A concrete ultra-high pumping simulation verification device and method

Abstract

The invention provides a concrete super-high pumping simulation verification device and method, which belong to the technical field of concrete super-high pumping and are used for verifying the accuracy of a concrete super-high pumping simulation model. It includes a test pipe that is connected to the end of the concrete pump pipe through a flange, and a rotating impeller system that is vertically installed on the inner wall of the vertical pipe. The measurement control system measures the rotating speed of the blade through the measurement control system, and calculates the concrete plastic viscosity and yield stress according to the set fitting formula. Therefore, the device does not need to install pressure sensors and other equipment on the pump pipe, and will not damage the safety of the pump pipe, and can simply and conveniently measure the rheological parameters of the concrete during the concrete pumping process.

Description

technical field [0001] The invention relates to the technical field of super-high concrete pumping, in particular to a simulation verification device and method for super-high concrete pumping. Background technique [0002] Some people in China have already started research on concrete superelevation pumping through numerical simulation method. Based on the rheology of concrete, this method studies key parameters such as the flow state and pressure loss of concrete during the pumping process through numerical methods such as computational fluid dynamics or discrete elements, which is conducive to the control of super-high concrete pumping construction from traditional experience. The method has changed to a scientific and quantitative control method, thus laying the foundation for realizing the digital construction of concrete super-high pumping. However, there is no good method for how to verify the simulation results of concrete superelevation pumping. [0003] Most of t...

AI Technical Summary

Problems solved by technology

The laboratory verification method is mainly aimed at the flow behavior of concrete under gravity, which is quite different from the state of concrete pumping (the flow of concrete under pressure), and its scale and scale cannot be compared with pumping.

Although the ground coil method adopts the pumping method, it does not consider the influence of gravity. Whether the result of horizontal pumping can reflect the state of vertical pumping is still open to question.

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