Depth detecting method with plastic drainage plate

Abstract

The present invention is depth detecting method for plastic drainage plate, and the depth of plastic drainage plate is measured via measuring resistance based on DC bridge principle. Two metal wires capable of forming passage are first set inside plastic drainage plate, and the material coefficient of plastic drainage plate and the construction technological index are then determined via indoor test and in-situ measurement. During construction, the metal wires are connected in the bottom and the plastic drainage plate is set into required depth, the resistance of the metal wire is measured with depth measuring instrument, and the practical depth of the plastic drainage plate is finally calculated. Compared with available technology, the present invention has high measurement precision and fast detection speed, and may be used widely in the soft foundation treating engineering with plastic drainage plate.

Description

1. Technical field [0001] The invention relates to a soft foundation treatment project in highway construction, in particular to a method for detecting the depth of a plastic drainage board. 2. Background technology [0002] In the construction of high-grade highways, soft foundation treatment is one of the most common and important problems in engineering. Due to its simple construction and good drainage effect, plastic drainage board has become one of the most commonly used engineering technical measures for drainage consolidation of soft soil foundation. In the current depth detection of plastic drainage boards, there are mainly the following two detection methods: [0003] 1. Scale detection, this detection method means that a certain scale is engraved on the plastic drainage plate, and the insertion depth is calculated according to the scale. The disadvantage of this method is that the manufacturer is required to mark a certain scale on the plastic drainage plate when...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the manufacturer is required to mark a certain scale on the plastic drainage plate when producing the plastic drainage plate, and the marked scale requires obvious handwriting, but in the actual use process on site, it is often subject to natural conditions such as rain. Conditions, but can not guarantee clear writing, bring trouble to the use

The disadvantage of this method is that after the measuring instrument has been used for a long time for detection, it will not have enough friction along the direction of the board width, and slipping between the belt and the wheel will occur during the insertion of the drainage board, which will affect the detection effect

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