Reinforced geomembrane and concrete connecting structure

Abstract

The utility model discloses a reinforced geomembrane and concrete connecting structure which comprises a first-stage concrete body and composite geotechnical cloth, a protruding concrete block is arranged at the bottom of the first-stage concrete body, the upper surface of the concrete block is lower than the soil surface, one part of the composite geotechnical cloth is laid on the upper surface of the concrete block, and the other part of the composite geotechnical cloth is laid on the lower surface of the concrete block. The composite geotechnical cloth is connected with the concrete blocks through fasteners, a GCL bentonite pad is laid on the upper surface of the composite geotechnical cloth, and a cement soil cushion layer is laid on the lower surface of the composite geotechnical cloth. And a second-stage concrete body is poured outside the bolt, meanwhile, a GCL bentonite pad is laid outside the second-stage concrete body and the composite geotechnical cloth, the anchoring position is reinforced, water and the expansion bolt are isolated, corrosion damage is prevented, and the durability of the anchoring structure is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy project construction, in particular to a connection structure of a reinforced geomembrane and concrete. Background Art

[0002] Geomembrane is a commonly used anti-seepage material in water conservancy and municipal engineering. It is generally laid on the bottom and slope of pools or lakes to prevent water leakage. The geomembrane needs to be fixed on the top of the geomembrane or at the part connected to the building to ensure the sealing of the anti-seepage system and the firmness of the geomembrane.

[0003] The defects of existing anchoring technology are as follows: (1) water leakage is prone to occur at the anchoring position; (2) nuts and expansion bolts are easily corroded and damaged when immersed in water for a long time, which affects the durability of the anchoring structure. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a connection structure of a reinforced geomembrane and concrete, including a phase concrete body and a composite geotextile, a protruding concrete block is arranged at the bottom of the phase concrete body, the upper surface of the concrete block is lower than the soil surface, a part of the composite geotextile is laid on the upper surface of the concrete block, the composite geotextile is connected to the concrete block by fasteners, a GCL bentonite pad is laid on the upper surface of the composite geotextile, and a cement soil pad is laid on the lower surface of the composite geotextile.

[0005] Furthermore, the fasteners include expansion bolts and nuts, a steel plate is arranged above the composite geotextile laid on the concrete block, nuts are arranged above the steel plate, and the expansion bolts penetrate the steel plate and the composite geotextile and are inserted into the concrete block.

[0006] Furthermore, the steel backing plate is connected to the upper surface of the composite geotextile through KS hot melt adhesive, and the lower surface of the composite geotextile is connected to the upper surface of the concrete body through KS hot melt adhesive.

[0007] Furthermore, the connection structure between the reinforced geomembrane and concrete also includes a second-phase concrete body cast in situ on the concrete block, so that the second-phase concrete body covers the fasteners and the composite geotextile.

[0008] Furthermore, GCL bentonite pads are laid on the upper surfaces of the second-phase concrete body and the composite geotextile, and the GCL bentonite pads are bonded to the second-phase concrete body through bentonite paste.

[0009] The beneficial effects of the utility model are as follows:

[0010] The utility model relates to a connection structure of a reinforced geomembrane and concrete, in which a second-phase concrete body is poured outside the bolts, and a GCL bentonite pad is laid outside the second-phase concrete body and the composite geotextile, so as to reinforce the anchoring position, isolate water and expansion bolts, prevent rust damage, and enhance the durability of the anchoring structure; it has a double-layer anti-seepage effect, and the reliability of the horizontal connection is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the connection structure between reinforced geomembrane and concrete.

[0012] Figure numerals: 1. Phase I concrete body, 2. Concrete block, 3. Composite geotextile, 4. GCL bentonite pad, 5. Cement soil pad, 6. Steel pad, 7. Expansion bolt, 8. Nut, 9. Phase II concrete body. DETAILED DESCRIPTION

[0013] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0014] The utility model proposes a connection structure of a reinforced geomembrane and concrete, comprising a phase concrete body and a composite geotextile, a protruding concrete block is arranged at the bottom of the phase concrete body, the upper surface of the concrete block is lower than the soil surface, a part of the composite geotextile is laid on the upper surface of the concrete block, the composite geotextile is connected to the concrete block through a fastener, a cement soil cushion layer is laid on the lower surface other than the anchoring part of the composite geotextile, a GCL bentonite cushion is laid on the upper surface of the composite geotextile, the GCL bentonite cushion is laid along the edge of the composite geotextile for a circle, the laying width is 5m, and it has a double-layer anti-seepage effect.

[0015] Preferably, the fasteners include expansion bolts and nuts, a steel plate is arranged above the composite geotextile laid on the concrete block, nuts are arranged above the steel plate, and the expansion bolts penetrate the steel plate and the composite geotextile and are inserted into the concrete block.

[0016] Preferably, the steel backing plate is connected to the upper surface of the composite geotextile by KS hot melt adhesive, and the lower surface of the composite geotextile is connected to the upper surface of the concrete body by KS hot melt adhesive.

[0017] Preferably, the connection structure between the reinforced geomembrane and concrete further includes a second-phase concrete body cast in situ on the concrete block, so that the second-phase concrete body covers the fasteners and the composite geotextile.

[0018] Preferably, a GCL bentonite pad is laid on the upper surface of the second-phase concrete body and the composite geotextile, and the GCL bentonite pad is bonded to the second-phase concrete body through bentonite paste.

[0019] The first-phase concrete body is cast in the early stage of construction, and a protruding concrete block is cast at the bottom of the first-phase concrete body, leaving the position of the second-phase concrete body uncast, and expansion bolts are buried in the concrete blocks, with the spacing between adjacent expansion bolts not exceeding 25 cm; then, the surface of the part of the first-phase concrete body where the composite geotextile is to be laid is polished to ensure flatness; the composite geotextile is passed through the expansion bolts and placed on top of the concrete block; the composite geotextile is connected to the concrete block through KS hot-melt adhesive, and then the steel pad is passed through the expansion bolts and presses the composite geotextile, and finally the nut is tightened so that the entire steel pad is evenly pressed on the geomembrane; finally, the second-phase concrete body is cast to fix the entire fastener in the concrete.

[0020] In the description of the present invention, it is necessary to understand that the terms "width", "upper", "lower", "bottom", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being “on” or “under” a second feature may mean that the first and second features are in direct contact with each other, or the first and second features are in indirect contact with each other through an intermediate medium.

[0023] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0024] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A connection structure between a reinforced geomembrane and concrete, characterized in that: include: The first-phase concrete body and the composite geotextile, a protruding concrete block is arranged at the bottom of the first-phase concrete body, the upper surface of the concrete block is lower than the soil surface, a part of the composite geotextile is laid on the upper surface of the concrete block, the composite geotextile is connected to the concrete block through fasteners, a GCL bentonite pad is laid on the upper surface of the composite geotextile, and a cement soil pad is laid on the lower surface of the composite geotextile.

2. The connection structure of reinforced geomembrane and concrete according to claim 1 is characterized in that: The fasteners include expansion bolts and nuts. A steel pad is arranged above the composite geotextile laid on the concrete block. Nuts are arranged above the steel pad. The expansion bolts penetrate the steel pad and the composite geotextile and are inserted into the concrete block.

3. The connection structure of reinforced geomembrane and concrete according to claim 2 is characterized in that: The steel backing plate is connected to the upper surface of the composite geotextile through KS hot melt adhesive, and the lower surface of the composite geotextile is connected to the upper surface of the concrete body through KS hot melt adhesive.

4. The connection structure of reinforced geomembrane and concrete according to claim 1, characterized in that: The connection structure between the reinforced geomembrane and concrete also includes a second-phase concrete body cast in situ on the concrete block, so that the second-phase concrete body covers the fasteners and the composite geotextile.

5. The connection structure of reinforced geomembrane and concrete according to claim 4, characterized in that: A GCL bentonite pad is laid on the upper surface of the second-phase concrete body and the composite geotextile, and the GCL bentonite pad is bonded to the second-phase concrete body through bentonite paste.

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