SU1553610A1 - Lining of vertical working - Google Patents

Abstract

The invention relates to the construction of underground engineering structures for fastening walls of trenches, pits and other vertical workings. The purpose of the invention is to reduce metal consumption and improve working conditions. Guides (H) 3 with longitudinal grooves 8 are hingedly attached to vertical posts. In this case, H 3 are connected in pairs with devices in the form of lanyards 7 for moving H 3 in the horizontal plane. In the slots 8, resilient fencing shields are fixed with fixing elements 5 located at their ends. On each H 3 leg, they are offset relative to one another by an amount equal to the thickness of the fencing shield. Racks are attached to the mechanism of fixing the racks in a vertical position, made in the form of a ground anchor. When the guides are installed, the distance between them is adjusted by turning them on the hinges. By increasing the length of the lanyards 7, they give tension to the shields. 5 il.

Description

The invention relates to the construction and relates, in particular, to the construction of underground engineering structures for fixing walls of trenches, trenches and other vertical workings.

The aim of the invention is to reduce metal consumption and improve working conditions.

FIG. 1 shows a support, the general view of FIG. 2 is a view A of FIG. M in FIG. 3 shows the node I in FIG. 2, in FIG. 4 shows a section BB in FIG. 2; in fig. 5 is a section through BB in FIG. 3

The support of vertical development contains vertical posts 1 to which, by means of a hinge 2, guide 3 is attached, into which fencing shields 4 are installed. The shields 4 are made elastic with a predetermined curvature and have fixing elements 5 at the ends made in the form of thickenings. The hinges 2 of the mounting of the guides 3 to the vertical posts 1 are displaced relative to each other by an amount equal to at least the thickness of the enclosing shield 4.

The free ends of the guides 3 by means of the hinges 6 are interconnected in pairs by mechanisms for moving the guides made in the form of lanyards 7, and are equipped with grooves

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8, which includes locking elements 5 of fencing shields).

A ground anchor 9 was used to fix the racks 1 in a vertical position.

The fastening of the walls of the vertical workings with the help of this support is carried out as follows.

Along the production contour to a depth below the design mark, vertical stands 1 are drilled using the means of mechanization and fixed to the soil anchor 9.

Begins layer-by-layer excavation in the excavation circuit by an earth-moving mechanism. When deepening to the height of the fencing shield k, the guides 3 are hung on the hinges 2, closest to the developed wall of the excavation. In the grooves 8 of the guides 3, the upper enclosing boards C are supported by a convex plane in the direction of the excavation ground, while the distance between the guides 3 is adjusted by turning them on the hinges 2. Then the opposite guides 3 of each rack 1 are connected by hinges 6 to each other lanyards 7.

By increasing the length of the lanyards 7, the voltage is applied to the boards 4 by inserting one of the guides 3 of the legs 1 of the stopper-retainer (not shown) into the design of the hinge joint.

With further sequential excavation, fencing panels are installed similarly to the first

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row in the slots 8 of the respective guides 3.

The lining is dismounted from the bottom by relieving the tension with the lanyards from the lower shields, after which one end of the lanyard 7 is released. At the same time, even with the possible release of rock, the shield does not fall out of the grooves of the guides.

Fencing shields 4 are removed together with guides 3 and with lanyards 7 with a lifting mechanism. In a similar way, subsequent sa supports are removed.

After removal of the enclosing elements, the anchors 9 and the vertical supports 1 are removed by a lifting mechanism.

Claims (1)

Invention Formula / The support of the vertical development, including vertical racks with guides with longitudinal grooves, fencing shields with locking elements on the ends, which are included in the grooves of the guiding vertical racks, and the mechanisms of fixing the racks in a vertical position, so as to reduce the metal capacity and the improvement of working conditions, the guides are hinged on the vertical uprights and are pairwise interconnected by means of devices for moving the guides in the horizontal plane, while the Lugs on each rack are offset one relative to another by an amount equal to the thickness of the fencing shield, and the shields are made elastic. JS8.1 Vida Thebes. 2 III FIG, it CDi / g. five