A device and method for monitoring and evaluating the coupling performance of concrete pile foundation and soil

Abstract

The invention discloses a device and method for monitoring and assessing the coupling performance of a concrete pile foundation and a soil body. The device for monitoring and assessing the coupling performance of the concrete pile foundation and the soil body comprises intelligent piezoelectric ceramic skeletal materials, an intelligent piezoelectric ceramic skeletal material array, a data acquisition system, a vertical load system and a horizontal vibration load system. The method comprises the steps that step 1, the intelligent piezoelectric ceramic skeletal materials are embedded in the specific positions on a cast-in-place pile reinforcement cage of the pile foundation in advance before pile foundation pouring is conducted and are connected with the data acquisition system through wires, so that the intelligent piezoelectric ceramic skeletal material array is formed; step 2, the cast-in-place pile reinforcement cage is poured by concrete so that the concrete pile foundation can be formed; step 3, the change of signals in the concrete condensation process is acquired and observed through the data acquisition system, the real-time health condition of the pile foundation is judged by analyzing signal properties, and whether pile breakage occurs or not is judged; step 4, long-time real-time monitoring is conducted on the pile foundation and the coupling state of the concrete pile foundation and the soil body is judged. Safety assessment and long-time real-time monitoring of a concrete pile are achieved.

Description

technical field [0001] The invention belongs to the technical field of civil engineering monitoring and evaluation, and relates to a real-time safety monitoring device and method for evaluating the integrity and bearing capacity of concrete piles, in particular to a long-term real-time monitoring and evaluation device for the coupling performance of concrete pile foundations and soil and methods. Background technique [0002] At present, there have been some basic studies and literature descriptions on the use of piezoelectric ceramics to make smart aggregates for the detection of concrete piles. [0003] For the detection of the integrity of the pile foundation, the wave effect formed by the piezoelectric ceramic array is used to observe the running state of the wave in the pile body to judge the uniformity change state of the concrete within the pile length range. The existing background technology is to arrange a piezoelectric ceramic intelligent aggregate array in the b...

AI Technical Summary

Problems solved by technology

The current technology can only fuzzy judge the damage of concrete pile foundations in a specific environment under specific conditions, which has great limitations and cannot accurately determine the damage location and damage degree. In addition, the influence of moisture intrusion on the signal is not well established in the existing literature. rare description

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