Simulation test device of sedimentation post-treatment of rain pipe in sea silt and method

Abstract

The invention discloses a simulation test device of sedimentation post-treatment of a rain pipe in sea silt and a method and mainly relates to the field of vacuum preloading technology. The simulation test device comprises a test box. A deflection and strain measuring hole, a hole pressure measuring hole and a vacuum degree measuring hole are arranged in the side wall of the test box. A vacuum meter is installed in the vacuum degree measuring hole. A rain pipe and a micro pore water pressure gauge are arranged in the test box. A strain sheet and a deflection measuring sensor are arranged on the inner wall of the rain pipe. A plastic water discharging plate is arranged in the test box. A water discharging plate joint is arranged on the plastic water discharging plate. A water discharging pipe is arranged on the water discharging plate joint. The beneficial effects are that strain and deflection data of the rain pipe in the sedimentation post-treatment processes in sea silt can be effectively measured; vacuum degree and hole pressure can be measured; and the method can be used for researching influence law on deformation of the rain pipe imposed by change of the vacuum degree and the strain of the rain pipe in the sedimentation post-treatment processes in sea silt.

Description

technical field [0001] The invention relates to the technical field of vacuum preloading, in particular to a simulation test device and method for post-settlement treatment of rainwater pipes in sea silt. Background technique [0002] With the rapid development of my country's economy, the infrastructure of coastal cities has gradually improved, and urban underground pipelines have become increasingly complex. Municipal rainwater pipes in some coastal cities are built in sea silt. Due to the large porosity and high compressibility of sea silt, significant post-construction settlement will occur. In addition, sea silt will also undergo uneven settlement under the action of external loads. Therefore, it will cause the rainwater pipes buried in the sea silt to float or sink. When the floating range of the rainwater pipeline is small, the original design slope will be changed; when the floating range is large, not only the slope of the pipeline will be changed, but also the pip...

AI Technical Summary

Problems solved by technology

At present, the research and understanding of the deformation mechanism and law of the rainwater pipe in the sea silt during the vacuum preloading process is still shallow.

In addition, the influence of changes in vacuum degree and pore pressure in sea silt on the deformation of rainwater pipes during the vacuum preloading process is also unclear.

Images