CN106441513A - Real-time measurement device for underground water level of foundation pit and measurement method - Google Patents
Real-time measurement device for underground water level of foundation pit and measurement method Download PDFInfo
- Publication number
- CN106441513A CN106441513A CN201611177451.8A CN201611177451A CN106441513A CN 106441513 A CN106441513 A CN 106441513A CN 201611177451 A CN201611177451 A CN 201611177451A CN 106441513 A CN106441513 A CN 106441513A
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- China
- Prior art keywords
- water level
- water
- scale bar
- level pipe
- level
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/56—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
- G01F23/58—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using mechanically actuated indicating means
Abstract
The invention relates to a real-time measurement device for underground water level of a foundation pit and a measurement method. The device comprises a water level pipe, a buoy, a straightening ring, an end cover, a scale rod and an anti-sinking cover, wherein the end cover is connected with the top of the water level pipe; a through hole is formed in the middle of the end cover; the bottom of the water level pipe is closed; a water filtering device is arranged on the position being 1m-5m above the bottom of the water level pipe; a sediment section is formed from the water filtering device to the bottom of the water level pipe; the scale rod is fixed in the middle of the straightening ring; the outer diameter of the straightening ring is equal to the inner diameter of the water level pipe; the straightening ring is capable of moving up and down in the water level pipe; the bottom of the scale rod is connected with the buoy; the buoy is arranged as a hollow sealing drum; the top of the scale rod is penetrated through the through hole of the end cover; the diameter of the scale rod is less than the diameter of the through hole; the anti-sinking cover is connected with the top of the scale rod through a thread; the diameter of the through hole is less than the diameter of the anti-sinking cover. The real-time measurement device is convenient for reading number at any time and is capable of effectively increasing the working efficiency.
Description
Technical field
The present invention relates to water table measure apparatus field, particularly discloses a kind of foundation ditch level of ground water real-time measurement apparatus
And measuring method.
Background technology
When the location that level of ground water is higher or has abundant ground backwater carries out base pit engineering earth excavation and foundation construction
When, can not only make earth excavation difficult, and destructible foundation soil, reduce foundation bearing capacity, cause engineering to be built after building up
Build thing and produce a large amount of differential settlements, or the engineering accidents such as piping, quicksand, bottom heave occur, affect neighbouring building（Structure）Build thing
Use safety and engineering be smoothed out.Therefore precipitation is the problem that must be solved first before excavation, to underground water
The monitoring of position is then the important means for monitoring dewatering effect.Traditional water level monitoring method stretches into water level pipe using water-level gauge, by
Gauge head contacts the water surface, receives system so as to connect, and triggers sounder, finally reads the water surface on cable away from water level mouth of pipe distance.
But traditional measuring method has two major defects, on the one hand measurement complex operation, measurement every time needs to carry wire spool, right
Monitoring holes are carried out one by one putting gauge head and receive the work of gauge head, and need 2 person cooperative works, and workload is big and causes measurement week
Phase is long.On the other hand it is that gauge head and cable are easily damaged during repeatedly using, needs regular maintenance, more
Change, and cable can affect certainty of measurement due to the commonly used plastic deformation for causing.Therefore in the base for solving above-mentioned two problems
On plinth, the underground water level measurement equipment for developing convenience and high-efficiency has important Practical significance.
Content of the invention
It is an object of the invention to overcoming defect present in prior art, there is provided a kind of operating efficiency, measurement of improving is filled
Put structure is simple, easy to assembly, parts are replaceable, can recycle foundation ditch level of ground water real-time measurement apparatus and measurement side
Method.
The present invention is realized in：A kind of foundation ditch level of ground water real-time measurement apparatus, including water level pipe, its feature exists
In：Also include floating drum, press from both sides straight ring, end cap, scale bar and anti-settling lid, the end cap is connected with the top of the water level pipe, described
The centre of end cap is provided with through hole, and the bottom lock of the water level pipe is provided with drainage dress at the bottom up 1m ~ 5m of the water level pipe
Put, the water treatment plant forms precipitating phase to the bottom down to water level pipe；The scale bar is fixed on the centre of the straight ring of the folder,
The external diameter for pressing from both sides straight ring is equal with the internal diameter of the water level pipe and can move up and down in the water level pipe, the bottom of the scale bar
Portion is connected with the floating drum, and the floating drum is hollow sealing drum, and the top of the scale bar passes through the through hole of the end cap, institute
State the aperture of the diameter less than the through hole of scale bar；The anti-settling lid is threadedly attached in the top of the scale bar, institute
State the diameter of the aperture less than the anti-settling lid of through hole.
The straight ring of the folder includes that inner ring, outer shroud, support bar, the inner ring are fixed on the scale bar, the outer shroud with
Fixed by the support bar between inner ring.
The scale bar is made up of 1 ~ 80 segment unit scale body of rod, is threaded connection between every 2 segment unit scale body of rod,
The length of per section of unit scale body of rod is 1 ~ 3m.
The internal diameter of the water level pipe is 60-80mm, and the external diameter of the floating drum is less than water level bore 2-4mm, the floating drum
Height be 4-5 times of water level bore.
The water treatment plant includes 3-5 layer gauzes, the 6-8 row treatment holes being located on the water level tube wall, the gauze
It is wrapped in the outside of the treatment hole.
The quantity for pressing from both sides straight ring is 1 ~ 20, is distributed on the scale bar.
Between the floating drum and scale bar, press from both sides between straight ring and scale bar, between end cap and water level pipe respectively by removable
Unload structure to be connected, the demountable structure is chosen any one kind of them in screw connection structure, eye-splice attachment structure.
A kind of foundation ditch level of ground water real-time measurement apparatus as above measure the measuring method of water level, it is characterised in that：
Comprise the steps：
1）Drill to predetermined depth in water-level observation point, and cause boring aperture more than water level pipe 38 ~ 45mm of external diameter, rinsed with water
Sediment, will enter under water level pipe in drilling after the completion of flushing, is backfilled to not cross gap between drilling and water level pipe with sand and filters dress
Put, then filled with clay；
2）Floating drum is connected with scale bar, and scale bar is connected with straight ring is pressed from both sides, by the floating drum for connecting, scale bar and the straight ring of folder
It is put in water level pipe, it is ensured that water level pipe top is exposed in scale bar upper end, and checks whether scale bar can be freely up and down；
3）End cap is connected with water level pipe top through scale bar, prevents debris from entering in water level pipe, and by anti-settling lid and scale
Bar top is connected；
4）Distance of the level of ground water apart from end cap top can directly be read by scale bar high scale, in conjunction with the end that spirit level is measured
Caping end absolute altitude, you can draw measuring point level of ground water absolute elevation.
In step 4, level of ground water absolute elevation calculating formula is as follows：
Ds=Hs-hs
Wherein, DsFor water level absolute elevation in water level pipe；
HsFor water level pipe end-cap top absolute elevation；
hsFor the registration that scale bar reads, i.e., level of ground water is apart from water level pipe end-cap top distance.
In step 2, one is arranged at interval of 3 ~ 4m on the scale bar and press from both sides straight ring.
The invention has the beneficial effects as follows：Compared with existing measuring apparatus and measuring method, measurement apparatus according to the present invention
Simple to operate with measuring method, it is easy to staff to obtain reading at any time, effectively raises operating efficiency.The present invention is filled simultaneously
Installation and convenient disassembly is put, is repeated and is recycled, improve the utilization rate of material, with good value for applications.
Description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is the overlooking the structure diagram for pressing from both sides straight ring of apparatus of the present invention.
Fig. 3 is the structural representation of the unit scale body of rod of apparatus of the present invention.
Wherein：1st, water level pipe；2nd, floating drum；3rd, straight ring is pressed from both sides；4th, end cap；5th, scale bar；6th, anti-settling lid；7th, through hole；8th, precipitate
Section；9th, gauze；10th, treatment hole；11st, inner ring；12nd, outer shroud；13rd, support bar；14th, the unit scale body of rod；15th, threaded rod；16th, interior
Screw thread.
Specific embodiment
According to Fig. 1-3, a kind of foundation ditch level of ground water real-time measurement apparatus of the invention including water level pipe 1, floating drum 2, press from both sides straight ring
3rd, end cap 4, scale bar 5 and anti-settling lid 6, the end cap 4 are connected with the top of the water level pipe 1, and the centre of the end cap 4 is provided with
Through hole 7, the bottom lock of the water level pipe 1 are provided with water treatment plant at the bottom up 1m ~ 5m of the water level pipe 1, the drainage
Device forms precipitating phase 8 to the bottom down to water level pipe 1；The water treatment plant includes 3-5 layers gauze 9, is located at the water level pipe 1
6-8 row treatment hole 10 on tube wall, the gauze 9 is wrapped in the outside of the treatment hole 10.The scale bar 5 is fixed on described
Press from both sides the centre of straight ring 3, the external diameter for pressing from both sides straight ring 3 is equal with the internal diameter of the water level pipe 1 and the straight ring 3 of the folder can be in the water
Moves up and down in the pipe 1 of position, the straight ring 3 of the folder includes that inner ring 11, outer shroud 12, support bar 13, the inner ring 11 are fixed on the quarter
On degree bar 5, fixed by the support bar 13 between the outer shroud 12 and inner ring 11.The quantity for pressing from both sides straight ring 3 is 1 ~ 20,
It is distributed on the scale bar 5.The bottom of the scale bar 5 is connected with the floating drum 2, and the floating drum 2 is hollow sealing drum,
Through hole 7 of the top of the scale bar 5 through the end cap 4, the diameter of the scale bar 5 are less than the aperture of the through hole 7；Institute
The top that anti-settling lid 6 is threadedly attached in the scale bar 5 is stated, the aperture of the through hole 7 is straight less than the anti-settling lid 6
Footpath.The scale bar 5 is made up of 1 ~ 80 segment unit scale body of rod 14, is threaded connection between every 2 segment unit scale body of rod 14,
The length of per section of unit scale body of rod 14 is 1 ~ 3m.The internal diameter of the water level pipe 1 be 60-80mm, the external diameter of the floating drum 2
Water level bore 2-4mm is less than, the height of the floating drum 2 is 4-5 times of 1 internal diameter of water level pipe.
Between the floating drum 2 and scale bar 5, press from both sides and lead between straight ring 3 and scale bar 5, between end cap 4 and water level pipe 1 respectively
Cross demountable structure to be connected, the demountable structure is chosen any one kind of them in screw connection structure, eye-splice attachment structure.
A kind of foundation ditch level of ground water real-time measurement apparatus as above measure the measuring method of water level, including following step
Suddenly：
1）Drill to predetermined depth in water-level observation point, and cause boring aperture more than 1 38 ~ 45mm of external diameter of water level pipe, rushed with water
Sediment is washed, will be entered under water level pipe 1 in drilling after the completion of flushing, be backfilled to not with the sand gap and between water level pipe 1 that will drill
Filter device, then filled with clay.
2）Floating drum 2 is connected with scale bar 5, and scale bar 5 is connected with straight ring 3 is pressed from both sides, by the floating drum 2, scale for connecting
Bar 5 and the straight ring 3 of folder are put in water level pipe 1, it is ensured that 1 top of water level pipe is exposed in 5 upper end of scale bar, and checks that scale bar 5 whether can
Freely up and down；One is arranged at interval of 3 ~ 4m on the scale bar 5 and presss from both sides straight ring 3.
3）End cap 4 is passed through scale bar 5 and end cap 4 is connected with 1 top of water level pipe, prevent debris from entering in water level pipe 1,
And anti-settling lid 6 is connected with 5 top of scale bar.
4）Distance of the level of ground water apart from 4 top of end cap can directly be read by 5 high scale of scale bar, surveyed in conjunction with spirit level
The 4 top absolute altitude of end cap for going out, you can draw measuring point level of ground water absolute elevation.
The level of ground water absolute elevation calculating formula is as follows：
Ds=Hs-hs
Wherein, DsFor water level absolute elevation in water level pipe；
HsFor water level pipe end-cap top absolute elevation；
hsFor the registration that scale bar reads, i.e., level of ground water is apart from water level pipe end-cap top distance.
Below by embodiment, the present invention is further elaborated.
Embodiment one：
PVC plastic expects pipe of the water level pipe 1 described in the present embodiment for internal diameter 65mm, 1 sealed bottom of the water level pipe, at 1 bottom of water level pipe
Portion is provided with the precipitating phase 8 of 1m upwards, and 8 arrangement above of the precipitating phase, 6 row treatment hole 10 is wrapped up with 5 layers of gauze 9, and colligation is firm,
It is threaded at the top end opening of the water level pipe 1, for connecting end cap 4.
The floating drum 2 adopts hollow plastic seal cylinder, and external diameter is 63mm, is highly 250mm, in 2 top center of floating drum
It is 50mm that position arranges depth, and the internal thread of a diameter of 4mm, for connecting scale bar 5.
The scale bar 5 adopts light plastic bar, and external diameter is 6mm, has been arranged as required to the different lengths such as 1m, 2m, 3m
The unit scale body of rod 14, indicate scale on 5 surface of scale bar, minimum precision is 1mm, and often 14 lower end of the section unit scale body of rod has
Prominent threaded rod 15,15 a diameter of 4mm of threaded rod, the upper end of the unit scale body of rod 14 have the internal thread 16 that depth is 50mm,
It is connected with threaded rod 15 by internal thread 16 between every 2 segment unit scale body of rod 14.
The straight ring 3 of the folder is adopted made of plastic, is made up of inner ring 11 and 12 two-layer annulus of outer shroud, and the external diameter of outer shroud 12 is
63mm, the internal diameter of inner ring 11 is 6mm, has support bar 13 to be connected between inner ring and outer rings.
The end cap 4 is made of plastics, and internal diameter is 65mm, is internally threaded, can be with the reserved screw thread in 1 upper end of water level pipe
Tighten；7mm through holes 7 are left at 4 top center of end cap, and scale bar 5 can be passed by through hole 7.
The anti-settling lid 6 is constituted by upper circular cover plate and with lower thread bar, and upper circular cover plate diameter is 60mm, under
The a diameter of 4mm of portion's threaded rod, the lower thread bar are connected with the upper end of the scale bar 5.
A kind of foundation ditch level of ground water real-time measurement apparatus of the present embodiment measure the measuring method of water level, specifically include following step
Suddenly：
1）Drill to predetermined depth in water-level observation point, and cause boring aperture to be more than 1 external diameter 40mm of water level pipe, it is heavy to be rinsed with water
Slag, after the completion of flushing will under water level pipe 1 enter drilling in, with sand will drill and water level pipe 1 between gap be backfilled to do not cross filter dress
Put, then filled with clay.
2）Floating drum 2 is connected with scale bar 5, and scale bar 5 is connected with straight ring 3 is pressed from both sides, by the floating drum 2, scale for connecting
Bar 5 and the straight ring 3 of folder are put in water level pipe 1, it is ensured that 1 top of water level pipe is exposed in 5 upper end of scale bar, and checks that scale bar 5 whether can
Freely up and down；One is arranged at interval of 4m on the scale bar 5 and presss from both sides straight ring 3.
3）End cap 4 is passed through scale bar 5 and end cap 4 is connected with 1 top of water level pipe, prevent debris from entering in water level pipe 1,
And anti-settling lid 6 is connected with 5 top of scale bar.
4）Distance of the level of ground water apart from 4 top of end cap can directly be read by 5 high scale of scale bar, surveyed in conjunction with spirit level
The 4 top absolute altitude of end cap for going out, you can draw measuring point level of ground water absolute elevation.
Of the invention compared with existing measuring apparatus and measuring method, simple to operate, be easy to staff to obtain reading at any time,
Effectively raise operating efficiency.Equipment is installed and convenient disassembly simultaneously, is repeated and is recycled, improves the use of material
Rate, with good value for applications.
Claims (10)
1. a kind of foundation ditch level of ground water real-time measurement apparatus, including water level pipe, it is characterised in that：Also include floating drum, press from both sides straight ring, end
Lid, scale bar and anti-settling lid, the end cap are connected with the top of the water level pipe, and the centre of the end cap is provided with through hole, described
The bottom lock of water level pipe, is provided with water treatment plant at the bottom up 1m ~ 5m of the water level pipe, and the water treatment plant is to down to water
Precipitating phase is formed on the bottom of position pipe；The scale bar is fixed on the centre of the straight ring of the folder, presss from both sides the external diameter and the water level of straight ring
The internal diameter of pipe is equal and can move up and down in the water level pipe, and the bottom of the scale bar is connected with the floating drum, described floating
Cylinder is hollow sealing drum, the through hole of the top of the scale bar through the end cap, and the diameter of the scale bar is less than described
The aperture of through hole；The anti-settling lid is threadedly attached in the top of the scale bar, and the aperture of the through hole is anti-less than described
The diameter of heavy lid.
2. foundation ditch level of ground water real-time measurement apparatus according to claim 1, it is characterised in that：The straight ring of the folder includes
Inner ring, outer shroud, support bar, the inner ring are fixed on the scale bar, pass through the support bar between the outer shroud and inner ring
Fixed.
3. foundation ditch level of ground water real-time measurement apparatus according to claim 1, it is characterised in that：The scale bar by 1 ~
The 80 segment unit scale bodies of rod are constituted, and are threaded connection between every 2 segment unit scale body of rod, per section of unit scale body of rod
Length is 1 ~ 3m.
4. foundation ditch level of ground water real-time measurement apparatus according to claim 1, it is characterised in that：The water level pipe interior
Footpath is 60-80mm, and the external diameter of the floating drum is less than water level bore 2-4mm, and the height of the floating drum is the 4-5 of water level bore
Times.
5. foundation ditch level of ground water real-time measurement apparatus according to claim 1, it is characterised in that：The water treatment plant bag
3-5 layer gauzes, the 6-8 row treatment holes being located on the water level tube wall is included, the gauze is wrapped in the outside of the treatment hole.
6. foundation ditch level of ground water real-time measurement apparatus according to claim 1, it is characterised in that：The number for pressing from both sides straight ring
Measure as 1 ~ 20, be distributed on the scale bar.
7. foundation ditch level of ground water real-time measurement apparatus according to claim 1, it is characterised in that：The floating drum and scale
It is connected by demountable structure between bar, between the straight ring of folder and scale bar, between end cap and water level pipe respectively, the detachable knot
Structure is chosen any one kind of them in screw connection structure, eye-splice attachment structure.
8. a kind of foundation ditch level of ground water real-time measurement apparatus as described in any one in claim 1-7 measure the measurement of water level
Method, it is characterised in that：Comprise the steps：
1）Drill to predetermined depth in water-level observation point, and cause boring aperture more than water level pipe 38 ~ 45mm of external diameter, rinsed with water
Sediment, will enter under water level pipe in drilling after the completion of flushing, is backfilled to not cross gap between drilling and water level pipe with sand and filters dress
Put, then filled with clay；
2）Floating drum is connected with scale bar, and scale bar is connected with straight ring is pressed from both sides, by the floating drum for connecting, scale bar and the straight ring of folder
It is put in water level pipe, it is ensured that water level pipe top is exposed in scale bar upper end, and checks whether scale bar can be freely up and down；
3）End cap is connected with water level pipe top through scale bar, prevents debris from entering in water level pipe, and by anti-settling lid and scale
Bar top is connected；
4）Distance of the level of ground water apart from end cap top can directly be read by scale bar high scale, in conjunction with the end that spirit level is measured
Caping end absolute altitude, you can draw measuring point level of ground water absolute elevation.
9. foundation ditch level of ground water real-time measurement apparatus according to claim 8 measure the measuring method of water level, and its feature exists
In：In step 4, level of ground water absolute elevation calculating formula is as follows：
Ds=Hs-hs
Wherein, DsFor water level absolute elevation in water level pipe；
HsFor water level pipe end-cap top absolute elevation；
hsFor the registration that scale bar reads, i.e., level of ground water is apart from water level pipe end-cap top distance.
10. foundation ditch level of ground water real-time measurement apparatus according to claim 8 measure the measuring method of water level, and its feature exists
In：In step 2, one is arranged at interval of 3 ~ 4m on the scale bar and press from both sides straight ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611177451.8A CN106441513A (en) | 2016-12-19 | 2016-12-19 | Real-time measurement device for underground water level of foundation pit and measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611177451.8A CN106441513A (en) | 2016-12-19 | 2016-12-19 | Real-time measurement device for underground water level of foundation pit and measurement method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106441513A true CN106441513A (en) | 2017-02-22 |
Family
ID=58214991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611177451.8A Pending CN106441513A (en) | 2016-12-19 | 2016-12-19 | Real-time measurement device for underground water level of foundation pit and measurement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106441513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880637A (en) * | 2021-02-02 | 2021-06-01 | 北京市水科学技术研究院 | Dual-purpose measuring point for underground hidden culvert engineering settlement deformation and underground water level monitoring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202024806U (en) * | 2011-04-27 | 2011-11-02 | 刘威 | Underground water level observation device |
| CN206248176U (en) * | 2016-12-19 | 2017-06-13 | 上海南汇建工建设(集团)有限公司 | A kind of foundation ditch level of ground water real-time measurement apparatus |
-
2016
- 2016-12-19 CN CN201611177451.8A patent/CN106441513A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202024806U (en) * | 2011-04-27 | 2011-11-02 | 刘威 | Underground water level observation device |
| CN206248176U (en) * | 2016-12-19 | 2017-06-13 | 上海南汇建工建设(集团)有限公司 | A kind of foundation ditch level of ground water real-time measurement apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880637A (en) * | 2021-02-02 | 2021-06-01 | 北京市水科学技术研究院 | Dual-purpose measuring point for underground hidden culvert engineering settlement deformation and underground water level monitoring |
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