The method of penetration and maturity mining and device for its implementation

 

The invention relates to the mining industry and can be used with sinking and redemption mining. It is aimed at enabling the movement of the shield both forward and backward to repay the generation after her sinking without subsidence of the earth surface. The method includes the development of the breed, its transportation, erection of supports and moving the shield to the face. For repayment generate the shield is moved in the opposite direction to the mouth of the generation with simultaneous supply zabudovaneho material. In the shield with a face set supporting element, remove part of the lining, the space formed in front of the supporting member fill zabudovanym material. Then simultaneously transmit the force to the shield for movement to the mouth of developing and supporting element to move along the working side of the face and pre-zabudovaneho material. The device consists of a tunneling shield with the case of the three parts. The front part is made in the form of a knife sheath, in the middle along its perimeter placed the jacks move the shield, and the tail part of the body is in the form of a shell for the construction of the liner. The shield has a supporting element mounted with fosmon knife shell casing. The hydraulic Jack to move the support element is installed in the middle part of the housing with a possibility of simultaneous repulsion from his shield. Knife sheath made of inner and outer conical cylindrical blade rings. The jacks move the shield is installed with the possibility of connection with rigidly fixed on the mouth of the mine workings rods with the possibility of pulling it to the side supports. 2 S. p. f-crystals, 2 Il.

The invention relates to the mining industry and can be used for repayment of mines.

The known method (1) sinking mines, which produce the development of rock (soil) in the bottom front of the blade ring tunnel shield, loading of the breed and its transportation, lining (lining) of the rings, move the shield forward on the bottom due to the shield connection of hydraulic jacks, cylinders are rigidly fixed in the middle (base) part of the shield, and rods special shoes rest against the end face of the stationary ring erected lining (lining). After moving the shield on the width of the ring supports the rod shield hydraulic jacks cleaned to its original position and erect new ring lining, for the essence and the achieved result.

The disadvantage of this method is that it cannot be used for repayment of mines.

The basis of the invention is to develop a way of sinking mines, which is based on the movement of the tunneling shield in the opposite direction from the bottom to the mouth of the mine workings with simultaneous supply zabudovaneho material in the space between the tunneling shield and the face that you need to repay the excavation and prevent collapse of the breed and subsidence of the earth's surface.

The task is solved in that a method of sinking mines, including the development of the breed in the pit, loading and transportation, the construction of the lining and the movement of the shield forward to the bottom of excavation, in which, according to the invention, the tunneling shield is moved in the opposite direction from the bottom to the mouth of the mine workings with simultaneous supply zabudovaneho material, with the shield from the bottom set supporting element, remove part of the lining, the space formed in front of the supporting member fill zabudovanym material, then simultaneously transmit the force on the tunnel shield for movement toward the mouth of the mine workings is Arial.

The operation to move the tunneling shield in the opposite direction from the bottom to the mouth of the mine workings with simultaneous supply zabudovaneho material and its compaction necessary to prevent subsidence of the earth surface at maturity mining, which is a prerequisite for underground work. At the same time, a necessary condition for repayment is simultaneous transmission to the supporting element for movement in the direction of the face for the pre-zabudovaneho material and connected with a fixed set of longitudinal rods of the hydraulic cylinders move the tunneling shield for its movement in the opposite direction towards the mouth of the production.

A device (2) for sinking mines, which represents a tunneling shield comprising a metal shell (case), usually cylindrical in shape, consisting of three main parts. The front part is made with a cylindrical cutting edge (knife sheath or protruding visor) in the upper part of the face. The middle part of the shell (body) is a reference. It placed around the perimeter hydraulic jacks move the tunneling shield. The tail portion of the device is the closest analogue device according to this invention by the technical essence and the achieved result.

The disadvantage of this tunnel shield is that its design does not provide the ability to move backward, what is needed to repay excavation.

The basis of the invention is to develop a tunneling shield with such structural elements and their relationships that would ensure repayment of the excavation and prevent subsidence of the earth surface due to the introduction of the support element with hydraulic jacks his move, and setup data of hydraulic jacks so that when the transfer of their efforts at the same time was the repulsion of the shield support element and the pulling in of the liner of the shield.

The task is solved in that the proposed tunnel shield comprising a body consisting of three parts, the front of which is arranged in the form of a knife sheath, in the middle part along its perimeter posted by hydraulic jacks move the tunneling shield and the tail part of the body is in the form of a shell for the construction of the support, which, according to the invention, equipped with a mounted for movement relative to the longitudinal axis of the hull supporting member made with the enta, established in the middle part of the housing with this knife sheath is made of inner and outer conical cylindrical cutter rings, hydraulic jacks move the tunneling shield is installed with the possibility of connection with rigidly fixed on the mouth of the mine workings terminals with pull-tunneling shield into the liner, and hydraulic jacks to move the support element is installed with the possibility of simultaneous repulsion from his shield.

Distinctive features related to the introduction and establishment of the support element with hydraulic jacks, move, and establishing hydraulic jacks with simultaneous pulling and pushing away, provide drilling shield movement in the opposite direction from the bottom to the mouth of the mine workings with simultaneous pressing zabudovaneho material that, in turn, ensures the repayment of excavation.

In Fig.1 and 2 schematically depicts the principle of the invention. In Fig.1 shows a longitudinal view of the shield as it moves forward. In Fig.2 shows a longitudinal view of the shield during its rearward movement.

The device is proh ostoja of the two cutter rings 1 and 2, of which the ring 1 is external and is made cylindrical, and the second inner ring 2 is made conical. In the Central part of the body, which can be made in the form of a support ring 3, on the perimeter posted by hydraulic jacks 4 move the tunneling shield and hydraulic jacks 5 to move the support element 6 (aperture), which podpisovat zabutovochnyh material in the mine workings.

Hydraulic jacks 5 of the support element 6 is connected with the support ring 3 of the shield and allow the element 6 to move relative to the body of the shield along its axis. In addition, the hydraulic jacks 5 additionally facilitate the transfer tunnel shield in the opposite direction from the bottom to the mouth of the mine workings.

Knife ring 1 and 2 can be collapsible and consist of connected segments. The caudal part of the body is in the form of a shell 7, consisting of segments, under the protection of which assemble and disassemble the support 8. The support is collected from units in the ring of special fasteners (bolts, pins) that these same ring at the same time connected in the axial direction.

For the reverse movement of the tunneling shield fasteners stacked rings connect the press 9, through a special process vents made in the lining 8. Longitudinal rods 9 fixedly mounted on the mouth of the mine workings. In this case, the rod of his hydraulic jacks through the shoes 10 are fixed to the fixed sectional longitudinal rods 9.

During tunneling excavation and movement of the tunneling shield in the forward direction to move the breed is used, for example, truck, pipeline or other mechanisms (not shown). Hydraulic jacks are included in the hydraulic system (not shown) controls the movement of the tunneling shield, which also includes a pumping station, equipment, hoses, etc.,

The invention is implemented as follows.

Tunneling cycle begins with the development of the face and loading of soil in the bucket, floating on the trolley. Forward shield move hydraulic jacks, cylinders are rigidly secured to the support ring 3 and the rod - special shoes rest and push against the previously laid lining. The hauling rocks produce shunting winch in a special bucket on the cart. Blocks lining on this cart serves to drilling shield. After moving the tunneling shield forward on the width Kenai generation, for the movement of the tunneling machine in the opposite direction, producing the remounting of hydraulic jacks and mounting of the support element 6. To do this, remove the inner blade ring 2 and under the protection of the outer blade ring 1 set supporting element 6, which cover the whole cross-section of the ring 1. Knife sheath made of two rings, the inner of which is tapered, because for the promotion of the shield forward, you need to overcome considerable resistance of the breed. In known constructions of the tunnel shields to overcome significant resistance breeds commonly knife ring perform with the outer cylindrical cutting edge, with projecting canopy or entirely conical shape. For the claimed invention, this design is unacceptable, because the movement of the shield back shield (the conical shape of the knife sheath) will interfere, so when you reverse the course of the tunneling shield knife ring conical disassemble.

Disassemble the next ring lining 8, under the protection of the shell 7 of the shield, raise the hydraulic jacks 4 move the shield, shoes 10 which are fixed to the fixedly mounted on the mouth produce longitudinal rods 9, which carry potagia the Tami 5 move the supporting element 6 from the bottom inside of the shield and into the space formed simultaneously serves zabutovochnyh material, for example, a conveyor or pump depending on the type zabudovaneho material. Then include additional hydraulic jacks 5 on a direct course, and the support element 6 is moved along the axis of generation of a side of the face, producing, thus, the seal zabudovaneho material over the entire area of the face and the simultaneous repulsion of the support element 6 from the tunneling shield.

Simultaneously with actuation of hydraulic jacks 5 to move the support element 6 on a direct course include hydraulic jacks 4 move the shield on the reverse, the load from them is transmitted in fixed longitudinal rods 9 at the mouth of the tunnel (not shown), thereby eliminating the load on the annular support, and the shield is moved along the axis of generation in the direction of the lining towards the mouth of the mine workings. Thus, at maturity mining is pulling the tunneling shield into the liner to the mouth of the mine workings and the simultaneous repulsion of the support element 6 of the shield, which further facilitates the movement of the shield reverse.

After completion of the full stroke of the hydraulic jacks 4 move the shield disconnect shoes 10 from the stationary zagorny element 6, before which fill the newly formed space zabudovanym material, such as concrete, rock, mixture, etc. again podpisovat supporting element 6 and produce shifting of the shield in the previous sequence.

The present invention, by providing a tunneling shield the opportunity to move not only forward but also backward, allows you to repay excavation after excavation without subsidence of the earth surface. At the same time, the invention allows to extract the tunneling shield this design of mine workings for reuse.

Sources of information

1. In mining and underground construction. Moscow, Publishing house of the Academy of mining Sciences, 2001. T. II. S. 58.

2. In mining and underground construction. Moscow, Publishing house of the Academy of mining Sciences, 2001. T. II. C. 35-39.

Claims

1. The method of penetration and maturity of mine using the tunneling shield, characterized in that it includes the development of the breed in the pit, loading and transportation, the construction of the support, the movement of the tunneling shield forward to the bottom of excavation, and to repay excavation prohodke the adjustment of the material, while in the tunneling shield with a face set supporting element, remove part of the lining, the space formed in front of the supporting member fill zabudovanym material, then simultaneously transmit the force on the tunnel shield for movement toward the mouth of the mine workings and on the supporting element to move along the working side of the face for the pre-zabudovaneho material.

2. Device for sinking and redemption of mines, which represents a tunneling shield, characterized in that it comprises a body consisting of three parts, the front of which is arranged in the form of a knife sheath, in the middle part along its perimeter posted by hydraulic jacks move the tunneling shield and the tail part of the body is in the form of a shell for the construction of lining and tunnel shield is supplied mounted for movement relative to the longitudinal axis of the hull supporting member, is arranged to overlap the entire cross-section of the knife housing, and hydraulic jacks to move the support element mounted in the Central part of the body, this knife sheath is made of an inner conical and is the possibility of connecting with rigidly fixed on the mouth of the mine workings rods with the possibility of pulling it to the side supports, and hydraulic jacks to move the support element is installed with the possibility of simultaneous repulsion from his shield.

 

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FIELD: mining industry.

SUBSTANCE: device has frontal, two side and two conical working tools with rock-destroying tools on outer surfaces, drives, rigidly connected to axes of each working tool, and displacement mechanism, connected to guides, placed at angle relatively to each other, which angle is determined from mathematical expression. Frontal and each of side working tools are made in form of two rotation bodies, having arced forming lines with given value of convexity. Axes of frontal working tool and axes of two conical working tools are rigidly connected to guides, axes of upper rotation body of frontal working tool being displaced relatively to axis of its lower rotation body towards pit-face, and axes of each pair of side working tools are jointly connected to each other and to guides. Frontal working tool may be made in form of several modules.

EFFECT: higher efficiency.

2 cl, 4 dwg

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