CN204728299U - A kind of device preventing surface water from oozing under water level pipe outer void - Google Patents
A kind of device preventing surface water from oozing under water level pipe outer void Download PDFInfo
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- CN204728299U CN204728299U CN201520437324.1U CN201520437324U CN204728299U CN 204728299 U CN204728299 U CN 204728299U CN 201520437324 U CN201520437324 U CN 201520437324U CN 204728299 U CN204728299 U CN 204728299U
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- water level
- level pipe
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- tube
- pipe
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Abstract
The device preventing surface water from oozing under water level pipe outer void, comprises water level pipe and outer tube.After water level pipe has been buried in boring underground, in boring, backfill is to a little higher than earth's surface, after backfill self-compaction, outer tube is enclosed within water level pipe, and is pressed downward to by outer tube in the backfill in boring.Due to the crowding-in effect of outer tube, a part of backfill to be filled between water level pipe and outer tube and compacted, and the backfill outside outer tube also can be compacted, can prevent surface water from oozing under water level pipe outer void.Outer tube can protect water level pipe to exempt from destruction simultaneously.The utility model is simple and reliable, can there is accuracy and the reliability of underground water level measurement when surface water around guaranteed water level pipe.
Description
Technical field
The utility model belongs to geotechnical engineering monitoring device field, particularly relates to a kind of device preventing surface water from oozing under water level pipe outer void.
Background technology
In civil engineering monitoring field, groundwater level is very important monitoring project, directly affects engineering safety or Foundation Treatment Effect.In Practical Project, water level pipe is buried in the earth by the general boring method that adopts, and then boring backfilled, follow-up direct limnimeter is measured the groundwater level in water level pipe.
When there is surface water around water level pipe, ooze under surface water and will affect groundwater level undoubtedly.When vacuum preloading basement process district carries out film overlying water, the above portions in the water level pipe earth's surface around stabilization zone will inevitably flood by tunicle overlying water, and surface water will ooze and affect groundwater level under water level pipe outer void.Especially cause water level pipe to rock on a small quantity because cable pulls in water-level gauge measuring process, by the space increased further outside water level pipe, under surface water, milliosmolarity can be larger, will be larger on the impact of groundwater level, causes groundwater level measurement result higher.
In order to ensure the accuracy of groundwater level measurement result, just need to develop a kind of device preventing surface water from oozing under water level pipe outer void.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of device preventing surface water from oozing under water level pipe outer void, improves accuracy and the reliability of groundwater level measurement result.
The utility model realizes by the following technical solutions,
The device preventing surface water from oozing under water level pipe outer void, comprises water level pipe, filter membrane and outer tube.
Described water level pipe is isodiametric circular tube structure, and it is divided into lower tube section and upper pipeline section two parts, and lower tube section and upper pipeline section are structure as a whole, and the tube wall of lower tube section is evenly provided with through hole; Described filter membrane is closely wrapped in the outer wall of the lower tube section of water level pipe, and its effect prevents silt particle from entering water level pipe inside; Described outer tube is isodiametric circular tube structure, and its pipe wall internal diameters is greater than the tube wall external diameter of water level pipe, and outer tube is enclosed within water level pipe.
In technique scheme, the tube wall external diameter of described water level pipe is 50mm, and wall thickness is 6-10mm.Wherein, the longitudinal hole of the through hole of lower tube section is apart from being 100mm, and through hole is that plum blossom-shaped is arranged, the diameter of through hole is 5-6mm.
In technique scheme, the tube wall external diameter of described outer tube is 70mm, pipe wall internal diameters is 60mm, wall thickness is 10mm, and outer tube length is 600-800mm, and its material is hard tubing, as: hard PVC pipe or steel pipe.
Using method of the present utility model is as follows:
1, vertically holed (boring aperture is more than or equal to 110mm) in the soil that will detect.
2, after having bored hole, in boring, vertically insert water level pipe, make the lower tube section of water level pipe insert below earth's surface, the upper pipeline section of water level pipe stretches out earth's surface.
3, banket (only banket between water level pipe outer wall and boring, do not banket in water level pipe pipe) in the boring of insertion water level pipe, compacted backfill, backfill is to a little higher than earth's surface, and backfill selects the soil near with the original place base soil phase.
4, outer tube coaxial sleeve on water level pipe, and by outer tube coaxially straight down press-in boring in backfill in, insertion depth is more than 500mm, and the upper orifice of outer tube exceeds the surface water water surface.
Due to the crowding-in effect of outer tube, a part of backfill to be filled between water level pipe and outer tube and compacted, and the backfill outside outer tube also can be compacted, can prevent surface water from oozing under water level pipe outer void.Meanwhile, the water level pipe caused in limnimeter measuring process rocks the space of formation, will be limited between outer tube and water level pipe, prevents surface water from oozing under water level pipe outer void.Outer tube can also protect water level pipe to exempt from destruction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1 be water level pipe, 2 be outer tube, 3 be filter membrane, 4 for backfill.
Detailed description of the invention
The technical solution of the utility model is further illustrated below in conjunction with specific embodiment.
As shown in Figure 1, a kind of device preventing surface water from oozing under water level pipe outer void, comprises water level pipe, filter membrane and outer tube.
Described water level pipe is isodiametric circular tube structure, and it is divided into lower tube section and upper pipeline section two parts, and lower tube section and upper pipeline section are structure as a whole; The tube wall of lower tube section is evenly provided with multiple through hole;
Described filter membrane is closely wrapped in the outer wall of lower tube section, and its effect prevents silt particle from entering water level pipe;
Described outer tube is isodiametric circular tube structure, and its pipe wall internal diameters is greater than the tube wall external diameter of water level pipe, and outer tube is enclosed within water level pipe.
The tube wall external diameter of described water level pipe is 50mm, and wall thickness is 6-10mm.Wherein, the longitudinal hole of the through hole of lower tube section is apart from being 100mm, and through hole is that plum blossom-shaped is arranged.The diameter of through hole is 5-6mm.
The tube wall external diameter of described outer tube is 70mm, pipe wall internal diameters is 60mm, wall thickness is 10mm, and outer tube length is 600-800mm, and its material is hard tubing, as: hard PVC pipe or steel pipe.
Using method of the present utility model is as follows:
1, vertically holed (boring aperture is more than or equal to 110mm) in the soil that will detect.
2, after having bored hole, in boring, vertically insert water level pipe, make the lower tube section of water level pipe insert below earth's surface, the upper pipeline section of water level pipe stretches out earth's surface.
3, banket (only banket between water level pipe outer wall and boring, do not banket in water level pipe pipe) in the boring of insertion water level pipe, compacted backfill, backfill is to a little higher than earth's surface, and backfill selects the soil near with the original place base soil phase.
4, outer tube coaxial sleeve on water level pipe, and by outer tube coaxially straight down press-in boring in backfill in, insertion depth is more than 500mm, and the upper orifice of outer tube exceeds the surface water water surface.
Due to the crowding-in effect of outer tube, a part of backfill to be filled between water level pipe and outer tube and compacted, and the backfill outside outer tube also can be compacted, can prevent surface water from oozing under water level pipe outer void.Meanwhile, the water level pipe caused in limnimeter measuring process rocks the space of formation, will be limited between outer tube and water level pipe, prevents surface water from oozing under water level pipe outer void.Outer tube can also protect water level pipe to exempt from destruction.
Above exemplary description is done to the utility model; should be noted that; when not departing from core of the present utility model, any simple distortion, amendment or other those skilled in the art can not spend the equivalent replacement of creative work all to fall into protection domain of the present utility model.
Claims (6)
1. the device preventing surface water from oozing under water level pipe outer void, is characterized in that, comprises water level pipe, filter membrane and outer tube,
Described water level pipe is isodiametric circular tube structure, and it is divided into lower tube section and upper pipeline section two parts, and lower tube section and upper pipeline section are structure as a whole, and the tube wall of lower tube section is evenly provided with through hole; Described filter membrane is closely wrapped in the outer wall of the lower tube section of water level pipe; Described outer tube is isodiametric circular tube structure, and its pipe wall internal diameters is greater than the tube wall external diameter of water level pipe, and outer tube is enclosed within water level pipe.
2. a kind of device preventing surface water from oozing under water level pipe outer void according to claim 1, is characterized in that: the tube wall external diameter of described water level pipe is 50mm, and wall thickness is 6-10mm.
3. a kind of device preventing surface water from oozing under water level pipe outer void according to claim 1, is characterized in that: the longitudinal hole of the through hole of the lower tube section of described water level pipe is apart from being 100mm, and through hole is that plum blossom-shaped is arranged, the diameter of through hole is 5-6mm.
4. a kind of device preventing surface water from oozing under water level pipe outer void according to claim 1, is characterized in that: the tube wall external diameter of described outer tube is 70mm, pipe wall internal diameters is 60mm, wall thickness is 10mm, and outer tube length is 600-800mm.
5. a kind of device preventing surface water from oozing under water level pipe outer void according to claim 1, is characterized in that: described outer tube is hard PVC pipe.
6. a kind of device preventing surface water from oozing under water level pipe outer void according to claim 1, is characterized in that: described outer tube is steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437324.1U CN204728299U (en) | 2015-06-23 | 2015-06-23 | A kind of device preventing surface water from oozing under water level pipe outer void |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437324.1U CN204728299U (en) | 2015-06-23 | 2015-06-23 | A kind of device preventing surface water from oozing under water level pipe outer void |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204728299U true CN204728299U (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520437324.1U Expired - Fee Related CN204728299U (en) | 2015-06-23 | 2015-06-23 | A kind of device preventing surface water from oozing under water level pipe outer void |
Country Status (1)
| Country | Link |
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| CN (1) | CN204728299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527119A (en) * | 2015-12-31 | 2016-04-27 | 上海岩土工程勘察设计研究院有限公司 | A drilling method preventing secondary pollution for reconnaissance of a polluted site |
-
2015
- 2015-06-23 CN CN201520437324.1U patent/CN204728299U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527119A (en) * | 2015-12-31 | 2016-04-27 | 上海岩土工程勘察设计研究院有限公司 | A drilling method preventing secondary pollution for reconnaissance of a polluted site |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151028 Termination date: 20160623 |