossible to implement information management and evaluation

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