Detection method for sinking position of flexible mattress

Abstract

The invention discloses a detection method for a sinking position of a flexible mattress. The detection method is characterized by comprising the steps of adopting the GPS (Global Position System) positioning systems of a base-station and three mobile radio stations; installing the three mobile radio stations on a measuring ship and moving above a detection point; installing an ultrasonic transmission sensor at the edge of the mattress where the detection point is set, and installing the ultrasonic receiving sensors all around the three mobile radio stations; receiving and measuring the propagation time that ultrasonic waves are arrived by the three ultrasonic receiving sensors, and calculating distances; meanwhile, determining a three-dimensional coordinate of the three ultrasonic receiving sensors by the information of the mobile radio stations, and obtaining the space position of the detection point through the interpretation of the space coordinate. According to the detection method provided by the invention, the sinking position of the flexible mattress can be quickly and accurately obtained to provide a basis for the subsequent sinking, and the sinking effect of the flexible mattress can be ensured; meanwhile, the detection method has the advantages of being simple to operate, low in cost, good in feasibility and high in precision.

Description

technical field [0001] The invention relates to a water conservancy construction measurement technology, in particular to a method for detecting the position of a soft discharge and sink. Background technique [0002] The most common phenomena in the evolution of riverbeds are the collapse of river embankments, scouring and silting of beach channels, and channel displacement, which have an important impact on water conservancy project protection and channel regulation. In waterway improvement projects, laying soft rows on bank slopes and beaches to reduce shore and beach erosion, and stabilizing riverbeds and waterways are important measures for project improvement. [0003] According to the capacity of construction equipment, the width of the soft row is generally 20m, and the length depends on the scope of protection. During the laying process, it is generally hoped that the row body will be laid flat on the river bed, and the two soft body rows will be overlapped by abou...

AI Technical Summary

Problems solved by technology

Due to the influence of factors such as turbid water flow, complex terrain, and scanning accuracy, it is difficult to detect the exact position of the soft platoon by this method. In addition, the cost of side-scan sonar is high and the operation is also very complicated.

The second is to directly dive into the riverbed by divers for detection. This method is not easy to locate the measuring point, and has certain risks and high cost.

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