Wireless real-time measurement device for jacking distance and jacking force of jacks in bridge jacking process

Abstract

The invention relates to a wireless real-time measurement device for the jacking distance and jacking force of jacks in a bridge jacking process. The wireless real-time measurement device comprises displacement sensors, pressure sensors, a wireless signal transmission module, a wireless router, a data acquisition device and a handheld terminal. Each jack is provided with one displacement sensor and one pressure sensor, wherein the displacement sensor and the pressure sensor are connected with the wireless signal transmission module through the data acquisition device, the wireless signal transmission module sends digital signals of the displacement sensor and digital signals of the pressure sensor collected by the data acquisition device into a wireless network, the wireless network transmits the digital signals of the displacement sensor and the digital signals of the pressure sensor to the handheld terminal, and the digital signals of the displacement sensor and the digital signals of the pressure sensor are displayed in real time through the handheld terminal. The wireless real-time measurement device is high in measurement accuracy, stable, reliable, portable, easy to operate, and capable of being widely applied to bridge jacking construction.

Description

technical field [0001] The invention relates to a wireless real-time measuring device for jacking distance and jacking force in bridge jacking construction. Background technique [0002] At present, the measurement method of the jacking distance of the jack in the traditional domestic bridge jacking construction is manual measurement. This measurement method is backward, the measurement accuracy is not high, the construction efficiency is low, and the jacking force cannot be measured. The jacking force of the four supporting jacks on the bridge Whether it is balanced or not cannot be known. At present, the automatic measurement methods commonly used in China are mostly matched with the hydraulic synchronous jacking system. These methods are often not flexible enough, have many equipments, are not portable, and most of them are wired connection measurement methods. The equipment connection is cumbersome, which affects the construction. For example: Chinese patent 20111045324...

AI Technical Summary

Problems solved by technology

[0004] 1. The system is embedded in the PLC hydraulic synchronous jacking system, which needs corresponding PLC equipment as support, and must be supplemented by facilities such as control room and central control cabinet, and the system has low independence;

[0005] 2. The system has a lot of equipment, it is inconvenient to carry out jacking construction operations on the bridge piers, and the construction flexibility is low

[0006] From the above discussion, it can be seen that the existing wireless transmission system of bridge jacking detection data has great limitations in practical use, and cannot be used as a universally applicable measurement method

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