An infiltration test device for hydrogeological investigation

Abstract

The present application relates to a water seepage test device for hydrogeological exploration, belonging to the technical field of hydrogeological exploration. It includes a support frame, a double-ring frame, an adjustment component, a pressure application component, and a drainage component. The double-ring frame is arranged on the support frame; the adjustment component includes an adjustment part and a locking part. The adjustment part is arranged on the support frame and is used to adjust the horizontal state of the double-ring frame; the locking part is arranged on the support frame and is used to lock the adjustment state of the adjustment part; the pressure application component is arranged on the support frame and is used to press the double-ring frame into the ground; the drainage component is arranged on the support frame and is used to add water into the double-ring frame for water seepage test. The present application has the effect of improving the accuracy of test results.

Description

Technical Field

[0001] This application relates to the technical field of hydrogeological exploration, and particularly to a seepage test device for hydrogeological exploration. Background Art

[0002] Hydrogeological exploration is an essential and indispensable link in modern engineering construction and environmental protection. By accurately measuring the flow characteristics of groundwater, the permeability of the formation can be effectively evaluated, providing a scientific basis for engineering design and construction.

[0003] Currently, a general seepage test device includes a support frame, a sample container, and a water storage tank. The sample container is arranged on the support frame and is used to hold the soil sample to be tested. The sample container is made of a transparent material; the water storage tank is arranged on the support frame and is connected to the sample container through a conduit; a scale is arranged inside the sample container to facilitate directly reading the liquid level height.

[0004] However, during the test process of the above device, it is difficult to accurately control the water pressure by relying on the gravity water supply method, resulting in poor repeatability and reliability of the experimental results and affecting the accuracy of the test results. Summary of the Invention

[0005] In order to improve the accuracy of the test results, this application provides a seepage test device for hydrogeological exploration.

[0006] A seepage test device for hydrogeological exploration provided by this application adopts the following technical solutions:

[0007] A seepage test device for hydrogeological exploration includes:

[0008] A support frame;

[0009] A double-ring frame arranged on the support frame;

[0010] An adjustment assembly, including:

[0011] An adjustment part arranged on the support frame and used to adjust the horizontal state of the double-ring frame;

[0012] A locking part arranged on the support frame and used to lock the adjusted state of the adjustment part;

[0013] A pressure application assembly arranged on the support frame and used to press the double-ring frame into the ground;

[0014] A drainage assembly arranged on the support frame and used to add water into the double-ring frame for a seepage test.

[0015] By adopting the above technical solution, when the support frame is placed on the test ground, the adjusting part can accurately adjust the horizontal state of the double-ring frame. After adjustment, the locking part fixes the adjusted state of the adjusting part to prevent the position of the double-ring frame from changing due to external factors during the test, ensuring that the double-ring frame can remain horizontal during the infiltration test, thus eliminating the error caused by the inclination of the device and further ensuring the accuracy of the test;

[0016] Then, the pressing component can press the double-ring frame into the ground to a predetermined depth, and the drainage component adds water into the double-ring frame to conduct the infiltration test. Through the coordinated action of the adjusting component and the pressing component, it can adapt to soil conditions with different hardness and depths.

[0017] Optionally, the adjusting part includes:

[0018] A fixed plate, fixedly arranged on the support frame and provided with a rotating hole;

[0019] Two limiting blocks, which are arranged opposite to each other and are both fixedly arranged in the rotating hole. Among them, a sliding groove is provided on the limiting block;

[0020] Two internal ratchets, which are stacked and fixed, and are both rotatably connected in the rotating hole. The two internal ratchets are located in the sliding groove, and the arrangement directions of their ratchet teeth are opposite. The internal ratchet is connected to the double-ring frame through the pressing component;

[0021] Two pawls, which correspond to the two internal ratchets one by one. The pawl is engaged with the internal ratchet. Among them, a bearing spring is fixedly arranged between the pawl and the support frame.

[0022] By adopting the above technical solution, when the double-ring frame tilts to one side, under the action of gravity, the double-ring frame drives the internal ratchet to rotate. When the double-ring frame is in a horizontal state, the pawl will automatically engage with the ratchet teeth of the internal ratchet to prevent it from rotating back, thus ensuring the stability of the double-ring frame during the test;

[0023] Through the design of stacking and fixing two internal ratchets with opposite ratchet tooth arrangement directions, two-way adjustment of the horizontal state of the double-ring frame can be achieved, thus greatly improving the flexibility and accuracy of adjustment.

[0024] Optionally, two groups of locking parts are provided, and the two groups of locking parts correspond to the two pawls one by one. The locking part includes:

[0025] A water storage box, fixedly arranged on the fixed plate;

[0026] An adjusting telescopic rod, fixedly arranged on the fixed plate, and its rod cavity is communicated with the water storage box. Among them, a return spring is fixedly arranged in the rodless cavity of the adjusting telescopic rod;

[0027] The pressurizing box is fixedly arranged on the fixed plate;

[0028] The sliding plate is slidably connected in the pressurizing box. The movable end of the adjusting telescopic rod penetrates through the pressurizing box and is fixedly connected to the sliding plate;

[0029] The corrugated pipe is fixedly connected to the ratchet pawl and the support frame at both ends respectively. The pressure-bearing spring is located inside the corrugated pipe. The corrugated pipe is communicated with the pressurizing box, and the communication position is on the side of the sliding plate away from the adjusting telescopic rod.

[0030] By adopting the above technical solution, when the double-ring frame tilts to one side, the fixed plate drives the water storage box to tilt. Since the rodless cavity of the adjusting telescopic rod is communicated with the water storage box, the water in the water storage box flows into the rodless cavity of the adjusting telescopic rod. The water squeezes the movable end of the adjusting telescopic rod to retract. The movable end of the adjusting telescopic rod drives the sliding plate to slide, increasing the pressure in the pressurizing box, sucking the water in the corrugated pipe into the pressurizing box, compressing the space inside the corrugated pipe, so that the ratchet pawl and the internal ratchet can be locked;

[0031] At the same time, the water in the other water storage box flows back from the rodless cavity of the other adjusting telescopic rod. Under the elastic force of the return spring, the movable end of the other adjusting telescopic rod resets, so that the other sliding plate resets, reducing the pressure in the other pressurizing box, squeezing the water back into the corrugated pipe, releasing the space inside the corrugated pipe, so that the other ratchet pawl and the other internal ratchet are disengaged, thus facilitating the switching of the locked state of the ratchet pawl, and further ensuring the safety of the water seepage test device.

[0032] Optionally, the pressing component includes:

[0033] The electric telescopic rod, the fixed end of which is fixedly connected to the internal ratchet, and the movable end of which is connected to the double-ring frame;

[0034] The reinforcing plate, one side of which is fixedly connected to the movable end of the electric telescopic rod, and the other side of which is fixedly connected to the double-ring frame.

[0035] By adopting the above technical solution, when the double-ring frame is adjusted to the horizontal state, the electric telescopic rod is started through an external control source. The movable end of the electric telescopic rod drives the reinforcing plate to press down, and the reinforcing plate presses the double-ring frame into the test ground, thus greatly simplifying the operation process of the water seepage test, and further improving the test efficiency.

[0036] Optionally, the double-ring frame includes:

[0037] The outer ring, which is fixedly connected to the reinforcing plate;

[0038] The inner ring, which is fixedly connected to the reinforcing plate;

[0039] Web plates are provided in plurality, and the plurality of web plates are arranged in the axial direction of the inner ring. The web plates are fixedly connected to the outer ring and the inner ring.

[0040] Wherein, water seepage holes are formed in the web plates.

[0041] By adopting the above technical solutions, during the test, water is added to the inner ring and the annular space between the inner and outer rings respectively. The inner ring is used to control the experimental area, while the outer ring ensures that the solution in the inner ring vertically infiltrates downward, and at the same time reduces lateral seepage. By measuring the amount of water infiltrating per unit surface area per unit time (i.e., the infiltration rate) and combining with Darcy's law, the vertical infiltration coefficient of the soil can be calculated.

[0042] Optionally, the drainage assembly includes:

[0043] A water adding tank fixedly arranged on the reinforcing plate;

[0044] Two drain pipes are provided. Both of the two drain pipes are communicated with the water adding tank and are respectively located inside and outside the inner ring;

[0045] Wherein, electromagnetic valves are arranged on the drain pipes.

[0046] By adopting the above technical solutions, the electromagnetic valves are opened through an external control source, and the water in the water adding tank is used to add water to the inner ring and the annular space between the inner and outer rings respectively. The accurate adjustment of the drainage flow rate makes it easier to more accurately simulate the actual groundwater seepage situation.

[0047] Optionally, one end of the inner ring and the outer ring close to the ground are both wedge-shaped.

[0048] By adopting the above technical solutions, when the pressure application assembly presses down the double-ring frame, due to the wedge-shaped design, the inner ring and the outer ring can be more easily cut into the soil during burial, thus facilitating the reduction of the burial difficulty.

[0049] Optionally, the bottom end of the support frame is cone-shaped.

[0050] By adopting the above technical solutions, the support frame can be more easily inserted into the soil, especially in soft or sandy soil, thus simplifying the installation process, and further reducing the installation time and labor cost.

[0051] In summary, the present application includes at least one of the following beneficial technical effects:

[0052] By providing the adjusting part and the locking part, it is ensured that the double-ring frame can be kept horizontal during the water seepage test, thus eliminating the errors caused by the inclination of the device, and further ensuring the accuracy of the test;

[0053] By setting the pressure - applying component, the movable end of the electric telescopic rod drives the reinforcement plate to press downwards, and the reinforcement plate presses the double - ring frame into the test ground, thus greatly simplifying the operation process of the water - seepage test and then improving the test efficiency.

[0054] By setting the drainage component, water is added to the inner ring and the annular space between the inner and outer rings respectively through the drain pipe, and the drainage flow rate is precisely adjusted, so as to more accurately simulate the actual groundwater seepage situation. Brief Description of the Drawings

[0055] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0056] Figure 2 is a cross - sectional view of the double - ring frame in an embodiment of the present application;

[0057] Figure 3 is a cross - sectional view of the locking part in an embodiment of the present application;

[0058] Figure 4 is a cross - sectional view for showing the internal structure of the corrugated pipe in an embodiment of the present application.

[0059] Description of the Reference Numerals:

[0060] 1. Support frame; 11. Handle; 2. Double - ring frame; 21. Outer ring; 22. Inner ring; 23. Web; 231. Water - seepage hole; 3. Adjustment component; 31. Adjustment part; 311. Fixed plate; 3111. Rotation hole; 3112. Pressure cone; 312. Limit block; 313. Inner ratchet; 314. Pawl; 315. Bearing spring; 32. Locking part; 321. Water storage box; 322. Adjustment telescopic rod; 3221. Conduit; 3222. Return spring; 323. Booster box; 324. Slide plate; 325. Corrugated pipe; 4. Pressure - applying component; 41. Electric telescopic rod; 42. Reinforcement plate; 5. Drainage component; 51. Water - adding tank; 511. Inner box; 512. Outer box; 52. Drain pipe; 53. Solenoid valve. Detailed Embodiment

[0061] The following further elaborates on the present application in conjunction with the attached Figures 1-4 drawings for a more detailed description.

[0062] An embodiment of the present application discloses a water - seepage test device for hydro - geological exploration. Referring to Figure 1 , a water - seepage test device for hydro - geological exploration includes a support frame 1, a double - ring frame 2, an adjustment component 3, a pressure - applying component 4 and a drainage component 5. The double - ring frame 2 is arranged on the support frame 1; the adjustment component 3 is arranged on the support frame 1 and is used to adjust the horizontal state of the double - ring frame 2; the pressure - applying component 4 is arranged on the support frame 1 and is used to press the double - ring frame 2 into the ground; the drainage component 5 is arranged on the support frame 1 and is used to add water into the double - ring frame 2 for the water - seepage test.

[0063] In use, place the support frame 1 on the test site. First, the adjusting assembly 3 adjusts the horizontal state of the double-ring frame 2, and then, the pressing assembly 4 presses the double-ring frame 2 into the ground to a predetermined depth. Then, the drainage assembly 5 adds water into the double-ring frame 2 to conduct a seepage test, thereby facilitating the improvement of the accuracy of the test results.

[0064] Refer to Figure 1 and Figure 2 As shown in

[0065] In use, place the support frame 1 on the test site, insert the pressure cone 3112 into the ground. During the test, the drainage assembly 5 adds water into the inner ring 22 and the annular space between the inner and outer rings 21 respectively, so that the vertical permeability coefficient of the soil can be calculated, and thus it is easy to complete the seepage test.

[0066] Refer to Figure 1 、 Figure 3 and Figure 4 As shown in

[0067] Refer to Figure 1 As shown in

[0068] There are two limit blocks 312, which are arranged opposite to each other and are both fixed in the rotation hole 3111. The limit block 312 is in an arc shape and is provided with a sliding groove.

[0069] Refer to Figure 1 and Figure 3, there are two internal ratchets 313, which are stacked and fixed, and are both rotatably connected in the rotation hole 3111. The two internal ratchets 313 are located in the chute, and the arrangement directions of their ratchet teeth are opposite. The internal ratchet 313 is connected to the double-ring frame 2 through the pressing component 4.

[0070] Refer to Figure 3 and Figure 4 , there are two pawls 314, and the two pawls 314 correspond to the two internal ratchets 313 one by one. The pawl 314 is engaged with the internal ratchet 313. A pressure-bearing spring 315 is fixedly arranged between the pawl 314 and the fixing plate 311. In the initial state, the pressure-bearing spring 315 is in a stretched state.

[0071] Refer to Figure 1 , Figure 3 and Figure 4 , there are two sets of locking parts 32, and the two sets of locking parts 32 correspond to the two pawls 314 one by one. The locking part 32 includes a water storage box 321, an adjusting telescopic rod 322, a pressurizing box 323, a sliding plate 324 and a corrugated pipe 325. The water storage box 321 is fixedly arranged on the fixing plate 311.

[0072] Refer to Figure 1 , the adjusting telescopic rod 322 is fixedly arranged on the fixing plate 311, and a rod cavity is communicated with the water storage box 321 through a conduit 3221. The adjusting telescopic rod 322 and the water storage box 321 are filled with water through the conduit 3221. A return spring 3222 is fixedly arranged in the rodless cavity of the adjusting telescopic rod 322. The two ends of the return spring 3222 are respectively fixedly connected to the fixed end and the movable end of the adjusting telescopic rod 322. In the initial state, the return spring 3222 is in a stretched state.

[0073] Refer to Figure 1 and Figure 3 , the pressurizing box 323 is in the shape of a rectangular box and is horizontally arranged. The adjusting telescopic rod 322 is fixedly arranged on the fixing plate 311. The sliding plate 324 is slidably connected in the pressurizing box 323, and the sliding direction is the length direction of the pressurizing box 323. The movable end of the adjusting telescopic rod 322 passes through the pressurizing box 323 and is fixedly connected to the sliding plate 324.

[0074] Refer to Figure 3 and Figure 4 , the two ends of the corrugated pipe 325 are respectively fixedly connected to the pawl 314 and the fixing plate 311. The pressure-bearing spring 315 is located inside the corrugated pipe 325. The corrugated pipe 325 is communicated with the pressurizing box 323, and the communication position is on the side of the sliding plate 324 away from the adjusting telescopic rod 322.

[0075] During use, when the double-ring frame 2 tilts to one side, the double-ring frame 2 drives the inner ratchet wheel 313 to rotate, bringing the double-ring frame 2 to a horizontal state. At the same time, the fixing plate 311 drives the water storage box 321 to tilt, and the water in the water storage box 321 flows into the rod cavity of the adjusting telescopic rod 322. The water squeezes the movable end of the adjusting telescopic rod 322 to retract, and the movable end of the adjusting telescopic rod 322 drives the sliding plate 324 to slide, increasing the pressure in the pressurizing box 323. The water in the corrugated pipe 325 is sucked into the pressurizing box 323, enabling the ratchet pawl 314 and the inner ratchet wheel 313 to be locked;

[0076] At the same time, the water in the other water storage box 321 flows back from the rod cavity of the other adjusting telescopic rod 322. Under the elastic force of the return spring 3222, the movable end of the other adjusting telescopic rod 322 resets, causing the other sliding plate 324 to reset, reducing the pressure in the other pressurizing box 323, squeezing the water back into the corrugated pipe 325, releasing the space in the corrugated pipe 325, and enabling the other ratchet pawl 314 to disengage from the other inner ratchet wheel 313;

[0077] Conversely, when the double-ring frame 2 tilts to the other side, the flow directions of the water in the two water storage boxes 321 are opposite, enabling adjustment and locking in the opposite direction, thus facilitating the switching of the locked state of the ratchet pawl 314, and further ensuring the safety of the water seepage test device.

[0078] Refer to Figure 1 , the pressing component 4 includes an electric telescopic rod 41 and a reinforcing plate 42. The fixed end of the electric telescopic rod 41 is fixedly connected to the inner ratchet wheel 313, one side of the reinforcing plate 42 is fixedly connected to the movable end of the electric telescopic rod 41, and the other side is fixedly connected to the double-ring frame 2.

[0079] During use, when the double-ring frame 2 is adjusted to a horizontal state, the electric telescopic rod 41 is started through an external control source. The movable end of the electric telescopic rod 41 drives the reinforcing plate 42 to press down, and the reinforcing plate 42 presses the double-ring frame 2 into the test ground, thus greatly simplifying the operation process of the water seepage test and further improving the test efficiency.

[0080] Refer to Figure 1 and Figure 2 , the drainage component 5 includes a water addition tank 51 and a drain pipe 52. There are two water addition tanks 51, which are symmetrically arranged and fixedly provided on the reinforcing plate 42. The inside of the water addition tank 51 is divided into an inner tank 511 and an outer tank 512 by a partition plate. There are two drain pipes 52, which are respectively connected to the inner tank 511 and the outer tank 512 through straight pipes and are respectively located inside and outside the inner ring 22. The drain pipe 52 is annular and is provided with drip holes. Among them, a solenoid valve 53 is provided on the straight pipe.

[0081] During use, the solenoid valve 53 is opened through an external control source, and the water in the water addition tank 51 is added to the inner ring 22 and the annular space between the inner and outer rings 21 respectively through the drain pipe 52, and the drainage flow rate is precisely adjusted, so that it is easier to more accurately simulate the actual groundwater seepage situation.

[0082] The implementation principle of the seepage test device for hydrogeological exploration in an embodiment of the present application is as follows: The support frame 1 is placed on the test ground, and the pressure cone 3112 is inserted into the ground. When the double-ring frame 2 tilts to one side, the double-ring frame 2 drives the inner ratchet wheel 313 to rotate, so that the double-ring frame 2 is in a horizontal state. At the same time, the fixed plate 311 drives the water storage box 321 to tilt, and the water in the water storage box 321 flows into the rod cavity of the adjusting telescopic rod 322. The water squeezes the movable end of the adjusting telescopic rod 322 to retract. The movable end of the adjusting telescopic rod 322 drives the sliding plate 324 to slide, increasing the pressure in the pressure increasing box 323, sucking the water in the corrugated pipe 325 into the pressure increasing box 323, so that the pawl 314 and the inner ratchet wheel 313 can be locked;

[0083] At the same time, the water in the other water storage box 321 flows back from the rod cavity of the other adjusting telescopic rod 322. Under the elastic force of the return spring 3222, the movable end of the other adjusting telescopic rod 322 resets, so that the other sliding plate 324 resets, reducing the pressure in the other pressure increasing box 323, squeezing the water back into the corrugated pipe 325, releasing the space in the corrugated pipe 325, so that the other pawl 314 and the other inner ratchet wheel 313 are disengaged;

[0084] On the contrary, when the double-ring frame 2 tilts to the other side, the water flow directions in the two water storage boxes 321 are opposite, so that the reverse adjustment and locking can be realized, so that it is easy to realize the switching of the locked state of the pawl 314, and further ensure the safety of the seepage test device;

[0085] After the double-ring frame 2 is in a horizontal state, the movable end of the electric telescopic rod 41 drives the reinforcing plate 42 to press down. The reinforcing plate 42 presses the double-ring frame 2 into the test ground. The water in the water addition tank 51 is added to the inner ring 22 and the annular space between the inner and outer rings 21 respectively through the drain pipe 52, and the drainage flow rate is precisely adjusted, so that it is easier to more accurately simulate the actual groundwater seepage situation.

[0086] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A water seepage test device for hydrogeological exploration, characterized in that, Comprising: Support frame (1); Double-ring frame (2), arranged on the support frame (1); Adjustment assembly (3), including: Adjustment part (31), arranged on the support frame (1) and used for adjusting the horizontal state of the double-ring frame (2); Locking part (32), arranged on the support frame (1) and used for locking the adjustment state of the adjustment part (31); Pressing assembly (4), arranged on the support frame (1) and used for pressing the double-ring frame (2) into the ground; Drainage assembly (5), arranged on the support frame (1) and used for adding water into the double-ring frame (2) to conduct a seepage test; The adjustment part (31) includes: Fixed plate (311), fixedly arranged on the support frame (1) and provided with a rotation hole (3111); Limit blocks (312), two in number, the two limit blocks (312) are arranged opposite to each other and are both fixedly arranged in the rotation hole (3111). Among them, a sliding groove is provided on the limit block (312); Inner ratchets (313), two in number, the two inner ratchets (313) are stacked and fixed and are both rotatably connected in the rotation hole (3111). The two inner ratchets (313) are located in the sliding groove, and the arrangement directions of their ratchet teeth are opposite. The inner ratchet (313) is connected to the double-ring frame (2) through the pressing assembly (4); Pawl (314), two in number, the two pawls (314) correspond to the two inner ratchets (313) one by one. The pawl (314) is engaged with the inner ratchet (313). Among them, a bearing spring (315) is fixedly arranged between the pawl (314) and the support frame (1); The locking part (32) is provided with two groups, and the two groups of locking parts (32) correspond to the two pawls (314) one by one. The locking part (32) includes: Water storage box (321), fixedly arranged on the fixed plate (311); Adjustable telescopic rod (322), fixedly arranged on the fixed plate (311), and its rod cavity is communicated with the water storage box (321). Among them, a return spring (3222) is fixedly arranged in the rodless cavity of the adjustable telescopic rod (322); Booster box (323), fixedly arranged on the fixed plate (311); Slide plate (324), slidably connected in the booster box (323). The movable end of the adjustable telescopic rod (322) penetrates through the booster box (323) and is fixedly connected to the slide plate (324); Bellows (325), fixedly connected to the pawl (314) and the support frame (1) at both ends respectively. The bearing spring (315) is located inside the bellows (325). The bellows (325) is communicated with the booster box (323), and the communication part is located on the side of the slide plate (324) away from the adjustable telescopic rod (322).

2. The water seepage test device for hydrogeological exploration according to claim 1, wherein, The pressing assembly (4) includes: Electric telescopic rod (41), the fixed end of which is fixedly connected to the inner ratchet (313), and the movable end of which is connected to the double-ring frame (2); The reinforcing plate (42) is fixedly connected to the movable end of the electric telescopic rod (41) on one side and to the double-ring frame (2) on the other side.

3. The water seepage test device for hydrogeological exploration according to claim 2, characterized in that, The double-ring frame (2) includes: An outer ring (21), fixedly connected to the reinforcing plate (42); An inner ring (22), fixedly connected to the reinforcing plate (42); Webs (23), there are a plurality of them, and the plurality of webs (23) are arranged along the axial direction of the inner ring (22), and the webs (23) are fixedly connected to the outer ring (21) and the inner ring (22); Wherein, water seepage holes (231) are formed in the webs (23).

4. The water seepage test device for hydrogeological exploration according to claim 3, characterized in that, The drainage assembly (5) includes: A water addition tank (51), fixedly arranged on the reinforcing plate (42); Drain pipes (52), there are two of them, and both of the two drain pipes (52) are communicated with the water addition tank (51) and are respectively located inside and outside the inner ring (22); Wherein, solenoid valves (53) are arranged on the drain pipes (52).

5. The water seepage test device for hydrogeological exploration according to claim 3, characterized in that, The ends of the inner ring (22) and the outer ring (21) close to the ground are both wedge-shaped.

6. The water seepage test device for hydrogeological exploration according to claim 1, characterized in that, The bottom end of the support frame (1) is conical.

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