Grating type subway tunnel segment dislocation measuring scale

Abstract

The invention discloses a grating type subway tunnel segment dislocation measuring scale. The measuring scale comprises a first main scale, a second main scale, a first vernier scale and a second vernier scale, wherein one end of the first main scale is fixedly connected with one end of the second main scale, the first main scale and the second main scale are arranged perpendicular to each other, the first vernier scale is provided with a first measuring claw, a first grating scale displacement sensor used for detecting the position of the first vernier scale relative to the first main scale is installed between the first main scale and the first vernier scale; the second vernier scale is provided with a second measuring claw, and a second grating scale displacement sensor used for detecting the position of the second vernier scale relative to the second main scale is installed between the second main scale and the second vernier scale. The measuring scale is advantaged in that two grating ruler displacement sensors which are perpendicular to each other are adopted, transverse data and vertical data between the adjacent segments can be measured at the same time, manual reading is not needed, and measurement operation is simple and rapid.

Description

technical field [0001] The invention relates to a measuring tool, in particular to a grating type metro tunnel segment staggered measuring ruler. Background technique [0002] One of the inspection standards for the installation quality of subway tunnel segments is whether the gap difference and height difference between segments meet the requirements of the specification, which is embodied in the horizontal data and vertical data between two adjacent segments, collectively referred to as segments erroneous data. In actual engineering, a plastic right-angled triangle is usually used as a measuring tool, according to Figure 7 Measure as shown. [0003] There are three problems and shortcomings in this method of measuring staggered data. The first is that the triangular ruler cannot leave the segment during the data reading process, which makes it difficult to read the data and the data reading is prone to large errors; the second is that it needs to be read simultaneously. ...

AI Technical Summary

Problems solved by technology

[0003] There are three problems and shortcomings in this method of measuring staggered data. The first is that the triangular ruler cannot leave the segment during the data reading process, which makes it difficult to read the data and the data reading is prone to large errors; the second is that it needs to be read simultaneously. Reading two different sets of horizontal and vertical data is easy to cause confusion; the third is that two people are required to operate, one is responsible for reading the data, and the other is responsible for recording the data, and the work efficiency is low

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