SU1583610A1 - Method and apparatus for lowering a sinkable lining - Google Patents

Abstract

The invention relates to mine construction. The goal - reducing the complexity of the work in the rocks. Cyclic lowering is supported by the force of the power cylinders as it increases. Before excavating the rock of each lowering cycle, the supports are rigidly connected to the rods of the power cylinders. The excavation of the rock is carried out under a suspended support. Before lowering the support under its lower end stack a pillow of plastic clay. The supports are lowered with the partial displacement of the clay cushion into the closed space. A device for implementing this method comprises lugs 2 installed with the possibility of permutation along the upper parts of the anchors 1, the stops 3, made in the form of two sections 8 and 9. The latter are arranged with the possibility of vertical movement relative to each other. The device also has a cage for c 7 and additional stops 6 rigidly mounted on the anchors 1 and mounted with the possibility of contact with the external surface of the stops 3. The casing at c 7 is connected to the external surface of the stops 6. The device has power cylinders, the rods 15 of which using clamps, they are connected to the mounting bracket. All structural elements of the device, except for anchors, allow reusable use. This device provides suspension of the roof support for the time of development and distribution of rock and allows the shell to be lowered without deviating from the design route. 2 sp.f-ly, 3 Il.

Description

ditch The excavation of the rock is carried out under a hanging crepe. Before lowering the support under its lower end stack a pillow of plastic clay. The roof supports are lowered with the partial displacement of the clay of the cushion into the fixed space. The device for the implementation of this method contains lugs 2 that are installed with the possibility of rearrangement along the upper parts of the anchors 1, the stops 3, made in the form of two sections 8 and 9. The latter are arranged with the possibility of vertical movement relative to each other. The device also has a tie-in at 7 and additional stops 6 rigidly mounted on the anchors 1 and mounted with the possibility of contact with the external surface of the stops 3. The strap-on at 7 is connected to the external surface of the stops 6. The device has power cylinders Alignment rods, the rods 15 of which are connected with anchoring fixture using clamps. All structural elements of the device, except anchors, allow multiple use. This device allows the suspension to be suspended at the time of the development and distribution of rock and allows the support to be lowered without deviating from the design route, 2 sec. f-ly, 3 ill.

The invention relates to mine construction and concerns the carrying out of shaft shafts by descending support in soft rocks containing rock layers, namely, methods for immersion of descending supports in them.

The aim of the invention is to reduce the laboriousness of work on the penetration of shafts in the rocks. FIG. 1 shows a suspended support; FIG. 2 - the position of the support after the next its lowering; in fig. 3, section A-A in FIG. one.

The method includes cyclic lowering of lining with power cylinders as it grows and excavates the rock. Before the last operation of each cycle, the lining is rigidly connected to the rods of the power cylinders and the rock is excavated under the suspended lining, under which the clay pad is placed under the bottom end of which. The cushion material is partially displaced into the fixing space, and the build-up lining is carried out after disconnecting it from the rods of the power cylinders.

The method is implemented using a device that includes a mechanism for excavating the rock, anchors 1 in the form of pile obliquely driven into the rock, eyelets 2, stops 3 pivotally fixed in them with brackets k and jacks 5 suspended on them (power cylinders), additional stops 6, rigidly fixed to the base x 1 and mounted with the possibility of contact with the external surface of the stops 3, and bounding to c 7, rigidly connected

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with the outer surface of the additional stops 6. The lugs 2 are capable of moving along and reassembling along the anchors (piles), and the stops 3 are made of two sections 8 and 9 that are coaxially mounted with the possibility of telescopic extension of the jacks for fastening to the lower support.

Immersion of the roof mount in the rock layer 10 by the proposed method is carried out as follows.

After intersection of soft rocks 11 when the knife part 12 approaches them, the sheath 13 of the block or tubing rings is rigidly fixed to the rods 15 of the jacks 5 and suspended on them. Under the shell 13, explosive destruction and excavation of rock 10 is carried out to a depth equal to the length of the rods 15 jacks 5 with search over the shell 13. To dispense the rock, a grapple 16 can be used as a mechanism for issuing the rock.

Before lowering the shell 13, the support under its lower end (knife part) 12 is placed a cushion of m

plastic clay 17. After complete development and excavation of rock 10 from the bottom to a depth equal to the length of the rods 15, the shell 13 is lowered by means of rods 15 of the jacks 5 o. This lowers the cushion clay 17 and partially displaces it into the fixed space, forming a clay layer 18, which helps to prevent horizontal displacements

After each lowering of the shell 13, it is released from the rods 15 and make their reverse course. After the rods 15 have been harvested, another ring 1 of shell 13 is mounted under them, and the cycle is repeated.

The device is mounted as follows.

Along the perimeter of the future stem, anchors-piles 1 are driven into the rock by known piling means, which almost always deviate when driven from a predetermined angle of. For each anchor 1, an additional stop 6 is rigidly attached, and moving the anchor 1 along the anchor 1, they fix it in a position that ensures the specified horizontal position of the jack 5. Using the hinges 19, the main stops 3 with the brackets A and jacks 5 are installed into the eyes 2. By moving section 8 out of section 9, the stops 3 place the jacks 5 at the required level, the sections 8 and the lugs 2 are fixed respectively to the sections 9 and anchors 1, for example, with locking pins (not shown) through the holes. The attachment of the upper end of the ring 1 of the shell 13 to the rods 15 is carried out by means of one of the known quick-release couplings.

All the structural elements of the descending device, except for the anchors 1, allow multiple uses.

The proposed device provides suspension of the roof support for the time of the development and release of rock and allows the shell 13 to be lowered without deviating from the design route.

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1 .. A method of submerging lowering lining, including cyclical lowering, by force of power cylinders as it grows and dredging, which, in order to reduce the labor intensity of the rocks, before excavation of the rock of each lowering cycle, the lining is rigidly connected to the rods the power cylinders, and the excavation of the rock is made under the suspended lining, while before lowering the lining under its lower end a cushion of plastic clay is laid, and the lowering of the lining is carried out to ensure partial displacement of the clay along the sweethearts in the fixed space.

2. Device for immersion lining, including anchors obliquely pinched in the rock, eyelets fixed in them, lugs fixed to the lugs with power cylinders and a mechanism for excavation, characterized in that, in order to reduce the laboriousness of work in the rocks, the eyelets are installed can be swapped along the upper parts of the anchors, and the stops are made in the form of two sections installed with the possibility of vertical movement relative to each other, and the device is provided with a braid and additional stops rigidly mounted on the anchors and mounted with the possibility of contact with the outer surface of the main stops, and the tied abutments are connected to the outer surface of the additional stops, with the rods of the power cylinders having clamps for connection with the overhead support.

Claims (3)

Claim 1 .. A method of immersing the lowering lining, including cyclical lowering of the lining by the force of the power cylinders as it builds up and the rock is excavated, characterized in that, in order to reduce the complexity of work in rock formations, before the excavation of the rock of each lowering cycle, the lining is rigidly connected to the rods of the power cylinders , and the excavation of the rock is carried out under the suspended support, while 5 by lowering the lining, a pillow of plastic gdina is placed under its lower end, and lowering the lining is carried out to partially displace the clay of the pillow in the fixing space. 2. A device for lowering the roof support, including inclined pinched anchors in the rock, eyes fixed to them, pivotally fixed 5 in the eyes lugs with power cylinders and a mechanism for excavating rock, characterized in that, in order to reduce the complexity of work in rock formations, lugs are installed with the possibility of rearrangement along the upper parts of the anchors, and the lugs are made in the form of two sections mounted with the possibility of vertical displacements relative to each other, 5 while the device is equipped with a strapping belt and additional stops rigidly fixed on the anchors and mounted with the possibility of contact with the outer surface of the main stops, and the strapping belt is connected to the outer surface of the additional stops, and the rods of the power cylinders have clamps for connection with the lower support. 15836Y