Geotechnical engineering investigation water level measuring device

Abstract

The invention relates to the technical field of geotechnical investigation water level measurement, and discloses a water level measuring device which comprises a workbench and a hydraulic cylinder installed on the workbench, the workbench comprises an upper water level pre-measuring unit and a lower water level pre-measuring unit, and the hydraulic cylinder is connected with the upper water level pre-measuring unit and the lower water level pre-measuring unit; when the water level is detected, if the lower water level pre-measuring unit gives an alarm firstly, the water level is low. According to the device, the fluctuation of the water surface can be determined and the fluctuation period can be recorded through the alarm mechanism of the device, a good detection opportunity can be determined, and an ideal detection effect can be achieved by detecting when the water level is in a relatively proper flat surface; in the continuous descending process of the device, the upper water level pre-measuring unit can detect the high water level, and when the water level is low, the lower water level pre-measuring unit can give an alarm for the low water level condition.

Description

Technical Field

[0001] The invention belongs to the technical field of geotechnical investigation and water level measurement, and in particular relates to a geotechnical engineering investigation and water level measurement device. Background Art

[0002] Geotechnical engineering is the study of solving rock and soil engineering problems, including foundations, slopes and underground engineering. With the development of various types of construction enterprises and the removal of cross-regional operating barriers, the geotechnical engineering market has been in a state of complete competition. Geotechnical engineering projects are mainly undertaken through public bidding activities. The industry has a high degree of marketization and low market concentration. my country's geotechnical engineering industry is characterized by a large number of enterprises and small scale. The concentration of the geotechnical engineering industry is low, which makes it impossible for advantageous enterprises to form scale advantages. In the future development of the geotechnical engineering industry, it is necessary to solve the problems of industry dispersion and low concentration and improve the overall In order to improve the overall competitiveness and profitability, it is necessary to seize the opportunities of the times and adapt to the timing in the future development, and achieve rapid development of the industry with a better business model and adjustment of the industry business structure type. Drilling is an important means to obtain accurate geological data under the surface in engineering geological surveys. Drilling work in surveys should be carried out on the basis of surveying and mapping and geophysical prospecting. According to the survey stage, project scale, and complexity of geological conditions, exploration lines and networks should be arranged in a purposeful and planned manner. Generally, it is carried out according to the principle of near first and far later, shallow first and deep later, sparse first and dense later. Water level measuring instruments can be called water level gauges and liquid level gauges. There are radar water level gauges, ultrasonic water level gauges, pressure water level gauges, differential pressure water level gauges, etc.

[0003] However, when the existing geotechnical engineering surveys the water level, due to the complexity of the natural environment, the water level may produce floating ripples that are higher or lower. If you want to achieve a more accurate detection effect, you need to wait until the water surface is relatively flat or gentle after it is still to perform the detection in order to achieve better detection results. Generally, underground detection is carried out by mechanical means, and people do not directly enter the underground to observe or operate with the naked eye. At this time, it is impossible to determine the fluctuations of the water surface ripples. In general, people cannot control whether the ripples on the water surface are violent. If the detection is carried out when the fluctuations are violent, the detection will not be very accurate. Therefore, it is important to wait for a better detection time. Detection at a better time can achieve a more ideal detection accuracy.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A water level measuring device for geotechnical engineering investigation comprises a workbench and a hydraulic cylinder mounted on the workbench, wherein the workbench comprises an upper water level prediction unit and a lower water level prediction unit.

[0007] The hydraulic cylinder is connected to the upper water level prediction unit and the lower water level prediction unit;

[0008] When detecting the water level, the hydraulic cylinder drives the upper water level prediction unit and the lower water level prediction unit to move downward synchronously; the upper water level prediction unit detects and warns that the water level is too high, and the lower water level prediction unit detects and warns that the water level is too low;

[0009] If the upper water level prediction unit issues an alarm first, it means the water level is high;

[0010] If the lower water level prediction unit sounds an alarm first, it means the water level is low.

[0011] Preferably, the output end of the hydraulic cylinder is connected to a circular fixing plate;

[0012] The upper water level prediction unit comprises a first mounting column, one end of which is fixed to the circular fixing plate, and one end away from the circular fixing plate is connected to a circular limit plate and a first floating plate, a circular mounting tube is movably connected between the first floating plate and the circular limit plate, a movable rod is arranged in the circular mounting tube, one end of which is fixed to the circular limit plate, and the other end is movably arranged in the circular mounting tube;

[0013] The first floating plate is also provided with a displacement measuring device.

[0014] Preferably, the lower water level prediction unit comprises a second mounting column, one end of the second mounting column is fixed to the circular fixing plate, and the other end away from the circular fixing plate is movably connected to a second floating plate.

[0015] Preferably, a placing floating plate is fixedly installed at the bottom of the second floating plate, and the placing floating plate is slidably set on the second mounting column. One end of the placing floating plate is fixedly connected to an L-shaped positioning plate, one end of the second floating plate is movably installed with a swing arm, and the other end of the swing arm is movably connected to a second flip plate, a rotating rod is fixedly installed on the second flip plate, and bearings are set at both ends of the rotating rod.

[0016] Preferably, the lower water level prediction unit includes a special-shaped block, which is installed on the inner wall of the workbench, and a fourth slide rail is provided on the special-shaped block. A telescopic locking rod is fixedly installed on the fourth slide rail, and an L-shaped positioning plate is slidably provided on the telescopic locking rod. One end of the telescopic locking rod is inserted into the second mounting column.

[0017] Preferably, support legs are fixedly installed on all four sides above the workbench, a top plate is installed above the four support legs, a rectangular slot is opened in the workbench, two cavities are arranged in the workbench, and a placement plate is arranged above the workbench.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention can determine the fluctuation of the water surface through the alarm mechanism of the device, record the fluctuation cycle, and determine a good detection time. When the water level is at a relatively suitable flat surface, the detection can achieve an ideal detection effect. When the water level is high or low, the upper water level prediction unit of the device can detect the higher water level during the continuous decline. When the water level is low, the lower water level prediction unit can issue an alarm for the low water level situation.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached picture:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of a water level measuring device for geotechnical engineering investigation;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of a workbench of a water level measuring device for geotechnical engineering investigation;

[0024] Figure 3 It is a schematic diagram of the upward structure of a workbench of a water level measuring device for geotechnical engineering investigation;

[0025] Figure 4 It is a schematic diagram of the upward-looking structure of the inner cavity of a workbench of a water level measuring device for geotechnical engineering investigation;

[0026] Figure 5 A schematic diagram of the inner structure of a workbench of a water level measuring device for geotechnical engineering investigation;

[0027] Figure 6 This is a schematic diagram of different states of a water level measuring device for geotechnical engineering investigation, where A represents the descending process, B represents when the descending process encounters a high water level, and C represents when the descending process encounters a low water level.

[0028] In the figure:

[0029] 101, workbench; 1011, supporting legs; 1012, top plate; 1013, placement plate; 1014, rectangular notch;

[0030] 2011, circular fixing plate; 2012, first mounting column; 2013, circular limiting plate; 2014, first floating plate; 2016, second mounting column; 2017, second floating plate; 201, hydraulic cylinder; 202, circular mounting cylinder; 203, displacement measuring device; 300, upper water level pre-measurement unit;

[0031] 400. Lower water level prediction unit; 401. Placing floating board; 4011. L-shaped positioning plate; 4012. Telescopic locking rod; 4013. Special-shaped block; 4014. Fourth slide rail; 402. Swing arm; 4021. Second flip plate. Detailed implementation mode

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0033] Embodiment 1:

[0034] As Figures 1 to 6 shown, a water level measuring device for geotechnical engineering investigation includes a workbench 101 and a hydraulic cylinder 201 installed on the workbench 101. The workbench 101 includes an upper water level prediction unit 300 and a lower water level prediction unit 400. The hydraulic cylinder 201 is connected to the upper water level prediction unit 300 and the lower water level prediction unit 400. When detecting the water level, the hydraulic cylinder 201 drives the upper water level prediction unit 300 and the lower water level prediction unit 400 to move downward synchronously. The upper water level prediction unit 300 detects and warns of too high water level, and the lower water level prediction unit 400 detects and warns of too low water level. If the upper water level prediction unit 300 issues an alarm first, it means the water level is relatively high. If the lower water level prediction unit 400 issues an alarm first, it means the water level is relatively low.

[0035] When this solution is in use, the upper water level prediction unit 300 and the lower water level prediction unit 400 that move downward synchronously are used to detect the height of the water level. When descending, if the upper water level prediction unit 300 contacts the water surface first, an alarm is triggered. If after descending a certain distance, the upper water level prediction unit 300 does not contact the water surface, then the lower water level prediction unit 400 triggers an alarm.

[0036] This solution provides a brand-new structure for measuring or determining the high or low water level in geotechnical engineering investigation.

[0037] As Figure 5 and Figure 6 shown, the output end of the hydraulic cylinder 201 is connected with a circular fixing plate 2011. The upper water level prediction unit 300 includes a first mounting column 2012. One end of the first mounting column 2012 is fixed on the circular fixing plate 2011, and the end far from the circular fixing plate 2011 is connected with a circular limiting plate 2013 and a first floating plate 2014. A circular mounting cylinder 202 is movably connected between the first floating plate 2014 and the circular limiting plate 2013. A movable rod is arranged in the circular mounting cylinder 202. One end is fixed on the circular limiting plate 2013, and the other end is movably arranged in the circular mounting cylinder 202. A displacement measurer 203 is also arranged on the first floating plate 2014.

[0038] During the descent, a limiting structure is provided between the circular installation cylinder 202 and the movable rod to prevent the first floating plate 2014 from falling directly under the action of gravity. The first floating plate 2014 contacts the water surface and floats on the water surface under the action of buoyancy. The first floating plate 2014 continues to descend, and the circular limiting plate 2013 drives the movable rod to enter the circular installation cylinder 202 to shrink the distance. After moving to a certain distance, the movable rod stops moving. The displacement measuring device 203 detects the distance and transmits the data to the ground end. The controller at the ground end receives the signal and makes the voice alarm sound.

[0039] During the ups and downs of the water surface, the waves will go downwards, and at this time the suspended first floating plate 2014 will follow the waves downwards, indicating that the water level is detected at a high position;

[0040] When the waves go upward, the waves push the first floating plate 2014 to follow upward, which means that the water level is detected at a low level.

[0041] like Figure 4 and Figure 5 As shown, the lower water level prediction unit 400 includes a second mounting column 2016, one end of the second mounting column 2016 is fixed on the circular fixing plate 2011, and the end away from the circular fixing plate 2011 is movably connected to the second floating plate 2017; a placing floating plate 401 is fixedly installed at the bottom of the second floating plate 2017, and the placing floating plate 401 is slidably arranged on the second mounting column 2016, one end of the placing floating plate 401 is fixedly connected to the L-shaped positioning plate 4011, and a swing arm 402 is movably installed at one end of the second floating plate 2017, and the other end of the swing arm 402 is movably connected to the second floating plate 2017. The end is movably connected with a second flip plate 4021, a rotating rod is fixedly installed on the second flip plate 4021, and bearings are arranged at both ends of the rotating rod; the lower water level pre-measurement unit 400 includes a special-shaped block 4013, the special-shaped block 4013 is installed on the inner wall of the workbench 101, a fourth slide rail 4014 is arranged on the special-shaped block 4013, a telescopic locking rod 4012 is fixedly installed on the fourth slide rail 4014, an L-shaped positioning plate 4011 is slidably arranged on the telescopic locking rod 4012, and one end of the telescopic locking rod 4012 is plugged into the second mounting column 2016;

[0042] If the water level continues to move downward, and the first floating plate 2014 and the second floating plate 2017 are not in contact with the water surface, it means that the overall water level is too low.

[0043] like Figure 1 As shown, support legs 1011 are fixedly installed on all four sides of the workbench 101, a top plate 1012 is installed above the four support legs 1011, a rectangular slot 1014 is opened in the workbench 101, two cavities are set in the workbench 101, and a placement plate 1013 is set above the workbench 101.

[0044] The implementation principle of a geotechnical engineering survey water level measurement device of this embodiment is as follows:

[0045] First, the workbench 101 is placed at the water level of the geotechnical engineering project to be surveyed. When the placement is completed, the staff controls the hydraulic cylinder 201 or other lifting mechanism to operate through the controller. When the hydraulic cylinder 201 operates, it can drive the circular fixed plate 2011 to move vertically downward. When the circular fixed plate 2011 moves vertically downward, it can drive the first installation column 2012 and the second installation column 2016 to move vertically downward. When the first installation column 2012 and the second installation column 2016 move vertically downward, they can drive the first floating plate 2014 and the second floating plate 2017 to move vertically downward.

[0046] If the first floating plate 2014 touches the water surface, the first floating plate 2014 is suspended on the water surface under the action of buoyancy, and continues to move downward for a distance and remains stable. The displacement measuring device 203 detects the change in distance and generates a signal to alarm, which indicates that the water level is generally high.

[0047] At this time, if the water surface is fluctuating and has large fluctuations, the suspended first floating plate 2014 will move up and down on the first mounting column 2012 following the fluctuations of the waves, and the displacement distance is detected and recorded by the displacement measuring device 203;

[0048] During the descent process, if there is no contact with the water surface, the lower water level prediction unit 400 will move to a certain distance and then generate a mechanical alarm;

[0049] If the water surface is flat or in the process of rising water level, the distance between the first floating plate 2014 and the circular limiting plate 2013 will only shrink during the descending process, and generally there will be no elongation or unchanged situation;

[0050] If it is extended or unchanged, it means it is at a high level;

[0051] Because the second mounting column 2016 is provided with a second floating plate 2017 and the placement floating plate 401 moves vertically downward, because the placement floating plate 401 is fixedly installed with an L-shaped positioning plate 4011, and a telescopic locking rod 4012 is slidably provided above the L-shaped positioning plate 4011, and the telescopic locking rod 4012 is plugged into the second mounting column 2016, the second floating plate 2017 and the placement floating plate 401 can move vertically downward until the second floating plate 2017 and the placement floating plate 401 move to a certain position. At this time, the telescopic locking rod 4012 can be driven to slide onto the fourth slide rail 4014 provided on the special-shaped block 4013, so as to ensure that the telescopic locking rod 4012 leaves the second floating plate 2017, thereby achieving unlocking. At this time, if the water level is below the unlocked placement floating plate 401, the placement floating plate 401 can drive the second flip plate 4021 to knock on the inner cavity of the workbench 101 through the swing arm 402 under the gravity of the second flip plate 4021, thereby generating an alarm to warn that the water level is too low.

[0052] If there is no water below, the second floating plate 2017 will descend and perform the knocking. If there is water below, the second floating plate 2017 will be supported by the buoyancy of the water surface to prevent the second floating plate 2017 from descending and failing to produce the knocking.

[0053] In this way, when knocking occurs, it means that the water level is at a low level at this time, that is, knocking occurs when the water level drops, and when the water level rises, the water will support the second floating plate 2017 and knocking cannot occur.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A water level measuring device for geotechnical engineering investigation, comprising a workbench (101) and a hydraulic cylinder (201) mounted on the workbench (101), wherein the workbench (101) comprises an upper water level prediction unit (300) and a lower water level prediction unit (400), Features: The hydraulic cylinder (201) is connected to the upper water level prediction unit (300) and the lower water level prediction unit (400); When detecting the water level, the hydraulic cylinder (201) drives the upper water level prediction unit (300) and the lower water level prediction unit (400) to move downward synchronously; the upper water level prediction unit (300) detects and warns that the water level is too high, and the lower water level prediction unit (400) detects and warns that the water level is too low; If the upper water level prediction unit (300) issues an alarm first, it means that the water level is high; If the lower water level prediction unit (400) issues an alarm first, it means that the water level is low.

2. A geotechnical engineering survey water level measuring device according to claim 1, characterized in that: The output end of the hydraulic cylinder (201) is connected to a circular fixing plate (2011); The upper water level prediction unit (300) comprises a first mounting column (2012), one end of the first mounting column (2012) is fixed on the circular fixing plate (2011), and the end away from the circular fixing plate (2011) is connected to a circular limiting plate (2013) and a first floating plate (2014), a circular mounting cylinder (202) is movably connected between the first floating plate (2014) and the circular limiting plate (2013), and a movable rod is arranged in the circular mounting cylinder (202), one end of the first mounting column (2012) is fixed on the circular limiting plate (2013), and the other end is movably arranged in the circular mounting cylinder (202); The first floating plate (2014) is also provided with a displacement measuring device (203).

3. A geotechnical engineering survey water level measuring device according to claim 2, characterized in that: The lower water level prediction unit (400) comprises a second mounting column (2016), one end of the second mounting column (2016) is fixed on the circular fixing plate (2011), and the end away from the circular fixing plate (2011) is movably connected to a second floating plate (2017).

4. A geotechnical engineering survey water level measuring device according to claim 3, characterized in that: A placing floating plate (401) is fixedly mounted on the bottom of the second floating plate (2017); the placing floating plate (401) is slidably mounted on the second mounting column (2016); one end of the placing floating plate (401) is fixedly connected to an L-shaped positioning plate (4011); one end of the second floating plate (2017) is movably mounted with a swing arm (402); the other end of the swing arm (402) is movably connected to a second flip plate (4021); a rotating rod (3011) is fixedly mounted on the second flip plate (4021); and bearings (3012) are arranged at both ends of the rotating rod (3011).

5. A geotechnical engineering survey water level measuring device according to claim 4, characterized in that: The lower water level pre-measurement unit (400) comprises a special-shaped block (4013), the special-shaped block (4013) is mounted on the inner wall of the workbench (101), a fourth slide rail (4014) is arranged on the special-shaped block (4013), a telescopic locking rod (4012) is fixedly mounted on the fourth slide rail (4014), an L-shaped positioning plate (4011) is slidably arranged on the telescopic locking rod (4012), and one end of the telescopic locking rod (4012) is plugged into the second mounting column (2016).

6. A geotechnical engineering survey water level measuring device according to any one of claims 1 to 5, characterized in that: Support legs (1011) are fixedly installed on all four sides above the workbench (101), a top plate (1012) is installed above the four support legs (1011), a rectangular notch (1014) is opened in the workbench (101), two cavities are arranged in the workbench (101), and a placement plate (1013) is arranged above the workbench (101).

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