Visual simulation experiment device of piled embankment soil arch effect

Abstract

A visual simulation experiment device of a piled embankment soil arch effect comprises a load module and a digital photoelastic instrument. The load module comprises a control platform, a proving ring, a transparent sealed box, a portal frame and a lifting platform. The portal frame is fixed to the control platform. The lifting platform is fixed to the control platform and located inside the portal frame. The box is placed on the lifting platform. Vertical rigid piles are fixed to the inner bottom of the box body. A press plate is arranged on the upper side of the rigid piles in the box body.The space between the bottom and the press plate in the box body is filled with a photoelastic material. A push rod is arranged on the top face of the press plate. The push rod is fixedly connected with the lower end of the proving ring. The upper end of the proving ring is fixed to the portal frame. One side of the box body is sequentially provided with a first quarter-wave plate, a first polarizer and a camera shooting module from inside to outside. The other side of the box body is sequentially provided with a second quarter-wave plate, a second polarizer and a light source from inside to outside. A computer is electrically connected with the camera shooting module through a data cable. The visual simulation experiment device can conduct real-time simulation and monitoring on the piledembankment soil arch effect.

Description

technical field [0001] The invention relates to a simulation experiment device for visualizing the soil arch effect of a pile-supported embankment. Background technique [0002] In order to improve the bearing capacity of the embankment, the pile-supported embankment is often used in engineering as a foundation treatment form. This treatment form can transfer the load on the pavement to the lower soil layer with better bearing capacity, and the soil arch effect plays an important role in the process of pile-supported embankment. The soil arch effect can transfer the stress on the foundation soil to the pile, thereby reducing the load on the foundation soil and improving the bearing capacity. At present, in order to explore the mechanism of the soil arch effect more deeply, improve the safety of the soil arch effect of the pile-supported embankment and the bearing capacity of the embankment, many technicians have realized the effect of the soil arch effect on the bearing cap...

AI Technical Summary

Problems solved by technology

At present, in order to explore the mechanism of the soil arch effect more deeply, improve the safety of the soil arch effect of the pile-supported embankment and the bearing capacity of the embankment, many technicians have realized the effect of the soil arch effect on the bearing capacity through field tests and simulations. Some technicians use image processing technology to study the soil arch effect through stress boxes and successfully obtain the displacement field, but there are still many difficulties in solving the stress field, and it cannot be ruled out when using stress boxes. The effect of its own surrounding stress

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