Artificial bearing and method of their construction during the mining of steep seams

 

(57) Abstract:

The invention relates to the field of mining and can be used to control the roof during the mining of steep seams. The invention is characterized by the fact that artificial support, including flooring and backfill material laid on him with two fixing nodes. Each of them made in the form of a guide sleeve with a slot along the entire length, rigidly attached to the clamp cone, several pairs of hinged levers, one end of which is fixed directly on the guide sleeve, the other on the slide, moving the sleeve with an emphasis through the washer on the flooring. The flooring is made of two wedge-shaped bases, fixed lower variable height and the top placed so that they can move relative to the bottom, through which located at the bottom on the edges of the holes missed two ropes. The diameter of the holes of the base greater than the exterior diameter of the RAM and less than the outer diameter of the washer. The holes of the base from the side opposite to the installation of the fixing unit, performed with a chamfer. The method of construction of the artificial supports for the development of steep seams includes the construction of a series of platforms on about is whether multiple of the step size of the movement of the support, with a gap between the roof of the reservoir, the smaller size lumpy backfill material. Simultaneously with the laying of backfill material the bottom of the deck to hold the ropes, and the top move under the weight of backfill material against the roof of the reservoir, after which the rope is removed. The tab and removing the ropes operate behind the lines stope on one row. This solution increases the safety of operations is carried out and the possibility of building artificial supports without the presence of people in a mining face. 2 C. p. F.-ly, 3 ill.

The invention relates to the field of mining and can be used to control the roof during the mining of steep seams.

A device for lining installation in Stopes, including mounting the rope and the connection node of the rope with a block lining, and the connection node is made in the form housed in the through holes of the supports with free rotation on the ends of the mounting and dismantling of the tubes, composed of segments and interact with lugs attached to the rope along its length [1].

However, the connection node of the fence with rope unreliable under high loads from the base support and Dor during the mining of steep seams, taken as a prototype, which includes the construction of bases along the strike of the seam, for all its power and laying the backfill material on the base, which is erected in a checkerboard pattern, with backfill material placed by its gravitational movement of the overlying to underlying basis to education at all bases of the pyramids of backfill material [2].

However, when using this method there is a need in the presence of working stope in the wellbore space for the construction of bases for the backfill material, which reduces the security of the work and eliminates the implementation of this method in terms of the extraction of coal seams without the presence of people in a clearing face.

The present invention is to improve the safety of operations and the possibility of building artificial supports without the presence of people in a clearing face.

The task is solved in that the artificial support, including flooring and backfill material laid on him with two locking units, each of which is made in the form of a guide sleeve with a slot along the entire length, rigidly attached to the clamp cone, several pairs sharemedia on the sleeve with an emphasis through the washer on the floor, made of two wedge-shaped bases, fixed lower variable height and the top placed so that they can move relative to the bottom, through which located at the bottom on the edges of the holes missed two of the rope, the diameter of the holes of the base greater than the exterior diameter of the RAM and less than the outer diameter of the washers and the holes of the base from the side. opposite the installation of the fixing unit, performed with a chamfer.

The method of construction of the artificial supports for the development of steep seams, which includes the construction of rows of flooring along the strike of the seam in a checkerboard pattern and laying on him backfill material, characterized in that the flooring erect length equal to or a multiple of the step size to move the bottom lining, with a gap between the roof of the reservoir, the smaller size lumpy backfill material, simultaneously with the laying of backfill material the bottom of the deck to hold the ropes, and the top move under the weight of backfill material against the roof of the reservoir, after which the ropes extract, moreover, the tab and removing the ropes operate behind the lines stope on one line.

The invention is a base flooring, in Fig. 2 is a diagram of the artificial supports and the bottom lining in a mining face, in Fig. 3 shows the top and bottom of the floor in the section a-a, with backfill material.

Artificial support contains: bottom 1 base with 2 holes and chamfer 3, the upper base 4, the rope 5, the guide sleeve 6 with the slot 7, the clamp 8 to cone 9, several pairs of articulated levers 10, 11, RAM 12, the axis 13, a washer 14, 15 - ventilation drift, 16 - haulage drift, 17 - winch, 18 - mechanized pneumatic shoring, 19 - backfill material (rock pyramid), 20 - flooring, 21 - air bellows, 22 - line stope.

The method of construction of the artificial supports, as follows from the ventilation passage 15 to the haulage roadway 16 to dip, lower deck, consisting of two reasons 1 and 4. The bottom base may be, for example, is made of several wooden racks in the form of sleepers, arranged in several rows and each other in height, depending on the capacity of the reservoir is made in the form of a wedge and fastened together by means of metal brackets. The upper part of the base can also be made in the form of wooden wedges placed on the bottom perpendicular to dlia 1 and 4 put together with the help of the winch 17 under the action of its own weight and the two ropes 5, passed through the through hole 2 located in the lower part of the lower base 1. The bottom base 1 is fixed along the length of the rope with clamping hub, made of the guide sleeve 6 with a slot 7, clip 8 cone 9, rigidly attached to the sleeve, several pairs of hinged levers 10, 11, one ends of which are pivoted to the guide sleeve 6 and the other pivotally connected to the slider 12, freely around the guide sleeve 6, both lever pivotally connected to each other by an axis 13, and the slider 12 communicates with the lower base 1 by means of a washer 14, the inner diameter of which is smaller than the outer diameter of the slide, and the diameter of the RAM is less than the diameter of the hole 2 of the lower base 1. The base is oriented so that the longest side is parallel to the line of strike of the formation, and the base length "L" is equal to or a multiple of the step size of the movement supports "Z". After a descent of one of a number of bases to the deck 20, located on the haulage drift 16, close down another number, and reason have to dip in a checkerboard pattern. After installation of the bases 1 and 4 of the ventilation passage 15 they send backfill material rasklinivanie the lower and upper substrate 1 and 4 between the roof and the ground layer, and backfill material served on the second row of flooring from the line stope 22. On the basis of filling material, accumulating, forming a support in the form of rock pyramid 19. Upon receipt of backfill material on the base 1 and 4 c exceeds the angle of repose of the bulk material particles will slide down dip on the flooring 20 laid on the air bellows 21 mounted on the pair with the haulage roadway 16. Thus, in the developed space of lava formed the supports of the backfill material in the form of a pyramid 19, which will perceive themselves pressure rocks of the overlying strata. Then using the winch 17, located on the haulage roadway 16, into the ropes 5 of the second row from the line stope 22 impact force in the direction of haulage drift 16, resulting in the cone 9 will enter the hole 2 with a chamfer below the bottom of the base 1. Pivot levers 10, 11, touch the walls of the holes 2, will be formed by moving the slider along the guide sleeve 6. Resulting in locking the node passes freely through the holes 2 of the lower substrate 1 and the ropes 5 are extracted on the haulage roadway 16. The operation repeated.

Thus, the mounting Assembly and disassembly of the bases for the construction of backfill material, to perform all management operations roof without the presence of people in a clearing face.

Sources taken into account

1. A. S. N 1211417, M CL. E 21 D 23/00, 1986, N 6.

2. Ovcharenko, Century Technological processes of extraction of coal seams without the constant presence of people in a mining face (tutorial).- L., 1990, S. 74-75.

1. Artificial support, including flooring and backfill material laid on it, characterized in that the bearing is equipped with two locking units, each of which is made in the form of a guide sleeve with a slot along the entire length, rigidly attached to the clamp cone, several pairs of hinged levers, one end of which is fixed directly on the guide sleeve, and the other on the slide, moving the sleeve with an emphasis through the washer on the decking, which is made of two wedge-shaped bases, fixed lower variable height and the top placed so that they can move relative to the bottom, in which through located in the lower part of the edges of the holes missed two of the rope, the diameter of the holes of the base greater than the exterior diameter of the RAM and less than the outer diameter of the washers and the holes of the base side, protopope practicing steep seams, including the construction of a series of decks along the strike of the seam in a checkerboard pattern and laying on them backfill material, characterized in that the flooring erect length equal to or a multiple of the step size of the movement of the support, with a gap between the roof of the reservoir, the smaller size lumpy backfill material, simultaneously with the laying of backfill material the bottom of the base to hold the ropes, and the top move under the weight of backfill material against the roof of the reservoir, after which the rope is extracted, and the tab and removing the ropes carried out with the defense of the line stope on one row.

 

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