CN114183126A - Implementation method for ectopic water level observation of dewatering well - Google Patents
Implementation method for ectopic water level observation of dewatering well Download PDFInfo
- Publication number
- CN114183126A CN114183126A CN202111547600.6A CN202111547600A CN114183126A CN 114183126 A CN114183126 A CN 114183126A CN 202111547600 A CN202111547600 A CN 202111547600A CN 114183126 A CN114183126 A CN 114183126A
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- water level
- pipe
- well
- precipitation well
- observing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001556 precipitation Methods 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000003466 welding Methods 0.000 claims description 12
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000003673 groundwater Substances 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000009412 basement excavation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
- E21B47/047—Liquid level
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention provides an implementation method for observing the water level of a dewatering well in an abnormal position, which belongs to the field of dewatering wells and solves the problem that the actual water level mark of the dewatering well cannot be known in the prior art, and the like, and comprises the following steps: step S01: inserting the precipitation well pipe into a preset part of the foundation pit; step S02: cutting off the precipitation well pipe above the bottom plate, and sealing the wellhead of the cut precipitation well pipe by using a wellhead sealing device; step S03: and connecting the water level measuring device and the cut precipitation well pipe or wellhead sealing device by using a connecting pipe, and burying the connecting pipe under the bottom plate. The invention can solve the water level observation problem when the groundwater level is higher than the wellhead of the precipitation well pipe.
Description
Technical Field
The invention belongs to the field of dewatering wells, and particularly relates to an implementation method for ectopic water level observation of a dewatering well.
Background
Under the normal condition, the well mouth of the precipitation deep well is positioned above and below the leveled ground, the water level of the precipitation well is positioned below the well mouth of the precipitation well, and the water level observation of the precipitation well can be realized by adopting a conventional measuring method. But under some circumstances, precipitation well casing exceeds the excavation face a lot of, and can't set up the protection platform to the precipitation well in the excavation scope, consequently need cut off certain length with the precipitation well casing and protect, and precipitation well water level elevation will be higher than the well head elevation this moment, and groundwater in the precipitation well will be followed the well head and outwards spilled over, will not learn the true water level elevation (the water level of groundwater promptly) of this precipitation well this moment.
Disclosure of Invention
The invention aims to provide an implementation method for observing the water level of a dewatering well in an ectopic mode, aiming at the problems in the prior art.
The purpose of the invention can be realized by the following technical scheme: an implementation method for observing the water level of a dewatering well at different positions comprises the following steps:
step S01: inserting the precipitation well pipe into a preset part of the foundation pit;
step S02: cutting off the precipitation well pipe above the bottom plate, and sealing the wellhead of the cut precipitation well pipe by using a wellhead sealing device;
step S03: and connecting the water level measuring device and the cut precipitation well pipe or wellhead sealing device by using a connecting pipe, and burying the connecting pipe under the bottom plate.
The working principle of the invention is as follows: the position is selected earlier (the position is predetermine to the foundation ditch), then inserts the precipitation well pipe, if meet the precipitation well pipe and exceed the condition that the excavation face is many, then cut the precipitation well pipe that is located the bottom plate top, then seal the well head of the precipitation well pipe after the cutting with well head sealing device, couple together water level measuring device and the precipitation well pipe after the cutting through the connecting pipe, perhaps couple together water level measuring device and well head sealing device, the staff can observe the water level of groundwater through observing water level measuring device. The invention can solve the water level observation problem when the groundwater level is higher than the wellhead of the precipitation well pipe.
In the above method for observing the water level of the dewatering well at different positions, in step S03, the water level measuring device is connected to the connecting pipe by welding or screwing.
In the above method for observing the water level of the precipitation well at the different positions, in step S03, the connecting pipe is connected to one side of the precipitation well pipe or the wellhead sealing device by welding or screwing.
In the above implementation method for observing the water level of the dewatering well at different positions, the water level measuring device is located above the bottom plate.
In the implementation method for observing the water level of the dewatering well at the different positions, the water level measuring device is a measuring pipe, and the measuring pipe is made of transparent materials.
In the implementation method for observing the water level of the dewatering well at the different positions, the side wall of the measuring pipe is provided with scales.
In the implementation method for observing the water level of the precipitation well in the ectopic mode, the pipe diameters of the measuring pipe and the connecting pipe are smaller than the pipe diameter of the precipitation well pipe.
In the above implementation method for observing the water level of the dewatering well at different positions, the water level measuring device is a sensor or a pressure gauge.
Compared with the prior art, the invention can solve the water level observation problem when the groundwater level is higher than the wellhead of the precipitation well pipe.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a schematic representation of the construction of the wellhead sealing device of the present invention.
In the figure, 1, a precipitation well pipe; 2. a wellhead sealing device; 3. a connecting pipe; 4. a measurement tube; 5. a sensor.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-3, an implementation method for observing the water level of a dewatering well at different positions comprises the following steps:
step S01: inserting the precipitation well pipe 1 into a preset part of a foundation pit;
step S02: cutting off the precipitation well pipe 1 above the bottom plate, and sealing the wellhead of the cut precipitation well pipe 1 by using a wellhead sealing device 2;
step S03: and connecting the water level measuring device with the cut precipitation well pipe 1 or the wellhead sealing device 2 by using a connecting pipe 3, and burying the connecting pipe 3 below the bottom plate.
The connection pipe 3 is buried under the bottom plate in order to protect the connection pipe 3 better.
In more detail, in step S03, the connection pipe 3 is connected to the water level measuring device by welding or screwing. The connecting pipe 3 is connected to one side of the precipitation well pipe 1 or the wellhead sealing device 2 in a welding or threaded connection mode.
After the precipitation well pipe 1 above the bottom plate is cut off, the wellhead is sealed by the wellhead sealing device 2, then the connecting pipe 3 is welded on one side of the precipitation well pipe 1, or the connecting pipe 3 is connected on one side of the precipitation well pipe 1 through threads, or the connecting pipe 3 is connected on one side of the wellhead sealing device 2 through welding or threads, so that the precipitation well pipe 1 is communicated with the connecting pipe 3. The position of welding or threaded connection connecting pipe 3 at one side of precipitation well pipe 1 or wellhead sealing device 2 has an opening, and this opening can be cut out when needs are welded, then weld connecting pipe 3 again, also can be the opening that sets up a screw thread in advance, before welding or threaded connection connect upper connection pipe 3, this opening is stopped up with the stopper, when needs are welded or threaded connection, take off the stopper again, welding or threaded connection upper connection pipe 3.
The welded connection points also have certain strength, so that looseness is prevented from occurring under the action of air pressure and water pressure, and water leakage at the welding positions is prevented. Then, the water level measuring device is connected to the connecting pipe 3 through threads, and raw adhesive tapes are needed to be used for processing threads at the positions where the threads are connected, so that water leakage is prevented.
All the thread connection modes of the embodiment can be replaced by welding, or other connection modes can be adopted.
In further detail, the water level measuring device is located above the bottom plate. An excavation surface is selected on the bottom plate, then a pit is excavated downwards, and the water level measuring device is positioned above the bottom plate, so that people can conveniently observe the water level measuring device.
The water level measuring device has two embodiments, as follows:
in one embodiment, as shown in fig. 1, the water level measuring device is a measuring tube 4, and the measuring tube 44 is made of a transparent material. Scales are arranged on the side wall of the measuring pipe 4. This setting is convenient for observe the water level.
In more detail, the pipe diameter of the measuring pipe 4 is smaller than the pipe diameter of the precipitation well pipe 1. The pipe diameters of the measuring pipe 4 and the connecting pipe 3 are small, and the water level can be measured only by the measuring pipe 4 with the smaller pipe diameter.
In the second embodiment, as shown in fig. 2, the water level measuring device is a sensor 5 or a pressure gauge.
The water level measuring device can adopt a pressure gauge, a sensor 5 or other tools capable of displaying the water pressure and the water level.
If the groundwater level is higher than the water level at the wellhead of the precipitation well pipe 1, the sensor 5 senses the water pressure and displays the water pressure, so that the water level is observed.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although a large number of terms are used here more, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. An implementation method for observing water level of a dewatering well at different positions is characterized by comprising the following steps:
step S01: inserting the precipitation well pipe (1) into a preset position of a foundation pit;
step S02: cutting off the precipitation well pipe (1) above the bottom plate, and sealing the wellhead of the cut precipitation well pipe (1) by using a wellhead sealing device (2);
step S03: and connecting the water level measuring device with the cut precipitation well pipe (1) or the wellhead sealing device (2) by using a connecting pipe (3), and burying the connecting pipe (3) below the bottom plate.
2. The method for observing the water level of a dewatering well at different positions according to claim 1, wherein the connecting pipe (3) is connected with the water level measuring device by welding or screwing in step S03.
3. The method for observing the water level of the dewatering well at different positions according to the claim 1, characterized in that the connecting pipe (3) is connected to one side of the dewatering well pipe (1) or the wellhead sealing device (2) in a welding or threaded manner in the step S03.
4. The method as claimed in claim 1, wherein the water level measuring device is located above the bottom plate.
5. The method for observing the water level of a dewatering well at different positions is characterized in that the water level measuring device is a measuring pipe (4), and the measuring pipe (4) is made of transparent materials.
6. The method for observing the water level of the dewatering well at different positions is characterized in that scales are arranged on the side wall of the measuring pipe (4).
7. An implementation method of ectopic observation of water level of dewatering wells according to claim 5, characterized in that the pipe diameters of the measuring pipe (4) and the connecting pipe (3) are smaller than that of the dewatering well pipe (1).
8. The method for observing the water level of the dewatering well at different positions according to claim 1, wherein the water level measuring device is a sensor (5) or a pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111547600.6A CN114183126B (en) | 2021-12-16 | 2021-12-16 | Implementation method for abnormal observation water level of precipitation well |
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|---|---|---|---|
| CN202111547600.6A CN114183126B (en) | 2021-12-16 | 2021-12-16 | Implementation method for abnormal observation water level of precipitation well |
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| CN114183126A true CN114183126A (en) | 2022-03-15 |
| CN114183126B CN114183126B (en) | 2023-09-19 |
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| CN214660127U (en) * | 2021-05-25 | 2021-11-09 | 刘涛 | Intelligent detection device for drilling fluid level of anti-overflow pipe of petroleum drilling wellhead |
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| CN114183126B (en) | 2023-09-19 |
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