Vacuum enhancing method for solidified dredging mud

Abstract

The invention discloses a vacuum enhancing method for solidified dredging mud. The method comprises the following steps that 1, a drain channel is excavated in the surface of a solidified dredging mud body, and a water absorbing material is laid in the drain channel; 2, films high in strength are laid on the solidified dredging mud body and the drain channel, and the peripheries of the films and the periphery of the mud body are sealed; 3, a pipeline is laid between the films and the solidified dredging mud body and connected with a pump machine; 4, the pump machine is started for carrying out negative pressure vacuumizing to make the mud body be dehydrated; 5, after the stipulated amount of the water is dehydrated, the films are rolled and moved to the next operation face of the solidified dredging mud body, and the above steps are repeated. The vacuum enhancing method for the solidified dredging mud is adopted for processing the solidified dredging mud, and therefore all mechanical properties of the solidified dredging mud are improved.

Description

technical field [0001] The invention relates to a treatment method for vacuum dehydration to improve the mechanical properties of solidified dredging mud, in particular to a vacuum enhancement method for the mechanical properties of solidified dredged mud. Background technique [0002] Due to the physical and mechanical properties of dredged mud with high water content, high void ratio, high compressibility, and low bearing capacity, dredged mud in rivers and lakes with serious water pollution is also highly polluting, so the rational use of dredged mud is still an important issue. To explore difficult problems, the currently commonly used dredging mud treatment methods only include ocean dumping treatment, drainage treatment, solidification treatment, heating treatment, vacuum electroosmosis and dynamic compaction combined treatment. Dredged mud has engineering characteristics such as high clay content, high moisture content, high compressibility, low strength, poor permeab...

AI Technical Summary

Problems solved by technology

However, the water content of the cured dredging mud is still very high. How to speed up the drainage is a very important issue in today's increasingly shorter construction period.