CN223061620U - Slope protection structure combining locking and draining functions - Google Patents

Abstract

The utility model proposes a slope protection structure combining locking and drainage, comprising: a frame soil beam, which is arranged on the slope surface of the slope, the frame soil beam comprises a plurality of cross beams and a plurality of longitudinal beams which are cross-arranged to form a plurality of frames; a plant layer is arranged in the frame; a water-locking material is sprayed on the soil of the frame soil beam to form a frame soil beam water-locking layer to reduce the probability of rainwater penetrating from the frame soil beam into the slope body, and a water-locking material is sprayed on the soil of the plant layer to form a plant layer water-locking layer to reduce the probability of rainwater penetrating from the plant layer into the slope body; a drainage pipe is arranged in the cross beam, and the drainage pipe at least partially extends in the up and down directions to connect the upper and lower adjacent frames, so that the water flow of the frame above it can be discharged along the drainage pipe; the accumulated water at the bottom of the frame flows into the drainage pipe, so that the water in the frame can flow out quickly, reducing the probability of rainwater penetrating into the soil, and by arranging the water-locking layer and the drainage pipe, it is possible to effectively reduce the penetration of rainwater into the slope body, making the slope body more stable.

Description

Slope protection structure combining locking and draining functions

Technical Field

The utility model relates to the technical field of slope protection, in particular to a slope protection structure combining lock and drainage.

Background

In the construction of railways and highways, parts of road sections are often excavated or filled, and many slopes are thus created. Because the excavation angles of road sections are different, and the geological conditions of different road sections are also different, many side slope structures are unstable and collapse is easy.

The traditional slope protection technology adopts concrete, stone and other rigid materials to be arranged on the slope surface so as to strengthen and protect the slope surface. Although the rigid materials are additionally arranged on the slope surface, the protection effect can be achieved to a certain extent, the rigid materials destroy the original natural soil, the growth of plants can be prevented, and the slope surface without the plants on the surface is easy to run off water and soil.

In the prior art, the ecological slope protection technology is adopted, drought-enduring and deep-root plants are planted on the slope surface, and geosynthetic materials are arranged to enable the slope to be more stable, prevent the plants from growing, and be beneficial to protecting natural environment.

The ecological slope protection technology is often provided with the protection plate or the protection brick on the slope, physical support can be provided for the slope in a short period, the probability of slope collapse, peeling and damage can be reduced, but the protection plate and the protection brick do not have a waterproof effect, the capability of preventing rainwater from penetrating into the slope is poor, and the drainage function is lacked. When raining, rainwater permeates into the side slope to soften the side slope body, so that the stability of the side slope is reduced, and the rainwater is easy to gather in the side slope due to the lack of drainage functions of the protective bricks and the protective plates, so that the risk of landslide is increased.

Disclosure of utility model

The present utility model solves at least one of the technical problems in the related art to a certain extent.

Therefore, the application aims to provide the slope protection structure with the combination of lock and drainage, which can quickly drain water penetrating into the side slope, has good waterproof performance on the surface of the side slope and reduces the probability of rainwater penetrating into the side slope.

The slope protection structure with combined lock and drainage comprises a frame soil beam, a plurality of longitudinal beams, a plant layer and a frame soil beam lock layer, wherein the frame soil beam is arranged on a slope surface of a slope, is formed by compacting and uplifting soil of the slope, is convenient to manufacture, comprises the plurality of cross beams, the plurality of longitudinal beams and the plurality of longitudinal beams which are mutually intersected to form the plurality of frame grids, the plant layer is arranged in the frame grids, can reduce water and soil loss of the slope, can enable roots of plants to extend into the soil in the slope to reduce the collapse probability of the slope, can protect the original ecological environment, and is formed by spraying water locking materials on the soil of the frame soil beam. The water-locking material is sprayed on the soil of the plant layer to form a plant layer water-locking layer so as to reduce the probability of rainwater penetrating into a slope from the surface of a frame soil beam and the plant layer, the water-locking layer is arranged in the cross beam, and the water-locking layer extends at least partially along the up-down direction so as to be communicated with two adjacent grids above the water-locking layer, so that the rainwater of the grids above the water-locking layer is discharged along the water-locking layer, when water exists in one of the grids, the water in the grids flows downwards under the action of gravity and finally is collected at the bottom of the grids, and as the water-locking layer is arranged at the bottom of each of the grids, the accumulated water at the bottom of the grids flows into the water-locking layer so as to enable the water in the grids to flow out quickly, and the probability of the rainwater penetrating into the soil is reduced.

In some embodiments of the application, the side slope includes a roof on which a water-locking material is sprayed to form a roof water-locking layer.

In some embodiments of the application, the concentration of water-locking material sprayed on the roof and frame soil beams is a, and the concentration of water-locking material sprayed on the plant layer is b, a > b, helping to protect plant growth of the plant layer and reducing the probability of rain water penetrating into the slope from the exposed surface of the frame soil beams.

In some embodiments of the application, the frame has one or more frames, the concentration of the water locking material sprayed on the plant layer is unique in one frame, and the lower the height of the frame is, the higher the concentration of the water locking material sprayed on the plant layer is in a plurality of frames arranged up and down, and the higher the concentration of the water locking material in the lower frame is favorable for locking water and reducing the infiltration of rainwater because the accumulated water of the upper frame is stored in the lower frame.

In some embodiments of the application, the drainage pipes are provided with a plurality of drainage pipes, and in two adjacent drainage pipes which are arranged up and down, the upper drainage pipe and the lower drainage pipe are not positioned on the same longitudinal line, so that water discharged by the upper drainage pipe cannot flow down directly into the lower drainage pipe, water cannot flow from the upper drainage pipe to the lower drainage pipe along a fixed route, the scouring of the soil in the frame caused by rainwater flow during drainage is reduced, and the probability of rainwater infiltration into the interior of a slope is reduced.

In some embodiments of the application, the drain pipe comprises a first pipe section provided with an upper water receiving port for receiving rainwater in a sash above the upper water receiving port, a second pipe section connected below the first pipe section, the second pipe section comprising a lower water outlet for discharging water in the drain pipe, the water entering the drain pipe from the upper water receiving port and then sequentially flowing through the first pipe section and the second pipe section and finally flowing out of the lower water outlet at the bottom of the second pipe section, the area of the upper water receiving port being larger than the area of the lower water outlet, the cross-sectional area of the first pipe section being not smaller than the cross-sectional area of the second pipe section, so that the water flow speed sequentially increases in the first pipe section and the second pipe section, the water discharging speed is enhanced, the water is rapidly discharged, and the probability that rainwater enters the interior of a slope is reduced.

In some embodiments of the present application, the first pipe section is a reducer with a gradually decreasing pipe diameter from top to bottom so that the flow velocity of the water flowing through the first pipe section is gradually increased, and the second pipe section is a reducer with a gradually decreasing pipe diameter from top to bottom so that the flow velocity of the water flowing through the second pipe section is gradually increased so that the flow velocity of the water flowing through the drain pipe is continuously increased to accelerate the drainage, and the increasing amplitude of the water flow is slower so as to reduce the impact of the abrupt change of the water flow velocity on the wall of the drain pipe, thereby prolonging the service life of the drain pipe.

In some embodiments of the application, the slope further comprises a drainage groove arranged at the bottom of the slope, and the drainage groove is communicated with the drainage pipe;

The water draining groove is strip-shaped, is positioned below the frame soil beam and extends along the length direction of the cross beam, is provided with a water inlet positioned below the water draining pipe so as to enable the water draining groove to be communicated with the water draining pipe, and water in the frame lattice flows downwards through at least one water draining pipe and then flows into the water draining groove so as to enable the water to be drained from the slope surface to the slope bottom.

In some embodiments of the application, a plurality of drainage pipes are arranged on the same cross beam at intervals, the farthest distance between the two drainage pipes is D1, the distance between the left end and the right end of the drainage groove is D2, and D2 is more than or equal to D1, so that water flowing out of the drainage pipes can be received by the drainage groove.

In some embodiments of the present application, a plurality of longitudinal grooves are further provided on the slope surface, the intervals between the longitudinal grooves are not greater than 20cm, and the width of the longitudinal grooves is any value between 3cm and 5cm, so that the water flow on the slope surface flows downwards along the longitudinal grooves, and the water in the frame can flow into the drain pipe more quickly.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the overall appearance of a slope protection structure according to an embodiment of the present application disposed on a side slope;

FIG. 2 is a schematic illustration of a side slope spray water-locking material according to an embodiment of the present application;

FIG. 3 is a side view of a slope protection structure according to an embodiment of the present application disposed on a side slope;

FIG. 4 is a schematic view of a slope protection structure according to an embodiment of the present application;

Fig. 5 is a schematic view of a drain pipe of the slope protection structure according to the embodiment of the present application.

In the above figures:

100. slope protection structure;

1. frame soil beam, 11, cross beam, 12, longitudinal beam, 13 and frame lattice;

2. a plant layer;

3. 31 parts of drain pipe, 311 parts of first pipe section, 311 parts of upper water receiving port, 32 parts of second pipe section, 321 parts of lower water discharging port;

4. a drain tank, 41, a water inlet;

5. slope 51, slope surface 52, slope top 53, slope body;

61. The frame soil beam water-locking layer, 62, the plant layer water-locking layer, 63, the slope roof water-locking layer;

7. Foot-pressing;

8. and (3) foundation.

Detailed Description

The present utility model will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly connected, or indirectly connected through an intermediary, or may be in communication with the interior of two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the construction process of roads and railways, a plurality of slopes 5 are generated at two sides of the roads, and the slopes 5 are unstable in structure and easy to collapse. The conventional slope protection technology mostly adopts rigid materials such as concrete, stone and the like to be arranged on the slope 51 so as to strengthen and protect the slope 51. Although the slope 51 is additionally provided with rigid materials, the protection effect can be achieved to a certain extent, the rigid materials destroy the original natural soil, the growth of plants can be prevented, the biological diversity is reduced, the natural ecological environment is destroyed, and the slope 51 without plants on the surface is easy to run off water and soil.

In the prior art, the ecological slope protection technology is mostly adopted, drought-enduring and deep-root plants are planted on the slope surface 51, and geosynthetic materials are arranged to enable the slope 5 to be more stable, the growth of the plants is not hindered, and the natural environment can be protected. The ecological slope protection technology is often provided with the protection plate or the protection brick on the slope surface 51, can provide physical support for the side slope 5 in a short period, can reduce the probability of collapse, peeling and damage of the side slope 5, but the protection plate and the protection brick have no waterproof effect, have poorer capability of preventing rainwater from penetrating into the side slope 5 and lack drainage function.

When raining, rainwater permeates into the side slope 5, so that the slope body 53 of the side slope 5 is softened, the stability of the side slope 5 is reduced, and the rainwater is easily accumulated in the side slope 5 due to the lack of drainage functions of the protection bricks and the protection plates, so that the risk of landslide is increased.

In view of this, the present application provides a slope protection structure 100 with combined water locking and draining, in which the water locking layer can prevent rainwater from penetrating into soil, the draining pipe can drain the rainwater falling onto the surface of the side slope 5 rapidly, the water-proof performance of the surface of the side slope 5 is better, and landslide is not easy to generate.

Referring to fig. 1 to 5, a slope protection structure 100 with combined lock and drainage includes a frame soil beam 1, a plant layer 2, and a drainage channel 4 provided at the bottom of a slope 5.

Referring to fig. 1, a slope 5 is a target to be protected by a slope protection structure 100 according to the present application. The side slope 5 comprises a slope body 53, a slope top 52 and a slope surface 51, wherein the slope surface 51 is an inclined surface, and the slope top 52 is an inclined surface or plane with low inclination degree. When rainfall occurs, both the slope 51 and the slope roof 52 are dropped with rainwater. The bottom of the side slope is provided with a ballast 7 for supporting the bottom of the slope surface of the side slope, and the bottom of the side slope body is provided with a foundation 8 for supporting the bottom of the side slope body, so that the collapse probability of the side slope body is reduced.

The frame soil beam 1 is arranged on the slope surface 51 of the side slope 5, the frame soil beam 1 comprises a plurality of cross beams 11 and a plurality of longitudinal beams 12, and the cross beams 11 and the longitudinal beams 12 are mutually intersected to form a plurality of frame lattices 13.

When the frame lattice 13 is needed to be described, the frame lattice 13 is generally rectangular, so that the cross beam 11 and the longitudinal beam 12 have better supporting effect on the slope 51, and the arrangement of the frame soil beam 1 on the slope 51 is more attractive.

The frame soil beam 1 is formed by compacting soil on the slope surface 51, and a protection plate, a protection brick or a concrete structure is not used, so that the cost of the frame soil beam 1 is effectively reduced, additional transportation materials are not needed, and the labor cost is reduced.

The plant layer 2 is arranged in the frame 13 formed by the mutual intersection of the longitudinal beam 12 and the transverse beam 11, the plant layer 2 can reduce the water and soil loss of the slope surface 51, and the roots of plants extend into the soil in the slope body 53 so as to reduce the collapse probability of the slope body 53 and protect the original ecological environment.

The water-locking material is sprayed on the soil of the frame soil beam to form a frame soil beam water-locking layer 61 so as to reduce the probability of rainwater penetrating into the interior of the slope from the soil of the frame soil beam.

The water-blocking material is sprayed on the soil of the plant layer to form a plant layer water-blocking layer 62, so that the probability that rainwater permeates into the interior of the slope from the soil of the plant layer is reduced.

It should be noted that the water-locking material is not an important point of the present application, and any commercially available water-locking material may be used. The water-locking material can chemically react with water-absorbing hydroxyl groups on the surface of soil to remove the water-absorbing groups of the soil, and uniformly distributed nano structures are formed on the surface layer of soil particles after the chemical reaction of the water-locking material, so that an automatic water-locking surface is formed, the contact between soil and water drops is blocked, and the slope body has better water locking performance.

Referring to fig. 4, the drain pipe 3 is provided in the cross member 11, and the drain pipe 3 extends at least partially in the up-down direction to communicate with the upper and lower adjacent lattices 13 so that the water flow of the lattice 13 located thereabove is discharged along the drain pipe 3.

It should be noted that, each sash 13 is arranged in one-to-one correspondence with one drain pipe 3 at the bottom of the sash 13, so that the accumulated water in each sash 13 can be drained through the drain pipe 3, and the probability of accumulated water in the sash 13 is reduced;

The drain tank 4 is provided at the bottom of the slope 5 and communicates with the drain pipe 3 located at the lowermost position. The number of drain pipes 3 can be increased appropriately closer to the toe, i.e. more densely arranged, to ensure that the drainage is smooth.

When water exists in one of the frames 13, the water in the frame 13 flows downwards under the action of gravity and finally gathers at the bottom of the frame 13, and as the bottom of each frame 13 is provided with one drain pipe 3, the accumulated water at the bottom of the frame 13 flows into the drain pipe 3.

When the frame 13 is installed at the bottommost part of the frame soil beam 1, the accumulated water in the frame 13 flows into the drain pipe 3 and then directly flows into the drain tank 4, reaches the bottom of the slope 51, and is discharged.

If the frame 13 is also provided below the frame 13, the accumulated water in the frame 13 flows into the drain pipe 3 and then is discharged into the frame 13 below, and is discharged into the drain pipe 3 below together with the accumulated water in the frame 13 below, and flows into the drain pipe 3 at the bottommost part in the frame 13 below and then flows into the drain tank 4, thereby realizing the drainage of the slope 51.

When there is water accumulation on the roof 52, the water on the roof 52 flows down the slope 51, flows into the sash 13, and then flows through the drain pipe 3 into the drain tank 4.

Compared with the prior art, the slope protection structure 100 is provided with the drainage system and the water locking layer, the frame soil beam water locking layer 61 is formed on the frame soil beam, the plant layer water locking layer 62 is formed on the plant layer, so that rainwater infiltration into the interior of a slope can be effectively reduced, the risk of collapse and damage of the slope is reduced, the drainage system comprises the drainage pipe 3 and the drainage groove 4, the drainage pipe 3 is positioned at the bottom of the frame 13, the drainage groove 4 is positioned at the bottom of the slope surface 51, rainwater falling into the frame 13 on the slope top 52 and the slope surface 51 flows into the drainage groove 4 through the drainage pipe 3 and is discharged through the drainage groove 4, the rainwater infiltration into the interior of the slope 53 can be reduced, and the probability of damage of the slope 5 is reduced.

In some embodiments of the present application, the plant layer 2 is planted in the frame 13 by using a soil-covered grass-spraying mode, and after the soil-covered grass-spraying is finished, a non-woven geotextile is covered above the plant layer 2 for maintenance, so that the plants are in a warm and humid environment, and germination of plant seeds is facilitated.

In some embodiments of the application, the side slope 5 includes a roof 52, and the roof 52 is sprayed with a water-locking material to form a roof water-locking layer 63, which reduces the probability of rain water entering the slope 53 from the roof 52 and reduces the probability of damage to the slope 53.

In some embodiments of the application, the frame soil beam 1 is formed by compaction of three layers of soil on the slope surface 51 of the side slope 5. The frame soil beam 1 is sprayed with a water locking material to form a frame soil beam water locking layer.

When rainwater flows on the frame soil beam 1, the frame soil beam water locking layer can block rainwater from entering the frame soil beam 1, so that the water locking effect of the frame soil beam 1 is enhanced, the probability that rainwater enters the frame soil beam 1 is reduced, and the probability that rainwater enters the slope 53 is reduced.

Specifically, the soil for making the frame soil beam 1 needs to select materials such as cohesive soil or loam which are convenient to compact and lock water, so as to compact the soil conveniently. And the moisture in the soil is also tested, and when the moisture is in a reasonable interval, the soil is compacted.

The soil for manufacturing the frame soil beam 1 is divided into three layers, namely an inner layer, a secondary outer layer and an outermost layer, the thickness of each layer of soil is between 10cm and 15cm, and the three layers of soil are respectively rolled by a road roller or a compactor so as to compact the soil.

After compacting the inner layer soil and the secondary outer layer soil, spraying the water locking material on the outer surface of the secondary outer layer soil, spraying a small amount of water locking material for at least three times, and paving the outermost layer soil after waiting for the water locking material to be dried.

When the outermost layer soil is compacted, the water locking material is sprayed again, and a small amount of water locking material is sprayed for a plurality of times for at least five times, so that a more stable frame soil beam water locking layer is formed, and the water locking capability is enhanced.

When the frame soil beam 1 is manufactured, the mounting position of the drain pipe 3 is reserved, and the drain pipe 3 is mounted in the cross beam 11, so that the mounting difficulty of the drain pipe 3 is reduced.

In some embodiments, the frame earth beam 1 is rectangular with a cross section of 0.5m x 0.5m or 0.2 x 0.2m taken perpendicular to the plane of the ramp 51, with good strength.

In some embodiments of the present application, a water-blocking material is sprayed onto the plant layer 2 to form a plant layer water-blocking layer 62, reducing the probability of rain water entering the interior of the slope 53 from the soil within the sash 13.

In some embodiments, the plant layer 2 adopts a foreign soil grass spraying method, and mixed solution comprising grass seeds, wood fibers, compound fertilizer, water-retaining agent, adhesive and the like is sprayed in the frame 13, so that plants can grow quickly, the plant root system enhances the stability of soil body because the plants can root into the soil, and meanwhile, the ecological environment of the slope 51 is improved, and the water and soil loss is reduced.

In some embodiments, the plant layer 2 is square, and can be set to 1.5×1.5, the plant layer 2 is paved with an organic substrate bottom layer with the thickness of about 8cm, wherein the seed layer is about 2cm, a spray irrigation pipeline mechanism is assembled on the slope surface 51 so as to facilitate irrigation, and then a water locking material is paved on the upper layer of the plant layer 2, and the water locking material adopts a mode of small quantity and multiple spraying so as to enhance the water locking capability of the soil of the plant layer 2.

The water locking material is a green ecological environment-friendly material, can be compatible with surrounding natural environment while strengthening the water locking function of the side slope 5, and ensures that the probability of negatively affecting the growth process of plants is smaller. The material does not pollute soil or water sources, and does not damage the nearby animal, plant and microbial ecosystems. The water locking can improve the water and soil conservation capacity of the side slope 5.

The water-locking material is sprayed on the plant layer 2, and five layers of water are sprayed by adopting a small quantity of multiple spraying modes, so that the probability of water penetrating from the soil of the frame 13 into the slope 53 is reduced.

In some embodiments of the present application, the concentration of the water-locking material sprayed on the roof and the frame soil beams is a, the concentration of the water-locking material sprayed on the plant layer is b, a > b, so that the concentration of the water-locking material sprayed on the plant layer is lower, thereby accelerating plant growth, and the concentration of the water-locking material sprayed on the exposed frame soil beams is higher, which is beneficial to reducing rainwater penetration into the slope from the surface of the frame soil beams.

In some embodiments of the present application, the concentration of the water-locking material sprayed on the beams of the lattice 13 is 16%, and the concentration of the water-locking material sprayed on the plant layer 2 is 7% -12%, which is helpful for protecting the plant growth of the plant layer 2.

During construction, the mixture of water-blocking material was mechanically stirred for 5 minutes until a homogeneous milky liquid was formed, which was more homogeneous during spraying.

After the water-locking material is sprayed on the soil surface, the water-locking material can react with the water-absorbing hydroxyl groups on the soil surface to remove the water-absorbing groups of the soil. After the chemical reaction of the water-locking material, uniformly distributed nano structures are formed on the surface layer of the soil particles, so that an automatic water-locking surface is formed, the contact between soil and water drops is blocked, and the slope 53 has better water locking performance. The soil without adding the water-locking material is easy to collapse when absorbing water and does not form mud when meeting water, becomes super-hydrophobic soil without absorbing water, and the water can be suspended on the surface of the soil and flows downwards to be discharged into the drainage tank 4. Under the action of water tension, even if the soil surface has small cracks, water drops can not permeate into the slope 53, so that rainwater can be effectively reduced from permeating into the soil.

In some embodiments of the present application, the number of the lattices 13 is one or more, in one lattice 13, the concentration of the water locking material sprayed on the plant layer 2 is unique, in a plurality of lattices 13 arranged up and down, the lower the height of the lattice 13 is, the higher the concentration of the water locking material sprayed on the plant layer 2 is, and as the accumulated water of the upper lattice 13 is stored in the lower lattice 13, the higher the concentration of the water locking material in the lower lattice 13 is beneficial to locking water and reducing the infiltration of rainwater.

In some embodiments, the concentration of water-locking material sprayed in the lattice 13 is increased row by row from top to bottom.

The water locking material with the concentration of 8% is sprayed in the plant layer 2 of the first row of the frame 13 above, so that the initial infiltration speed of rainwater can be effectively slowed down. The experimental result shows that the rain infiltration rate under the concentration is 9.5%.

The plant layer 2 in the next row of the frame 13 is sprayed with water locking materials with the concentration of 9%, so that the infiltration rate of rainwater is further reduced to 7.5%, more rainwater is contained in the frame 13 at the height, and the infiltration of the rainwater can be effectively reduced;

the 12% concentration water locking material is sprayed in the plant layer 2 in the bottom-most frame 13, so that the rainwater infiltration rate is reduced to 5%, the rainwater of the plant layer 2 in the bottom-most frame 13 gathers much, and the high concentration water locking material has small rainwater infiltration reduction.

The design of the concentration gradient not only effectively controls the infiltration of rainwater, but also forms a durable water locking barrier, and the water holding capacity of soil is obviously enhanced. In practical application, different concentrations of the water locking material are adjusted according to different side slope 5 conditions so as to achieve the optimal soil and water conservation effect.

Referring to fig. 4, in some embodiments of the present application, the drain pipes 3 have a plurality of, at least two adjacent drain pipes 3 arranged up and down, the upper drain pipe 3 and the lower drain pipe 3 are not on the same longitudinal line, so that water discharged from the upper drain pipe 3 cannot flow down directly into the lower drain pipe 3, so that water cannot flow from the upper drain pipe 3 to the lower drain pipe 3 along a fixed route, and the flushing of soil in the frame 13 by rainwater flow during drainage is reduced, and the probability of rainwater infiltration into the interior of the slope 53 is reduced.

Referring to fig. 5, in some embodiments of the present application, the drain pipe 3 extends in the up-down direction and includes a first pipe section 31 having an upper water receiving port 311 and an upper opening for receiving water flow in the sash 13 located thereabove, and a second pipe section 32 connected below the first pipe section 31, the second pipe section 32 including a lower water discharge port 321, the lower water discharge port 321 for discharging water in the drain pipe 3.

The water enters the drain pipe 3 from the upper water receiving port 311, then flows through the first pipe section 31 and the second pipe section 32 in sequence, and finally flows out from the lower water discharging port 321 at the bottom of the second pipe section 32.

The upper water receiving opening 311 has an area larger than that of the lower water discharging opening 321 so that water above the water discharging pipe 3 more easily enters the water discharging pipe 3.

The cross-sectional area of the first pipe section 31 is not smaller than that of the second pipe section 32, so that the water flow speed is increased in the first pipe section 31 and the second pipe section 32 in sequence, the drainage speed is increased, the water is drained rapidly, and the probability that rainwater enters the interior of the slope 53 is reduced.

In some embodiments of the present application, the first pipe section 31 is a reducer with a gradually decreasing pipe diameter from top to bottom so that the flow rate of water flowing through the first pipe section 31 gradually increases, and the second pipe section 32 is a reducer with a gradually decreasing pipe diameter from top to bottom so that the flow rate of water flowing through the second pipe section 32 gradually increases so that the flow rate of water in the drain pipe 3 continuously increases to accelerate drainage, and the increasing amplitude of water flow is slower so as to reduce the impact of abrupt change of water flow rate on the pipe wall of the drain pipe 3, thereby prolonging the service life of the drain pipe 3.

The effect of the pipe diameter variation of the drain pipe 3 on the flow rate of water flow and the pressure to which the drain pipe 3 is subjected will be described in detail below:

since the first tube segment 31 and the second tube segment 32 have the same water flow rate, there are:

A₁v₁＝A₂v₂

Note that the first pipe section 31 of the drain pipe 3 has a cross-sectional area A1 and a water flow velocity v1, the second pipe section 32 of the drain pipe 3 has a cross-sectional area A2 and a gas flow velocity v2;

The cross section area A1 of the first pipe section 31 is larger than or equal to the cross section area A2 of the second pipe section 32, so that the water flow speed v1 of the first pipe section 31 is smaller than or equal to the water flow speed v2 of the second pipe section 32, and the water flows into the drain pipe 3 and is discharged in an accelerating way;

It is possible to obtain that since the first pipe section 31 and the second pipe section 32 are reducing pipes having gradually decreasing pipe diameters from top to bottom, the flow rate increases when water flows in the first pipe section 31 and also increases when water flows in the second pipe section 32.

According to bernoulli's principle:

Then:

Note that the pressure of the first pipe section 31 of the drain pipe 3 is P1, the pressure of the second pipe section 32 of the drain pipe 3 is P2;

The water pressure is smaller when the water flow rate is larger, and the water pressure is smaller, so that the first pipe section 31 and the second pipe section 32 are reducing pipes with the pipe diameters gradually reduced from top to bottom, and the flow rate of the water gradually increases when the water flows from top to bottom in the first pipe section 31 and the second pipe section 32, the water pressure is gradually reduced when the water flows from top to bottom in the first pipe section 31 and the second pipe section 32, namely, the water pressure is smaller at the position with the smaller cross section of the drain pipe 3, the drain pipe 3 is effectively protected, the probability of abrasion and blockage of the drain pipe 3 is reduced, the risk of pipe breakage or leakage caused by overlarge water pressure is reduced, the stability of the whole drainage system is enhanced, and the reliability and the service life of the drainage system are improved.

Referring to fig. 3, in some embodiments of the present application, the drainage channel 4 is bar-shaped, is positioned below the frame soil beam 1, and extends along the length direction of the cross beam 11, the drainage channel 4 is provided with water inlets 41 positioned below the drainage pipe 3, and the water inlet pipes and the drainage pipe 3 are arranged in one-to-one correspondence, so that water discharged from the drainage pipe 3 can directly enter the water inlets 41, thereby entering the drainage channel 4 to accelerate the drainage speed.

In some embodiments, the water draining groove 4 has a groove-shaped structure with two protruding sides and a middle recess, and because the water draining groove 4 is provided with a water draining outlet, water can directly enter the middle recess of the water draining groove 4 and can enter without passing through the protruding structures on the two sides.

In some embodiments of the present application, a plurality of drain pipes 3 are arranged on the same cross beam 11 at intervals, the furthest distance between two drain pipes 3 is D1, and the distance between the left end and the right end of the drain tank 4 is D2, wherein D2 is greater than or equal to D1, so that the drain pipes 3 can be arranged above the drain tank 4, and the situation that water in the drain pipes 3 cannot flow into the drain tank 4 can not occur.

In some embodiments of the present application, the slope 51 is further provided with a plurality of longitudinal grooves spaced apart from each other, and the distance between the longitudinal grooves is not greater than 20cm, so that the water on the slope 51 flows down the longitudinal grooves, thereby enabling the water in the lattice 13 to flow into the drain pipe 3 more quickly.

In some embodiments of the application, the width of the longitudinal grooves is any value between 3cm and 5cm, so that the longitudinal grooves do not affect the strength of the cross beams 11 and 12 of the frame soil beam 1 and can effectively drain water.

The construction and maintenance method of the slope protection structure 100 of the present application will be described in detail as follows:

S1, trimming a side slope 5, wherein the trimming comprises S10, S11, S12 and S13;

S10, brushing the slope 5 by matching machinery and manpower, brushing redundant soil on the slope 5 to a slope angle line from top to bottom, and performing no damage to surface soil of the slope 5, wherein if the surface soil is damaged, the surface soil needs to be recovered in time;

s11, if the soil of the side slope 5 is loose, the soil on the surface layer of the side slope 5 needs to be wetted by water in advance, so that the soil of the side slope 5 reaches the optimal compaction water content range;

S12, removing unstable stones or sundries of the side slope 5, removing all loose stones and dangerous stones, and if the protruding or recessed area of the side slope 5 is greater than 10cm, carrying out slope 51 treatment;

s13, excavating longitudinal grooves of 3-5 cm along the longitudinal direction at intervals of 20cm after cleaning the slope surface 51, and compacting soil of the slope surface 51 by using machinery;

S2, manufacturing a frame soil beam 1, wherein the frame soil beam comprises S21 and S22;

s21, measuring and paying off according to a design drawing, and determining the position of the frame soil beam 1;

S22, compacting soil on the slope surface 51 of the side slope 5 to form a frame soil beam 1, setting the section size of the soil beam to be 0.5m multiplied by 0.5m, and spraying a water locking material to form a second frame water locking layer on the soil of the secondary outer layer of the frame soil beam 1;

S3, preparing a plant layer 2, wherein the plant layer comprises S31 and S32;

S31, uniformly stirring planting soil, peat, coconut powder, wood powder, compound fertilizer, calcium magnesium phosphorus, adhesive and seed mixed nutritional soil according to a proportion by adopting a foreign soil grass spraying mode, spraying the mixed nutritional soil into the frame 13 with high pressure according to a designed thickness, enabling a spray head to be vertical to the slope 51 when spraying, forming a plant layer 2 at a distance of about 1.5m, and spraying the slope 51 from top to bottom in spraying construction;

S32, covering a film to maintain plants, spraying grass seeds, covering 30g/m2 of non-woven geotextile on a plant layer 2 on the same day, and fixing the non-woven geotextile with a fixed distance of 100cm by using U-shaped nails made of iron wires, wherein the non-woven geotextile is orderly sheared, and the overlapped part is properly folded for 1 cm-3 cm and fixed by adopting the iron wires;

S4, spraying water locking materials on sunny days or days before rainy seasons, wherein the water locking materials comprise S41 and S42;

s41, diluting the water-locking material to a construction concentration, if the average thickness of the hydrophobic soil layer is 10cm, the concentration of the water-locking material for spraying the plant layer 2 is 7% -12%, the concentration of the water-locking material for spraying the slope roof 52 and the frame soil beam 1 is 16%, and mechanically stirring the mixture for 5 minutes until uniform milky liquid is formed;

S42, spraying a water locking material, namely spraying the water locking material on the top of the frame soil beam 1, wherein the water locking material adopts a mode of spraying a small amount of water locking material for a plurality of times, and spraying five layers at intervals of 30 minutes each time;

Uncovering the non-woven geotextile when the water content of the side slope 5 soil is 10% -20% or the slope 51 soil is dry, spraying a water locking material on the plant layer 2, spraying the water locking material for 30min at intervals of a small amount of times, spraying five layers at intervals, and covering the woven geotextile;

Spraying a water locking material on the slope top 52, wherein the water locking material adopts a mode of spraying a small amount of water for multiple times, and spraying five layers at intervals of 30min each time, wherein the spraying width is 1-2 m;

S5, airing the water-locking material, namely naturally airing the surface of the 5 soil layers of the side slope for two to three days to form a hydrophobic soil layer, and playing a role in preventing seepage and locking water;

S6, spraying again, namely uniformly spraying a water locking material on the frame 13 again after the plants grow to 8-10 cm so as to further improve the water locking performance of the side slope 5, effectively prevent water loss, keep soil moist and provide favorable conditions for continuous growth of the plants;

And S7, maintenance management, namely periodically checking the conditions of the water locking materials and the frame soil beam 1 to ensure no damage, simultaneously carrying out maintenance and reseeding of plants to ensure healthy growth of vegetation, and periodically checking the integrity and the function of a drainage system to carry out necessary maintenance.

The foregoing is merely illustrative embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present utility model, and the utility model should be covered. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a slope protection structure that lock drainage combines together which characterized in that includes:

A frame soil beam disposed on a slope surface of a side slope, formed by compacting and uplifting soil of the side slope, the frame soil beam comprising:

A plurality of cross beams;

the longitudinal beams, the cross beams and the longitudinal beams are mutually crossed to form a plurality of frames;

The plant layer is arranged in the frame;

A frame soil beam water locking layer is formed by spraying a water locking material on the soil of the frame soil beam;

A plant layer water locking layer is formed by spraying a water locking material on soil of the plant layer;

And the drain pipe is arranged in the cross beam and at least partially extends along the up-down direction so as to be communicated with the upper adjacent sash and the lower adjacent sash, so that rainwater of the sash above the drain pipe is discharged along the drain pipe.

2. The slope protection structure with combined lock and drainage according to claim 1, wherein the slope comprises a slope top, and water locking materials are sprayed on soil of the slope top to form a slope top water locking layer.

3. The slope protection structure with combined water locking and draining function according to claim 2, wherein the concentration of the water locking material sprayed on the slope top and the frame soil beam is a, and the concentration of the water locking material sprayed on the plant layer is b, a > b.

4. A lock drainage combined slope protection structure according to claim 1 or 2 or 3, wherein the sash has one or more;

in one of the panes, the concentration of the water-locking material sprayed on the plant layer is unique;

In the multiple lattices arranged up and down, the lower the height of the lattice is, the higher the concentration of the water locking material sprayed on the plant layer is.

5. The slope protection structure with combined lock and drainage according to claim 1, wherein the drainage pipe has a plurality of drainage pipes, and in the drainage pipes arranged adjacently above and below, the drainage pipe above and the drainage pipe below are not on the same longitudinal line, so that water discharged from the drainage pipe above cannot flow down directly into the drainage pipe below.

6. The slope protection structure with combined lock and drainage according to claim 1 or 5, wherein the drainage pipe comprises:

A first pipe section having an upper water receiving port for receiving rainwater within the sash above the upper water receiving port;

a second pipe section connected below the first pipe section, the second pipe section including a lower drain port for draining water in the drain pipe;

The area of the upper water receiving port is larger than that of the lower water discharging port, and the cross section area of the first pipe section is not smaller than that of the second pipe section.

7. The slope protection structure combining water locking and draining according to claim 6, wherein the first pipe section is a reducer with a pipe diameter gradually reduced from top to bottom, and the second pipe section is a reducer with a pipe diameter gradually reduced from top to bottom.

8. The slope protection structure with combined lock and drainage according to claim 1 or 5, further comprising a drainage channel arranged at the bottom of the slope, wherein the drainage channel is communicated with the drainage pipe;

The drainage groove is strip-shaped, is positioned below the frame soil beam and extends along the length direction of the cross beam, is provided with a water inlet positioned below the drainage pipe so as to enable the drainage groove to be communicated with the drainage pipe, and water in the frame flows downwards through at least one drainage pipe and then flows into the drainage groove.

9. The slope protection structure combining water locking and draining according to claim 8, wherein a plurality of draining pipes are arranged on the same cross beam at intervals, the farthest distance between two adjacent draining pipes is D1, and the distance between the left end and the right end of each draining groove is D2, wherein D2 is more than or equal to D1.

10. The slope protection structure combining water locking and draining according to claim 1 or 5, wherein a plurality of longitudinal grooves are further formed in the slope at intervals, the distance between the longitudinal grooves is not greater than 20cm, and the width of the longitudinal grooves is any value between 3cm and 5cm, so that water flow on the slope flows downwards along the longitudinal grooves.