CN220928115U - L-shaped open rectangular drainage ditch - Google Patents

Abstract

The utility model provides an L-shaped open rectangular drainage ditch, which comprises a drainage ditch main body, wherein the drainage ditch main body is buried at the slope toe of a filling roadbed, the drainage ditch main body comprises two groups of supporting ditches, a water supply inflow channel is formed between the two groups of supporting ditches, the bottoms of the two groups of supporting ditches are provided with gravel filling layers, and the gravel filling layers are in contact with the bottom edges of the supporting ditches. One side of each of the two groups of supporting grooves is filled with a cohesive soil layer, the cohesive soil layer is attached to the supporting grooves, and gaps between the supporting grooves and the broken stone filling layer are filled in a sealing mode through the cohesive soil layer. The drainage ditch is used for draining water through the two groups of supporting ditches, when the water flow is large, the road boundary water permeates into the gravel filling layer and flows along the axis of the drainage ditch in the gravel filling layer and downwards so as to drain water, so that the drainage effect of the road boundary water filled in the section without natural drainage conditions in the plain area is improved, and the road boundary water flow is effectively prevented from overflowing the drainage ditch due to overlarge water flow.

Description

L-shaped open rectangular drainage ditch

Technical Field

The utility model relates to the technical field of roadbed drainage, in particular to an L-shaped open rectangular drainage ditch.

Background

The drainage ditch is a drainage structure arranged at the slope toe of the filled roadbed, is widely applied to the fields of road construction, urban and rural construction and the like, can prevent the influence of rainwater on the slope toe of the side slope after the rainwater is converged by the side slope, can collect and remove the running water of the road surface, the road shoulder and the side slope, and can guide the converged water to the drainage ditch outside the roadbed, the crop field and the residential field.

The utility model patent number 201521030706.9 provides a water draining structure for embankment in plain area, which comprises an embankment project built on a plain foundation, a slope foot wall is arranged on the outer side of the embankment project, a slope foot back pressure soil layer is filled between the slope foot wall and a slope of the embankment project, and water draining grooves are arranged on the slope foot back pressure soil layer and the top of the slope foot wall, so that the problem of difficult water draining of the water draining ditch of the embankment in plain area can be effectively solved.

However, in the drainage process, when the water quantity is too large, the water flow easily flows out of the upper surface of the drainage ditch to reduce the drainage effect, so that in view of the problem, an L-shaped open rectangular drainage ditch is provided to solve the problem.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model provides an L-shaped open rectangular drainage ditch, which aims to solve the technical problems that in the prior art, when the water quantity is too large in the drainage process of the traditional drainage ditch, water flows easily to overflow the upper surface of the drainage ditch to cause the reduction of the drainage effect.

In order to achieve the above purpose, the utility model provides a technical scheme that an L-shaped open rectangular drainage ditch comprises:

The drainage ditch main body is buried at the slope toe of the filling roadbed and comprises two groups of supporting ditches, and a channel for inflow of water in the roadbed is formed between the two groups of supporting ditches;

The broken stone filling layers are arranged at the bottoms of the two groups of supporting grooves and are in contact with the bottoms of the supporting grooves, and channels between the two groups of supporting grooves are positioned above the broken stone filling layers; and

The cohesive soil layer is provided with two groups, and is respectively filled at one side of the two groups of supporting grooves and is attached to the supporting grooves, and the cohesive soil layer is used for sealing and filling gaps between the supporting grooves and the broken stone filling layer.

In a preferred embodiment, the two sets of support grooves are L-shaped, and the two sets of support grooves are disposed facing away from each other.

In a preferred embodiment, the cross section of the crushed stone filling layer is in an inverted trapezoid shape, and the bottom edges of the inverted trapezoid are attached to the bottom edges of the two groups of supporting grooves and the bottom edges of the two groups of cohesive soil layers.

In a preferred embodiment, one side of the crushed stone filling layer is provided with a sand permeable layer which is communicated with the underground water storage space.

In a preferred embodiment, a waterproof geotextile is arranged in the filled roadbed, and one side of the viscous soil layer and the broken stone filling layer, which is close to one side of the filled roadbed, is in contact with the waterproof geotextile.

In a preferred embodiment, the support channel is a reinforced concrete material.

In a preferred embodiment, the support channels are formed by multi-segment stitching along the extension of the drain body.

Compared with the prior art, the utility model has the following beneficial effects:

After the drainage ditch is buried in the filling roadbed, water flow enters the drainage ditch main body through the channel between the two groups of supporting ditches, and drainage work is carried out through the two groups of supporting ditches and the broken stone filling layer. When the water flow is large, the road boundary water permeates into the gravel filling layer and flows along the axis of the drainage ditch in the gravel filling layer and downwards to drain, so that the drainage effect of filling the road boundary water of the roadbed under the condition that no natural drainage exists in the plain area is improved, and the situation that the water flow of the road boundary is too large and overflows out of the drainage ditch is effectively prevented. And the gaps between the supporting grooves and the filled roadbed are sealed through the viscous soil layers, so that the filled roadbed is prevented from being settled due to the fact that water flow permeates into the filled roadbed.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.

FIG. 1 is a schematic cross-sectional view of an L-shaped open rectangular drainage ditch provided by the utility model;

FIG. 2 is an enlarged schematic view of region a of FIG. 1;

Reference numerals:

1. A supporting groove; 2. filling roadbed; 3. waterproof geotextile; 4. a viscous soil layer; 5. a crushed stone filling layer; 6. and a sand permeable layer.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

Examples:

As shown in fig. 1 and 2, the utility model provides an L-shaped rectangular open drainage ditch, which comprises a drainage ditch main body, wherein the drainage ditch main body is buried at the slope toe of a filling roadbed 2, the drainage ditch main body comprises two groups of supporting ditches 1, and a channel for water inflow of a roadbed is formed between the two groups of supporting ditches 1. The bottoms of the two groups of supporting ditches 1 are provided with gravel filling layers 5 which are contacted with the bottom edges of the supporting ditches 1, and channels between the two groups of supporting ditches 1 are positioned above the gravel filling layers 5. The cross section of the broken stone filling layer 5 is in an inverted trapezoid shape, and the bottom edges of the inverted trapezoid are attached to the bottom edges of the two groups of supporting grooves 1 and the bottom edges of the two groups of cohesive soil layers 4.

After the drainage ditch is installed, water can be drained through the channels between the two groups of supporting ditches 1, when the water flow is overlarge, road boundary water permeates into the gravel filling layer 5 and flows downwards along the axis of the drainage ditch main body in the gravel filling layer 5 to drain, so that the drainage effect of the road boundary water under the condition that no natural drainage exists in a plain area is improved, road boundary water flow is effectively prevented from overflowing the drainage ditch main body to damage a road surface or a filled roadbed 2, one side of the two groups of supporting ditches 1 is filled with a viscous soil layer 4, and the viscous soil layer 4 seals and fills gaps between the supporting ditches 1 and the gravel filling layer 5, so that the collapse of the filled roadbed 2 caused by water flow permeating into the filled roadbed 2 is prevented. And setting up rubble filling layer 5 as the trapezium can increase the area of contact with the escape canal main part under the prerequisite of needing a small amount of rubble, increase stability and reliability after this escape canal buries simultaneously.

As shown in fig. 1, in the present embodiment, two sets of support grooves 1 are L-shaped, and the two sets of support grooves 1 are disposed apart. The contact area between the support groove 1 and the crushed stone filling layer 5 can be increased through the L-shaped support groove 1, water flow seepage is further prevented, meanwhile, the stability of the support groove 1 after burying can be increased, and the support groove 1 is not easy to displace and incline. The supporting groove 1 is made of reinforced concrete, so that the supporting groove is not easy to damage after long-time use, and meanwhile, the manufacturing cost is low.

In addition, in some embodiments, the supporting ditch 1 is formed by multi-section splicing along the extending direction of the main body of the drainage ditch, so that the supporting ditch 1 is conveniently prefabricated and then transferred, and meanwhile, the working efficiency of the supporting ditch 1 in installation is improved.

As shown in fig. 1, in the present embodiment, a sand permeable layer 6 is provided on one side of the gravel packing layer 5, and the sand permeable layer 6 communicates with the underground water storage space. The gravel filling layer 5 is in contact with the sand permeable layer 6, excessive water can flow to the sand permeable layer 6 and flow into the ground through the sand permeable layer 6, so that the water storage amount of the ground water can be ensured, and the amount of the ground water can be dynamically adjusted.

As shown in fig. 1, in the present embodiment, a waterproof geotextile 3 is provided in a fill subgrade 2, and a side of a cohesive soil layer 4 and a crushed stone filling layer 5 near the side of the fill subgrade 2 is in contact with the waterproof geotextile 3. Through the setting of waterproof geotechnical cloth 3, can further prevent rivers infiltration in the roadbed 2 of filling, effectual roadbed 2 of avoiding filling takes place to subside.

The utility model has the specific use mode and beneficial effects that:

After the drainage ditch is buried in the filling roadbed 2, water flow enters the drainage ditch main body through the channel between the two groups of supporting ditches 1, and drainage work is carried out through the two groups of supporting ditches 1 and the broken stone filling layer 5. When the water flow is large, the road boundary water permeates into the gravel filling layer 5 and flows along the axis of the main body of the drainage ditch in the gravel filling layer 5 and downwards so as to drain, so that the drainage effect of the road boundary water under the condition that no natural drainage exists in the plain area is improved, and the situation that the water flow of the road boundary is too large and overflows out of the drainage ditch is effectively prevented. And the gaps between the supporting grooves 1 and the filled roadbed 2 are sealed through the clay layers 4, so that water flow is prevented from penetrating into the filled roadbed 2 to cause sedimentation of the filled roadbed 2. Meanwhile, water can be introduced into the ground through the arrangement of the sand permeable layer 6, so that the water storage capacity of the ground water is ensured, and the amount of the ground water is dynamically adjusted.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments.

Claims (7)

1. An open rectangle escape canal of L type, its characterized in that includes:

The drainage ditch main body is buried at the slope toe of the filling roadbed (2), and comprises two groups of supporting ditches (1), and a channel for water inflow of a roadbed is formed between the two groups of supporting ditches (1);

The broken stone filling layers (5) are arranged at the bottoms of the two groups of supporting grooves (1) and are in contact with the bottom edges of the supporting grooves (1), and channels between the two groups of supporting grooves (1) are positioned above the broken stone filling layers (5); and

The viscous soil layers (4) are arranged in two groups, and are respectively filled at one sides of the two groups of supporting grooves (1) and are adhered to the supporting grooves, and the viscous soil layers (4) seal and fill gaps between the supporting grooves (1) and the crushed stone filling layers (5).

2. An L-shaped open rectangular drain according to claim 1, wherein: the two groups of supporting grooves (1) are L-shaped, and the two groups of supporting grooves (1) are arranged in a deviating mode.

3. An L-shaped open rectangular drain according to claim 1, wherein: the cross section of the broken stone filling layer (5) is in an inverted trapezoid shape, and the bottom edges of the inverted trapezoid are attached to the bottom edges of the two groups of supporting grooves (1) and the bottom edges of the two groups of viscous soil layers (4).

4. An L-shaped open rectangular drain according to claim 1, wherein: the gravel filling layer (5) one side is provided with sand permeable layer (6), sand permeable layer (6) and underground water storage space intercommunication.

5. An L-shaped open rectangular drain according to claim 1, wherein: waterproof geotechnical cloth (3) is arranged in the filling roadbed (2), and one side, close to one side of the filling roadbed (2), of the viscous soil layer (4) and the broken stone filling layer (5) is in contact with the waterproof geotechnical cloth (3).

6. An L-shaped open rectangular drain according to claim 1, wherein: the supporting groove (1) is made of reinforced concrete.

7. An L-shaped open rectangular drain according to claim 1, wherein: the supporting ditch (1) is formed by multi-section splicing along the extending direction of the drainage ditch main body.