RU2534126C2 - Tunnel tubing ring for underground structures of subway - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: tunnel tubing ring comprises cast iron lining of a tunnel assembled from a row of joined metal tubings each made in the form of cylindrical segments connected to each other via holes by bolted joints. On the inner surface of the back of each segment there are internal round stiffening ribs that form internal caissons. The ring is equipped with a tray block made of a reinforced concrete part and a metal tray board made in the form of a box-shaped cast iron ingot of rectangular profile and a cast iron tubing. The cast iron tray board has a flat back of rectangular shape that changes into radial boards to form two internal caissons. In the boards of the specified caissons there are holes, via which the specified board is connected with the help of bolted joints with hydraulic insulation and pressing washers both with the cast iron tubings of its own ring and the tray board. On parallel and radial boards there are chased grooves for further sealing of board joints.

EFFECT: provision of tying of tubing rings, reduced labour intensiveness of horizontal section planning in a tunnel, improved hydraulic insulation of a tubing ring, simplified process of support assembly.

4 cl, 13 dwg

Description

The invention relates to devices for fastening underground mines, passable by the caisson method in the construction of subways, namely, the design of tubing rings installed for fastening horizontal and inclined tunnels of subways and other structures.

The existing cast-iron tubing lining, assembled from tubing rings, interconnected by bolted joints with sealing elements, secures the production in the ground, protects the interior of the tunnel from water and perceives the loads provided for by SNiP II-40-80. Despite the positive qualities of the existing tubing lining, it also has drawbacks in that it involves the high complexity of planning a horizontal plane in a tunnel for laying a rail track, as well as the lack of dressing between the tubing rings, which reduces the rigidity of the tunnel itself.

A device for attaching mine workings, for example, mine shafts, including metal tubing made in the form of a cylindrical segment with contouring internal radial and circular flanges and holes, stiffeners forming internal caissons, external circular and radial ribs (Mining. Encyclopedic reference book, t.4, M., Ugletekhizdat, 1958, p. 157-160). The disadvantages of such tubing include the presence of cruciform intersections in its design, in which casting defects occur that reduce the bearing capacity of the tubing, uneven back between the system of external and internal ribs, as well as uneven cross-section at the flange due to the fact that the outer ribs are flush with end surface of the radial side.

These disadvantages are eliminated in another well-known metal tubing for attaching mine workings, which is made in the form of a cylindrical segment, including contouring inner radial and circular flanges with holes for bolts, inner circular stiffeners forming inner caissons, outer circular and radial ribs that are located relatively each other in a checkerboard pattern and thereby increase the rigidity of each individual tubing box (AS USSR No. 796432, class E21D 5/10, published in Bulletin No. 2, 1981).

However, this design of metal tubing, taken as a prototype, is also not without drawbacks, which include the difficulty of providing reliable waterproofing of the tubing ring, especially in its lower part, the lack of bandaging of joints between the tubing of the joined rings in the tunnel, the high complexity of manufacturing the tubing, as well as the complexity and the complexity of the installation process when creating tubing lining in horizontal and inclined tunnels of underground structures.

The basis of the claimed invention is the task of ensuring the ligation of the tubing rings (elimination of joint displacement), reducing the complexity of planning a horizontal section in the tunnel, improving the waterproofing of the tubing ring, as well as simplifying the process of mounting the lining.

The problem is solved in that in the inventive tunneling tubing ring for underground metro structures, including cast-iron lining of the tunnel, assembled from a number of interconnected metal tubing, each made in the form of cylindrical segments interconnected through holes with bolted joints, while on the inner surface the backs of each segment are made of internal circular stiffening ribs forming the inner caissons, the new is that the ring is equipped with a tray unit, yaschim of a concrete part and the metal plate tray formed as a box-profile rectangular cast iron and cast iron tubing. The cast-iron tray plate has a rectangular rectangular back, turning into radial sides with the formation of two internal caissons. Holes are made in the parallel and radial sides of the inner caissons, through which the tray plate is connected both to the cast-iron tubing of its own tubing ring and to the tray plate of the adjacent ring adjacent to it by means of bolted joints with waterproofing and pressure washers. At the same time, chased grooves were made on the parallel and radial sides for subsequent sealing of the joints of the plate joints with the cylindrical segments and with each other.

Moreover, the inner caissons of the cast-iron tray plate are reinforced with stiffeners in which rigging holes are made, and from the outside, the tray plate is equipped with stiffeners that form the outer caissons and have holes located at the intersections of the stiffeners for fitting reinforcement in them when pouring the reinforced concrete part of the tray block.

In the central outer caisson of the cast-iron tray plate in the center of the longitudinal axis, a large-diameter grouting hole was made with reinforcement for a threaded plug, and two small-diameter grouting holes in the adjacent outer caissons with a mirror arrangement relative to the transverse axis of the tray at the corners of the said caissons.

And in the trough plate in the holes of parallel and radial sides on the inside, there are additionally made conical recesses for waterproofing washers and cylindrical recessing platforms for clamping washers.

The proposed tunnel ring is illustrated by drawings, which depict:

figure 1 is a General view of two adjacent tunnel tubing rings with a dressing between them;

figure 2 is a view a in figure 1 (the first tunnel tubing ring assembly);

figure 3 is a view of B in figure 1 (adjacent tubing ring assembly);

figure 4 - remote element In figure 2;

figure 5 is a view of figure 2;

figure 6 is a view of L in figure 2;

Fig.7 is a section DD in Fig.5;

in Fig.8 is a cross-section EE in Fig.5;

figure 9 is a section FJ in figure 5;

figure 10 is a section ZZ in figure 5;

figure 11 is a cross section Y-figure 5;

in Fig.12 - an external element And in Fig.9;

in Fig.13 - remote element K in Fig.11.

The inventive tunnel tubing ring 1 consists of a cast-iron tray plate 2 and adjacent cast-iron tubing 3, as well as a number of tubing 4 made in the form of cylindrical segments. The indicated plate and tubing are interconnected by radial sides by bolted joints 5 with waterproofing 6 and clamping 7 washers.

The cast-iron tray plate 2 has a rectangular flat back 8, which passes into the radial flanges H, forming two inner caissons M. The radial flanges H and the parallel flanges P in the inner caissons M have openings 9. The inner caissons M of the tray 2 are reinforced with stiffeners P, having rigging holes 10. On the outside, the tray plate 2 has stiffening ribs C forming the outer caissons T. These ribs P have openings 11 that are located at the intersections of the stiffening ribs C, for fitting reinforcement in them with pouring the reinforced concrete part of the tray block (conventionally not shown in the drawings).

In the outer central caisson T along the central longitudinal axis there is a large diameter grouting hole 12 with a reinforcement 13 for the threaded plug 14. In the adjacent outer caissons T there are also two grouting holes 15 of smaller diameter for the threaded plugs 16 and with a mirror location relative to the transverse axis in the corners of these caissons. On the parallel P and radial H sides of the inner caissons M, chased grooves 17 are made for subsequent sealing of the joints of the joints of the plate 2 with the tubing cylindrical segments 3, 4 and with each other.

Additionally, in the tray plate, on the holes of the parallel П and radial Н sides, conical recesses 18 are made under the waterproofing washers 6 and cylindrical recessing platforms 19 under the pressure washers 7 on the inside.

The tunneling tubing ring made in this way eliminates the displacement of its docking with adjacent rings, reduces the complexity when planning horizontal sections in subways, improves their waterproofing, and also significantly simplifies the process of installing the tubing lining.

Claims (4)

1. A tunneling tubing ring for underground metro structures, including a cast-iron lining of a tunnel, assembled from a series of interconnected metal tubing, each made in the form of cylindrical segments, interconnected through holes with bolted joints, while on the inner surface of the back of each segment there are internal circular stiffeners forming internal caissons, characterized in that the ring is equipped with a tray unit, consisting of a reinforced concrete part and a metal lot a slab made in the form of a box-shaped cast-iron casting of a rectangular profile and cast-iron tubing, while the cast-iron tray plate has a flat back of rectangular shape, turning into radial sides with the formation of two internal caissons, and holes are made in the parallel and radial sides of these caissons through which the plate is connected both with cast-iron tubing of its own ring and with a tray plate of the adjacent ring adjacent to it by means of bolted joints with waterproofing and clamping washers, in addition, chased grooves are made on the parallel and radial sides for subsequent sealing of the joints of the joints of the plates with the cylindrical segments and with each other. 2. The tunneling tubing ring according to claim 1, characterized in that the inner caissons of the cast-iron tray plate are reinforced with stiffeners in which rigging holes are made, and from the outside, the tray plate is equipped with stiffeners that form the outer caissons and have openings located at the intersection points stiffeners, for installing reinforcement in them when pouring the reinforced concrete part of the tray block. 3. The tunnel tubing ring according to claim 2, characterized in that in the central outer caisson of the cast-iron tray plate in the center of the longitudinal axis there is a grouting hole of large diameter with reinforcement for a threaded plug, and two grouting holes in the adjacent outer caissons are made diameter with a mirror arrangement relative to the transverse axis of the tray in the corners of these caissons. 4. The tunnel tubing ring according to claim 1 to 3, characterized in that in the trough plate in the holes of the parallel and radial sides from the inside there are additionally made conical recesses for waterproofing washers and cylindrical recessing platforms for pressure washers.

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