CN116952474A - Automatic acquisition and water leakage monitoring system for double-plug pressurized water test data - Google Patents
Automatic acquisition and water leakage monitoring system for double-plug pressurized water test data Download PDFInfo
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- CN116952474A CN116952474A CN202310887994.2A CN202310887994A CN116952474A CN 116952474 A CN116952474 A CN 116952474A CN 202310887994 A CN202310887994 A CN 202310887994A CN 116952474 A CN116952474 A CN 116952474A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 194
- 238000012360 testing method Methods 0.000 title claims abstract description 95
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000005553 drilling Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims description 14
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000013480 data collection Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 7
- 208000005189 Embolism Diseases 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- 238000011835 investigation Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application discloses an automatic acquisition and water leakage monitoring system for double-plug water pressure test data, which comprises a working pipe arranged in a drill hole, wherein an upper water stop plug and a lower water stop plug are sleeved on the working pipe at intervals, and a water pressure test section is arranged in the drill hole between the upper water stop plug and the lower water stop plug; a first pressure sensor and a flow sensor are arranged in the pressurized water test section, a second pressure sensor is arranged on one side of the upper water stop plug, which is far away from the pressurized water test section, and a third pressure sensor is arranged on one side of the lower water stop plug, which is far away from the pressurized water test section; compared with the prior art, the data acquired by the flow sensor and the pressure sensor are real data of a test area, so that the situation that errors occur in the acquired test data due to manual reading and embolism leakage is effectively avoided, the acquired test data can truly reflect the permeability in a drilling test section, the working efficiency of a pressurized water test is greatly improved, and the reality and effectiveness of the data are ensured.
Description
Technical Field
The application belongs to the technical field of geological investigation of water conservancy and hydropower engineering, and particularly relates to an automatic acquisition and water leakage monitoring system for double-plug pressurized water test data.
Background
The drilling and water pressing test of the hydraulic and hydroelectric engineering is the most commonly used in-situ permeability test in engineering geological investigation, and mainly aims to measure the permeability of a rock mass and provide basic data for evaluating the permeability characteristics of the rock mass and designing permeability control measures. The drilling water pressure test is a field test method for determining the water permeability of the surrounding rock of a test section by drilling holes in a rock body, dividing the drilling holes into a plurality of test sections by adopting plugs, pressing water with preset pressure into the surrounding rock of the test section step by step and recording stable pressing flow under different test pressures. The specification requires that in the process of testing the water pressure, whether the plug or the working pipe in the hole has water leakage or not is checked.
The current common drilling pressurized water test method is to arrange a flowmeter and a pressure gauge on the ground surface of a drilling hole, observe flow and pressure data of a test section by manually reading and calculating a common pointer type water meter and a common pressure gauge, and acquire in-situ test data of the test section. The manual reading method has the problems of large error of collected data, low data processing efficiency and high labor intensity in manual recording and reading and calculation. Along with the continuous progress of investigation technology, a part of investigation design units develop a water pressure test system, so that automation and informatization of water pressure test data acquisition and processing are realized, and the precision of water pressure test data acquisition is improved. However, the system is only carried out for a single plug test section, and the problems of how to automatically collect the pressurized water test data of a double plug test section and detect whether the double plug leaks or not at the same time are still not solved.
Disclosure of Invention
The application provides a double-plug water pressure test data automatic acquisition and water leakage monitoring system, which can solve the problems of large error of acquired data, low data processing efficiency and high labor intensity in manual recording and reading and calculation in a manual reading method.
In order to solve the problems, the technical scheme provided by the application is as follows:
the embodiment of the application provides a double-plug water pressure test data automatic acquisition and water leakage monitoring system, which comprises a working pipe (2) arranged in a drill hole (1), wherein an upper water stop plug (31) and a lower water stop plug (32) are sleeved on the working pipe (2) at intervals, a region in the drill hole (1) between the upper water stop plug (31) and the lower water stop plug (32) is a water pressure test section (4), part of the working pipe (2) in the water pressure test section (4) is a flower pipe (10), and the water pressure test section (4) is filled with test water from a through hole on the surface of the flower pipe (10).
A first pressure sensor (51) and a flow sensor (6) are arranged in the pressurized water test section (4), a second pressure sensor (52) is arranged on one side, far away from the pressurized water test section (4), of the upper water stop plug (31), and a third pressure sensor (53) is arranged on one side, far away from the pressurized water test section (4), of the lower water stop plug (32); the first pressure sensor (51), the second pressure sensor (52), the third pressure sensor (53) and the flow sensor (6) are used for transmitting water pressure and flow data to the data receiving processor (7), and the data receiving processor (7) is used for transmitting the processed water pressure and flow data to the terminal equipment (8).
According to an alternative embodiment of the application, the data receiving processor (7) comprises a pressurized water test data automatic receiving module (71) and a pressurized water test data automatic processing module (72).
According to an alternative embodiment of the present application, the terminal device (8) is a computer, and the data receiving processor (7) is connected to a USB interface of the computer through a signal line to transmit data; the terminal equipment (8) is used for storing the water pressure and flow data transmitted by the data receiving processor or further processing the data, and intuitively displaying the water pressure test result in a chart form so as to facilitate the observation, judgment and analysis of an experimenter.
According to an alternative embodiment of the application, the second pressure sensor (52) is arranged at the top of the upper water stop plug (31) and is used for detecting the pressure of the water leaking from the upper water stop plug (31); the lower water stop plug (32) is arranged at the bottom of the lower water stop plug (32) and is used for detecting the pressure of the leaked water of the lower water stop plug 32.
According to an alternative embodiment of the application, the flow sensor (6) is arranged at the top position of the tube (10).
According to an alternative embodiment of the application, the first pressure sensor (51) is attached to the wall of the flower pipe (10), and the second pressure sensor (52) and the third pressure sensor (53) are attached to the wall of the working pipe (2).
According to an alternative embodiment of the application, the first pressure sensor (51), the second pressure sensor (52) and the third pressure sensor (53) are detachably connected to the working tube (2).
According to an alternative embodiment of the application, the upper water stop plug (31) and the lower water stop plug (32) are in detachable sealing connection with the working pipe (2).
According to an alternative embodiment of the application, the working pipe (2) is composed of a plurality of drill rods, and the upper water stop plug (31) and the lower water stop plug (32) are made of rubber.
According to an alternative embodiment of the application, the bore (1) has an inner diameter of 91mm and the working tube (2) has an inner diameter of 50mm.
The beneficial effects are that: the embodiment of the application provides a double-plug water pressure test data automatic acquisition and water leakage monitoring system, which comprises a working pipe arranged in a drilling hole, wherein an upper water stop plug and a lower water stop plug are sleeved on the working pipe at intervals, a water pressure test section is arranged in the drilling hole between the upper water stop plug and the lower water stop plug, a working pipe is arranged in the water pressure test section, and a pattern pipe is arranged in the working pipe, wherein test water for the surface through holes of the pattern pipe is filled in the water pressure test section; a first pressure sensor and a flow sensor are arranged in the pressurized water test section, a second pressure sensor is arranged on one side of the upper water stop plug, which is far away from the pressurized water test section, and a third pressure sensor is arranged on one side of the lower water stop plug, which is far away from the pressurized water test section; the data receiving and processing device is used for transmitting the processed water pressure and flow data to the terminal equipment.
Compared with the prior art, the pressure sensor and the flow sensor are arranged at the drill hole outlet ends of the test area and the upper/lower water stop plugs, so that the data collected by the flow sensor and the pressure sensor are real data of the test area, the situation that errors occur in collected test data due to manual reading and plug leakage is effectively avoided, the collected test data can truly reflect the permeability in the drill hole test section, the working efficiency of a water pressing test is greatly improved, and the reality and effectiveness of the data are ensured.
Drawings
In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an automatic data acquisition and water leakage monitoring system for a double-plug pressurized water test according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a data acquisition and processing system according to an embodiment of the present application.
In the figure: the device comprises a drilling hole 1, a working tube 2, an upper water stop plug 31, a lower water stop plug 32, a pressure test section 4, a first pressure sensor 51, a second pressure sensor 52, a third pressure sensor 53, a flow sensor 6, a data receiving processor 7, a data receiving module 71, a data processing module 72, a terminal device 8, a connecting wire 9 and a flower tube 10.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
As shown in fig. 1, the embodiment of the application provides an automatic data collection and water leakage monitoring system for a double-plug water pressure test, which comprises a working pipe 2 arranged in a drill hole 1, wherein an upper water stop plug 31 and a lower water stop plug 32 are sleeved on the working pipe 2 at intervals, the upper water stop plug 31 and the lower water stop plug 32 are in sealing connection with the inner wall of the drill hole 1, and the upper water stop plug 31 and the lower water stop plug 32 are preferably made of rubber. The area in the drilling hole 1 between the upper water stop plug 31 and the lower water stop plug 32 is a pressurized water test section 4, a part of the working pipe 2 in the pressurized water test section 4 is a flower pipe 10, a plurality of through holes are formed in the pipe body of the flower pipe 10, and the pressurized water test section 4 is filled with test water for hitting the through holes on the surface of the flower pipe 10.
The inside of the pressurized water test section 4 is provided with a first pressure sensor 51 and a flow sensor 6, the first pressure sensor 51 is used for monitoring the water pressure in the pressurized water test section 4, and the flow sensor 6 is used for monitoring the water flow in the pressurized water test section 4. The side of the upper water stop plug 31 far away from the pressurized water test section 4 is provided with a second pressure sensor 52, and the second pressure sensor 52 is preferably arranged at the top of the upper water stop plug 31 and is used for detecting the pressure of water leakage of the upper water stop plug 31; the side of the lower water stop plug 32 far from the pressurized water test section is provided with a third pressure sensor 53, and the third pressure sensor 53 is preferably arranged at the bottom of the lower water stop plug 32 and is used for detecting the pressure of the leaked water of the lower water stop plug 32.
Referring to fig. 2 in combination with fig. 1, the water pressure and flow data of the first pressure sensor 51, the second pressure sensor 52, the third pressure sensor 53 and the flow sensor 6 are transmitted to the data receiving processor 7, and the data receiving processor 7 is used for transmitting the processed water pressure and flow data to the terminal device 8. For example, the second pressure sensor 52 is electrically connected to the data reception processor 7 via the connection line 9.
The data receiving processor 7 includes a pressurized water test data automatic receiving module 71 and a pressurized water test data automatic processing module 72. The terminal device 8 is a computer or an iPad, and the data receiving processor 7 is connected with a USB interface of the computer or the iPad through a connecting wire. The data receiving processor 7 in the present embodiment is connected with a USB interface of a computer through a signal line to transmit data; the terminal device 8 is used for storing the water pressure and flow data transmitted by the data receiving processor or further processing the data, and intuitively displaying the water pressure test result in a chart form so as to facilitate the observation, judgment and analysis of an experimenter.
The first pressure sensor 51, the second pressure sensor 52, the third pressure sensor 53 and the flow sensor 6 in this embodiment are all in accordance with the sensor principle in the prior art, and detect whether or not the water leakage condition occurs in the upper/lower water stop plugs. In the whole process of the water pressure test, the pressure sensor and the flow sensor are used for monitoring, the data receiving and processing instrument 7 is used for automatically reading and processing the data, and the water leakage condition of the water stop plug is judged through the reading. If the data collected by the second pressure sensor 52 at the upper water stop plug 31 and the third pressure sensor 53 at the lower water stop plug 32 are unchanged from the initial data, the water stop plug is effectively isolated in the water pressing process, and no water leakage occurs; if the collected data is gradually increased compared with the initial data, the water leakage condition at the water stop plug or the working pipe joint is indicated, the test is stopped, measures are taken to process, the sealing reliability at the working pipe joint is ensured, and the water stop plug is effectively isolated.
In addition, for the installation of the first pressure sensor 51 and the flow sensor 6, it is only necessary to ensure that the first pressure sensor 51 and the flow sensor 6 are placed in the corresponding pressure test section 4, the second pressure sensor 52 is required to be arranged at the top of the upper water stop plug 31, the third pressure sensor 53 is required to be arranged at the bottom of the lower water stop plug 32, and the first pressure sensor 51, the second pressure sensor 52, the third pressure sensor 53 and the flow sensor 6 are detachably connected with the working tube 2. The working pipe 2 is composed of a plurality of drill rods, connecting wires are arranged along the drill rods, the sealing performance of the water stop plug is guaranteed to be good, the joint of the drill rods needs to be sealed well, and the water stop effect is guaranteed. The upper water stop plug 31 and the lower water stop plug 32 are preferably detachably and sealingly connected to the working pipe 2. The flow sensor 6 is preferably arranged at the top position of the pipe 10, so that the water flow in the pressurized water test section 4 can be monitored well.
In a preferred embodiment, the bore 1 has an inner diameter of 91mm and the working tube 2 has an inner diameter of 50mm. In other embodiments the dimensions of the borehole 1 and the working tube 2 are not limited.
The present application is not limited to the above embodiments, and any modifications, equivalent substitutions and improvements made by those skilled in the art within the scope of the present application are intended to be included within the scope of the present application; various modifications and changes may be made by one skilled in the art without departing from the spirit and scope of the application, which is therefore intended to be covered by the appended claims.
Claims (10)
1. The automatic acquisition and water leakage monitoring system for the double-plug water pressure test data is characterized by comprising a working pipe (2) arranged in a drilling hole (1), wherein an upper water stop plug (31) and a lower water stop plug (32) are sleeved on the working pipe (2) at intervals, a water pressure test section (4) is arranged in a region in the drilling hole (1) between the upper water stop plug (31) and the lower water stop plug (32), part of the working pipe (2) in the water pressure test section (4) is a floral tube (10), and the water pressure test section (4) is filled with test water from a through hole on the surface of the floral tube (10);
a first pressure sensor (51) and a flow sensor (6) are arranged in the pressurized water test section (4), a second pressure sensor (52) is arranged on one side, far away from the pressurized water test section (4), of the upper water stop plug (31), and a third pressure sensor (53) is arranged on one side, far away from the pressurized water test section (4), of the lower water stop plug (32); the first pressure sensor (51), the second pressure sensor (52), the third pressure sensor (53) and the flow sensor (6) are used for transmitting water pressure and flow data to the data receiving processor (7), and the data receiving processor (7) is used for transmitting the processed water pressure and flow data to the terminal equipment (8).
2. The automatic double-plug pressurized water test data collection and water leakage monitoring system according to claim 1, wherein the data receiving processor (7) comprises an automatic pressurized water test data receiving module (71) and an automatic pressurized water test data processing module (72).
3. The automatic double-plug water pressure test data acquisition and water leakage monitoring system according to claim 2, wherein the terminal equipment (8) is a computer, and the data receiving processor (7) is connected with a USB interface of the computer through a signal line to transmit data; the terminal equipment (8) is used for storing the water pressure and flow data transmitted by the data receiving processor or further processing the data, and intuitively displaying the water pressure test result in a chart form so as to facilitate the observation, judgment and analysis of an experimenter.
4. The automatic double-plug pressurized water test data collection and water leakage monitoring system according to claim 1, wherein the second pressure sensor (52) is disposed on top of the upper water stop plug (31) for detecting the pressure of the pressurized water leaked from the upper water stop plug (31); the lower water stop plug (32) is arranged at the bottom of the lower water stop plug (32) and is used for detecting the pressure of the leaked water of the lower water stop plug 32.
5. The automatic double-plug pressurized water test data acquisition and water leakage monitoring system according to claim 1, wherein the flow sensor (6) is arranged at the top position of the flowtube (10).
6. The automatic double-plug pressurized water test data acquisition and water leakage monitoring system according to claim 1, wherein the first pressure sensor (51) is attached to the wall of the pipe (10), and the second pressure sensor (52) and the third pressure sensor (53) are attached to the wall of the working pipe (2).
7. The automatic double-plug pressurized water test data acquisition and water leakage monitoring system according to claim 1, wherein the first pressure sensor (51), the second pressure sensor (52) and the third pressure sensor (53) are detachably connected with the working pipe (2).
8. The automatic double-plug pressurized water test data acquisition and water leakage monitoring system according to claim 1, wherein the upper water stop plug (31) and the lower water stop plug (32) are detachably and hermetically connected with the working pipe (2).
9. The automatic double-plug water pressure test data acquisition and water leakage monitoring system according to claim 1, wherein the working pipe (2) is composed of a plurality of drill rods, and the upper water stop plug (31) and the lower water stop plug (32) are made of rubber.
10. The automatic double-plug pressurized water test data acquisition and water leakage monitoring system according to claim 1, wherein the inner diameter of the drill hole (1) is 91mm, and the inner diameter of the working tube (2) is 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310887994.2A CN116952474A (en) | 2023-07-19 | 2023-07-19 | Automatic acquisition and water leakage monitoring system for double-plug pressurized water test data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310887994.2A CN116952474A (en) | 2023-07-19 | 2023-07-19 | Automatic acquisition and water leakage monitoring system for double-plug pressurized water test data |
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| CN116952474A true CN116952474A (en) | 2023-10-27 |
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| CN202310887994.2A Pending CN116952474A (en) | 2023-07-19 | 2023-07-19 | Automatic acquisition and water leakage monitoring system for double-plug pressurized water test data |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06146251A (en) * | 1992-11-06 | 1994-05-27 | Chuo Kaihatsu Kk | Device for testing water-permeability in hole |
| JP2002004257A (en) * | 2000-06-23 | 2002-01-09 | Nittoc Constr Co Ltd | Permeability test method and device therefor |
| CN106769788A (en) * | 2017-02-21 | 2017-05-31 | 中国水利水电科学研究院 | A kind of Rock And Soil packer permeability test device and method of testing |
| CN109267961A (en) * | 2018-11-05 | 2019-01-25 | 长江勘测规划设计研究有限责任公司 | A kind of water pressure test in borehole multichannel conversion quick pressure releasing device and its pressure relief method |
| CN109682742A (en) * | 2019-02-13 | 2019-04-26 | 华北有色工程勘察院有限公司 | A kind of multistage gradient pressure stabilizing water pressure test in borehole device and test method |
| JP2020016449A (en) * | 2018-07-23 | 2020-01-30 | 株式会社日立ハイテクノロジーズ | Automatic analyzer and water leakage detection method of automatic analyzer |
| CN210005075U (en) * | 2019-06-28 | 2020-01-31 | 中国电建集团贵阳勘测设计研究院有限公司 | Water leakage monitoring device for plug and working pipe in drilling water-pressing test |
| CN111722300A (en) * | 2020-06-30 | 2020-09-29 | 黄河勘测规划设计研究院有限公司 | Layered instantaneous water pumping type micro-water test method in drill hole |
| CN212008241U (en) * | 2020-03-10 | 2020-11-24 | 中山市水利水电勘测设计咨询有限公司 | Test system for water pressure test |
| CN213392127U (en) * | 2020-10-29 | 2021-06-08 | 四川省地质工程勘察院集团有限公司 | Water stopping device with self-adaptive pressure for drilling water pressure in aquifer |
| CN114486671A (en) * | 2021-12-16 | 2022-05-13 | 广东省交通规划设计研究院集团股份有限公司 | Intelligent conveying embolism pressurized-water test device for cross-ridge tunnel ultra-deep drilling |
| CN218383748U (en) * | 2022-10-17 | 2023-01-24 | 中国水利水电第七工程局有限公司 | Water stopper for water pressing test |
-
2023
- 2023-07-19 CN CN202310887994.2A patent/CN116952474A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06146251A (en) * | 1992-11-06 | 1994-05-27 | Chuo Kaihatsu Kk | Device for testing water-permeability in hole |
| JP2002004257A (en) * | 2000-06-23 | 2002-01-09 | Nittoc Constr Co Ltd | Permeability test method and device therefor |
| CN106769788A (en) * | 2017-02-21 | 2017-05-31 | 中国水利水电科学研究院 | A kind of Rock And Soil packer permeability test device and method of testing |
| JP2020016449A (en) * | 2018-07-23 | 2020-01-30 | 株式会社日立ハイテクノロジーズ | Automatic analyzer and water leakage detection method of automatic analyzer |
| CN109267961A (en) * | 2018-11-05 | 2019-01-25 | 长江勘测规划设计研究有限责任公司 | A kind of water pressure test in borehole multichannel conversion quick pressure releasing device and its pressure relief method |
| CN109682742A (en) * | 2019-02-13 | 2019-04-26 | 华北有色工程勘察院有限公司 | A kind of multistage gradient pressure stabilizing water pressure test in borehole device and test method |
| CN210005075U (en) * | 2019-06-28 | 2020-01-31 | 中国电建集团贵阳勘测设计研究院有限公司 | Water leakage monitoring device for plug and working pipe in drilling water-pressing test |
| CN212008241U (en) * | 2020-03-10 | 2020-11-24 | 中山市水利水电勘测设计咨询有限公司 | Test system for water pressure test |
| CN111722300A (en) * | 2020-06-30 | 2020-09-29 | 黄河勘测规划设计研究院有限公司 | Layered instantaneous water pumping type micro-water test method in drill hole |
| CN213392127U (en) * | 2020-10-29 | 2021-06-08 | 四川省地质工程勘察院集团有限公司 | Water stopping device with self-adaptive pressure for drilling water pressure in aquifer |
| CN114486671A (en) * | 2021-12-16 | 2022-05-13 | 广东省交通规划设计研究院集团股份有限公司 | Intelligent conveying embolism pressurized-water test device for cross-ridge tunnel ultra-deep drilling |
| CN218383748U (en) * | 2022-10-17 | 2023-01-24 | 中国水利水电第七工程局有限公司 | Water stopper for water pressing test |
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