An automatic discrimination system and working method for pile foundation soil types of perforated piles

Abstract

The invention discloses an automatic distinguishing system for an impact-cone concrete pile foundation soil layer kinds and a work method of the automatic distinguishing system. The system comprises a frequency collector, a wireless digital sensor and a computer. The frequency collector transmits data to the computer through the wireless digital sensor. The frequency collector and the wireless digital sensor are arranged in an impact-cone concrete pile machine heavy hammer. The automatic distinguishing system can accurately obtain the actual soil layer kind according to comparison between the field punching frequency and a standard soil layer database in the computer, the problem that when constructors at the current stage subjectively assess the soil layer kind, the kind of the soil layer cannot be accurately obtained is solved; and meanwhile, the construction design can be checked or the initial design can be changed, the project quality is improved, and the project cost is reduced. By means of the automatic distinguishing system, the thickness of the operation soil layer can be accurately measured, the construction error caused by the uneven change of the construction field soil layer and the insufficient bearing layer thickness and bearing layer thickness measured during lofting are avoided, and construction safety is guaranteed.

Description

technical field [0001] The invention relates to a soil layer category discrimination technology in civil engineering construction, in particular to an automatic soil layer category discrimination system for perforated cast-in-place pile foundations. Background technique [0002] At present, in civil engineering construction projects, the following methods are usually adopted for the identification of soil layer types on the construction site: [0003] 1. Stake out and measure by the geological survey team before construction. Because the thickness of different types of soil layers is variable, and the stakeout density cannot achieve one pile and one hole, there is a certain error between the soil layer type under each pile foundation and the soil layer type measured at the stakeout measurement point. [0004] 2. Determined by the experience of the construction personnel on site. Such as observing the punching speed, listening to the punching sound and other empirical judgm...

AI Technical Summary

Problems solved by technology

This method can only roughly judge the soil layer, the probability of being disturbed is high, and the thickness of the soil layer cannot be judged, so it is impossible to calculate the bearing layer

[0006] Although the above methods can also obtain the category of the soil layer, they all have large errors and are affected by human factors, and it is not easy to obtain the thickness of the soil layer

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