A water-stopping structure with grooves at the top of an anti-seepage wall

Abstract

The invention belongs to the technical field of water resources and hydropower engineering construction, and particularly provides a top groove water-blocking structure of an impervious wall. The top groove water-blocking structure comprises a groove, wherein the groove is formed in the bottom surface of a building at the top part of the impervious wall; an impervious material with plasticity is embedded between the top part of the impervious wall and the bottom surface of the building in the groove; the vertical width of the groove adapts to the settlement difference between the building and the impervious wall; the widths of two sides of the groove adapt to the horizontal displacement between the building and the impervious wall; 1-2 copper strips are arranged at the top of the impervious wall to block water; a plurality of outflow boxes are embedded into the bottom surface of the building in the groove and are communicated with the groove; and exhaust holes which are communicated with an expansion joint in the bottom surface of the building are formed in the outflow boxes. The water-blocking structure form for connecting the top part of the impervious wall and the upper building relatively reliably is provided, so that the water-blocking failure risk caused by dry shrinkage of packing in the groove is avoided; and an effective space is provided after the packing deforms, so that the damage to building structures of a lock chamber or a retaining wall and the like is avoided.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and hydropower engineering construction, and relates to a water-stopping structure with grooves at the top of an anti-seepage wall, which is suitable for the situation where the anti-seepage wall is arranged at the bottom of buildings such as lock chambers or retaining walls. Background technique [0002] Vertical anti-seepage wall is a relatively reliable basic anti-seepage measure commonly used in water conservancy and hydropower engineering buildings. In actual engineering, the anti-seepage wall is arranged at the bottom of the lock chamber or retaining wall to form a complete anti-seepage system. The deformation of the superstructure is inconsistent, resulting in support (vertical direction) or push-pull (water flow direction) to the superstructure, which may cause abnormal displacement of the superstructure, or damage to the water-stop structure at the connection. Therefore, for gate...

AI Technical Summary

Problems solved by technology

[0003] Figure 4 In the existing water-stop structure, asphalt is embedded in the groove at the bottom of the building and the top of the cut-off wall. On the one hand, there may be a risk of water-stop failure when the asphalt dries and shrinks. In addition, due to the plastic compression of the asphalt under the action of the sluice chamber, When the building is long along the length of the wall, there is no space for asphalt compression. Under long-term action, asphalt may be extruded along both sides or unknown parts, resulting in damage to other unknown structures

Images