Stepping timbering

FIELD: construction and maintenance of tunnels, mining industry, possible use for mechanization of tunnel operations.

SUBSTANCE: timbering contains carrying frame with supporting elements and mechanism for movement, and collapsible screen sections of timbering held on the frame by means of hydro-cylinders. Carrying frame is made in form of flat working platform, on which hydro-cylinders of screen sections of timbering are held. In end zones of platform supporting elements are mounted on its upper and lower planes, made in form of at least paired, held in same transverse plane at an angle to each other, and at least paired in longitudinal plane at an angle to each other, telescopic spreaders with vacuum suckers mounted on their ends. Each spreader is provided with drive for telescopic mechanism and its rotation. Joints of spreaders and suckers are made spherical.

EFFECT: expanded functional capabilities of stepping timbering, increased reliability of technological process, simplified mechanism for moving the timbering and automation thereof, increased durability characteristics of timbering construction and provision of unobstructed movement of people and mechanisms along working timbering.

5 dwg

 

The invention relates to the construction and repair of tunnels, as well as to mining and is designed for mechanization of tunnel works.

Known formwork for the construction of the tunnel, based on the carrying frame (see RF patent № 727812, class E 04 G 11/22, 1978). This formwork is moved after completed works in the area of its location. The lack of mechanization of permutations of the casing leads to delays in its work.

Known mobile formwork, including spatial frame, mounted on the ski, located in the longitudinal guides, at the same time frame covered by the endless belts mounted on the roller support frame, and represents a formative elements (see RF patent № 1661430, CL E 21 D 11/10, 1988). This formwork is moved together with the frame on the ski, thus forming elements are moved together with the frame by means of endless belts. Mechanization moving this formwork significantly accelerate the execution of tunnel works, however, a complicated mechanism design movement and its synchronization with the movement of the forming elements leads to frequent breakdowns and forced maintenance outages workers. While an endless belt forming elements wear out quickly at idle during the movement of the casing, as rolled on all the irregularities of the inner surface of the tunnel.

The closest technical solution to the claimed invention is walking casing containing a carrier frame with the supporting elements and the mechanism of its movement and is attached to the chassis by means of hydraulic rams folding panel partitions of the casing (see RF patent № 296851, E 01 G 5/16, 1969). Mechanization of moving this casing is also quite time-consuming. You want to spend several consecutive operations to move the frame to the next working position. The transfer mechanism is a bulky design, it occupies much space in the tunnel, eliminating the use of additional equipment and promotion of people along the formwork.

The present invention is directed to the solution of the technical problem of extending the functionality of walking formwork, improve the reliability of the technological process, simplification of the mechanism for moving the formwork and its automation, improve the strength characteristics of the formwork and ensure the smooth movement of people and mechanisms along the working formwork.

The solution of a technical problem is achieved by the fact that in walking the mold containing the carrier frame with the supporting elements and the mechanism of its movement, and are fastened to the frame by means of hydraulic rams folding iMovie section of the casing, the base frame is made in the form of a flat working platform, on which are fixed the cylinders panel sections of the casing, and in the end zones of the platform pivotally mounted at its upper and lower surfaces of the supporting elements made in the form of at least pairs, mounted in the same transverse plane at an angle to each other, and at least a pair in the longitudinal plane at an angle to each other of the telescopic struts with pivotally mounted at their ends vacuum suction cups, each spacer is provided with a telescopic actuator mechanism and its turn connected into a single control system, and the hinge bars and suckers made ball.

The invention is illustrated by drawings.

Figure 1 shows the walking formwork, view And figure 2 (front view)figure 2 - the same, cross-section B-B in figure 1, figure 3 is the same, the first stage of movement of the casing, figure 4 is the same, the second stage of movement of the casing, figure 5 is the same, the section b-b In figure 2.

Walking formwork includes a carrier frame, provided with a flat working platform 1 and the supporting elements made in the form of at least pairs, mounted in the same transverse plane at an angle to each other of at least the pair in the longitudinal plane of the front of the lower telescopic struts 2 and 3 and at least a pair in the longitudinal plane of the front of the upper body is epicheskih spacers 4 and 5, and at least the pair in the longitudinal plane of the rear lower telescopic struts 6 and 7 and at least a pair in the longitudinal plane of the rear upper telescopic struts 8 and 9. The minimum number of spacers 2, 3, 4, 5, 6, 7, 8 and 9, providing sufficient stability of the platform 1, is equal to sixteen. All spacers 2, 3, 4, 5, 6, 7, 8 and 9 are connected with the platform 1 by means of ball joints 10 and are mounted at their ends by means of ball joints 11 of the suction Cup 12. The lower front and rear telescopic struts 2, 3, 6 and 7 mounted on the bottom surface of the platform 1, and the upper front and rear telescopic struts 4, 5, 8 and 9 attached to the upper surface of the platform 1 in its lateral zones.

Each strut pair 2, 3, 4, 5, 6, 7, 8 and 9 is supplied with actuator (pneumatic or hydraulic) its telescopic mechanism representing the rod 13 with the cylinder 14. Drives all paired spacers 2, 3, 4, 5, 6, 7, 8 and 9 are connected by a single mechanism for remote control (not shown), providing simultaneous movement of the spacers 2, 3, 4, 5, 6, 7, 8, 9 and their rotations around the ball joint 10 with respect to the platform 1, and turns the suction cups 12 around the hinge 11 relative to the spacers 2, 3, 4, 5, 6, 7, 8 and 9. Synchronizing the movement of the rod 13 relative to the cylinder 14 provides a smooth translational movement of the platform is 1 in a given direction.

Platform 1 is fixed to the cylinders 15 of the folding side panel sections 16 and lower section 17 of the casing. All the sections 16 and 17 have a semicircular shape, mimicking the inner surface 18 of the tunnel. The joints 19 sections 16 and 17 provide a tight seal in the working position. The outer surface of the suction cups 12 in contact with the inner surface 18 of the tunnel or processed layer 20, made in the form of rubber (or other elastic material) seals 21. All spacers 2, 3, 4, 5, 6, 7, 8 and 9, and the hydraulic cylinders 15 sections 16 and 17 are mounted on the platform 1 so that its Central part was used for the passage of workers and transportation of necessary equipment.

Walking formwork works as follows.

In the working position walking formwork platform 1 is located so that its front pair of lower and upper struts 2, 3, 4 and 5 are in the area of the unprocessed area of the tunnel, and the rear pair of upper and lower spacers 6, 7, 8 and 9 are in the area of the processed section of the tunnel. All spacers 2, 3, 4, 5, 6, 7, 8 and 9 pairs are at the same angle to each other and rigidly fixed their rods 13 in the cylinders 14, the suction cups 12 with cuffs 21 evacuated, providing a snug fit to the inner surface 18 of the tunnel or to the treated layer 20. This working progenitors 1 prevents any movement and vibrations, even when travelling equipment on it, ensuring the adhesion of the concrete layer 20 with the inner surface 18 of the tunnel and ensuring the safety of people on the platform 1.

At the end of the cycle of cleaning, concreting, tiling or other actions in the tunnel platform 1 walking formwork together with all necessary equipment move further along the tunnel (and the design of the mechanism move allows you to move the formwork both forward and backward). Platform 1 is moved as follows. The first stage of the permutation is shown in figure 3. First, with the help of hydraulic cylinders 15 are formed side panel section 16, then rises slightly lower panel section 17. The command to start the movement of the platform 1 is supplied from a single mechanism, remote control for all rod 13 and the cylinder 14 paired spacers 2, 3, 4, 5, 6, 7, 8 and 9. At this point pair of struts 2, 4, 6 and 8 are shortened due to the fact that their rods 13 are drawn into the cylinders 14, turning relative to the hinges 10 and 11, with the pair of spacers 3, 5, 7 and 9 are extended due to the fact that their rods 13 extend from the cylinder 14, to rotate around hinges 10 and 11. Platform 1 moves smoothly in a given direction, without changing the distance to the side, upper and lower parts of the tunnel than cluzaud shaking equipment, sadewa what s behind the wall of the tunnel. Then the suction Cup 12 struts 2, 4, 6 and 8 are detached from the surface 18 and layer 20 and further elongation of the rod 13 relative to the cylinder 14 of the struts 3, 5, 7 and 9 move along the movement of the platform 1 to the maximum length of the rods 13, and then from these suckers 12 is pumped out the air, and they are fixed in the new position. Then detach the suction Cup 12 next group of paired struts 3, 5, 7 and 9, and they are catching up in the direction which moves the platform 1 due to the fact that the rods 13 of the spacers 2, 4, 6 and 8 are shortened, tightening to other pairs.

The second stage moving the platform 1 is shown in figure 4. Movement of the platform in the same direction continues due to the fact that struts 2, 4, 6 and 8 are extended, and the spacers 3, 5, 7 and 9 are shortened. Then the suction Cup 12 struts 2, 4, 6 and 8 again disconnected from the surface 18 and layer 20 and the extension rod 13 relative to the cylinder 14 to again move along the movement of the platform 1 to the maximum length of the rods 13, and then from these suckers 12 is pumped out the air, and they are fixed in the new position. At the last stage of movement of the rods 13 all spacers 2, 3, 4, 5, 6, 7, 8 and 9 achieved their operating position and the operating position of the platform 1, as shown in figure 2. If the dimensions of the tunnel are large enough to use a longer telescopic mechanisms spacers 2, 3, 4, 5, 6, 7, 8 and 9, in this case, quantity is of permutations suction cups 12 is reduced.

The design of formwork can use any equipment for processing the inner surface 18 of the tunnel, including motorized, ensures the smooth progress of people and equipment on the platform 1, copies the terrain and all the irregularities of the inner surface 18 of the tunnel, except the beating of her platform 1 with equipment and people, simple in operation and maintenance, mobile, provides movement in all directions, including at the fork in the tunnels.

Thus, the claimed invention solves the technical problem of extending the functionality of walking formwork, improve the reliability of the technological process, simplification of the mechanism for moving the formwork and its automation, improve the strength characteristics of the formwork and ensure the smooth movement of people and mechanisms along the working formwork.

Walking casing containing a carrier frame with the supporting elements and the mechanism of its movement and is attached to the chassis by means of hydraulic rams folding panel partitions of the casing, characterized in that the supporting frame is made in the form of a flat working platform, on which are fixed the cylinders panel sections of the casing, and in the end zones of the platform pivotally mounted on the upper and igna planes supporting elements, made in the form, at least, paired, fixed in the same transverse plane at an angle to each other, and at least doubles in the longitudinal plane at an angle to each other of the telescopic struts with pivotally mounted at their ends vacuum suction cups, each spacer is provided with a telescopic actuator mechanism and its turn connected into a single control system, and the hinge bars and suckers made ball.



 

Same patents:

FIELD: mining industry.

SUBSTANCE: invention can be used for delivering concrete mix at fastening mine workings to place of concreting. Proposed pneumatic concrete-placing machine consists of vessel with charging and discharge holes, car, concrete line and pneumatic system. Pipe is located on bottom of vessel to supply compressed air from pneumatic system to zone of influence of discharge hole equipped with check valve, bottom of vessel being made inclined. Concrete line is furnished with ejecting device and manifold in form of elbow installed coaxially with ejecting device. Ejecting device is arranged on lower section of concrete line directly after discharge hole of vessel, and manifold is arranged after ejecting device. Part of concrete line after manifold is made flexible, corrugated, and ejecting device and manifold are installed with possibility of uncoupling.

EFFECT: improved efficiency of operation owing to prevention of formation of air locks in concrete line and accumulation of mix at bottom of vessel.

2 dwg

The invention relates to the field of underground construction and can be used in the construction of tunnels for different purposes

Tunnel shield // 2184237
The invention relates to underground construction, in particular for the construction of tunnels using the tunnel shields with a sliding formwork, and can be used in the construction of underground structures from monolithic extruded concrete

The invention relates to underground construction and can be used in the construction of tunnels and shafts

The invention relates to underground construction, namely, devices for the construction of underground structures from monolithic extruded concrete, and can be used in the construction of tunnels and shafts

The invention relates to underground construction, and in particular to methods and devices for the construction of underground structures from monolithic extruded concrete, and can be used in the construction of tunnels for various purposes, and for the construction of vertical shafts
The invention relates to the mining industry and can be used in the construction of roof support in mines

The invention relates to the field of underground construction and can be used for the manufacture of tunnels and other underground structures

The invention relates to the field of underground construction and can be used in the manufacture of tunnels using the shield driving

The invention relates to mining and can be used in underground development of powerful horizontal flat and sloping ore and non-ore deposits, in particular, to protect and maintain mezhdurebernyh pillars

FIELD: mining industry.

SUBSTANCE: invention can be used for delivering concrete mix at fastening mine workings to place of concreting. Proposed pneumatic concrete-placing machine consists of vessel with charging and discharge holes, car, concrete line and pneumatic system. Pipe is located on bottom of vessel to supply compressed air from pneumatic system to zone of influence of discharge hole equipped with check valve, bottom of vessel being made inclined. Concrete line is furnished with ejecting device and manifold in form of elbow installed coaxially with ejecting device. Ejecting device is arranged on lower section of concrete line directly after discharge hole of vessel, and manifold is arranged after ejecting device. Part of concrete line after manifold is made flexible, corrugated, and ejecting device and manifold are installed with possibility of uncoupling.

EFFECT: improved efficiency of operation owing to prevention of formation of air locks in concrete line and accumulation of mix at bottom of vessel.

2 dwg

Stepping timbering // 2290512

FIELD: construction and maintenance of tunnels, mining industry, possible use for mechanization of tunnel operations.

SUBSTANCE: timbering contains carrying frame with supporting elements and mechanism for movement, and collapsible screen sections of timbering held on the frame by means of hydro-cylinders. Carrying frame is made in form of flat working platform, on which hydro-cylinders of screen sections of timbering are held. In end zones of platform supporting elements are mounted on its upper and lower planes, made in form of at least paired, held in same transverse plane at an angle to each other, and at least paired in longitudinal plane at an angle to each other, telescopic spreaders with vacuum suckers mounted on their ends. Each spreader is provided with drive for telescopic mechanism and its rotation. Joints of spreaders and suckers are made spherical.

EFFECT: expanded functional capabilities of stepping timbering, increased reliability of technological process, simplified mechanism for moving the timbering and automation thereof, increased durability characteristics of timbering construction and provision of unobstructed movement of people and mechanisms along working timbering.

5 dwg

FIELD: construction.

SUBSTANCE: invention can be used namely for ensuring tightness of joints in reinforced concrete tunnel blocks routed in conditions of non-aggressive ground water, as well as for performing waterproofing. Mixture for waterproofing and concreting tunnel linings includes portland cement without any additions with activity of not less than 25.0 MPa in 1 day, expanding sulfoaluminate component- mixture CaO:Al2O3:SO3 at molar ratio (3.1-3.5):(0.9-1.2):(2.2-2.6), fine cellulose fibre with fibres 0.03-1.0 mm long, copolymer of vinyl acetate and vinyl versatate, tartaric acid or its soluble salts and quartz sand with particle size of 0.1-2.5 mm, at the following component ratio, wt %: the above portland cement 45-50, mixture CaO:Al2O3:SO3 2.5-3.5, tartaric acid or its soluble salts 0.010-0.025, copolymer 0.2-0.5, cellulose fibre 0.1-0.2, quartz sand - the rest.

EFFECT: simplifying and reducing the process durability, increasing initial strength of concreting material obtained from mixture, increasing thixotropy of mixture and preventing it from being slipped from ceiling and vertical surfaces, improving its sanitary characteristics.

7 ex, 1 tbl

FIELD: mining.

SUBSTANCE: construction of cement hopper for mining machine is an individual element. Mining machine is intended to drill holes in the rock and to pump cement to the holes, and includes mixer, cement hopper and supply device for supplying cement from lower cement hopper end to the mixer. At that, mining machine is equipped with moving device for moving the cement hopper between the position of being used at the top of the mining machine and the position of filling, which is different from the use position.

EFFECT: easy and simple loading and use of the mining machine hopper by workers.

6 dwg, 21 cl

FIELD: mining.

SUBSTANCE: method includes filling gaps with the help of flexible curb, which is a tight container sewn from hose of strong watertight cloth, shaped as a sack or bag closed at both ends. Valves with holes are installed in upper corners of flexible curb. One valve is intended to feed cement-containing mixture into the container, and the second one - for air outlet from filled space. The flexible curb is evenly laid behind course strengthening space, and cement-containing material is injected through one of valves, at the same time air is exhausted from filled space via the other valve.

EFFECT: high-quality and efficient filling of gaps in mining courses.

1 dwg

FIELD: construction.

SUBSTANCE: underground facility lining has a spatial reinforced woven frame corresponding to an underground facility contour and concrete. At the same time the spatial reinforced woven frame comprises closed external and internal contours connected to each other by two external circular elements. Besides, the frame also comprises internal solid partitions forming tight chambers, where internal partitions with arranged holes are located. Tight chambers are equipped with valves connected to the inside of the underground facility. Besides, for each tight chamber one valve is installed for filling with air, and the other one - for its filling with concrete. The spatial reinforced woven frame may be arranged from a waterproof high-strength fabric reinforced with aramide fibres.

EFFECT: increased load-carrying capacity and reliability of tunnel walls reinforcement.

2 cl, 4 dwg

FIELD: mining.

SUBSTANCE: method to erect an underground mine with shield tunnelling using elements of an assembled circular lining of a support consists in mining soil with a mechanised shield. Plugging of the space behind the lining is carried out via holes in elements of a tubing support with a grouting mortar. At the initial stage of tunnelling a bottomhole is mined, and a part of the space behind the lining is filled at the length of 0.25-0.75 of the length of the element of the assembled circular lining of the support behind the first ring after the shield in the lining of the tubing support with a long-setting grouting mortar. The next stage of mining at the length of 0.5-1 of the length of the element of the assembled circular lining of the support is carried out with supply of the grouting mortar into the space behind the lining with a setting accelerator. At the stage of process shutdown of a shield for assembly of the next ring of the tubing support, the pressure of the grouting mortar in the space behind the lining behind the first ring after the shield for lining of the tubing support is maintained by means of the long-setting grouting mortar into the area of the section of the space behind the lining, initially filled with the long-setting grouting mortar. Further stages of soil mining and plugging of the space behind the lining are repeated.

EFFECT: higher efficiency and improved manufacturability of performed works, reduced labour intensiveness of overcoming emergency situations that occur in process of tunnelling.

4 cl

FIELD: mining.

SUBSTANCE: erection method of a liner of inclined or horizontal shafts provides for construction in the inclined or horizontal shaft of the mine working of a supporting frame with scaffolding for performance of work, which forms at least two parts corresponding to the arch surface. The following is performed during work execution: anchors are installed, which fix the frame in the mine working shaft; a set of screw turnbuckles determining the design position of the arch is fixed on the scaffolding and in upper part of the arch bottom; a set of jacks determining the design position of the arch is fixed on the scaffolding and in the lower part of the arch bottom. A sheet bottom of the arch is fixed on the supporting frame; a shield bottom of a tray is suspended on movable beams of the supporting frame; laying of concrete mixture, dismantling of the formwork and movement of the supporting frame in inclined or horizontal shaft of the mine working is performed.

EFFECT: improving erection quality of horizontal mine workings owing to improving location accuracy of a formwork and due to quality of concrete application onto the shaft surface.

2 cl, 2 dwg

FIELD: mining.

SUBSTANCE: mortar is mechanically activated at disintegrator. Motor is prepared at sinking platform. Crushed stone and motor are laid in layers in jud over lining.

EFFECT: lining of shafts at high final hardness of concrete.

FIELD: mining.

SUBSTANCE: invention relates to the mining industry and can be used when mining comminuted ore deposits, including heavy and rich, overlain with soft mantle rocks. The chamber method of mining the heavy, valuable, comminuted ore deposits comprises sectoral mining of ore, followed by the formation of a hollow chamber in the form of a hexagonal prism. A dome preventing overhead caving is formed preliminary in over-ore rock mass of overlying rocks over cellular chamber. Under the dome in each section the chamber walls are formed. The timbering is created for the walls of hollow chambers followed by backfilling of concrete in it, successively from top to bottom to the entire depth of the ore body in each sector. The adjacent chambers are made in a similar manner to the formed chamber adjacent to it to form a unitary chamber cell structure. The chambers are connected by passages for easy operation.

EFFECT: invention enables to provide formation of vertical cell chambers with their subsequent use as an underground storage facility or premises for metallurgical production processes, reduction of costs for mining ore deposits.

2 cl, 6 dwg

Up!