In-situ groundwater permeability coefficient tester for different lithology

Abstract

This utility model provides an in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies, belonging to the technical field of permeability coefficient measuring devices. It addresses the problem that existing equipment often uses fixed pressure and flow rates for water supply, failing to consider the differences in permeability capacity among different lithologies, and the fixed parameters cannot adapt to local permeability characteristics, thus affecting measurement accuracy. The instrument includes a load-bearing base, a load-bearing bottom frame, load-bearing side frames, a load-bearing top column, and a load-bearing top seat. The load-bearing bottom column is fixedly mounted on the top of the load-bearing base. The load-bearing bottom frame is fitted onto the side of the load-bearing bottom column. The load-bearing side frames are fixedly mounted on the sides of the load-bearing bottom frame and the load-bearing top frame. The load-bearing top column is fixedly mounted on the top of the load-bearing top column. A pressure-applying support, in conjunction with a counterweight ring, applies a fixed pressure to the groundwater being measured. The measuring device detects the amount of permeable water carried by the load-bearing support cylinder below different lithological materials, thereby determining the permeability coefficient of groundwater for different lithologies.

Description

Technical Field

[0001] This utility model belongs to the technical field of permeability coefficient measuring devices, and more specifically, it relates to an in-situ groundwater permeability coefficient measuring instrument adapted to different rock types. Background Technology

[0002] Groundwater permeability coefficient is a key parameter for groundwater development and utilization, geological disaster prevention and control, and engineering construction. The accuracy and efficiency of its in-situ measurement directly affect the quality of exploration work. At the same time, groundwater permeability coefficient is a core parameter for assessing groundwater resource reserves, pollution migration patterns, and engineering seepage resistance design. The accuracy of its in-situ measurement directly affects the reliability of exploration results.

[0003] Based on the above, existing equipment mostly uses fixed pressure and flow rate for water supply, without considering the differences in permeability of different rock types. Clayey soil has high permeability resistance, and a fixed high flow rate can easily lead to water level accumulation in the borehole. Sandy layers have fast permeability, and a fixed low flow rate can easily lead to excessively long data acquisition cycles. In fractured bedrock, the fractures are unevenly developed, and fixed parameters cannot be adapted to local permeability characteristics, affecting the accuracy of the measurement. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies. This addresses the issues that existing equipment often uses fixed pressure and flow rate for water supply, failing to consider the differences in permeability among different lithologies. For example, cohesive soils have high permeability resistance, and a fixed high flow rate can easily lead to water level accumulation in the borehole. Sand layers have fast permeability, and a fixed low flow rate can easily lead to excessively long data acquisition cycles. Furthermore, fractured bedrock has uneven fracture development, and fixed parameters cannot adapt to local permeability characteristics, thus affecting the accuracy of the measurement.

[0005] This utility model relates to an in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies, achieved through the following specific technical means: The in-situ groundwater permeability coefficient measuring instrument, which is compatible with different lithologies, consists of the following core components: a load-bearing base, a load-bearing bottom frame, a load-bearing side frame, a load-bearing top column, and a load-bearing top seat. The load-bearing base is fixedly equipped with a load-bearing bottom column at its top, and a locking support groove is provided on the side of the load-bearing bottom column; the load-bearing bottom frame is sleeved on the side of the load-bearing bottom column, and a load-bearing top frame is provided at the top of the load-bearing bottom frame; locking blocks are fixedly equipped on both sides of the load-bearing bottom frame, and locking bolts are provided on the side of the locking blocks; a detection frame is fixedly equipped on the side of the load-bearing bottom frame and the load-bearing top frame; a load-bearing side frame is fixedly equipped on the side of the load-bearing bottom frame and the load-bearing top frame; a connecting side tube is fixedly equipped on the inner side of the load-bearing side frame; a locking pressure frame is provided on the side of the load-bearing side frame; and a load-bearing support cylinder is provided on the side of the load-bearing side frame; the load-bearing top column is fixedly equipped at the top of the load-bearing bottom column, and a sliding groove is provided on the side of the load-bearing top column; a sliding support column is fixedly equipped on the inner side of the sliding groove; a guide support column is slidably sleeved on the outer side of the sliding support column; and a threaded connector is fixedly equipped on the inner side of the guide support column; the load-bearing top seat is fixedly equipped at the top of the load-bearing top column, and a connecting groove is provided on the side of the load-bearing top seat; and a mounting bracket is provided at the top of the load-bearing top seat.

[0006] Furthermore, the top of the load-bearing base is also provided with: a threaded support column, a threaded sleeve, and a detection device; the threaded support column is fixedly installed on the top of the load-bearing base, the threaded sleeve is sleeved on the outside of the threaded support column, and the detection device is fixedly installed on the top of the threaded sleeve.

[0007] Furthermore, the side of the detection frame is also provided with a connecting support ring and a closed groove; the connecting support ring is fixedly disposed inside the detection frame, and the closed groove is opened on the side of the connecting support ring.

[0008] Furthermore, the side of the bearing support cylinder is also provided with a connecting support and a sealing airbag; the connecting support is fixedly installed on the side of the bearing support cylinder, and the sealing airbag is fixedly installed on the side of the connecting support.

[0009] Furthermore, the threaded connector is also provided with the following on its side: a threaded sleeve, a threaded support, a pressure support, and a counterweight ring; the threaded sleeve is fitted on the outside of the threaded connector, the threaded support is located at the bottom of the threaded connector, the pressure support is fixedly located at the bottom of the threaded support, and the counterweight ring is fitted on the outside of the threaded support.

[0010] Furthermore, the side of the bearing top seat is also provided with a rotating block and a rotating support shaft; the rotating block is fixedly installed on the top of the bearing top seat, and the rotating support shaft is rotatably installed on the side of the rotating block.

[0011] Furthermore, the side of the mounting bracket is also provided with: an assembly side block, an adjusting motor, an adjusting worm gear, a rotating load shaft, an adjusting worm wheel, and a traction cable; the assembly side block is fixedly mounted on the side of the mounting bracket, the adjusting motor is fixedly mounted on the side of the assembly side block, the adjusting worm gear is rotatably mounted on the side of the assembly side block, the rotating load shaft is rotatably mounted on the side of the mounting bracket, and the adjusting worm wheel and the traction cable are sleeved on the outside of the rotating load shaft.

[0012] The in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies provided by this utility model has the following beneficial effects: This utility model achieves the following optimization effects by providing a load-bearing base, a load-bearing bottom frame, a load-bearing side frame, a load-bearing top column, and a load-bearing top seat: Through the synergistic action of locking grooves and locking bolts, the bearing base column is precisely positioned and assembled onto the bearing base frame, ensuring the stable bearing of different lithological test materials. The testing frame simultaneously compresses and fixes the materials. The bearing connecting rings on both sides further enhance the positioning effect. The bearing side frame provides stable support for the bearing support cylinder. The upper and lower sets of bearing support cylinders respectively undertake the functions of groundwater storage and testing device bearing. The precise docking of the connecting support, sealing airbag, and connecting ring ensures sealing performance. The position of the testing device is adjusted by the transmission of the threaded column and threaded support cylinder. The adjusting motor drives the rotating bearing shaft through the worm gear mechanism, and the traction cable and threaded connector realize the traction and tension of the threaded bearing column, so that the pressure support and the counterweight collar form a fixed pressure condition. The pressure support and the counterweight collar work together to complete the fixed value pressure operation of groundwater. Finally, the testing device accurately collects the permeability data of the lower bearing support cylinder, realizing high-precision determination of the groundwater permeability coefficient of different lithological materials. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the main view setting of the in-situ measuring instrument structure of this utility model; Figure 2 This is a structural diagram showing the assembly and disassembly of the load-bearing base of this utility model; Figure 3 This is a structural diagram illustrating the assembly and disassembly of the load-bearing base frame of this utility model. Figure 4 This is a structural diagram illustrating the assembly and disassembly of the load-bearing side frame integral component of this utility model; Figure 5 This is a structural diagram illustrating the assembly and disassembly of the load-bearing top column integral component of this utility model; Figure 6 This is a structural diagram illustrating the assembly and disassembly of the load-bearing top seat of this utility model.

[0014] Figure label: 1. Load-bearing base; 101. Support column; 102. Locking groove; 103. Threaded support column; 104. Threaded sleeve; 105. Detection device; 2. Supporting base frame; 201. Support frame; 202. Locking block; 203. Locking bolt; 204. Inspection frame; 205. Connecting ring; 206. Sealing groove; 3. Supporting side frame; 301. Connecting side tube; 302. Locking pressure frame; 303. Bearing support cylinder; 304. Connecting support; 305. Sealing airbag; 4. Supporting top column; 401. Sliding groove; 402. Sliding support; 403. Guide support; 404. Threaded connector; 405. Threaded sleeve; 406. Threaded support; 407. Pressure support; 408. Counterweight ring; 5. Supporting top seat; 501. Connecting the slot; 502. Rotating the carrier block; 503. Rotating the support shaft; 504. Installing the bracket; 505. Assembling the side block; 5051. Adjusting the motor; 5052. Adjusting the worm gear; 506. Rotating the carrier shaft; 507. Adjusting the worm wheel; 508. Traction cable. Detailed Implementation

[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0016] Example 1: As Figures 1 to 6 As shown, the in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies provided by this utility model includes a load-bearing base 1, a load-bearing bottom frame 2, a load-bearing side frame 3, a load-bearing top column 4, and a load-bearing top seat 5. A load-bearing base 1 has a load-bearing base column 101 fixedly installed on its top, and a locking support groove 102 is provided on the side of the load-bearing base column 101; a load-bearing base frame 2 is sleeved on the side of the load-bearing base column 101, and a load-bearing top frame 201 is provided on the top of the load-bearing base frame 2; locking blocks 202 are fixedly installed on both sides of the load-bearing base frame 2, and locking bolts 203 are provided on the side of the locking blocks 202; a detection frame 204 is fixedly installed on the side of the load-bearing base frame 2 and the load-bearing top frame 201; a load-bearing side frame 3 is fixedly installed on the side of the load-bearing base frame 2 and the load-bearing top frame 201, and a connecting side tube 301 is fixedly installed on the inner side of the load-bearing side frame 3. A locking pressure frame 302 is provided on the side of the side frame 3, and a bearing support cylinder 303 is provided on the side of the bearing side frame 3; the bearing top column 4 is fixedly installed on the top of the bearing bottom column 101, and a sliding loading groove 401 is opened on the side of the bearing top column 4. A sliding support column 402 is fixedly installed on the inner side of the sliding loading groove 401, and a guide support column 403 is slidably sleeved on the outer side of the sliding support column 402. A threaded connector 404 is fixedly installed on the inner side of the guide support column 403; the bearing top seat 5 is fixedly installed on the top of the bearing top column 4, and a connecting slot 501 is opened on the side of the bearing top seat 5. An installation bracket 504 is provided on the top of the bearing top seat 5.

[0017] Example 2: Figures 2 to 6 As shown, the side of the bearing top seat 5 is also provided with: a rotating block 502 and a rotating support shaft 503; the rotating block 502 is fixedly installed on the top of the bearing top seat 5, and the rotating support shaft 503 is rotatably installed on the side of the rotating block 502.

[0018] The mounting bracket 504 also includes the following components on its side: an assembly side block 505, an adjusting motor 5051, an adjusting worm gear 5052, a rotating shaft 506, an adjusting worm wheel 507, and a traction cable 508. The assembly side block 505 is fixedly mounted on the side of the mounting bracket 504, the adjusting motor 5051 is fixedly mounted on the side of the assembly side block 505, the adjusting worm gear 5052 is rotatably mounted on the side of the assembly side block 505, the rotating shaft 506 is rotatably mounted on the side of the mounting bracket 504, and the adjusting worm wheel 507 and the traction cable 508 are sleeved on the outside of the rotating shaft 506.

[0019] Example 3: Figures 2 to 6 As shown, the top of the load-bearing base 1 is also provided with: a threaded support column 103, a threaded support cylinder 104 and a detection device 105; the threaded support column 103 is fixedly installed on the top of the load-bearing base 1, the threaded support cylinder 104 is sleeved on the outside of the threaded support column 103, and the detection device 105 is fixedly installed on the top of the threaded support cylinder 104.

[0020] The side of the detection frame 204 is also provided with a connecting support ring 205 and a closed groove 206; the connecting support ring 205 is fixedly installed inside the detection frame 204, and the closed groove 206 is opened on the side of the connecting support ring 205.

[0021] The side of the support cylinder 303 is also provided with a connecting support 304 and a sealing airbag 305; the connecting support 304 is fixedly installed on the side of the support cylinder 303, and the sealing airbag 305 is fixedly installed on the side of the connecting support 304.

[0022] The threaded connector 404 is also provided with the following on its side: threaded sleeve 405, threaded support column 406, pressure support 407 and counterweight ring 408; the threaded sleeve 405 is sleeved on the outside of the threaded connector 404, the threaded support column 406 is set at the bottom end of the threaded connector 404, the pressure support 407 is fixedly set at the bottom end of the threaded support column 406, and the counterweight ring 408 is sleeved on the outside of the threaded support column 406.

[0023] The specific usage and function of this embodiment are as follows: In use, the supporting base column 101 is positioned and assembled with the supporting base frame 2 by locking the support groove 102 and locking bolt 203. The supporting base frame 2 positions and supports the different rock materials required for the measurement. At the same time, the detection frame 204 presses and fixes the different rock materials it supports. The supporting base frame 2 and the detection frame 204 are connected by the supporting ring 205 on both sides of the different rock materials. The supporting base frame 2 and the detection frame 204 support the supporting cylinder 303 through the supporting side frame 3. The two sets of supporting cylinders 303 are connected to the connecting ring 205 through the connecting support 304 and the sealing airbag 305. The supporting cylinders 303 are set above the different rock materials for measurement. The groundwater is used as the bearing material. The threaded support column 103 supports the rotation of the threaded support cylinder 104, which causes the detection device 105 to be adjusted in position. The bearing support cylinder 303 is set under different rock materials to support the detection device 105. The adjusting motor 5051 drives the rotating shaft 506 to rotate through the adjusting worm gear 5052 and the adjusting worm wheel 507. This causes the traction cable 508 to pull and stretch the threaded support column 404. The pressure bearing 407 and the counterweight collar 408 apply a fixed pressure to the groundwater being measured. The detection device 105 detects the amount of seepage water carried by the bearing support cylinder 303 under different rock materials, and the permeability coefficient of groundwater under different rock types is determined.

Claims

1. An in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies, mainly including the following components: load-bearing base (1), load-bearing bottom frame (2), load-bearing side frame (3), load-bearing top column (4) and load-bearing top seat (5). The load-bearing base (1) is fixedly provided with a load-bearing column (101) at the top, and the load-bearing column (101) is provided with a locking branch groove (102) on the side face, The supporting bottom frame (2) is sleeved on the side of the supporting bottom column (101). A supporting top frame (201) is provided on the top of the supporting bottom frame (2). Locking blocks (202) are fixedly provided on both sides of the supporting bottom frame (2). Locking bolts (203) are provided on the side of the locking blocks (202). A detection frame (204) is fixedly provided on the side of the supporting bottom frame (2) and the supporting top frame (201). The supporting side frame (3) is fixedly provided on the side of the supporting bottom frame (2) and the supporting top frame (201). A connecting side tube (301) is fixedly provided on the inner side of the supporting side frame (3). A locking pressure frame (302) is provided on the side of the supporting side frame (3). (3) A bearing support cylinder (303) is provided on the side; the bearing top column (4) is fixedly set on the top of the bearing bottom column (101), the bearing top column (4) is provided with a sliding loading groove (401) on the side, a sliding support column (402) is fixedly set on the inner side of the sliding loading groove (401), a guide support column (403) is slidably sleeved on the outer side of the sliding support column (402), and a threaded connector (404) is fixedly set on the inner side of the guide support column (403); the bearing top seat (5) is fixedly set on the top of the bearing top column (4), the bearing top seat (5) is provided with a connecting slot (501) on the side, and an installation bracket (504) is provided on the top of the bearing top seat (5).

2. The in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies as described in claim 1 is further characterized in that the top of the load-bearing base (1) is also provided with: a threaded support column (103), a threaded support cylinder (104) and a detection device (105); the threaded support column (103) is fixedly installed on the top of the load-bearing base (1), the threaded support cylinder (104) is sleeved on the outside of the threaded support column (103), and the detection device (105) is fixedly installed on the top of the threaded support cylinder (104).

3. The in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies according to claim 1 is further characterized in that the side of the detection frame (204) is also provided with: a connecting support ring (205) and a closed groove (206); the connecting support ring (205) is fixedly disposed inside the detection frame (204), and the closed groove (206) is opened on the side of the connecting support ring (205).

4. The in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies according to claim 1 is further characterized in that the side of the bearing support cylinder (303) is also provided with: a connecting support (304) and a sealing airbag (305); the connecting support (304) is fixedly disposed on the side of the bearing support cylinder (303), and the sealing airbag (305) is fixedly disposed on the side of the connecting support (304).

5. The in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies according to claim 1 is further characterized in that the threaded connector (404) is further provided with: a threaded sleeve (405), a threaded support column (406), a pressure support (407), and a counterweight ring (408); the threaded sleeve (405) is sleeved on the outside of the threaded connector (404), the threaded support column (406) is provided at the bottom end of the threaded connector (404), the pressure support column (407) is fixedly provided at the bottom end of the threaded support column (406), and the counterweight ring (408) is sleeved on the outside of the threaded support column (406).

6. The in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies according to claim 1 is further characterized in that the side of the bearing top seat (5) is also provided with: a rotating block (502) and a rotating support shaft (503); the rotating block (502) is fixedly disposed on the top of the bearing top seat (5), and the rotating support shaft (503) is rotatably disposed on the side of the rotating block (502).

7. The in-situ groundwater permeability coefficient measuring instrument adapted to different lithologies according to claim 1 is further characterized in that the side of the mounting bracket (504) is also provided with: an assembly side block (505), an adjusting motor (5051), an adjusting worm (5052), a rotating shaft (506), an adjusting worm wheel (507), and a traction cable (508); the assembly side block (505) is fixedly disposed on the side of the mounting bracket (504), the adjusting motor (5051) is fixedly disposed on the side of the assembly side block (505), the adjusting worm (5052) is rotatably disposed on the side of the assembly side block (505), the rotating shaft (506) is rotatably disposed on the side of the mounting bracket (504), and the adjusting worm wheel (507) and the traction cable (508) are sleeved on the outside of the rotating shaft (506).

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