CN217053410U

CN217053410U - Water seepage and drainage structure for green belt at edge of urban road

Info

Publication number: CN217053410U
Application number: CN202220656584.8U
Authority: CN
Inventors: 李力; 王亚平; 赖雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-26
Anticipated expiration: 2032-03-24

Abstract

The utility model provides a town road limit portion greenbelt infiltration and drainage structures solves the unsatisfactory contradiction of infiltration and the unsatisfactory drainage of the existence of the greenbelt of current road limit portion. In the water seepage and drainage structure, a drain pipe and a pre-buried water seepage pipe are pre-buried in a slope, at least one horizontal retaining wall is arranged on the slope, a water collection cavity is arranged in the retaining wall, the water collection cavity receives rainwater on the surface of the slope through an opening on the upper side and is correspondingly communicated with the rainwater on the surface of the slope, and the lower end of the water collection cavity is connected to the pre-buried water seepage pipe through a seepage channel; set up the overflow mouth on the curb plate at this catchment cavity both ends, and the minimum point of this overflow mouth is higher than or equal to the open-ended low point, just the overflow mouth communicates pre-buried drain pipe. The utility model discloses a set up retaining wall and cut apart into a plurality of regions with the bank protection, improved the anti local ability of collapsing of bank protection. The drainage of non-ground runoff mode can be carried out fast in rainy season.

Description

Town road limit portion greenbelt infiltration and drainage structures

Technical Field

The utility model relates to a side slope greenbelt structural design technical field.

Background

Urban roads are located in suburbs and are mostly simple to green. Different from urban green belts, the edge green belts of urban roads are generally greened by spraying grass seeds directly on the basis of filling plain soil. The traditional greening mode has simple structure, but also has the problems of water and soil loss and local collapse.

The reason for this is that the local collapse of the site is caused by a problem of rain wash in rainy season, particularly heavy rainstorm season. In order to solve the problem, what adopt at high-grade highway section at present is slope protection brick or slope protection net, protects the afforestation bank protection, and concrete technique can refer to: CN202110368852.6 document introduces an anti-impact ecological slope protection brick, system and method of slope protection planting integration.

The existence of slope protection brick has caused the reduction of the afforestation face of side slope position, and slope protection brick itself occupies certain space, and if this slope protection brick does not adopt special fixed mode, also has the problem that the slope protection brick shifted, can cause the local of slope protection greenbelt to collapse equally.

That is, the slope protection brick structure still has the not smooth problem of drainage in the season of torrential rain.

The water seepage performance of the side slope green belt means that the water conservation capacity of the green soil is improved as much as possible in the drought season, namely, the utilization of rainwater is increased in the drought season, and the growth requirement of green plants is ensured.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a town road edge green belt infiltration and hydrophobic structure solves the unsatisfactory contradiction of infiltration and drainage that current road edge green belt exists.

The utility model provides a technical scheme that its technical problem adopted does:

the urban road edge green belt water seepage and drainage structure is characterized in that a water drainage pipe and a pre-buried water seepage pipe are pre-buried in the slope, at least one horizontal retaining wall is arranged on the slope, a water collection cavity is arranged in the retaining wall, the water collection cavity receives rainwater on the surface of the slope through an opening above the side of the water collection cavity and is correspondingly communicated with the water seepage pipe, and the lower end of the water collection cavity is connected to the pre-buried water seepage pipe through a seepage channel;

set up the overflow mouth on the curb plate at this catchment cavity both ends, and the minimum point of this overflow mouth is higher than or equal to the open-ended low point, just the overflow mouth communicates pre-buried drain pipe.

Further, retaining wall includes a retaining wall, No. two retaining walls and No. three retaining walls that top-down set up, and wherein, a retaining wall and No. two retaining wall structures are the same to set up at the middle part on slope, No. three retaining walls set up at the slope bottom, cut apart into the triplex with slope top-down.

Furthermore, the third retaining wall is formed by stacking stones and concrete.

Furthermore, the initiating terminal of pre-buried drain pipe is located retaining wall position No. one, and the terminal point is located retaining wall position No. three.

Furthermore, No. one retaining wall, No. two retaining walls adopt special prefabricated section to pile up.

The embedded water seepage pipe adopts a small-caliber PVC pipeline, such as a phi 20PVC pipe, dense seepage holes are formed in the embedded water seepage pipe in a micropore processing mode, rainwater and the like in the embedded water seepage pipe can seep into slope soil through the seepage holes, and the two ends of the embedded water seepage pipe in the horizontal direction are blocked, such as hot-melt welding blocking.

Further, the precast block includes a standard precast block and end precast blocks, wherein the end precast blocks are located at both ends of the standard precast block.

Furthermore, the pre-buried drain pipe adopts a PE pipe or a PVC pipe, is pre-buried in a shallow soil pre-buried mode, and the adapter pipe communicated with the overflow port and the pre-buried drain pipe are of the same specification, so that the purpose of rapid drainage is achieved.

Furthermore, a curb is arranged at the lap joint of the slope top pavement, and drain holes are formed in the curb at certain intervals.

Furthermore, an inclined PVC pipe is arranged in the seepage channel, and the PVC pipe is externally connected with a pre-buried seepage pipe.

Further, the embedded water drainage pipe is obliquely embedded in the slope along the slope.

The utility model has the advantages that:

the utility model discloses a set up retaining wall and cut apart into a plurality of regions with the bank protection, improved the anti local ability of collapsing of bank protection. And the dual functions of the pre-buried drain pipe and the pre-buried water seepage pipe are combined, so that sufficient seepage can be performed in non-rainy seasons, and the utilization rate of rainwater is improved. The non-ground runoff drainage method can be rapidly carried out in rainy seasons, the contradiction between unsatisfactory water seepage and unsatisfactory drainage existing in the edge green belts of the existing roads is well solved, and the structure and principle of the road edge green belt are understood in detail by combining the embodiment of the specification in the following parts.

Drawings

Fig. 1 the utility model discloses the section view of well bank protection.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a plan view of the revetment.

Fig. 4 is a perspective view of a standard preform block.

Fig. 5 is a perspective view of an end preform block.

In the figure:

10 road surfaces, 11 kerbs,

20 a river or a river channel, and,

30, greening the plants, and a method for planting the plants,

40 pre-burying a drain pipe in the water storage tank,

50, pre-burying a water seepage pipe,

no. 61 first retaining wall, No. 62 second retaining wall, No. 63 third retaining wall,

71 water collecting cavity, 72 seepage channel, 73 opening, 74 side plate and 75 overflow port.

Detailed Description

The green belt water seepage and drainage structure at the edge of the town road is used for slope fixing and greening of the slope.

The present embodiment is based on town general road expansion. It is especially suitable for large slope (so-called large slope to slope with slope greater than 30 degrees). In a large inclination angle revetment, the risk of collapse under rain erosion is greater.

The edge green belt of town road generally exists in the form of slope, its top is road surface 10, the bottom is river course or river ditch 20, plant the green plant 30 on the slope and beautify and bank protection.

This implementation process is understood to the accompanying drawings 1-5 of the combined description, and this embodiment structure carries out reasonable dredging to bank protection surface runoff through pre-buried drain pipe 40, pre-buried infiltration pipe 50, bank protection retaining wall in the bank protection to reach the effect of drainage and drainage. Wherein the pre-buried drain pipe 40 is buried in the slope protection along the slope protection slope. Slope protection retaining wall includes retaining wall 61, No. two retaining walls 62 and No. three retaining walls 63, and wherein, a retaining wall is the same with No. two retaining wall structures to set up at the middle part of bank protection, cut apart into the triplex with bank protection top-down, this triplex general case down designs into equidistant segmentation, also can be according to actual conditions non-equidistant setting. The retaining wall number three 63 is provided at the slope bottom, that is, the boundary between the slope protection plants and the river bottom, and is conventionally provided, for example, by stacking stones and concrete, and the construction process thereof will not be described in detail in this embodiment.

At the top of the slope, where the roads overlap, there is a kerb 11, which is part of the road pavement work and will not be described in detail. Conventionally, the kerb is provided with a drainage hole at a certain designed distance, and the drainage hole is formed by presetting in the kerb, which will not be described in detail.

The first retaining wall 61 and the second retaining wall 62 are built by special precast blocks, specifically, a base is firstly poured in the protection slope, the base is of a reinforced concrete structure, and the precast blocks are installed on the base.

The precast block in this embodiment is molded by a special mold. The whole precast block 70 is in a profile with a trapezoidal section, and a water collecting cavity 71 is formed in the precast block along the length direction and is communicated with the outside through an opening at the upper side. When the vertical installation, the opening faces to the height direction of the revetment. The opening 73 serves to receive rain, irrigation water, etc. from diagonally above the precast block. The lower part of the precast block is provided with a seepage channel 72, and an inclined PVC pipe is arranged in the seepage channel and is connected to the embedded seepage pipe 50. The number of the seepage channels is not suitable to be large, and one seepage channel is generally arranged at intervals of several meters, for example, one seepage channel is arranged at intervals of five meters.

The pre-buried water seepage pipe 50 is a small-diameter PVC pipe, for example, a phi 20PVC pipe, and dense seepage holes are formed on the pre-buried water seepage pipe by processing micro-holes, so that rainwater and the like in the pre-buried water seepage pipe can seep into slope protection soil through the seepage holes.

The above-mentioned embedded water seepage pipes 50 are generally arranged horizontally, and require a levelness (height difference between a high point and a low point) of not less than 1 mm, and the embedded water seepage pipes are plugged at both ends in the horizontal direction, for example, by thermal welding.

The prefabricated block is divided into two specifications, including a standard prefabricated block (refer to fig. 4) and an end prefabricated block (refer to fig. 5), wherein a water collecting cavity in the standard prefabricated block is designed to be through, and a seepage channel is arranged at a proper position. The end prefabricated block is provided with a side plate 74 on one side on the basis of the standard prefabricated block, the side plate is used for transversely plugging the water collecting cavity, an overflow port 75 is arranged on the side plate, the design position, particularly the height, of the overflow port is specially designed, specifically, the lowest point of the overflow port is basically higher than or equal to the low point of an opening above the side of the water collecting cavity, namely, when the water collecting in the water collecting cavity exceeds the position, the overflow phenomenon can occur. The outer side of the overflow port is correspondingly provided with a pre-buried drain pipe 40.

Pre-buried drain pipe 40, top-down sets up, and wherein the initiating terminal is located retaining wall position No. one, and the terminal point is located retaining wall position No. three. The pre-buried drain pipe is made of PE pipes or PVC pipes and is pre-buried in a shallow soil pre-buried mode. PVC short pipes are arranged between the embedded drain pipe and the overflow port for communication, and an overflow water channel is formed.

The pre-buried drain pipe adopts the water pipe of phi 200 specification, and foretell intercommunication overflow mouth adapter pipe and this drain pipe adopt the same specification can, realize the purpose of quick drainage.

This drainage process no longer carries out the surface runoff, can effectually avoid the side slope to collapse.

The structural advantages and the specific water seepage principle and the water drainage principle of the embodiment are explained as follows:

the water seepage principle is as follows: in dry seasons or non-rainy seasons, because the rainwater is less or the rainfall is less, at this moment, the road surface department forms the slight bottom surface runoff to collect to the roadside greenbelt, collect the in-process, give green planting on one side, unnecessary water then collects in retaining wall department, specifically speaking, unnecessary water crosses foretell prefabricated section opening inside the cavity that catchments, and collects. Because the precipitation is less, the collected water is not enough to fill the water collecting cavity, namely, the overflow phenomenon can not occur. The collected water enters the pre-embedded water seepage pipe and seeps into the green belt area of the next step area through the water seepage micropores, and the seepage occurs in the soil layer, so that the evaporation effect can be reduced, and the water utilization rate is high. It should be noted that, in this case, a large amount of rainwater is not discharged from the pre-buried drain pipe.

The drainage principle is as follows: when rainy season or heavy rain take place, the rainwater can be along the bank protection a large amount of purgations down, and the rainwater can collect in retaining wall department this moment, and most water then can be in the overflow mouth overflow entering pre-buried drain pipe at both ends, because pre-buried drain pipe has high difference in height, intraductal rainwater can be quick downward flow under the action of gravity to finally flow to the river course river bottom of minimum. During this time, a small amount of rain water continues to leak through the leak path.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should be able to make various modifications and improvements to the present invention without departing from the spirit of the present invention.

Claims

1. A water seepage and drainage structure of a green belt at the edge of a town road comprises a road surface (10), a slope and a river channel (20) from top to bottom, and green plants (30) are planted on the slope, and is characterized in that a drain pipe (40) and a pre-embedded water seepage pipe (50) are pre-embedded in the slope, at least one horizontal retaining wall is arranged on the slope, a water collecting cavity (71) is arranged in the retaining wall, the water collecting cavity receives rainwater on the surface of the slope through an opening at the upper side and is correspondingly communicated with the rainwater on the surface of the slope, and the lower end of the water collecting cavity is connected to the pre-embedded water seepage pipe (50) through a seepage channel (72); the lateral plates at the two ends of the water collecting cavity are provided with overflow ports (75), the lowest point of each overflow port is higher than or equal to the lowest point of the corresponding opening, and the overflow ports are communicated with the embedded drain pipes.

2. The edge green belt water seepage and drainage structure of town roads according to claim 1, wherein said retaining wall comprises a first retaining wall (61), a second retaining wall (62) and a third retaining wall (63) arranged from top to bottom, wherein the first retaining wall and the second retaining wall are identical in structure, and the slope is divided into three parts from top to bottom.

3. The edge green belt water seepage and drainage structure of town roads as claimed in claim 2, wherein said retaining wall No. one (61) and retaining wall No. two (62) are made of prefabricated blocks.

4. The water seepage and drainage structure for the edge green belt of the town road as claimed in claim 3, wherein the pre-buried drain pipe is embedded in the slope along the slope in an inclined manner.

5. The edge green belt water seepage and drainage structure of town roads as claimed in claim 4, wherein the pre-buried drain pipe has a starting end located at retaining wall number one and a finishing end located at retaining wall number three.

6. The water seepage and drainage structure for the edge green belt of the town road as claimed in claim 1, wherein the pre-buried drain pipe is a PE pipe or a PVC pipe, and the adapter pipe communicating with the overflow port and the pre-buried drain pipe are of the same specification.

7. The water seepage and drainage structure for the edge green belt of town roads as recited in claim 1, wherein a curb is provided at the top of the slope at the overlapping area of the road surface, and the curb is provided with drainage holes at intervals.

8. The water seepage and drainage structure for the edge green belt of the town road as claimed in claim 1, wherein an inclined PVC pipe is arranged in the seepage passage, and the PVC pipe is externally connected with a pre-buried seepage pipe.