RU2729474C1 - Method for erection of three-vault subway station of closed method for production of pylon type works - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to construction and can be used in construction of underground stations erected by closed method of works. According to the method, monolithic reinforced concrete frame posts are concreted within the station tunnels and on the sides of the proposed passages for passengers. After reinforcement strength of posts in formed in lining of niche tunnels, beams framing beams are installed, at first lower, then upper ones. Gap between beams and support parts of permanent structures of tunnels is filled with high-quality non-shrinking solution. In order to combine metal beams and with steel tubings in a single combined section space between tubings and beams is filled with concrete, inner volume of beams is filled with cement-sand solution. Temporary filling tubings are dismantled under the framing protection of the openings. After dismantling of temporary filling tubings, monolithic passages for passage of passengers with reinforced upper arch are built between side tunnels and middle station tunnel. After the end of construction of station lining in side tunnels passenger platforms and rail track structures are built, in the middle station tunnel passenger platform structures are constructed.

EFFECT: improved manufacturability of creation of openings for passage of passengers when erecting three-terminal vault stations of deep pylon type, increased speed of construction, as well as reduced possible deposits of day surface.

1 cl, 3 dwg

Description

The invention relates to construction and can be used in the construction of subway stations, erected in a closed way of production of work.

It is known that pylon-type three-vaulted metro stations are constructed in a closed way using erectors without opening the earth's surface. Responsible and labor-intensive work in the construction of three-vaulted pylon-type stations is the construction of passages between the side and middle station tunnels (Tunnels and subways. Volkov V.P., Naumov S.N., Pirozhkova A.N., Khrapov V.G., ed. . 2nd revised and supplemented Moscow, "Transport", 1975, pp. 508-519).

Known three-vaulted subway station of the pylon type, including two side station tunnels, the diameter of which is determined from the conditions for placing in them structures of rail tracks for the movement of subway trains and passenger platforms, and the middle station tunnel for accommodating the passenger platform of the middle hall. All three station tunnels are located at the same level, the lining of the tunnels does not intersect with gaps between them, the size of which depends on the geological conditions of construction. Three-vaulted pylon-type stations are lined with cast-iron or reinforced concrete tubing of equal and / or similar diameter for the side and middle station tunnels (8.5 m and / or 9.5 m). The gaps between the side and middle station tunnels are from 0.65 m to 3 m clear. For the formation of passages between the middle and side station tunnels, monolithic reinforced concrete walkways are provided ("Tunnels and subways". Volkov V.P., Naumov S.N., Pirozhkova A.N., Khrapov V.G., 2nd revised edition and additional Moscow, "Transport", 1975, pp. 418-425).

A three-vaulted metro station of a closed method of pylon-type work is known, including three non-intersecting round-section tunnels with the architectural decoration of all three tunnels, a medium tunnel of large diameter and two, smaller in diameter, side tunnels connected to the middle tunnel by monolithic reinforced concrete walkways with openings located in them for the passage of passengers to the train cars, which alternate with wall sections made in the form of pylons, as well as passenger platforms and two rail tracks (Patent for a useful model of the Russian Federation No. 103817, publ. from 04/27/2011, Bul. No. 12).

The disadvantage of this design of the three-vaulted station is: the use of side station tunnels 8.5 meters from cast-iron tubing and combined lining of the middle station tunnel, which has a vault of cast-iron tubing with a diameter of 9.5 meters, resting on a monolithic reinforced concrete slab with internal metal insulation, the use of expensive cast iron is provided. material and a complex combined structure of the middle tunnel, requiring a large amount of monolithic and welding works.

There is a known method of erecting a three-vaulted subway station of a closed method of pylon-type work, which consists in driving three station tunnels that do not intersect with each other, while the lining of the station tunnels is made of cast-iron tubing of a circular outline, when driving the opening part of the station, rings with frame tubing are mounted, the opening frames are formed, from reinforced shaped tubing with additional stiffeners with a certain sequence of their installation. In the side station tunnels, structures of rail tracks and passenger boarding platforms are placed, with technical zones located under them, a passenger platform is placed in the middle tunnel, with service rooms located under it, the side station tunnels are connected to the middle monolithic reinforced concrete walkways for the passage of passengers to train carriages, which alternate with wall sections made in the form of pylons (Construction of metro tunnels // N.A. Nechaev, A.A. Chizhov. - Moscow: State Transport Railway Publishing House, 1958. - p. 242-247, Fig. 182 and Fig. . 186).

The disadvantages of this method of erecting a three-vaulted subway station of a closed method of production of pylon-type works is a low-tech process of forming aperture frames from reinforced shaped tubing of individual manufacture for each diameter of station tunnels and the use of cast iron - an expensive material.

The technical result that can be obtained by implementing the invention consists in increasing the manufacturability of creating openings for the passage of passengers during the construction of three-vaulted stations of the deep-laid pylon-type subway, increasing the construction speed, as well as reducing the possible settlement of the day surface.

To achieve this technical result in the proposed method for the construction of a three-vaulted subway station of a closed method of pylon-type work, consisting of driving three non-intersecting station tunnels, in lining tunnels with tubing circular outlines, forming aperture frames in lining tunnels in places of supposed openings between tunnels, placing in the side tunnels of rail track structures and passenger boarding platforms with technical zones located under them, placement in the middle station tunnel of the passenger platform with service rooms located under it, as well as the connection of the side tunnels with the middle tunnel by monolithic reinforced concrete walkways with openings for the passage of passengers located in them to train carriages, according to the invention, the lining of the station tunnels is made of reinforced concrete tubing of a circular shape, the opening frames are made in the form of frames consisting of monolithic reinforced concrete x racks, as well as the upper and lower metal beams pivotally supported on them, to form frames in the upper and lower parts of the proposed openings for the passage of passengers during the installation of lining of station tunnels, cast steel tubing is installed, the rib height of which is less than the height of the rib of reinforced concrete tubing lining of station tunnels , which makes it possible to form niches for the placement of steel beams overlapping the passenger aisles, on the sides of the proposed openings in the lining of the tunnels, monolithic reinforced concrete racks are concreted, then after the racks are hardened with concrete, metal frame beams are installed, first the lower and then the upper ones, the gap between the beams and the support parts of the permanent structures of the tunnels are filled with a high-quality non-shrinking mortar, thus the beams are included in joint work with the main structures of the tunnels, to combine metal beams with steel tubing into a single combined section, the space between at tubing and beams it is filled with concrete, the internal volume of the beams is filled with a cement-sand mortar, then, under the protection of the frames, temporary filling tubes are dismantled and monolithic reinforced concrete walkways with a reinforced upper arch are erected.

Introduction to the proposed method of erecting a three-vaulted metro station of a closed method for the production of pylon-type lining of station tunnels from reinforced concrete tubing of a circular outline, the implementation of opening frames in the form of frames, consisting of monolithic reinforced concrete racks, as well as the upper and lower metal beams hingedly supported on them, installation in the upper and lower parts of the proposed openings for the passage of passengers during the installation of lining of station tunnels of cast steel tubing, the height of the rib of which is less than the height of the rib of reinforced concrete tubing lining of station tunnels, which makes it possible to form niches for placing steel beams overlapping passenger aisles, concreting on the sides of the proposed openings in the lining of the tunnels of monolithic reinforced concrete racks, then, after curing the concrete of the racks, the installation of metal frame beams, first the lower and then the upper ones, filling the gap between the beams and the supporting parts constantly tunnel structures with high-quality non-shrinking mortar, thus the beams are included in joint work with the main tunnel structures, filling with concrete to combine metal beams with steel tubing into a single combined section of the space between tubing and beams, filling the internal volumes of the beams with cement-sand mortar, dismantling under protection framing of temporary filling tubes and the construction of monolithic reinforced concrete walkways with a reinforced upper vault, allows you to obtain a new property, which consists in increasing the rigidity of the frame structures of the openings, reducing the volume of monolithic concrete in the frames and using frame elements before dismantling the temporary filling tubes in the station tunnels, which increases manufacturability and speed of making openings for the passage of passengers from the middle station tunnel to the platforms of the side tunnels, and also reduces the likelihood of significant precipitation of the day surface above the metropolitan station under construction on the.

The invention is illustrated by drawings, where Fig. 1 shows a cross-section of a three-vaulted subway station of a closed method of work, pylon type, in Fig. 2 is a drawing of a longitudinal section of the middle tunnel with a fragment of the opening for the passage of passengers, in Fig. 3 - unit for installing cast steel tubing in the lining of stationary tunnels.

1 - middle station tunnel;

2 - side station tunnels;

3 - track structures in side tunnels;

4 - landing platforms in side tunnels;

5 - monolithic reinforced concrete frames.

6 - tubing for temporary filling of the opening frame;

7 - technical area, under the platforms of the side tunnels;

8 - passenger platform of the middle tunnel;

9 - service rooms under the passenger platform of the middle tunnel;

10 - monolithic reinforced concrete walker between the side and middle tunnel;

11 - aperture for the passage of passengers;

12 - upper metal frame beam;

13 - lower metal frame beam;

14 - cast steel tubing in the lining of station tunnels.

The proposed method for the construction of a three-vaulted subway station of a closed method of performing works of a pylon type is implemented as follows.

A three-vaulted metro station of a closed method of pylon-type work, includes three non-intersecting tunnels, circular cross-section, all three tunnels are constructed using an erector, the tunnels can be of the same diameter, which is determined from the condition of placement in the side tunnels 2 of the structure of rail tracks 3 and landing platforms 4 of the standard width, under the platforms of the side tunnels 2 there are technical zones 7. In the middle tunnel 1 there is a passenger platform 8, under it there are office premises 9. The side tunnels 2 are connected to the middle tunnel 1 by monolithic reinforced concrete walkways 10 with openings 11 for passage located in them passengers. Niches for the installation of the upper 12 and lower 13 metal beams are formed by installing, during the assembly of the lining of station tunnels 1 and 2 in the places of the supposed passenger passages of cast steel tubing 14, the height of the ribs of which is less than the height of the ribs of the reinforced concrete tubing of the lining of tunnels 1 and 2.

Within the station tunnels 1 and 2, on the sides of the intended passages for passengers, monolithic reinforced concrete framing racks are concreted 5. After the concrete pillars 5 have hardened, beams framing openings are installed in the niches formed in the lining of the tunnels, first the lower 13, then the upper 12. The gap between the beams 12, 13 and the supporting parts of the permanent structures of the tunnels are filled with a high-quality non-shrinking mortar, thus the beams 12 and 13 are included in joint work with the main structures of the tunnels. To combine metal beams 12 and 13 with steel tubing 14 into a single combined section, the space between tubing 14 and beams 12 and 13 is filled with concrete, the internal volume of beams 12 and 13 is filled with cement-sand mortar.

Under the protection of the framing of the openings, temporary filling tubing 6 are dismantled, after dismantling the temporary filling tubing 6, the opening frames, consisting of reinforced concrete frames of the framing 5 and steel beams of the upper 12 and lower 13 pivotally supported on them, immediately perceive the force from the open rings, which eliminates additional deformations lining of station tunnels 1 and 2, and also excludes an increase in the precipitation of the day surface over the metro station. After dismantling the temporary filling tubes 6, between the side tunnels 2 and the middle station tunnel 1, monolithic walkways 10 are constructed for the passage of passengers with a reinforced upper arch. After the completion of the construction of the station lining in the side tunnels 2, passenger platforms 4 and rail track structures 3 are constructed, in the middle station tunnel 1, the structures of the passenger platform 8 are constructed.

All steel tubing 14, steel beams 12 and 13, structures of monolithic reinforced concrete pillars 5 on average 1 and side 2 station tunnels will be universal, which will greatly simplify construction and installation work and lead to the unification of the frame elements of openings during the construction of three-span pylon-type stations.

Sources of information

1. Tunnels and subways. Volkov V.P., Naumov S.N., Pirozhkova A.N., Khrapov V.G., ed. 2nd revised and add. Moscow, "Transport", 1975, pp. 508-519.

2. Tunnels and subways. Volkov V.P., Naumov S.N., Pirozhkova A.N., Khrapov V.G., ed. 2nd revised and add. Moscow, "Transport", 1975, pp. 418-425.

3. Patent for a useful model of the Russian Federation No. 103817, publ. from 04/27/2011, Bul. No. 12.

4. Construction of metro tunnels // N.А. Nechaev, A.A. Chizhov. - Moscow: State Transport Railway Publishing House, 1958. - p. 242-247, Fig. 182 and fig. 186 is a prototype.

Claims (1)

A method of erecting a three-vaulted subway station of a closed method of pylon-type work, consisting of driving three station tunnels that do not intersect with each other, in lining tunnels with tubing of a circular shape, forming in the lining of tunnels in places of supposed passages between tunnels of opening frames, placing structures of rail tracks in side tunnels and passenger boarding platforms, with technical zones located under them, placing a passenger platform in the middle station tunnel, with service premises located under it, as well as connecting the side tunnels with the middle tunnel with monolithic reinforced concrete walkways with openings located in them for the passage of passengers to train carriages, differing the fact that the lining of the station tunnels with a circular outline is made of reinforced concrete tubing, the opening frames are made in the form of frames consisting of monolithic reinforced concrete racks, as well as upper and lower metal beams. but resting on racks, to form framing in the upper and lower parts of the intended openings for the passage of passengers during the installation of lining of station tunnels, cast steel tubing is installed, the rib height of which is less than the height of the rib of reinforced concrete tubing lining of station tunnels, which makes it possible to form niches for placing steel beams covering human passages, on the sides of the alleged openings in the lining of the tunnels, monolithic reinforced concrete racks are concreted, then, after the concrete is hardened by the racks, metal frame beams are installed, first the lower and then the upper ones, the gap between the beams and the supporting parts of the permanent structures is filled with high-quality non-shrinking mortar, thus the beams are included in joint work with the main structures of tunnels, to combine metal beams with steel tubing into a single combined section, the space between the tubing and the beams is filled with concrete, the internal volume of the beams is filled It is made with a cement-sand mortar, then, under the protection of the frames, temporary filling tubes are dismantled and monolithic reinforced concrete walkways with a reinforced upper vault are erected.

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