Geomembrane anchoring and sealing structure

Abstract

The invention discloses a geomembrane anchoring and sealing structure. The geomembrane anchoring and sealing structure comprises a lower supporting layer and a geomembrane, and the lower supporting layer and the geomembrane are in anchoring connection through a sealing structure; the sealing structure sequentially comprises a fixed sealing sleeve, a bonding layer, a cushion layer, a nut and a boltfrom bottom to top; the fixed sealing sleeve is made of a waterproof material; the fixed sealing sleeve is integrally buried in the lower supporting layer, and a cavity with an opening in the top anda closed bottom end is formed in the fixed sealing sleeve; and the bolt extends into the cavity of the fixed sealing sleeve and is fixed together with the fixed sealing sleeve. The anti-seepage performance is better, and no systematic anti-seepage defect exists.

Description

technical field [0001] The invention relates to a geomembrane anchoring and sealing structure, which belongs to the technical field of water conservancy, hydropower, municipal engineering, etc. involving anti-seepage treatment. Background technique [0002] Geomembrane is a kind of 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 geomembrane anchoring structure in the prior art generally includes a geomembrane, a lower support layer, and bolts. The bolts also destroy the integrity of the geomembrane while playing a reinforcing role, so the part where the bolts and the geomembrane are in contact becomes a weak link of anti-seepage. In order to prevent leakage at this place, asphalt or sealant is usually painted on this part to carry out bonding and waterproof...

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

Images