Measuring device for occurrence and property of minor fault

Abstract

The utility model relates to the technical field of coal seam faults, in particular to a measuring device for occurrence and properties of minor faults. Comprising a movable plate, a fixed plate, a positioning pendulum ball, a mechanical compass and a linear light source, fault marker lines are drawn on the surfaces of the movable plate and the fixed plate, and when the movable plate and the fixed plate are vertically overlapped and aligned, the two fault marker lines are also overlapped and aligned; a clamping device is arranged on the edge of the fixed plate, and the movable plate is attached to the upper surface of the fixed plate through the clamping device. Linear light sources are fixedly mounted on the side surfaces of the fixing plates; a plate nail is fixed on the top surface of the movable plate, a swing rope is tied on a rod body of the plate nail, and the lower end of the swing rope is connected with a positioning swing ball; the mechanical compass is sleeved on the plate nail; according to the utility model, the fault is modeled, and the traditional compass is combined, so that the operation is not interfered by a magnetic field caused by metal, the fault occurrence measurement precision of the traditional compass can be improved, and meanwhile, the minor fault property can be quickly judged.

Description

TECHNICAL FIELD

[0001] The utility model discloses coal seam measurement technical field, concretely is a small fault occurrence and property's measuring device. BACKGROUND

[0002] Small faults developed in coal seams will destroy the continuity of the coal seams, and when the fault throw is greater than the thickness of the coal seam, the coal seam will be completely disconnected, thereby reducing the recoverable reserves of the coal. In addition, when the heading face and the mining face encounter a fault, the heading and mining speed needs to be reduced, and even the production mode may need to be changed to pass through the fault, thereby increasing the engineering quantity of the roadway excavation. Meanwhile, the lithology near the fault is destroyed, and the roadway support mode needs to be changed when passing through the fault, thereby increasing the difficulty and cost of the support. Furthermore, the rock stratum near the fault is relatively broken, and if the support is not timely, accidents such as spalling and roof falling are easily caused. In high-gas mines and coal and gas (CO2) outburst mines, when the heading roadway encounters a fault, safety accidents are also easily caused.

[0003] Accurate measurement of the occurrence of small faults exposed in the process of coal mining and judgment of the fault properties can help technicians or staff to more accurately design the mining scheme, reasonably plan the roadway layout and the working face advancing direction, avoid mining difficulties and resource waste caused by insufficient understanding of the fault conditions, and improve the recovery rate of coal resources. Through accurate measurement, the position, strike, dip angle and other information of the small fault can be known in advance, and corresponding support measures and safety prevention measures can be taken in advance, so that safety accidents such as roof falling, spalling and gas outburst are effectively prevented, and the safe production of the coal mine is ensured. Accurate grasp of the information of the small fault can make the mining work more smoothly, reduce the situations of shutdown and reduced production caused by the influence of the fault, improve the mining efficiency, and reduce the production cost.

[0004] At present, the main method for measuring the occurrence of small faults is the geological compass measurement method, that is, the staff adjusts the pointer of the horizontal bubble of the geological compass to zero, then sticks the long side of the compass to a complete and smooth layer of the rock stratum, slowly moves the compass to make the horizontal bubble centered, draws a line along the longest side to obtain the strike line of the fault, and then measures the dip and dip angle according to the short side and the long side of the compass. This method has obvious defects. When measuring the dip angle or slope angle, if the dip direction is not accurately identified, a false dip angle is easily measured. On the other hand, the metal materials such as anchor rods, anchor nets and supports near the coal wall cause magnetic field interference during the measurement, thereby increasing the indication error of the compass. In addition, the drilling detection method, the seismic wave method and the electromagnetic method can also be used to measure the occurrence of the fault, but the cost is extremely high, the detection difficulty is relatively great, and the precision is relatively low. UTILITY MODEL CONTENTS

[0005] The utility model overcomes the prior art's insufficient, propose a small fault occurrence and property's measuring device, solve the problem of the decline of measurement accuracy caused by magnetic field interference in the measurement process.

[0006] In order to achieve the above object, the utility model is through the following technical schemes realizes:

[0007] A small fault occurrence and property's measuring device, including movable plate, fixed plate, positioning pendulum, mechanical compass and linear light source, movable plate and fixed plate surface all draw have fault mark line, when movable plate and fixed plate overlap and stick up, two fault mark lines also coincide alignment, fixed plate edge is provided with clamping device, and movable plate is stuck on the upper surface of fixed plate through clamping device,

[0008] Fixed plate bottom is connected with fixed support, and linear light source is fixedly installed on the side surface of fixed plate, the top surface of movable plate is fixed with plate nail, the rod body of plate nail is tied with pendulum rope, and the lower end of pendulum rope is connected with positioning pendulum, and mechanical compass is covered on plate nail.

[0009] Further, the movable plate and the fixed plate are both transparent materials, and the movable plate and the fixed plate have the same shape structure.

[0010] Further, the movable plate and the fixed plate are both transparent materials, and the movable plate and the fixed plate have the same shape structure.

[0011] Further, the clamping device is arranged on the side edge of the fixed plate, and the movable plate and the fixed plate are fixed through the clamping device when the movable plate and the fixed plate are coincidently placed.

[0012] Further, the fixed support includes a rotating shaft and a stretchable triangular support, the rotating shaft is fixed at the center position of the bottom of the fixed plate, the stretchable triangular support is provided with a shaft sleeve at the top, and the rotating shaft is hinged in the shaft sleeve.

[0013] Further, the stretchable triangular support is detachably connected with a toe at the bottom.

[0014] Further, the movable plate, the fixed plate, the clamping device, the rotating shaft, the stretchable triangular support, the toe, the plate nail, the pendulum rope, the positioning pendulum and the linear light source are all non-metal materials.

[0015] The utility model compared with prior art has the beneficial effects that:

[0016] The utility model models the fault, combines the traditional compass, and the operation is not interfered by the magnetic field caused by the metal existing at the place far from the coal bank and the wall surface with anchor rod, anchor net and support etc., can improve the precision of traditional compass measurement fault occurrence, and small fault property can be judged quickly. The device is simple to operate, low in cost, convenient to carry, and has strong applicability to underground environment.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the structural schematic view of the small fault occurrence and property measuring device of the utility model;

[0018] Reference signs:

[0019] 1, movable plate; 2, fixed plate; 3, clamping device; 4, rotating shaft; 5, stretchable triangular support; 6, toe; 7, flexible material; 8, plate nail; 9, pendulum rope; 10, positioning pendulum ball; 11, mechanical compass; 12, linear light source; 13, fault marker line. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model more clear and obvious, the utility model is further described in detail in combination with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model. The technical scheme of the utility model is described in detail below in combination with embodiments and drawings, but the protection scope is not limited by this.

[0021] Referring to Figure 1 , the embodiment proposes a small fault occurrence and property measuring device, which comprises a movable plate 1, a fixed plate 2, a clamping device 3, a stretchable triangular support 5, a flexible material 7, a plate nail 8, a pendulum rope 9, a positioning pendulum ball 10, a mechanical compass 11 and a linear light source 12.

[0022] The movable plate 1 simulates the hanging wall of a small fault and is consistent in shape and size with the fixed plate 2, is rectangular, is transparent in material and can be transparent organic glass; the fixed plate 2 simulates the footwall of a small fault, the surface of the fixed plate 2 is drawn with a fault marker line 13, and similarly, the surface of the movable plate 1 is also drawn with a fault marker line 13; when the movable plate 1 and the fixed plate 2 are overlapped and pasted together, the two fault marker lines 13 are also aligned. The fault marker line 13 can assist in quickly judging the property of the fault. When it is necessary to fix the movable plate 1, the flexible material 7 such as double-sided adhesive tape can be used to bond between the lower surface of the movable plate 1 and the lower surface of the fixed plate 2.

[0023] The clamping device 3 is arranged on the side edge of the fixed plate 2 and is used to fix the movable plate 1 when the movable plate 1 is placed in coincidence with the fixed plate 2. In the embodiment, the clamping device 3 is of a conventional structure, such as a mechanical clamping device or a cushion clamping device, and the main purpose is to fix the movable plate 1. The rotating shaft 4 is fixed at the bottom center of the fixed plate 2, and the top of the stretching triangular support 5 is provided with a shaft sleeve, and the rotating shaft 4 is hinged in the shaft sleeve, so that the fixed plate 2 above the stretching triangular support 5 can rotate; the rotating shaft 4 can be used to adjust the direction in which the fixed plate 2 can rotate. The stretching triangular support 5 is of a conventional structure and can be adjusted in length, and is used to adjust the height of the fixed plate 2; the toe 6 is mounted at the bottom of the stretching triangular support 5 and can be detached, so as to facilitate the fixation and stabilization of the whole device on the ground of different textures.

[0024] The linear light source 12 is fixed on the side of the fixed plate 2, and monochromatic light is emitted by controlling the switch of the linear light source 12, and the light is straight after passing through the diaphragm and is parallel to the actual fault plane at a certain distance.

[0025] The plate nail 8 is fixed on the top surface of the movable plate 1, the head of the plate nail 8 is circular, and the rod body is smooth. The swing rope 9 is tied on the rod body of the plate nail 8, and the lower end of the swing rope 9 is connected with the positioning swing ball 10. The directional swing ball 10 has a certain weight and is smooth and adheres to the surface of the movable plate 1. The mechanical compass 11 is used to measure the occurrence of the movable plate 1, and the plate nail 8 is sleeved on the small hole on the compass cover of the mechanical compass 11 and can rotate around the shaft of the plate nail 8 freely.

[0026] All the components except the mechanical compass 11 are made of non-metallic materials, so as not to affect the accuracy of the indication of the mechanical compass 11 to the surrounding magnetic field.

[0027] The use method of the small fault occurrence and property measuring device is as follows:

[0028] S1: In the initial state of the device, the movable plate 1 and the fixed plate 2 are fixed and placed in coincidence by the clamping device 3, and the stretching triangular support 5 is tightly attached to the back of the fixed plate 2, so as to be in the closed state. When the device is used near the small fault exposed in the mine, it is expanded in a relatively spacious place.

[0029] S2: The toe 6 is mounted at the bottom of the stretching triangular support 5, and the angle and length of the stretching triangular support 5 are opened and adjusted, so that the device is stably arranged in front of the observation point.

[0030] S3: The linear light source 12 is turned on, the angle of the fixed plate 2 is rotated and adjusted through the rotating shaft 4, so that the light emitted by the linear light source 12 is parallel to the plane formed by the fixed plate 2 and the fault plane of the exposed small fault.

[0031] S4: open the clamping device 3, according to the actual position of the upper and lower plates of the small fault, the movable plate 1 is moved accordingly, so that the relative position of the movable plate 1 and the fixed plate 2 is consistent with the actual fault, at this time the fault property can be judged by the relative displacement of the fault mark line 13. If the movable plate 1 moves downward relative to the fixed plate 2, the small fault is a normal fault, and vice versa.

[0032] S5: the movable plate 1 and the fixed plate 2 are bonded and fixed by using flexible material 7, at this time the device establishes and maintains the physical model of the small fault.

[0033] S6: swing the positioning pendulum 10, after keeping still in the free state, the positioning pendulum 10 is bonded and fixed with the movable plate 1 by using flexible material 7, at this time the direction indicated by the pendulum rope 9 is the tendency of the fault plane.

[0034] S7: the mechanical compass 11 is kept parallel with the pendulum rope 9, and the values of the tendency and the inclination of the fault plane are measured respectively.

[0035] S8: continue to operate S6 and S7, take the average value after measuring three times, so as to ensure the accuracy of the measurement result.

[0036] S9: remove the flexible material 7, turn off the linear light source 12, reset the movable plate 1, then clamp the movable plate 1 with the clamping device 3, and retract the stretchable triangular support 5, the measurement is completed.

[0037] The above is a further detailed description of the utility model in combination with the specific preferred embodiment, which cannot be regarded as the specific embodiment of the utility model being limited to this. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the utility model, a number of simple deductions or substitutions can be made, which should be regarded as belonging to the utility model, and the patent protection range is determined by the submitted claims.

Claims

1. A device for measuring small fault occurrence and properties, characterized by, The utility model relates to a kind of activity board and fixed plate, including activity board (1), fixed plate (2), positioning pendulum (10), mechanical compass (11) and linear light source (12);Activity board (1) and fixed plate (2) surface are drawn with fault mark line (13), when activity board (1) and fixed plate (2) overlap and stick up and down, two fault mark lines (13) also coincide alignment;Fixed plate (2) edge is provided with clamping device (3), and activity board (1) is adhered on the upper surface of fixed plate (2) by clamping device (3); Fixed plate (2) bottom is connected with fixed support, and fixed plate (2) side is fixedly installed with linear light source (12);The top surface of activity board (1) is fixed with plate nail (8), and the rod of plate nail (8) is hung with pendulum rope (9), and the lower end of pendulum rope (9) is connected with positioning pendulum (10);Mechanical compass (11) is sleeved on plate nail (8).

2. A device for measuring the occurrence and properties of small faults according to claim 1, characterized in that, The activity board (1) and fixed plate (2) are both transparent material, and the shape structure of activity board (1) is same with fixed plate (2).

3. The apparatus for measuring the occurrence and properties of small faults according to claim 1, wherein It further includes flexible material (7), when the relative position of activity board (1) and fixed plate (2) needs to be fixed, and the relative position of positioning pendulum (10) and activity board (1) needs to be fixed, it is bonded by flexible material (7).

4. The apparatus for measuring a small fault occurrence and property according to claim 1, wherein Clamping device (3) is arranged at the side edge of the periphery of fixed plate (2), when activity board (1) and fixed plate (2) coincide and place, activity board (1) and fixed plate (2) are fixed by clamping device (3).

5. A device for measuring the occurrence and properties of small faults according to claim 4, characterized in that, The fixed support includes rotating shaft (4) and stretchable triangular support (5);Fixed plate (2) bottom center position is fixed with rotating shaft (4), and the top of stretchable triangular support (5) is provided with shaft sleeve, and rotating shaft (4) is hinged in the shaft sleeve.

6. A device for measuring the occurrence and properties of small faults according to claim 5, characterized in that, Stretchable triangular support (5) bottom is detachably connected with toe (6).

7. A device for measuring the occurrence and properties of small faults according to claim 6, characterized in that, Activity board (1), fixed plate (2), clamping device (3), rotating shaft (4), stretchable triangular support (5), toe (6), plate nail (8), pendulum rope (9), positioning pendulum (10) and linear light source (12) are all non-metallic materials.

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