CN112252343A - Side slope packway with drainage and landscape greening irrigation functions and construction method thereof - Google Patents

Abstract

The invention discloses a side slope horse way with drainage and landscape greening irrigation functions and a construction method thereof, wherein the side slope horse way comprises a side slope and a multi-stage horse way horizontally arranged on the side slope, a drainage ditch is arranged at the inner side of the horse way close to the side slope, a planting groove is arranged beside the drainage ditch, green plants are planted in the planting groove, a cover plate is arranged at the top of the drainage ditch, and water permeable holes are uniformly formed in the cover plate; in addition, when the water level in the drainage ditch is higher than the water-blocking bank, the water-blocking bank discharges redundant water through the drainage ditch; when the water level in the drainage ditch is lower than the water blocking threshold, water can be stored in the drainage ditch and is used for irrigating green plants so as to meet the requirement of normal growth of the green plants in the season with less rainfall; and the device has the advantages of simple structure, convenient construction, short construction period and low construction cost.

Description

Side slope packway with drainage and landscape greening irrigation functions and construction method thereof

Technical Field

The invention relates to the technical field of slope support, in particular to a slope berm with drainage and landscape greening irrigation functions and a construction method thereof.

Background

In recent years, with the higher and higher requirements of the country on environmental protection in engineering construction, the construction concept of the green water mountain gradually starts to be penetrated into the engineering construction. In the construction of hydroelectric engineering, the excavation of high side slopes is often involved, in order to guarantee the stability of the side slopes and the requirements of traffic in the construction period, the side slopes are required to be provided with the streets with different widths of 1-5 m, and the green plants are planted on the streets so as to meet the construction idea of green water hills. In order to ensure the safety and stability of the excavated side slope, a concrete supporting structure is often adopted for supporting and sealing, and drainage on the slope surface of the side slope is a major risk factor affecting the safety of the side slope during rainfall. No matter for soil or rock slopes, when a large amount of accumulated water is stored on the slope surface, the slope rock-soil body is gradually softened due to the infiltration of rainwater, the physical and mechanical parameters of the slope rock-soil body can be greatly reduced, and the slope instability is probably caused finally if the slope water body is not drained in time.

At present, a method for preventing water on the slope surface of the side slope is to excavate and build drainage ditches on the side slope horse way, and the drainage ditches on all levels of horse ways ensure that rainfall on the slope surface is timely drained out of the slope body. However, the traditional drainage technology often does not fully consider the risk that the drainage ditch is invalid because gravels, branches and leaves and the like are brought into the drainage ditch by rainwater and are blocked; in addition, the berm of the traditional side slope does not have a water storage function, and landscape vegetation death often occurs due to too much or too little rainwater on the side slope in berm greening design; landscape vegetation needs to be replaced after death, and the side slope is high, so that manual restoration is difficult and the cost is high.

In the prior art, chinese patent CN210857234U discloses a combined structure for slope platform greening and protection, which includes a drainage ditch inside the platform, a greening planting groove and a safety protection net. The inner side drainage ditch and the greening planting foundation slab are connected into a whole and are formed by cast-in-place of reinforced concrete; the inner and outer ditch walls of the inner side drainage ditch are equal in height, the rear side is backfilled by graded gravel soil, and an outward flowing water slope is formed on the surface; the greening planting groove is formed on the basis of the outer groove wall of the drainage groove and the low retaining wall, and soil is backfilled inside the greening planting groove for greening planting; the safety protection net is arranged at the edge of the side slope packway platform and consists of round steel pipe columns and a galvanized wire net. However, the upper part of the drainage ditch of the structure is not shielded, and the drainage ditch is easily blocked by sand, branches and leaves and the like washed by rainwater on the slope surface and fails. In addition, because the escape canal height and planting technique groove are equal in height and do not have the intercommunication, be difficult to guarantee to plant the inslot and plant by not washout when domatic large-scale rainfall takes place, and when need watering to planting the groove, be difficult to follow the interior water intaking of escape canal.

In the prior art, chinese patent CN209144959U discloses an ecological hedgerow groove based on high slope packway escape canal, including ordinary catch basin, be provided with the plastics baffle in the ordinary catch basin, the plastics baffle falls into left side escape canal and right side planting ditch two parts with ordinary catch basin, the middle part and the bottom fixedly connected with horizontal backup pad of plastics baffle, the lower part of plastics baffle is equipped with the infiltration hole, all lay on the trench wall side of right side planting ditch and the ditch bottom surface and be fixed with geotechnological cloth, the planting soil has been laid in the right side planting ditch, plant green plant in the planting soil. However, the upper part of the intercepting ditch of the structure is not shielded, and the intercepting ditch is easily blocked by sand, branches and leaves and the like washed by rainwater on the slope surface and fails. In addition, because the height of the intercepting ditch is equal to the height of the right planting ditch and is communicated with the intercepting ditch, when accumulated water appears in the intercepting ditch, the water level in the right planting ditch is higher due to the principle of a communicating device and no drainage channel of the planting ditch, the root system of the vegetation is soaked in water for a long time and dies, and the maintenance of the long-term landscape greening of the street is not favorable.

Disclosure of Invention

Aiming at the technical problems that drainage ditches on the traditional side slope berm are easy to block and vegetation is difficult to maintain, the invention provides a side slope berm with drainage and landscape greening irrigation and a construction method thereof, which are used for solving the technical problems.

The technical scheme adopted by the invention is as follows: the utility model provides a have side slope packway of drainage and view afforestation irrigation concurrently, arranges the multistage packway on the side slope including side slope and level, the inboard that the packway is close to the side slope is provided with the escape canal, and the side in escape canal is provided with plants the groove, plants the inslot and plants green planting, the top in escape canal is provided with the apron, evenly is provided with the hole of permeating water on the apron. The arrangement of the berms on the side slope can ensure the stability of the side slope and is convenient for traffic in the construction period; planting green plants on the streets to meet the construction concept of green water green mountains. The upper part of the drainage ditch is provided with the water-permeable cover plate, so that the problem that the drainage ditch is invalid due to blockage caused by sand stones, branches and leaves and the like brought into the drainage ditch by rainwater can be solved, and the device has the advantages of simple structure, convenience in construction, short construction period and low construction cost.

Furthermore, the water permeable holes are square holes, the width of each square hole is 1-3 cm, and the distance between every two adjacent water discharging holes is 8-12 cm. Generally traditional hole of permeating water mainly adopts the mode of round hole, but frictional force is little between circular shape hole of permeating water and the grit, and the grit rolls into in the escape canal very easily. Therefore, the invention adopts the square holes which have edges and corners and can play a certain role in blocking the sand. Compared with the square hole, the round hole with the same area has better retardation effect.

Furthermore, a gravel layer is laid at the upper end of the cover plate and is formed by gravels, and the diameter of the gravels is larger than that of the water permeable holes. As the streets are planted with green plants, the green plants can fall leaves in certain seasons. In order to prevent fallen leaves from blocking the water permeable holes and directly rolling sand into the drainage ditch, the gravel layers are arranged above the cover plate, gaps among the gravel layers are complicated, the gravel layers further play a role in blocking the sand and the fallen leaves, and the drainage ditch can be prevented from being blocked by the gravel and the fallen leaves.

Further, be provided with a plurality of shelves of blocking water that are used for retaining in the escape canal, the height that blocks water shelves threshold is less than the escape canal height. When the water level in the drainage ditch is higher than the water blocking sill, the redundant water is discharged through the drainage ditch; when the water level in the escape canal is lower than the water blocking sill, water can be stored in the escape canal for irrigating green plants, so that the normal growth of the green plants can be met in the season with less rainfall.

Further, the position that the escape canal is close to the bottom is provided with the irrigation pipe that the groove was planted in the intercommunication, and the both ends parcel of irrigation pipe has geotechnological cloth. The water in the drainage ditch automatically flows into the planting groove through the irrigation pipe so as to meet the requirement of the growth water of green plants without external force; the geotextiles at the two ends of the irrigation pipe play a role in filtering, so that the irrigation pipe is prevented from being blocked by impurities.

Furthermore, the gradient of the irrigation pipe is 5 degrees, so that water in the drainage ditch can automatically and slowly flow into the planting groove.

Furthermore, a drain pipe is arranged on the side wall of the planting groove opposite to the other side of the irrigation pipe, and both ends of the drain pipe are wrapped with geotextile; the slope of the drain pipe is 5 °. In rainy seasons, the water level in the planting tank rises, and the green-planted roots die after being soaked in water for a long time; therefore, the drain pipe is arranged on the planting groove, so that redundant water in the planting groove can be drained, the root system of the green plant is prevented from dying due to long-term soaking in water, and the green plant is protected.

Furthermore, the height of the drain pipe is larger than that of the irrigation pipe, and the mode of low water inlet and high water outlet is adopted, so that the water in the planting groove can be ensured to be at a proper water level, and the water required by the normal growth of green plants is ensured.

Further, the planting groove is formed by pouring reinforced concrete, and an anchor rod extending into the side slope is arranged on the planting groove. The planting groove that reinforced concrete poured and formed intensity is high, is equipped with the stock simultaneously, has further strengthened the intensity and the stability of planting the groove.

A construction method is used for constructing the slope packway with the functions of drainage and landscape greening irrigation, and comprises the following steps:

s1 slope support: after the side slope is excavated, spraying concrete on the surface of the side slope for supporting;

s2 construction of drainage ditch: pouring a side wall of a drainage ditch on the inner side of the horse way close to the side slope, and pouring a stop ridge between the drainage ditch and the side slope; embedding irrigation pipes on the wall body of the drainage ditch close to the inner side of the side slope, and wrapping geotextiles at two ends of the irrigation pipes; the wall body of the drainage ditch far away from one side of the stop ridge is properly heightened and shares a side wall with the planting groove;

s3 construction of the water-blocking sill: pouring water blocking sills at the two ends and the middle part of the drainage ditch, wherein the height of each water blocking sill is lower than that of the drainage ditch;

s4 construction of planting grooves: pouring a planting groove, embedding a drain pipe in the wall body at one side of the planting groove, which is far away from the drainage ditch, and wrapping geotextile at two ends of the drain pipe; filling planting soil in the planting groove, and planting green plants;

s5 laying other facilities: laying a cover plate matched with the drainage ditch on the top of the drainage ditch; and laying a gravel layer on the top of the cover plate.

The upper part of the drainage ditch is provided with the water-permeable cover plate, so that the problem that the drainage ditch is invalid due to blockage caused by sand stones, branches and leaves and the like brought into the drainage ditch by rainwater can be solved, and the device has the advantages of simple structure, convenience in construction, short construction period and low construction cost.

The invention has the beneficial effects that:

1. the upper part of the drainage ditch is provided with the water-permeable cover plate, so that the problem that the drainage ditch is invalid due to blockage caused by sand stones, branches and leaves and the like brought into the drainage ditch by rainwater can be solved, and the device has the advantages of simple structure, convenience in construction, short construction period and low construction cost.

2. The gravel layer is arranged above the cover plate, gaps among the gravel layers are complicated, the gravel layer further plays a role in blocking the gravel and the fallen leaves, and the drainage ditch can be prevented from being blocked by the gravel and the fallen leaves.

3. When the water level in the drainage ditch of the water-blocking sill is higher than that of the water-blocking sill, redundant water is discharged through the drainage ditch; when the water level in the escape canal is lower than the water blocking sill, water can be stored in the escape canal for irrigating green plants, so that the normal growth of the green plants can be met in the season with less rainfall.

4. The water discharge pipe is arranged on the planting groove, so that redundant water in the planting groove can be discharged, and the water in the planting groove can be ensured to be at a proper water level by adopting a low-in and high-out mode, so that water required by the normal growth of green plants is ensured, and the green plants are protected.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a front view of the present invention.

Labeled as:

1. side slope; 2. a horse way; 3. a drainage ditch; 4. planting grooves; 5. a cover plate; 6. a gravel layer; 7. an irrigation pipe; 8. a drain pipe; 9. a sill is shifted;

301. a water blocking sill; 401. planting green; 402. an anchor rod.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Example one

Referring to fig. 1 and 2, the slope horse way with both drainage and landscape greening irrigation comprises a slope 1 and a multi-stage horse way 2 horizontally arranged on the slope, a drainage ditch 3 is arranged on the inner side of the horse way close to the slope, planting grooves 4 are arranged beside the drainage ditch, green plants 401 are planted in the planting grooves, a cover plate 5 is arranged at the top of the drainage ditch, and water permeable holes (not shown in the figure) are uniformly formed in the cover plate. The arrangement of the berms on the side slope can ensure the stability of the side slope and is convenient for traffic in the construction period; planting green plants on the streets to meet the construction concept of green water green mountains. The upper part of the drainage ditch is provided with the water-permeable cover plate, so that the problem that the drainage ditch is invalid due to blockage caused by sand stones, branches and leaves and the like brought into the drainage ditch by rainwater can be solved, and the device has the advantages of simple structure, convenience in construction, short construction period and low construction cost.

The hole of permeating water of this embodiment is the square hole, and the width of square hole is 1 ~ 3cm, and the interval between the adjacent wash port is 8 ~ 12 cm. Generally traditional hole of permeating water mainly adopts the mode of round hole, but frictional force is little between circular shape hole of permeating water and the grit, and the grit rolls into in the escape canal very easily. Therefore, the invention adopts the square holes which have edges and corners and can play a certain role in blocking the sand. Compared with the square hole, the round hole with the same area has better retardation effect.

Referring to fig. 1, this embodiment is provided with a gravel layer 6 formed of gravel having a diameter larger than that of the water permeable holes at the upper end of the cover plate. As the streets are planted with green plants, the green plants can fall leaves in certain seasons. In order to prevent fallen leaves from blocking the water permeable holes and directly rolling sand into the drainage ditch, the gravel layers are arranged above the cover plate, gaps among the gravel layers are complicated, the gravel layers further play a role in blocking the sand and the fallen leaves, and the drainage ditch can be prevented from being blocked by the gravel and the fallen leaves.

Example two

Referring to fig. 2, on the basis of the first embodiment, in the present embodiment, a plurality of water blocking sills 301 for storing water are disposed in the drainage ditch, and the height of the water blocking sills is lower than that of the drainage ditch. When the water level in the drainage ditch is higher than the water blocking sill, the redundant water is discharged through the drainage ditch; when the water level in the escape canal is lower than the water blocking sill, water can be stored in the escape canal for irrigating green plants, so that the normal growth of the green plants can be met in the season with less rainfall.

Referring to fig. 1, in this embodiment, an irrigation pipe 7 communicated with the planting groove is disposed at a position of the drainage ditch near the bottom, and both ends of the irrigation pipe are wrapped with geotextile (not shown in the figure). The water in the drainage ditch automatically flows into the planting groove through the irrigation pipe so as to meet the requirement of the growth water of green plants without external force; the geotextiles at the two ends of the irrigation pipe play a role in filtering, so that the irrigation pipe is prevented from being blocked by impurities.

Referring to fig. 1, the slope of irrigation pipe 7 in this embodiment is 5 °. Can make the water in the drainage ditch automatically and slowly flow into the planting groove.

Referring to fig. 1, in the embodiment, a drain pipe 8 is arranged on the side wall of the planting groove opposite to the irrigation pipe, and both ends of the drain pipe are wrapped with geotextile; the slope of the drain pipe 8 is 5 °. In rainy seasons, the water level in the planting tank rises, and the green-planted roots die after being soaked in water for a long time; therefore, the drain pipe is arranged on the planting groove, so that redundant water in the planting groove can be drained, the root system of the green plant is prevented from dying due to long-term soaking in water, and the green plant is protected.

Referring to fig. 1, the height of this embodiment drain pipe is greater than the height of irrigation pipe, adopts the mode of advancing height from low, can guarantee to plant the inslot water and be in suitable water level, guarantees the required water of green planting normal growth.

Referring to fig. 1, the planting groove of the present embodiment is formed by pouring reinforced concrete, and an anchor 402 extending into a side slope is provided on the planting groove. The planting groove that reinforced concrete poured and formed intensity is high, is equipped with the stock simultaneously, has further strengthened the intensity and the stability of planting the groove.

EXAMPLE III

A construction method is used for constructing the slope packway with drainage and landscape greening irrigation in the second embodiment, and comprises the following steps:

s1 slope support: after the side slope is excavated, spraying concrete on the surface of the side slope for supporting;

s2 construction of drainage ditch: pouring a side wall of a drainage ditch on the inner side of the horse way close to the side slope, and pouring a retaining ridge 9 between the drainage ditch and the side slope; embedding irrigation pipes on the wall body of the drainage ditch close to the inner side of the side slope, and wrapping geotextiles at two ends of the irrigation pipes; the wall body of the drainage ditch far away from one side of the stop ridge is properly heightened and shares a side wall with the planting groove;

s3 construction of the water-blocking sill: pouring water blocking sills at the two ends and the middle part of the drainage ditch, wherein the height of each water blocking sill is lower than that of the drainage ditch;

s4 construction of planting grooves: pouring a planting groove, embedding a drain pipe in the wall body at one side of the planting groove, which is far away from the drainage ditch, and wrapping geotextile at two ends of the drain pipe; filling planting soil in the planting groove, and planting green plants;

s5 laying other facilities: laying a cover plate matched with the drainage ditch on the top of the drainage ditch; and laying a gravel layer on the top of the cover plate.

According to the invention, the water-permeable cover plate is arranged at the upper part of the drainage ditch, so that the problem that the drainage ditch is invalid due to blockage caused by that sand stones, branches and leaves and the like are brought into the drainage ditch by rainwater can be avoided, and the device has the advantages of simple structure, convenience in construction, short construction period and low construction cost; in addition, when the water level in the drainage ditch of the water blocking stop sill is higher than that of the water blocking stop sill, redundant water is discharged through the drainage ditch; when the water level in the drainage ditch is lower than the water blocking threshold, water can be stored in the drainage ditch and is used for irrigating green plants so as to meet the requirement of normal growth of the green plants in the season with less rainfall; the drain pipe still can discharge and plant the inslot surplus water, adopts the mode of advancing lowly and surpassing, can guarantee to plant the inslot water and be in suitable water level, guarantees the required water of green plant normal growth, plays the guard action to green planting.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a have side slope packway of drainage and view afforestation irrigation concurrently, includes that side slope (1) and level arrange multistage packway (2) on the side slope, the inboard that the packway is close to the side slope is provided with escape canal (3), and the side in escape canal is provided with plants groove (4), plants inslot and plants green planting (401), its characterized in that, the top in escape canal is provided with apron (5), evenly is provided with the hole of permeating water on the apron.

2. The slope horse way with both drainage and landscaping irrigation according to claim 1, wherein the water permeable holes are square holes with a width of 1-3 cm and a distance between adjacent drainage holes of 8-12 cm.

3. A slope horse way with both drainage and landscaping irrigation according to claim 1, wherein the upper end of the cover plate is laid with a gravel layer (6) consisting of gravel having a diameter larger than the diameter of the water permeable holes.

4. The slope horse way with both drainage and landscaping irrigation according to claim 1, wherein a plurality of water blocking sills (301) for water storage are arranged in the drainage ditch, and the height of the water blocking sills is lower than that of the drainage ditch.

5. The slope horse way with both water drainage and landscaping irrigation according to claim 1, wherein the drainage ditch is provided with an irrigation pipe (7) communicated with the planting groove at a position close to the bottom, and both ends of the irrigation pipe are wrapped with geotextile.

6. A side slope horse way with both drainage and landscaping irrigation according to claim 5, wherein the slope of the irrigation pipe (7) is 5 °.

7. The slope packway with the functions of drainage and landscaping irrigation as claimed in claim 5, wherein a drain pipe (8) is arranged on the side wall of the planting groove opposite to the other side wall of the irrigation pipe, and both ends of the drain pipe are wrapped with geotextile; the gradient of the drain pipe (8) is 5 degrees.

8. The slope horse way with both water drainage and landscaping irrigation according to claim 7, wherein the height of the water drainage pipe is greater than the height of the irrigation pipe.

9. The slope packway with both water drainage and landscaping irrigation as claimed in any one of claims 1-8, wherein the planting groove is cast of reinforced concrete and is provided with an anchor rod (402) extending into the slope.

10. A construction method for constructing the slope horse way with both drainage and landscaping irrigation as claimed in claim 9, comprising the steps of:

s1 slope support: after the side slope is excavated, spraying concrete on the surface of the side slope for supporting;

s2 construction of drainage ditch: pouring a side wall of a drainage ditch on the inner side of the horse way close to the side slope, and pouring a stop ridge (9) between the drainage ditch and the side slope; embedding irrigation pipes on the wall body of the drainage ditch close to the inner side of the side slope, and wrapping geotextiles at two ends of the irrigation pipes; the wall body of the drainage ditch far away from one side of the stop ridge is properly heightened and shares a side wall with the planting groove;

s3 construction of the water-blocking sill: pouring water blocking sills at the two ends and the middle part of the drainage ditch, wherein the height of each water blocking sill is lower than that of the drainage ditch;

s4 construction of planting grooves: pouring a planting groove, embedding a drain pipe in the wall body at one side of the planting groove, which is far away from the drainage ditch, and wrapping geotextile at two ends of the drain pipe; filling planting soil in the planting groove, and planting green plants;

s5 laying other facilities: laying a cover plate matched with the drainage ditch on the top of the drainage ditch; and laying a gravel layer on the top of the cover plate.

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