Porous sealing device for connecting vertical flexible barrier system

A system connection, porous sealing technology, applied in protection devices, buildings, infrastructure engineering, etc., can solve the problems of uneven change of membrane force, poor performance at seams, tearing at seams, etc., achieve long service life and resist foundation settlement. , the effect of strong anti-stable chemical properties

Active Publication Date: 2014-01-15
BEIJING GEOENVIRON ENG & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

Conventional hot-melt welding is used in the prior art, and the joints have poor performance against the uneven stress of the membrane caused by geological movement and ground subsidence, which may easily lead to tearing at the joints

Method used

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  • Porous sealing device for connecting vertical flexible barrier system

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Embodiment Construction

[0018] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] A porous sealing device for the connection of a vertical flexible barrier system, including an expansion water-stop pad 7 and a connection lock 1 arranged on both sides of an HDPE geomembrane 2 and keeping a seal between the HDPE geomembrane 2 , the HDPE geomembrane The two sides of the geomembrane 2 are respectively provided with a connecting lock 1, and the connecting lock 1 is hot-melt welded on both sides of the HDPE geomembrane 2, and the left and right sides of each piece of the HDPE geomembrane 2 are The connection locks 1 are located on two different faces...

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Abstract

The invention discloses a porous sealing device for connecting a vertical flexible barrier system. The porous sealing device comprises an expansion water stopping gasket and connecting latch fittings which are arranged on both sides of an HDPE (High Density Polyethylene) geomembrane and are sealed with the HDPE geomembrane, wherein when each connecting latch fitting on the HDPE geomembrane is tightly buckled with the other connecting latch fitting on the HDPE geomembrane for forming a sealing device, an expansion water stopping gasket cavity for accommodating the expansion water stopping gasket is formed between the two tightly-buckled connecting latch fittings; and the expansion water stopping gasket is filled into the expansion water stopping gasket cavity. The porous sealing device has extremely high anti-stability chemical performance, is resistant to corrosion of pollutants, and has long service life; and membrane surface wall bodies on both sides have extremely high breaking elongation performance, resistance to foundation precipitation, slight earth crust displacement and the like is realized, and durable sealing of a joint on the vertical flexible barrier system can be ensured by adopting seven-grade sealing.

Description

technical field [0001] The invention relates to the technical fields of environmental treatment and water conservancy construction of polluted sites such as petrochemical, mining and smelting, and solid waste disposal, and in particular relates to a porous sealing device used for connecting vertical flexible barrier systems. Background technique [0002] With the rapid development of economy, the acceleration of industrialization and urbanization, people's requirements for living environment are getting higher and higher, but the amount of urban solid waste is also increasing sharply. However, due to the long-term stockpiling of solid waste and some simple garbage dumps and irregular landfills, pollution leakage has occurred. [0003] Vertical barrier systems are the fastest and safest way to contain hazardous subsurface fluid flows, providing immediate protection and long-term containment assurance. However, the connection between two pieces of HDPE geomembrane is very imp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D31/00
Inventor 刘勇陈望明刘力奇曾越祥陈顺刘泽军
Owner BEIJING GEOENVIRON ENG & TECH
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