A method of automatic measurement and construction of piles formed by long auger drilling rigs

Abstract

The invention discloses an automatic pile-forming construction method of a long auger drilling rig, comprising: 1. leveling the construction site and determining the pile position; 2. installing a trigger rod; 4. Estimate the installation elevation of the pump stop limit module on the boom; 5. Install the control module at the rig end and the control module at the pump end; 6. Install the movement direction recognition mechanism for the long auger drill rod; 7. Drill holes; 8. Pull out the rod 9. Complete the pouring of the next CFG pile with the same pile length and pile bottom design elevation; 10. Update the elevation parameters of the pile and complete the pouring of all CFG piles on the construction work surface. The invention automatically measures the design elevation of the pile bottom through the cooperation of the trigger rod and the drill pipe limit module, prompts the operator to stop drilling, avoids over-drilling or under-drilling, and ensures the quality of the pile. Filling design elevation, prompting to stop pouring concrete, avoiding insufficient or over-length virtual pile heads, and high degree of automation.

Description

technical field [0001] The invention belongs to the technical field of pile-forming automatic measurement of long auger drilling rigs, and in particular relates to a construction method for automatic pile-forming measurement of long auger drilling rigs. Background technique [0002] The main construction technology of CFG piles (cement fly ash gravel piles) is long auger drilling and pump pressure pouring into piles in the pipe. It has strong penetrating power, no mud pollution, no vibration, low noise, and is suitable for a wide range of geological conditions. Features such as high construction efficiency. Due to its advantages in technology, economy, and construction, CFG composite foundation technology is widely used in most parts of the country. In the construction of CFG piles, it is necessary to continuously measure and control the drilling depth of CFG piles and the height of the concrete stop pouring, otherwise the pile length and virtual pile head will be insuffici...

AI Technical Summary

Problems solved by technology

The former affects the quality of the pile, while the latter causes material waste

When measuring and controlling the drilling depth of CFG piles and the height of concrete filling stop, due to the influence of factors such as pile mud accumulation, pile driver displacement, and work type coordination and connection, it is difficult to achieve precise control of the above points, and the construction coordination is difficult and labor-intensive. low efficiency

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