RU16401U1 - DEVICE FOR MEASURING THROUGH A WELL OF DISTANCE BETWEEN THE WALLS OF RISING PRODUCTION PASSED BY THE NON-COMMON METHOD IN THE ARRAY OF ROCKS - Google Patents

Description

The proposed utility model relates to measuring equipment and is intended for technological measurements in the field of mining, namely for measurements at various depths of the distances between the walls of the uprising excavated without the presence of people in the face.

In underground mining over the past 30 years, a method of sinking uprising (vertical) mine workings in sequential sectional patterns has been widely used.

blasting explosive charges in a set of wells drilled along the route of this development. Due to the fact that there are never miners during sinking, the method is called the "uninhabited method of sinking uprising workings by sectional blasting of borehole charges."

The workings completed by this method are used to transfer ore from the upper horizon to the lower horizon, ventilation, as a compensation space for breaking the ore in

block. Currently, a method is proposed in which rebellious production is used to place concentrated mine charges in it. When using the uprising mine as an ore pass, ventilation mine, and compensation space, there are no strict requirements for the mine cross section, and when used to place explosives, its exact dimensions are necessary. In the measuring technique for the mining industry, we do not know devices for determining the distances between the walls of the rising production without the presence of people in the face. Only devices for the oil industry are known when caverns and well wall profiles are measured in wells.

A device for calibrating borehole calipers and profilers (see a. S. USSR No. 1025991, G01B5 / 00, Е21В47 / 02, published in BI No. 24, 1983), comprising a housing, centering clamps, a calibration unit, made in the form of a system of rods on which are mounted with the possibility of fixing and moving along the rods of the frame with measuring levers, and the rods are calibrated and movably connected with the housing.

A disadvantage of the known technical solution is the impossibility of its use in the uprising, passed without the presence of people in the face, to measure the distances between its walls.

there is no passage for people to pass through the uninhabited method, which excludes the use of the known device.

The closest in technical essence and the achieved effect is a device for checking and calibrating lever meters, for example, bore calipers and profilers (see AS USSR No. 1409852, G 01B5 / 00, published in BI No. 26, 1988), containing case with rods, a centering clip mounted on the case, carriages with stops mounted on each rod with the possibility of movement along it, a reference unit, a drive for synchronous movement of carriages, made in the form of a drum with a lock of its discrete positions, flexible connections, each of which is connected at one end to the drum, and at the other to one of the carriages, and guides for flexible connections.

A disadvantage of the known technical solution is the impossibility of its use in the uprising, walked without the presence of people in the face to measure the distances between its walls, since there is no access for people to this uprising.

The technical task is to create a device for the mining industry, providing remote measurement of the distances between the walls of the rising workings to determine the area of its cross section without the presence of people in it

by a fixed extension of the measuring rods in two mutually non-perpendicular planes at a fixed depth of immersion of the device.

A device for measuring through a borehole the distances between the walls of the uprising excavated by the uninhabited method in a rock mass, including a housing with measuring bars, guides, a centering clamp, a displacement drum and flexible connections, for the task it is equipped with mounting brackets and an additional centering clamp. The measuring rods forming the upper parts of the rhombuses are pivotally mounted on the body in two mutually perpendicular planes and are attached to a lifting sling equipped with depth marks and attached to the displacement drum located outside the rebounding hole, and the mounting rods forming the lower parts of the rhombuses are fixed on the centering and additional centering clamps, freely moving along two guide rods mounted on the housing, through flexible connections in the form of measuring threads, with union of sections with measuring drum located outside the insurgent generation. Each section of the measuring drum is equipped with graduation elements to determine the distance between the ends of the measuring bars in the cross section of the rising production.

Such a constructive solution provides the ability to remotely control the extension of the measuring rods using flexible connections in the form of measuring threads through the sections of the measuring drum, and the return of these rods to their original state is carried out under the influence of their own weight, which ensured the simplicity of design and the reliability of work in rebellious workings when people access impossible.

The measuring rods can be equipped with additional tips, and the graduation elements of the sections of the measuring drum can be equipped with additional elements for calibrating the distance between the ends of the additional tips of the measuring rods in the cross section of the riser.

Such a constructive solution provides a measurement of the distances between the walls of the rebellious working, when its transverse size is greater than the magnitude of the extension of the rhombuses. The measuring rods are increased with additional tips, which, with the same extension of the rhombuses, allows these tips to contact the walls of the rising working. Moreover, the extension of the rhombuses when using additional tips is graduated with additional graduation elements, taking into account the total length of the measuring rod with an additional tip.

The return of the measuring rods to their original state, when they are stretched along one sling, is carried out under the action of its own weight. The above provided simplicity of design, reliable operation for measuring the distances between the walls of the rising workings without the presence of people in it.

The technicality of the technical solution is illustrated by the example of the structural embodiment and the drawings of FIG. 1-3, where: in FIG. 1 shows a schematic diagram of a device for measuring through a borehole the distances between the walls of an uprising mine drilled by an uninhabited method in a rock mass — vertical section;

in FIG. 2 is the same, node A in FIG. 1 on an enlarged scale; in Fig.3 - the same, the node A in Fig.2 is rotated 90 °.

The conditions under which they measure the distances between the walls of the rebellious mine 1 (Fig. 1), passed by the "uninhabited method of successive blasting of explosive charge sets in well 2 drilled along the route, are as follows. The height of the rising production is 20-50 m, the cross section is 1.0 to 6.0 m or more. The ends of the well 2 to a height of 2 m are saved. The diameter of the well 2 is 100-150 mm. There is no access to the uprising mine 1: from below it is blocked by turned-over rocks.

The device consists of a measuring set 3, folded down through the well 2 on a sling (cable) 4 by means of a movement drum 5 with a rotation and fixing mechanism (rotation and fixing mechanism not shown). A measuring drum 6 with two sections is also installed above the well 2 fixing the measuring threads 7 (in FIG. 1, sections of the measuring drum 6 are shown one above the other for clarity of the image) connected to the elements of the measuring set 3.

The measuring set 3 consists of a housing 8 (Fig. 2,3), measuring bars 9, 10 (Fig. 2) and 11, 12 (Fig. 3), mounting brackets 13, 14 (Fig. 2) and 15, 16 ( Fig. 3), a centering clamp 17 (Fig. 2) and an additional centering clamp 18 (Fig. 3), connected in the form of two rhombs located in mutually perpendicular planes. The measuring bars 9, 10 and I, 12, forming the upper parts of the rhombuses, are mounted on the housing 8 attached to the lifting sling 4, equipped with two depth marks (marks in Fig. Not shown), by which the depth of the measuring set 3 is determined.

The mounting rods 13, 14 and 15, 16, forming the lower parts of the rhombuses, are mounted respectively on the centering clamp 17 (Fig. 2) and the additional centering clamp 18 (Fig. 3), 7

freely moving along two guide rods 19 (Fig.2) and 20 (Fig.Z), mounted on the housing 8.

The movement of the centering clamp 17 and the additional centering clamp 18 is carried out by means of flexible connections in the form of measuring threads 7 through a measuring drum 6 with its two sections.

The disclosure of rhombs is carried out in two mutually perpendicular planes (figure 2, 3).

To measure the distances between the walls of the uprising workings of a larger size, the measuring arms 9, 10 and 11, 12 are provided with additional tips 21.

A device for measuring through the borehole the distances between the walls of the uprising excavated by the uninhabited method in the rock mass, works as follows. The measuring set 3 (Fig. 1) when folded (the set is folded in a straight line under the action of its own weight and is an elongated structure that freely passes through the borehole 2 with a diameter of 100 mm) by means of the drum 5 and the sling 4 are lowered through the borehole 2 into the riser 1 the required depth at which you want to determine the distance between

the walls of the rising production according to the marks on the sling 4. The drum 5 is fixed by a stop. Next, the lifting of the measuring thread 7 (figure 2) is carried out by means of a measuring drum 6 - its upper section (figure 1). When the centering clamp 17 is lifted by the mounting rods 13 and 14, the measuring rods 9 and 10 are lifted up against the walls of the rising workout 1. The height of the centering clamp 17 by means of the measuring thread 7 (Fig. 1) is fixed on the measuring drum 6 (or along a linear scale on a straight line plot near it).

According to the obtained size, on the calibration scale, the distance between the ends of the measuring rods 9, 10 is determined, which corresponds to the distance between the walls of the rising work 1. Then the distance between the walls of this working 1 is measured in a perpendicular plane, for which they are lifted by a flexible connection in the form of a measuring thread 7 (Fig. .3) by means of a measuring drum 6 (its lower section) an additional centering clamp 18. In this case, the mounting rods 15 and 16 are lifted, by which the measuring rods And and 12 are brought into contact the walls with the rising workings 1. Similarly, determine the height of the additional centering clamp 18, using the above-described method, determine the distance between the walls of the rising workings 1 in the plane of this cross section.

If the obtained four points are not enough to determine the area of the rising workout 1 at a given depth, the measuring set 3 is rotated by an angle of 45 ° and the distance between the walls is determined at another four points at the same depth. The contour of the cross section of the mine 1 is built on the basis of the obtained 8 points. At the same time, if necessary, the device allows you to get any number of points for constructing the contour of the section at any depth of the rising output 1.

If during measurements after lifting the centering clamp 17 and the additional centering clamp 18 to a certain height (the height is determined experimentally or by calculations), the ends of the measuring bars 9, 10 and I, 12 of the walls of the rising workout 1 did not come into contact, then additional tips are used to determine the larger sizes 21, extending the measuring bars 9, 10 and 11, 12. This measurement is carried out according to the method described above, and the calculation of the distances between the walls of the rising workings 1 is carried out using additional graduation elements, reading the elongated dimensions of the measuring bars 9, 10 and 11, 12.

Claims (2)

1. A device for measuring through the well the distances between the walls of the uprising excavated by the uninhabited method in the rock mass, including a housing with measuring rods, guides, a centering clamp, a movement drum and flexible couplings, characterized in that it is equipped with mounting rods and an additional centering clamp moreover, the measuring rods forming the upper parts of the rhombuses are pivotally mounted on the body in two mutually perpendicular planes and are attached to a lifting sling equipped with with ugly marks and displacement attached to the drum located outside the uprising mine, and the mounting rods forming the lower parts of the rhombuses are fixed on the centering and additional centering clamps that move freely along the two guide rods fixed to the housing by means of flexible connections in the form of measuring threads connected with sections of the measuring drum located outside the uprising workings, each section of the measuring drum is equipped with graduation elements to determine the distance m Between the ends of the measuring rods in the cross section of the rising production. 2. The device according to claim 1, characterized in that the measuring rods are provided with additional tips, and the graduation elements of the sections of the measuring drum are equipped with additional elements for calibrating the distance between the ends of the additional tips of the measuring rods in the cross section of the uprising.