A geomembrane anchoring and sealing structure

Abstract

The invention discloses a geomembrane anchoring and sealing structure. The geomembrane anchoring and sealing structure includes a lower support layer and a geomembrane, and the lower support layer and the geomembrane are anchored and connected through a sealing structure; the sealing structure sequentially includes a fixed sealing sleeve, an adhesive knot layer, cushion layer, nuts, bolts; the fixed sealing sleeve is made of impermeable material; the fixed sealing sleeve is buried in the lower supporting layer as a whole, and the fixed sealing sleeve forms an open top and a closed bottom end cavity; the bolts extend into the cavity of the fixed sealing sleeve and are fixed together with the fixed sealing sleeve. The anti-seepage performance of the invention is better, and there is no systematic anti-seepage defect.

Description

technical field [0001] The invention relates to a geomembrane anchoring and sealing structure, belonging to the engineering technical fields of water conservancy, hydropower, municipal administration and the like involving anti-seepage treatment. Background technique [0002] Geomembrane is a high molecular polymer material. Because of its good flexibility, strong ductility and excellent anti-seepage performance, it is also called "impermeable membrane". In the actual project of seepage treatment, a good anti-seepage effect has been achieved. [0003] The prior art geomembrane anchoring structure generally includes geomembrane, lower support layer, and bolts. While the bolts play a reinforcing role, they also destroy the integrity of the geomembrane, and thus become a weak link in the seepage prevention at the contact position between the bolt and the geomembrane. In order to prevent leakage in this area, asphalt or sealant is usually applied to this area for bonding and w...

AI Technical Summary

Problems solved by technology

[0007] 2) The anchor bar 3 is perforated on the SBS waterproof membrane, and only the expanded rubber water-stop strip is used to stop the water at the perforation. Although the expanded rubber water-stop strip can play a certain role in water-stopping, it cannot be sealed to completely block the water. In addition, the expansion water-stop strips age quickly and are prone to failure

[0008] 3) The water-stop stabilization ring is screwed on the anchor bar, and only the expansion rubber water-stop strip is used to stop the water at the contact point. Under the action of high-pressure water head, there is the same problem as item 2);

[0009] To sum up, the anchor bars in CN109706926 A run through the first anchor section, the SBS waterproof membrane, and the second anchor section. Neither the anchor body nor the expansion waterstop can form an effective overall sealing and waterstop effect. Under the action of rainwater or low water pressure , may have a certain effect, but under the action of high-pressure water, the leakage problem will be very prominent, and the sealing and water-stop effect cannot be formed

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