CN214503289U - Water pressure test device - Google Patents
Water pressure test device Download PDFInfo
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- CN214503289U CN214503289U CN202120743475.5U CN202120743475U CN214503289U CN 214503289 U CN214503289 U CN 214503289U CN 202120743475 U CN202120743475 U CN 202120743475U CN 214503289 U CN214503289 U CN 214503289U
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- inclinometer
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- supply pipe
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Abstract
The utility model relates to a water-pressure test device that geological survey used, including air pump, blast pipe, flow pipe, flowmeter, pressure gauge, water pump, handhole door, first joint, upper portion gasbag, second joint, third joint, lower part gasbag. The water pressure test device further comprises an inclinometer device which comprises an inclinometer display, an inclinometer cable, a fourth connector and an inclinometer pipe. The problem that the hole wall is damaged in a pressurized water test can be solved by adopting the air bag to replace a water stop rubber plug, and the target stratum can be accurately measured by combining the inclination measuring device.
Description
Technical Field
The utility model relates to a geological survey device, more specifically say, relate to a water-pressure test device that geological survey used.
Background
The existing water-pressure test device is generally characterized in that a drilling part is generally in a structure that two water-stopping rubber plugs which are separated by a certain distance are connected in series on a water-feeding drill rod, the water-feeding drill rod of the two water-stopping rubber plugs is a perforated pipe provided with water outlet holes, so that water is pressed into a rock stratum section to be tested, the water-feeding drill rod is positioned at the lower water-stopping rubber plug and is sealed, and pressed water is prevented from overflowing. However, the water-pressing test device has the disadvantages that firstly, the water-stopping rubber plug is a rubber plug with fixed size, if the diameter of the rubber plug is larger than the aperture of the drilled hole, the hole wall is easy to collapse or damage in the process of running in; if the diameter of the rubber plug is smaller than the aperture of the drilled hole, the sealing performance of the water stopping rubber plug is insufficient, so that the pressed water overflows from the water stopping rubber plug, and the measurement structure is not accurate; secondly, the borehole cannot be guaranteed to be vertical during borehole construction, namely the borehole usually has a certain inclination, and the inclinations at different depths are usually different, so that the actually measured permeability parameter of the stratum is not the permeability parameter of the stratum at the target depth (vertical depth).
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a water pressure test device. The technical scheme is as follows: the water pressure test device comprises an air pump, an air supply pipe, a water supply pipe, a flowmeter, a pressure gauge, a water pressure pump, a hole cover, a first joint, an upper air bag, a second joint, a third joint and a lower air bag; the hole cover covers the top of the drill hole and is flush with the ground surface, and holes for respectively passing through the air supply pipe and the water supply pipe are formed in the hole cover; the upper part of the air supply pipe is connected with the air pump, the lower part of the air supply pipe is communicated with the upper air bag through a first joint, the lower part of the upper air bag is provided with a second joint, the upper part of the lower air bag is provided with a third joint, the second joint is connected with the third joint through another section of air supply pipe, and then the upper air bag is communicated with the lower air bag; the upper part of the water supply pipe is sequentially connected with the flowmeter, the pressure gauge and the water pressure pump, the lower part of the water supply pipe sequentially penetrates through the first joint, the upper part air bag and the second joint and is finally fixed on the third joint, the lowest end of the water supply pipe is sealed, a water outlet hole is formed in the water supply pipe between the second joint and the third joint, and water pressed in by the water pressure pump flows out to a position between the two air bags from the water outlet hole in the water supply pipe.
Preferably, the air supply pipe and the water supply pipe on the upper part of the first joint are both provided with scales for reflecting the length of the pipeline, on one hand, the depth of a pressurized water test section can be reflected, and on the other hand, the air bag is kept centered and aligned by the consistent depth of the air supply pipe and the water supply pipe.
Preferably, the pressurized water test device further comprises an inclinometer/inclinometer, wherein the inclinometer comprises an inclinometer display, an inclinometer cable, a fourth joint and an inclinometer pipe; the hole cover is provided with a hole for allowing a inclinometer cable to pass through, the upper portion of the inclinometer cable is connected with the inclinometer display, the lower portion of the inclinometer cable sequentially penetrates through the first joint, the upper portion air bag, the second joint, the third joint, the lower portion air bag and the fourth joint, the fourth joint is arranged on the lower portion of the lower portion air bag, the lowest portion of the inclinometer cable is connected with the inclinometer pipe, and the inclinometer pipe is provided with the measuring probe.
Preferably, graduations for reflecting the length are arranged on the inclinometer cable.
Preferably, the inclinometer is provided with a centralizing wheel for centralizing the inclinometer.
The beneficial effects of the utility model are that replace the stagnant water plug through adopting the gasbag, can solve the problem that the pressurized-water test destroys the pore wall, through combining the deviational survey device, can accurately measure target formation.
Drawings
FIG. 1 is a schematic structural diagram of the present invention
FIG. 2 is a schematic view of the structure of the inclinometer/inclinometer of the present invention
In the figure, 1-an air pump, 2-an air supply pipe, 3-a water supply pipe, 4-a flow meter, 5-a pressure gauge, 6-a water pressure pump, 7-a hole cover, 8-a first connector, 9-an upper air bag, 10-a second connector, 11-a third connector, 12-a lower air bag, 13-the ground surface, 14-a drill hole, 15-an inclinometer display, 16-an inclinometer cable, 17-a fourth connector and 18-an inclinometer pipe.
Detailed Description
A water pressure test device comprises an air pump 1, an air supply pipe 2, a water supply pipe 3, a flowmeter 4, a pressure gauge 5, a water pressure pump 6, a hole cover 7, a first connector 8, an upper air bag 9, a second connector 10, a third connector 11 and a lower air bag 12; the hole cover 7 covers the top of the drilled hole 14 and is flush with the ground surface, and holes for respectively passing through the air supply pipe 2 and the water supply pipe 3 are formed in the hole cover 7; the upper part of the air supply pipe 2 is connected with the air pump 1, the lower part of the air supply pipe is communicated with the upper air bag 9 through a first joint 8, the lower part of the upper air bag 9 is provided with a second joint 10, the upper part of the lower air bag 12 is provided with a third joint 11, the second joint 10 is connected with the third joint 11 through another section of the air supply pipe 2, and then the upper air bag 9 is communicated with the lower air bag 12; the flowmeter 4, the pressure gauge 5 and the water pressurizing pump 6 are sequentially connected to the upper portion of the water feeding pipe 3, the lower portion of the water feeding pipe sequentially penetrates through the first connector 8, the upper portion air bag 9 and the second connector 10, finally the water feeding pipe is fixed to the third connector 11, the lowest end of the water feeding pipe is sealed, a water outlet hole is formed in the water feeding pipe between the second connector 10 and the third connector 11, and water pressed into the water pressurizing pump flows out of the water outlet hole in the water feeding pipe to a position between the two air bags.
Preferably, scales for indicating the length of the pipeline are arranged on the air supply pipe 2 and the water supply pipe 3 above the first joint 11, so that the depth of the pressurized water test section can be indicated on one hand, and the air bag can be centered and aligned by the consistent depth of the air supply pipe 2 and the water supply pipe 3 on the other hand.
Preferably, the pressurized water test device further comprises an inclinometer/inclinometer, wherein the inclinometer comprises an inclinometer display 15, an inclinometer cable 16, a fourth joint 17 and an inclinometer pipe 18; the hole cover 7 is provided with a hole for passing through an inclinometer cable 16, the upper part of the inclinometer cable 16 is connected with an inclinometer display 15, the lower part of the inclinometer cable passes through a first joint 8, an upper air bag 9, a second joint 10, a third joint 11, a lower air bag 12 and a fourth joint 17 in sequence, the lower part of the lower air bag 12 is provided with the fourth joint 17, the lowest part of the inclinometer cable 16 is connected with an inclinometer 18, and a measuring probe is arranged on the inclinometer.
Preferably, graduations representing the length are provided on the inclinometer cable 16.
Preferably, the inclinometer 18 is provided with a centering wheel for centering the inclinometer.
The working principle is as follows: when the pressurized water test device and the inclinometer are separated (figure 1), after drilling, the corresponding pseudo depths of different true depths of the drilled hole are measured by the inclinometer. The true depth is the vertical depth of the drilled hole, namely the drilling depth under the ideal state that the inclination of the drilled hole is 0; the pseudo depth is the length of the path of the actually drilled inclined drill hole from the hole opening to the hole bottom direction, namely the length measured by the pipeline/cable scale after the pressurized water test device is put into the test device. For a stratum with a true depth of a target penetration parameter to be measured, firstly converting the true depth into a pseudo depth based on data measured by an inclination measuring device; then, a water pressing test device is put into the water pressing test device, so that the depths of the air supply pipe 2 and the water supply pipe 3 correspond to the pseudo depths; inflating the upper air bag 9 and the lower air bag 12 by an air pump, and sealing two ends of a to-be-pressurized water test section after expansion; then, a water pressurizing test is carried out through a water pressurizing pump.
When the pressurized water test device is integrated with an inclinometer (fig. 2), after drilling, the pressurized water test device is put into the ground, and for the stratum with the true depth of the target permeability parameter to be measured, the stratum with the true depth measured by the inclinometer is put into the ground; then, the upper air bag 9 and the lower air bag 12 are inflated by an air pump, and after the inflation, two ends of a to-be-pressurized water test section can be closed; then, a water pressurizing test is carried out through a water pressurizing pump.
Claims (5)
1. A water pressure test device comprises an air pump, an air supply pipe, a water supply pipe, a flowmeter, a pressure gauge, a water pressure pump, a hole cover, a first joint, an upper air bag, a second joint, a third joint and a lower air bag, and is characterized in that the hole cover covers the top of a drill hole and is provided with holes for respectively passing through the air supply pipe and the water supply pipe; the upper part of the air supply pipe is connected with the air pump, the lower part of the air supply pipe is communicated with the upper air bag through a first joint, the lower part of the upper air bag is provided with a second joint, the upper part of the lower air bag is provided with a third joint, the second joint is connected with the third joint through another section of air supply pipe, and then the upper air bag is communicated with the lower air bag; the upper part of the water supply pipe is sequentially connected with the flowmeter, the pressure gauge and the water pressure pump, the lower part of the water supply pipe sequentially penetrates through the first joint, the upper part air bag and the second joint and is finally fixed on the third joint, the lowest end of the water supply pipe is sealed, a water outlet hole is formed in the water supply pipe between the second joint and the third joint, and water pressed in by the water pressure pump flows out to a position between the two air bags from the water outlet hole in the water supply pipe.
2. The water pressure test device as claimed in claim 1, wherein scales for indicating the length of the pipeline are provided on both the air supply pipe and the water supply pipe at the upper part of the first joint.
3. The water pressure test apparatus of claim 1, further comprising an inclinometer including an inclinometer display, an inclinometer cable, a fourth joint, and an inclinometer tube; the hole cover is provided with a hole for allowing a inclinometer cable to pass through, the upper portion of the inclinometer cable is connected with the inclinometer display, the lower portion of the inclinometer cable sequentially penetrates through the first joint, the upper portion air bag, the second joint, the third joint, the lower portion air bag and the fourth joint, the fourth joint is arranged on the lower portion of the lower portion air bag, the lowest portion of the inclinometer cable is connected with the inclinometer pipe, and the inclinometer pipe is provided with the measuring probe.
4. The water pressure test device according to claim 3, wherein graduations representing the length are arranged on the cable of the inclinometer.
5. The water pressure test apparatus of claim 3, wherein the inclinometer is provided with a centering wheel for centering the inclinometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120743475.5U CN214503289U (en) | 2021-04-13 | 2021-04-13 | Water pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120743475.5U CN214503289U (en) | 2021-04-13 | 2021-04-13 | Water pressure test device |
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| Publication Number | Publication Date |
|---|---|
| CN214503289U true CN214503289U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120743475.5U Active CN214503289U (en) | 2021-04-13 | 2021-04-13 | Water pressure test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116973291A (en) * | 2023-09-21 | 2023-10-31 | 石家庄铁道大学 | Rock stratum water pressure in-situ stability and transient integrated permeability measurement device |
-
2021
- 2021-04-13 CN CN202120743475.5U patent/CN214503289U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116973291A (en) * | 2023-09-21 | 2023-10-31 | 石家庄铁道大学 | Rock stratum water pressure in-situ stability and transient integrated permeability measurement device |
| CN116973291B (en) * | 2023-09-21 | 2023-12-19 | 石家庄铁道大学 | Rock stratum water pressure in-situ stability and transient integrated permeability measurement device |
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