Capillary water rising height measuring instrument

Abstract

The utility model provides a capillary water rising height measuring instrument, and belongs to the technical field of agricultural water conservancy projects. The utility model aims to provide a capillary water rising height measuring instrument for solving the problem of building stability. Comprising a display board, a Mariotte bottle, two soil sample containing bottles and two pressure measuring pipes, the Mariotte bottle, the two soil sample containing bottles and the two pressure measuring pipes are detachably connected to the display board, the lower end of the Mariotte bottle is communicated with a main water inlet pipe through a Mariotte bottle water discharging pipe, and the main water inlet pipe is communicated with a soil sample containing bottle connecting pipe and a branch water inlet pipe through a four-way pipe; the soil sample containing bottle connecting pipe is connected with the soil sample containing bottle, and the branch water inlet pipe is connected with the pressure measuring pipe. By arranging the two symmetrical soil sample containing bottles and the two symmetrical pressure measuring pipes, two sets of measurement can be completed at the same time, a more accurate measurement result can be obtained by averaging the two sets of measurement results, or if the two sets of measurement results have a large difference, measurement can be conducted again after the sealing performance of the inspection device is correct, large errors in measurement are avoided, and the two sets of measurement results can also be divided into a test set and a control set. Meanwhile, obtained test results are more accurate in comparison.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural water conservancy engineering, in particular to an instrument for measuring the rising height of capillary water. Background Art

[0002] Because the tiny pores in the sand are interconnected, countless capillaries are formed and distributed above the groundwater surface. The water in the tubes rises in the opposite direction due to the adhesion to the tube wall and the molecular attraction until the gravity on the water is balanced with the force that makes it rise, and the rise stops. At this time, the height of the water rise is called the capillary water rise height.

[0003] The determination of the capillary rise height of sand is used as a reference for the design of water conservancy projects, railway projects, plant foundation projects, etc. For example, when building reservoirs, artificially irrigating farmland, and building canals, the groundwater level in the nearby areas will rise due to the construction of the project. Therefore, it is necessary to conduct engineering geological evaluation to determine whether these areas will become swamps and whether the buildings will be infiltrated and lose stability. Therefore, finding an effective solution to measure the capillary water rise height has become a way to solve the problem of building stability. Utility Model Content

[0004] The technical problems to be solved by the utility model are:

[0005] To provide a capillary water rise height measuring instrument for solving building stability.

[0006] The utility model adopts the following technical solutions to solve the above technical problems:

[0007] The utility model provides a capillary water rise height measuring instrument, comprising a display board and a Mariotte bottle detachably connected on the display board, two soil sample bottles and two pressure measuring tubes, the bottom of the Mariotte bottle is connected to the water inlet of a water discharge pipe of the Mariotte bottle, the water outlet of the water discharge pipe of the Mariotte bottle is communicated with the upper pipe opening of a three-way pipe, the two side pipe openings of the horizontal side of the three-way pipe are respectively connected to the water inlet of a total water inlet pipe, the water discharge port of each total water inlet pipe is connected to one side pipe opening of the horizontal side of a four-way pipe, the upper side pipe opening of the four-way pipe is connected to a soil sample bottle connecting pipe, the soil sample bottle connecting pipe is connected to the soil sample bottle The bottle is connected, the lower pipe opening of the four-way pipe is connected to the water inlet of the soil sample bottle drain pipe, the other side pipe opening on the horizontal side of the four-way pipe is connected to the inlet end of the branch water inlet pipe, the outlet end of the branch water inlet pipe is connected to the pressure measuring tube, the main water inlet pipe, the water inlet end of the branch water inlet pipe, the port part of the soil sample bottle connecting pipe and the soil sample bottle drain pipe are all provided with flow valves, two soil sample bottles are symmetrically and parallelly arranged on both sides below the Mariotte bottle, and the two soil sample bottles are located on the same horizontal plane, and two pressure measuring tubes are symmetrically and parallelly arranged on the outside of the soil sample bottles at corresponding positions, and the two pressure measuring tubes are located on the same horizontal plane.

[0008] Furthermore, the upper end port of the soil sample containing bottle is lower than the bottom end of the Marriott bottle or is flush with the bottom end of the Marriott bottle.

[0009] Furthermore, a plurality of limiting holes are evenly distributed on the display board, and the Malliot bottle, soil sample container bottle and pressure measuring tube are all detachably mounted on the display board via a fixing clip.

[0010] Furthermore, the display board is provided with a base, and the lower end of the base is provided with at least two universal wheels.

[0011] Furthermore, the outer walls of the pressure measuring tube and the soil sample bottle are both provided with scales.

[0012] Furthermore, the pressure measuring tube is a plexiglass pressure measuring tube, and the soil sample container is a plexiglass container.

[0013] Furthermore, the fixing clamp includes a fixing clamp body, which is an annular clamp with a notch, and the inner diameter of the fixing clamp body is respectively the same as the outer diameter of the Malliot bottle, the outer diameter of the soil sample bottle and the outer diameter of the pressure measuring tube, and elastic anti-slip pads are provided on the inner walls of the two ends of the fixing clamp body, and the outer center of the fixing clamp body is connected to a fixing ball through a connecting rod.

[0014] Furthermore, the fixing ball may be a rubber fixing ball.

[0015] Furthermore, the zero mark on the scale of the soil sample containing bottle is flush with the inner wall of the bottom.

[0016] Furthermore, a water discharge pipe is provided at the bottom of the Marriott bottle.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model discloses a capillary water rise height measuring instrument, comprising a display board and a Malliot bottle detachably connected on the display board, two soil sample bottles and two pressure measuring tubes. By arranging two symmetrical soil sample bottles and pressure measuring tubes, two groups of measurements can be completed at the same time, and a more accurate measurement result can be obtained by taking an average value according to the two groups of measurement results. If the two groups of measurement results differ greatly, re-measurement can be performed after checking that the sealing of the device is correct, so as to avoid large measurement errors. The two groups of measurement results can also be divided into a test group and a control group, so as to obtain a more accurate comparison of the test results at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a capillary water rise height measuring instrument in an embodiment of the utility model;

[0020] Figure 2 This is a front view of a capillary water rise height measuring instrument in an embodiment of the utility model;

[0021] Figure 3 This is a structural diagram of a soil sample bucket in an embodiment of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of the fixing clip in the embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Display board; 2. Marriott bottle; 3. Pressure measuring tube; 4. Soil sample bottle; 5. Fixing clamp; 6. Branch water inlet pipe; 7. Four-way pipe; 8. Three-way pipe; 9. Base; 11. Universal wheel; 13. Soil sample bottle connecting pipe; 14. Soil sample bottle drain pipe; 15. Scale; 16. Soil sample; 17. Filter paper; 18. Fixing clamp body; 19. Fixing ball; 20. Marriott bottle drain pipe; 21. Main water inlet pipe. DETAILED DESCRIPTION

[0025] In the description of the present utility model, it should be noted that the terminology nouns in the various embodiments, such as words indicating directions such as "upper", "lower", "front", "back", "left", "right", etc., are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated according to the specific directions and specified operations and methods and structures in the specification. Such directional nouns do not constitute limitations on the present utility model.

[0026] In the description of the present invention, it should be noted that the terms "first" and "second" mentioned in the embodiments of the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Specific implementation plan 1: Combine Figures 1 to 4 As shown, the utility model provides a capillary water rise height measuring instrument, comprising a display board 1 and a Mariotte bottle 2 detachably connected to the display board 1, two soil sample bottles 4 and two pressure measuring tubes 3, the bottom of the Mariotte bottle 2 is connected to the water inlet of the Mariotte bottle water discharge pipe 20, the water outlet of the Mariotte bottle water discharge pipe 20 is connected to the upper pipe mouth of the three-way pipe 8, the two side pipe mouths on the horizontal side of the three-way pipe 8 are respectively connected to the water inlets of two main water inlet pipes 21, the water outlet of each main water inlet pipe 21 is connected to one side pipe mouth on the horizontal side of a four-way pipe 7, the upper side pipe mouth of the four-way pipe 7 is connected to the soil sample bottle connecting pipe 13, the soil sample bottle connecting pipe 13 is connected to the soil sample bottle 4, and the lower side pipe mouth of the four-way pipe 7 is connected to the water inlet of the soil sample bottle water discharge pipe 14 The other side pipe opening of the horizontal side of the four-way pipe 7 is connected to the inlet end of the branch water inlet pipe 6, and the outlet end of the branch water inlet pipe 6 is connected to the pressure measuring tube 3. The main water inlet pipe 21, the water inlet end of the branch water inlet pipe 6, the port of the soil sample bottle connecting pipe 13 and the soil sample bottle drain pipe 14 are all provided with flow valves. The flow valve can control the flow and also control opening and closing. The flow valve is the prior art. The two soil sample bottles 4 are symmetrically and parallelly arranged on both sides below the Marriott bottle 2, and the two soil sample bottles 4 are located on the same horizontal plane. The upper end port of the soil sample bottle 4 is lower than the bottom end of the Marriott bottle 2 or flush with the bottom end of the Marriott bottle 2. The two pressure measuring tubes 3 are symmetrically and parallelly arranged on the outside of the soil sample bottle 4 at the corresponding position, and the two pressure measuring tubes 3 are located on the same horizontal plane.

[0029] The display board 1 is evenly distributed with a plurality of limiting holes, similar to a perforated board. The Malliot bottle 2, the soil sample bottle 4 and the pressure measuring tube 3 are all detachably mounted on the display board 1 by means of a fixing clip, so as to facilitate disassembly and installation.

[0030] The display board 1 is provided with a base 9, and at least two universal wheels 11 are provided at the lower end of the base 9 to facilitate the movement of the entire measuring instrument.

[0031] The outer walls of the pressure measuring tube 3 and the soil sample holding bottle 4 are both provided with scales 15. The pressure measuring tube 3 is an organic glass pressure measuring tube 3, and the soil sample holding bottle 4 is an organic glass holding bottle. Organic glass products can facilitate observation of the amount of water in the tube or bottle, and facilitate reading of the scale 15. The bottom of the soil sample holding bottle 4 is paved with filter paper 17, and the top of the filter paper 17 is used to hold the soil sample 16. The setting of the filter paper 17 can prevent the soil sample from blocking the pipe mouth when draining water, and prevent the soil sample 16 from flowing out too much and affecting the test results.

[0032] The fixing clamp 5 includes a fixing clamp body 18, which is a ring clamp with a notch. The number of the ring clamps is multiple and the inner diameters are different. The inner diameters of the fixing clamp body 18 are respectively the same as the outer diameters of the Malliot bottle 2, the outer diameters of the soil sample bottle 4 and the outer diameters of the pressure measuring tube 3. Elastic anti-skid pads are provided on the inner walls of the two ends of the fixing clamp body 18, which are used to fix the Malliot bottle 2, the soil sample bottle 4 and the pressure measuring tube 3 respectively to prevent them from sliding down. The outer center of the fixing clamp body 18 is connected to a fixing ball 19 through a connecting rod (not marked with a figure mark). The fixing ball 19 is used to be inserted into the limiting hole of the display board 1. The fixing ball 19 can be an elastic fixing ball 19, which is squeezed and deformed when inserted into the limiting hole, and is limited by the connecting rod after passing through the display board 1. The elastic anti-skid pad and the elastic fixing ball 19 can both be rubber balls or other materials with elastic properties. The fixing clamp 5 itself can be replaced after being damaged by long-term use. Alternatively, the fixing clip 5 may also be a binding belt, which can bind the Mariotte bottle 2 , the soil sample bottle 4 and the pressure measuring tube 3 to the display board 1 .

[0033] The zero mark 15 of the scale 15 on the soil sample holding bottle 4 is flush with the bottom inner wall. When the thickness of the filter paper 17 is too thick, the reading can be read through the difference of the scale 15. When the thickness of the filter paper 17 is too thin, it can be ignored. The thickness of the filter paper 17 can be determined according to the particle size of the soil sample 16 or the mesh number of the filter paper 17, and water can pass through.

[0034] A drain pipe is provided at the bottom of the Marriott bottle 2 for conveniently draining the water in the Marriott bottle 2 .

[0035] The branch water inlet pipe 6, the four-way pipe 7, the three-way pipe 8, the soil sample bottle connecting pipe 13, the soil sample bottle drain pipe 14, the Marriott bottle drain pipe 20 and the main water inlet pipe 21 are all transparent hoses, which are convenient for observing the drainage or injection situation, and can be used to observe whether or where there is a blockage, so as to facilitate subsequent unblocking.

[0036] The Marriott bottle 2 is a device based on the principle of communicating vessels, which makes the pressure inside and outside the container consistent, thereby achieving constant water head and automatic water replenishment in the Marriott bottle 2. Specifically, the Marriott bottle 2 may include: a Marriott bottle body (not marked in the figure), which is provided with a bottle mouth; an elastic sealing plug (not marked in the figure), which is installed in the bottle mouth and has radial pressure on the bottle mouth; an air inlet capillary (not marked in the figure), the upper end of which is an air inlet, the lower end is an air outlet, and the end face that passes through the elastic sealing plug is placed in the Marriott bottle 2 body, and the air inlet is connected to the inner cavity of the Marriott bottle 2 body. In the embodiment of the present application, the height of the air outlet can be adjusted by pulling the air inlet capillary up and down, and the water infiltration head can be adjusted by changing the position of the air outlet height, so that the Marriott bottle 2 can supply water to the soil sample holding bottle 4 according to the preset water head, so that the user can complete the capillary water rise height measurement test under the water head. As to how to adjust the water infiltration head between the Malliot bottle 2 and the soil sample container 4, reference may be made to the prior art, which will not be described in detail here.

[0037] The testing process is:

[0038] First, in order to prevent the test soil from being discharged with water during drainage, it is necessary to lay filter paper 17 at the bottom of the soil sample bottle 4, and then according to the test plan requirements, take two groups of test soil samples of the same mass and put them into two soil sample bottles 4 respectively, and compact them in layers. In order to improve the test efficiency, it can be soaked with water after compaction in layers, of course, it has not reached the saturated state at this time. Then, connect the various pipes of the entire device to ensure its sealing.

[0039] Next, the flow valve on the water discharge pipe at the lower end of the four-way pipe 7 is closed, and the flow valves on the main water inlet pipe 21, the soil sample bottle connecting pipe 13 and the two branch water inlet pipes 6 are opened. The water in the Marriott bottle 2 sequentially passes through the Marriott bottle water discharge pipe 20, the two main water inlet pipes 21, the two four-way pipes 7, the two soil sample bottle connecting pipes 13 and the branch water inlet pipes 6 into the two soil sample bottles 4 and the two pressure measuring tubes 3. After observing that the soil sample is saturated, the flow valves on the two main water inlet pipes 21 are closed, and the first liquid level in the pressure measuring tube 3 is recorded;

[0040] Then open the flow valve on the soil sample drain pipe 14 at the lower end of the four-way pipe 7, and the water in the soil sample bottle 4 begins to be discharged due to gravity. At this time, the liquid level in the pressure measuring tube 3 also begins to drop. Due to the capillary effect of the soil, the water in the soil sample bottle 4 will no longer seep after dropping to a certain extent. At this time, the liquid level in the pressure measuring tube 3 is stabilized and the second liquid level is read. The liquid level difference is calculated based on the liquid levels on both sides to obtain the capillary water rising height.

[0041] By setting up two symmetrical soil sample bottles 4 and pressure measuring tubes 3, two groups of measurements can be completed at the same time. A more accurate measurement result can be obtained by taking the average value of the two groups of measurement results. If the two groups of measurement results differ greatly, re-measurement can be performed after checking that the sealing of the device is correct to avoid large errors in measurement. The two groups of measurement results can also be divided into a test group and a control group to obtain a more accurate comparison of the test results.

[0042] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art of the utility model may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. An instrument for measuring the height of capillary water rise, characterized in that: The invention comprises a display board (1) and a Marriott bottle (2) detachably connected to the display board (1), two soil sample bottles (4) and two pressure measuring tubes (3), wherein the bottom of the Marriott bottle (2) is connected to the water inlet of a Marriott bottle water discharge pipe (20), the water outlet of the Marriott bottle water discharge pipe (20) is communicated with the upper pipe opening of a three-way pipe (8), the two side pipe openings of the horizontal side of the three-way pipe (8) are respectively connected to the water inlet of a main water inlet pipe (21), the water outlet of each main water inlet pipe (21) is connected to one side pipe opening of the horizontal side of a four-way pipe (7), the upper side pipe opening of the four-way pipe (7) is connected to a soil sample bottle connecting pipe (13), the soil sample bottle connecting pipe (13) is connected to the soil sample bottle (4), and the four-way pipe (8) is connected to the soil sample bottle (4). The lower side pipe opening of the pipe (7) is connected to the water inlet of the soil sample bottle drain pipe (14), the other side pipe opening of the horizontal side of the four-way pipe (7) is connected to the inlet end of the branch water inlet pipe (6), the outlet end of the branch water inlet pipe (6) is connected to the pressure measuring pipe (3), the main water inlet pipe (21), the water inlet end of the branch water inlet pipe (6), the end of the soil sample bottle connecting pipe (13) and the soil sample bottle drain pipe (14) are all provided with flow valves, two soil sample bottles (4) are symmetrically and parallelly arranged on both sides below the Malliot bottle (2), and the two soil sample bottles (4) are located on the same horizontal plane, and two pressure measuring pipes (3) are symmetrically and parallelly arranged on the outside of the soil sample bottles (4) at corresponding positions, and the two pressure measuring pipes (3) are located on the same horizontal plane.

2. The capillary water rise height measuring instrument according to claim 1, characterized in that: The upper end port of the soil sample containing bottle (4) is lower than the bottom end of the Mariotte bottle (2) or is flush with the bottom end of the Mariotte bottle (2).

3. The capillary water rise height measuring instrument according to claim 2, characterized in that: The display board (1) is evenly distributed with a plurality of limiting holes, and the Malliot bottle (2), the soil sample container bottle (4) and the pressure measuring tube (3) are all detachably mounted on the display board (1) via a fixing clamp (5).

4. The capillary water rise height measuring instrument according to claim 3, characterized in that: The display board (1) is provided with a base (9), and the lower end of the base (9) is provided with at least two universal wheels (11).

5. The capillary water rise height measuring instrument according to claim 4, characterized in that: The outer walls of the pressure measuring tube (3) and the soil sample containing bottle (4) are both provided with scales (15).

6. The capillary water rise height measuring instrument according to claim 4, characterized in that: The pressure measuring tube (3) is a plexiglass pressure measuring tube, and the soil sample containing bottle (4) is a plexiglass containing bottle.

7. The capillary water rise height measuring instrument according to claim 6, characterized in that: The fixing clamp (5) comprises a fixing clamp body (18), which is an annular clamp provided with a notch. The inner diameter of the fixing clamp body (18) is respectively the same as the outer diameter of the Malliot bottle (2), the outer diameter of the soil sample container (4) and the outer diameter of the pressure measuring tube (3). Elastic anti-skid pads are provided on the inner walls of the two ends of the fixing clamp body (18), and the outer center of the fixing clamp body (18) is connected to a fixing ball (19) via a connecting rod.

8. The capillary water rise height measuring instrument according to claim 7, characterized in that: The fixing ball (19) may be a rubber fixing ball.

9. The capillary water rise height measuring instrument according to claim 8, characterized in that: The zero mark (15) of the scale (15) on the soil sample container (4) is flush with the inner wall of the bottom.

10. The capillary water rise height measuring instrument according to claim 9, characterized in that: The bottom of the Mariotte bottle (2) is provided with a water discharge pipe.

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