CN216646198U - Device for water injection test of drill hole - Google Patents
Device for water injection test of drill hole Download PDFInfo
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- CN216646198U CN216646198U CN202122962097.2U CN202122962097U CN216646198U CN 216646198 U CN216646198 U CN 216646198U CN 202122962097 U CN202122962097 U CN 202122962097U CN 216646198 U CN216646198 U CN 216646198U
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Abstract
The utility model discloses a device for a drilling water injection test, which comprises a test rod and a water injection pipe, wherein the water injection pipe is arranged inside the test rod, the side wall of the test rod is connected with a fixed plate, the side wall of the test rod is provided with a transparent window, the side wall of the transparent window is provided with scale marks, two sides of a rod body of the test rod, which are positioned below the fixed plate, are respectively provided with a vertical plate, the side wall of each vertical plate is provided with a vertical chute, the inner wall of each vertical chute is connected with a connecting rod in a sliding manner, one end of each connecting rod, which extends out of the vertical chute, is connected with a connecting block, and one end, which is far away from the connecting rod, of each connecting block is connected with a floating plate. According to the utility model, on the premise that the test rod is not lifted out of the drill hole, the water level in the drill hole can be quickly, continuously and accurately read through the scale marks, so that the obtained data is more accurate, and the unused floating plate can be clamped through the clamping plate, so that the device is more convenient to carry.
Description
Technical Field
The utility model relates to the technical field of geological survey, in particular to a device for a borehole water injection test.
Background
The water injection test is a test of directing water injection in a drill hole or a test pit, and measuring the permeability coefficient of a medium in a target layer by measuring related parameters such as water injection quantity, time, water level and the like at regular time. The water injection test can be used for loam, silt, sandy soil and sandy cobble layers with high permeability below the underground water level, and can also be used for cohesive soil layers and rock stratums with low permeability.
When the water level in the drill hole is observed, the water level difference is difficult to accurately, quickly and continuously read due to the fact that the water level is located below the ground, so that the data of a water injection test is not accurate enough, and subsequent calculation and analysis are influenced; the water filling test needs to be performed in different drill holes, so the portability of the test device is also a problem to be solved, and for this reason, a device for the water filling test of the drill holes is provided to solve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, such as: the water level change in the drill hole is difficult to read accurately, quickly and continuously, the experimental device is not portable enough, the requirements of experiments in different places are difficult to meet, and the device for the water injection test of the drill hole is provided.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a device for a drilling water injection test comprises a test rod and a water injection pipe, wherein a cavity structure is formed inside the test rod, the water injection pipe is arranged inside the test rod, the side wall of the test rod is connected with a fixed plate, the side wall of the test rod is provided with a transparent window, the side wall of the transparent window is provided with scale marks, two sides of a rod body of the test rod below the fixed plate are respectively provided with a vertical plate, the side wall of each vertical plate is provided with a vertical chute, the inner wall of each vertical chute is connected with a connecting rod in a sliding mode, one end, extending out of the vertical chute, of each connecting rod is connected with a connecting block, and one end, far away from the connecting rod, of each connecting block is connected with a floating plate; two the connecting rod is kept away from connecting block one end and is connected with an annular cover jointly, the water injection pipe passes the annular position in the middle of the annular cover, the annular cover top runs through test rod bottom wall and is connected with the pointer.
Preferably, be equipped with at least one limiting mechanism at the riser lateral wall, limiting mechanism includes slide bar, motion pole, splint and spring, the riser lateral wall is equipped with two standing grooves, both sides all are equipped with the sliding tray about the standing groove, the both ends of slide bar respectively with the inside sliding connection of sliding tray, the motion pole puts with the slide bar central point and is connected, the motion pole stretches out standing groove one end and is connected with splint, spring one end is connected with the slide bar lateral wall, the spring other end is connected with the standing groove diapire.
Preferably, the width of the floating plate is smaller than that of the vertical plate, and the positions of the two clamping plates are symmetrically arranged about the vertical sliding groove.
Preferably, the side wall of the splint close to one side of the motion rod is abutted against the side wall of the vertical plate in the initial state, and the length of the motion rod is smaller than the depth of the placing groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. the test rod is placed in the drill hole, the bottom wall of the fixing plate abuts against the ground, so that the test rod can be placed more stably, water enters the drill hole through the water injection pipe, the indicating needle is kept stable under the action of buoyancy of the floating plate, after the water penetrates into a rock stratum, the water level in the drill hole is reduced, the indicating needle descends along with the floating plate, and the numerical value on the scale mark is read through the transparent window to know the change of the water level in the drill hole;
2. the riser lateral wall is equipped with two standing grooves, and both sides all are equipped with the sliding tray about the standing groove, the both ends of slide bar respectively with the inside sliding connection of sliding tray, the motion pole is connected with the slide bar center, the motion pole stretches out standing groove one end and is connected with splint, spring one end is connected with the slide bar lateral wall, the spring other end is connected with the standing groove diapire, through the setting of slide bar, splint and spring, can fix the position of kickboard better for test device carries the convenience more that changes.
Drawings
FIG. 1 is a schematic structural diagram of the device for the borehole water injection test of the present invention;
FIG. 2 is a bottom view of a trial of the present invention;
fig. 3 is a schematic structural diagram of the limiting mechanism of the present invention.
In the figure: the device comprises a test rod 1, a water injection pipe 2, a fixing plate 3, a transparent window 4, scale marks 5, vertical plates 6, vertical sliding grooves 7, connecting rods 8, connecting blocks 9, floating plates 10, annular sleeves 11, indicating needles 12, a sliding rod 13, a moving rod 14, a clamping plate 15, springs 16, a placing groove 17, a sliding groove 18 and a clamping hole 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The drilling water injection test is a method for measuring permeability of rock and soil layers in the field. And injecting water to the test section through the drilling hole, keeping the fixed water head height, measuring the injected water quantity of the rock-soil layer or measuring the change rate of the water head height and the test along with time so as to determine the permeability coefficient of the rock-soil layer, wherein the water injection test can be used for loam, silt, sandy soil and sandy gravel layers with high permeability below the underground water level, and can also be used for cohesive soil layers and rock layers with low permeability.
Referring to fig. 1-3, a device for a drilling water injection test comprises a test rod 1 and a water injection pipe 2, wherein the water injection pipe 2 is arranged inside the test rod 1, a fixed plate 3 is sleeved on the side wall of the test rod 1, a transparent window 4 is arranged on the side wall of the test rod 1, scale marks 5 are arranged on the transparent window 4, vertical plates 6 are respectively arranged on two sides of a rod body of the test rod 1 below the fixed plate 3, vertical chutes 7 are arranged on the side walls of the vertical plates 6, connecting rods 8 are slidably connected to the inner walls of the vertical chutes 7, one ends of the connecting rods 8 extending out of the vertical chutes 7 are connected with connecting blocks 9, one ends of the two connecting rods 8 far away from the connecting blocks 9 are commonly connected with an annular sleeve 11, the water injection pipe 2 passes through an annular part in the middle of the annular sleeve 11, the top ends of the annular sleeve 11 extend into the test rod 1 above the fixed plate, and are connected with an indicating needle 12 at the upper end;
wherein, keep away from 8 one ends of connecting rod at connecting block 9 and be connected with kickboard 10, connecting block 9 has with kickboard 10 to be connected, and kickboard 10 reciprocates, and the width of kickboard 10 is less than the width of riser 6. Wherein, the floating plate 10 is formed with a clamping hole 19.
Wherein, the side wall of the vertical plate 6 is provided with at least one limiting mechanism, and the limiting mechanism comprises a sliding rod 13, a moving rod 14, a clamping plate 15 and a spring 16. The clamping plate 15 is matched with the clamping hole in size, and can be inserted into the clamping hole 19.
Wherein, be equipped with two standing groove 17 at 6 lateral walls of riser, both sides all are equipped with sliding tray 18 about standing groove 17, the both ends of slide bar 13 respectively with the inside sliding connection of sliding tray 18, motion pole 14 is connected with slide bar 13 central point, motion pole 14 stretches out standing groove 17 one end and is connected with splint 15, spring 16 one end is connected with slide bar 13 lateral wall, the spring 16 other end is connected with standing groove 17 diapire.
The two clamping plates 15 are symmetrically arranged about the vertical sliding groove 7, and the side wall of one side of the clamping plate 15 close to the moving rod 14 is abutted against the side wall of the vertical plate 6 in an initial state.
Wherein, the length of motion pole 14 is less than the degree of depth of standing groove 17, and the length of motion pole 14 is shorter for motion pole 14 can not destroy standing groove 17, makes the centre gripping effect of splint 15 better.
Wherein, the arrangement of the annular sleeve 11 enables the two connecting rods 8 to be lifted simultaneously, which is convenient for the floating plate 10 to move.
When the water level gauge is used, firstly, a test rod 1 is placed in a drill hole, the bottom surface of a fixing plate 3 is abutted against the ground, so that the test rod 1 can be stably placed, water can be injected into the drill hole through a water injection pipe 2, when the water level in the drill hole rises, a floating plate 10 also rises along with the rise of the water level, the rising of the floating plate 10 also drives an annular sleeve 11 to rise, so that an indicator 12 at the top of the annular sleeve also rises along with the rise of the water level, and at the moment, the water level in the drill hole can be read from a scale mark 5 through a transparent window 4 arranged on the side wall of the test rod 1;
after a period of time, water in the drill hole slowly permeates into the rock stratum, the water level in the drill hole is reduced, and the current water level in the drill hole can be read out again through the reading on the scale mark 5 on the side wall of the transparent window 4, so that the test data are more accurate;
when test rod 1 need be carried and the removal, can stir the nearly top position of erecting spout 7 with kickboard 10 and be located the below of splint, pull splint 15 again, make motion bar 14 drive slide bar 13 and move, the motion of slide bar 13 can make spring 16 stretched, upwards promote kickboard 10, just can make the lower extreme of splint 15 stretch into the tight hole 19 of the tight hole of kickboard, thereby clip kickboard 10, at this moment loosen splint 15, the kickboard 10 will be held under spring 16's effect to splint 15, make the device more portable.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like are used in the orientations and positional relationships indicated in the drawings only for the convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the utility model concepts of the present invention in the scope of the present invention.
Claims (4)
1. The device for the water injection test of the drill hole comprises a test rod (1) and a water injection pipe (2) which are internally provided with cavity structures, and is characterized in that the water injection pipe (2) is arranged inside the test rod (1), the side wall of the test rod (1) is connected with a fixing plate (3), the side wall of the test rod (1) is provided with a transparent window (4), the side wall of the transparent window (4) is provided with scale marks (5), two sides of a rod body of the test rod (1) below the fixing plate (3) are respectively provided with a vertical plate (6), the side wall of the vertical plate (6) is provided with a vertical sliding groove (7), the inner wall of the vertical sliding groove (7) is connected with a connecting rod (8) in a sliding manner, one end of the connecting rod (8) extending out of the vertical sliding groove (7) is connected with a connecting block (9), and one end of the connecting block (9) far away from the connecting rod (8) is connected with a floating plate (10); two connecting rod (8) are kept away from connecting block (9) one end and are connected with an annular cover (11) jointly, water injection pipe (2) pass the annular position in the middle of annular cover (11), annular cover (11) top is run through and is stretched into in test rod (1) and is connected with pointer (12).
2. The device for the water injection test in the drilled hole is characterized in that at least one limiting mechanism is arranged on the side wall of a vertical plate (6), the limiting mechanism comprises a sliding rod (13), a moving rod (14), a clamping plate (15) and a spring (16), the side wall of the vertical plate (6) is provided with two placing grooves (17), sliding grooves (18) are arranged on the upper side and the lower side of each placing groove (17), two ends of the sliding rod (13) are respectively in sliding connection with the inner parts of the sliding grooves (18), the moving rod (14) is connected with the central position of the sliding rod (13), one end of the moving rod (14), extending out of the placing grooves (17), is connected with the clamping plate (15), one end of the spring (16) is connected with the side wall of the sliding rod (13), and the other end of the spring (16) is connected with the bottom wall of the placing groove (17).
3. The device for the borehole waterflooding test according to claim 2, characterized in that the width of the float plate (10) is less than the width of the riser (6), and the positions of the two clamping plates (15) are symmetrically arranged with respect to the vertical chute (7).
4. The device for the borehole waterflooding test according to claim 3, wherein the clamping plate (15) abuts against the side wall of the riser (6) in an initial state near one side wall of the motion rod (14), and the length of the motion rod (14) is smaller than the depth of the placing groove (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122962097.2U CN216646198U (en) | 2021-11-29 | 2021-11-29 | Device for water injection test of drill hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122962097.2U CN216646198U (en) | 2021-11-29 | 2021-11-29 | Device for water injection test of drill hole |
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| CN216646198U true CN216646198U (en) | 2022-05-31 |
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| CN202122962097.2U Active CN216646198U (en) | 2021-11-29 | 2021-11-29 | Device for water injection test of drill hole |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116642816A (en) * | 2023-06-15 | 2023-08-25 | 合肥工大共达工程检测试验有限公司 | Automatic water injection test equipment for cement soil impervious wall |
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2021
- 2021-11-29 CN CN202122962097.2U patent/CN216646198U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116642816A (en) * | 2023-06-15 | 2023-08-25 | 合肥工大共达工程检测试验有限公司 | Automatic water injection test equipment for cement soil impervious wall |
| CN116642816B (en) * | 2023-06-15 | 2023-11-10 | 合肥工大共达工程检测试验有限公司 | Automatic water injection test equipment for cement soil impervious wall |
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