CN216810037U - Deep foundation pit underwater leakage point detection device - Google Patents
Deep foundation pit underwater leakage point detection device Download PDFInfo
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- CN216810037U CN216810037U CN202220077349.5U CN202220077349U CN216810037U CN 216810037 U CN216810037 U CN 216810037U CN 202220077349 U CN202220077349 U CN 202220077349U CN 216810037 U CN216810037 U CN 216810037U
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Abstract
The underwater leakage point detection device for the deep foundation pit comprises a frame and a current meter, wherein the frame is provided with at least two test surfaces, at least one current meter is arranged on each test surface, and a hanging part is arranged on the upper part of the frame. The frame is a hexahedral frame, the four peripheral surfaces and the bottom surface of the frame are the testing surfaces, and the testing surfaces are provided with mounting rods for mounting the flow velocity meter. The advantage lies in setting up the current meter through every face, can rationally detect current position's current velocity, if produce the rivers variation of variation, can tentatively judge the seepage point position.
Description
Technical Field
The utility model relates to the technical field of deep foundation pit safety construction, in particular to a deep foundation pit underwater leakage point detection device.
Background
In the excavation process of the deep foundation pit, the occurrence of water leakage of the deep foundation pit support structure in the earth excavation stage is always an important difficult problem troubling the construction of the deep foundation pit. The foundation pit can not be excavated continuously due to water seepage in the pit, and forced pumping can bring about the risk of foundation pit collapse if the foundation pit is not pretreated; however, if the leakage point cannot be judged, pretreatment plugging cannot be carried out, so that detection and determination of the leakage point of the deep foundation pit always troubles key technical problems of a plurality of construction units, and the traditional mode is to immerse workers in water to find the leakage point through experience judgment, so that time is consumed, and a plurality of potential safety hazards exist; the other type is that the mode through the sonar probe detects the leak source, but the inside structural complexity of deep basal pit can seriously influence the normal judgement of sonar system, leads to the unable high-efficient position that accurately detects the leak source, and sonar detection equipment is heavier, carries and the on-the-spot layout is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide the underwater leakage point detection device for the deep foundation pit, which has a simple and reasonable structure and can effectively and safely detect the leakage point position of the deep foundation pit.
The utility model is realized by the following technical scheme:
the underwater leakage point detection device for the deep foundation pit comprises a frame and a current meter, wherein the frame is provided with at least two test surfaces, at least one current meter is arranged on each test surface, and a hanging part is arranged on the upper part of the frame.
As an improvement of the scheme, the frame is a hexahedral frame, the four peripheral surfaces and the bottom surface of the frame are the testing surfaces, and the testing surfaces are provided with mounting rods for mounting the flow velocity meters. Set up the current meter through every face, can rationally detect the current velocity of position, if produce the rivers variation, can tentatively judge the seepage point position.
As an improvement of the scheme, the flow meter is a propeller type flow meter, and a propeller head of the flow meter faces the outer side of the frame. The rotary propeller type flow velocity meter is simple in structure, low in failure rate and suitable for the underwater complex environment of the deep foundation pit according to the detection principle.
As an improvement of the scheme, the frame is internally provided with a line concentration pipe, and the axis of the line concentration pipe is superposed with the vertical center line of the frame. The line concentration pipe can concentrate the back again along lifting rope to ground supervisory equipment department to the electric wire of current meter, gathers the processing to the detection information of current meter.
As an improvement of the scheme, the hanging part is a hanging ring, and the hanging ring is connected with the frame through welding or a threaded screw rod.
As an improvement of the scheme, the flow meter fixing device further comprises a clamping seat, and the clamping seat wraps a rod body of the flow meter through a bending part so as to clamp the flow meter on the mounting rod. Binding grooves are formed in the two sides, located on the bending portion, of the clamping seat. The setting of grip slipper can be with the nimble installation of velocity of flow appearance and dismantlement, also can pass through the on-the-spot requirement, carries out on-the-spot adjustment to the position and the quantity that the velocity of flow appearance of test surface was arranged.
As an improvement of the scheme, the frame and the line concentration pipe are all metal pieces, and particularly are made of stainless steel or metal pieces with antirust coatings.
The utility model has the following beneficial effects:
1. the underwater leakage point detection device for the deep foundation pit can visually detect the position of abnormal water flow under the deep foundation pit, and obtains the accurate leakage point position through the data analysis of the water flow.
2. The detection device has a simple structure, the arrangement of the flow velocity meters is reasonable, and the effect of high-efficiency and accurate underwater leakage points can be provided on the premise of reducing the equipment cost.
3. The detection device is fixed by the lifting rope and then placed into the deep foundation pit for detection, manual submerging is replaced, unnecessary danger is avoided, and detection efficiency is improved.
4. The current meter of the detection device can be freely disassembled and assembled, so that the detection device is convenient to transport, and meanwhile, the number and the positions of the current meters can be set according to the on-site environment and requirements, the transitional use of the detection device is avoided, the service life is prolonged, and the detection work is more flexible.
Drawings
Fig. 1 is a schematic structural view of the underwater leakage point detection device for the deep foundation pit.
Fig. 2 is an enlarged view of the area a of fig. 1.
Description of reference numerals: the device comprises a frame 1, a current meter 2, a clamping seat 3, a test surface 4, an installation rod 5, a hanging ring 6, a bending part 7, a binding groove 8 and a line concentration pipe 9.
Detailed Description
As shown in fig. 1 and 2, the device for detecting the underwater leakage point of the deep foundation pit comprises a frame 1, a current meter 2 and a clamping seat 3, wherein the frame 1 is a hexahedral frame made of stainless steel square pipes, the four peripheral surfaces and the bottom surface of the frame 1 are testing surfaces 4, mounting rods 5 are arranged on the testing surfaces 4 and used for mounting the current meter 2, a hanging ring 6 is arranged on the upper portion of the frame 1, and the hanging ring 6 is connected with the frame 1 through welding or threaded screws. The clamping seat 3 wraps the rod body of the flow meter 2 through the bending part 7 so as to clamp the flow meter 2 on the mounting rod 5. Binding grooves 8 are formed in the two sides, located on the bending portion 7, of the clamping seat 3. The setting of grip slipper 3 can be with the nimble installation of velocity of flow appearance 2 and dismantle, also can pass through the on-the-spot requirement, carries out on-the-spot adjustment to the position and the quantity that the velocity of flow appearance 2 of test surface 4 was arranged. The flow velocity meter 2 is a propeller type flow velocity meter 2, and a propeller head of the flow velocity meter 2 faces the outer side of the frame 1. The inside of frame 1 be equipped with line concentration pipe 9, line concentration pipe 9 axis and the coincidence of the perpendicular central line of frame 1. The wire collecting pipe 9 can collect and process the detection information of the flow velocity instrument 2 after the wires of the flow velocity instrument 2 are collected and then are conveyed to the ground monitoring equipment along the lifting rope.
The working principle is as follows:
1. the number of flow meters 2 required and the locations to be arranged are determined according to the situation of the field environment.
2. Fix the current meter 2 on the installation pole 5 of frame 1 through grip slipper 3, grip slipper 3 and installation pole 5 accessible band or wire rope bind fixedly, and the transmission line of current meter 2 stretches out from frame 1 upper portion after passing through collecting pipe 9.
3. The transmission line of the current meter 2 is fixedly connected with the monitoring equipment on the ground along the lifting rope through the lifting rope connecting frame 1 lifting ring 6.
4. And (3) hoisting the detection device into the water of the deep foundation pit along the wall surface, and detecting, wherein if the water flow is suddenly increased or abnormally fluctuated, the estimated position of the leakage point is estimated through the measurement and calculation of the hoisting depth and the monitoring equipment. And if the water flow fluctuation is normal, selecting another hoisting point and repeating the step 4 until all leakage points are detected.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The underwater leakage point detection device for the deep foundation pit is characterized by comprising a frame and a current meter, wherein the frame is provided with at least two test surfaces, at least one current meter is arranged on each test surface, and a hanging part is arranged on the upper part of the frame.
2. The deep foundation pit underwater leakage point detection device according to claim 1, wherein the frame is a hexahedral frame, the four peripheral surfaces and the bottom surface of the frame are the test surfaces, and the test surfaces are provided with mounting rods for mounting the flow velocity meters.
3. The deep foundation pit underwater leakage point detection device according to claim 1, wherein the flow velocity meter is a propeller type flow velocity meter, and a propeller head of the flow velocity meter faces the outer side of the frame.
4. The deep foundation pit underwater leakage point detection device according to claim 1, wherein a line concentration pipe is arranged inside the frame, and the axis of the line concentration pipe is coincident with the vertical center line of the frame.
5. The deep foundation pit underwater leakage point detection device according to claim 1, wherein the hanging part is a hanging ring, and the hanging ring is connected with the frame through welding or a threaded screw rod.
6. The deep foundation pit underwater leakage point detection device according to claim 2, further comprising a clamping seat, wherein the clamping seat wraps a rod body of the current meter through a bent portion so as to clamp the current meter on the mounting rod.
7. The deep foundation pit underwater leakage point detection device according to claim 6, wherein binding grooves are formed in the two sides, located on the bending portion, of the clamping seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220077349.5U CN216810037U (en) | 2022-01-12 | 2022-01-12 | Deep foundation pit underwater leakage point detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220077349.5U CN216810037U (en) | 2022-01-12 | 2022-01-12 | Deep foundation pit underwater leakage point detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216810037U true CN216810037U (en) | 2022-06-24 |
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ID=82064689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220077349.5U Active CN216810037U (en) | 2022-01-12 | 2022-01-12 | Deep foundation pit underwater leakage point detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216810037U (en) |
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2022
- 2022-01-12 CN CN202220077349.5U patent/CN216810037U/en active Active
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