CN110849787B - Test auxiliary device, pit test method or single-ring method test equipment - Google Patents
Test auxiliary device, pit test method or single-ring method test equipment Download PDFInfo
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- CN110849787B CN110849787B CN201911105555.1A CN201911105555A CN110849787B CN 110849787 B CN110849787 B CN 110849787B CN 201911105555 A CN201911105555 A CN 201911105555A CN 110849787 B CN110849787 B CN 110849787B
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- 238000012360 testing method Methods 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title abstract description 24
- 238000010998 test method Methods 0.000 title abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 371
- 238000002347 injection Methods 0.000 claims abstract description 114
- 239000007924 injection Substances 0.000 claims abstract description 114
- 239000011435 rock Substances 0.000 claims description 16
- 230000035699 permeability Effects 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 125000002950 monocyclic group Chemical group 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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Abstract
The invention discloses a test auxiliary device, which is applied to a pit test method or a single-ring test method and comprises a water level balance assembly, wherein the water level balance assembly comprises a controller and a first water level gauge, the first water level gauge is arranged in a pit or a single ring and is used for detecting the water level in the pit or the single ring in real time, the controller is electrically connected with the first water level gauge, a setting value is preset in the controller and is used for comparing the water level value detected by the first water level gauge with the setting value, a water injection unit is controlled to stop injecting water into the pit or the single ring when the water level value is equal to the setting value as a comparison result, and a water injection unit is controlled to inject water into the pit or the single ring when the water level value is smaller than the setting value as the comparison result. Correspondingly, a test pit method or single-ring method test device is also provided. The device can improve the accuracy of test result of pit test method and monocycle method, and uses manpower sparingly.
Description
Technical Field
The invention belongs to the technical field of measurement, and particularly relates to a test auxiliary device, a pit test method or single-ring method test device.
Background
The permeability coefficient of an unsaturated zone (soil between an underground water surface and an earth surface) of a site area needs to be measured in the processes of site selection at the early stage of a radioactive waste disposal site, engineering construction and the like. The test of a pit test method and a single ring (a circular ring with fixed size) method are two methods for conveniently measuring the permeability coefficient, so the method is widely applied to the field measurement of the permeability coefficient of unsaturated rocks (soil) such as sandy soil, a gravel layer and the like.
The pit testing method is to dig a test pit in the rock (soil) to be tested, the depth of the test pit is 30-50 cm, water is manually injected into the pit, the height of the water level in the pit is kept stable (about 10 cm), and the permeability coefficient of the rock (soil) to be tested is calculated by measuring the infiltration time (water adding time) and the infiltration amount (water adding amount). The single-ring method is similar to the pilot hole method in that a ring of a fixed diameter (usually 37.75 cm) is hammered into the rock (soil) layer to be tested. The traditional pit test method and single-ring test method usually require that water is continuously injected into a pit or a single ring by manpower, so that the water level in the pit or the single ring is kept at 10cm height, and the water injection amount is recorded. During the period of manual non-water injection (usually 5 minutes or 20 minutes), the water level in the pit or the single ring is in a constantly-descending state, and the water level in the pit or the single ring cannot be constantly kept constant, so that the hydraulic gradient in the pit or the single ring is changed, and the test precision is finally influenced. Therefore, the manual operation of water injection during the pit test method and the single-ring test method results in large error of test results and labor consumption.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and provides a test auxiliary device and a pit test method or single-ring test device comprising the same, wherein the device can improve the accuracy of the test results of the pit test method and the single-ring test method and save labor.
In order to achieve the above object, an embodiment of the present invention provides a test auxiliary device, which is applied to a pit test method or a single-ring test method, and includes a water level balancing assembly, where the water level balancing assembly includes a controller and a first water level gauge, and the first water level gauge is disposed in a pit or a single ring and is used for detecting a water level in the pit or the single ring in real time. The controller is electrically connected with the first water level meter, a setting value is preset in the controller, and the controller is used for comparing the water level value detected by the first water level meter with the setting value, controlling the water injection unit to stop injecting water into the pit or the single ring when the comparison result shows that the water level value is equal to the setting value, and controlling the water injection unit to inject water into the pit or the single ring when the comparison result shows that the water level value is smaller than the setting value.
Preferably, the device further comprises a data input and display assembly for receiving externally input first data comprising the diameter of the pit or single ring, and a flow meter. The flowmeter is used for recording the water injection flow of the water injection unit, the controller is electrically connected with the flowmeter and used for acquiring the water injection flow recorded by the flowmeter and recording a corresponding time value, and the controller is also electrically connected with the data input and display assembly and used for calculating the permeability coefficient according to the diameter of the pit or the single ring, the water injection flow and the time value corresponding to the water injection flow.
Preferably, the controller is further configured to transmit second data to the data input and display module, where the second data includes a water injection flow rate, a time value corresponding to the water injection flow rate, and a permeability coefficient, the data input and display module is further configured to display the first data and the second data, and the test assisting apparatus further includes: and the data sending component is electrically connected with the controller and is used for sending the first data and the second data to the remote terminal.
Further, the embodiment of the invention also provides a pit test method or single-ring test device, which comprises a pit or single ring, a water injection unit and the test auxiliary device, wherein the controller is electrically connected with the water injection unit.
Preferably, the water injection unit includes a water injection pipeline, a micro water pump and a valve, the micro water pump is arranged at the water inlet end of the water injection pipeline, is electrically connected with the controller, and is used for starting and stopping according to the instruction of the controller. The first water level gauge is arranged at the water outlet end of the water injection pipeline. The valve is arranged on the water injection pipeline, is positioned between the micro water pump and the first water level gauge, is electrically connected with the controller and is used for controlling the opening and closing of the water injection pipeline according to the instruction of the controller. The water level balance assembly further comprises a water level gauge slide rail, the water level gauge slide rail is arranged at the water outlet end of the water injection pipeline, the length of the water level gauge slide rail extends along the pipeline direction of the water injection pipeline, and the first water level gauge is arranged in the water level gauge slide rail in a sliding mode.
Preferably, the water injection pipeline is fixed on the pit edge or the single ring through a fixing assembly, the fixing assembly comprises a plurality of connecting rings and a plurality of telescopic pipes, the connecting rings are positioned at the centers of the plurality of telescopic pipes, the plurality of telescopic pipes are radially connected to the outer portions of the connecting rings, and the water injection pipeline penetrates through the connecting rings.
Preferably, the connecting ring comprises a first connecting section and a second connecting section, the first connecting section is hinged to the second connecting section, the other ends of the first connecting section and the second connecting section are fixed through a lock catch after being spliced, the inner diameter of the connecting ring is matched with the outer diameter of the water injection pipeline, the telescopic pipe comprises a sleeve and a telescopic column, the sleeve is connected to the connecting ring, one end of the telescopic column is embedded into the sleeve, and the length of the telescopic pipe is adjusted by adjusting the length of the telescopic column embedded into the sleeve.
Preferably, the fixing assembly further comprises a level, and the level is arranged on the telescopic pipe and used for detecting the horizontal position of the telescopic pipe.
Preferably, the test equipment further comprises a filtering device, and the filtering device is arranged on the water injection pipeline and is positioned between the water inlet end of the water injection pipeline and the micro water pump.
Preferably, the test equipment further comprises a water supply assembly, wherein the water supply assembly comprises a water tank and a second water level meter, the second water level meter is electrically connected with the controller, is arranged in the water tank and is used for detecting the water level in the water tank and sending the detected water level value in the water tank to the controller. And a minimum water level threshold value is also preset in the controller and is used for comparing the water level value in the water tank detected by the second water level meter with the minimum water level threshold value and sending a water shortage alarm when the water level value in the water tank is equal to or less than the minimum water level threshold value.
When the auxiliary test device provided by the embodiment of the invention is used in a pit test method or single-ring method test device, the controller is adopted to accurately control the water injection operation of the water injection unit so as to ensure that the water level in a pit or a single ring is always kept at a setting value constantly, thereby ensuring the accuracy of the test results of the pit test method and the single-ring method and saving manpower. In addition, can in time transmit the water shortage signal of test result and feed water tank for remote terminal through the data transmission subassembly to make the staff carry out the multiunit simultaneously many times experimental, realize remote monitoring management, improve test efficiency.
Drawings
FIG. 1: the structure schematic diagram of a test auxiliary device of embodiment 1 of the invention;
FIG. 2: the invention embodiment 1 a test auxiliary device water injection flow value and time curve chart;
FIG. 3a: the structure of the fixing component of the test equipment in embodiment 2 of the invention is schematically illustrated (the telescopic column is not extended);
FIG. 3b: a schematic structural diagram of a fixing assembly of a test device in embodiment 2 of the present invention (the connection ring is in an open state);
FIG. 3c: the structure schematic diagram of the fixing component of the test equipment in embodiment 2 of the invention (the telescopic column extends out);
FIG. 4: the electrical connection between each part of the test equipment in embodiment 2 of the invention is schematically shown.
In the figure: 1-a controller; 2, a miniature water pump; 3-a flow meter; 4-a valve; 5-a water level gauge slide rail; 6-a first water level gauge; 7-a data display and input component; 8-a data sending component; 9-a filter assembly; 10-a second water level gauge; an 11-monocyclic ring (the pilot pit method does not require this feature); 12-a level bar; 13-locking; 14-telescoping tubes; 15-rock (soil) to be tested; 16-a water tank; 17-connecting ring.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention is further described in detail below with reference to the accompanying drawings and examples.
Example 1:
as shown in fig. 1, the present embodiment provides a test assisting apparatus for a pit test or a single-loop test, which includes a water level balancing assembly. Wherein, the water level balance subassembly includes controller 1 and first fluviograph 6, and first fluviograph 6 is located hole or monocyclic intra-annular for detect the water level in hole or monocyclic intra-annular in real time. The controller 1 is electrically connected with the first water level gauge 6, a setting value is preset in the controller, and the controller is used for comparing the water level value detected by the first water level gauge 6 with the setting value, controlling the water injection unit to stop injecting water into the pit or the single ring 11 when the comparison result shows that the water level value is equal to the setting value, and controlling the water injection unit to inject water into the pit or the single ring 11 when the comparison result shows that the water level value is smaller than the setting value.
In this embodiment, there are two ways for the controller 1 to obtain the water level value detected by the first water level meter 6, one way is to report the water level value detected by the first water level meter 6 in real time to the controller, and the other way is to read the water level value detected by the first water level meter 6 in real time by the controller 1. Furthermore, a setting value is set in the controller 1, which in this embodiment is set to 10cm, i.e. it is necessary to keep the water level height in the pit or in the single ring 11 at 10cm. When the controller 1 is turned on, the controller 1 controls the first water level gauge 6 to be turned on, and the first water level gauge 6 performs water level detection. The controller 1 and the first water level gauge 6 can be used for detecting the water level in the pit or the single ring 11 in real time, and controlling water injection or stopping water injection into the pit or the single ring 11 according to a real-time detection result so as to keep the water level in the pit or the single ring 11 at a setting value all the time, thereby ensuring the accuracy of test results of a pit testing method and a single ring method and saving manpower.
Optionally, the test aid further comprises a data input and display assembly 7 and the flow meter 3, wherein the data input and display assembly 7 is configured to receive first data of an external input (such as manual output), the first data comprising a diameter of the pit or single ring 11 and further comprising a setting value. The flowmeter 3 is used for recording the water injection flow of the water injection unit, the controller 1 is electrically connected with the flowmeter 3 and used for acquiring the water injection flow recorded by the flowmeter and recording the corresponding time value, and the controller 1 is also electrically connected with the data input and display component 7 and used for calculating the permeability coefficient according to the diameter of the pit or the single ring 11, the water injection flow and the time value corresponding to the water injection flow.
In this embodiment, when the comparison result of the controller 1 is that the water level value detected by the first water level meter 6 is equal to the setting value and the controller 1 determines that the water level value is equal to the setting value for the first time, the controller 1 controls the flowmeter 3 to start counting, and simultaneously, the controller 1 records the time value when the flowmeter 3 is started and the water injection flow rate. The controller 1 obtains the water injection flow rate of the flow meter 3 in two ways, one is that the flow meter 3 reports the recorded water injection flow rate to the controller 1 periodically according to a preset time length, and the other is that the controller 1 reads the water injection flow rate recorded by the flow meter 3 periodically according to the preset time length, in this embodiment, the controller 1 is adopted to read the water injection flow rate recorded by the flow meter 3, for example, the reading interval of the first 5 times of the controller 1 can be set to be that the water injection flow rate recorded by the flow meter 3 is read every 5 minutes, and then the water injection flow rate recorded by the flow meter 3 is read every 20 minutes. The water injection flow rate recorded by the flowmeter 3 is an integrated value of the water injection flow rate, and is not zero during the recording process, and the controller 1 records a corresponding time value while acquiring the water injection flow rate. The readings recorded by the flow meter during the test are plotted against time in figure 2. The controller 1 calculates the permeability coefficient using the following calculation formula (1):
wherein K represents a permeability coefficient, Q t1 Representing flow data recorded by the flowmeter at time t1, Q t2 Flow data at time t2 recorded by the flowmeter, D represents the diameter of a pit or a single ring, and Δ Q = Q t2 -Q t1 ，Δt＝t2-t1。
Optionally, the controller 1 is further configured to transmit second data to the data input and display component 7, where the second data includes the water injection flow rate, a time value corresponding to the water injection flow rate, and the permeability coefficient. The data input and display component 7 is also used for displaying the first data and the second data, so that field workers can know the data and the test result of the test process in real time, the manual calculation of the test result of the workers is avoided, and the test efficiency is improved.
Optionally, the test aid further comprises: and the data sending component 8 is electrically connected with the controller 1 and is used for sending the first data and the second data to the remote terminal. The data sending component 8 can send the first data and the second data to a remote terminal in a manner of short message, bluetooth and the like, and the remote terminal can be a mobile phone, a computer or other intelligent terminals. Through adopting data transmission assembly 8 can make the staff carry out many places multiunit test simultaneously to realize remote monitoring and management to the test scene, thereby improve test efficiency.
Example 2:
the present embodiment provides a test apparatus for pit test or single ring test, comprising a pit or single ring 11, a water injection unit and the test auxiliary device described in embodiment 1, wherein the controller 1 is electrically connected to the water injection unit.
Optionally, the water injection unit comprises a water injection pipe, a micro-pump 2, and a valve 4. The miniature water pump 2 is arranged at the water inlet end of the water injection pipeline, is electrically connected with the controller 1 and is used for starting and stopping according to the instruction of the controller 1; the first water level meter 6 is arranged at the water outlet end of the water injection pipeline; the valve 4 is arranged on the water injection pipeline, is positioned between the micro water pump 2 and the first water level gauge 6, is electrically connected with the controller 1, and is used for controlling the opening and closing of the water injection pipeline according to the instruction of the controller 1.
In this embodiment, the first water level gauge 6, the valve 4 and the micro-water pump 2 are controlled by the controller 1. Controller 1 can set up on the water injection pipeline, also can place in ground, adopts in this embodiment to set up controller 1 on the water injection pipeline between miniature pump 2 and water injection pipeline intake end. When the comparison result of the controller 1 is that the water level value detected by the first water level meter 6 is smaller than the setting value, the controller 1 controls to open the valve 4 and the micro water pump 2 in sequence, so that the water injection unit is controlled to inject water into the pit or the single ring 11; when the comparison result of the controller 1 is that the water level value is equal to the setting value, the controller 1 controls to close the micro water pump 2 and the valve 4 in sequence, so that the water injection unit is controlled to stop injecting water into the pit or the single ring 11, and the water level in the pit or the single ring 11 is kept constant.
Optionally, the water level balance assembly in the auxiliary test device further comprises a water level gauge slide rail 5, the water level gauge slide rail 5 is arranged at the water outlet end of the water injection pipeline, the length of the water level gauge slide rail extends along the pipeline direction of the water injection pipeline, and the first water level gauge 6 is slidably arranged in the water level gauge slide rail 5. When the test equipment is installed, the position of the first water level gauge 6 on the water level gauge slide rail 5 is adjusted, so that the bottom of the first water level gauge 6 is in contact with the rock (soil) 15 to be tested.
Alternatively, the water injection pipe is fixed to the rim or single ring by a fixing assembly comprising a connection ring 17 and a telescopic pipe 14.
Specifically, as shown in fig. 3a, 3b, and 3c, the connection ring 17 includes a first connection section and a second connection section, which are hinged by a hinge, and the other ends of which are fixed by the locking buckle 13 after being spliced.
The number of the extension tubes 14 is plural, the connection ring 17 is positioned at the center of the plurality of extension tubes, the plurality of extension tubes are radially connected to the outside of the connection ring 17, and the water injection pipeline passes through the inside of the connection ring 17. Wherein, the inner diameter of the connecting ring is matched with the outer diameter of the water injection pipeline. The telescopic pipe 14 comprises a sleeve and a telescopic column, the sleeve is connected to the connecting ring 17, one end of the telescopic column is embedded into the sleeve, and the length of the telescopic pipe 14 can be adjusted by adjusting the length of the telescopic column embedded into the sleeve. In the test, the telescopic tube 14 is horizontally supported on the pit edge or the single ring, and the length of the telescopic tube is adjusted to adapt to the pit edges or the single rings with different sizes.
In this embodiment, the mounting position of the fixing component can be adjusted according to different test purposes. Because a test pit with a certain depth needs to be excavated in a field pit test method test, the excavation depth is not fixed, and the accurate position of the depth is not easy to control; the single-ring method test usually requires the single-ring device to be hammered into the rock (soil) 15 to be tested, and the precise hammering depth of the single ring is difficult to guarantee. Through the fixed position of adjusting fixed subassembly and water injection pipeline, can guarantee that test device is applicable to different operating modes. For example, the connection ring 17 may be installed at a water passage section of a water injection pipe between the water level gauge slide rail 5 and the valve 4; or a water pipe section of a water injection pipeline between the valve 4 and the flowmeter 3; or a water pipe section of a water injection pipeline between the flowmeter 3 and the micro water pump 2; and the water supply pipe section of the water supply pipeline between the micro water pump 2 and the controller can also be installed. Meanwhile, the compatibility of the fixing assembly to test pits or single rings with different sizes can be ensured by adjusting the telescopic columns of the telescopic pipes 14.
Optionally, the fixing assembly further comprises a level 12, which level 12 is provided on the telescopic tube 14 for detecting the horizontal position of the telescopic tube.
In this embodiment, the number of the telescopic tubes 14 is 4, and the 4 telescopic tubes are uniformly distributed on the same horizontal plane outside the connecting ring in a cross shape. The number of the horizontal rulers 12 is two, and the two horizontal rulers are respectively fixed on the two adjacent telescopic pipes and are used for respectively detecting the horizontal and longitudinal horizontal positions of the telescopic pipes, so that the accuracy of the test result is improved.
Optionally, the testing apparatus further includes a filtering device 9, and the filtering device 9 is disposed on the water injection pipeline and between the water inlet end of the water injection pipeline and the micro water pump 2. The filtering device 9 can filter impurities (large-volume impurities influencing the operation of the micro water pump 2 and the flowmeter 3) in a field water source, and ensures clean water supply, thereby prolonging the service life of the test equipment.
Optionally, the test rig further comprises a water supply assembly comprising a water tank 16 and a second water level gauge 10. The second water level gauge 10 is electrically connected to the controller 1 and disposed in the water tank 16, and the specific setting position may be an outer wall of a water inlet end of the water injection pipeline, or an inner side wall of the water tank 16, for detecting a water level in the water tank 16, and sending a water level value in the water tank detected in real time to the controller 1, or certainly, reading the water level value detected in real time by the second water level gauge 10 by the controller 1. The controller 1 is also preset with a minimum water level threshold for comparing the water level value in the water tank 16 detected by the second water level gauge with the minimum water level threshold, and sending a water shortage alarm when the water level value in the water tank is equal to or less than the minimum water level threshold.
In this embodiment, when the controller 1 is turned on, the controller 1 controls the second water level gauge 10 to be turned on, the second water level gauge 10 sends the water level value detected in real time to the controller 1, and the lowest water level threshold preset in the controller 1 can be input from the outside through the data input and display module 7. When the controller 1 compares that the water level in the water outlet tank is higher than the minimum water level threshold value, the water tank can be judged to work normally; when the controller 1 compares that the water level in the water tank is equal to or lower than the minimum water level threshold value, the water tank is judged to be in short of water, the controller 1 sends a water shortage alarm, the controller 1 specifically comprises a data sending component 8, and the data sending component 7 sends the water shortage alarm to a remote terminal to remind a worker to add water to the water tank 16 in time. As shown in fig. 4, the controller 1 may implement a control mode of an automatic test by controlling the water filling unit, the first and second water level meters, the flow meter, and the like.
The following will describe the installation steps of the test equipment in the pit testing method, specifically as follows:
step 201, excavating a circular test pit with a certain size, and executing relevant industry specifications. Usually, the pit depth is 30-50 cm, and sand gravel with the thickness of about 2cm is paved at the bottom of the pit to play a role in buffering.
And 202, fixedly connecting the water injection pipeline with the connecting ring 17 of the fixing assembly, and adjusting the fastening position of the connecting ring 17 and the water injection pipeline according to the depth of the test pit. Meanwhile, the first water level gauge 6 is adjusted to slide on the water level gauge slide rail 5, so that the bottom end of the first water level gauge 6 can be in contact with the rock (soil) 15 to be measured, namely, the distance between the setting value of the first water level gauge (the long side of the triangle of the first water level gauge shown in the figure) and the rock (soil) 15 to be measured is guaranteed to be 10cm.
In step 203, the locking device 13 is locked after adjusting and determining the fixing position of the connecting ring 17 of the fixing assembly and the water injection pipeline. The length of 4 flexible pipes 14 of fixed subassembly is adjusted according to the diameter of examination pit excavation is flexible, simultaneously, makes each flexible pipe 14 keep away from the one end of go-between and arrange in examination pit outward flange subaerial, is about to fix the subassembly and places on the hole edge of examination pit to fixed water injection pipeline.
And step 204, centering air bubbles of the level gauge by adjusting the contact position of the telescopic pipe or the telescopic column and the ground, so that the test precision is ensured.
Step 205, placing the second water level gauge 10 of the water supply assembly and the water inlet end of the water injection pipeline in the water supply tank 16.
The mounting steps for mounting the test equipment in the single-ring method are as follows:
and 301, smashing the single ring 11 into the rock (soil) 15 to be detected.
And step 302, adjusting the connecting position of the connecting ring 17 of the fixing component and the water injection pipeline according to the height of the single ring 11 and the depth of the single ring which is hammered into the rock (soil) 15 to be detected. It is usually sufficient to fix the connection ring 17 to the water passage section of the water injection pipe between the slide rail 5 of the level gauge and the valve 4. And meanwhile, the first water level gauge 6 is adjusted to slide on the water level gauge slide rail 5, so that the bottom end of the first water level gauge 6 can be in contact with the rock (soil) 15 to be measured, namely, the distance between the setting value (the long side of the triangle of the first water level gauge shown in the figure) of the first water level gauge 6 and the rock (soil) 15 to be measured is ensured to be 10cm.
Step 303, after the fixing position of the connecting ring 17 and the water injection pipeline is determined, the lock catch 13 is locked. The telescopic column is not required to be retracted, and the telescopic tube 14 of the fixing assembly is only required to be retracted to the state shown in fig. 3 a.
Step 304, leveling the single ring 11 to center the air bubbles of the level bar, and ensuring that the single ring 11 vertically smashes the rock (soil) 15 to be tested, thereby ensuring the test precision.
Step 305, the second level gauge 10 of the water supply assembly and the water inlet end of the water filling pipe are placed in the water supply tank 16.
The test auxiliary device and the test equipment provided by the embodiment improve the accuracy of the test results of the pit test method and the single-ring test method, save manpower, and have the following specific effects:
(1) The controller and the first water level meter can realize real-time detection of the water level in the pit or the single ring, and the water injection unit is controlled to inject water into the pit or the single ring or stop injecting water according to the detection result in real time, so that the water level in the pit or the single ring is always kept at a setting value, the accuracy of the test results of the pit testing method and the single ring method is ensured, manual water injection and calculation of the test results are not needed, and manpower is saved.
(2) Because of the fixed subassembly adopts flexible pipe, can follow size adjustment telescopic pipe length according to the on-the-spot hole for test equipment is simple easily to carry, has extensive suitability, and can be used to two types of experiments (promptly same test equipment both can be used to the test of trial pit method and also can be used to the single loop method experiment, and does not have special equipment and place requirement).
(3) The data input and display assembly and the data sending assembly are adopted to transmit test data in real time, so that the remote monitoring of the test process and the test result is realized, a plurality of groups of tests can be simultaneously carried out by workers, and the test efficiency is improved.
(4) Whether the single ring is vertically hammered into rock (soil) is detected by arranging the level ruler on the telescopic pipe, and the accuracy of a test result is further improved.
(5) Adopt filter equipment to filter impurity in the open-air water source, guarantee that the water supply is clean, improve test equipment's life.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (6)
1. A test device for pit test or single-ring test is characterized by comprising a pit or single ring (11), a water injection unit and a test auxiliary device,
wherein the test auxiliary device comprises a water level balance component,
the water level balancing component comprises a controller (1) and a first water level gauge (6),
the first water level gauge (6) is arranged in the pit or the single ring and is used for detecting the water level in the pit or the single ring in real time,
the controller (1) is electrically connected with the first water level gauge (6), a setting value is preset in the controller, the controller is used for comparing the water level value detected by the first water level gauge with the setting value, controlling the water injection unit to stop injecting water into the pit or the single ring (11) when the comparison result shows that the water level value is equal to the setting value, and controlling the water injection unit to inject water into the pit or the single ring (11) when the comparison result shows that the water level value is less than the setting value,
the water injection unit comprises a water injection pipeline, the controller is arranged on the water injection pipeline, the first water level meter is arranged at the water outlet end of the water injection pipeline,
the water injection pipeline is fixed on a pit edge or a single ring (11) through a fixing component,
the fixing assembly comprises a connecting ring (17) and a telescopic pipe (14),
the number of the extension tubes is multiple, the connecting ring is positioned at the center of the extension tubes, the extension tubes are radially connected outside the connecting ring, the water injection pipeline penetrates through the connecting ring so as to adjust the fastening position of the connecting ring (17) and the water injection pipeline according to the depth of a test pit during installation,
the water level balancing component also comprises a water level gauge slide rail (5),
the water level gauge slide rail (5) is arranged at the water outlet end of the water injection pipeline, the length of the water level gauge slide rail extends along the pipeline direction of the water injection pipeline, and the first water level gauge (6) is arranged in the water level gauge slide rail (5) in a sliding mode and used for sliding on the water level gauge slide rail (5) through adjustment of the first water level gauge (6) so that the bottom end of the first water level gauge (6) is in contact with a rock to be measured.
2. The apparatus according to claim 1, characterized in that the water injection unit further comprises a micro-pump (2) and a valve (4),
the miniature water pump (2) is arranged at the water inlet end of the water injection pipeline, is electrically connected with the controller (1) and is used for starting and stopping according to the instruction of the controller,
the valve (4) is arranged on the water injection pipeline, is positioned between the micro water pump (2) and the first water level gauge (6), is electrically connected with the controller and is used for controlling the opening and closing of the water injection pipeline according to the instruction of the controller.
3. The device according to claim 2, characterized in that the connection ring (17) comprises a first connection section and a second connection section, the first connection section and the second connection section are hinged, the other ends of the first connection section and the second connection section are fixed through a lock catch (13) after being combined,
the inner diameter of the connecting ring is matched with the outer diameter of the water injection pipeline,
the telescopic pipe (14) comprises a sleeve pipe and a telescopic column,
the sleeve is connected to the connecting ring, one end of the telescopic column is embedded into the sleeve, and the length of the telescopic pipe (14) is adjusted by adjusting the length of the telescopic column embedded into the sleeve.
4. The apparatus according to claim 3, characterized in that the fixing assembly further comprises a level (12), which level (12) is provided on the telescopic tube (14) for detecting the horizontal position of the telescopic tube,
the test auxiliary device also comprises a data input and display component (7) and a flowmeter (3),
the data input and display component (7) is used for receiving first data input from outside, the first data comprises the diameter of a pit or a single ring,
the flowmeter (3) is used for recording the water injection flow of the water injection unit,
the controller (1) is electrically connected with the flowmeter (3) and is used for acquiring the water injection flow recorded by the flowmeter and recording a corresponding time value, and,
the controller (1) is also electrically connected with the data input and display component (7) and is used for calculating the permeability coefficient according to the diameter of the pit or the single ring, the water injection flow and the time value corresponding to the water injection flow,
the controller (1) is also used for transmitting second data to the data input and display component (7), the second data comprises water injection flow, a time value corresponding to the water injection flow and a permeability coefficient,
the data input and display component (7) is further adapted to display first data and second data,
the test assisting apparatus further includes: and the data sending component (8) is electrically connected with the controller (1) and is used for sending the first data and the second data to the remote terminal.
5. The apparatus according to claim 4, further comprising a filtering device (9),
the filtering device (9) is arranged on the water injection pipeline and is positioned between the water inlet end of the water injection pipeline and the micro water pump (2).
6. The apparatus of claim 5, further comprising a water supply assembly,
the water supply assembly comprises a water tank (16) and a second water level gauge (10),
the second water level gauge (10) is electrically connected with the controller (1), is arranged in the water tank (16) and is used for detecting the water level in the water tank (16) and sending the detected water level value in the water tank to the controller,
and a minimum water level threshold value is also preset in the controller and is used for comparing the water level value in the water tank detected by the second water level meter with the minimum water level threshold value and sending a water shortage alarm when the water level value in the water tank is equal to or less than the minimum water level threshold value.
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| CN111896444A (en) * | 2020-07-03 | 2020-11-06 | 河海大学 | Full-automatic single-ring infiltration instrument for measuring soil saturation hydraulic conductivity |
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| CN203802120U (en) * | 2014-03-21 | 2014-09-03 | 陕西工业职业技术学院 | Banner support frame |
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