Some topics on using ultrasonic method for concrete casting level measurement in bored pile foundation | Kai | Записки Горного института

Some topics on using ultrasonic method for concrete casting level measurement in bored pile foundation

Lan Kai, Yan Taining, Shao Chun

Аннотация


With the high-speed increase of Chinese economy, bored piles are widely used in infrastructure construction projects. But how to gain the exact surface of the casting concrete is a difficult problem in quality control for bored pile. In practice, the only way to avoid quality problems is to cast more volume of concrete, this makes a great waste and gives great pressure on environment for the discard concrete columns. So, develop an ultrasonic device to measure the concrete casting level is of vital importance. Based on analysis the negative impacts by casting too much concrete, the paper presents the design scheme for the device, introduces the main difficulties and summarizes the main up-to-date gains by our group.


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Литература


Shao Chun. Research on remote measuring the altitude of concrete’s surface in bored piles by using ultrasonic method [D]. PhD dissertation for China University of Geosciences. 2006.

Yan Taining, Г.А.Григашкин, Zhang Tao. Portable ultrasonic wave water depth measuring apparatus [R]. China University of Geosciences. 2003.

Zhang Hesheng, Song Mingyao. Research and development the instrument of ultrasound distance measurement in vehicle [J]. Instrumentation & Sensors, 2003(2), 26-28.


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