Blind ditch flushing system and flushing method

Abstract

The invention discloses a blind ditch flushing system and flushing method. The flushing system for a blind ditch comprises a communication assembly, a liquid supply device and an air supply device. The communication assembly comprises a first pipeline for water inflow and a second pipeline for water drainage, the first pipeline communicates with one end of the blind ditch, and the second pipeline communicates with the other end of the blind ditch; the liquid supply device communicates with the blind ditch through a first pipeline and is used for providing water for flushing the blind ditch; and the air supply device communicates with the liquid supply device so that air-dissolved water used for flushing the blind ditch can be generated in the liquid supply device. High-pressure air provided by the air supply device is introduced into the liquid supply device to form high-pressure air-dissolved water, the high-pressure air-dissolved water enters the blind ditch through a first guide pipe and impacts the blind ditch from inside to outside, a filter cake layer on the outer surface of the blind ditch is broken through shearing force of the air-dissolved water, a water seepage channel of the blind ditch is dredged, and the water permeability of the blind ditch is improved. The blind ditch flushing method can effectively solve the problem of blind ditch clogging, and the drainage efficiency and the service life of the blind ditch are remarkably improved.

Description

technical field [0001] The invention relates to the field of blind ditch cleaning, in particular to a blind ditch flushing system and a flushing method. Background technique [0002] The blind ditch can be regarded as a porous structure with many seepage channels distributed inside. When the groundwater level rises or the water pressure increases, groundwater can enter the blind ditch through the seepage channels and be discharged in a concentrated manner to reduce the groundwater level. The purpose is to reduce the buoyancy of groundwater on the foundation and improve the stability of the building foundation. With the increase of time, the filter cake layer on the surface of the blind ditch becomes thicker and thicker, the connectivity of the seepage channel in the blind ditch becomes lower and lower, the sediment at the bottom of the blind ditch becomes thicker, and the effective permeable area of ​​the blind ditch becomes smaller and smaller. The water permeability of th...

AI Technical Summary

Problems solved by technology

[0003] Since the existing cleaning equipment cannot clean the filter cake layer on the surface of the blind ditch and the blockage in the seepage channel of the blind ditch, the cleaning effect is poor, and the problem of blind ditch silting cannot be solved

Images