Rock-soil layer permeability measuring device for land planning

Abstract

The utility model relates to the technical field of rock-soil permeability testing devices, and provides a rock-soil layer permeability testing device for land planning, which comprises a bottom box and a top box, the top box is arranged at the top of the bottom box, a connecting assembly is arranged between the bottom box and the top box, an extrusion detection assembly is arranged on the top box and the bottom box, and the extrusion detection assembly comprises an inner plate. High-density water holes are formed in the surface of the inner plate, a water injection pipe is arranged on the side surface of the top box, one end of the water injection pipe is connected with a sealing valve in a screwed mode, a drainage pipe is arranged at the bottom of the bottom box, an exhaust valve is installed on the drainage pipe, an inner threaded pipe is installed at the top of the top box, and a stud is connected into the inner threaded pipe in a screwed mode. According to the technical scheme, the problems of inaccurate measurement surface, uncertain density of rock at the periphery of the measurement hole and the like in the prior art are solved, and the problem that the reliability of detection data is reduced is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rock-soil permeability testing device technical field, specifically, relate to a land planning rock-soil layer permeability measuring device. BACKGROUND

[0002] In the survey process of mining area or engineering ground, the water permeability of geology needs to be detected, the equipment used for measuring the rock-soil layer permeability in the prior art is actually a water meter indicating cumulative flow, and each operation step is completed by manual operation, so that the operation steps are complex, the workload is large, and the labor intensity is large.

[0003] ‌Rock-soil layer permeability refers to the water passing capacity of rock-soil layer pores and fissures under fluid pressure. Specifically, rock-soil layer permeability reflects the connectivity of rock-soil layer pores and fissures, and the ability of fluid passing through these pores and fissures.

[0004] Rock-soil layer permeability refers to the water passing capacity of rock-soil layer pores and fissures under fluid pressure. This capacity can be quantified by permeability, which refers to the relationship between the fluid flow per unit time, the cross-sectional area of the rock sample, the viscosity of the fluid, the length of the rock sample, and the pressure difference between the two ends of the rock sample under a certain pressure difference. The main factors affecting rock-soil layer permeability include:‌the size and distribution of pores and fissures: the larger the pores and fissures, the more unobstructed the fluid flow channel, and the better the permeability.‌Fluid viscosity: the higher the viscosity of the fluid, the greater the flow resistance, and the worse the permeability.‌Pressure difference: the greater the pressure difference, the greater the driving force of the fluid, and the better the permeability.

[0005] The Chinese utility model patent with patent No. CN201320274611.6 records a water pressure testing device for automatically measuring rock-soil layer permeability in engineering geological survey, which adopts drilling in the survey site, and detects water permeability by cooperating the water stop plug with the drilling hole. The water pressure testing device can automatically record the flow data without manual operation, makes the detection more convenient, and has higher accuracy of collected data. However, there are problems such as inaccurate measurement surface, uncertain density of rock around the measurement hole, and reduced reliability of detection data.

[0006] Therefore, the above problems are improved. UTILITY MODEL CONTENTS

[0007] The utility model discloses a rock-soil layer permeability measuring device for land planning, which solves the problems of inaccurate measurement surface, uncertain density of rock around the measurement hole, and reduced reliability of detection data in the related art.

[0008] The technical scheme of the utility model is as follows: including

[0009] A bottom box and a top box, wherein the top box is disposed on top of the bottom box;

[0010] A connecting component is disposed between the bottom box and the top box;

[0011] An extrusion detection assembly is disposed on the top box and the bottom box;

[0012] The extrusion detection assembly includes an inner plate, which is fixed in the bottom box. The surface of the inner plate is provided with high-density water holes, and an exhaust pipe is provided on the side surface of the top box. An exhaust valve is screwed to one end of the exhaust pipe.

[0013] As a further technical solution, a drain pipe is provided at the bottom of the bottom box, a drain valve is installed on the drain pipe, and an internally threaded pipe is installed on the top of the top box, with a stud screwed into the internally threaded pipe.

[0014] As a further technical solution, the lower end of the stud is rotatably connected to an extrusion plate, the top of the top box has a circular opening, the extrusion plate is provided with a water injection pipe, the water injection pipe is located inside the circular opening, and the upper end of the water injection pipe is provided with a sealing valve.

[0015] As a further technical solution, the connecting component includes a socket, which is located on the top of the bottom box. The top of the bottom box has an annular groove, and the bottom of the top box is screwed into the socket by threads.

[0016] As a further technical solution, a sealing plate is provided around the bottom of the top box, the sealing plate is inserted into the annular groove, a number of internal threaded blocks are provided on the surface of the bottom box, and a number of external ears are provided around the side surface of the top box.

[0017] As a further technical solution, a connecting rod is rotatably connected to the outer ear, and an external threaded block is provided at the lower end of the connecting rod. The external threaded block is screwed into the internal threaded block.

[0018] As a further technical solution, the extrusion plate and the inner wall of the top box are in a sealed sliding fit.

[0019] As a further technical solution, both the upper end of the stud and the upper end of the connecting rod are provided with a screwing block, and the screwing block has a polygonal structure.

[0020] The working principle and beneficial effects of this utility model are as follows:

[0021] 1. This utility model is equipped with a squeezing detection component. Through the interaction of high-density water holes, exhaust pipe, drain pipe, stud, squeezing plate, water injection pipe and sealing valve, water can be injected into the interior and excess gas can be discharged. The water penetration effect can be detected by squeezing the water manually. The operation is simple and convenient.

[0022] 2. This utility model is equipped with a connecting component. Through the interaction of structures such as the annular groove, sealing plate, internal threaded block, external ear, connecting rod and external threaded block, the bottom box and top box adopt a split structure, which can firmly fix the bottom box and top box together, making it convenient for loading and unloading of soil and rock testing. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is an isometric sectional view of the present invention;

[0026] Figure 3 This is an isometric sectional view of the present invention from another perspective;

[0027] Figure 4 Appendix to this utility model Figure 3 Enlarged view of part A in the middle;

[0028] In the diagram: 1. Bottom box; 2. Top box; 3. Extrusion detection assembly; 3-1. Inner plate; 3-2. High-density water holes; 3-3. Exhaust pipe; 3-4. Exhaust valve; 3-5. Drain pipe; 3-6. Drain valve; 3-7. Internally threaded pipe; 3-8. Stud; 3-9. Extrusion plate; 3-10. Circular opening; 3-11. Water injection pipe; 3-12. Sealing valve; 4. Connecting assembly; 4-1. Socket; 4-2. Annular groove; 4-3. Sealing plate; 4-4. Internally threaded block; 4-5. External lug; 4-6. Connecting rod; 4-7. Externally threaded block; 5. Tightening block. Detailed Implementation

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0030] like Figures 1-4 As shown, this embodiment proposes a soil and rock layer permeability measuring device for land planning, including...

[0031] The bottom box 1 and the top box 2 are located on top of the bottom box 1;

[0032] Connection component 4 is disposed between bottom box 1 and top box 2;

[0033] The extrusion detection component 3 is installed on the top box 2 and the bottom box 1;

[0034] The extrusion detection assembly 3 includes an inner plate 3-1, which is fixed in the bottom box 1. The surface of the inner plate 3-1 is provided with high-density water holes 3-2. The side surface of the top box 2 is provided with an exhaust pipe 3-3, and one end of the exhaust pipe 3-3 is screwed to an exhaust valve 3-4. The bottom of the bottom box 1 is provided with a drain pipe 3-5, and a drain valve 3-6 is installed on the drain pipe 3-5. The top of the top box 2 is provided with an internally threaded pipe 3-7, and a stud 3-8 is screwed to the internally threaded pipe 3-7. The lower end of the stud 3-8 is rotatably connected to an extrusion plate 3-9. The top of the top box 2 is provided with a circular opening 3-10. A water injection pipe 3-11 is provided on the extrusion plate 3-9. The water injection pipe 3-11 is located inside the circular opening 3-10. A sealing valve 3-12 is provided at the upper end of the water injection pipe 3-11.

[0035] In this embodiment, in order to achieve the effect of extrusion testing of soil and rock layers, an extrusion testing component 3 is designed. An inner plate 3-1 is provided inside the bottom box 1 and has high-density water holes 3-2 for separating water downwards. The surface of the inner plate 3-1 is used to place soil and rock. An exhaust pipe 3-3 and an exhaust valve 3-4 are provided on one side of the bottom box 1 for venting and discharging excess gas. An internally threaded pipe 3-7 is provided on the top of the top box 2 and is screwed to a stud 3-8. An extrusion plate 3-9 is provided at the lower end of the stud 3-8. The stud 3-8 can be turned to make the extrusion plate 3-9 extrude downwards. A circular opening 3-10 is provided on the top of the top box 2. A water injection pipe 3-11 and a sealing valve 3-12 are provided on the surface of the extrusion plate 3-9 for injecting water inwards. After water is injected, the stud 3-8 can be turned to extrude the extrusion plate 3-9 downwards for testing.

[0036] Furthermore, the connecting component 4 includes a socket 4-1, which is located on the top of the bottom box 1. The top of the bottom box 1 has an annular groove 4-2. The bottom of the top box 2 is screwed into the socket 4-1. A sealing plate 4-3 is provided around the bottom of the top box 2 and is inserted into the annular groove 4-2. Several internal threaded blocks 4-4 are provided on the surface of the bottom box 1. Several external ears 4-5 are provided around the side surface of the top box 2. A connecting rod 4-6 is rotatably connected to the external ears 4-5. An external threaded block 4-7 is provided at the lower end of the connecting rod 4-6 and is screwed into the internal threaded block 4-4.

[0037] In this embodiment, in order to achieve the effect of separate connection between the top box 2 and the bottom box 1, a connecting component 4 is designed. A socket 4-1 is provided on the top of the bottom box 1, and the top box 2 is screwed into the socket 4-1 to connect the top box 2 and the bottom box 1. An annular groove 4-2 is provided on the top of the bottom box 1, and a sealing plate 4-3 is provided on the outside of the top box 2 to be inserted into the annular groove 4-2 to enhance the sealing effect. Multiple internal threaded blocks 4-4 are provided around the surface of the bottom box 1, and multiple external ears 4-5 are provided around the outer surface of the top box 2. The external ears 4-5 correspond to the positions of the internal threaded blocks 4-4. A connecting rod 4-6 is rotatably connected to the external ears 4-5. An external threaded block 4-7 is provided at the lower end of the connecting rod 4-6 for screwing into the internal threaded block 4-4, so that the top box 2 and the bottom box 1 can be fixedly connected.

[0038] Furthermore, the extrusion plate 3-9 and the inner wall of the top box 2 are in a sealed sliding fit.

[0039] In this embodiment, the sealing and fitting effect is used to avoid leakage and affect studs 3-8.

[0040] Furthermore, both the upper end of the stud 3-8 and the upper end of the connecting rod 4-6 are provided with a screwing block 5, which has a polygonal structure.

[0041] In this embodiment, the polygonal screw block 5 is provided to facilitate clamping with tools for operation.

[0042] When testing is required, place the soil and rock into the bottom box 1, then screw the top box 2 into the socket 4-1. Align the outer ear 4-5 with the inner threaded block 4-4, and then turn the connecting rod 4-6 to screw the outer threaded block 4-7 into the inner threaded block 4-4. Fix the top box 2 to the bottom box 1, connect the water pipe to the main water pipe, and open the sealing valve 3-12 to inject water into the interior. Then close the sealing valve 3-12 and open the exhaust valve 3-4 to expel excess gas. Then turn the stud 3-8 to move the extrusion plate 3-9 downward to generate pressure, squeezing the water into the soil and rock. After the water permeates, it separates and discharges downward through the high-density water holes 3-2, and finally discharges outward through the drain pipe 3-5. The permeability can be judged based on the flow rate.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for measuring the permeability of soil and rock layers for land planning, characterized in that, include A bottom box (1) and a top box (2), wherein the top box (2) is disposed on top of the bottom box (1); A connecting component (4) is disposed between the bottom box (1) and the top box (2); An extrusion detection assembly (3) is disposed on the top box (2) and the bottom box (1); The extrusion detection component (3) includes an inner plate (3-1), which is fixed in the bottom box (1). The inner plate (3-1) has high-density water holes (3-2) on its surface. The top box (2) has an exhaust pipe (3-3) on its side surface, and an exhaust valve (3-4) is screwed to one end of the exhaust pipe (3-3).

2. The soil and rock permeability measuring device for land planning according to claim 1, characterized in that, The bottom of the bottom box (1) is provided with a drain pipe (3-5), and a drain valve (3-6) is installed on the drain pipe (3-5). The top of the top box (2) is provided with an internally threaded pipe (3-7), and a stud (3-8) is screwed into the internally threaded pipe (3-7).

3. The soil and rock permeability measuring device for land planning according to claim 2, characterized in that, The lower end of the stud (3-8) is rotatably connected to the extrusion plate (3-9). The top of the top box (2) has a circular opening (3-10). A water injection pipe (3-11) is provided on the extrusion plate (3-9). The water injection pipe (3-11) is located inside the circular opening (3-10). A sealing valve (3-12) is provided at the upper end of the water injection pipe (3-11).

4. The soil and rock permeability measuring device for land planning according to claim 2, characterized in that, The connecting component (4) includes a socket (4-1), which is located on the top of the bottom box (1). The top of the bottom box (1) has an annular groove (4-2), and the bottom of the top box (2) is screwed into the socket (4-1) by a thread.

5. The soil and rock permeability measuring device for land planning according to claim 4, characterized in that, A sealing plate (4-3) is provided around the bottom of the top box (2), and the sealing plate (4-3) is inserted into the annular groove (4-2). A number of internal threaded blocks (4-4) are provided on the surface of the bottom box (1), and a number of external ears (4-5) are provided around the side surface of the top box (2).

6. The soil and rock permeability measuring device for land planning according to claim 5, characterized in that, A connecting rod (4-6) is rotatably connected to the outer ear (4-5). An external threaded block (4-7) is provided at the lower end of the connecting rod (4-6). The external threaded block (4-7) is screwed into the internal threaded block (4-4).

7. The soil and rock permeability measuring device for land planning according to claim 3, characterized in that, The extrusion plate (3-9) and the inner wall of the top box (2) are in a sealed sliding fit.

8. A soil and rock permeability measuring device for land planning according to claim 6, characterized in that, Both the upper end of the stud (3-8) and the upper end of the connecting rod (4-6) are provided with a screwing block (5), and the screwing block (5) has a polygonal structure.

Images