Post-disaster damage detection method and device for farm house shallow pile foundation

Abstract

The invention relates to the technical field of building post-calamity damage detection, in particular to a post-calamity damage detection method and device for a farm house shallow pile foundation. The invention provides a post-disaster damage detection method for a reinforced concrete shallow pile foundation through a principle that after the reinforced concrete foundation pile is damaged, a reinforcing steel bar can be exposed in soil seepage to cause conductivity change, and provides corresponding equipment which is portable and easy to operate. According to the method, the damage occurrence condition, severity and occurrence depth of the affected building foundation pile can be accurately measured, compared with the prior art, the detection time is greatly shortened, the precision in the aspect of judging the damage severity is high, and accurate guidance can be provided for follow-up processing planning.

Description

Technical field: [0001] The invention relates to the technical field of post-disaster damage detection of buildings, in particular to a post-disaster damage detection method and device for shallow pile foundations of farmhouses. Background technique: [0002] After earthquakes, landslides, mudslides, ground subsidence, blasting operations and other events, it is necessary to conduct damage detection on the buildings in the involved area to identify whether the relevant buildings have been damaged and the severity of the damage, and then plan related reuse, repair or dangerous buildings Dismantling process. When inspecting the parts above the building ground, due to its exposed structure, it is easy to observe the damage such as cracks and fractures, but it is difficult to directly observe the parts below the building ground, such as the foundation, due to the shielding of the soil, so vibration echo equipment is needed conduct. [0003] When performing damage detection on ...

AI Technical Summary

Problems solved by technology

First of all, the time unit of its parameters is measured in months, and the detection work takes a long time. In the case of scattered buildings affected by the disaster, the relevant work efficiency is extremely low, and a large amount of long-term manpower is required. The detection results are not obtained in time and the cost is huge.

Moreover, this method does not directly observe the integrity of the foundation piles. Considering that once the reinforced concrete foundation piles are damaged, the steel bars are easily corroded after being contacted by soil seepage, and the concrete structure will be further broken after a certain period of time. The degree of treatment damage will expand with time, and only measuring the overall stability of the foundation cannot judge the expansion trend of the damage. The detection conclusions obtained based on this method are used to guide subsequent treatment planning, and there are large errors

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