CN210341799U - Karst geology river course structure - Google Patents
Karst geology river course structure Download PDFInfo
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- CN210341799U CN210341799U CN201920367557.7U CN201920367557U CN210341799U CN 210341799 U CN210341799 U CN 210341799U CN 201920367557 U CN201920367557 U CN 201920367557U CN 210341799 U CN210341799 U CN 210341799U
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Abstract
The utility model discloses a karst geology river course structure, include: a riverway bottom structure system and an underwater vegetation slope protection system; the river channel bottom structure system comprises a hard bottom sealing layer arranged at the bottom of a river channel foundation, and a leveling layer, an anti-seepage double-layer film and a clay flexible cushion bottom protecting layer which are sequentially arranged on the hard bottom sealing layer from bottom to top; the underwater vegetation slope protection system comprises a revetment arranged on two anti-seepage double-layer films on two sides of the bottom of a river channel, a hard bottom sealing layer, a revetment area anti-seepage film, a flexible cushion layer, a slope protection layer and a landscape pebble layer, wherein the hard bottom sealing layer, the revetment area anti-seepage film, the flexible cushion layer, the slope protection layer and the landscape pebble layer are sequentially arranged in an. The utility model discloses river course structure is to karst strong crack development area, can prevent that the river from oozing the loss down, also can keep apart the destruction of pressure-bearing water conservancy to the river course structure to the soil and water that makes the river course keeps good.
Description
Technical Field
The utility model belongs to the technical field of artifical river course construction, concretely relates to karst geology river course structure.
Background
Along with the construction of large-scale building exhibition parks, garden exhibition parks and large-scale water park projects, the design of artificial river changing, large-scale artificial river channels and artificial water system landscapes is more and more widely applied to municipal garden projects.
The artificial river channel is different from the original natural river channel, the geology of the artificial river channel is not naturally formed, natural hydraulic power supply is not available, natural water retention is not available, and the artificial river channel is suitable for the natural environment of aquatic organisms; especially in karst geological development areas, karst caves, cracks and loose rock strata water channels can cause the loss of artificial river water; karst fracture water in southern areas has certain pressure bearing performance, the water level changes greatly along with seasons, a river can be replenished in rainy seasons, but strong water pressure can damage the riverbed in a large area, so that the sediment loss of the riverbed is caused, and the growth environment of aquatic plants is damaged; in dry seasons, a large amount of river water is lost to form a dry river, which greatly affects the ornamental value of the garden landscape.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a karst geology river course structure, it develops the area to the strong crack of karst, can prevent that the river from oozing down and run off, also can keep apart the destruction of pressure-bearing water conservancy to the river course structure to the soil and water that makes the river course keeps good.
The utility model discloses a following technical scheme realizes.
Karst geology river course structure, its characterized in that includes: a riverway bottom structure system and an underwater vegetation slope protection system;
the river channel bottom structure system comprises a hard bottom sealing layer arranged at the bottom of a river channel foundation, and a leveling layer, an anti-seepage double-layer film and a clay flexible cushion bottom protecting layer which are sequentially arranged on the hard bottom sealing layer from bottom to top;
the underwater vegetation slope protection system comprises a revetment arranged on two anti-seepage double-layer films at two sides of the bottom of a river channel, a hard bottom sealing layer, a revetment area anti-seepage film, a flexible cushion layer, a slope protection and a landscape pebble layer, wherein the hard bottom sealing layer, the revetment area anti-seepage film, the flexible cushion layer, the slope protection and the landscape pebble layer are sequentially arranged in an underwater revetment;
the bottom protecting layer comprises a flexible bottom protecting layer and a rigid bottom protecting layer; the flexible bottom protecting layer is formed by paving one or a mixture of a plurality of crushed stones, cobblestones and stones with small grain size; the rigid bottom protecting layer is formed by paving plain concrete;
the anti-seepage double-layer film comprises a lower-layer geomembrane arranged on the leveling layer and an upper-layer functional anti-seepage film arranged on the lower-layer geomembrane.
As a preferred technical scheme, the hard sealing bottom layer is built by mortar rubble.
As a preferred technical scheme, the leveling layer is poured by adopting plain concrete or cement mortar.
As a preferred technical scheme, the flexible cushion layer is paved by using one or a mixture of graded broken stones, cohesive soil and sandy soil.
As a preferred technical scheme, the impermeable membrane used in the upper functional impermeable membrane and the bank protection zone impermeable membrane is a geotextile impermeable membrane or an HDPE impermeable membrane.
As a preferred technical scheme, the dike and the revetment are built by adopting an ecological gabion.
The utility model discloses beneficial effect:
1) the utility model discloses karst geology river course structure can keep artifical river course normal water level when dry season, prevents the soil erosion and water loss that causes because of the crack, can satisfy sight, usability requirement.
2) The utility model discloses karst geology river course structure can prevent that karst crack water from to the washing away of river course bottom plate when rainy season, causes soil erosion and water loss, influences river course ecological environment, leads to the river course not enough from the purification ability, influences its sight and usability.
3) The karst geological riverway structure of the utility model can provide a better growing environment for aquatic plants for the slow flow riverbed, and keep the water quality clean; for a rapid river channel, the device can prevent the scouring damage effect of river water on the riverbed.
Drawings
Fig. 1 is a schematic structural view of the river structure of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
the meanings of the marks in the above figures are as follows: 1-hard sealing bottom layer, 2-leveling layer, 3-impermeable double-layer film layer, 31-lower geomembrane, 32-upper functional impermeable film, 4-clay flexible cushion layer, 5-bottom protection layer, 51-flexible bottom protection layer, 52-rigid bottom protection layer, 6-embankment, 7-bank protection zone impermeable film, 8-flexible cushion layer, 9-slope protection, 10-landscape pebble layer, 11-river bottom structure system, 12-underwater vegetation slope protection system and 13-river bottom surface.
Detailed Description
The present invention is further described in the following embodiments with reference to the attached drawings, and it should be noted that the following embodiments are only illustrative of the present invention by way of example, but the scope of the present invention is not limited thereto, and all those skilled in the art can substitute the equivalent of the present invention by the spirit of the present invention.
Examples
The karst geological river structure, please refer to fig. 1 and fig. 2, including: a riverway bottom structure system 11 and an underwater vegetation slope protection system 12;
the river channel bottom structure system 11 comprises a hard bottom sealing layer 1 arranged on a river channel bottom surface 13, and a leveling layer 2, an anti-seepage double-layer film 3, a clay flexible cushion layer 4 and a bottom protection layer 5 which are sequentially arranged on the hard bottom sealing layer 1 from bottom to top;
the underwater vegetation slope protection system 12 comprises a bank protection 6 arranged on anti-seepage double-layer films 3 on two sides of a river channel bottom surface 13, a hard bottom sealing layer 1, a bank protection area anti-seepage film 7, a flexible cushion layer 8, a slope protection 9 and a landscape pebble layer 10 which are sequentially arranged in an underwater bank protection area from bottom to top;
the bottom protecting layer 5 comprises a flexible bottom protecting layer 51 and a rigid bottom protecting layer 52; the flexible bottom protecting layer 51 is formed by paving one or a mixture of a plurality of crushed stones, cobblestones and stones with small grain size; the rigid bottom protecting layer 52 is formed by paving plain concrete; as shown in fig. 2, for a slow flow river channel with a river bed gradient less than or equal to 3%, the bottom protection layer 5 adopts a flexible bottom protection layer 51; for a torrent river channel with the river bed gradient larger than 3%, the bottom protecting layer 5 adopts a rigid bottom protecting layer 52;
the anti-seepage double-layer film 3 comprises a lower geomembrane 31 arranged on the leveling layer 2 and an upper functional anti-seepage film 32 arranged on the lower geomembrane 31;
in the structure, the hard bottom sealing layer 1 at the bottom of the river channel structure can change the bottom structure of the river channel into a waterproof bottom plate, prevent the confined water from upwelling or river from seeping downwards, can take the supporting structure effect of the river crossing over stagnant water karst caves and large cracks, and does not influence the communication between the confined water power of the karst caves and cracks and the surrounding underground water systems; the river channel structure adopts a double-layer membrane structure, namely the lower layer is a protective layer, a geomembrane bedding bottom is adopted, the upper part is a functional layer and adopts an anti-seepage geomembrane or HDPE anti-seepage membrane, the seepage of river water in dry seasons can be prevented, the tensile stress of a hard structure of the river bottom on membrane cloth is reduced, the damage of the membrane cloth is reduced, and the use function of a permanent structure is achieved; the bottom protecting layer 5 comprises a flexible bottom protecting layer 51 and a rigid bottom protecting layer 52; for the slow flow riverbed, the flexible bottom protecting layer 51 can provide good growing environment for aquatic plants, and the function of keeping water quality clean is achieved; for a fast river, the rigid bottom protecting layer 52 can prevent the scouring damage effect of river water on the river bed.
Further, in the present embodiment, the hard back cover layer 1 is built by using grouted rubble.
Further, in this embodiment, the leveling layer 2 is poured by using plain concrete or cement mortar.
Further, in this embodiment, the flexible cushion 8 is paved by using one or a mixture of graded broken stones, cohesive soil and sand.
Further, in this embodiment, the upper functional impermeable membrane 32 and the shore protection zone impermeable membrane 7 are made of geotextile impermeable membrane or HDPE impermeable membrane.
Further, in this embodiment, the dike 6 and the revetment 9 are built by using an ecological gabion.
For the structure pointed out by the above embodiment or the karst geological river structure of the present invention, it is usually used for the bottom and the revetment structure below the normal water level of the artificial river in the karst development area, or used for the artificial river channel and the revetment structure in the karst development area, or used for the landscape pool, the small artificial lake, the bottom of the pool and the revetment structure in the karst development area; but to the area that is not karst geology, be not the area that large-scale stagnant water solution cavity, large-scale crack are developed promptly, in order to reach the utility model discloses same effect adopts the utility model discloses a karst geology river course structure all falls into the utility model discloses a protection scope.
Claims (5)
1. Karst geology river course structure, its characterized in that includes: a river bottom structure system (11) and an underwater vegetation slope protection system (12);
the river channel bottom structure system (11) comprises a hard bottom sealing layer (1) arranged on the bottom surface of the river channel, and a leveling layer (2), an anti-seepage double-layer film (3), a clay flexible cushion layer (4) and a bottom protecting layer (5) which are sequentially arranged on the hard bottom sealing layer (1) from bottom to top;
the underwater vegetation slope protection system (12) comprises a protection dike (6) arranged on two anti-seepage double-layer films (3) at two sides of the bottom surface of a river channel, a hard bottom sealing layer (1) arranged in an underwater bank protection area from bottom to top, an anti-seepage film (7) in a bank protection area, a flexible cushion layer (8), a protection slope (9) and a landscape pebble layer (10);
the bottom protecting layer (5) comprises a flexible bottom protecting layer (51) and a rigid bottom protecting layer (52); the rigid bottom protecting layer (52) is formed by paving plain concrete;
the anti-seepage double-layer film (3) comprises a lower-layer geomembrane (31) arranged on the leveling layer (2) and an upper-layer functional anti-seepage film (32) arranged on the lower-layer geomembrane (31).
2. A karst geological river structure according to claim 1, characterised in that said hard back-cover (1) is built of grouted rubble.
3. The karst geological river structure according to claim 1, characterized in that the leveling layer (2) is poured with plain concrete or cement mortar.
4. The karst geological river structure according to claim 1, characterized in that the impermeable membrane used in the upper functional impermeable membrane (32), the revetment zone impermeable membrane (7) is a geotextile impermeable membrane or a HDPE impermeable membrane.
5. The karst geological river structure as claimed in any one of claims 1 to 4, wherein the dike guards (6) and the revetments (9) are built by adopting ecological gabion gabions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920367557.7U CN210341799U (en) | 2019-03-21 | 2019-03-21 | Karst geology river course structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920367557.7U CN210341799U (en) | 2019-03-21 | 2019-03-21 | Karst geology river course structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210341799U true CN210341799U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920367557.7U Active CN210341799U (en) | 2019-03-21 | 2019-03-21 | Karst geology river course structure |
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| CN (1) | CN210341799U (en) |
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