CN219315619U

CN219315619U - Water blocking and drainage structure for bottom of karst peak cluster depression

Info

Publication number: CN219315619U
Application number: CN202320296246.2U
Authority: CN
Inventors: 曹洋; 张成富; 蔡国俊; 张丽敏; 赵卫权
Original assignee: GUIZHOU INSTITUTE OF MOUNTAINOUS RESOURCE
Current assignee: GUIZHOU INSTITUTE OF MOUNTAINOUS RESOURCE
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-07-07
Anticipated expiration: 2033-02-23

Abstract

The utility model discloses a water blocking and drainage structure for the bottom of a karst peak cluster depression, and belongs to the technical field of environmental hydrologic monitoring; the water blocking ditch is arranged at the bottom of the peak cluster slope; the water blocking ditch is segmented into a plurality of water blocking units, and the structures of the water blocking units are the same; the water blocking unit comprises a channel; geotechnical reinforcement cloth is arranged on one side of the left and right corresponding slope surfaces of the channel, and a pair of seepage-proofing plates are arranged at the bottom of the channel; the end parts of the two seepage-proofing plates in the same water blocking unit are mutually close, and the mounting heights of the seepage-proofing plates gradually increase from the connected side to the outside; a drainage tube is also arranged at the position where the two seepage-proofing plates are close to each other; the main body part of drainage tube buries in soil, and the other end stretches into the cistern inside and sets up.

Description

Water blocking and drainage structure for bottom of karst peak cluster depression

Technical Field

The utility model relates to the technical field of environmental hydrologic monitoring, in particular to a water blocking and drainage structure for the bottom of a karst peak cluster depression.

Background

The karst depression is a landform formed by vertical circulation of karst water (which refers to running water in the karst region and comprises surface water and underground water) or collapse of underground cave, wherein the diameter of the depression structure with the periphery being sealed by karst peak forest is hundreds of meters or thousands of meters, and the bottom of the depression is often filled by thin-layer corrosion residual substances, and sometimes a water falling hole leads to the underground to play a role in water elimination; the research on karst peak cluster depressions mainly aims at researching the influence of hydrologic conditions on ecology; while peak-cluster depressions are typically surface runoffs including slopes and studies of the hydrologic conditions of bottom depressions; however, due to the specificity of the depression-like land topography, how to provide a scientific and reliable intercepting and drainage structure for the surface runoffs from the peripheral peak clusters of the depression is a main problem facing the current situation.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the utility model provides a water blocking drainage structure for karst peak cluster depression bottom to solve the current problem that can't provide effective scientific reliable to intercept drainage structure to the surface runoff from on the peripheral peak cluster of depression.

In order to solve the problems, the utility model provides the following technical scheme:

a water blocking and drainage structure for the bottom of a karst peak cluster depression; the water blocking ditch is arranged at the bottom of the peak cluster slope; the water blocking ditch is segmented into a plurality of water blocking units, and the structures of the water blocking units are the same; the water blocking unit comprises a channel; geotechnical reinforcement cloth is arranged on one side of the left and right corresponding slope surfaces of the channel, and a pair of seepage-proofing plates are arranged at the bottom of the channel; the end parts of the two seepage-proofing plates in the same water blocking unit are mutually close, and the mounting heights of the seepage-proofing plates gradually increase from the connected side to the outside; a drainage tube is also arranged at the position where the two seepage-proofing plates are close to each other; the main body part of drainage tube buries in soil, and the other end stretches into the cistern inside and sets up.

Preferably, the water blocking ditch is an annular ditch arranged around the same contour line of the depression.

Preferably, the cross-sectional shape of the channel is trapezoidal; and the inclined side is correspondingly arranged towards the peak slope surface, and the depth of the channel is not more than half of the depth of the reservoir.

Preferably, the geotechnical reinforcement cloth is detachably placed on the channel, and the seepage-proofing plate and the drainage tube are made of naturally degradable materials.

Preferably, the number of the water reservoirs is not less than one, and the size of each water reservoir is the same; the number of the water blocking units formed by the water blocking ditch sections is a multiple of the number of the water reservoirs.

Preferably, the drainage tube is obliquely arranged between the water blocking unit and the reservoir, one side of the drainage tube, which is close to the water blocking unit, is a high-point position, and a flowmeter is also arranged in the tube of the drainage tube.

The utility model has the beneficial effects that:

according to the utility model, the water blocking ditch is arranged at the bottom of the depression, after the water blocking ditch is divided into the plurality of water blocking units, the water blocking ditch can be converged to the drainage tube along the obliquely placed water blocking plate by using the water blocking plate arranged on the water blocking unit channel as the guide of runoff and precipitation, and then enters the reservoir through the drainage tube. Simultaneously, through setting up geotechnique's reinforcement cloth towards one side of karst peak cluster on the channel and reduce the volume of entering the soil in the channel, owing to prevention of seepage board self possesses prevention of seepage function, can reduce the infiltration loss of runoff on the channel to a certain extent, improve the water collecting effect of cistern. In addition, because special topography of peak cluster depression landform leads to moisture to flow away fast, leads to the agricultural water difficulty, this set of water blocking drainage structure that this system disclosed can effectively intercept down and store the surface runoff, can alleviate the agricultural water difficulty.

Drawings

FIG. 1 is a topographical view of a karst peak cluster depression depicted with contours in this embodiment;

FIG. 2 is a schematic diagram of the utility model in an embodiment;

FIG. 3 is a front cross-sectional view of a single water blocking unit in this embodiment;

figure 4 is a transverse cross-sectional view of the water barrier unit in this embodiment;

reference numerals illustrate: 1. a water blocking ditch 2, a water blocking unit 2A, a ditch 2B and geotechnical reinforcement cloth, 2C, an impermeable plate, 2D, a drainage tube, 3, a reservoir, 4 and a flowmeter.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and specific examples:

examples:

referring to fig. 1, the present embodiment provides a water blocking and draining structure for the bottom of a karst peak cluster depression; the water blocking ditch 1 is arranged at the bottom of the peak cluster slope; the water blocking ditch 1 is segmented into 4 water blocking units 2, and the structures of the water blocking units 2 are the same; the water blocking unit 2 comprises a channel 2A; geotechnical reinforcement cloth 2B is arranged at one side of the left and right corresponding slope surfaces of the channel 2A, and a pair of seepage-proofing plates 2C are arranged at the bottom of the channel 2A; the end parts of the two seepage-proofing plates 2C in the same water blocking unit 2 are mutually close, and the installation height of the seepage-proofing plates 2C gradually increases from the connected side outwards; a drainage tube 2D is also arranged at the position where the two seepage-proofing plates 2C are close to each other; the main body of the drainage tube 2D is buried in the soil, and the other end of the drainage tube extends into the reservoir 3 for setting. In this embodiment, it is contemplated that a plastic film may be capped or capped over the reservoir to flow out of the dredging inlet to prevent evaporation of water.

The water blocking ditch 1 is a rectangular annular ditch arranged around the same contour line of the depression.

The cross-sectional shape of the channel 2A is trapezoidal; and the inclined side thereof is disposed correspondingly toward the peak slope surface, and the depth of the channel 2A is not more than half the depth of the reservoir 3. The channel 2A of the trapezoid structure is to prevent the upper portion of the channel from being damaged.

Geotechnical reinforcement cloth 2B is detachably placed on the channel 2A, and the seepage-proofing plate 2C and the drainage tube 2D are made of naturally degradable materials. The application of the detachable geotechnical reinforcement cloth 2B, the degradable impermeable plate and the drainage tube is more convenient when the ecology of the backfill reduction peak cluster depression of the monitoring work is completed, and meanwhile, the geotechnical reinforcement cloth 2B can be anchored on the ground by considering the structures such as anchor rods and the like so as to prevent the geotechnical reinforcement cloth from being washed away under heavy rainfall.

The number of the water reservoirs 3 is 2, and the sizes of the water reservoirs 3 are the same; the specific size of the water storage tank is designed according to the flood discharge standard of the local rainfall, and the number of the water blocking units 2 formed by the water blocking ditches 1 in a segmented mode is a multiple of the number of the water storage tank. In the embodiment, the water blocking ditch is divided into 4 water blocking units, wherein every two water blocking units are connected to the reservoirs at corresponding positions through the water guide pipes 2D.

The draft tube 2D is obliquely installed between the water blocking unit 2 and the reservoir 3, one side thereof close to the water blocking unit 2 is a high point position, and a flowmeter 4 is also installed in the tube of the draft tube 2D.

When the device is used, all the equipment is only required to be installed according to the scheme in the illustration and the embodiment, and the rainwater falls to the depression position from the slope during precipitation, is converged into the water blocking ditch and then enters the reservoir through the drainage tube.

Claims

1. A block water drainage structure for karst peak cluster depression bottom, its characterized in that: the water blocking ditch (1) is arranged at the bottom of the peak cluster slope; the water blocking ditch (1) is segmented into a plurality of water blocking units (2), and the structures of the water blocking units (2) are the same; the water blocking unit (2) comprises a channel (2A); geotechnical reinforcement cloth (2B) is arranged at one side of the left and right corresponding slope surfaces of the channel (2A), and a pair of seepage-proofing plates (2C) are arranged at the bottom of the channel (2A); the end parts of two seepage-proofing plates (2C) in the same water blocking unit (2) are mutually close, and the installation height of the seepage-proofing plates (2C) gradually increases from the connected side to the outside; a drainage tube (2D) is also arranged at the position where the two seepage-proofing plates (2C) are close to each other; the main body part of the drainage tube (2D) is buried in the soil, and the other end of the drainage tube stretches into the reservoir (3) for setting.

2. The water-retaining and drainage structure for the bottoms of karst peak cluster depressions of claim 1, wherein: the water blocking ditch (1) is an annular ditch which is arranged around the same contour line of the depression.

3. The water-retaining and drainage structure for the bottoms of karst peak cluster depressions of claim 1, wherein: the cross section of the channel (2A) is trapezoid; and the inclined side is correspondingly arranged towards the peak slope surface, and the depth of the channel (2A) is not more than half of the depth of the reservoir (3).

4. The water-retaining and drainage structure for the bottoms of karst peak cluster depressions of claim 1, wherein: the geotechnical reinforcement cloth (2B) is detachably placed on the channel (2A), and the seepage-proofing plate (2C) and the drainage tube (2D) are made of naturally degradable materials.

5. The water-retaining and drainage structure for the bottoms of karst peak cluster depressions of claim 1, wherein: the number of the water reservoirs (3) is not less than one, and the sizes of the water reservoirs are the same; the number of the water blocking units (2) formed by sectioning the water blocking ditch (1) is a multiple of the number of the water reservoirs.

6. The water-retaining and drainage structure for the bottoms of karst peak cluster depressions of claim 1, wherein: the drainage tube (2D) is obliquely arranged between the water blocking unit (2) and the water reservoir (3), one side of the drainage tube, which is close to the water blocking unit (2), is a high-point position, and a flowmeter (4) is further arranged in the tube of the drainage tube (2D).