Positioning control system of automatic static pile driver based on gps technology

Abstract

The present invention discloses a full-automatic static pile driver positioning control system based on the GPS technology. The full-automatic static pile driver positioning control system based on the GPS technology comprises a GPS positioning system, a pile driver control computer and a pile driver self-propelled mechanism. The GPS positioning system comprises a GPS base station and onboard GPS devices, the GPS base station is fixed at a known coordinate point near a pie driver, and the onboard GPS devices are fixed on the machine body of the pile driver. The pile driver control computer is connected to the onboard GPS devices, and is used for acquiring central coordinates of the current pile driver mechanism by calculation of position coordinates collected by the onboard GPS devices, comparing the central coordinates with predetermined pilling construction coordinates, and controlling the pile driver self-propelled mechanism according to the comparing result to enable the pile driver to move until the error between the central coordinates and the construction coordinates of the pile driver mechanism is smaller than the construction requirement. The accurate position of the pile driver is acquired through the carrier phase differential technique, and with high positioning accuracy, the pile driver can be accurately and automatically positioned and the horizontal posture of the pile driver can be automatically adjusted.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a full-automatic static pile driver positioning control system based on GPS technology. Background technique [0002] Prefabricated pile foundation engineering is a construction project in which prefabricated piles are driven into the designated position and depth by using a pile driver. The holding pressure hydraulic static pile driver is the key equipment for pile foundation construction. Its working process is: control the traveling mechanism of the pile driver, and accurately position the prefabricated pile to the predetermined position; Clamping friction, the hydraulic mechanism of pile pressing uses the reaction force generated by the pile machine's own weight to press the prefabricated pile into the soil. The positioning of the holding pressure hydraulic static pile driver widely used in China is in the manual operation mode. The horizontal attitude control of the ...

AI Technical Summary

Problems solved by technology

Pile foundation construction is greatly affected by terrain conditions and weather conditions, and the construction speed is relatively slow

Due to the accuracy error of mechanical equipment, the operation error of pile driver operators, and the measurement error of surveyors, etc., the positioning accuracy of concrete piles often fails to meet the specification requirements, and even major quality accidents such as missing piles and wrong piles occur. Adverse effects of foundation construction

[0003] In recent years, GPS positioning technology has been widely used in the field of machinery, but because the positioning error of civilian GPS is as high as several meters, GPS positioning is currently mostly used in fields that do not require high position accuracy. When GPS is used for the positioning of pile drivers, The positioning accuracy of GPS must be greatly improved, otherwise the pile positioning accuracy requirements of the pressed pile cannot be met

Images