Testing device for placing soil pressure cell and use method thereof

Abstract

The invention belongs to the technical field of model tests, and relates to a test device for placing an earth pressure cell and a use method thereof. The test device for placing the soil pressure cell is composed of three parts: a support containing the soil pressure cell is used for fixing the soil pressure cell; according to the rope balance structure, a main bearing beam structure is connected with a balance base and then connected with a secondary beam structure through screws, the distance between two ropes is determined by adjusting the distance and the included angle between a secondary beam and the main bearing beam structure, the rope balance structure is suitable for soil pressure cells of different sizes, and pulleys and other devices are installed on the two sides of the secondary beam; according to the structure, whether the rope is horizontal or not can be adjusted through the balance base, the direction of the rope can be changed, and the soil pressure box is placed in the desired placing direction; a rope with the same length is rotated and stretched out and drawn back through a winding drum crank, so that the two sides of the soil pressure box are kept horizontal in the falling process. The device is reasonable in structural design and easy to operate, the earth pressure cell can be smoothly placed in a field test, and the placing direction of the earth pressure cell is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of model tests, and in particular relates to a test device for placing an earth pressure cell and a use method thereof. Background technique [0002] With the development of the economy, the development of infrastructure is getting faster and faster. During the construction of foundation pits, tunnels, high-rise buildings and other projects, it is necessary to understand the force of the enclosure structure, often by monitoring the earth pressure near the construction site , through the size and distribution of earth pressure to analyze whether the current construction status is safe, so as to reduce the incidence of accidents. At present, the sensors for monitoring earth pressure are generally one-dimensional vibrating wire earth pressure cells, because the cost of three-dimensional earth pressure cells is too high, but there is always a big problem in the embedding of one-dimensional vibrating wire earth p...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to solve the problem that when the earth pressure cell is placed tiltedly in the field test to monitor the earth pressure, the error of the monitoring data is large, and a method that can effectively prevent the earth pressure cell from being tilted due to the rotation of the earth pressure cell during the placement process is proposed. The problem is to ensure that the sensor of the earth pressure cell is parallel to the monitoring surface and reduce the monitoring error.

Images