A device for assisting slope drainage by using hollow floating body

Abstract

The invention relates to an apparatus for using a hollow floater to assist in slope drainage and solves the problem that in a dry season with less rainfall, underground water level drops, a slope has no water to be discharged via siphoning, a siphoning system may stop operating, air dissolved in air may be separated out gradually in bubble form, the air accumulates constantly in a siphon, the vacuum degree of the siphon decreases, and it is hard to restart siphoning and even siphoning disappears. The apparatus comprises a hollow floater, anchor cables, an air chamber, a siphon, an exhaust pipe, an air supplement pipe, and a one-way valve; the hollow floater is arranged on the water level in the front of the slope, the bottom of the hollow floater is connected to a foundation through the anchor cables, the air chamber is formed in the hollow floater, one end of the siphon is extended below the underground water level of the slope, the other end of the siphon is passed through the air chamber below sea water level, one end of the exhaust pipe is extended below the underground water level at the rear edge of the slope, the other end of the exhaust pipe is connected to the air chamber, and the air supplement pipe is arranged at the upper end of the air chamber.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering, in particular to a device for draining water from coasts and bank slopes. Background technique [0002] my country has a vast territory, complex geological topography, and frequent geological disasters, among which landslide disasters pose a huge threat to human production and life. The occurrence of most landslide hazards is related to the change of groundwater level. The rise of the groundwater level leads to an increase in the bulk density of the landslide, a decrease in the effective stress of the sliding surface, and a decrease in the shear strength, which in turn leads to the instability of the landslide. For reservoir bank slopes, when the water level in front of the slope drops rapidly, the groundwater inside the slope seeps out of the slope, generating seepage force, increasing the sliding force, and causing the landslide to become unstable. Therefore, draining the groundwater i...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defect that the siphon drainage method in the prior art is used to drain the coast and reservoir bank slope, after the siphon effect is suspended due to the drop of the groundwater level, the vacuum degree in the siphon tube is reduced, and the siphon effect is difficult to recover by itself

Images