CN210621724U

CN210621724U - Water-retaining slope protection structure for arid area

Info

Publication number: CN210621724U
Application number: CN201921220163.5U
Authority: CN
Inventors: 张�成; 胡浩林
Original assignee: PowerChina Chengdu Engineering Co Ltd
Current assignee: PowerChina Chengdu Engineering Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-26
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a arid area culvert water slope protection structure relates to the side slope engineering field, solves the current side slope protective structure water retention capacity in arid area not enough, is unsuitable for the problem of afforestation. The utility model adopts the technical proposal that: the top of a slope body is provided with a drainage ditch, the slope body is paved with a waterproof cushion layer, planting soil is paved on the waterproof cushion layer, a water conduit is embedded in the planting soil, the top end of the water conduit is communicated with the drainage ditch, the water conduit is arranged downwards along a side slope, and water seepage structures are arranged on the water conduit at intervals; the planting soil surface mounting fixed network still sets up a plurality of spuds in the planting soil, and the protection network is laid to the fixed network outside, and the protection network links to each other with each spud. The surface runoff is collected to the escape canal, and rethread leading water pipe irrigates in planting soil, improves the moisture content of planting soil, improves the plant survival condition, and the leading water pipe still has the effect of storage moisture. The utility model is suitable for a highway soil slope vegetation protection engineering.

Description

Water-retaining slope protection structure for arid area

Technical Field

The utility model relates to a side slope engineering field specifically is a collect and utilize domatic runoff in arid area, improve the protective structure of side slope culvert water condition in order to maintain vegetation existence.

Background

Slope excavation is often required in road construction. In order to prevent the excavated soil slope from landslide or collapse, corresponding slope protection engineering measures are required, and the common slope protection engineering measures comprise: concrete retaining wall, slide-resistant pile, grout facing wall, anchor rope frame beam, etc.

At present, the ecological environment protection requirement is increasing day by day, the single slope engineering protection measure can not meet the development requirement of green highways, and various highway slope vegetation protection or engineering combined biological protection measures are produced by taking place, such as broadcasting grass planting, wet spraying grass planting, three-dimensional net grass planting, arched framework grass planting and frame beam piling ecological bags.

In arid regions, the rainfall is less, the water retention capacity of soil is poor, the water and soil loss is easy to occur on the side slope, the survival requirement of vegetation is difficult to maintain due to the residual water on the side slope, and even if drought-enduring herbaceous plants are planted, the plants are withered. Therefore, how to fully utilize precipitation, reduce water and soil loss and improve the survival rate of plants is a problem which needs to be considered in important points when slope vegetation protection engineering is carried out in arid regions.

SUMMERY OF THE UTILITY MODEL

The utility model provides a arid area culvert water slope protection structure solves the current side slope protective structure water retention ability in arid area not enough, is unsuitable for the problem of afforestation.

The utility model provides a technical scheme that its technical problem adopted is: the top of a slope body is provided with a drainage ditch, the slope body is paved with a waterproof cushion layer, planting soil is paved on the waterproof cushion layer, a water conduit is embedded in the planting soil, the top end of the water conduit is communicated with the drainage ditch, the water conduit is arranged downwards along a side slope, and water seepage structures are arranged on the water conduit at intervals; the planting soil surface mounting fixed network still sets up a plurality of spuds in the planting soil, and the protection network is laid to the fixed network outside, and the protection network links to each other with each spud.

Further, the method comprises the following steps: and the top of the water conduit is provided with a filtering structure. Specifically, the filtering structure is a filter screen.

Specifically, the method comprises the following steps: the water seepage structure is a flow dividing pipe connected to the water diversion pipe, and the slope angle of the flow dividing pipe is smaller than the slope angle of the side slope by 15-30 degrees.

Specifically, the method comprises the following steps: the water diversion pipes are arranged at intervals along the slope body, the bottoms of the water diversion pipes are embedded to the bottom of the slope body, and the distance between every two adjacent water diversion pipes is 1.0-2.0 meters.

Further, the method comprises the following steps: the shunt tubes are arranged on the water conduit at intervals, and the distance between every two adjacent shunt tubes on the same water conduit is 2.0-3.0 meters.

Specifically, the method comprises the following steps: the protective net is connected with each fixing pile through bolts.

Specifically, the method comprises the following steps: the impermeable cushion layer is geotextile.

The utility model has the advantages that: the surface runoff of the catchment area at the upper part of the side slope is collected by the drainage ditch, and then water is guided into the planting soil of the side slope through the water guide pipe for irrigation, so that the water content of the planting soil is improved, and the plant survival is facilitated. Herbaceous plants are sown on the planting soil, and plant roots enable the planting soil to form a large block body, so that water and soil loss is reduced. Because the water conduit is buried in the planting soil, irrigation is carried out below the ground surface, natural evaporation is less, and rainfall is fully utilized; moreover, the water conduit can store water, so that water supply can be adjusted and the rainfall collected by the drainage ditch can be fully utilized; the waterproof cushion layer can prevent water from seeping downwards, and the water content of the planting soil is maintained. A fixing net and a protective net are laid on the outer side of the planting soil, so that an integral structure is formed on the outer side of the waterproof cushion layer, the soil body on the slope body is prevented from falling, and the safety of the side slope is improved. The top of leading water pipe sets up filter equipment, reduces silt entering leading water pipe in the escape canal, avoids the leading water pipe to block up.

Drawings

Figure 1 is the utility model discloses arid area culvert water slope protection structure's schematic diagram.

Fig. 2 is an enlarged view of the area a in fig. 1.

Parts, positions and numbers in the drawings: the water-proof planting device comprises a drainage ditch 1, a water-proof cushion layer 2, planting soil 3, a water conduit 4, a fixing net 5, a fixing pile 6, a protective net 7, a filter screen 8, a shunt pipe 9 and a bolt 10.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model discloses arid area culvert water slope protection structure, slope body top set up escape canal 1, and escape canal 1 is used for compiling the surface runoff in slope body upside catchment district, and if surface runoff water flow is too big, escape canal 1 also is used for the drainage. The slope body is paved with a waterproof cushion layer 2, for example, geotextile is paved, planting soil 3 is paved on the geotextile, the planting soil 3 is soil suitable for plant growth, and the soil can be backfilled by using local materials.

A water diversion pipe 4 is buried in planting soil 3, the top end of the water diversion pipe 4 is communicated with a drainage ditch 1, the water diversion pipe 4 is arranged downwards along a side slope, and water seepage structures are arranged on the water diversion pipe 4 at intervals. The water conduits 4 are used for draining and irrigating accumulated water in the drainage ditch 1 to each position in the planting soil 3, so that the water conduits 4 can be one or more, can be laid downwards in parallel from the top of a slope to the bottom of the slope, and can also be wound into an S shape for laying. For example, the water guide pipes 4 are arranged at intervals along a slope body, the bottom of each water guide pipe 4 is embedded to the bottom of the slope body, and the distance between every two adjacent water guide pipes 4 is 1.0-2.0 meters.

The water diversion pipe 4 is provided with a water seepage structure for carrying out infiltration type irrigation on planting soil. The water seepage structure can be a water leakage hole, or as shown in fig. 1 and 2, the water seepage structure is a shunt pipe 9 connected to the water conduit 4, the pipe diameter of the shunt pipe 9 is small, the slope angle of the shunt pipe 9 is 15-30 degrees smaller than that of the side slope, namely, the slope angle of the shunt pipe 9 relative to the side slope is more gentle. The shunt tubes 9 are arranged on the water conduit 4 at intervals, for example, the distance between two adjacent shunt tubes 9 on the same water conduit 4 is 2.0-3.0 meters. In order to avoid blockage caused by a large amount of silt entering the water conduit 4, a filtering structure is arranged at the top of the water conduit 4. The filter structure is, for example, a filter screen 8.

The surface of the planting soil 3 is provided with a fixed net 5, the fixed net 5 is compact and can be a steel wire mesh or a plastic net, and the fixed net 5 enables the parts above the impermeable cushion layer 2 to form a whole. Still set up a plurality of spud piles 6 in the planting soil 3, the protection network 7 is laid to the fixed net 5 outside, and protection network 7 links to each other with each spud pile 6. For example, the exposed ends of the fixing piles 6 are provided with threaded sleeves, and the protective net 7 is connected with each fixing pile 6 through bolts 10. The fixing net 5 and the protective net 7 form an integral structure outside the impervious cushion layer 2, so that the soil on the slope body is prevented from falling, and the safety of the side slope is improved. The water-retaining slope protection structure in the arid region is particularly suitable for the vegetation protection engineering of the soil slope of the highway in the alpine and arid region.

Claims

1. Arid area culvert water slope protection structure, slope body top sets up escape canal (1), its characterized in that: a water-tight cushion layer (2) is laid on a slope body, planting soil (3) is paved and filled on the water-tight cushion layer (2), a water conduit (4) is buried in the planting soil (3), the top end of the water conduit (4) is communicated with a drainage ditch (1), the water conduit (4) is arranged downwards along the side slope, and water seepage structures are arranged on the water conduit (4) at intervals; the planting soil (3) surface mounting fixed network (5), still set up a plurality of spud piles (6) in planting soil (3), protection network (7) are laid to the fixed network (5) outside, and protection network (7) link to each other with each spud pile (6).

2. The arid region water-retaining slope protection structure of claim 1, wherein: and a filtering structure is arranged at the top of the water conduit (4).

3. The arid region water-retaining slope protection structure of claim 2, wherein: the filtering structure is a filter screen (8).

4. The arid region water-retaining slope protection structure of claim 1, wherein: the infiltration structure is shunt tubes (9) of connecting on leading water pipe (4), and the slope of shunt tubes (9) is greater than the slope 15 ~ 30 of side slope.

5. The water-retaining slope protection structure for arid regions according to any one of claims 1 to 4, which is characterized in that: the water guide pipes (4) are arranged at intervals along a slope body, the bottom of each water guide pipe (4) is embedded to the bottom of the slope body, and the distance between every two adjacent water guide pipes (4) is 1.0-2.0 meters.

6. The arid region water-retaining slope protection structure of claim 4, wherein: the shunt tubes (9) are arranged on the water guide pipe (4) at intervals, and the distance between every two adjacent shunt tubes (9) on the same water guide pipe (4) is 2.0-3.0 meters.

7. The water-retaining slope protection structure for arid regions according to any one of claims 1 to 4, which is characterized in that: the protective net (7) is connected with each fixing pile (6) through bolts (10).

8. The water-retaining slope protection structure for arid regions according to any one of claims 1 to 4, which is characterized in that: the impermeable cushion layer (2) is geotextile.