Collecting system for surface water and infiltration water of mine dump
By designing a surface water and seepage collection system for mine drainage sites, and using technical means such as geotextiles and leakage holes, the problem of lack of surface runoff and underground runoff collection functions in the existing technology is solved, and efficient soil erosion monitoring and data collection are achieved.
Patent Information
- Application Number
- CN202421399619.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The existing runoff communities have complex structures and are mostly permanent structures. They lack designs that take into account both surface runoff and underground runoff collection functions, making it difficult to effectively monitor soil erosion in mine drainage sites.
A collection system for surface water and seepage water in mine excretion sites was designed. Geotextile was used as the main body, and an infiltration water collection pipe was installed in the middle, and a surface water collection pipe was installed on the outside to collect and divert water through leakage holes and diversion holes.
It realizes simultaneous collection of surface runoff and seepage water, increases the functionality of runoff communities, is suitable for unstable mine drainage sites, simplifies the construction and demolition process, reduces the workload of soil and water conservation research, and can accurately monitor water volume data and the content of harmful substances in the water.
Smart Images
Figure CN222716062U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine dump runoff collection, in particular to a collection system for surface water and seepage water in a mine dump. Background Art
[0002] The runoff collection system is an effective experimental facility for studying and monitoring soil erosion. The mine dump, also known as the waste rock dump, refers to the place where mining waste is concentratedly discharged. The waste generally includes humus topsoil, weathered rock and soil, hard rock and mixed rock and soil, etc. It is a giant artificial loose cushion. The surface water and infiltration water of the mine dump formed by rainfall are the main sources of soil erosion in the mining area. Monitoring the soil erosion characteristics of the mine dump is an important topic in the field of mine safety and environmental protection.
[0003] The existing runoff plot structure is relatively complex, mostly permanent, and lacks a design that takes into account both surface runoff and underground runoff collection functions. Therefore, it is urgent to design a runoff water collection system suitable for mine spoil dumps. Utility Model Content
[0004] The purpose of the utility model is to provide a system for collecting surface water and seepage water in mine spoil dumps, so as to solve the problem proposed in the above background technology that the existing runoff cell structure is relatively complex, most of them are permanent structures, and lack of a design that takes into account the collection functions of both surface runoff and underground runoff.
[0005] To achieve the above-mentioned purpose, the utility model provides a collection system for surface water and seepage water in mine spoil dumps, including a geotextile for collecting water, a seepage water collection pipe is installed in the middle of the geotextile, one end of the seepage water collection pipe is connected to a seepage water collection bucket, a surface water collection pipe is also arranged on the outside of the geotextile, one end of the surface water collection pipe is connected to a surface water collection bucket, a plurality of diversion holes are arranged on the outer wall of the surface water collection bucket, and the outer side of one of the diversion holes is connected to a diversion bucket through a diversion pipe.
[0006] Preferably, the geotextile is a square structure and is laid at the bottom of a V-shaped pit.
[0007] Preferably, the seepage water collection pipe is a PVC pipe with a diameter of 8-15 cm, and the pipe body of the seepage water collection pipe is drilled with uniform leakage holes by an electric drill, the spacing between the leakage holes is 4-8 cm, and the diameter of the leakage holes is 0.2-0.5 mm.
[0008] Preferably, a section of the seepage water collecting pipe with leakage holes is wrapped with 3-4 layers of sand-proof nets on the outside, the pore size of the sand-proof nets is 1-3mm, the sand-proof nets are made of plastic, and the sand-proof nets are fixed to the seepage water collecting pipe with straps.
[0009] Preferably, the seepage water collection pipe is placed in the middle of the geotextile, along the slope and in the direction of water flow, with the end with the leakage hole completely buried in the backfill soil, and 50-100 cm is reserved for the end without the leakage hole.
[0010] Preferably, the infiltration water collection barrel and the surface water collection barrel are made of plastic.
[0011] Preferably, the diversion holes have the same diameter and are arranged at equal intervals on the outer wall of the surface water collection barrel.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] The system is used in the collection system of surface water and seepage water in the mine dump. Through the use of geotextiles, surface runoff and seepage water can be collected at the same time, increasing the functionality of the runoff area. There are no fixed facilities, and all of them are made of light materials. They can be applied to unstable mine dumps and play a role in temporary monitoring. The construction and demolition are relatively simple, which greatly reduces the workload of soil and water conservation research. The monitored water volume data is accurate and can truly reflect the soil and water loss situation of the mine dump and the content of harmful substances in the water. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is one of the structural diagrams of the utility model;
[0015] Figure 2 This is the second structural schematic diagram of the present utility model.
[0016] The meaning of each number in the figure is:
[0017] 1. Geotextile; 2. Surface water collection pipe; 3. Diversion pipe; 4. Seepage hole; 5. Sand control net; 6. Seepage water collection pipe; 7. Seepage water collection barrel; 8. Surface water collection barrel; 9. Diversion hole; 10. Diversion barrel. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] The utility model provides a system for collecting surface water and seepage water in mine dumping sites, such as Figure 1-Figure 2As shown, it includes a geotextile 1 for collecting water bodies, a seepage water collection pipe 6 is installed in the middle of the geotextile 1, one end of the seepage water collection pipe 6 is connected to a seepage water collection bucket 7, a surface water collection pipe 2 is also arranged on the outside of the geotextile 1, one end of the surface water collection pipe 2 is connected to a surface water collection bucket 8, and a plurality of diversion holes 9 are arranged on the outer wall of the surface water collection bucket 8, and a diversion bucket 10 is connected to the outside of one of the diversion holes 9 through a diversion pipe 3.
[0020] In this embodiment, the geotextile 1 is the main part of the runoff collection system, which is used to collect seepage water. The size of the geotextile 1 is determined according to the size of the required runoff area. Generally, the runoff area is rectangular and has a size of 2m×3m. At this time, the size of the geotextile 1 is selected to be 4m×5m, ensuring that the geotextile 1 can cover the inside of the runoff area and extend on the soil ridge at the edge of the area. Select a suitable location on the slope of the mine dump where soil erosion is to be monitored to set up the runoff area, dig a pit along the slope, the deepest part of the pit is 1m, and the two sides are "V" shaped, lay the geotextile of the right size at the bottom of the pit, and flatten it along the pit wall, and the excess part is placed on the soil ridge of the area, and use part of the excavated soil to compact the sides of the geotextile 1 and fix it on the soil ridge.
[0021] Specifically, the seepage water collection pipe 6 is a PVC pipe with a diameter of 8-15 cm. The pipe body of the seepage water collection pipe 6 is drilled with uniform leakage holes 4 by an electric drill. The spacing between the leakage holes 4 is 4-8 cm, which is used to collect the seepage water that flows into the bottom layer of the geotextile 1. The diameter of the leakage holes 4 is 0.2-0.5 mm, depending on the diameter of the seepage water collection pipe 6 and actual needs.
[0022] Furthermore, a section of the seepage water collecting pipe 6 with a leakage hole 4 is wrapped with 3-4 layers of sand-proof net 5 on the outside, and the mesh diameter is 1-3mm. The sand-proof net 5 is made of plastic and is fixed to the seepage water collecting pipe 6 with a strap. One end of the seepage water collecting pipe 6 is blocked by a PVC plug to prevent mud and sand from entering, and the other end is connected to a seepage water collecting bucket 7 for collecting seepage water.
[0023] Furthermore, the seepage water collection pipe 6 is placed at the bottom end of the "V" shape in the middle of the bottom layer of the geotextile, along the slope and in the direction of the water flow. The end with the leakage hole 4 is completely buried in the backfill soil, and 50-100 cm is reserved for the end without the leakage hole 4. A hole is opened at a suitable position at the bottom of the geotextile 1, and the water receiving end of the seepage water collection pipe 6 is extended out, and the seepage water collection pipe 6 is tied to the holes of the geotextile 1 with a strap to prevent the seepage water from flowing out of the hole.
[0024] Furthermore, the excavated soil of the community is backfilled, the infiltration water collection pipe 6 is buried in the soil, the backfill soil is compacted, and the soil is leveled along the slope to ensure that all the backfill soil is in the geotextile 1 to prevent the infiltration water and runoff water from overflowing. A small drainage ditch is built at one end of the community, and the soil at the bottom of the ditch is compacted for installing the surface water collection pipe 2.
[0025] Furthermore, the water collecting end of the infiltration water collecting pipe 6 extends into the infiltration water collecting barrel 7 for collecting the infiltration water generated in the community. The collecting barrel is covered with a lid to prevent mud and rainwater from entering the interior.
[0026] Furthermore, the surface water collection pipe 2 is about 1-1.5m long and is fixed to the surface runoff drainage ditch. The outlet is parallel to the infiltration water collection pipe 6 and both are placed at the lower end of the slope of the runoff area. A hole is opened at a suitable position of the geotextile 1 according to the diameter of the surface water collection pipe 2, and the surface water collection pipe 2 passes through the hole. The surface water collection pipe 2 and the geotextile 1 are tied tightly with a strap to prevent surface runoff from overflowing from the holes in the geotextile 1.
[0027] Furthermore, the outlet end of the surface water collecting pipe 2 is extended into the surface water collecting barrel 8 for collecting surface runoff. The surface water collecting barrel 8 is fixed and covered with a lid to prevent mud and rainfall from entering the barrel.
[0028] Furthermore, the infiltration water collection barrel 7 and the surface water collection barrel 8 are made of plastic, and the size is determined according to needs. The volume of the collection barrel is determined according to the local single-point rainstorm rainfall and the area of the community to ensure that the collected water samples will not overflow, so as to ensure the accuracy of the runoff collection volume.
[0029] Furthermore, when the volume of a collection bucket cannot meet the needs of water sample collection, a plurality of diversion holes 9 with equal diameters are opened on the same horizontal plane at the upper end of the bucket wall, one of the diversion holes 9 is connected to a diversion tube 3 made of PVC material, and the diversion tube 3 is introduced into the diversion bucket 10, and the final runoff is: the water volume of the main collection bucket + the water volume of the diversion bucket × the number of diversion tubes. The diversion bucket 10 also needs to be covered with a lid to prevent rainfall from entering. The diversion holes 9 have the same diameter and are arranged at equal intervals on the outer wall of the surface water collection bucket 8.
[0030] Furthermore, the infiltration water collection barrel 7, the surface water collection barrel 8 and the diversion barrel 10 are equipped with a small rechargeable water sample extraction pump. The water sample can be extracted by simply placing the suction pipe into the barrel, which greatly reduces the workload of sampling.
[0031] When the utility model is used, the surface water and seepage water collection system for mine dumping ground is first selected at a suitable position on the slope of the mine dumping ground, and a soil pit with a certain depth is dug. The bottom of the soil pit is designed to be "V"-shaped to collect seepage water. A geotextile 1 is laid at the bottom of the soil pit to ensure that the geotextile 1 can completely cover the bottom of the soil pit and has a certain extension to be placed on the soil ridge of the community. A seepage water collection pipe 6 is placed in the center of the bottom layer of the geotextile 1, and evenly distributed leakage holes 4 are punched on the pipe body to collect seepage water. The outer side of the seepage water collection pipe 6 is wrapped with a sand-proof net 5 to prevent soil particles from entering the pipe. A surface water collection pipe 2 is set on one side of the soil pit and fixed in the surface runoff drainage ditch to collect surface runoff. After the soil pit is backfilled, a small drainage ditch is built at one end of the community drainage to ensure that the surface runoff can smoothly enter the surface water collection pipe 2.
[0032] When surface runoff is generated, the water flows through the surface water collection pipe 2 into the surface water collection barrel 8. At the same time, part of the water will penetrate into the soil under the geotextile 1, and then enter the pipe through the seepage hole 4 on the infiltration water collection pipe 6, and finally flow into the infiltration water collection barrel 7. If the amount of water in the surface water collection barrel 8 exceeds its capacity, the excess water will enter the diversion pipe 3 through the diversion hole 9, and finally flow into the diversion barrel 10, realizing the diversion and collection of water.
[0033] When the collected water samples need to be analyzed, the equipped small water sample extraction pump can be used, the extraction pipe is placed in the corresponding collection bucket, and the water sample is extracted for analysis.
[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A system for collecting surface water and seepage water in a mine dump, characterized in that: The invention comprises a geotextile (1) for collecting water bodies, wherein a seepage water collection pipe (6) is installed in the middle of the geotextile (1), one end of the seepage water collection pipe (6) is connected to a seepage water collection bucket (7), a surface water collection pipe (2) is also arranged on the outside of the geotextile (1), one end of the surface water collection pipe (2) is connected to a surface water collection bucket (8), and a plurality of diversion holes (9) are arranged on the outer wall of the surface water collection bucket (8), wherein the outer side of one of the diversion holes (9) is connected to a diversion bucket (10) via a diversion pipe (3).
2. The system for collecting surface water and seepage water in mine dumping sites according to claim 1 is characterized in that: The geotextile (1) is a square structure and is laid at the bottom of a V-shaped earth pit.
3. The system for collecting surface water and seepage water in mine dumping sites according to claim 1 is characterized in that: The seepage water collection pipe (6) is a PVC pipe with a diameter of 8-15 cm. The pipe body of the seepage water collection pipe (6) is drilled with uniform leakage holes (4) by an electric drill. The spacing between the leakage holes (4) is 4-8 cm, and the diameter of the leakage holes (4) is 0.2-0.5 mm.
4. The system for collecting surface water and seepage water in mine dumping sites according to claim 1 is characterized in that: The outer side of a section of the seepage water collection pipe (6) having the seepage hole (4) is wrapped with 3-4 layers of sand-proof nets (5), the pore diameter of the sand-proof nets (5) is 1-3 mm, the sand-proof nets (5) are made of plastic, and the sand-proof nets (5) are fixed to the seepage water collection pipe (6) using a binding strap.
5. The system for collecting surface water and seepage water in mine dumping sites according to claim 1 is characterized in that: The seepage water collection pipe (6) is placed in the middle of the geotextile (1), along the slope and in the direction of water flow, with the end with the seepage hole (4) completely buried in the backfill soil, and the end without the seepage hole (4) reserved for 50-100 cm.
6. The system for collecting surface water and seepage water in mine dumping sites according to claim 1 is characterized in that: The infiltration water collection bucket (7) and the surface water collection bucket (8) are made of plastic.
7. The system for collecting surface water and seepage water in mine dumping sites according to claim 1 is characterized in that: The diversion holes (9) have the same diameter and are arranged at equal intervals on the outer wall of the surface water collection barrel (8).