CN210917229U

CN210917229U - Platform-type rain and flood prevention and control system

Info

Publication number: CN210917229U
Application number: CN201921733710.XU
Authority: CN
Inventors: 郑泽铭; 马莉; 张倩
Original assignee: Lingnan Water Group Co ltd
Current assignee: Lingnan Water Group Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-07-03
Anticipated expiration: 2029-10-16

Abstract

The utility model provides a platform ground formula rain flood prevention and control system sets up on the flood control bank protection of bank both sides 10-20 meters within range, follows the bank direction sets up the platform ground that a plurality of sections height risees in succession to the bank protection direction, sets up gabion box with a net barricade at the front end of every platform ground. The utility model discloses when the rainwater is more, the surface water all can have some surface water to be detained at the water-storage layer when each step of flowing through, the velocity of flow that can effectual dispersion surface water alleviates the destruction of surface water to the river bank. When the river water rises, a part of the river water is retained in the water storage layer when the river water rises to a platform height, and the residual river water is effectively prevented from flowing into roads, fields, landscape areas and other areas.

Description

Platform-type rain and flood prevention and control system

Technical Field

The utility model relates to a technical field of river course flood prevention, concretely relates to platform ground formula rain flood prevention and control system.

Background

In the flood season, a large amount of rainwater is poured into the river channel and is larger than the bearing capacity of the original river channel. Causing the riverbed to be incapable of bearing, causing the redundant river water to overflow the riverway and flow into the fields, the greening and the hard road surface, causing damage to the landscape and the vegetation and bringing inconvenience to the tourists. The rainfall is big in rainy season, causes the surface runoff velocity of flow fast, causes the damage to the bank protection, brings a large amount of silt and debris into the river simultaneously, deposits in the riverbed, causes the river course to block up, and the river is excessive.

The existing flood prevention devices mainly comprise flood prevention bags, gates and the like, and the devices mainly intercept flood and do not have the function of dredging the flood. Therefore, a rain flood control system capable of dredging the flood according to the landform of the river bank is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem in the prior art, the utility model provides a platform ground formula rain flood prevention and control system not only can reduce rivers and to the washing away of soil, can also ooze into groundwater with the rain flood and utilize.

The utility model provides a following technical scheme:

a platform-type rain flood control system is arranged on flood control protection slopes at two sides of a river bank within a range of 10-20 meters, a plurality of sections of platform lands with continuously rising heights are arranged from the river bank direction to the protection slope direction, and a gabion net cage retaining wall is arranged at the front end of each platform land.

Further, the gabion net cage retaining wall is trapezoidal, the outside is wrapped by the low carbon steel wire, and the stone is filled inside.

Furthermore, the uppermost layer of the terrace is provided with a water storage layer, the water storage layer is used for planting the camptotheca acuminata, and the depth of the water storage layer is 50-80 mm.

Further, a covering layer is arranged on the lower layer of the water storage layer and is formed by paving barks, the covering layer is low in the middle and high on two sides, and the depth is 20-50 mm.

Furthermore, a water absorption layer is arranged on the lower layer of the covering layer, the water absorption layer is sandy soil, the depth of planting soil is selected according to planting of different types of plants, the depth of planting soil for planting herbaceous plants is 250-350mm, the depth of planting soil for planting shrubs is 500-900mm, and the depth of planting soil for planting trees is 1000-1200 mm.

Further, a water purification layer is arranged on the lower layer of the water absorption layer, the water purification layer is formed by mixing and filling ceramsite, volcanic rock and building waste residues in a ratio of 1:1:1, and the depth of the water purification layer is 600-1000 mm.

Further, a water seepage layer is arranged at the lower layer of the water purification layer, the water seepage layer is filled with 30-50mm of gravel, and the depth of the water seepage layer is 250-300 mm.

Furthermore, the water storage layer at the highest stage is provided with overflow pipes at concave corners between the retaining walls of the gabion net cage, the positions of the overflow pipes are higher than the upper edges of the retaining walls of the gabion net cage, and the overflow pipes are connected with urban rainwater wells.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

1. the utility model provides a platform ground formula rain flood prevention and control system can intercept the surface runoff when the rainwater is more, and the surface water flows to the river from the highest level step, all can have some surface water to be detained in the water-storage layer when flowing through each level step. Seeps from the aquifer to the permeable layer and is finally supplemented to the underground water. The first-level platform structure can effectively disperse the flow velocity of surface water and reduce the damage of the surface water to river banks.

2. The utility model provides a platform ground formula rain flood prevention and control system rises at the river, when needing the interception river overflow water, the river highly all has a part river to be detained at the water-storage layer for every rising platform ground. Seeps from the aquifer to the permeable layer and is finally supplemented to the underground water. The method effectively intercepts the flow of the residual river water out of the slope protection, and effectively prevents the residual river water from flowing into the road, the field, the landscape area and other areas.

Drawings

Fig. 1 is a schematic structural view of the platform-type rain flood control system of the present invention;

fig. 2 is a schematic view of the terrace type rain flood control system for intercepting surface runoff;

fig. 3 is a schematic view of the terrace type rain flood control system for intercepting river overflow river water;

fig. 4 is the structure schematic diagram of the retaining wall of the middle gabion net box of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the block diagrams and specific examples are set forth herein for purposes of explanation only and are not intended as limitations on the present invention.

Example 1

The utility model provides a platform ground formula rain flood prevention and control system sets up on the 10-20 meters flood control bank protection in bank both sides, as shown in fig. 1 to 4, sets up the platform ground that rises in succession to a plurality of sections height from the bank direction to the bank protection direction, sets up gabion box with a net barricade at the front end of every platform ground. Wherein, the gabion box barricade is trapezoidal, and the outside is wrapped up by the low carbon steel wire, and inside is packed the stone. The stone should be hard in texture and have a certain compressive strength. The stones in the gabion are matched in size, so that the trapezoidal appearance of the gabion is ensured.

The low-carbon steel wire has the characteristic of moderate deformation, and the whole structure can be automatically adjusted in a fine mode even if the low-carbon steel wire is unevenly sunk. Trapezoidal ecological gabion is as the facade retaining wall structure on each level terrace, and the effectual excessive that blocks soil, trapezoidal ecological gabion stable in structure moreover. The holes in the trapezoidal ecological gabion create conditions for water body flowing, and are beneficial to realizing natural exchange between water and soil.

The ladder-shaped gabion cage retaining wall is assembled in a large area and is not provided with structural seams. The adjacent net cages are all fastened by the binding wires of the woven gabions, have continuity, integrity and ductility which are difficult to replace by other materials, and compared with grouted stones and concrete structures, the net cage has good deformation performance for resisting uneven settlement of a foundation, and integrity damage can not be caused even if local damage is caused. And the shock resistance is good, and certain impact resistance is achieved.

The internal rock blocks of the trapezoidal ecological gabion mesh box retaining wall are constrained by the mesh box after being vibrated, cannot be broken and scattered, can be automatically adjusted to reach new balance, and are more unlikely to crack. Even if the stone blocks are displaced, the overall integrity cannot be damaged, and the deformed trapezoidal ecological gabion net cage can generate new balance. No crack or serious problem is generated, and flood impact can be effectively resisted.

Example 2

Preferably, as shown in figure 1, the uppermost layer of the terrace is provided with an aquifer, the aquifer is used for planting the camptotheca, and the depth of the aquifer is 50-80 mm. The device is used for collecting and storing surface runoff water and overflow river water, and plants planted on the layer can beautify the landscape of the river bank.

And a covering layer is arranged at the lower layer of the water storage layer, is formed by paving barks, has the depth of 20-50mm and is used for keeping the soil humidity. The cover layer is set to be in a shape with a low middle part and high two sides, so that the water storage capacity can be increased, the rainwater outflow time can be prolonged, and the effect of increasing surface runoff and the underwater seepage of an overflow river can be achieved. Meanwhile, the covering layer has certain protection and moisture preservation functions on soil, reduces the damage of water flow to the soil, provides a favorable growth environment for microorganisms and is favorable for degrading organic matters.

The lower floor on overburden sets up the layer that absorbs water, and the layer that absorbs water is sandy soil, selects the sandy soil that osmotic coefficient is big here, slows down the infiltration rate of rainwater and overflow river, purifies tentatively. The depth of the planting soil is selected according to the planting of different types of plants, the depth of the planting soil for planting herbaceous plants is 250-350mm, the depth of the planting soil for planting shrubs is 500-900mm, and the depth of the planting soil for planting trees is 1000-1200 mm.

The lower layer of the water absorption layer is provided with a water purification layer, the water purification layer is filled by mixing ceramsite, volcanic rock and building waste residues in a ratio of 1:1:1, and the depth of the water purification layer is 600-1000 mm. The water purifying agent has the advantages of small resistance to water, large surface area, strong adsorption capacity, stable water quality, effective water purification, and capability of adsorbing harmful bacteria in water and heavy metal ions such as chromium, arsenic and the like which influence organisms, even some residual chlorine in water.

The lower layer of the water purification layer is provided with a water seepage layer, the water seepage layer is filled by gravel with the thickness of 30-50mm, and the depth of the water seepage layer is 250-300 mm. Larger gaps can be formed among the gravels, and the gravel has a certain water storage function and is infiltrated, so that underground water is effectively supplemented.

An original soil leveling layer can be arranged below the water seepage layer to level the original soil. The flattening coefficient is between 85 and 93 percent.

In addition, at highest one-level platform ground the aquifer with the concave angle department between the gabion box with a net barricade sets up the warning pipe, the warning pipe sets up the upper edge that the position is higher than this level gabion box with a net barricade, and the warning pipe is connected with urban rainwater well. The overflow pipe drains the surplus river water which is not absorbed by the water storage layers of all levels in time. The overflow pipe is directly connected with the catch basin, and the catch basin drains away residual river water, so that the overflow water of the river water is effectively intercepted from flowing into fields, roads, landscape areas and other areas, and the ecological environment is prevented from being damaged.

When the rainwater is more, can intercept the surface runoff, the surface water flows to the river from the highest level step, all can have a part surface water to be detained in the aquifer when flowing through each level step. Seeps from the aquifer to the permeable layer and is finally supplemented to the underground water. The first-level platform structure can effectively disperse the flow velocity of surface water and reduce the damage of the surface water to river banks.

When the river water rises and overflow water of the river water needs to be intercepted, a part of the river water is retained in the water storage layer when the river water rises to one platform height. Seeps from the aquifer to the permeable layer and is finally supplemented to the underground water. The method effectively intercepts the flow of the residual river water out of the slope protection, and effectively prevents the residual river water from flowing into the road, the field, the landscape area and other areas.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A platform-type rain flood control system is arranged on flood control protection slopes in the range of 10-20 meters on two sides of a river bank, and is characterized in that a plurality of sections of platform lands with continuously rising heights are arranged from the direction of the river bank to the direction of the protection slopes, and a gabion net cage retaining wall is arranged at the front end of each platform land.

2. The platform-type rain flood prevention and control system according to claim 1, wherein the gabion cage retaining wall is trapezoidal, is externally wrapped by low-carbon steel wires, and is internally filled with stones.

3. The terrace-type rain and flood control system according to claim 1, wherein a water storage layer is arranged on the uppermost layer of the terrace, the water storage layer is planted with the hydrophilous plants, and the depth of the water storage layer is 50-80 mm.

4. The platform-type rain flood control system according to claim 3, wherein a covering layer is arranged on the lower layer of the water storage layer, the covering layer is formed by paving bark, the covering layer is in a shape with a low middle part and high two sides, and the depth is 20-50 mm.

5. The platform-type rain flood control system according to claim 4, wherein a water absorbing layer is arranged at the lower layer of the covering layer, the water absorbing layer is sandy soil, the depth of planting soil is selected according to planting of different kinds of plants, the depth of planting soil for planting herbaceous plants is 350-mm, the depth of planting soil for planting shrubs is 900-mm, and the depth of planting soil for planting trees is 1200-mm.

6. The platform-type rainfall flood control system according to claim 5, wherein a water purification layer is arranged at the lower layer of the water absorption layer, the water purification layer is filled by mixing ceramsite, volcanic rock and building waste residues in a ratio of 1:1:1, and the depth of the water purification layer is 600-1000 mm.

7. The platform-type rain flood control system according to claim 6, wherein a water seepage layer is arranged at the lower layer of the clean water layer, the water seepage layer is filled with 30-50mm gravel, and the depth of the water seepage layer is 300 mm.

8. The platform-type rain flood prevention and control system according to claim 3, wherein an overflow pipe is arranged at a concave corner between the aquifer of the highest platform and the gabion cage retaining wall, the position of the overflow pipe is higher than the upper edge of the gabion cage retaining wall, and the overflow pipe is connected with a rainwater well in a city.