CN211576668U - Fixed point sampling structure of groundwater - Google Patents
Fixed point sampling structure of groundwater Download PDFInfo
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- CN211576668U CN211576668U CN202020174169.XU CN202020174169U CN211576668U CN 211576668 U CN211576668 U CN 211576668U CN 202020174169 U CN202020174169 U CN 202020174169U CN 211576668 U CN211576668 U CN 211576668U
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- hole
- ground
- cover
- sampling structure
- ground hole
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Abstract
The utility model relates to an environmental detection technical field specifically discloses a fixed point sample structure of groundwater, include the ground hole that vertical brill was established in soil, both ends open-ended hollow tube, its characterized in that have been arranged with the core in the ground hole: the hole cover is arranged at the hole opening of the ground hole and above the hollow pipe, and a convex part placed in the ground hole extends downwards from the inner cover surface of the hole cover. The utility model discloses simple structure, through arranging of handhole door and the removal restraint of convex part to the handhole door, can play the effect of effective protection sampling point like this, make things convenient for the reliable sample of measurement personnel.
Description
Technical Field
The utility model relates to an environmental detection technical field, concretely relates to fixed point sampling structure of groundwater.
Background
Monitoring points are arranged according to the current monitoring situation of the groundwater environment of a construction project, influence of the groundwater environment is considered to track the monitoring points, and problems can be found and measures can be taken conveniently through periodic sampling. In the prior art, a hollow pipe is preset at a fixed-point sampling position of a monitoring point, and the lower end of the hollow pipe reaches a specified depth, so that fixed-point sampling is convenient. However, in the prior art, the upper end of the hollow tube is usually covered by an iron sheet, so that the hollow tube is easily damaged, if the hollow tube is trampled, the hollow tube is also easily buried after the iron sheet is displaced, and these problems basically cause the change of the soil structure around the hollow tube, which inevitably causes the damage of the hollow tube, and causes inconvenience to subsequent sampling, and in addition, the deviation of the sampling position also inevitably affects the comparison of the detection results. Therefore, ensuring the stability of the structure at the sampling position is an important guarantee for effective sampling.
Disclosure of Invention
The utility model aims at providing a stable in structure, use convenient fixed point sampling structure of surface water.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a fixed point sampling structure of groundwater, includes the ground hole of establishing of vertical brill in soil, and the downthehole hollow tube of both ends open-ended has been arranged with the core to the ground, its characterized in that: the hole cover is arranged at the hole opening of the ground hole and above the hollow pipe, and a convex part placed in the ground hole extends downwards from the inner cover surface of the hole cover.
The beneficial effect that adopts above-mentioned technical scheme to produce lies in: the hole cover is arranged at the fixed-point sampling position of the underground water, so that sundries such as soil, stones and the like around can be prevented from falling into the underground hole, the influence of the external environment on the hollow pipe in the underground hole is reduced, and the hollow pipe is protected; the convex part structure on the inner cover surface of the hole cover can restrain the position of the hole cover and prevent the hole cover from moving.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
A fixed-point sampling structure of underground water is shown in figure 1, and comprises a ground hole 110 vertically drilled in soil 100, a hollow pipe 200 with two open ends is arranged in the ground hole 110 in a concentric manner, a hole cover 300 is arranged at the hole of the ground hole 110 and above the hollow pipe 200 in a covering manner, a convex part placed in the ground hole 110 extends downwards from the inner cover surface of the hole cover 300, preferably, the convex part is an annular bulge 310 formed by extending the inner cover surface of the hole cover 300 downwards in the circumferential direction, and the outer circumferential surface of the annular bulge 310 is attached to the inner wall of the ground hole 110. The hole cover 300 is arranged at the fixed-point sampling position of the underground water, so that impurities such as soil, stones and the like around can be prevented from falling into the ground hole 110, the influence of the external environment on the hollow pipe 200 in the ground hole 110 is reduced, and the hollow pipe 200 is protected. The structure of the annular bulge 310 on the inner cover surface of the hole cover 300 can play a role in restricting the position of the hole cover 300, so that the hole cover 300 is prevented from moving, only when a sampler is needed to take surface water, a detection person takes the hole cover 300 away from the hole cover 300 at the ground hole 110, then the water pumping pipe of the sampler is put into the hollow pipe to detect and sample, and the hole cover 300 is covered after the sampling is completed, so that the device is very convenient.
Preferably, the ground hole 110 is divided into two sections, the inner diameter of the upper section of the ground hole 110 is larger, the inner diameter of the lower section of the ground hole 110 is smaller, and the inner diameter of the lower section of the ground hole 110 is matched with the outer diameter of the hollow tube 200; concrete 400 is poured into the upper section of the ground hole 110, and the upper part of the hollow tube 200 is fixed by the poured concrete 400. As shown in fig. 1, the lower part of the hollow pipe 200 is fitted into the lower section hole of the ground hole, the upper section of the ground hole is similar to the counter bore of the ground surface, and concrete 400 is poured into the counter bore, so as to restrain and fix the position of the hollow pipe 200. Preferably, the casting height of the concrete 400 is 0.2-1.0 m.
Preferably, the hole cover 300 includes a cover plate covering the opening end surface of the ground hole 110, and the peripheral outer plate surface 320 of the cover plate is arc-shaped, and the peripheral outer plate surface 320 gradually approaches the ground surface. As shown in fig. 1, the circumferential boundary of the cover plate of the hole cover 300 is pointed at two ends, and the circumferential boundary of the cover plate is thinner and is relatively attached to the ground surface, so that the displacement caused by kicking the hole cover 300 due to external factors can be further prevented.
Specifically, as shown in fig. 1, the annular protrusion extends downward from the middle of the inner cover surface of the hole cover in the circumferential direction, the inner diameter of the annular protrusion 310 is larger than the outer diameter of the hollow tube 200, and the upper end nozzle of the hollow tube 200 is located between the orifice of the ground hole 110 and the upper end surface of the concrete 400, so that the upper end nozzle of the hollow tube 200 is suspended at the orifice of the ground hole 110, and is free from being squeezed and blocked by external soil, thereby facilitating subsequent rapid acquisition of groundwater for detection. Preferably, the height of the hollow pipe 200 above the upper surface of the concrete 400 is 8-15 cm.
Claims (10)
1. A fixed point sampling structure of groundwater, includes ground hole (110) of vertical drilling in soil (100), and the concentric arrangement has both ends open-ended hollow tube (200) in ground hole (110), its characterized in that: the hole cover (300) is covered above the hollow pipe (200) at the hole of the ground hole (110), and a convex part placed in the ground hole (110) extends downwards from the inner cover surface of the hole cover (300).
2. A ground water spot sampling structure according to claim 1, wherein: the convex part is an annular bulge (310) formed by extending the inner cover surface of the hole cover (300) downwards in the circumferential direction, and the outer circumferential surface of the annular bulge (310) is attached to the inner wall of the ground hole (110).
3. A ground water spot sampling structure according to claim 2, wherein: the ground hole (110) is divided into two sections, the inner diameter of the upper section of the ground hole (110) is large, the inner diameter of the lower section of the ground hole (110) is small, and the inner diameter of the lower section of the ground hole (110) is matched with the outer diameter of the hollow pipe (200).
4. A ground water spot sampling structure according to claim 3, wherein: concrete (400) is poured into the upper section of the ground hole (110), and the upper part of the hollow pipe (200) is fixed through the poured concrete (400).
5. A ground water spot sampling structure according to claim 4, wherein: the hole cover (300) comprises a cover plate which is covered on the end face of the opening of the ground hole (110), the outer plate surface (320) at the periphery of the cover plate is arc-shaped, and the outer plate surface (320) at the periphery of the cover plate gradually approaches to the ground surface.
6. A ground water spot sampling structure according to claim 5, wherein: the annular bulge (310) extends downwards from the middle part of the inner cover surface of the hole cover (300) in the circumferential direction.
7. A ground water spot sampling structure according to claim 6, wherein: the inner diameter of the annular projection (310) is larger than the outer diameter of the hollow tube (200).
8. A ground water spot sampling structure according to claim 7, wherein: the upper end nozzle of the hollow pipe (200) is positioned between the opening of the ground hole (110) and the upper end surface of the concrete (400).
9. A fixed-point sampling structure of groundwater according to claim 4 or 8, wherein: the pouring height of the concrete (400) is 0.2-1.0 m.
10. A ground water spot sampling structure according to claim 9, wherein: the height of the hollow pipe (200) higher than the upper surface of the concrete (400) is 8-15 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020174169.XU CN211576668U (en) | 2020-02-15 | 2020-02-15 | Fixed point sampling structure of groundwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020174169.XU CN211576668U (en) | 2020-02-15 | 2020-02-15 | Fixed point sampling structure of groundwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211576668U true CN211576668U (en) | 2020-09-25 |
Family
ID=72525645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020174169.XU Expired - Fee Related CN211576668U (en) | 2020-02-15 | 2020-02-15 | Fixed point sampling structure of groundwater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211576668U (en) |
-
2020
- 2020-02-15 CN CN202020174169.XU patent/CN211576668U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 Termination date: 20210215 |